Toshiba Air Conditioner Rav Sm454sdt E User Manual

FILE NO. A08-007

SERVICE MANUAL

AIR-CONDITIONER

SPLIT TYPE

INDOOR UNIT

RAV-SM404SDT-E

RAV-SM454SDT-E

RAV-SM564SDT-E

OUTDOOR UNIT

RAV-SP404AT-E RAV-SP454AT-E

RAV-SP404ATZ-E RAV-SP454ATZ-E

RAV-SP404ATZG-E RAV-SP454ATZG-E

RAV-SP564AT-E RAV-SP804AT-E

RAV-SP564ATZ-E RAV-SP804ATZ-E

RAV-SP564ATZG-E RAV-SP804ATZG-E

R410A

PRINTED IN JAPAN, Jan., 2009 ToMo

7. REFRIGERANT R410A ............................................................................ 33

7-1. Safety During Installation/Servicing ............................................................... 33

7-2. Refrigerant Piping Installation....................................................................... 33

7-3. Tools .................................................................................................................. 37

7-4. Recharging of Refrigerant................................................................................ 37

7-5. Brazing of Pipes................................................................................................ 38

7-6. Instructions for Re-use Piping of R22 or R407C ............................................ 40

8. INDOOR CONTROL CIRCUIT (SLIM DUCTTYPE) ................................. 43

8-1. Indoor Controller Block Diagram..................................................................... 43

8-2. Indoor Controls (Slim DuctType) .................................................................... 46

8-3. Optional Connector Specifications of Indoor P.C. Board .............................. 55

8-4. Indoor Print Circuit Board ................................................................................ 56

9. OUTDOOR CONTROL CIRCUIT.............................................................. 57

9-1. Outdoor Controls .............................................................................................. 57

9-2. Outdoor Print Circuit Board ............................................................................. 68

10. TROUBLESHOOTING .............................................................................. 70

10-1. Summary ofTroubleshooting........................................................................... 70

10-2. Troubleshooting ................................................................................................ 72

11. REPLACEMENT OF SERVICE P.C. BOARD.......................................... 107

11-1. Indoort Unit (Slim DuctType)......................................................................... 107

12. SETUP AT LOCAL SITE AND OTHERS ................................................ 112

12-1. Indoor Unit (Slim DuctType) .......................................................................... 112

12-2. Setup at Local Site / Others ........................................................................... 119

12-3. How to Set up Central Control Address Number ......................................... 121

12-4. Outdoor Unit.................................................................................................... 126

13. ADDRESS SETUP.................................................................................. 134

13-1. Address Setup Procedure.............................................................................. 134

13-2. Address Setup & Group Control.................................................................... 135

13-3. Remote Controller Wiring............................................................................... 138

13-4. Address Setup (Manual setting from remote controller)............................. 139

13-5. Confirmation of Indoor Unit No. Position ..................................................... 140

14. DETACHMENTS ..................................................................................... 142

14-1. Indoor Unit...................................................................................................... 142

14-2. Outdoor Unit.................................................................................................... 147

15. EXPLODED VIEWS AND PARTS LIST .................................................. 164

15-1. Indoor Unit....................................................................................................... 164

15-2. Outdoor Unit.................................................................................................... 167

– 3 –

SAFETY CAUTION

The important contents concerned to the safety are described on the product itself and on this Service Manual.

Please read this Service Manual after understanding the described items thoroughly in the following contents

(Indications/Illustrated marks), and keep them.

[Explanation of indications]

Indication

Explanation

Indicates contents assumed that an imminent danger causing a death or serious injury of

the repair engineers and the third parties when an incorrect work has been executed.

DANGER

Indicates possibilities assumed that a danger causing a death or serious injury of the

repair engineers, the third parties, and the users due to troubles of the product after work

when an incorrect work has been executed.

WARNING

CAUTION

Indicates contents assumed that an injury or property damage (∗) may be caused on the

repair engineers, the third parties, and the users due to troubles of the product after work

when an incorrect work has been executed.

∗ Property damage : Enlarged damage concerned to property, furniture, and domestic animal/pet

[Explanation of illustrated marks]

Mark

Explanation

Indicates prohibited items (Forbidden items to do)

The sentences near an illustrated mark describe the concrete prohibited contents.

Indicates mandatory items (Compulsory items to do)

The sentences near an illustrated mark describe the concrete mandatory contents.

Indicates cautions (Including danger/warning)

The sentences or illustration near or in an illustrated mark describe the concrete cautious contents.

[Confirmation of warning label on the main unit]

Confirm that labels are indicated on the specified positions

(Refer to the Parts disassembly diagram (Outdoor unit).)

If removing the label during parts replace, stick it as the original.

DANGER

Turn “OFF” the breaker before removing the front panel and cabinet, otherwise an electric

shock is caused by high voltage resulted in a death or injury.

During operation, a high voltage with 400V or higher of circuit (∗) at secondary circuit of the

high-voltage transformer is applied.

If touching a high voltage with the naked hands or body, an electric shock is caused even if using an

electric insulator.

Turn off breaker.

Execute discharge

∗ : For details, refer to the electric wiring diagram.

When removing the front panel or cabinet, execute short-circuit and discharge between

high-voltage capacitor terminals.

If discharge is not executed, an electric shock is caused by high voltage resulted in a death or injury.

between terminals. After turning off the breaker, high voltage also keeps to apply to the high-voltage capacitor.

Do not turn on the breaker under condition that the front panel and cabinet are removed.

An electric shock is caused by high voltage resulted in a death or injury.

Prohibition

– 4 –

WARNING

Before troubleshooting or repair work, check the earth wire is connected to the earth

terminals of the main unit, otherwise an electric shock is caused when a leak occurs.

If the earth wire is not correctly connected, contact an electric engineer for rework.

Check earth wires.

Prohibition of modification.

Use specified parts.

Do not modify the products.

Do not also disassemble or modify the parts. It may cause a fire, electric shock or injury.

For spare parts, use those specified (∗).

If unspecified parts are used, a fire or electric shock may be caused.

∗: For details, refer to the parts list.

Before troubleshooting or repair work, do not bring a third party (a child, etc.) except

the repair engineers close to the equipment.

It causes an injury with tools or disassembled parts.

Do not bring a child

close to the equipment.

Please inform the users so that the third party (a child, etc.) does not approach the equipment.

Connect the cut-off lead wires with crimp contact, etc, put the closed end side

upward and then apply a water-cut method, otherwise a leak or production of fire is

caused at the users’ side.

Insulating measures

When repairing the refrigerating cycle, take the following measures.

1) Be attentive to fire around the cycle. When using a gas stove, etc, be sure to put out fire

before work; otherwise the oil mixed with refrigerant gas may catch fire.

2) Do not use a welder in the closed room.

No fire

When using it without ventilation, carbon monoxide poisoning may be caused.

3) Do not bring inflammables close to the refrigerant cycle, otherwise fire of the welder may

catch the inflammables.

Check the used refrigerant name and use tools and materials of the parts which

match with it.

For the products which use R410A refrigerant, the refrigerant name is indicated at a

position on the outdoor unit where is easy to see. To prevent miss-charging, the route of the

service port is changed from one of the former R22.

For an air conditioner which uses R410A, never use other refrigerant than R410A.

For an air conditioner which uses other refrigerant (R22, etc.), never use R410A.

If different types of refrigerant are mixed, abnormal high pressure generates in the

refrigerating cycle and an injury due to breakage may be caused.

Do not charge refrigerant additionally.

If charging refrigerant additionally when refrigerant gas leaks, the refrigerant composition in

the refrigerating cycle changes resulted in change of air conditioner characteristics or

refrigerant over the specified standard amount is charged and an abnormal high pressure is

applied to the inside of the refrigerating cycle resulted in cause of breakage or injury.

Therefore if the refrigerant gas leaks, recover the refrigerant in the air conditioner, execute

vacuuming, and then newly recharge the specified amount of liquid refrigerant.

In this time, never charge the refrigerant over the specified amount.

Refrigerant

When recharging the refrigerant in the refrigerating cycle, do not mix the refrigerant

or air other than R410A into the specified refrigerant.

If air or others is mixed with the refrigerant, abnormal high pressure generates in the

refrigerating cycle resulted in cause of injury due to breakage.

After installation work, check the refrigerant gas does not leak.

If the refrigerant gas leaks in the room, poisonous gas generates when gas touches to fire

such as fan heater, stove or cocking stove though the refrigerant gas itself is innocuous.

Never recover the refrigerant into the outdoor unit.

When the equipment is moved or repaired, be sure to recover the refrigerant with

recovering device. The refrigerant cannot be recovered in the outdoor unit; otherwise a

serious accident such as breakage or injury is caused.

After repair work, surely assemble the disassembled parts, and connect and lead the

removed wires as before. Perform the work so that the cabinet or panel does not

catch the inner wires.

If incorrect assembly or incorrect wire connection was done, a disaster such as a leak or

fire is caused at user’s side.

Assembly/Cabling

– 5 –

WARNING

After the work has finished, be sure to use an insulation tester set (500V Megger) to

check the resistance is 2MΩ or more between the charge section and the non-charge

metal section (Earth position).

If the resistance value is low, a disaster such as a leak or electric shock is caused at user’s

side.

Insulator check

Ventilation

When the refrigerant gas leaks during work, execute ventilation.

If the refrigerant gas touches to a fire, poisonous gas generates.

A case of leakage of the refrigerant and the closed room full with gas is dangerous because

a shortage of oxygen occurs. Be sure to execute ventilation.

When checking the circuit inevitably under condition of the power-ON, use rubber

gloves and others not to touch to the charging section.

If touching to the charging section, an electric shock may be caused.

Be attentive to

electric shock

When the refrigerant gas leaks, find up the leaked position and repair it surely.

If the leaked position cannot be found up and the repair work is interrupted, pump-down

and tighten the service valve, otherwise the refrigerant gas may leak into the room.

The poisonous gas generates when gas touches to fire such as fan heater, stove or cocking

stove though the refrigerant gas itself is innocuous.

When installing equipment which includes a large amount of charged refrigerant

such as a multi air conditioner in a sub-room, it is necessary that the density does

not the limit even if the refrigerant leaks.

Compulsion

If the refrigerant leaks and exceeds the limit density, an accident of shortage of oxygen is

caused.

For the installation/moving/reinstallation work, follow to the Installation Manual.

If an incorrect installation is done, a trouble of the refrigerating cycle, water leak, electric

shock or fire is caused.

After repair work has finished, check there is no trouble.

If check is not executed, a fire, electric shock or injury may be caused.

For a check, turn off the power breaker.

Check after repair

After repair work (installation of front panel and cabinet) has finished, execute a test

run to check there is no generation of smoke or abnormal sound.

If check is not executed, a fire or an electric shock is caused.

Before test run, install the front panel and cabinet.

Check the following items after reinstallation.

Check after reinstallation

1) The earth wire is correctly connected.

2) The power cord is not caught in the product.

3) There is no inclination or unsteadiness and the installation is stable.

If check is not executed, a fire, an electric shock or an injury is caused.

CAUTION

Be sure to put on the gloves (∗) and a long sleeved shirt:

otherwise an injury may be caused with the parts, etc.

(∗) Heavy gloves such as work gloves

Put on gloves

Cooling check

When the power was turned on, start to work after the equipment has been

sufficiently cooled.

As temperature of the compressor pipes and others became high due to cooling/heating

operation, a burn may be caused.

– 6 –

• New Refrigerant (R410A)

This air conditioner adopts a new HFC type refrigerant (R410A) which does not deplete the ozone layer.

1. Safety Caution Concerned to New Refrigerant

The pressure of R410A is high 1.6 times of that of the former refrigerant (R22).

Accompanied with change of refrigerant, the refrigerating oil has been also changed.

Therefore, be sure that water, dust, the former refrigerant or the former refrigerating oil is not mixed into the

refrigerating cycle of the air conditioner with new refrigerant during installation work or service work.

If an incorrect work or incorrect service is performed, there is a possibility to cause a serious accident.

Use the tools and materials exclusive to R410A to purpose a safe work.

2. Cautions on Installation/Service

1) Do not mix the other refrigerant or refrigerating oil.

For the tools exclusive to R410A, shapes of all the joints including the service port differ from those of

the former refrigerant in order to prevent mixture of them.

2) As the use pressure of the new refrigerant is high, use material thickness of the pipe and tools which are

specified for R410A.

3) In the installation time, use clean pipe materials and work with great attention so that water and others do

not mix in because pipes are affected by impurities such as water, oxide scales, oil, etc.

Use the clean pipes.

Be sure to brazing with flowing nitrogen gas. (Never use gas other than nitrogen gas.)

4) For the earth protection, use a vacuum pump for air purge.

5) R410A refrigerant is azeotropic mixture type refrigerant.

Therefore use liquid type to charge the refrigerant. (If using gas for charging, composition of the

refrigerant changes and then characteristics of the air conditioner change.)

3. Pipe Materials

For the refrigerant pipes, copper pipe and joints are mainly used.

It is necessary to select the most appropriate pipes to conform to the standard.

Use clean material in which impurities adhere inside of pipe or joint to a minimum.

1) Copper pipe

The pipe thickness, flare finishing size, flare nut and others differ according to a refrigerant type.

When using a long copper pipe for R410A, it is recommended to select “Copper or copper-base pipe

without seam” and one with bonded oil amount 40mg/10m or less.

Also do not use crushed, deformed, discolored (especially inside) pipes.

(Impurities cause clogging of expansion valves and capillary tubes.)

Use the flare nuts which are attached to the air conditioner unit.

2) Joint

The flare joint and socket joint are used for joints of the copper pipe.

The joints are rarely used for installation of the air conditioner. However clear impurities when using them.

– 7 –

4. Tools

1. Required Tools for R410A

Mixing of different types of oil may cause a trouble such as generation of sludge, clogging of capillary,

etc. Accordingly, the tools to be used are classified into the following three types.

1) Tools exclusive for R410A (Those which cannot be used for conventional refrigerant (R22))

2) Tools exclusive for R410A, but can be also used for conventional refrigerant (R22)

3) Tools commonly used for R410A and for conventional refrigerant (R22)

The table below shows the tools exclusive for R410A and their interchangeability.

Tools exclusive for R410A (The following tools for R410A are required.)

Tools whose specifications are changed for R410A and their interchangeability

R410A

Conventional air

air conditioner installation

conditioner installation

No.

Used tool

Usage

Existence of

new equipment

for R410A

Whether conventional

equipment can be used

equipment

can be used

Flare tool

Pipe flaring

Yes

Ye s

*(Note)

N o

Ye s

*(Note)

‚

Copper pipe gauge

for adjusting

projection margin

Flaring by conventional

flare tool

Torque wrench

Gauge manifold

Charge hose

Tightening of flare nut

„

ꢀ

†

Evacuating, refrigerant

charge, run check, etc.

N o

Vacuum pump adapter Vacuum evacuating

Electronic balance for

Ye s

N o

Ye s

N o

Ye s

‡

Refrigerant charge

refrigerant charging

Leakage detector

Gas leakage check

(Note) When flaring is carried out for R410A using the conventional flare tools, adjustment of projection

margin is necessary. For this adjustment, a copper pipe gauge, etc. are necessary.

General tools (Conventional tools can be used.)

In addition to the above exclusive tools, the following equipments which serve also for R22 are necessary

as the general tools.

1) Vacuum pump. Use vacuum pump by

attaching vacuum pump adapter.

2) Torque wrench

3) Pipe cutter

7) Screwdriver (+, –)

8) Spanner or Monkey wrench

9) Hole core drill

4) Reamer

10) Hexagon wrench (Opposite side 4mm)

11) Tape measure

5) Pipe bender

6) Level vial

12) Metal saw

Also prepare the following equipments for other installation method and run check.

1) Clamp meter

2) Thermometer

3) Insulation resistance tester (Megger)

4) Electroscope

– 8 –

1. SPECIFICATIONS

1-1. Indoor Unit

1-1-1. 4-Way Air Discharge CassetteType

Indoor unit

Model

RAV-SM564UT-E

RAV-SM804UT-E

Outdoor unit

RAV-SP564AT(Z)(ZG)-E

RAV-SP804AT(Z)(ZG)-E

Cooling capacity

Heating capacity

Power supply

(kW)

5.3

5.6

7.1

8.0

1 phase 230V (220 – 240V) 50Hz

Running current

Power consumption

(A)

(kW)

(%)

6.82 – 6.25

8.72 – 7.99

1.47

1.86

Cooling

Heating

Power factor

EER

3.61

3.82

Energy efficiency class ∗

Running current

Power consumption

Power factor

Electrical

characteristics

(A)

(kW)

(%)

5.61 – 5.14

1.21

8.95 – 8.20

1.91

COP

4.63

4.19

Energy efficiency class ∗

Maximum current

Main unit

(A)

13.30

20.30

Zinc hot dipping steel plate

Appearance

Model

RBC-U31PG (W, WS)-E, RBC-U31PGS (W, WS)-E

(W) : 2.5GY 9.0/0.5, (WS) : 2.5GY 9.0/0.5, 8B3/0.3

Ceiling panel

(Sold separately)

Panel color

Height

Width

Depth

Height

Width

Depth

(mm)

(kg)

256

840

256

840

Main unit

Outer

dimension

Ceiling panel

(Sold separately)

950

Main unit

Total weight

Ceiling panel (Sold separately)

(kg)

4.2

Heat exchanger

Finned tube

Turbo fan

Fan

Fan unit

Air filter

Standard air flow H/M/L

Motor

(m³/min.)

(W)

17.5 / 14.5 / 13.0

20.5 / 16.0 / 13.5

Standard filter attached (Long life filter)

RBC-AMT31E, AMT32E, AMS41E, AS21E2,

AX31U (W, WS)-E, TCB-AX21E2

Controller (Sold separately)

Sound pressure level

Sound power level

H/M/L

(dB•A)

(mm)

32 / 29 / 28

47 / 44 / 43

12.7

35 / 31 / 28

50 / 46 / 43

15.9

H/M/L

Gas side

Liquid side

Drain port

Connecting pipe

(mm)

6.4

9.5

(mm)

VP25

∗ : IEC standard

– 9 –

1-1-2. Concealed DuctType

Indoor unit

Model

RAV-SM562BT-E

RAV-SM802BT-E

Outdoor unit

RAV-SP564AT(Z)(ZG)-E

RAV-SP804AT(Z)(ZG)-E

Cooling capacity

Heating capacity

Power supply

(kW)

5.0

5.6

7.1

8.0

1 phase 230V (220 – 240V) 50Hz

Running current

Power consumption

Power factor

(A)

(kW)

(%)

7.24 – 6.63

10.36 – 9.49

1.56

2.21

Cooling

EER

3.21

Energy efficiency class*

Running current

Power consumption

Power factor

10.36 – 9.49

2.21

Electrical

characteristics

(A)

(kW)

(%)

7.19 – 6.59

1.55

Heating

COP

3.61

3.62

Energy efficiency class *

Maximum current

(A)

13.60

20.60

Appearance

Main unit

Zinc hot dipping steel plate

Height

Width

Depth

(mm)

(kg)

320

700

800

320

1000

800

Outer

dimension

Total weight

Heat exchanger

Finned tube

Centrifugal

Fan

Fan unit

Standard air flow H/M/L

Motor

(m³/min.)

(W)

13.0 / 11.9 / 9.8

120

19.0 / 16.2 / 13.3

120

TCB-UFM21BE

TCB-UFH61BE

TCB-UFM21BFCE

TCB-UFH61BFCE

TCB-UFM31BE

TCB-UFH71BE

TCB-UFM21BFCE

TCB-UFH61BFCE

Air filter (Sold separately)

RBC-AMT31E, AMT32E, AMS41E, AS21E2,

TCB-AX21E2

Controller (Sold separately)

Sound pressure level

Sound power level

H/M/L

(dB•A)

(mm)

40 / 37 / 33

55 / 52 / 48

12.7

40 / 37 / 34

55 / 52 / 49

15.9

H/M/L

Gas side

Liquid side

Drain port

Connecting pipe

(mm)

6.4

9.5

(mm)

VP25

∗ : IEC standard

– 10 –

1-1-3. Under CeilingType

Indoor unit

Model

RAV-SM562CT-E

RAV-SM802CT-E

Outdoor unit

RAV-SP564AT(Z)(ZG)-E

RAV-SP804AT(Z)(ZG)-E

Cooling capacity

Heating capacity

Power supply

(kW)

5.0

5.6

7.1

8.0

1 phase 230V (220 – 240V) 50Hz

Running current

Power consumption

Power factor

(A)

(kW)

(%)

7.24 – 6.63

10.36 – 9.49

1.56

2.21

Cooling

EER

3.21

Energy efficiency class ∗

Running current

Power consumption

Power factor

10.12 – 9.28

2.16

Electrical

(A)

(kW)

(%)

6.82 – 6.25

1.47

characteristics

Heating

COP

3.81

3.70

Energy efficiency class ∗

Maximum current

(A)

13.50

20.50

Appearance

Main unit

Fan

Shine white

Height

Width

Depth

(mm)

(kg)

210

910

680

210

1180

680

Outer

dimension

Total weight

Heat exchanger

Finned tube

Centrifugal

Fan unit

Air filter

Standard air flow H/M/L

Motor

(m³/min.)

(W)

13.0 / 11.2 / 10.0

18.5 / 16.7 / 14.6

Attached main unit

RBC-AMT31E, AMT32E, AMS41E, AS21E2,

TCB-AX21E2, AX22CE2

Controller (Sold separately)

Sound pressure level

Sound power level

H/M/L

(dB•A)

(mm)

36 / 33 / 30

51 / 48 / 45

12.7

38 / 36 / 33

53 / 51 / 48

15.9

H/M/L

Gas side

Liquid side

Drain port

Connecting pipe

(mm)

6.4

9.5

(mm)

VP25

∗ : IEC standard

– 11 –

1-1-4. High WallType

Indoor unit

Model

RAV-SM562KRT-E

RAV-SM802KRT-E

Outdoor unit

RAV-SP564AT(Z)(ZG)-E

RAV-SP804AT(Z)(ZG)-E

Cooling capacity

Heating capacity

Power supply

(kW)

5.0

5.6

6.9

8.0

1 phase 230V (220 – 240V) 50Hz

Running current

Power consumption

Power factor

(A)

(kW)

(%)

7.24 – 6.63

11.25 – 10.31

1.56

2.40

Cooling

EER

3.21

2.88

Energy efficiency class ∗

Running current

Power consumption

Power factor

Electrical

(A)

(kW)

(%)

7.19 – 6.59

1.55

11.25 – 10.31

characteristics

2.40

Heating

COP

3.61

3.33

Energy efficiency class ∗

Maximum current

(A)

13.40

20.40

Appearance

Main unit

Fan

Pure white

Height

Width

Depth

(mm)

(kg)

298

998

221

298

998

221

Outer

dimension

Total weight

Heat exchanger

Finned tube

Cross flow fan

Fan unit

Air filter

Standard air flow H/M/L

Motor

(m³/min.)

(W)

14.0 / 12.5 / 10.7

18.5 / 14.6 / 12.2

Attached main unit

RBC-AMT31E, AMT32E, AMS41E, AS21E2,

TCB-AX21E2

Controller (Sold separately)

(FCU comes with WH-H2UE)

Sound pressure level

Sound power level

H/M/L

(dB•A)

(mm)

39 / 36 / 33

54 / 51 / 48

12.7

45 / 41 / 36

60 / 56 / 51

15.9

H/M/L

Gas side

Liquid side

Drain port

Connecting pipe

(mm)

6.4

9.5

(mm)

VP16

∗ : IEC standard

– 12 –

1-1-5. Compact 4-Way Air Discharge CassetteType (600 × 600)

Indoor unit

RAV-SM

402MUT-E

452MUT-E

562MUT-E

Model

Outdoor unit

RAV-SP 404AT(Z)(ZG)-E 454AT(Z)(ZG)-E 564AT(Z)(ZG)-E

Cooling capacity

Heating capacity

Power supply

(kW)

3.6

4.0

5.0

5.6

4.5

1 phase 230V (220 – 240V) 50Hz

Running current

Power consumption

Power factor

(A)

(kW)

(%)

5.05 – 4.63

5.82 – 5.33

7.24 – 6.63

1.00

1.19

1.56

Cooling

EER

3.60

3.36

3.21

Energy efficiency class ∗

Running current

Power consumption

Power factor

Electrical

characteristics

(A)

(kW)

(%)

4.79 – 4.39

5.67 – 5.20

7.14 – 6.55

1.54

0.97

1.16

Heating

COP

4.12

3.88

3.64

Energy efficiency class ∗

Maximum current

Main unit

(A)

—

13.60

Zinc hot dipping steel plate

RBC-UM11PG (W)-E

Appearance

Model

Panel color

Height

Width

Ceiling panel

(Sold separately)

Moon-white (Muncel 2.5GY 9.0/0.5)

(mm)

(kg)

268

Main unit

575

Depth

575

Outer

dimension

Height

Width

700

Ceiling panel

(Sold separately)

Depth

700

Main unit

Total weight

Ceiling panel (Sold separately)

(kg)

Heat exchanger

Finned tube

Turbo fan

Fan

Fan unit

Air filter

Standard air flow H/M/L

Motor

(m³/min.)

(W)

11.0 / 9.2 / 7.8

13.3 / 11.2 / 9.1

Long life filter

RBC-AMT31E, AMT32E, AMS41E, AS21E2,

TCB-AX21E2

Controller (Sold separately)

Sound pressure level

Sound power level

H/M/L

(dB•A)

(mm)

40 / 36 / 31

55 / 51 / 46

43 / 39 / 34

58 / 54 / 49

H/M/L

Gas side

Liquid side

Drain port

12.7

6.4

Connecting pipe

(mm)

VP25

∗ : IEC standard

– 13 –

Indoor unit 1

Indoor unit 2

Outdoor unit

RAV-SM402MUT-E

RAV-SP804AT(Z)(ZG)-E

7.1

Model

Cooling capacity

Heating capacity

(kW)

8.0

Indoor unit

Power supply

1 phase 230V (220 – 240V) 50Hz

Running current

Power consumption

Power factor

EER

(A)

(kW)

(%)

10.36 – 9.49

2.21

Cooling

3.21

Energy efficiency class ∗

Running current

Power consumption

Power factor

Electrical

characteristics

(A)

(kW)

(%)

10.12 – 9.28

2.16

Heating

Fan

COP

3.70

Energy efficiency class ∗

Turbo fan

11.0 / 9.2 / 7.8

Fan unit

Standard air flow H/M/L

Motor

(m³/min.)

(W)

Sound pressure level

Sound power level

H/M/L

(dB•A)

40 / 36 / 31

55 / 51 / 46

(dB•A)

Outdoor unit

Power supply

1 phase 230V (220 – 240V) 50Hz

Standard length

(m)

7.5

Min. length

Max. total length

Refrigerant

pipe

Refrigerant charging amount

(Charge-less up to 30m)

40g/m

(31m to 50m)

Outdoor lower

Outdoor higher

(m)

Height

difference

Fan

Propeller fan

Fan unit

Standard air flow volume

Motor

(m³/min.)

(W)

Main

(mm)

15.9

Gas side

Sub

(mm)

12.7

Connecting

pipe

Main

(mm)

9.5

Liquid side

Sub

(mm)

6.4

Sound pressure level

Sound power level

Cooling/Heating

(dB•A)

48 / 49

64 / 65

∗ : IEC standard

– 14 –

1-1-6. Slim DuctType

Indoor unit

RAV-SM

404SDT-E

454SDT-E

564SDT-E

Model

Outdoor unit

Cooling capacity

RAV-SP 404AT(Z)(ZG)-E 454AT(Z)(ZG)-E 564AT(Z)(ZG)-E

(kW)

3.6

4.0

5.0

5.6

Heating capacity

4.5

Power supply

1 phase 230V (220 – 240V) 50Hz

Running current

Power consumption

Power factor

(A)

(kW)

(%)

5.20 – 4.77

5.87 – 5.38

7.24 – 6.63

1.03

1.20

1.56

Cooling

EER

3.50

3.33

3.21

Energy efficiency class ∗

Running current

Power consumption

Power factor

Electrical

(A)

(kW)

(%)

4.94 – 4.53

1.00

5.62 – 5.15

6.68 – 6.12

1.44

characteristics

1.15

Heating

COP

4.00

3.91

3.89

Energy efficiency class ∗

Maximum current

(A)

15.00

13.60

Appearance

Main unit

Zinc hot dipping steel plate

Height

Width

Depth

(mm)

(kg)

210

845

Outer

dimension

645

Total weight

Heat exchanger

Finned tube

Centrifugal

Fan

Fan unit

Air filter

Standard air flow H/M/L

Motor

(m³/min.)

(W)

11.5 / 10.0 / 8.7

13.0 / 11.3 / 9.7

Standard filter attached (Long life filter)

RBC-AMT31E, AMT32E, AMS41E, AS21E2,

TCB-AX21E2

Controller (Sold separately)

Under air inlet

H/M/L

(dB•A)

(mm)

39 / 36 / 33

30 / 28 / 26

54 / 51 / 48

45 / 43 / 41

45 / 40 / 36

33 / 31 / 28

60 / 55 / 51

48 / 46 / 43

Sound

pressure level

Back air inlet

Under air inlet

Back air inlet

H/M/L

Sound

power level

H/M/L

Gas side

Liquid side

Drain port

12.7

6.4

Connecting pipe

(mm)

VP25

∗ : IEC standard

– 15 –

Indoor unit 1

Indoor unit 2

Outdoor unit

RAV-SM404SDT-E

RAV-SP804AT(Z)(ZG)-E

7.1

Model

Cooling capacity

Heating capacity

(kW)

8.0

Indoor unit

Power supply

1 phase 230V (220 – 240V) 50Hz

Running current

Power consumption

Power factor

EER

(A)

(kW)

(%)

10.36 – 9.49

2.21

Cooling

3.21

Energy efficiency class ∗

Running current

Power consumption

Power factor

Electrical

characteristics

(A)

(kW)

(%)

10.12 – 9.28

2.16

Heating

Fan

COP

3.70

Energy efficiency class ∗

Centrifugal

11.5 / 10.0 / 8.7

Fan unit

Standard air flow H/M/L

Motor

(m³/min.)

(W)

Under air inlet

Back air inlet

Under air inlet

Back air inlet

H/M/L

(dB•A)

39 / 36 / 33

30 / 28 / 26

54 / 51 / 48

45 / 43 / 41

Sound

pressure level

(dB•A)

Sound

power level

(dB•A)

Outdoor unit

Power supply

1 phase 230V (220 – 240V) 50Hz

Standard length

Min. length

(m)

7.5

Max. total length

Refrigerant

pipe

Refrigerant charging amount

(Charge-less up to 30m)

40g/m

(31m to 50m)

Outdoor lower

Outdoor higher

(m)

Height

difference

Fan

Propeller fan

Fan unit

Standard air flow volume

Motor

(m³/min.)

(W)

Main

(mm)

15.9

Gas side

Sub

(mm)

12.7

Connecting

pipe

Main

(mm)

9.5

Liquid side

Sub

(mm)

6.4

Sound pressure level

Sound power level

Cooling/Heating

(dB•A)

48 / 49

64 / 65

∗ : IEC standard

– 16 –

1-2. Outdoor Unit

Model name

Outdoor unit

RAV-SP 404AT(Z)(ZG)-E 454AT(Z)(ZG)-E 564AT(Z)(ZG)-E 804AT(Z)(ZG)-E

1 phase 230V (220 – 240V) 50Hz

(Power exclusive to outdoor is required.)

Power supply

Type

Hermetic compressor

Compressor Motor

Pole

(kW)

(kg)

1.1

2.0

Refrigerant charged

Refrigerant control

1.0

1.4

2.1

Pulse motor valve

Standard length

(m)

7.5

Min. length

Max. total length

Inter

connecting

pipe

Additional refrigerant charge

under long piping connector

20g/m

(21m to 30m)

20g/m

(21m to 30m)

20g/m

(21m to 50m)

40g/m

(31m to 50m)

Outdoor lower

Height

(m)

difference

Outdoor higher

Height

Width

Depth

(mm)

550

780

290

550

780

290

550

780

290

890

900

320

Outer

dimension

Appearance

Total weight

Silky shade (Muncel 1Y 8.5/0.5)

(kg)

Heat exchanger

Fan

Finned tube

Propeller fan

Fan unit

Standard air flow

Motor

(m³/min.)

(W)

Gas side

(mm)

12.7

6.4

12.7

6.4

12.7

6.4

15.9

9.5

Connecting

pipe

Liquid side

(mm)

Sound pressure level

Sound power level

Cooling/Heating (dB•A)

45 / 47

62 / 64

45 / 47

62 / 64

47 / 48

63 / 64

48 / 49

64 / 65

Outside air temperature, Cooling

Outside air temperature, Heating

(°C)

43 to – 15°C

15 to – 15°C

15 to – 20°C

– 17 –

1-3. Operation Characteristic Curve

• Operation characteristic curve <Super Digital Inverter>

RAV-SP564AT-E, RAV-SP564ATZ-E, RAV-SP564ATZG-E

RAV-SM5562BT, CCT, KRT,, MUT-E,

RAV-SM5564SDT-E

RAV-SM5562BT, CCT, KRT,, MUT-E,

RAV-SM5564SDT-E

RAV-SM5564UT-E

• Conditions

Indoor : DB20˚C

Outdoor : DB7˚C/WB6˚C

Air flow : High

Pipe length : 7.5m

230V

Indoor : DB27˚C/WB19˚C

Outdoor : DB35˚C

Air flow : High

Pipe length : 7.5m

230V

10 20 30 40 50 60 70 80 90 100 110 120

Compressor speed (rps)

RAV-SP804AT-E, RAV-SP804ATZ-E, RAV-SP804ATZG-E

RAV-SSM802BBT, CT,, KRT-E

RAV-SM802BT, CT, KRT-E

RAV-SM8804UT-E

• Conditions

Indoor : DB20˚C

Outdoor : DB7˚C/WB6˚C

Air flow : High

Pipe length : 7.5m

230V

Indoor : DB27˚C/WB19˚C

Outdoor : DB35˚C

Air flow : High

Pipe length : 7.5m

230V

10 20 30 40 50 60 70 80 90 100 110 120

Compressor speed (rps)

– 18 –

RAV-SP404AT-E, RAV-SP404ATZ-E, RAV-SP404ATZG-E

RAV-SP454AT-E, RAV-SP454ATZ-E, RAV-SP454ATZG-E

SP45

SP40

• Conditions

Indoor : DB27˚C/WB19˚C

Outdoor : DB35˚C

Air flow : High

Pipe length : 7.5m

230V

Indoor : DB20˚C

Outdoor : DB7˚C/WB6˚C

Air flow : High

Pipe length : 7.5m

230V

40 50 60 70 80 90 100

80 90 100

120

Compressor speed (rps)

• Capacity variation ratio according to temperature

RAV-SP404AT-E, RAV-SP404ATZ-E, RAV-SP404ATZG-E

RAV-SP454AT-E, RAV-SP454ATZ-E, RAV-SP454ATZG-E

RAV-SP564AT-E, RAV-SP564ATZ-E, RAV-SP564ATZG-E

RAV-SP804AT-E, RAV-SP804ATZ-E, RAV-SP804ATZG-E

105

120

110

100

• Conditions

Indoor : DB20˚C

Indoor : DB27˚C/WB19˚C

Indoor air flow : High

Pipe length : 7.5m

Indoor air flow : High

Pipe length : 7.5m

32 33 34 35 36 37 38 39 40 41 42 43

-20 -18 -16 -14 -12 -10 -8 -6 -4 -2

8 10

Outdoor temp. (˚C)

– 19 –

2. CONSTRUCTION VIEWS (EXTERNAL VIEWS)

2-1. Indoor Unit

RAV-SM404SDT-E, RAV-SM454SDT-E, RAV-SM564SDT-E

845

803 (inside)

Refrigerant piping

103

Air filter

805

910

163

Fresh air inlet

(knock-out hole)

Drain-up port

Hung-up plate

– 20 –

2-2. Outdoor Unit

RAV-SP404AT(Z)(ZG)-E, RAV-SP454AT(Z)(ZG)-E, RAV-SP564AT(Z)(ZG)-E

Drain hole

(2-Ø20 × 88 long hole)

Drain hole (Ø25)

600

2-Ø11-14 U-shape hole

(For Ø8-Ø10 anchor bolts)

A legs

108 125

Connecting pipe port

(Gas flare side: Ø12.7)

Connecting pipe port

(Liquid flare side: Ø6.4)

8-Ø6 hole

(For fixing outdoor unit)

B legs

2-Ø11 × L14 long hole

(For Ø8-Ø10 anchor bolts)

483

108

257

157

69.5

147

145

143

500

342

780

Earth

terminal

Charge port

Discharge guard

Discharge guide mounting hole

(4-Ø4.5 embossing)

Space required for service

600

2-Ø11 × 14 U-shape holes

(For Ø8–Ø10 anchor bolt)

Suction port

300

or more

150

or more

Discharge

port

(Minimum

distance up to wall)

500

or more

Discharge

port

2-Ø11 × 14 long hole

(For Ø8–Ø10 anchor bolt)

600

Ø11 × 14 U-shape holes

2-Ø6 hole

Product

external

line

R15

2-Ø6 hole

R15

600

Product

external line

Ø11 × 14 U-shape hole

Details of A legs

Details of B legs

– 21 –

Name

Note

380

Drain hole (Ø25 burring hole)

B legs

200

Refrigerant piping hole

Indoor/Outdoor unit

——

Air inlet

port

connecting wire inlet hole

Power supply inlet hole

Ø38 Kockout hole

Air inlet

port

Mounting bolt hole

(Ø12 × 17 long hole)

Air outlet

port

383

Mounting bolt hole

(Ø12 × 17 U-shape hole)

A legs

5-drain hole

(Ø20 × 88 burring hole)

Details of A legs

Details of B legs

150

600

900

550

320

Refrigerant pipe

connecting port

(Ø9.5 flare at liquid side)

Refrigerant pipe

connecting port

(Ø15.9 flare at gas side)

Mounting hole sold separately

(12 - Ø3 emboss)

178

327

178

518

178

135

151

400

Knockout for downward piping

Unit : mm

Z views

RAV-TWP30E2, RAV-TWP50E2 (SimultaneousTwin)

Inner diameter Ø C

Inner

diameter Ø D

Inner

diameter Ø D

Model (RBC-)

Liquid side

Ø9.5

Ø6.4

TWP30E2

Gas side

Liquid side

Gas side

Ø15.9 Ø12.7

Ø9.5 Ø9.5

Ø15.9 Ø15.9

TWP50E2

– 23 –

3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM

3-1. Indoor Unit

• Single type (Combination of 1 indoor unit and 1 outdoor unit)

(Indoor unit)

Distributor

(Strainer incorporated)

TCJ sensor

Strainer

Air heat

exchanger

TC sensor

Heating

Cooling

Refrigerant pipe

at liquid side

(Outer dia : ØB)

Refrigerant pipe

at gas side

(Outer dia : ØA)

To outdoor unit

Capillary tube specifications

Model

RAV-SM∗∗∗UT

Inner dia. × Length × Q’ty

Ø2 × 250 × 2, Ø2 × 350 × 1

Ø2 × 700 × 1

SM56 type

Dimension table

SM80 type

Ø2 × 250 × 3, Ø2 × 500 × 1

Outer diameter of refrigerant pipe

Indoor unit

Gas side ØA

12.7

Liquid side ØB

Model

RAV-SM∗∗∗SDT

Inner dia. × Length × Q’ty

SM40, 45, 56 type

SM80 type

6.4

9.5

15.9

SM40, 45, 56 type

Ø2 × 200 × 2, Ø2 × 350 × 1

• Twin type (Combination of 2 indoor units and 1 outdoor unit)

Heating

Cooling

(Indoor unit A)

(Indoor unit B)

Distributor

(Strainer incorporated)

TCJ sensor

Strainer

Air heat

exchanger

Air heat

exchanger

TC sensor

Refrigerant pipe

at liquid side

(Outer dia : ØA)

Refrigerant pipe

at gas side

(Outer dia : ØB)

Refrigerant pipe

at liquid side

(Outer dia : ØA)

Refrigerant pipe

at gas side

(Outer dia : ØB)

Branch pipe

Refrigerant pipe

at liquid side

(Outer dia : ØD)

Refrigerant pipe

at liquid side

(Outer dia : ØC)

To outdoor unit

Indoor unit

Branch pipe RBC-

SM40 × 2

TWP30E2

6.4

12.7

9.5

15.9

– 24 –

3-2. Outdoor Unit

RAV-SP404AT-E, RAV-SP404ATZ-E, RAV-SP404ATZG-E

RAV-SP454AT-E, RAV-SP454ATZ-E, RAV-SP454ATZG-E

Packed valve

Outer dia. ØB

Outer dia. ØA

PMV

(Pulse Motor Valve)

(CAM-B30YGTF-2)

TS sensor

TO sensor

2-step muffler

Ø19.05 × 200L

TD sensor

Strainer

4-way valve

(STF-0108Z)

sensor

Heat exchanger

Ø8 ripple, 2 rows,

14 steps

Muffler

Ø19 × L160

Distributor

FP1.3 flat fin

Rotary compressor

(DA150A1F-20F)

R410A 1.0 kg

Cooling

Heating

RAV-SP404AT-E, RAV-SP404ATZ-E, RAV-SP404ATZG-E

Pressure

(MPa) (kg/cm²g)

Pipe surface temperature (°C)

Indoor/Outdoor

temp. conditions

(DB/WB) (°C)

Compressor

Indoor heat Outdoor heat drive revolution Indoor

Discharge

Suction

exchanger

frequency

fan

(rps)

(TD)

(TS)

(TC)

(TE)

Indoor Outdoor

Standard

Cooling Overload

Low load

2.68 0.94 27.3

9.6

HIGH

LOW

HIGH

LOW

HIGH

27 / 19

32 / 24

18 / 15.5

20 / –

35 / –

43 / –

–5 / –

7 / 6

3.23 1.16 32.9 11.8

1.34 0.70 13.7

2.38 0.70 24.3

7.1

Standard

Heating Overload

Low load

3.39 1.03 34.6 10.5

1.95 0.26 19.9 2.7

–17

–19

30 / –

24 / 18

–15 / –

15 / –

∗ This compressor has 4-pole motor. The value when compressor frequency (Hz) is measured by a clamp

meter becomes 2 times of No. of compressor revolutions (rps).

RAV-SP454AT-E, RAV-SP454ATZ-E, RAV-SP454ATZG-E

Pressure

(MPa) (kg/cm²g)

Pipe surface temperature (°C)

Indoor/Outdoor

temp. conditions

(DB/WB) (°C)

Compressor

Indoor heat Outdoor heat drive revolution Indoor

Discharge

Suction

exchanger

frequency

fan

(rps)

(TD)

(TS)

(TC)

(TE)

Indoor Outdoor

Standard

Cooling Overload

Low load

2.81 0.89 28.7

9.1

HIGH

LOW

HIGH

LOW

HIGH

27 / 19

32 / 24

18 / 15.5

20 / –

35 / –

43 / –

–5 / –

7 / 6

3.24 1.16 33.0 11.8

1.34 0.70 13.7

2.53 0.68 25.8

7.1

6.9

Standard

Heating Overload

Low load

3.39 1.03 34.6 10.5

2.00 0.25 20.4 2.6

–17

–19

30 / –

24 / 18

–15 / –

15 / –

∗ This compressor has 4-pole motor. The value when compressor frequency (Hz) is measured by a clamp

meter becomes two times of No. of compressor revolutions (rps).

– 25 –

RAV-SP564AT-E, RAV-SP564ATZ-E, RAV-SP564ATZG-E

PMV

(Pulse Motor Valve)

(CAM-B30YGTF-2)

TO sensor

sensor

TE sensor

Muffler

Ø31.75 × 200L

4-way valve

(STF-0213Z)

Muffler

Ø19.05 × 160L

Heat exchanger

Ø8 ripple, 2 rows, 20 stages

FP1.3, flat fin

Strainer

Refrigerant pipe

Distributor

Accumulator

(1L)

at liquid side Ø6.4

Packed valve

Rotary compressor

(DA150A1F-21F)

Refrigerant pipe

at gas side Ø12.7

Packed valve

2-step muffler

Ø25 × 200L

In cooling operation

In heating operation

RAV-SP564AT-E, RAV-SP564ATZ-E, RAV-SP564ATZG-E

Pressure

(MPa) (kg/cm²g)

Pd Ps Pd Ps

Pipe surface temperature (°C)

Indoor/Outdoor

temp. conditions

(DB/WB) (°C)

Compressor

Indoor heat Outdoor heat drive revolution Indoor

Discharge

Suction

exchanger

frequency

fan

(rps)

(TD)

(TS)

(TC)

(TE)

Indoor Outdoor

Standard

Cooling Overload

Low load

2.87 1.00 29.3 10.2

3.57 1.10 36.4 11.2

HIGH

LOW

HIGH

LOW

HIGH

27 / 19

32 / 24

18 / 15.5

20 / –

35 / –

43 / –

–5 / –

7 / 6

1.71 0.76 17.4

2.26 0.68 23.1

7.8

6.9

Standard

Heating Overload

Low load

3.25 1.14 33.2 11.6

2.00 0.25 20.4 2.6

30 / –

24 / 18

–15 / –

–18

15 / –

– 26 –

RAV-SP804AT-E, RAV-SP804ATZ-E, RAV-SP804ATZG-E

TS sensor

PMV

(Pulse Motor Valve)

(CAM-B30YGTF-2)

TO sensor

TL sensor

Ø2 × Ø3 × 600L

sensor

Ø2 × Ø3 × 550L

Accumulator

Sub-ass’y

Strainer

Ø2 × Ø3 × 450L

TE sensor

4-way valve

(STF-0218G)

Ø2 × Ø3

× 450L

Muffler

Capillary

Heat exchanger

Ø8, 2 rows, 34 stages

FP1.45, flat fin

Refrigerant pipe

at liquid side Ø9.5

Packed valve

Ø25 × L180

Ø25 × L210

Accumulator

(1.8L)

Rotary compressor

(DA220A2F-22L)

Refrigerant pipe

at gas side Ø15.9

Ball valve

Strainer

In cooling operation

In heating operation

RAV-SP804AT-E, RAV-SP804ATZ-E, RAV-SP804ATZG-E

Pressure

(MPa) (kg/cm²g)

Pipe surface temperature (°C)

Indoor/Outdoor

temp. conditions

(DB/WB) (°C)

Compressor

Indoor heat Outdoor heat drive revolution Indoor

Discharge

Suction

exchanger

frequency

fan

(rps)

(TD)

(TS)

(TC)

(TE)

Indoor Outdoor

Standard

Cooling Overload

Low load

2.79 0.89 27.3

8.7

58.2

65.0

30.0

61.5

28.0

99.6

HIGH

LOW

HIGH

LOW

HIGH

27 / 19

32 / 24

35 / –

43 / –

3.53 1.07 34.6 10.5

1.71 0.72 16.8

2.65 0.68 26.0

7.1

6.7

18 / 15.5 –15 / –

Standard

20 / –

30 / –

15 / –

7 / 6

Heating Overload

Low load

3.20 1.11 31.4 10.9

2.33 0.21 22.8 2.1

–18

24 / 18

–20 / –

–20

– 27 –

4. FAN CHARACTERISTICS

4-1. Slim Duct (Filter Attached)

RAV-SM404SDT-E, RAV-SM454SDT-E

Standard air volume : 690m³/h

High (50Pa)

Upper limit of external

static pressure(50Pa)

High

(35Pa)

Lower limit of

external static

Upper limit of

external static

pressure(35Pa)

pressure (50Pa)

Lower limit of

external static

pressure (35Pa)

Low (50Pa)

Upper limit of

external static

pressure

(20Pa)

High

(20Pa)

Low (35Pa)

Low (20Pa)

Lower limit of

external static

pressure (20Pa)

Upper limit of

external static

pressure(10Pa)

High

(10Pa)

Low (10Pa)

Standard filte

pressure loss

400

500

600

700

800

Air volume (m³/h)

RAV-SM564SDT-E

Standard air volume : 780m³/h

High (50Pa)

Upper limit of external

static pressure(50Pa)

Lower limit of

external static

pressure (50Pa)

High

(35Pa)

Upper limit of

external static

pressure(35Pa)

Lower limit of

external static

pressure (35Pa)

Low (50Pa)

High

(20Pa)

Upper limit of

external static

pressure

(20Pa)

Low (35Pa)

Lower limit of

external static

pressure (20Pa)

Upper limit of

external static

pressure(10Pa)

High

(10Pa)

Low (20Pa)

Low (10Pa)

Standard filte

pressure loss

400

500

600

700

800

900

Air volume (m³/h)

– 28 –

5. WIRING DIAGRAM

5-1. Indoor Unit

5-1-1. Slim DuctType

RAV-SM404SDT-E, RAV-SM454SDT-E, RAV-SM564SDT-E

CN333

(WHI)

10 11 12 13 14 15 16 17 18 19 20

CN510

(WHI)

CN504 CN34

(WHI) (RED)

Motor drive

circuit

CN104

(YEL)

TCJ

CN334

(WHI)

CN102

(RED)

CN101

(BLK)

Fuse, F01

T6.3A, 250V~

Fuse, F02

T3.15A, 250V~

–

RED

WHI

BLK

DC20V

CN519

Power

supply

circuit

DC15V

(WHI)

DC12V

DC7V

CN67

(BLK)

CN508

(RED)

Control P.C. Board

for Indoor Unit

MCC-1570

CN80

P01

BLK

(GRN)

CN73

(RED)

(EXCT)

CN66

(WHI)

CN70

(WHI)

CN41

(BLU)

CN309

(YEL)

CN61 CN32

(YEL) (WHI)

CN60

(WHI)

CN50

(WHI)

CN20

(BLU)

(T10)

(Fan drive)

Indoor unit

earth screw

CN51

(RED)

BLK

1 2 3

A B

P.C. board

MCC-1440

Terminal

CN001

(WHI)

U3 U4

for central

Serial

signal

remote controller

Wired

Adapter for

Connection interface

(Option)

remote controller wireless remote controller

L N

Signal phase

220–240V~, 50Hz

Color

Identification

Outdoor unit

Symbol

Parts name

BLK : BLACK

BLU : BLUE

RED : RED

GRN : GREEN

WHI : WHITE

Fan Motor

Indoor temp. sensor

Temp. sensor

TC, TCJ

Outdoor unit

earth screw

Drain pump Motor

Float Switch

YEL : YELLOW

– 29 –

49C

ORN

2 2

1 1

CN500

CN300

Compressor

RED

WHI

BLK

P04

P05

P06

BLK

WHI

RED

1 1

2 2

3 3

2 2

1 1

Q200~205

IGBT

Q300~305

MOS-FET

P.C. Board

(MCC-5009)

R221

R321

Fan motor

P25

6 6

4 4

3 3

2 2

1 1

YEL

R220

R219

R320

R319

P24

P23

PMV

YEL

BRN

YEL

CN700

P22

P21

Pulse motor valve

F03

CAUTION : HIGH VOLTAGE

P20

P35

Varistor

L03

C13

Fuse

L01

3 3

T3.15A

AC250V

The high voltage circuit is

incorporated.

P34

DB01

CN603 1 1

Be careful to do the check service,

as the electric shock may be

caused in case of touching

parts on the

(Suction pipe

temp. sensor)

Surge

absorber

2 2

C12 C14

CN602 1 1

P.C. board by hand

Power

relay

(Outdoor

temp. sensor)

Varistor

P19

3 3

CN601 1 1

DB02

The 4-way valve coil is turned on

while the cooling operation

ORN

F01

Fuse

T25A

AC250V

P18

P11

Relay

(Discharge pipe

temp. sensor)

2 2

1 1

2 2

CN600 1 1

P08

Reactor

Q404

P02

WHI CN806

P03 P10

ORN BLK

(Condenser pipe

temp. sensor)

P33

P32

CN701

P30

1 2 3

1 2 3 4 5

For optional P.C. Board

CN605

BLK

P31

BLK

2 1

PUR

Coil for

4-WAY

VALVE

Reactor

1 2 3

NOTE

CM : Compressor

PMV : Pulse Motor Valve

FM : Fan Motor

SW802

GRN/YEL

Fuse 250V~

T6.3A

Reactor

MCC-1530

RED

TE : Heat Exchanger Temp. Sensor

TD : Discharge Temp. Sensor

TO : Outdoor Temp. Sensor

TS : Suction Temp. Sensor

IGBT : Insulated Gate Bipolar Transistor

DB : Rectifier

Sub P.C. Board

Color Identification

BLK : BLACK WHI : WHITE

BLU : BLUE

RED : RED

GRY : GRAY

PNK : PINK

GRN : GREEN

1 2 3 L N

BRN : BROWN

ORN : ORANGE

YEL : YELLOW

PUR : PURPLE

CT : Curreut Transformer

49C : Compressor Case Thermostat

To indoor

Power supply

220-240V~ 50Hz

RAV-SP804AT-E, RAV-SP804ATZ-E, RAV-SP804ATZG-E

<MCC-1571>

Reactor

(RED) (WHI) (BLK)

(GRY)

(WHI)

P04 P05

P06 P07

CN200 CN201 CN202

CN300

(WHI)

49C

SW804 SW801 SW800

CN609

(BLU)

CN610

(YEL)

Control P.C. Board

MCC-1571

SW803

CN604

(WHI)

L/F

CN603

(WHI)

Fuse, F01

T25A, 250V~

CN602

(YEL)

(BLK)

P09

SW802

Fuse, F03

T10A, 250V~

CN601

(WHI)

RY704

CN600

(WHI)

CN704

(BLU)

CN701

(WHI)

CN04

(WHI)

P01

P02

CN710

(WHI)

(RED)

(WHI)

PMW

20SF

Earth

screw

Earth

screw

1 2 3

Outdoor unit

Indoor unit

Symbol

PMV

Parts name

Compressor

Fan Motor

Power supply

220–240V~, 50Hz

Pulse Motor Valve

Earth

screw

Pipe temp. sensor (Discharge)

Pipe temp. sensor (Suction)

Heat exchanger sensor 1

Heat exchanger sensor 2

Outside temp. sensor

4-way valve coil

20SF

49C

Color

Identification

Compressor case thermostat

Relay

L/F

Line Filter

BLK

BLU

RED : RED

GRY : GRAY

WHI

YEL

: BLACK

: BLUE

indicates the terminal block.

Alphanumeric characters in the cycle indicate the terminal No.

2. The two-dot chain line indicates the wiring procured locally.

3. indicates the P.C. board.

: WHITE

: YELLOW

4. For the indoor unit circuit, refer to the wiring diagram of the indoor unit.

– 31 –

6. SPECIFICATIONS OF ELECTRICAL PARTS

6-1. Indoor Unit

RAV-SM404SDT-E, RAV-SM454SDT-E, RAV-SM564SDT-E

No.

Parts name

Fan motor

Type

SWF-280-60-3

Specifications

—

Drain pump motor

Float switch

TA sensor

MDP-1401

FS-0218-102

Lead wire length : 328mm

Ø6 size lead wire length : 1200 mm Vinyl tube (Black)

Ø6 size lead wire length : 1200 mm Vinyl tube (Red)

10 kΩ at 25°C

TC sensor

10 kΩ at 25°C

TCJ sensor

10 kΩ at 25°C

6-2. Outdoor Unit (Parts Ratings)

RAV-SP404AT-E, RAV-SP404ATZ-E, RAV-SP404ATZG-E

RAV-SP454AT-E, RAV-SP454ATZ-E, RAV-SP454ATZG-E

RAV-SP564AT-E, RAV-SP564ATZ-E, RAV-SP564ATZG-E

No.

Parts name

Type

Specifications

Fan motor

Compressor

Reactor

ICF-140-43-4R

Output (Rated) 43 W

40, 45 : DA150A1F-20F

40, 56 : DA150A1F-21F

3 phase, 4P, 1100 W

CH-57

10mH, 16A

Outdoor temp. sensor (To sensor)

Heat exchanger sensor (Te sensor)

Suction temp. sensor (Ts sensor)

Discharge temp. sensor (Td sensor)

Fuse (Switching power (Protect))

Fuse (Inverter, input (Current protect))

4-way valve solenoid coil

—

10 kΩ at 25°C

50 kΩ at 25°C

T3.15A, AC 250V

AC240V

—

STF-01AJ502E1

US-622

—

Compressor thermo. (Protection)

Coil (Pulse Motor Valve)

OFF: 125 ± 4°C, ON: 90 ± 5°C

—

CAM-MD12TF-12

RAV-SP804AT-E, RAV-SP804ATZ-E, RAV-SP804ATZG-E

No.

Parts name

Type

Specifications

—

Compressor

Outdoor fan motor

Reactor

DA220A2F-22L

ICF-280-A60-1

Output 60 W

CH-56

5.8 mH, 18.5 A

AC200 – 240 V

DC12 V

4-way valve coil

PMV coil

VHV-01AP552B1

CAM-MD12TF-15

P.C. board

MCC-1571

AC220 – 240 V

AC250 V, 25 A

AC250 V, 10 A

AC250 V, 3.15 A

10 kΩ at 25°C

50 kΩ at 25°C

10 kΩ at 25°C

OFF: 125 ± 4°C, ON: 90 ± 5°C

Fuse (Mounted on P.C. board)

—

Fuse (Mounted on P.C. board)

—

Outdoor temp. sensor (TO sensor)

Heat exchanger sensor (Te sensor)

Discharge temp. sensor (Td sensor)

Heat exchanger Temp sensor (Ts sensor)

Compressor thermo. (Protection)

—

US-622

– 32 –

7. REFRIGERANT R410A

This air conditioner adopts the new refrigerant HFC

(R410A) which does not damage the ozone layer.

6. When an air conditioning system charged with a

large volume of refrigerant is installed in a small

room, it is necessary to exercise care so that,

even when refrigerant leaks, its concentration

does not exceed the marginal level.

The working pressure of the new refrigerant R410A

is 1.6 times higher than conventional refrigerant

(R22). The refrigerating oil is also changed in

accordance with change of refrigerant, so be careful

that water, dust, and existing refrigerant or

refrigerating oil are not entered in the refrigerant

cycle of the air conditioner using the new refrigerant

during installation work or servicing time.

If the refrigerant gas leakage occurs and its

concentration exceeds the marginal level, an

oxygen starvation accident may result.

7. Be sure to carry out installation or removal

according to the installation manual.

The next section describes the precautions for air

conditioner using the new refrigerant.

Improper installation may cause refrigeration

trouble, water leakage, electric shock, fire, etc.

Conforming to contents of the next section together

with the general cautions included in this manual,

perform the correct and safe work.

8. Unauthorized modifications to the air conditioner

may be dangerous. If a breakdown occurs

please call a qualified air conditioner technician

or electrician.

Improper repair may result in water leakage,

electric shock and fire, etc.

7-1. Safety During Installation/Servicing

As R410A’s pressure is about 1.6 times higher than

that of R22, improper installation/servicing may

cause a serious trouble. By using tools and

materials exclusive for R410A, it is necessary to

carry out installation/servicing safely while taking

the following precautions into consideration.

7-2. Refrigerant Piping Installation

7-2-1. Piping Materials and Joints Used

For the refrigerant piping installation, copper pipes

and joints are mainly used.

1. Never use refrigerant other than R410A in an air

conditioner which is designed to operate with

R410A.

Copper pipes and joints suitable for the refrigerant

must be chosen and installed.

Furthermore, it is necessary to use clean copper

pipes and joints whose interior surfaces are less

affected by contaminants.

If other refrigerant than R410A is mixed,

pressure in the refrigeration cycle becomes

abnormally high, and it may cause personal

injury, etc. by a rupture.

1. Copper Pipes

2. Confirm the used refrigerant name, and use

tools and materials exclusive for the refrigerant

R410A.

It is necessary to use seamless copper pipes

which are made of either copper or copper alloy

and it is desirable that the amount of residual oil

is less than 40 mg/10 m.

The refrigerant name R410A is indicated on the

visible place of the outdoor unit of the air

conditioner using R410A as refrigerant.

Do not use copper pipes having a collapsed,

deformed or discolored portion (especially on

the interior surface).

To prevent mischarging, the diameter of the

service port differs from that of R22.

Otherwise, the expansion valve or capillary tube

may become blocked with contaminants.

3. If a refrigeration gas leakage occurs during

installation/servicing, be sure to ventilate fully.

As an air conditioner using R410A incurs pres-

sure higher than when using R22, it is necessary

to choose adequate materials.

If the refrigerant gas comes into contact with fire,

a poisonous gas may occur.

Thicknesses of copper pipes used with R410A

are as shown in Table 7-2-1. Never use copper

pipes thinner than 0.8mm even when it is avail-

able on the market.

4. When installing or removing an air conditioner,

do not allow air or moisture to remain in the

refrigeration cycle.

Otherwise, pressure in the refrigeration cycle

may become abnormally high so that a rupture

or personal injury may be caused.

NOTE:

5. After completion of installation work, check to

make sure that there is no refrigeration gas

leakage.

Refer to the “7-6. Instructions for Re-use Piping

of R22 or R407C”.

If the refrigerant gas leaks into the room, coming

into contact with fire in the fan-driven heater,

space heater, etc., a poisonous gas may occur.

– 33 –

Table 7-2-1 Thicknesses of annealed copper pipes

Thickness (mm)

Nominal diameter

Outer diameter (mm)

R410A

0.80

R22

0.80

1.00

1/4

3/8

1/2

5/8

6.4

9.5

0.80

12.7

15.9

0.80

1.00

1. Joints

For copper pipes, flare joints or socket joints are used. Prior to use, be sure to remove all contaminants.

a) Flare Joints

Flare joints used to connect the copper pipes cannot be used for pipings whose outer diameter exceeds

20 mm. In such a case, socket joints can be used.

Sizes of flare pipe ends, flare joint ends and flare nuts are as shown in Tables 7-2-3 to 7-2-5 below.

b) Socket Joints

Socket joints are such that they are brazed for connections, and used mainly for thick pipings whose

diameter is larger than 20 mm. Thicknesses of socket joints are as shown in Table 7-2-2.

Table 7-2-2 Minimum thicknesses of socket joints

Reference outer diameter of

copper pipe jointed (mm)

Minimum joint thickness

(mm)

Nominal diameter

1/4

3/8

1/2

5/8

6.4

9.5

0.50

0.60

0.70

0.80

12.7

15.9

7-2-2. Processing of Piping Materials

When performing the refrigerant piping installation, care should be taken to ensure that water or dust does not

enter the pipe interior, that no other oil other than lubricating oils used in the installed air conditioner is used,

and that refrigerant does not leak.

When using lubricating oils in the piping processing, use such lubricating oils whose water content has been

removed. When stored, be sure to seal the container with an airtight cap or any other cover.

1. Flare Processing Procedures and Precautions

a) Cutting the Pipe

By means of a pipe cutter, slowly cut the pipe so that it is not deformed.

b) Removing Burrs and Chips

If the flared section has chips or burrs, refrigerant leakage may occur.

Carefully remove all burrs and clean the cut surface before installation.

– 34 –

c) Insertion of Flare Nut

d) Flare Processing

Make certain that a clamp bar and copper pipe have been cleaned.

By means of the clamp bar, perform the flare processing correctly.

Use either a flare tool for R410A or conventional flare tool.

ØD

Flare processing dimensions differ according

to the type of flare tool.

When using a conventional flare tool, be sure

to secure “dimension A” by using a gauge for

size adjustment.

Fig. 7-2-1 Flare processing dimensions

Table 7-2-3 Dimensions related to flare processing for R410A / R22

A (mm)

Outer

diameter

(mm)

Nominal

diameter

Thickness

(mm)

Conventional flare tool

(R410A)

Conventional flare tool

(R22)

Flare tool for

R410A, R22

clutch type

Clutch type Wing nut type Clutch type Wing nut type

1/4

3/8

1/2

5/8

6.4

9.5

0.8

1.0

0 to 0.5

1.0 to 1.5

1.5 to 2.0

2.0 to 2.5

0.5 to 1.0

1.0 to 1.5

1.5 to 2.0

12.7

15.9

Table 7-2-4 Flare and flare nut dimensions for R410A

Dimension (mm)

Nominal

diameter

Outer diameter

Thickness

(mm)

Flare nut width

(mm)

1/4

3/8

1/2

5/8

6.4

9.5

0.8

1.0

9.1

9.2

6.5

13.2

16.6

19.7

13.5

16.0

19.0

9.7

12.7

15.9

12.9

16.0

Table 7-2-5 Flare and flare nut dimensions for R22

Dimension (mm)

Flare nut width

(mm)

Nominal

diameter

Outer diameter

Thickness

(mm)

1/4

3/8

1/2

5/8

3/4

6.4

9.5

0.8

1.0

9.1

9.2

6.5

13.0

16.2

19.4

23.3

13.5

16.0

19.0

24.0

9.7

12.7

15.9

19.0

12.9

16.0

19.2

– 35 –

Fig. 7-2-2 Relations between flare nut and flare seal surface

2. Flare Connecting Procedures and Precautions

a) Make sure that the flare and union portions do not have any scar or dust, etc.

b) Correctly align the processed flare surface with the union axis.

c) Tighten the flare with designated torque by means of a torque wrench.

The tightening torque for R410A is the same as that for conventional R22.

Incidentally, when the torque is weak, the gas leakage may occur.

When it is strong, the flare nut may crack and may be made non-removable.

When choosing the tightening torque, comply with values designated by manufacturers.

Table 7-2-6 shows reference values.

NOTE:

When applying oil to the flare surface, be sure to use oil designated by the manufacturer.

If any other oil is used, the lubricating oils may deteriorate and cause the compressor to burn out.

Table 7-2-6 Tightening torque of flare for R410A [Reference values]

Tightening torque of torque

wrenches available on the market

N•m (kgf•m)

Nominal

diameter

Outer diameter

(mm)

Tightening torque

N•m (kgf•m)

1/4

3/8

1/2

5/8

6.4

9.5

14 to 18 (1.4 to 1.8)

33 to 42 (3.3 to 4.2)

50 to 62 (5.0 to 6.2)

63 to 77 (6.3 to 7.7)

16 (1.6), 18 (1.8)

42 (4.2)

12.7

15.9

55 (5.5)

65 (6.5)

– 36 –

7-3. Tools

7-3-1. RequiredTools

Refer to the “4.Tools” (Page 8)

7-4. Recharging of Refrigerant

When it is necessary to recharge refrigerant, charge the specified amount of new refrigerant according to the

following steps.

Recover the refrigerant, and check no refrigerant

remains in the equipment.

When the compound gauge’s pointer has indicated

–0.1 Mpa (–76 cmHg), place the handle Low in the

fully closed position, and turn off the vacuum pump’s

power switch.

Connect the charge hose to packed valve service

port at the outdoor unit’s gas side.

Keep the status as it is for 1 to 2 minutes, and ensure

that the compound gauge’s pointer does not return.

Connect the charge hose of the vacuum pump

adapter.

Set the refrigerant cylinder to the electronic balance,

connect the connecting hose to the cylinder and the

connecting port of the electronic balance, and charge

liquid refrigerant.

Open fully both packed valves at liquid and gas

sides.

Place the handle of the gauge manifold Low in the

fully opened position, and turn on the vacuum pump’s

power switch. Then, evacuating the refrigerant in the

cycle.

(For refrigerant charging, see the figure below.)

1) Never charge refrigerant exceeding the specified amount.

2) If the specified amount of refrigerant cannot be charged, charge refrigerant bit by bit in COOL mode.

3) Do not carry out additional charging.

When additional charging is carried out if refrigerant leaks, the refrigerant composition changes in the

refrigeration cycle, that is characteristics of the air conditioner changes, refrigerant exceeding the

specified amount is charged, and working pressure in the refrigeration cycle becomes abnormally high

pressure, and may cause a rupture or personal injury.

(INDOOR unit)

(Liquid side)

(OUTDOOR unit)

Opened

Closed

(Gas side)

Refrigerant cylinder

(With siphon pipe)

Check valve

Open/Close valve

for charging

Service port

Electronic balance for refrigerant charging

Fig. 7-4-1 Configuration of refrigerant charging

– 37 –

1) Be sure to make setting so that liquid can be charged.

2) When using a cylinder equipped with a siphon, liquid can be charged without turning it upside down.

It is necessary for charging refrigerant under condition of liquid because R410A is mixed type of refrigerant.

Accordingly, when charging refrigerant from the refrigerant cylinder to the equipment, charge it turning the

cylinder upside down if cylinder is not equipped with siphon.

[ Cylinder with siphon ]

[ Cylinder without siphon ]

Gauge manifold

OUTDOOR unit

c y l i n d e r

a n t i g e r R e f r

Refrigerant

cylinder

Electronic

balance

Electronic

balance

Siphon

R410A refrigerant is HFC mixed refrigerant.

Therefore, if it is charged with gas, the

composition of the charged refrigerant changes

and the characteristics of the equipment varies.

Fig. 7-4-2

7-5. Brazing of Pipes

7-5-1. Materials for Brazing

1. Silver brazing filler

1) Phosphor bronze brazing filler tends to react

with sulfur and produce a fragile compound

water solution, which may cause a gas

leakage. Therefore, use any other type of

brazing filler at a hot spring resort, etc., and

coat the surface with a paint.

Silver brazing filler is an alloy mainly composed

of silver and copper.

It is used to join iron, copper or copper alloy, and

is relatively expensive though it excels in solder-

ability.

2) When performing brazing again at time of

servicing, use the same type of brazing filler.

2. Phosphor bronze brazing filler

7-5-2. Flux

Phosphor bronze brazing filler is generally used

to join copper or copper alloy.

1. Reason why flux is necessary

• By removing the oxide film and any foreign

matter on the metal surface, it assists the flow

of brazing filler.

3. Low temperature brazing filler

Low temperature brazing filler is generally called

solder, and is an alloy of tin and lead.

• In the brazing process, it prevents the metal

surface from being oxidized.

Since it is weak in adhesive strength, do not use

it for refrigerant pipes.

• By reducing the brazing filler's surface tension,

the brazing filler adheres better to the treated

metal.

– 38 –

2. Characteristics required for flux

7-5-3. Brazing

• Activated temperature of flux coincides with

the brazing temperature.

As brazing work requires sophisticated techniques,

experiences based upon a theoretical knowledge, it

must be performed by a person qualified.

• Due to a wide effective temperature range, flux

is hard to carbonize.

In order to prevent the oxide film from occurring in

the pipe interior during brazing, it is effective to

proceed with brazing while letting dry Nitrogen gas

flow.

• It is easy to remove slag after brazing.

• The corrosive action to the treated metal and

brazing filler is minimum.

• It excels in coating performance and is

harmless to the human body.

Never use gas other than Nitrogen gas.

1. Brazing method to prevent oxidation

As the flux works in a complicated manner as

described above, it is necessary to select an

adequate type of flux according to the type and

shape of treated metal, type of brazing filler and

brazing method, etc.

1) Attach a reducing valve and a flow-meter to

the Nitrogen gas cylinder.

2) Use a copper pipe to direct the piping

material, and attach a flow-meter to the

cylinder.

3. Types of flux

• Noncorrosive flux

3) Apply a seal onto the clearance between the

piping material and inserted copper pipe for

Nitrogen in order to prevent backflow of the

Nitrogen gas.

Generally, it is a compound of borax and boric

acid.

It is effective in case where the brazing

temperature is higher than 800°C.

4) When the Nitrogen gas is flowing, be sure to

keep the piping end open.

• Activated flux

Most of fluxes generally used for silver brazing

are this type.

5) Adjust the flow rate of Nitrogen gas so that it

is lower than 0.05 m³/Hr or 0.02 MPa

It features an increased oxide film removing

capability due to the addition of compounds

such as potassium fluoride, potassium chloride

and sodium fluoride to the borax-boric acid

compound.

(0.2kgf/cm²) by means of the reducing valve.

6) After performing the steps above, keep the

Nitrogen gas flowing until the pipe cools down

to a certain extent (temperature at which

pipes are touchable with hands).

7) Remove the flux completely after brazing.

4. Piping materials for brazing and used

brazing filler/flux

Piping

material

Used brazing

filler

Used

flux

Flow meter

Copper - Copper Phosphor copper Do not use

Copper - Iron

Iron - Iron

Silver

Paste flux

Vapor flux

Stop valve

Nitrogen gas

cylinder

From Nitrogen cylinder

1) Do not enter flux into the refrigeration cycle.

2) When chlorine contained in the flux remains

within the pipe, the lubricating oil deteriorates.

Pipe

Nitrogen

gas

Therefore, use a flux which does not contain

chlorine.

Rubber plug

3) When adding water to the flux, use water

which does not contain chlorine

(e.g. distilled water or ion-exchange water).

4) Remove the flux after brazing.

Fig. 7-5-1 Prevention of oxidation during brazing

– 39 –

7-6. Instructions for Re-use Piping of R22 or R407C

6. Check the oil when the existing air conditioner was

Instruction of Works:

removed after refrigerant had been recovered.

The existing R22 and R407C piping can be

reused for our digital inverter R410A products

installations.

In this case, if the oil is judged as clearly different

compared with normal oil

• The refrigerator oil is copper rust green :

There is possibility that moisture is mixed with the

oil and rust generates inside of the pipe.

NOTE)

Confirmation of existence of scratch or dent of the

former pipes to be applied and also confirmation of

reliability of the pipe strength are conventionally

referred to the local site.

• There is discolored oil, a large quantity of the

remains, or bad smell.

• A large quantity of sparkle remained wear-out

powder is observed in the refrigerator oil.

If the definite conditions can be cleared,

it is possible to update the existing R22 and

R407C pipes to those for R410A models.

7. The air conditioner which compressor was ex-

changed due to a faulty compressor.

When the discolored oil, a large quantity of the

remains, mixture of foreign matter, or a large

quantity of sparkle remained wear-out powder is

observed, the cause of trouble will occur.

7-6-1. Basic Conditions Needed to Reuse the

Existing Pipe

Check and observe three conditions of the refrigerant

piping works.

8. Installation and removal of the air conditioner are

repeated with temporary installation by lease and

etc.

1. Dry

(There is no moisture inside of the pipes.)

2. Clean (There is no dust inside of the pipes.)

3. Tight (There is no refrigerant leak.)

9. In case that type of the refrigerator oil of the

existing air conditioner is other than the following oil

(Mineral oil), Suniso, Freol-S, MS (Synthetic oil),

alkyl benzene (HAB, Barrel-freeze), ester series,

PVE only of ether series.

7-6-2. Restricted Items to Use the Existing Pipes

In the following cases, the existing pipes cannot be

reused as they are. Clean the existing pipes or

exchange them with new pipes.

• Winding-insulation of the compressor may

become inferior.

1. When a scratch or dent is heavy, be sure to use the

new pipes for the works.

NOTE)

2. When the thickness of the existing pipe is thinner

than the specified “Pipe diameter and thickness” be

sure to use the new pipes for the works.

The above descriptions are results of confirmation by

our company and they are views on our air

conditioners, but they do not guarantee the use of the

existing pipes of the air conditioner that adopted

R410A in other companies.

• The operating pressure of R410A is high

(1.6 times of R22 and R407C). If there is a scratch

or dent on the pipe or thinner pipe is used, the

pressure strength is poor and may cause break-

age of the pipe at the worst.

7-6-3. Branching Pipe for Simultaneous

Operation System

• In the concurrent twin system, when TOSHIBA-

specified branching pipe is used, it can be reused.

∗ Pipe diameter and thickness (mm)

Branching pipe model name: RBC-TWP30E-2.

Pipe outer diameter Ø6.4 Ø9.5 Ø12.7 Ø15.9 Ø19.0

On the existing air conditioner for simultaneous

operation system (twin system), there is a case of

using branch pipe that has insufficient compressive

strength.

R410A

0.8

1.0

Thickness

R22

(R407C)

In this case please change it to the branch pipe for

R410A.

• In case that the pipe diameter is Ø12.7 mm or less

and the thickness is less than 0.7 mm, be sure to

use the new pipes for works.

7-6-4. Curing of Pipes

When removing and opening the indoor unit or outdoor

unit for a long time, cure the pipes as follows:

3. The pipes are left as coming out or gas leaks.

(Poor refrigerant)

• There is possibility that rain water or air including

moisture enters in the pipe.

• Otherwise rust may generate when moisture or

foreign matter due to dewing enters in the pipes.

4. Refrigerant recovery is impossible.

(Refrigerant recovery by the pump-down operation

on the existing air conditioner)

• The rust cannot be removed by cleaning, and a new

piping work is necessary.

• There is possibility that a large quantity of poor

oil or moisture remains inside of the pipe.

Place position

Outdoors

Term

Curing manner

1 month or more

Less than 1 month

Every time

Pinching

5. A dryer on the market is attached to the existing pipes.

• There is possibility that copper green rust

generated.

Pinching or taping

Indoors

– 40 –

7-6-5. Final Installation Checks

Is there no scratch or dent on the existing pipes?

Existing pipe: NO * Use a new pipes.

Is it possible to operate the existing air conditioner?

YES

∗ After the existing air conditioner operated in cooling mode

for approx. 30 minutes or longer*, recover the refrigerant.

∗ For cooling the pipes and recovering of oil

• Refrigerant recovery: Pump down method

Nitrogen gas pressure 0.5 Mpa

∗ Remove the existing air conditioner from the piping and

carry out flashing (nitrogen pressure 0.5 Mpa) to remove

the remains inside of the pipe.

Note] In case of twin, also be sure to flash the

branching pipe.

(If there is discharge of remains,

it is judged that there is a large quantity of remains.)

Was not largely discolored oil or

a large quantity of remains discharged?

(When the oil deteriorates, the color of the

oil changes to muddy and black color.)

Clean the pipes or use the new pipes.

If you are in trouble of

pipe cleaning, please contact us.

YES

ꢀ Connect the indoor/outdoor units to the existing pipe.

• Use a flare nut attached to the main unit for the

indoor/outdoor units.

(Do not use the flare nut of the existing pipe.)

• Re-machine the flare machining size to size for R410A.

Piping necessary to change the flare nut/

machining size due to pipe compression.

ꢀ In case that the gas pipe Ø19 mm is used for the

outdoor unit of SM803 (3 HP) or higher:

(Gas pipe size of our R410A model 3 is Ø15.9 mm)

1) Flare nut width: H

(mm)

Ø12.7 Ø15.9 Ø19.0

→ Turn the existing pipe switch on the cycle control

Copper pipe

outer dia.

Ø6.4

Ø9.5

P.C board of the outdoor unit to ON side.

At shipment from factory OFF → ON for existing pipe

(Refer to the table below.) (Be sure to set the contents

in the table below in order to restrict the refrigerating

cycle pressure of the equipment in the pipe standard.)

For R410A

Same

For R22

Same as above

as above

Existing pipe SW

Switch

2) Flare machining size: A

(mm)

Copper pipe

outer dia.

Ø6.4

Ø9.5

13.2

13.0

Ø12.7 Ø15.9 Ø19.0

3 HP

Bit 3 of SW802 → ON

9.1

9.0

16.6

16.2

19.7

19.4

24.0

23.3

For R410A

For R22

Becomes large a little for R410A

Do not apply the refrigerator oil to the flare surface.

∗ (Airtight test), Vacuum dry, Refrigerant charge,

Gas leak check

Trial run

– 41 –

RAV-SP804AT-E

7-6-6. Handling of Existing Pipe

• To use an existing Ø19.1 mm pipe, set bit 3 of

SW802 (switch for existing pipe) on the P.C. board

of the outdoor unit to ON.

When using the existing pipe, carefully check it for

the following:

• Wall thickness (within the specified range)

• Scratches and dents

In this case, the heating performance may be

reduced depending on the outside air temperature

and room temperature.

• Water, oil, dirt, or dust in the pipe

• Flare looseness and leakage from welds

• Deterioration of copper pipe and heat insulator

SW802

Cautions for using existing pipe

When shipped from factory

When using existing pipe

• Do not reuse the flare to prevent gas leak.

Replace it with the supplied flare nut and then

process it to a flare.

• Blow nitrogen gas or use an appropriate means to

keep the inside of the pipe clean.

If discolored oil or much residue is discharged,

wash the pipe.

• Check welds, if any, on the pipe for gas leak.

When the pipe corresponds to any of the follow-

ing, do not use it. Install a new pipe instead.

• The pipe has been open (disconnected from

indoor unit or outdoor unit) for a long period.

• The pipe has been connected to an outdoor unit

that does not use refrigerant R22, R410A or

R407C.

• The existing pipe must have a wall thickness equal

to or larger than the following thickness.

Reference outside diameter

(mm)

Wall thickness

(mm)

Ø9.5

Ø15.9

Ø19.1

0.8

1.0

• Never use any pipe with a wall thickness less than

these thicknesses due to insufficient pressure

capacity.

– 42 –

8. INDOOR CONTROL CIRCUIT (Slim DuctType)

8-1. Indoor Controller Block Diagram

8-1-1. Connection of Wired Remote Controller

Wired remote controller (Max. 2 units)

Weekly timer

Display LCD

Display LED

Function setup

Key switch

Display LCD

LCD driver

MCU

Function setup

Key switch

CN2

CN1

MCU

DC5V

Remote controller

communication circuit

Power circuit

∗3

Power

circuit

Secondary

battery

Indoor unit

#1 (Master)

(Follower)

Indoor control P.C. board (MCC-1570)

DC20V

Remote controller

EEPROM

TA sensor

TC sensor

TCJ sensor

Float input

communication circuit

DC5V

DC12V

Humidifier output

Same as left

Drain

pump

∗2

Driver

MCU

Auto grille

panel

Outside

output

Indoor

MCU

fan motor

Serial send/

receive circuit

Run

Warning

Defrost

Thermo. ON

COOL

Fan motor

control circuit

synchronous

signal input circuit

HEAT

FAN

Power circuit

DC280V

Outdoor unit

* Case of TCC-LINK adapter

Case of TCC-LINK adapter

(Option)

Outdoor unit

Up to 8 units are connectable. ∗1

TCC-LINK

adapter P.C. board

(MCC-1440)

∗1 However Max.7 units are connectable in case of mounting network adapter

TCC-LINK

Central controller

(Option)

TCC-LINK

communication circuit

when two wired remote controllers are connected.

∗2 The network adapter is mounted to only 1 unit.

TCC-LINK adapter is mounted to the master unit.

∗3 Connection of the weekly timer to the sub remote controller is unavailable.

– 43 –

8-1-2. Connection of Wireless Remote Controller Kit

Indoor unit

#1 (Master)

Wireless remote controller kit

Receiver P.C. board (MCC-1504)

Display LED

Receive circuit

Buzzer

Function setup SW

Grille up/down SW

MCU

DC5V

Power

circuit

Remote controller

communication circuit

Temporary

operation SW

(Follower)

Indoor control P.C. board (MCC-1570)

DC20V

Remote controller

EEPROM

TA sensor

TC sensor

TCJ sensor

Float input

communication circuit

DC5V

DC12V

Humidifier output

Same as left

Drain

pump

∗2

Driver

MCU

Auto grille

panel

Outside

output

Indoor

MCU

fan motor

Serial send/

receive circuit

Run

Warning

Defrost

Thermo. ON

COOL

Fan motor

control circuit

synchronous

signal input circuit

HEAT

FAN

Power circuit

DC280V

Outdoor unit

* Case of TCC-LINK adapter

Case of TCC-LINK adapter

(Option)

Outdoor unit

TCC-LINK

adapter P.C. board

(MCC-1440)

Up to 8 units are connectable. ∗1

TCC-LINK

Central controller

(Option)

TCC-LINK

communication circuit

∗1 However Max.7 units are connectable in case of mounting network adapter

when two wireless remote controller kit are connected.

∗2 The network adapter is mounted to only 1 unit.

TCC-LINK adapter is mounted to the master unit.

– 44 –

8-1-3. Connection of Both Wired Remote Controller and Wireless Remote Controller Kit

Indoor unit

#1 (Master)

Master wired remote controller

Wireless remote controller kit

(Max. 2 units)

Weekly timer

Receiver P.C. board

(MCC-1504)

Display LED

Display

LCD

Function

setup

Display

LCD

driver

Receive

circuit

Function setup SW

Grille up/down SW

Display

LED

Key

MCU

switch

Function

setup

MCU

CN2

CN1

Buzzer

MCU

Key

switch

DC5V

Remote controller

communication circuit

Power

circuit

DC5V

∗3

Power

circuit

Remote controller

communication circuit

Temporary

operation SW

Power

circuit

Secondary

battery

(Follower)

Indoor control P.C. board (MCC-1570)

DC20V

Remote controller

communication circuit

EEPROM

TA sensor

TC sensor

DC5V

DC12V

Humidifier output

Same as left

TCJ sensor

Float input

Drain

pump

∗2

Driver

MCU

Auto grille

panel

Outside

output

Indoor

MCU

fan motor

Serial send/

receive circuit

Run

Warning

Defrost

Thermo. ON

COOL

Fan motor

control circuit

synchronous

signal input circuit

HEAT

FAN

Power circuit

DC280V

Outdoor unit

* Case of TCC-LINK adapter

Case of TCC-LINK adapter

(Option)

Outdoor unit

TCC-LINK

adapter P.C. board

(MCC-1440)

Up to 8 units are connectable. ∗1

∗1 However Max.7 units are connectable in case of mounting network adapter.

TCC-LINK

Central controller

(Option)

TCC-LINK

communication circuit

∗2 The network adapter is mounted to only 1 unit.

TCC-LINK adapter is mounted to the master unit.

∗3 Connection of the weekly timer to the sub remote controller is unavailable.

∗4 In the left system, set the wireless remote controller side as the follower

remote controller when using the wired remote controller as the master

remote controller.

– 45 –

8-2. Indoor Controls (Slim DuctType)

No.

Item

Outline of specifications

1) Distinction of outdoor unit

Remarks

When power

supply is reset

When the power supply is reset, the outdoors are distin-

guished and the control is selected according to the

distinguished result.

2) Setting of indoor fan speed and existence of air direction

adjustment

Based on EEPROM data, select setting of the indoor fan

speed and the existence of air direction adjustment.

Air speed (rpm)/

Air direction adjustment

Operation

mode selection

1) Based on the operation mode selecting command from the

remote controller, the operation mode is selected.

Remote controller

Control outline

command

STOP

FAN

Air conditioner stops.

Fan operation

COOL

DRY

Cooling operation

Dry operation

HEAT

AUTO

Heating operation

Ta: Room temp.

Ts: Setup temp.

To: Outside temp.

• COOL/HEAT operation mode is

automatically selected by Ta, Ts

and To for operation.

• The operation is performed as

shown in the following figure

according to Ta value at the first

time only. (In the range of Ts +

α –1 < Ta < Ts + α + 1, Cooling

thermo. OFF (Fan)/Setup air

volume operation continues.)

Cooling

operation

+1.0

Cooling thermo. OFF (Fan)

• Setup air volume

(˚C)

Ts + α

-1.0

Heating

operation

^•α is corrected according to the outside temperature.

Outside temp.

No To

Correction value (a)

–1K

k = deg

To ≥ 24°C

24 > To ≥ 18°C

To < 18°C

To error

+1K

Room temp.

control

1) Adjustment range: Remote controller setup temperature (°C)

COOL/DRY

18 to 29

HEAT

AUTO

18 to 29

17 to 27

Wired type

18 to 29

16 to 30

Wireless type

18 to 30

– 46 –

No.

Item

Outline of specifications

Remarks

Shift of suction

temperature in heating

operation

Room temp.

control

(Continued)

2) Using the Item code 06, the setup temperature in heating

operation can be corrected.

Setup data

Setup temp. correction

+0°C

+2°C

+4°C

+6°C

Setting at shipment

Setup data

Automatic

capacity control

1) Based on the difference between Ta and Ts, the operation

frequency is instructed to the outdoor unit.

2) Cooling operation

(GA control)

Every 90 seconds, the room temperature difference

between temperature detected by Ta and Ts and the

varied room temperature value are calculated to obtain

the correction value of the frequency command and then

the present frequency command is corrected.

Ta (n) – Ts (n) : Room temp. difference

: Counts of detection

Ta (n-1) – Ts (n) : Varied room temp. value

n – 1 Counts of detection of 90 seconds before

3) Heating operation

Every 1 minute (60 sec.), the room temperature differ-

ence between temperature detected by Ta and Ts and the

varied room temperature value are calculated to obtain

the correction value of the frequency command and then

the present frequency command is corrected.

Ts (n) – Ta (n)

: Room temp. difference

: Counts of detection

Ta (n) – Ta (n – 1): Varied room temp. value

n – 1

: Counts of detection of 1 minute before

4) Dry operation

The frequency correction control is same as those of the

cooling operation.

However the maximum frequency is limited to approxi-

mately “S6”.

Note) When LOW is set up, the maximum frequency is

limited to approximately “SB”.

Automatic

cooling/heating

control

1) The judgment of selecting COOL/HEAT is carried out as

shown below. When +1.5 exceeds against Tsh 10 minutes

and after thermo.-OFF, heating operation (Thermo. OFF)

exchanges to cooling operation. Description in the

Tsc: Setup temp. in

cooling operation

Tsh: Setup temp. in

heating operation

+ temp. correction of

room temp. control

parentheses shows an example of cooling ON/OFF.

(˚C)

Cooling

+1.5

(Cooling ON)

Tsc

Tsh

(Cooling OFF)

-1.5

Heating

When –1.5 lowers against Tsc 10 minutes and after

thermo. OFF, cooling operation (Thermo. OFF) exchanges

to heating operation.

2) For the automatic capacity control after judgment of

cooling/heating, see Item 4.

3) For temperature correction of room temp. control in

automatic heating, see Item 3.

– 47 –

No.

Item

Outline of specifications

Remarks

Air speed selection 1) Operation with (HH), (H), (L) or [AUTO] mode is carried

out by the command from the remote controller.

HH > H+ > H > L+ >

L > UL

2) When the air speed mode [AUTO] is selected, the air

speed varies by the difference between Ta and Ts.

<COOL>

Ta (˚C)

+3.0

+2.5

+2.0

+1.5

+1.0

+0.5

Tsc

(HH)

H+ (HH)

H (HH)

L+ (H+)

L (H)

–0.5

L (L+)

• Controlling operation in case when thermo of remote

controller works is same as a case when thermo of the

body works.

• If the air speed has been changed once, it is not changed

for 3 minutes. However when the air volume is exchanged,

the air speed changes.

• When cooling operation has started, select a downward

slope for the air speed, that is, the high position.

• If the temperature is just on the difference boundary, the

air speed does not change.

• Mode in the parentheses indicates one in automatic

cooling operation.

<HEAT>

Ta (˚C)

L (L+)

(–0.5) –1.0

L+ (H)

(0) Tsh

H (H+)

(+0.5) +1.0

H+

(HH)

(+1.0) +2.0

(HH)

(+1.5) +3.0

(+2.0) +4.0

Value in the parentheses indicates one when thermostat of

the remote controller works.

Value without parentheses indicates one when thermostat of

the body works.

• If the air speed has been changed once, it is not changed

for 1 minute. However when the air speed I exchanged, the

air speed changes.

• When heating operation has started, select an upward

slope for the air speed, that is, the high position.

• If the temperature is just on the difference boundary, the

air speed does not change.

• Mode in the parentheses indicates one in automatic

heating operation.

Tc: Indoor heat

exchanger sensor

temperature

• In Tc ≥ 60°C, the air speed increases by 1 step.

– 48 –

No.

Item

Outline of specifications

Remarks

Air speed

Slim Duct Type

selection

(Continued):

In case of

Selection of high static

pressure type

Standard

Type 1

Type 3

Type 6

Item code

[5d]

Item code:

Slim Duct Type

SW501 (1)/(2)

OFF/OFF

ON/OFF

OFF/ON

ON/ON

[5d] or selection of high

static pressure on P.C.

board SW501

Tap

HEAT COOL HEAT COOL HEAT COOL HEAT COOL

H+

L+

H+

L+

H+

L+

Slim Duct Type

SM40

SM45

SM56

Tap

Revolution speed (rpm)

1260

1180

1120

1040

1020

990

1260

1180

1120

1040

1020

990

1320

1220

1180

1040

990

960

950

910

870

990

840

880

790

820

550

3) In heating operation, the mode changes to [UL] if

thermostat is turned off.

4) If Ta ≥ 25°C when heating operation has started and when

defrost operation has been cleared, the air conditioner

operates with (H) mode or higher mode for 1 minute after

Tc entered in E zone of cool air discharge preventive

control (Item 7).

– 49 –

No.

Item

Outline of specifications

Remarks

Cool air discharge

preventive control

1) In heating operation, the indoor fan is controlled

In D and E zones, the

based on the detected temperature of Tc sensor or priority is given to air

Tcj sensor. As shown below, the upper limit of the

revolution frequency is restricted.

volume selection setup

of remote controller.

However B zone is assumed as C zone for

6 minutes and after when the compressor activated.

In A zone while thermo

is ON, [PRE-HEAT

(Heating ready)] is

displayed.

In defrost operation, the control value of Tc is

shifted by 6°C.

(˚C)

Tcj

E zone

D zone

OFF

C zone

B zone

A zone

Freeze preventive control 1) The cooling operation (including Dry operation) is

Tcj:

(Low temperature release)

performed as follows based on the detected

temperature of Tc sensor or Tcj sensor.

Indoor heat exchanger

sensor temperature

When [J] zone is detected for 6 minutes

(Following figure), the commanded frequency is

decreased from the real operation frequency.

After then the commanded frequency changes

every 30 seconds while operation is performed in

[J] zone.

In [K] zone, time counting is interrupted and the

operation is held.

When [ I ] zone is detected, the timer is cleared

and the operation returns to the normal operation.

If the commanded frequency becomes S0

because the operation continues in [J] zone, the

return temperature A is raised from 5°C to 12°C

until [ I ] zone is detected and the indoor fan

operates with [L] mode.

(˚C)

In heating operation, the freeze-preventive control

works if 4-way valve is not exchanged and the

following conditions are satisfied.

(However the temperature for J zone dashing

control is changed from 2°C to –5°C.)

Tcn:

Tc temperature when 5

minutes elapsed after

activation

Tc (n – 1):

Tc temperature at start

time

• When

is established 5 minutes after

‚

activation.

Tcn ≤ Tc (n – 1) – 5

Tcn < Tc (n – 1) – 1 and Tcn ≤ Ta < 5°C

‚

– 50 –

No.

Item

Outline of specifications

Remarks

High-temp.

release control

1) The heating operation is performed as follows based on the

detected temperature of Tc sensor or Tcj sensor.

• When [M] zone is detected, the commanded frequency is

decreased from the real operation frequency. After then

the commanded frequency changes every 30 seconds

while operation is performed in [M] zone.

However this control is

ignored in case of the

follower unit of the twin.

• In [N] zone, the commanded frequency is held.

• When [L] zone is detected, the commanded frequency is

returned to the original value by approx. 6Hz every

60 seconds.

Tc(˚C)

Setup at shipment

Tcj

Control temp. (°C)

56 (54)

52 (52)

NOTE:

Same status as that

when “thermostat-OFF”

(status that the air

When the operation has started or when Tc or Tcj < 30°C at

start of the operation or after operation start, temperature is

controlled between values in parentheses of A and B.

conditioner enters in the

room temp. monitor

mode when the

temperature reached the

setup temperature on

the remote controller)

10 Drain pump

control

1) In cooling operation (including Dry operation), the drain

pump is usually operated.

2) If the float switch works while drain pump drives, the

compressor stops, the drain pump continues the operation,

and a check code is output.

Check code [P10]

3) If the float switch works while drain pump stops, the

compressor stops and the drain pump operates. If the float

switch keeps operating for approx. 4 minutes, a check code

is output.

11 After-heat

elimination

When heating operation stops, in some cases, the indoor fan

operates with (L) for approx. 30 seconds.

is displayed.

– 51 –

No.

Item

Outline of specifications

Remarks

In the group

operation, use this

control by

12 HA control

1) This control is connected to TV control or remote start/

stop I/F, etc, and start/stop are available by HA signal

input from the remote position.

connecting to either

master or follower

indoor unit.

2) This control outputs start/stop status to HA output

terminal.

3) I/O specifications conform to JEMA regulations.

4) This control outputs [Operation OFF (STOP) signal] to HA

output terminal while self-cleaning works. However selection

of [Operation ON (Operating) signal] is possible by changing

[0000 (At shipment)] of Item code (DN) [CC] to [0001].

In this case, if HA is input during self-clean operation during

operation of the air conditioner, the self-clean operation is not

performed. (Unit stops.)

13 Frequency fixed

operation (Test run)

Command frequency

is approximately [S7]

1) When pushing [CHK] button for 4 seconds or more,

[TEST] is displayed on the display screen and the mode

enters in Test run mode.

2) Push [ON/OFF] button.

3) Using [MODE] button, set the mode to [COOL] or [HEAT].

• Do not use other mode than [COOL]/[HEAT] mode.

• During test run operation, the temperature cannot be

adjusted.

• An error is detected as usual.

• A frequency fixed operation is performed.

4) After the test run, push [ON/OFF] button to stop the

operation. (Display in the display part is same as the

procedure in Item 1.)

5) Push [CHK] button to clear the test run mode.

([TEST] display in the display part disappears and the

status returns to the normal stop status.)

14 Filter sign display

(Except wireless type)

1) The operation time of the indoor fan is calculated, the filter

reset signal is sent to the remote controller when the

specified time (2500H) has passed, and it is displayed on

LCD.

[FILTER

] goes on.

∗ It is provided on the

separately sold type

TCB-AX21E2.

2) When the filter reset signal has been received from the

remote controller, time of the calculation timer is cleared.

In this case, the measurement time is reset if the

specified time has passed, and display on LCD

disappears.

– 52 –

No.

Item

Outline of specifications

Remarks

15 Central control mode 1) Setting at the centerl controller side enables to select the

selection

contents which can be operated on the remote controller

at indoor unit side.

2) Setup contents

• 64 line central controller (TCB-SC642TLE2)

Display at remote

controller side

(No display)

[Individual]: Operated on the remote controller

(Priority to second pushing)

[Central 1]: ON/OFF operation cannot be operated on

the remote controller.

[Central

] goes on

[Central 2]: ON/OFF, mode selection, temp. setup

operations cannot be operated on the

remote controller.

[Central

] goes on

[Central 3]: Mode selection and temp. setup operations

cannot be operated on the remote controller.

[Central

] goes on

[Central 4]: Mode selection cannot be operated on the

remote controller.

∗ In case of the wireless type, the display lamp does not

change but the contents are same. If operating an item

which is prohibited by the central control mode from the

remote controller, it is notified with the receive sound,

Pi, Pi, Pi, Pi, Pi (5 times).

16 Energy-saving

control

1) Selecting [AUTO] mode enables an energy-saving to be

operated.

(In case of connect-

ing SDI outdoor unit)

2) The setup temperature is shifted (corrected) in the range

not to lose the comfort ability according to input values of

various sensors.

3) Data (Input value room temp. Ta, Outside temp. To, Air

volume, Indoor heat exchanger sensor temp. Tc) for

20 minutes are taken the average to calculate correction

value of the setup temperature.

4) The setup temperature is shifted every 20 minutes, and

the shifted range is as follows.

In cooling time: +1.5 to – 1.0K

In heating time: –1.5 to +1.0K

17 Max. frequency cut

control

1) This control is operated by selecting [AUTO] operation mode.

2) COOL operation mode:

It is controlled according to the

following figure if To < 28°C.

3) HEAT operation mode:

It is controlled according to the

following figure if To > 15°C.

Max. frequency is

restricted to approximately

the rated heating frequency

Ta(˚C)

Tsh

Normal control

–3

Tsc

–4

Normal control

Max. frequency is

restricted to approximately

the rated cooling frequency

– 53 –

No.

Item

Outline of specifications

Remarks

18 DC motor

1) When the fan operation has started, positioning of the stator

and the rotor are performed.

(Moves slightly with tap sound)

2) The motor operates according to the command from the

indoor controller.

Notes)

• When the fan rotates while the air conditioner stops due to

entering of outside air, etc, the air conditioner may operate while

the fan motor stops.

Check code [P12]

• When a fan lock is found, the air conditioner stops, and an error

is displayed.

SAVE

19 Save operation 1) Turn on

2) During operation of save operation,

remote controller.

button on the remote controller.

Operation and display

also are unavailable

on the wired remote

controller RBC-

SAVE

lights on the wired

3) During save operation, the current release control is performed

AMT31E and before.

with the restriction ratio set in EEPROM on the outdoor unit.

SAVE

Carry out setting

operation during stop

of the unit; otherwise

the unit stops

4) The restriction ratio can be set by keeping

button

pushed for 4 seconds or more on the remote controller.

5) When validating the save operation, the next operation starts

with save operation valid because contents are held even

when operation stops, operation mode changes or power

supply is reset.

operation.

For the setup opera-

tion, refer to “How to

set up contents of

save operation” of

Installation Manual.

6) The restriction ratio can be set by changing the setup data of

Item code (DN) [C2] in the range of 50 to 100%

(every 1%, Setting at shipment: 75%).

20 8°C heating/

Frost protective

operation

1) This functional is intended for the cold latitudes and performs

objective heating operation (8°C heating operation).

2) This function is valid only for combination with the outdoor

units (Super Digital Inverter (SDI) 4-series outdoor units).

In a group connection,

if there is even one

combination with other

unit, “This function is

not provided.” is

3) Using the indoor DN code [D1] (1 bit), Valid/Invalid of this

function is set up at the customer’s side.

∗ The setup by DN code is Invalid [0]/Valid [1] and Invalid [0]

has been set at the shipment.

displayed.

4) This operation is the heating operation which sets 8°C as the

setup temperature of the target.

5) This function starts operation by pushing temperature button

The setup tempera-

ture jumps from [18]

to [8].

during heating operation; besides by pushing

button

for 4 seconds or more after temperature reached the minimum

set temperature.

6) To stop/release this operation, select and execute one from

the following operations.

Push

button: Heating operation (18°C setting) continues.

‚

Push [START/STOP] button: Air conditioner stops.

(Heating 18°C operation at the next start)

MODE

Push

: Other operation mode is selected and the

operation continues.

7) As the setup temperature is 8°C and the human heating is not

targeted, the cold air discharge preventive control (Item 7) is

made invalid to suppress the intermittent operation.

8) The settings of the air direction and air volume are

changeable during this operation.

9) The indoor fan stops to protect the compressor for 2 minutes

after start of heating operation (Thermo-ON) by this function.

– 54 –

Function

Connector No.

Pin No.

Specifications

Remarks

Humidifier output is ON when heating operation is performed, when thermostat is on, when the fan is on.

∗ The setting of Humidifier provided + Drain pump ON is performed by short-circuit of CN70 or from the

remote controller. (DN [40] = 0001)

DC12V

Humidifier output (∗)

CN66

Output (Open collector)

DC12V

Setting at shipment: Interlock of ON by indoor unit operation, with OFF by stop operation

∗ The single operation setting by FAN button on the remote controller is performed on the remote

controller (DN [31] = 0000 → 0001)

Intilation output

CN32

CN61

Output (Open collector)

ON/OFF input

HA ON/OFF input (J01:YES/NO=Pulse (At shipment from factory) /Static input selection)

Remote controller prohibited input

Operation output (Open collector)

DC12V

Permission/Prohibition of remote controller operation stop is performed by input.

Operation ON (Answer back of HA)

Warning output (Open collector)

DC12V

Warning output ON

Defrost output (Open collector)

ON when outdoor unit is defrosted

Thermostat ON output (Open collector) ON when real thermostat is on. (Compressor ON)

Option output

CN60

Cooling output (Open collector)

Heating output (Open collector)

Fan output (Open collector)

DC12V

ON when operation mode is cooling system (COOL, DRY, Cooling/Heating automatic cooling)

ON when operation mode is heating system (HEAT, Cooling/Heating automatic heating)

ON when indoor fan is on. (When air cleaner is used) OFF while clean operation is performed.

Outside error input

CN80

CN20

Generate the warning code “L30” (continuously for 1 minute) and stop the operation forcibly.

Outside error input

DC12V

Panel operation input

Panel up output (Open collector)

Panel down output (Open collector)

The grille is controlled according to up/down operation from the remote controller.

∗ Setting of automatic up/down grille provided is performed on the remote controller.

(DN [30] = 0000 → 0001)

AUTO up/down grille

(∗)

Selection of option error input (Protective operation display of device attached to outside) or Humidifier

setting input (Vaporizing + Drain pump ON)

Humidifier is set at shipment from factory.

FILTER

Option error /

Humidifier setting (∗)

CN70

∗ Setting of option error input is performed on the remote controller. (DN [2A] = 0002 → 0001)

CHK

Operation check

This check is used to check indoor operation. (Performs operation of indoor fan “H”, Louver horizontal

and Drain pump ON without communication with outdoor and remote controller)

CN71

CN72

CN73

DISP

Exhibition mode

Communication is available by indoor unit and remote controller only.

Indoor unit forced thermostat OFF operation

Demand input

EXCT

Demand

∗ This option is not provided to oversea models.

Serial send LED

D15 (Green)

Sub bus communication LED

D504 (Green)

Micro computer operation LED

D501 (Red)

Optional power supply

CN309 (Yellow), AC230V

Serial receive LED

D14 (Orange)

DC fan return

CN334 (White)

HA (T10)

CN61 (Yellow), DC12V

High ceiling select switch

SW501

DC fan output

CN333 (White)

Remote controller

CN41 (Blue), DC20V

Louver

CN510 (White),

DC12V

Indoor/Outdoor inter-unit cable

CN67 (Black), AC230V

Optional output

CN60 (White), DC12

Humidifier

CN66 (White), DC12V

Fan drive

CN32 (White), DC12V

TC sensor

CN101 (Black), DC5V

TA sensor

CN104 (Yellow), DC5V

TCJ sensor

CN102 (Red), DC5V

Filter

CN70 (White), DC5V

Float switch

CN34 (Red), DC12V

Drain pump

CN504 (White), DC12V

EXCT

CN73 (Red), DC5V

Remote controller power supply LED

D403 (Red)

Automatic up/down grille

CN20 (Blue), DC12V

Main bus communication LED

D503 (Yellow)

CHK

Outside error input

CN80 (Green), DC12V

CN71 (White), DC5V

TCC-LINK adapter

DISP

CN50 (White), DC12V, 5V CN72 (White), DC5V

9. OUTDOOR CONTROL CIRCUIT

9-1. Outdoor Controls

1. PMV (Pulse Motor Valve) control

1) PMV is controlled between (SP56: 20 to 500, SP80: 30 to 500) pulsed during operation.

2) In cooling operation, PMV is usually controlled with the temperature difference between TS sensor and

TC sensor aiming (SP56: 2 to 5K, SP80: 1 to 4K) as the target value.

3) In heating operation, PMV is usually controlled with the temperature difference between TS sensor and

TE sensor aiming (SP56: –2 to 4K, SP80: 2 to 4K) as the target value.

4) When the cycle excessively heated in both cooling and heating operation, PMV is controlled by TD sensor.

The target value is 101°C for both cooling and heating operations in SP56, and 91°C for cooling opera-

tion and 96°C for heating operation respectively in SP80.

REQUIREMENT

A sensor trouble may cause a liquid back-flow or abnormal overheat resulting in excessive shortening of the

compressor life.

In a case of trouble on the compressor, be sure to check there is no error in the resistance value or the

refrigerating cycle of each sensor after repair and then start the operation.

2. Discharge temperature release control

1) When the discharge temperature did not fall or the discharge temperature rapidly went up by PMV

control, this control lowers the operation frequency.

It subdivides the frequency control up to 0.6Hz to stabilize the cycle.

2) When the discharge temperature detected an abnormal stop zone, the compressor stops and then

restarts after 2 minutes 30 seconds.

The error counting is cleared when the operation continued for A minutes. If the error is detected by

B times without clearing, the error is determined and restarting is not performed.

∗ The cause is considered as excessively little amount of refrigerant, PMV error or clogging of the cycle.

3) For displayed contents of error, confirm on the check code list.

TD [˚C]

Abnormal stop

(117) 111

Frequency normal down

(107) 109

Frequency slow down

(105) 106

Frequency hold

(102) 103

Frequency slow up

(Up to command)

(93) 96

SP56

SP80

As command is

SP56 in the parentheses

– 57 –

3. Outdoor fan control

Revolution frequency allocation of fan taps [rpm]

200

250

230

300

260

400

300

480

340

500

380

520

420

560

460

640

520

670

570

700

600

750

630

800

670

880

710

980

740

SP56

SP80

3-1) Cooling fan control

<SP56>

<SP80>

The outdoor fan is controlled by TE sensor, TO

sensor and the operation frequency. It is controlled

by every 1 tap of DC fan control (15 taps).

The outdoor fan is controlled by TL sensor, TO

sensor and the operation frequency.

The outdoor fan is controlled by every 1 tap of DC

fan control (15 taps).

Only for 60 seconds after start-up of operation, it is

fixed by the maximum fan tap corresponded to the

zone in the following table, and then the fan is

controlled by temperature of TE sensor.

‚

Only for 60 seconds after the operation has

started, the maximum fan tap corresponding to the

zone in the following table is fixed and then the fan

is controlled by temperature of TL sensor.

‚

When temperature of TD sensor became high

sufficiently, it is controlled so that the fan revolution

frequency will become higher ignoring TE sensor

temperature.

TE [˚C]

+1 tap / 20 sec

Up to the maximum

revolution frequency of each zone

∗ Operation with W1 in case of fan-OFF

TL [˚C]

WF tap

Revolution frequency hold

+1 tap / 20 sec

Up to the maximum

revolution frequency of each zone

–1 tap / 20 sec

Down to the minimum

revolution frequency of each zone

Revolution frequency hold

TD [˚C]

–1 tap / 20 sec

Down to the minimum

Operation

revolution frequency of each zone

with WF

Operation with

the maximum tap

of each zone

Normal fan control

by TE sensor

20 Hz

or lower

20Hz

to 45Hz

45Hz

or higher

20 Hz

or lower

20Hz

to 45Hz

45Hz

or higher

Temp. range

Min. Max. Min. Max. Min. Max.

W6 WB W7 WE W9 WF

W5 WA W6 WD W8 WE

W3 W7 W4 W9 W6 WB

Min. Max. Min. Max. Min. Max.

W6 WC W8 WE WA WE

W5 WB W7 WD W9 WD

W4 W8 W6 WA W8 WC

W3 W6 W5 W8 W7 WA

W2 W4 W4 W6 W5 W8

W2 W3 W3 W5 W4 W6

OFF OFF OFF W2 OFF W3

OFF WC OFF WE OFF WE

38°C ≤ TO

28°C ≤ TO < 38°C

29°C ≤ TO < 38°C

15°C ≤ TO < 29°C

5°C ≤ TO < 15°C

0°C ≤ TO < 5°C

–4°C ≤ TO < 0°C

TO < –4°C

15°C ≤ TO < 28°C

5.5°C ≤ TO < 15°C W2 W5 W3 W7 W5 W9

0°C ≤ TO < 5.5°C

–5°C ≤ TO < 0°C

TO < –5°C

W1 W3 W2 W5 W3 W7

W1 W2 W1 W3 W2 W4

OFF OFF OFF OFF W1 W3

W1 WB W1 WE W1 WF

TO error

– 58 –

3-2) Heating fan control

The outdoor fan is controlled by TE sensor, TO sensor and the operation frequency.

(Control from minimum W1 to maximum (according to the following table))

For 3 minutes after the operation has started, the maximum fan tap corresponding to the zone in

the following table is fixed and then the fan is controlled by temperature of TE sensor.

‚

When TE ≥ 24°C continues for 5 minutes, the

compressor stops.

TE [˚C]

It is the same status as the normal THERMO

OFF without error display.

–2 taps / 20 sec. (Down to W1)

Stop timer count

The compressor restarts after approx. 2 minutes

30 seconds and this intermittent operation is not

abnormal.

–2 taps / 20 sec. (Down to W1)

–1 tap / 20 sec. (Down to W1)

Revolution frequency hold

In case that the status in item

generates

„

frequently, stain on filter of the suction part of

the indoor unit is considered.

Clean the filter and then restart the operation.

+1 tap / 20 sec

(Up to the maximum tap of each zone)

<SP56>

<SP80>

20 Hz

or lower

20Hz

to 45Hz

45Hz

or higher

20 Hz

or lower

20Hz

to 45Hz

45Hz

or higher

Temp. range

Max.

10°C ≤ TO

5.5°C ≤ TO < 10°C

–5°C ≤ TO < 5.5°C

TO < –5°C

10°C ≤ TO

5°C ≤ TO < 10°C

–3°C ≤ TO < 5°C

–10°C ≤ TO < –3°C

TO < –10°C

TO error

4. Coil heating control

1) This control function heats the compressor by turning on the stopped compressor instead of a case heater.

It purposes to prevent stagnation of the refrigerant inside of the compressor.

2) As usual, turn on power of the compressor for the specified time before a test run after installation;

otherwise a trouble of the compressor may be caused.

As same as a test run, it is recommended to turn on power of the compressor beforehand when starting

operation after power of the compressor has been interrupted and left as it is for a long time.

3) SP80 judgment for electricity is performed by TD and TO sensors.

If TO sensor is defective, a backup control is automatically performed by TE sensor.

For a case of defective TO sensor, judge it with outdoor LED display.

Using TD sensor and TE sensor, SP56 judges the power-on.

4) For every model, the power is turned off when TD is 30°C or more.

– 59 –

<SP56>

• Power-ON condition TD < 30˚C

TE [˚C]

(Normal time)

–1

–6

–7

No power

REQUIREMENT

Continuous power-ON

Output [10W or equivalent]

In some cases, the sound of power-ON may be

heard. It is not abnormal.

Continuous power-ON

Output [20W or equivalent]

<SP80>

• Power-ON condition TD < 30˚C

(Normal time)

(In defective TO sensor)

18˚C

20˚C

No power

15˚C

10˚C

8˚C

18˚C

Intermittent power-ON

10 minutes: ON /

Intermittent power-ON

10 minutes: ON /

12˚C

5 minutes: OFF

Output [40W or equivalent]

10˚C

Continuous power-ON

Output [40W or equivalent]

Continuous power-ON

Output [40W or equivalent]

REQUIREMENT

While heating the coil, the power sound may be heard. However it is not a trouble.

5. Short intermittent operation preventive control

1) For 3 to 10 minutes after operation start, in some cases, the compressor does not stop to protect the

compressor even if receiving the THERMO OFF signal from indoor.

However it is not abnormal status. (The operation continuance differs according to the operation status.)

2) When the operation stops by the remote controller, the operation does not continue.

6. Current release control

No. of revolutions of the compressor is controlled by AC current value detected by the outdoor P.C. board so

that the input current of the inverter does not exceed the specified value.

Current [A]

Frequency down

SP56

COOL

10.80

SP80

COOL

16.0

Model

HEAT

Hold

I1 value [A]

13.05

20.0

1–1.0

Normal operation

– 60 –

7. Current release value shift control

1) This control purposes to prevent troubles of

the electronic parts such as the compressor

driving elements and the compressor during

cooling operation.

Current release control value (I1)

[A]

Temperature range

SP56

7.80

9.30

10.80

7.80

SP80

2) The current release control value (I1) is

selected from the following table according to

TO sensor value.

50°C ≤ TO

45°C ≤ TO < 50°C

39°C ≤ TO < 45°C

TO < 39°C

9.5

13.0

16.0

9.5

TO error

8. Over-current protective control

1) When the over-current protective circuit detected an abnormal current, stop the compressor.

2) The compressor restarts after 2 minutes 30 seconds as setting [1] as an error count.

3) When the error count [8] was found, determine an error and restart operation is not performed.

4) For the error display contents, confirm on the check code list.

9. High-pressure release control <SP80 only>

1) The operation frequency is controlled to restrain abnormal rising of high pressure by TL sensor in

cooling operation and TC sensor in heating operation.

2) When TL sensor in cooling operation or TC sensor in heating operation detects abnormal temperature of

the stop zone, stop the compressor and the error count becomes +1.

3) When the compressor stopped with 2), the operation restarts from the point of the normal operation

zone (e point or lower) where it returned after 2 minutes 30 seconds.

4) The error count when the compressor stopped with 2) is cleared after the operation continued for

10 minutes.

If the error count becomes [10] without clearing, the error is determined and reactivation is not performed.

5) For the error display contents, confirm on the check code list.

HEAT TC / COOL TL

HEAT

COOL

[˚C]

Abnormal stop

Frequency normal down

Frequency slow down

Frequency hold

61°C

56°C

54°C

52°C

48°C

63°C

62°C

60°C

58°C

54°C

Frequency slow up (Up to command)

As command is

– 61 –

10. Defrost control

1) In heating operation, defrost operation is performed when TE sensor satisfies any condition in A zone to D

zone.

2) During defrosting operation, it finishes if TE sensor continued 12°C or continued 5°C £ TE < 12°C for

80 seconds. The defrost operation also finishes when it continued for 15 minutes even if TE sensor tem-

perature was 5°C or lower.

3) After defrost operation was reset, the compressor stopped for approx. 40 seconds and then the heating

operation starts.

Start of heating operation

TE [˚C]

[min.]

10 15

29 35

–4

–6

A zone

–10

B zone

D zone

–25

C zone

∗

∗ The minimum TE value and To value between 10 and 15 minutes after heating operation has started are

stored in memory as TE0 and To0, respectively.

In normal To

In abnormal To

When status (TE0 – TE) – (To0 – To) ≥ 3°C

When status (TE0 – TE) ≥ 3°C

A zone

B zone

continued for 20 seconds

When status (TE0 – TE) – (To0 – To) ≥ 2.5°C

When status (TE0 – TE) ≥ 2.5°C

continued for 20 seconds

C zone

D zone

When the status (TE ≤ –26°C) continued for 20 seconds

When the status (TE ≤ –10°C) continued for 20 seconds

– 62 –

1) In heating operation, defrost operation is performed when TE sensor satisfies any condition in A zone to D

zone.

2) During defrosting operation, it finishes if TE sensor continued 12°C or higher for 3 seconds or continued

7°C ≤ TE < 12°C for 1 minute. The defrost operation also finishes when it continued for 10 minutes even if

TE sensor temperature was 7°C or lower.

3) After defrost operation was reset, the compressor stopped for approx. 40 seconds and then the heating

operation starts.

Start of heating operation

TE [˚C]

[min.]

–2

–5

A zone

–10

D zone

B zone

–25

C zone

∗

∗ The minimum TE value and To value between 10 and 15 minutes after heating operation has started are

stored in memory as TE0 and To0, respectively.

In normal To

In abnormal To

When status (TE0 – TE) – (To0 – To) ≥ 3°C

When status (TE0 – TE) ≥ 3°C

A zone

B zone

continued for 20 seconds

When status (TE0 – TE) – (To0 – To) ≥ 2°C

When status (TE0 – TE) ≥ 2°C

continued for 20 seconds

C zone

D zone

When the status (TE ≤ –25°C) continued for 20 seconds

When compressor operation status of TE < –2°C is calculated as d minutes

4) The time of above d can be changed by

exchanging jumper [J805] and [J806] of the

outdoor control P.C. board.

J805

J806

150 minutes

Setting at shipment

(Setting at shipment: 150 minutes)

90 minutes

60 minutes

30 minutes

: Short circuit, : Open

11. Compressor protective control <SP80 only>

1) This control purposes to raise the operation frequency until 45Hz for 2 minutes in order to protect the

compressor (Prevention of oil accumulation in the refrigerating cycle) when the status that the operation

frequency is 45Hz or less has continued for 10 hours was calculated. The operation frequency follows

the normal indoor command after controlling.

2) Although the compressor may stop by THERMO-OFF control when the room temperature varies and

then attains the set temperature by this control, it is not abnormal.

3) During this control works, if stopping the operation by the remote controller, the operation does not continue.

– 63 –

1. Pulse Motor Valve (PMV) control

1) For PMV with 50 to 500 pulses during operation, respectively.

2) In cooling operation, PMV is controlled with the temperature difference between TS sensor and TC sensor.

3) In heating operation, PMV is controlled with the temperature difference between TS sensor and TE sensor.

4) For the temperature difference in items 2) and 3), 1 to 5K is aimed as the target in both cooling and

heating operations.

5) When the cycle excessively rose in both cooling and heating operations, PMV is controlled by TD sensor.

The aimed value is usually 106°C in both cooling and heating operations.

REQUIREMENT

A sensor trouble may cause a liquid back-flow or abnormal overheat resulting in excessive shortening of the

compressor life. In a case of trouble on the compressor, be sure to check there is no error in the resistance

value an the refrigerating cycle of each sensor after repair and then start the operation.

2. Discharge temperature release control

1) This function controls the operation

frequency, that is, lowers the operation

TD [˚C]

frequency when the discharge temperature

has not lower or the discharge temperature

has rapidly risen during PMV control.

Error stop

(“P03” display with 8 times error count)

It subdivides the frequency control up to a

unit of 0.6 Hz to stabilize the cycle.

2) When the discharge temperature is detected

in an abnormal stop zone, the unit stops the

compressor and restarts after 2 minutes

30 seconds.

117

Frequency down

107

103

100

Frequency slow-down

Frequency holding

The error counter is cleared when it has

continued the operation for 6 minutes.

Frequency slow-up

(Up to command)

If the abnormal stop zone has been detected

by 8 times without clearing of counter, an

error “P03” is displayed.

∗ The cause is considered as excessively

little amount of refrigerant, defective PMV,

or clogging of cycle.

As command is

3. Current release control

Current [A]

The output frequency and the output voltage are

controlled by AC current value detected by T02

on the outdoor P.C. board so that input current of

the inverter does not exceed the specified value.

Frequency down

Hold

SP40, SP45

Hold

Normal operation

I1–0.5

Objective model

COOL

HEAT

I1 value [A]

10.13

10.50

– 64 –

4. Outdoor fan control

Allocations of fan tap revolutions [rpm]

WB WC WD

SP40, SP45

200 300 350 410 480 500 560 640 670 700 750 800 800 840 840

1) Cooling fan control

The outdoor fan is controlled by TE, TD, and TO sensors and also revolution frequency of the operation.

The outdoor is controlled by every 1 tap of DC fan control (15 taps).

Only during 60 seconds after the operation has started, the fan is fixed with the maximum fan tap

which corresponds to the zone in the following table.

‚

After then the fan is controlled by TE sensor temperature.

Considering a case that TE sensor has come out of the holder, the fan is controlled so that revolution

frequency of the fan increases regardless of TE if temperature of TD sensor has risen.

Operation with WE

TE [˚C]

TD [˚C]

“WF”

+1 tap/20 seconds

rpm hold

Operation with

maximum tap in

each zone

–1 tap/20 seconds

Usual fan control

f < 34.1Hz

Min.

34.1Hz ≤ f < 58.6Hz

58.6Hz ≤ f

Temp. range

Max.

Min.

OFF

Max.

Min.

Max.

38°C ≤ TO

32 ≤ TO < 38°C

15 ≤ TO < 32°C

5 ≤ TO < 15°C

1 ≤ TO < 5°C

–5 ≤ TO < 1°C

TO < –5°C

OFF

TO error

– 65 –

2) Heating fan control

The outdoor fan is controlled by TE sensor, TO sensor and the operation frequency.

(From Min. W1 to Max. are controlled according to the following table.)

During 3 minutes after start-up, the fan is fixed

with the maximum fan tap corresponding to zone

‚

in the following table.

TE [˚C]

After then the fan is controlled by temperature of

TE sensor.

–2 tap/20 seconds

STOP timer count

If status, TE > 24°C continues for 5 minutes, the

–2 tap/20 seconds

–1 tap/20 seconds

rpm hold

operation stops.

This status is same to the usual Thermo-OFF

which has no alarm display, and the fan restarts

after 2 minutes and 30 seconds.

This intermittent operation is not abnormal.

When the above status

occurs frequently, it is

+1 tap/20 seconds

„

‚

considered that the filter of suction part of the

indoor unit is stain.

Clean the filter and then restart the operation.

Temp. range

10°C ≤ TO

f < 38.9Hz

38.9Hz ≤ f < 67.6Hz

67.6Hz ≤ f

5 ≤ TO < 10°C

–5 ≤ TO < 5°C

TO < –5°C

Maximum

TO error

5. Coil heating control

1) This control function heats the compressor by turning on the stopped compressor instead of a case heater.

It purposes to prevent slackness of the refrigerant inside of the compressor.

2) As usual, turn on power of the compressor for the specified time before a test run after installation,

otherwise a trouble of the compressor may be caused.

As same as a test run, it is recommended to turn on power of the compressor beforehand when starting

operation after power of the compressor has been interrupted for a long time.

3) Coil heating is controlled by TD and TE sensor.

4) The power is turned off when TD is 30°C or more.

TE [˚C]

No power-ON

SP40, SP45

–1

Continuous ON (L)

–6

–7

10W and equivalent

30W and equivalent

Continuous ON (H)

– 66 –

6. Defrost control

In heating operation, defrost operation is performed when TE sensor temperature satisfies any condition

in A zone to C zone.

The defrost operation is immediately finished if TE sensor temperature has become 12°C or more, or it

also is finished when condition of 5°C < TE < 12°C has continued for 80 seconds.

‚

The defrost operation is also finished when defrost operation has continued for 15 minutes even if TE

sensor temperature has become 5°C or lower.

After defrost operation has finished, the compressor and the outdoor fan start heating operation after

stopped for approx. 40 seconds.

Start of heating operation

[min.]

TE [˚C]

–4

A zone

–6

–10

D zone

B zone

C zone

–25

∗ The minimum TE value between 10 and 15 minutes after heating operation has started is stored in memory

as TE0.

A zone

B zone

C zone

Defrost operation is performed in this zone when TE0-TE > 2.5 continued for 20 seconds.

Defrost operation is performed in this zone when TE0-TE > 3 continued for 20 seconds.

Defrost operation is performed when this zone continued for 20 seconds.

– 67 –

F01, 02, 25A fuse

Lead wire for grounding

(Black)

DB02:

High power factor diode

Q404:

High power factor circuit IGBT

C12, 13, 14

electrrolytiic capaacitor

F03: 3.15A fuse

DB01:

Single-phase rectifier diode

L-phase power supply lead

(Black)

N-phase power supply lead

(White)

Serial lead (Orange)

Reactor lead connector

(White)

CN701:

4-way valve connector

RY701:

4-way valve relay

CN300:

Fan motor connector

CN602:

Outdoor temperature

(TO) sensor connector

12V

GND

CN806:

Optional connector

CN600:

Heat exchange temperature

(TE) sensor connector

IC800: MCU

CN603:

Suction temperature

(TS) sensor connector

Comp. lead

(Red) (White) (Black)

CN601:

Discharge temperature

(TD) sensor connector

CN500:

Fan drive circuit

Case thermo

Q300 to Q305:

connector

FET (QTY: 6P)

Comp. drive circuit

Q200 to Q205: IGBT (QTY: 6P)

IC200: Drive IC (QTY: 1P)

CN700:

PMV connector

CN605:

Sub SW board connector

J800 to 803, 806

Model switch jumper line

RAV-SP804AT-E, RAV-SP804ATZ-E, RAV-SP804ATZG-E

<MCC-1571>

Fan motor output

CN300 (White)

Compressor output terminals

CN202

CN201

CN200

Power circuit protective fuse

F100 (250V, 3.15A plastic case)

4-way valve connector

CN701 (White)

Electrolytic capacitors

Case thermo connector

CN609 (Blue)

Compressor ON

output connector

CN704 (Blue)

Heater output connector

CN703 (Gray)

Reactor connecting

connectors

Optional input connector

CN610 (Yellow)

Specific operation SW

SW801

SW804

Lead wire for grounding

P09 (Black)

Display exchange SW

SW800

SW803

Power supply protective fuse

F01 (250V, 25A)

Temp. sensor connector

Power supply connecting lead wire

P01 (Red)

P02 (White)

TL CN604 (White)

TD CN603 (White)

TO CN602 (Yellow)

TE CN601 (White)

TS CN600 (White)

Power, Alarm display LED

D800 to 804 (Yellow)

D805 (Green)

Initial set SW

SW802

PMV connector

CN710 (White)

Inter-unit wire connector

CN04 (White)

4-way valve protective fuse

F700 (250V, 3.15A, plastic case)

Inter-unit wire protective fuse

F03 (250V, 10A)

Indoor/Outdoor communication signal LED

D503 (Green, Outdoor → Indoor)

D502 (Orange, Indoor → Outdoor)

– 69 –

10. TROUBLESHOOTING

10-1. Summary ofTroubleshooting

1. Before troubleshooting

1) Required tools/instruments

–

•

and

screwdrivers, spanners, radio cutting pliers, nippers, push pins for reset switch

• Tester, thermometer, pressure gauge, etc.

2) Confirmation points before check

a) The following operations are normal.

1. Compressor does not operate.

• Is not 3-minutes delay (3 minutes after compressor OFF)?

• Is not the outdoor unit in standby status though the remote controller reached the setup

temperature?

• Does not timer operate during fan operation?

• Is not an overflow error detected on the indoor unit?

• Is not outside high-temperature operation controlled in heating operation?

2. Indoor fan does not rotate.

• Does not cool air discharge preventive control work in heating operation?

3. Outdoor fan does not rotate or air volume changes.

• Does not high-temperature release operation control work in heating operation?

• Does not outside low-temperature operation control work in cooling operation?

• Is not defrost operation performed?

4. ON/OFF operation cannot be performed from remote controller.

• Is not the control operation performed from outside/remote side?

• Is not automatic address being set up?

(When the power is turned on at the first time or when indoor unit address setting is changed, the

operation cannot be performed for maximum approx. 5 minutes after power-ON.)

• Is not being carried out a test run by operation of the outdoor controller?

b) Did you return the cabling to the initial positions?

c) Are connecting cables of indoor unit and remote controller correct?

2. Troubleshooting procedure

When a trouble occurred, check the parts along with the following procedure.

→

Trouble

Confirmation of check code display

Check defective position and parts.

NOTE :

For cause of a trouble, power conditions or malfunction/erroneous diagnosis of microcomputer due to outer

noise is considered except the items to be checked. If there is any noise source, change the cables of the

remote controller to shield cables.

– 70 –

1. Before troubleshooting

1) Required tools/instruments

–

•

and

screwdrivers, spanners, radio cutting pliers, nippers, etc.

• Tester, thermometer, pressure gauge, etc.

2) Confirmation points before check

a) The following operations are normal.

1. Compressor does not operate.

• Is not 3-minutes delay (3 minutes after compressor OFF)?

• Is not the outdoor unit in standby status though the remote controller reached the setup

temperature?

• Does not timer operate during fan operation?

• Is not an overflow error detected on the indoor unit?

• Is not outside high-temperature operation controlled in heating operation?

2. Indoor fan does not rotate.

• Does not cool air discharge preventive control work in heating operation?

3) Outdoor fan does not rotate or air volume changes.

• Does not high-temperature release operation control work in heating operation?

• Does not outside low-temperature operation control work in cooling operation?

• Is not defrost operation performed?

4) ON/OFF operation cannot be performed from remote controller.

• Is not forced operation performed?

• Is not the control operation performed from outside/remote side?

• Is not automatic address being set up?

• Is not being carried out a test run by operation of the outdoor controller?

a) Did you return the cabling to the initial positions?

b) Are connecting cables between indoor unit and receiving unit correct?

2. Troubleshooting procedure

(When the power is turned on at the first time or when indoor unit address setting is changed, the operation

cannot be performed for maximum approx. 5 minutes after power-ON.)

When a trouble occurred, check the parts along with the following procedure.

Confirmation of lamp display

Check defective

→

(When 4-way air discharge cassette type

wireless remote controller is connected)

Trouble

position and parts.

1) Outline of judgment

The primary judgment to check where a trouble occurred in indoor unit or outdoor unit is performed with

the following method.

Method to judge the erroneous position by flashing indication on the display part of indoor unit

(sensors of the receiving unit)

The indoor unit monitors operating status of the air conditioner, and the blocked contents of

self-diagnosis are displayed restricted to the following cases if a protective circuit works.

– 71 –

10-2. Troubleshooting

10-2-1. Outline of judgment

The primary judgment to check whether a trouble occurred in the indoor unit or outdoor unit is carried out with

the following method.

Method to judge the erroneous position by flashing indication on the display part of the indoor unit

(sensors of the receiving part)

The indoor unit monitors the operating status of the air conditioner, and the blocked contents of self-diagnosis

are displayed restricted to the following cases if a protective circuit works.

: Go off,

: Go on,

: Flash (0.5 sec.)

Lamp indication

Check code

Cause of trouble occurrence

Operation Timer Ready

—

Power supply OFF or miswiring between receiving unit and indoor unit

No indication at all

E01

E02

E03

E08

E09

E10

Receiving error

Receiving unit

Miswiring or wire connection error

Sending error

between receiving unit and indoor unit

Communication stop

Operation Timer Ready

Flash

Duplicated indoor unit No.

Setup error

Duplicated master units of remote controller

Communication error between CPUs on indoor unit P.C. board

Wire connection error between indoor units, Indoor power OFF

(Communication stop between indoor master and follower or between main

and sub indoor twin)

E18

E04

Operation Timer Ready

Miswiring between indoor unit and outdoor unit or connection erorr

(Communication stop between indoor and outdoor units)

Flash

Operation Timer Ready

P10

P12

Overflow was detected.

Protective device of indoor unit worked.

Indoor DC fan error

Alternate flash

P03

P04

P05

P07

P15

P19

P20

P22

P26

P29

Outdoor unit discharge temp. error

Outdoor high pressure system error

Protective device of

outdoor unit worked.

∗1

Power supply voltage error

Heat sink overheat error

Gas leak detection error

Outdoor unit error

Operation Timer Ready

Alternate flash

4-way valve system error (Indoor or outdoor unit judged.)

Outdoor unit high pressure protection

Outdoor fan system error

Protective device of

outdoor unit worked.

Short-circuit error of compressor driving device

Position detection circuit error

∗1

Stopped because of error of other indoor unit in a group

(Check codes of E03/L03/L07/L08)

P31

∗1: These are representative examples and the check code differs according to the outdoor unit to be combined.

– 72 –

Lamp indication

Check code

Cause of trouble occurrence

Heat exchanger sensor (TCJ) error

Operation Timer Ready

F01

F02

P10

Heat exchanger sensor (TC) error

Heat exchanger sensor (TA) error

Indoor unit sensor error

Alternate flash

F04

F06

F07

F08

F12

F13

F15

Discharge temp. sensor (TD) error

Temp. sensor (TE) error

Operation Timer Ready

Alternate flash

Temp. sensor (TL) error

Temp. sensor (TO) error

Sensor error of outdoor unit

∗1

Temp. sensor (TS) error

Temp. sensor (TH) error

Temp. Sensor miswiring (TE, TS)

Operation Timer Ready

F29

F31

Indoor EEPROM error

Outdoor EEPROM error

Simultaneous flash

Operation Timer Ready

Simultaneous flash

H01

H02

H03

H04

L03

L07

L08

L09

Compressor break down

Compressor lock

Operation Timer Ready

Outdoor compressor system error ∗1

Current detection circuit error

Case thermostat worked.

Flash

Duplicated master indoor units

There is indoor unit of group connection → AUTO address

Operation Timer Ready

in individual indoor unit.

∗ If group construction and

Unsetting of group address

Missed setting

(Unset indoor capacity)

address are not normal

when power supply turned on,

automatically goes to address

setup mode.

Simultaneous flash

L10

L20

L29

L30

Operation Timer Ready

Unset model type (Service board)

Duplicated indoor central addresses

Others

Other error of outdoor unit

Outside interlock error

Simultaneous flash

∗1: These are representative examples and the check code differs according to the outdoor unit to be combined.

– 73 –

10-2-2. Others (Other than Check Code)

Lamp indication

Check code

Cause of trouble occurrence

Operation Timer Ready

—

During test run

Simultaneous flash

Operation Timer Ready

Disagreement of cool/heat

(Automatic cool/heat setting to automatic cool/heat prohibited model, or

setting of heating to cooling-only model)

—

Alternate flash

– 74 –

10-2-3. Check Code List (Indoor)

: Go on,

ALT (Alternate): Alternate flashing when there are two flashing LED SIM (Simultaneous): Simultaneous flashing when there are two flashing LED

^{: Flash,}l ^{: Go off}

(Indoor unit detected)

Check code indication

Sensor lamp indication

Block indication

Air conditioner operation

Representative defective position

Explanation of error contents

TCC-LINK central &

Wired remote controller

Automatic

reset

Operation

continuation

Operation Timer Ready Flash

Regular communication error between indoor and

remote controller

No communication from remote controller and network adapter

(Also no communication from central control system)

E03

E04

E08

E10

Indoor/Outdoor serial error

There is error on serial communication between indoor and outdoor units

Same address as yours was detected.

Duplicated indoor addresses

Communication error between indoor MCU

MCU communication error between main motor and micro computer

Regular communication error between

indoor master and follower units

Regular communication between indoor master and follower units is impossible,

Communication between twin master (main) and follower (sub) units is impossible.

E18

F01

F02

F10

F29

L03

L07

L08

L09

L20

L30

P01

P10

P12

P19

P31

ALT

SIM

ALT

Indoor unit, Heat exchanger (TCJ) error

Indoor unit, Heat exchanger (TC) error

Indoor unit, Room temp. sensor (TA) error

Indoor unit, other indoor P.C. board error

Duplicated setting of indoor group master unit

There is group cable in individual indoor unit.

Unset indoor group address

Open/short was detected on heat exchanger (TCJ).

Open/short was detected on heat exchanger (TC).

Open/short was detected on room temp. sensor (TA).

EEPROM error (Other error may be detected. If no error, automatic address is repeated.

There are multiple master units in a group.

When even one group connection indoor unit exists in individual indoor unit.

Indoor group address is unset.

Unset indoor capacity

Capacity of indoor unit is unset.

Duplicated central control system address

Outside error input to indoor unit (Interlock)

Indoor unit, AC fan error

Duplicated setting of central control system address

Abnormal stop by outside error (CN80) input

An error of indoor AC fan was detected. (Fan motor thermal relay worked.)

Float switch worked.

Indoor unit, overflow detection

Indoor unit, DC fan error

Indoor DC fan error (Over-current/Lock, etc.) was detected.

In heating operation, an error was detected by temp. down of indoor heat exchanger sensor.

Follower unit in group cannot operate by warning from [E03/L03/L07/L08] of master unit.

4-way valve system error

Other indoor unit error

When this warning was detected before group construction/address check finish at power supply was turned on, the mode shifts automatically to AUTO address setup mode.

(Remote controller detected)

Check code indication

Sensor lamp indication

Block indication

Air conditioner operation

Representative defective position

Explanation of error contents

Automatic

reset

Operation

continuation

Wired remote controller

Operation Timer Ready Flash

No master remote controller, Remote controller

communication (Receive) error

Signal cannot be received from indoor unit. Master remote controller was not set.

(including 2 remote controllers)

E01

E02

E09

—

Remote controller communication (Send) error

Signal cannot be sent to indoor unit.

In 2-remote controller control, both were set as master. (Indoor master unit stops warning

and follower unit continues operation.)

Duplicated master remote controller

(Central control devices detected)

Check code indication

Sensor lamp indication

Block indication

Air conditioner operation

Representative defective position

Explanation of error contents

Automatic

reset

Operation

continuation

TCC-LINK central

Operation Timer Ready Flash

Signal sending operation of central control system is impossible.

There are multiple same central devices. (AI-NET)

Is not displayed.

(Common use of

C05

C06

C12

—

Central control system communication (send) error

Central control system communication (receive) error

General-purpose device control interface batched warning

remote controller, etc.)

Signal receiving operation of central control system is impossible.

An error on device connected to general-purpose device control interface of exclusive to

TCC-LINK/AI-NET

—

By warning unit

(Above-mentioned)

Group follower unit is defective.

(For remote controller, above-mentioned [∗∗∗] details are displayed with unit No.

P30

—

Group follower unit is defective.

NOTE: Even for the same contents of error such as communication error, the display of check code may differ according to detection device.

When remote controller or central controller detects an error, it is not necessarily related to operation of the air conditioner. In this list, the check codes that outdoor unit detects are not described.

Check Code List (Outdoor)

: Go on,

^{: Flash,}l ^{: Go off}

ALT (Alternate): Alternate flashing when there are two flashing LED SIM (Simultaneous): Simultaneous flashing when there are two flashing LED

Sensor lamp part

Remote

Automatic

reset

Operation

continuation

controller

indication

Block indication

Operation Timer Ready Flash

ALT

Representative defective position

Detection

Explanation of error contents

Open/Short of discharge temp. sensor was detected.

F04

F06

Outdoor unit Discharge temp. sensor (TD) error

Outdoor unit Temp. sensor (TE, TS, TL) error

Outdoor

Open/Short of heat exchanger temp. sensor was detected.

Miswiring between TE sensor and TS sensor

ALT

F08

F07

F12

F13

F15

F31

ALT

SIM

Outdoor unit Outside temp. sensor (TO) error

Outdoor unit Temp. sensor (TL) error

Outdoor unit Temp. sensor (TS) error

Outdoor unit Temp. sensor (TH) error

Outdoor unit Misconnection of temp. sensor (TE, TS)

Outdoor unit EEPROM error

Outdoor

Open/Short of outside temp. sensor was detected.

Open/Short of heat exchanger temp. sensor was detected.

Open/Short of suction temp. sensor was detected.

Open/Short of heat sink temp. sensor (Board installed) was detected.

Misconnection of outdoor heat exchanger temp. sensor and suction temp. sensor was detected.

Outdoor P.C. board part (EEPROM) error was detected.

When reached min-Hz by current release control, short-circuited current (Idc) after

DC excitation was detected.

H01

Outdoor unit Compressor break down

H02

H03

H04

L10

Outdoor unit Compressor lock

Outdoor

Compressor lock was detected.

Outdoor unit Current detection circuit error

Outdoor unit Case thermostat operation

Outdoor unit Setting error of service P.C. board type

Current detection circuit error

Case thermostat operation was detected.

SIM

When outdoor service P.C. board was used, model type select jumper setting was inappropriate.

1) Defective parts on outdoor P.C. board (MCU communication, EEPROM, TH sensor error)

2) When outdoor service P.C. board was used, model type selection was inappropriate.

3) Other error (Heat sink abnormal overheat, gas leak, 4-way valve inverse error) was detected.

L29

Outdoor unit Other outdoor unit error

Outdoor unit Discharge temp. error

Outdoor

P03

P04

ALT

Outdoor

Error was detected by discharge temp. release control.

Outdoor unit

When case thermostat worked, error was detected by high release control from indoor/

outdoor heat exchanger temp. sensor. Power supply voltage error

High pressure system error, Power supply voltage error

P05

P07

P15

P20

P22

P26

P29

ALT

Power supply error

Outdoor

Power supply voltage error

Outdoor unit Heat sink overheat

Gas leak detection

Abnormal overheat was detected by outdoor heat sink temp. sensor.

Abnormal overheat of discharge temp. or suction temp. was detected.

Error was detected by high release control from indoor/outdoor heat exchanger temp. sensor.

Error (Over-current, lock, etc.) was detected on outdoor fan drive circuit.

Short-circuited protective operation of compressor drive circuit element (G-Tr /IGBT) worked.

Position detection error of compressor motor was detected.

Outdoor unit High pressure system error

Outdoor unit Outdoor fan error

Outdoor unit Inverter Idc operation

Outdoor unit Position detection error

No remote controller master unit

Remote controller communication error

Remote

controller

Signal was not received from indoor unit.

Main remote controller was not set. (including 2 remote controllers)

E01

E02

E03

—

Remote

controller

Remote controller send error

Signal cannot be sent to indoor unit.

—

Regular communication error between indoor and

remote controller

Indoor

No communication from remote controller and network adapter

E04

E08

Indoor/Outdoor serial error

Indoor

Serial communication error between indoor and outdoor

Same address as yours was detected.

Duplicated indoor addresses

Remote

controller

In 2-remote controller control, both were set as master.

(Indoor master unit stops warning and follower unit continues operation.)

E09

E10

E18

Duplicated main remote controllers

Communication error between CPU

Indoor

MCU communication error between main motor and micro computer

Regular communication error between master and

follower indoor units

Regular communication was impossible between master and follower indoor units.

Communication between twin master (Main unit) and follower (sub unit) was impossible.

Indoor

L03

L07

L08

L09

L30

SIM

Duplicated indoor master units

Indoor

There are multiple master units in a group.

When even one group connection indoor unit exists in individual indoor unit

Indoor address group was unset.

There is group cable in individual indoor unit.

Unset indoor group address

Unset indoor capacity

Capacity of indoor unit was unset.

Outside error input to indoor unit (Interlock)

Abnormal stop by CN80 outside error input

Indoor

Outdoor

P19

ALT

4-way valve inverse error

In heating operation, error was detected by temp. down of indoor heat exchanger or temp. up ofTE, TS.

When this warning was detected before group construction/address check finish at power supply was turned on, the mode shifts automatically to AUTO address setup mode.

: Go on,

^{: Flash,}l ^{: Go off}

ALT (Alternate): Alternate flashing when there are two flashing LED SIM (Simultaneous): Simultaneous flashing when there are two flashing LED

Sensor lamp part

Block indication

Remote

controller

indication

Automatic

reset

Operation

continuation

Representative defective position

Detection

Explanation of error contents

Open/Short of heat exchanger (TCJ) was detected.

Operation Timer Ready Flash

ALT

F01

F02

F10

F29

P01

P10

P12

P31

Indoor unit Heat exchanger sensor (TCJ) error

Indoor unit Heat exchanger sensor (TC) error

Indoor unit Room temp. sensor (TA) error

Indoor unit Other indoor P.C. board error

Indoor unit Indoor fan error

Indoor

ALT

SIM

ALT

Open/Short of heat exchanger (TC) was detected.

Open/Short of room temp. (TA) was detected.

EEPROM error (Other error may be detected. If no error, automatic address is repeated.

Indoor AC fan error was detected. (Fan thermal relay worked.)

Float switch worked.

Indoor unit Overflow detection

Indoor unit Indoor fan error

Indoor fan error (Over-current / Lock, etc.) was detected.

Other indoor under condition of warning in group. E03/L07/L03/L08 warning

Other indoor unit error

Sub remote controller error in a group

(Details of remote controller are displayed with unit No. Only central control side is displayed.)

—

By unit with warning No.

ALT

Error in indoor group

Network adapter

Network adapter/

Center

Communication error of central control system signal

∗ Is not displayed on the remote controller

—

LAN system communication error

Network adapter/

Center

L20

—

SIM

LAN system communication error

Duplicated indoor address of central control system communication

—

There are multiple communication adapters.

Network adapter

There are multiple communication adapters on remote controller communication line.

Error mode detected by indoor unit

Operation of diagnostic function

Judgment and measures

Check

code

Status of

air conditioner

Cause of operation

Condition

1. Check cables of remote controller and communication adapters.

• Remote controller LCD display OFF (Disconnection)

• Central remote controller [97] check code

No communication from remote

controller (including wireless) and

communication adapter

Stop

Displayed when

E03

(Automatic reset) error is detected

The serial signal is not output from

outdoor unit to indoor unit.

1. Outdoor unit does not completely operate.

• Inter-unit wire check, correction of miswiring

• Check outdoor P.C. board. Correct wiring of P.C. board.

• Miswiring of inter-unit wire

Stop

Displayed when

E04

• Defective serial sending circuit on

outdoor P.C. board

(Automatic reset) error is detected

2. When outdoor unit normally operates

Check P.C. board (Indoor receiving / Outdoor sending).

• Defective serial receiving circuit on

indoor P.C. board

E08

L03

Duplicated indoor unit address

Duplicated indoor master unit

1. Check whether remote controller connection (Group/Individual)

was changed or not after power supply turned on

(Finish of group construction/Address check).

Displayed when

error is detected

∗ If group construction and address are not normal when the

power has been turned on, the mode automatically shifts to

address setup mode. (Resetting of address)

Stop

There is group wire in individual indoor

unit.

L07

L08

L09

Unset indoor group address

Unset indoor capacity

Displayed when 1. Set indoor capacity (DN=11)

error is detected

Stop

Displayed when 1. Check outside devices.

L30

P10

Abnormal input of outside interlock

error is detected

2. Check indoor P.C. board.

1. Trouble of drain pump

Float switch operation

Displayed when 2. Clogging of drain pump

Stop

• Float circuit, Disconnection,

Coming-off, Float switch contact error

error is detected

3. Check float switch.

4. Check indoor P.C. board.

1. Position detection error

Displayed when 2. Over-current protective circuit of indoor fan driving unit operated.

P12

P19

Indoor DC fan error

Stop

error is detected

3. Indoor fan locked.

4. Check indoor P.C. board.

1. Check 4-way valve.

4-way valve system error

Displayed when 2. Check 2-way valve and check valve.

• After heating operation has started,

indoor heat exchangers temp. is

down.

(Automatic reset) error is detected

3. Check indoor heat exchanger (TC/TCJ).

4. Check indoor P.C. board.

Stop

1. Judge follower unit while master unit is [E03], [L03], [L07] or [L08].

2. Check indoor P.C. board.

Own unit stops while warning is output

to other indoor units.

Displayed when

(Follower unit)

error is detected

(Automatic reset)

P31

F01

F02

Coming-off, disconnection or short of

indoor heat exchanger temp. sensor

(TCJ)

1. Check indoor heat exchanger temp. sensor (TCJ).

2. Check indoor P.C. board.

Stop

Displayed when

(Automatic reset) error is detected

Coming-off, disconnection or short of

indoor heat exchanger temp. sensor

(TC)

1. Check indoor heat exchanger temp. sensor (TC).

2. Check indoor P.C. board.

Stop

Displayed when

(Automatic reset) error is detected

Coming-off, disconnection or short of

indoor heat exchanger temp. sensor

(TA)

1. Check indoor heat exchanger temp. sensor (TA).

2. Check indoor P.C. board.

Stop

Displayed when

F10

F29

(Automatic reset) error is detected

Indoor EEPROM error

Stop

Displayed when 1. Check indoor EEPROM. (including socket insertion)

(Automatic reset) error is detected

• EEPROM access error

2. Check indoor P.C. board.

Communication error between indoor

MCU

1. Check indoor P.C. board.

Stop

Displayed when

E10

E18

(Automatic reset) error is detected

• Communication error between fan

driving MCU and main MCU

1. Check remote controller wiring.

2. Check indoor power supply wiring.

3. Check indoor P.C. board.

Regular communication error between

indoor aster and follower units and

between main and sub units

Stop

Displayed when

(Automatic reset) error is detected

– 78 –

Error mode detected by remote controller or central controller (TCC-LINK)

Operation of diagnostic function

Judgment and measures

Status of

air conditioner

Check code

Cause of operation

Condition

Power supply error of remote controller, Indoor

EEPROM error

1. Check remote controller inter-unit wiring.

2. Check remote controller.

No communication with master indoor unit

• Remote controller wiring is not correct.

• Power of indoor unit is not turned on.

• Automatic address cannot be completed.

Not displayed at all

(Operation on

remote controller

is impossible.)

3. Check indoor power wiring.

4. Check indoor P.C. board.

Stop

—

5. Check indoor EEPROM.

(including socket insertion)

→ Automatic address repeating phenom-

enon generates.

Receiving error from remote controller

1. Check remote controller inter-unit wiring.

2. Check remote controller.

No communication with master indoor unit

Stop

(Automatic reset)

E01

• Disconnection of inter-unit wire between

remote controller and master indoor unit

(Detected by remote controller side)

Displayed when

error is detected

∗ If center exists,

∗2

3. Check indoor power wiring.

operation continues.

4. Check indoor P.C. board.

Stop

Sending error of remote controller

(Automatic reset)

Signal send error to indoor unit

(Detected by remote controller side)

Displayed when 1. Check sending circuit inside of remote

E02

∗ If center exists,

error is detected

controller.

operation continues.

→ Replace remote controller.

1. In 2-remote controllers (including wireless),

there are multiple main units.

Stop

(Sub unit

continues operation.)

There are multiple main remote controllers.

(Detected by remote controller side)

Displayed when

error is detected

E09

L20

Check that there are 1 main remote

controller and other sub remote controllers.

1. Check setting of central control system

network address. (Network adapter SW01)

Duplicated indoor central addresses on

communication of central control system

(Detected by indoor/central controller side)

Stop

(Automatic reset)

Displayed when

error is detected

Central controller

L20

2. Check network adapter P.C. board.

—

1. Check communication wire / miswiring

2. Check communication (U3, U4 terminals)

3. Check network adapter P.C. board.

∗3

Communication circuit error of central

control system

(Detected by central controller side)

Continues

Displayed when

Central controller

(Send)

4. Check central controller (such as central

control remote controller, etc.)

(By remote controller) error is detected

C05

(Receive)

C06

5. Check terminal resistance. (TCC-LINK)

—

Continuation/Stop

(According

to each case)

Indoor Gr sub unit error

(Detected by central controller side)

Displayed when Check the check code of the corresponding

error is detected unit from remote controller.

Central controller

P30

∗2 The check code cannot be displayed by the wired remote controller.

(Usual operation of air conditioner becomes unavailable.)

For the wireless models, an error is notified with indication lamp.

∗3 This trouble is related to communication of remote controller (A, B), central system (TCC-LINK U3, U4), and

[E01], [E02], [E03], [E09] or [E18] is displayed or no check display on the remote controller according to the

contents.

– 79 –

Error mode detected by outdoor unit

The check code has been ramified from “4 series” and after.

The ramified check code is displayed only when both the indoor unit and the outdoor unit are “4 series” and after.

(Ex. Combination of RAV-SM804UT-E with RAV-SP804AT-E)

When the indoor unit is 3 series and before, the conventional check code is displayed.

(Ex. Combination of RAV-SM802BT-E and RAV-SP804AT-E: Outdoor unit only is “4 series”.)

Operation of diagnostic function

Check code

Judgment and measures

Indoor unit

Status of

air conditioner

Cause of operation

Condition

before

after

3 series 4 series

1. Check discharge temp. sensor (TD).

2. Check outdoor P.C. board.

Disconnection, short-circuit of

discharge temp. sensor (TD)

Displayed when

error is detected

F04

F06

F04

F06

F07

F12

F15

F08

Stop

1. Check temp. sensor (TE).

2. Check outdoor P.C. board.

Disconnection, or short-circuit of

outdoor temp. sensor (TE)

Displayed when

error is detected

1. Check temp. sensor (TL).

2. Check outdoor P.C. board.

Disconnection, or short-circuit of

outdoor temp. sensor (TL)

Displayed when

error is detected

Stop

1. Check suction temp. sensor (TS).

2. Check outdoor P.C. board.

Disconnection, or short-circuit of

suction temp. sensor (TS)

Displayed when

error is detected

Stop

1. Check temp. sensor (TE, TS).

2. Check outdoor P.C. board.

Miss-mounting of outdoor temp.

sensor (TE, TS)

Displayed when

error is detected

Stop

1. Check outside temp. sensor (TO).

2. Check outdoor P.C. board.

Disconnection, or short-circuit of

outside temp. sensor (TO)

Displayed when

error is detected

F08

L29

Continue

Disconnection, or short-circuit of heat

sink temp. sensor (TH)

Displayed when 1. Check outdoor P.C. board.

error is detected

F13

F31

L10

L29

Stop

Displayed when 1. Check outdoor P.C. board.

error is detected

Outdoor P.C. EEPROM error

Displayed when 1. Outdoor service P.C. board

Incorrect setting of service P.C. board

error is detected

Check model type setting jumper wire.

Communication error between MCUs

on outdoor P.C. board

Displayed when 1. Check outdoor P.C. board.

error is detected

Heat sink overheat error

1. Check screw tightening between PC. Board and heat

sink and check radiator grease.

Displayed when

error is detected

P07

P15

Stop

∗ Heat sink temp. sensor detected

over the specified temperature.

2. Check heat sink cooling.

1. Check gas leak.

Detection of gas leak

2. Check whether the service valve is fully opened.

3. Check PMV (Pulse Motor Valve).

4. Check broken pipe.

Displayed when

error is detected

∗ Discharge temp. sensor (TD),

Suction temp. sensor (TS) detected

temperature over the specified temp.

5. Check discharge temp. sensor (TD), suction temp.

sensor (TS).

4-way valve inverse error

1. Check operation of 4-way valve.

∗ After heating operation has started,

indoor heat exchanger temp. lowers

under the specified temp.

2. Check outdoor heat exchanger (TE), suction temp.

sensor (TS).

Displayed when

P19

H01

Stop

error is detected 3. Check indoor heat exchanger sensor (TC).

4. Check 4-way valve coil.

∗ After heating operation has started,

outdoor heat exchanger / suction

temp. rises over the specified temp.

5. Check PMV (Pulse Motor Valve).

Compressor break down

1. Check power supply voltage. (AC198 to 264V)

Displayed when

error is detected

∗ Although operation has started,

operation frequency decreases and

operation stops.

2. Overload operation of refrigerating cycle

H01

Compressor lock

1. Trouble of compressor (Lock, etc.): Replace compressor.

Displayed when

H02

H03

H02

H03

* Over-current detection after

compressor start-up

Stop

2. Wiring error of compressor (Open circuit)

error is detected

Displayed when

error is detected

1. Check outdoor P.C. board. (AC current detection circuit)

Current detection circuit error

– 80 –

Operation of diagnostic function

Cause of operation

Check code

Indoor unit

Judgment and measures

Status of

air conditioner

Condition

before

after

3 series 4 series

1. Check refrigerating cycle (Gas leak)

2. Trouble of electronic expansion valve

3. Check discharge temp. sensor (TD).

Discharge temp. error

∗ Discharge temp. (TD) detected

temperature over the specified temp.

Displayed when

error is detected

P03

P04

P03

Stop

1. Check case thermostat and connector.

2. Check gas leak, recharge

Case thermostat operation

Displayed when

error is detected

H04

P05

Stop

3. Check whether the service valve is fully opened.

4. Check PMV (Pulse Motor Valve).

5. Check broken pipe.

∗ Abnormal overheat of compressor

Displayed when 1. Check power supply voltage. AC198 to 264V

error is detected

Power supply voltage error

1. Check outdoor heat exchanger sensor (TL).

2. Check indoor heat exchanger sensor (TC, TCJ).

3. Check full open of service valve.

High pressure protective operation

• During cooling operation, outdoor

temp. sensor (TL) detected

temperature over specified temp.

P20

P22

Stop

Displayed when 4. Check indoor/outdoor fan.

error is detected

5. Check PMV (Pulse Motor Valve).

• During heating operation, indoor

temp. sensor (TC, TCJ) detected

temperature over specified temp.

6. Check clogging and short circuit of indoor/outdoor heat

exchanger.

7. Overcharge of refrigerant. Recharge

1. Check lock of fan motor.

Displayed when

error is detected

P22

Outdoor fan system error

2. Check power supply voltage. AC198 to 264V

3. Check outdoor P.C. board.

1. When performing operation while taking-off compressor

wire, P26 error occurs. Check control P.C. board.

Short-circuit error of compressor

driving device

Displayed when

Stop

P26

P29

P26

P29

error is detected 2. When performing operation while taking-off compressor

wire, an error does not occur. (Compressor rare short)

Displayed when 1. Check control P.C. board.

error is detected

Position detection circuit error

– 81 –

10-2-4. Diagnostic Procedure for Each Check Code (Indoor Unit)

Check code

[E01 error]

Correct inter-unit cable

of remote controller

Is inter-unit cable of A and B normal?

YES

Is there no disconnection or

contact error of connector on harness

from terminal block of indoor unit?

YES

Correct connection of connector.

Check circuit wiring.

Is group control operation?

YES

Check power connection of indoor unit.

(Turn on power again.)

Is power of all indoor units turned on?

YES

Check indoor P.C. board (MCC-1570).

Is power supplied to remote controller?

AB terminal: Approx. DC18V

Defect → Replace

YES

Are 2 remote controllers set

without master unit?

Correct a master unit/a follower unit.

(Remote controller address connector)

Check remote controller P.C. board.

Defect → Replace

[E09 error]

YES

Are 2 master units set in

2 remote controllers?

Correct as a master unit

and a follower unit.

Check remote controller P.C. board.

Defect → Replace

– 82 –

[E04 error]

Is group address setup of

remote controller correct?

Does outdoor operate?

Check Item code [14].

YES

Are wiring in indoor unit and

1, 2, 3 inter-unit cables correct?

Correct wiring and

inter-unit cables.

YES

Correct wiring of connector

and terminal blocks.

Are wirings of terminal blocks

(1, 2, 3) wired to CN04 normal?

YES

Check indoor P.C. board.

Does D502 (Orange LED) flash

after power supply turned on again?

Defect → Replace

YES

Check outdoor P.C. board.

Check indoor P.C. board.

Defect → Replace

[E10 error]

YES

Check power supply voltage.

Correct lines.

Check and eliminate noise, etc.

Is there no disorder of power supply?

Check indoor control P.C. board

(MCC-1570).

Defect → Replace

– 83 –

[E18 error]

Correct inter-unit cable

of remote controller.

Is inter-unit cable

of A and B normal?

YES

Is there no disconnection

or contact error of connector

on harness from terminal block

of indoor unit?

YES

Correct connection of connector.

Check circuit wiring.

Is group control operation?

YES

Check power

connection status of indoor unit

(Connect again).

Is power of all indoor units turned on?

YES

Is Twin or Triple control?

YES

Is there no contact error

of indoor/outdoor inter-unit cable

(Signal line) of the main unit?

YES

Correct indoor/outdoor inter-unit cable

(Serial signal line).

Check indoor P.C. board

(MCC-1570).

Defect → Replace

[E08, L03, L07, L08 error]

E08: Duplicated indoor unit No.

L03: There are 2 or more master units in a group control.

L07: There is 1 or more group address [Individual] in a group control.

L08: The indoor group address is unset. (13. ADDRESS SETUP)

If the above error is detected when power supply turned on, the mode enters automatically in the automatic

address set mode. (Check code is not output.)

However, if the above error is detected during the automatic address set mode, a check code may be

output.

[L09 error]

YES

Set capacity data of indoor unit.

(Setup item code (DN)=11)

Is not yet capacity setting

of indoor unit set up?

Check indoor P.C. board (MCC-1570).

Defect → Replace

– 84 –

[L20 error]

Are wiring connections

to communication lines

U3 and U4 normal?

Correct wiring connection.

YES

Is not the multiple same central

control system addresses connected?

Correct central control system address.

Check central controller

(including network adapter) and

indoor P.C. board (MCC-1570).

Defect → Replace

[L30 error]

Are outside devices of

Check indoor P.C. board (MCC-1570).

connector CN80 connected?

Defect → Replace

YES

Check outside devices.

Defect → Replace

Do outside devices normally work?

YES

Check cause of operation.

[P30 error] (Central controller)

Is group operation carried out?

YES

Is there check code

on sub remote controller in main

and sub remote controllers?

YES

Check indoor P.C. board (MCC-1570).

Check corresponding

indoor unit/outdoor unit.

Defect → Replace

– 85 –

[P10 error]

Is connection of

float switch connector

(Indoor control board CN34)

normal?

Correct connection

of connector.

YES

Does float switch work?

YES

Is circuit wiring normal?

Check and correct wiring

and wire circuit.

Does drain pump work?

YES

Are connector pins 1 and 2

at drain pump unit side shorted

(Resistance value 0)?

Is power of

drain pump turned on? ∗

YES

Replace drain pump

and indoor P.C. board

(MCC-1570).

Check the drain pipe, etc.

Check indoor P.C. board

(MCC-1570).

Replace drain pump.

Check wiring.

Defect → Replace

∗ Check that voltage of 1-2 pin of CN504 on the indoor P.C. board is +12V. (1 pin is plus (+).)

[F10 error]

Is connection of TA sensor connector

(CN104 on indoor P.C. board) correct?

Correct connection of connector.

YES

Are characteristics of

TA sensor resistance value normal?

Replace TA sensor.

YES

∗ Refer to Characteristics-1.

Check indoor P.C. board (MCC-1570).

Defect → Replace

– 86 –

[P12 error]

Turn off the power.

Is there no connection error or

disconnection on connectors CN333

and CN334 of indoor unit P.C. board

(MCC-1570)?

YES

Correct connection

of connector.

CN333

Remove connectors CN333

and CN334 of indoor unit P.C. board

(MCC-1570).

CN334

Does the fan rotate without trouble

when handling the fan with hands?

Replace indoor fan motor.

YES

Are resistance values

between phases at fan motor connector

CN333 motor side of indoor P.C. board

(MCC-1570) correct? ∗1

Incorrect

Replace indoor fan motor.

Correct

∗1

^{• Are not coil windings between}ꢀ ^{(Red lead) and}ꢁ ^{(White lead),}

^betweenꢁ ^{(White lead) and}ꢂ ^{(Black lead),}

^betweenꢂ ^{(Black lead) and}ꢀ ^{(Red lead) opened or shorted?}

→ The resistance should be the resistance value below.

SM40, SM45, SM56, SM80 → Approx. 70 to 100Ω

SM110, SM140, SM160 → Approx. 27 to 40Ω

^{• Is not grounded between cabinet and}ꢀ^,ꢁ^,ꢂ^{. → It should be 10MΩ or more.}

Is resistance value of

fan motor connector CN334 motor side

of indoor P.C. board

Incorrect

Replace indoor fan motor.

(MCC-1570) correct? ∗2

Correct

∗2

Resistance value confirmation of the fan motor position detection circuit

^{Is not status between}ꢀ ^{(Yellow lead) and}ꢃ ^{(Pink lead) opened or shorted?}

→ The resistance should be approx. 5k to 20kΩ.

Is output of

indoor fan motor position

Replace indoor fan motor.

detection signal correct? ∗3

YES

∗3

Confirmation of the fan motor position detection signal

^{• Using a voltage tester, measure voltage between CN334}ꢀ ^andꢁ ^{on the indoor P.C. board}

(MCC-1570) under condition that CN333 and CN334 are mounted and the power supply is turned on.

→ When rotating the fan slowly with hands, the pin voltage should shake between 0 and 5V.

^{• Between}ꢃ ^andꢁ^{: 5V}

Check indoor P.C. board

(MCC-1570).

Defect → Replace

– 87 –

[F02 error]

Is connection of TC sensor connector

Correct connection of connector.

(CN101 on Indoor P.C. board) correct?

YES

Are characteristics of

TC sensor resistance value normal?

Replace TC sensor.

YES

∗ Refer to Characteristics-2.

Check indoor P.C. board (MCC-1570).

Defect → Replace

[F01 error]

Is connection of TCJ sensor connector

(CN102 on Indoor P.C. board) correct?

Correct connection of connector.

Replace TCJ sensor.

YES

Are characteristics of

TCJ sensor resistance value normal?

YES

∗ Refer to TCJ sensor

(Temperature-Resistance value characteristic table)

Check indoor main P.C. board (MCC-1570).

Defect → Replace

– 88 –

[C06 error] (TCC-LINK central controller)

Are U3 and U4 communication lines normal?

YES

Correct communication line.

∗1

Correct connection of connector.

Is connection of connector normal?

YES

∗1

TCC-LINK central:

CN51 of TCC-LINK adapter P.C. board (MCC-1440) and CN050 of indoor P.C. board

Check connection of A and B terminal blocks.

Correct communication line of remote controller.

Are A and B communication lines normal?

YES

Is there no connection error of power supply cable?

Correct power wiring.

Is not the source power supply turned on?

YES

Turn on the source power supply.

YES

Did a power failure occur?

YES

Is the network address changed

from the remote controller?

Clear the check code.

Eliminate noise, etc.

Is there no noise source?

Uncontrolled

(Same to others)

Can the other indoor units

be normally controlled from the central controller?

Or is the operation status of indoor unit reflected?

Check central controller.

Defect → Replace

YES

Uncontrolled

Can the indoor unit be normally controlled

from the remote controller?

Check indoor P.C. board (MCC-1570).

Defect → Replace

YES

Check power supply transformer on

TCC-LINK adapter P.C. board (MCC-1440).

Defect → Replace

– 89 –

[E03 error] (Master indoor unit)

[E03 error] is detected when the indoor unit cannot receive a signal from the remote controller

(also central controller).

Check A and B remote controllers and communication lines of the central control system U3 and U4.

As communication is impossible, this check code [E03] is not displayed on the remote controller and the central

controller. [E01] is displayed on the remote controller and [C06 error] is displayed on the central controller.

If these check codes generate during operation, the air conditioner stops.

[F29 error]

This check code indicates a detection error of IC10 non-volatile memory (EEPROM) on the indoor unit P.C.

board, which generated during operation of the air conditioner. Replace the service P.C. board.

∗ When EEPROM was not inserted when power supply turned on or when the EEPROM data read/write

operation is impossible at all, the automatic address mode is repeated. In this time, [97 error] is displayed on

the central controller.

(Approx.

3 minutes)

(Approx.

1 minute)

LED (D02) on indoor unit

P.C. board flashes with

1Hz for approx. 10 seconds.

[SET] is displayed

on remote controller.

[SET]

goes off.

Reboot

(Reset)

(Power ON)

(Repetition)

[P31 error] (Follower indoor unit)

When the master unit of a group operation detected [E03], [L03], [L07] or [L08] error, the follower unit of the

group operation detects [P31 error] and then the unit stops.

There is no display of the check code or alarm history of the remote controller. (In this model, the mode enters

in automatic address set mode when the master unit detected [L03], [L07] or [L08] error.)

– 90 –

10-2-5. Diagnostic Procedure for Each Check Code (Outdoor Unit)

1) This section describes the diagnostic method for each check code displayed on the wired remote controller.

2) When “APPLICATION CONTROL KIT” (TCB-PCOS1E2) sold separately is connected, the error contents

can be judged by LED on the APPLICATION CONTROL KIT. In this case, turn off both bit 1 and 2 of DIP

switch 01 on the All-purpose control kit.

Check APPLICATION CONTROL KIT

Check / Countermeasures

(Part without special mention indicates a part of the outdoor unit.)

code

LED display

[E04]

—

[Indoor / Outdoor communication error]

Is setting of group address

on the remote controller correct?

Check item code [14].

YES

Are inner wiring of the indoor unit

and inter-unit wires (1, 2, 3) correct?

Correct wiring

and inter-unit wires.

YES

Is wiring of the

Correct wiring

outdoor terminal block correct?

of terminal block.

YES

Is connection of

case thermo (CN500) correct?

Correct connection

of connector.

YES

Check and correct charged

refrigerant amount.

YES

Does the case thermo operate?

Is the compressor abnormally heated?

Check outdoor P.C. board.

Defect → Replace

[F04]

D01

D02

D03

D04

[Discharge temp. sensor (TD) error]

(Red) (Yellow) (Yellow) (Yellow)

Is connection of CN601 correct?

Is resistance value of TD sensor correct?

Correct connector.

Sensor error → Replace

l l

YES

Check outdoor P.C. board.

Defect → Replace

[F06]

∗ There is a possibility that any of the following items is not correct.

Checking LED on the APPLICATION CONTROL KIT enables you to judge what is incorrect.

D01

D02

D03

D04

[Heat exchanger temp. sensor (TE) error]

(Red) (Yellow) (Yellow) (Yellow)

Is connection of CN600 correct?

Correct connector.

Sensor error → Replace

l l l

Is resistance value of TE sensor correct?

YES

Check outdoor P.C. board.

Defect → Replace

D01

D02

D03

D04

[Suction temp. sensor (TS) error] → Refer to column of [F12].

(Red) (Yellow) (Yellow) (Yellow)

l l

LED display legend:

Go off,

Go on,

Flash (5Hz)

– 91 –

Check APPLICATION CONTROL KIT

Check / Countermeasures

(Part without special mention indicates a part of the outdoor unit.)

code

LED display

[F08]

D01

D02 D03

D04

[Outside temp. sensor (TO) error]

(Red) (Yellow) (Yellow) (Yellow)

l l

Is connection of CN602 correct?

Is resistance value of TO sensor correct?

Correct connector.

Sensor error → Replace

YES

Check outdoor P.C. board.

Defect → Replace

[F12]

D01

D02

D03

D04

[Suction temp. sensor (TS) error]

(Red) (Yellow) (Yellow) (Yellow)

l l

Is connection of CN603 correct?

Is resistance value of TS sensor correct?

Correct connector.

Sensor error → Replace

YES

Check outdoor P.C. board.

Defect → Replace

[H01]

D01

D02

D03

D04

[Compressor breakdown]

(Red) (Yellow) (Yellow) (Yellow)

Is AC mains voltage correct?

198 to 264V

Correct power supply line.

YES

Is wiring connection correct?

Compressor lead

(P.C. board side, Compressor side)

Reactor cord, Power supply lead

Check and correct

wiring connection.

YES

Remove and

improve the cause of overload.

Does abnormal overload happen?

Check outdoor P.C. board.

Defect → Replace

[H02]

D01

D02

D03

D04

[Compressor lock]

(Red) (Yellow) (Yellow) (Yellow)

Is AC mains voltage correct?

198 to 264V

l l

Correct power supply line.

YES

Is wiring connection correct?

Compressor lead

(P.C. board side, Compressor side)

Reactor cord, Power supply lead

Check and

correct connection of wires.

YES

Is compressor

under correct

conditions?

Compressor lock

Is there stagnation

of refrigerant?

→ Replace

YES

TE, TS sensor,

Check PMV.

Defective → Replace

Does PMV operate correctly?

YES

Check outdoor P.C. board.

Defect → Replace

LED display legend:

Go off,

Go on,

Flash (5Hz)

– 92 –

Check APPLICATION CONTROL KIT

Check / Countermeasures

(Part without special mention indicates a part of the outdoor unit.)

code

LED display

[H03]

D01

D02 D03

D04

[Power supply error, Current detection circuit error]

(Red) (Yellow) (Yellow) (Yellow)

Are connections of wires correct?

Between power cable and terminal block

Between outdoor P.C. board and terminal block

l l

Correct wires

YES

Check outdoor P.C. board.

Defect → Replace

[L29]

D01

D02

D03

D04

[Power supply error, Current detection circuit error]

(Red) (Yellow) (Yellow) (Yellow)

l l

Correct

power supply line.

Is AC mains voltage correct?

198 to 264V

YES

Compressor trouble

Rare short check

Defective → Replace

Is compressor under correct conditions?

YES

Check outdoor P.C. board.

Defect → Replace

[P03]

D01

D02

D03

D04

[Discharge temp. error]

(Red) (Yellow) (Yellow) (Yellow)

YES

Is there gas leak?

Repair defective position.

Recharge refrigerant.

Is there refrigerant shortage?

Repair defective position.

Replace defective part.

Is PMV under correct conditions?

YES

Remove and improve

the cause of overload.

Does an abnormal overload happen?

Correct connector.

Sensor error → Replace

Is connection of CN601 correct?

Is resistance value of TD sensor correct?

YES

Check outdoor P.C. board.

Defect → Replace

[P04]

D01

D02

D03

D04

[Power supply error (Voltage error)]

(Red) (Yellow) (Yellow) (Yellow)

l l

Confirm power supply

construction, etc.

Is AC mains voltage correct?

198 to 264V

YES

Check outdoor P.C. board.

Defect → Replace

[P05]

[Power supply error (Voltage error)]

D01

D02

D03

D04

(Red) (Yellow) (Yellow) (Yellow)

→ Refer to columns [H03] and [P04] and then check power supply and

voltage error.

l l

LED display legend:

Go off,

Go on,

Flash (5Hz)

– 93 –

Check APPLICATION CONTROL KIT

Check / Countermeasures

(Part without special mention indicates a part of the outdoor unit.)

code

LED display

[P19]

—

[4-way reversal error]

Does 4-way valve work correctly?

(Check pipe temperature, etc.

during cooling/heating operation.)

YES

Is coil of 4-way valve

electrified during heating mode?

YES

Check outdoor P.C. board.

Defect → Replace

Check 4-way valve.

Defect → Replace

Is flow of refrigerant by

PMV under correct conditions?

Check PMV.

Defect → Replace

YES

Check temperature sensors.

TE sensor CN600, TS sensor CN603

Indoor TC sensor

Defective → Correct or replace

∗ In case of SP40 to 56, the coil of 4-way valve is electrified during cooling cycling.

∗ In cooling operation, [P19] error may be displayed when the refrigerant pressure rises high abnormally.

In this case, remove the cause of pressure rising and then diagnose it again.

[P22]

D01

D02

D03

D04

[Outdoor fan system error]

(Red) (Yellow) (Yellow) (Yellow)

Is connection of connector

CN300 correct?

Correct connection of connector.

YES

After pulling out the connector

of the fan motor CN300, rotate its shaft by hands.

Can it rotate smoothly?

Is the fan motor coil resistance within the range described below?

Between red and white lead : 18 to 30Ω

Between white and black lead : 18 to 30Ω

Between black and red lead : 18 to 30Ω

Fan motor

exchange

YES

Check outdoor P.C. board.

Defective → Replace

[P26]

D01

D02

D03

D04

[Short-circuit of compressor driving device]

(Red) (Yellow) (Yellow) (Yellow)

Is AC mains voltage correct?

198 to 264V

Correct power line.

l l l

YES

Is there any problem on connection

of compressor lead or reactor?

(Check connection referring to the wiring diagram.)

YES

Correct wiring.

Replace

outdoor P.C. board.

After disconnection of the compressor leads from

P.C. board, the air conditioner operates in heating mode.

Does the fan motor run?

YES

Check compressor. (Rare short, etc.)

Defective → Replace

[P29]

D01

D02

D03

D04

[Position detection circuit error]

(Red) (Yellow) (Yellow) (Yellow)

Check outdoor P.C. board.

Defective → Replace

l l

LED display legend:

Go off,

Go on,

Flash (5Hz)

– 94 –

10-2-6. Diagnostic Procedure for Each Check Code (Outdoor Unit)

1) This section describes the diagnostic method for each check code displayed on the wired remote controller.

2) In some cases, a check code indicates multiple symptoms.

In this case, confirm LED display on the outdoor P.C. board to narrow the contents to be confirmed.

3) The check code on the remote controller is displayed only when the same error occurred continuously by

multiple times while LED of the outdoor P.C. board displays even an error which occurred once.

Therefore the display on the remote controller may differ from that of LED.

How to check LED display on outdoor P.C. board

Dip switch setup

Only 1) of SW803 is ON.

• When turning on 1) only of SW803, the latest error

is displayed. As the memory is stored, it can be

confirmed even if the power supply is turned off

once. (excluding outside temp. sensor (TO) error)

• When the work finished or the outdoor temp.

sensor (TO) error was found, turn off all of SW803.

(The error which occurs at present is displayed.)

All SW803 are OFF. (Initial status)

Display selection

^{<Display 1>}ó^{<Display 2>}

(No error) (Error occurred)

(Push SW800)

• When an error happens, some of yellow LED

(D800 to D804) turn on. <Display 1>

D800 (Yellow)

D801 (Yellow)

D802 (Yellow)

D803 (Yellow)

D804 (Yellow)

D805 (Green)

• If pushing the button switch SW800 for 1 second

under the above condition, the yellow LED is

displayed with flashing. <Display 2>

• When pushing SW800 for 1 second again, the

status returns to <Display 1>.

(Example of discharge temp. sensor error)

: Go off, : Go on, : Flash

• The error contents can be confirmed by combining

<Display 1> and <Display 2>.

Check

code

Outdoor

LED display

Check and troubleshooting

(Item without special mention Indicates part of outdoor unit.)

—

[E04]

[Indoor/Outdoor communication error]

Is setting of group address

of remote controller correct?

Check Item code [14].

YES

Are inner wiring of indoor unit and

inter-unit wires (1, 2, 3) correct?

Correct wiring

and inter-unit cable.

YES

Are CN04 connection and wiring

of terminal blocks (1, 2, 3) correct?

Correct wiring of connectors

and terminal blocks.

YES

After turning off the power supply,

turn on it again.

Does D502 (Orange LED) flash?

Check indoor P.C. board.

Defect → Replace

YES

Check outdoor P.C. board.

Defect → Replace

– 95 –

Check

code

Outdoor

LED display

Check and troubleshooting

(Item without special mention Indicates part of outdoor unit.)

[F04]

<Display 1> <Display 2> [Discharge temp. sensor (TD) error]

Correct connector.

Sensor error → Replace

Is connection of CN603 correct?

Is resistance value of TD sensor correct?

YES

Check outdoor P.C. board.

Defect → Replace

[F06]

• There is a possibility that it is one of the following errors.

Confirm LED on outdoor P.C. board to judge which error it is.

Heat exchanger temp. sensor (TE) error, Heat exchanger temp. sensor (TL) error,

Suction temp. sensor (TS) error, Miswiring of heat exchanger sensor (TE, TS)

<Display 1> <Display 2> Heat exchanger temp. sensor (TE) error]

Correct connector.

Sensor error → Replace

Is connection of CN601 correct?

Is resistance value of TE sensor correct?

YES

Check outdoor P.C. board.

Defect → Replace

<Display 1> <Display 2> [Heat exchanger temp. sensor (TL) error] → Refer to [F07] column.

<Display 1> <Display 2> [Suction temp. sensor (TS) error] → Refer to [F12] column.

<Display 1> <Display 2> [Miswiring of heat exchanger sensor (TE,TS)] → Refer to [F15] column.

[F07]

<Display 1> <Display 2> [Heat exchanger temp. sensor (TL) error]

Correct connector.

Sensor error → Replace

Is connection of CN604 correct?

Is resistance value of TL sensor correct?

YES

Check outdoor P.C. board.

Defect → Replace

– 96 –

Check

code

Outdoor

LED display

Check and troubleshooting

(Item without special mention Indicates part of outdoor unit.)

[F08]

<Display 1> <Display 2> [Outside temp. sensor (TO) error]

Correct connector.

Sensor error → Replace

Is connection of CN602 correct?

Is resistance value of TO sensor correct?

YES

Check outdoor P.C. board.

Defect → Replace

[F12]

<Display 1> <Display 2> [Suction temp. sensor (TS) error]

Correct connector.

Sensor error → Replace

Is connection of CN600 correct?

Is resistance value of TS sensor correct?

YES

Check outdoor P.C. board.

Defect → Replace

[F13]

<Display 1> <Display 2> [Heat sink temp. sensor (TH) error]

Check outdoor P.C. board.

Defect → Replac

[F15]

<Display 1> <Display 2> [Miswiring of heat exchanger sensor (TE,TS)]

Is mounting status of

TE and TS sensors correct?

Correct sensor mounting.

YES

Correct connector.

Sensor error → Replace

Is connection of CN600 correct?

Is resistance value of TS sensor correct?

YES

Is connection of CN601 correct?

Correct connector.

Is resistance value of TE sensor correct?

Sensor error → Replace

YES

Check outdoor P.C. board.

Defect → Replace

[F31]

<Display 1> <Display 2> [EEPROM error]

Check outdoor P.C. board.

Defect → Replace

– 97 –

Check

code

Outdoor

LED display

Check and troubleshooting

(Item without special mention Indicates part of outdoor unit.)

[H01]

<Display 1> <Display 2> [Compressor break down]

Is AC mains voltage correct?

AC198 to 264V

Correct power supply line.

YES

Is wire connection correct?

Compressor lead

(Board side, Compressor side),

Reactor lead, Power supply lead

Check wire connection

and correct it.

YES

Remove and improve

the cause of overload.

Does an abnormal overload happen?

Check outdoor P.C. board.

Defect → Replace

[H02]

<Display 1> <Display 2> [Compressor lock]

Is AC mains voltage correct?

AC198 to 264V

Correct power supply line.

YES

Is wire connection correct?

Compressor lead

(Board side, Compressor side),

Reactor lead, Power supply lead

Check wire connection

and correct it.

YES

Check outdoor P.C. board.

Is compressor under correct conditions?

Defect → Replace

Is there refrigerant stagnation?

YES

Compressor lock → Replace

Check TE, TS sensors and PMV.

Does PMV correctly operate?

YES

Defect → Replace

Check outdoor P.C. board.

Defect → Replace

[H03]

<Display 1> <Display 2> [Current detection circuit error]

Check outdoor P.C. board.

Defect → Replace

– 98 –

Check

code

Outdoor

LED display

Check and troubleshooting

(Item without special mention Indicates part of outdoor unit.)

[H04]

<Display 1> <Display 2> [Case thermostat operation]

Are CN609 connection and

case thermostat correct?

Correct connector.

Case thermostat error → Replace

YES

Check outdoor P.C. board.

Short each pins of CN609.

Can compressor operate?

Defect → Replace

YES

Repair defectives position.

Recharge refrigerant.

Is there gas leak?

Is there refrigerant shortage?

Is service valve fully opened?

YES

Open service valve fully.

Correct defective position.

Replace defective part.

Is PMV under correct conditions?

YES

Check crushed or broken pipe.

Defect → Correct and Replace

[L10]

<Display 1> <Display 2> [Unset model type]: Only when service P.C. board is used

Cut jumper line according

to the explanation sheet packaged

with the service P.C. board.

– 99 –

Check

code

Outdoor

LED display

Check and troubleshooting

(Item without special mention Indicates part of outdoor unit.)

[L29]

∗ There is a possibility that it is one of the following errors.

Confirm LED on outdoor P.C. board to judge which error it is.

Communication error between MCU, Heat sing temp. sensor (TH) error,

EEPROM error, Unset model type, Heat sink overheat error, Gas leak detection,

4-way valve inverse error

<Display 1> <Display 2> [Communication error between MCUs]

Check outdoor P.C. board.

Defect → Replace

<Display 1> <Display 2> [Heat sink temp. sensor (TH) error] → Refer to [F13] column.

<Display 1> <Display 2> [EEPROM error] → Refer to [F31] column.

<Display 1> <Display 2> [Unset model type] → Refer to [L10] column.

<Display 1> <Display 2> [Heat sink overheat error] → Refer to [P07] column.

<Display 1> <Display 2> [Gas leak detection] → Refer to [P15] column.

<Display 1> <Display 2> [4-way valve inverse error] → Refer to [P19] column.

– 100 –

Check

code

Outdoor

LED display

Check and troubleshooting

(Item without special mention Indicates part of outdoor unit.)

[P03]

<Display 1> <Display 2> [Discharge temp. error]

YES

Repair defective position.

Recharge refrigerant.

Is there gas leak?

Is there refrigerant shortage?

Repair defective position.

Replace defective part.

Is PMV under correct conditions?

YES

Remove and improve

the cause of overload.

Does an abnormal overload happen?

Correct connector.

Sensor error → Replace

Is connection of CN603 correct?

Is resistance value of TD sensor correct?

YES

Check outdoor P.C. board.

Defect → Replace

[P04]

∗ There is a possibility that it is one of the following errors.

Confirm LED on outdoor P.C. board to judge which error it is.

Power supply error (Vdc), High pressure protective operation, Case thermostat

operation

<Display 1> <Display 2> [Case thermostat operation] → Refer to [H04] column.

<Display 1> <Display 2> [Power supply error] → Refer to [P05] column.

<Display 1> <Display 2> [High pressure protective operation] → Refer to [P20] column.

[P05]

<Display 1> <Display 2> [Power supply error]

Is AC mains voltage correct?

198 to 264V

Confirm power supply

construction, etc.

YES

Check outdoor P.C. board.

Defect → Replace

– 101 –

Check

code

Outdoor

LED display

Check and troubleshooting

(Item without special mention Indicates part of outdoor unit.)

[P07]

<Display 1> <Display 2> [Heat sink overheat error]

Are the power devices on

P.C. board screwed without looseness?

(Rear sides of Q201, Q300, Q650, DB01, DB02)

Are radiation grease properly applied?

(Q201, Q650, DB01, DB02)

YES

Apply radiation grease to objective parts.

Retightening of screws.

(Be sure not to forget to attach insulating sheet

between heat sink and Q300.)

Does something block the

ventilation around the heat sink?

Does something block air flow

from the fan?

YES

Remove blocking matter.

Correct short-circuit.

Check outdoor P.C. board.

Defect → Replace

[P15]

<Display 1> <Display 2> [Gas leak detection]

YES

Is there gas leak?

Is there refrigerant shortage?

Repair defective part.

Recharge refrigerant.

Correct defective part.

Replace defective part.

Is PMV under correct conditions?

YES

Open service valve fully.

Is service valve fully opened?

YES

Correct and replace piping.

Is there crushed pipe?

Check temp. sensor.

TD sensor CN603

TS sensor CN600

Error

Correct connector.

Sensor error → Replace

Check outdoor P.C. board.

Defect → Replace

– 102 –

Check

code

Outdoor

LED display

Check and troubleshooting

(Item without special mention Indicates part of outdoor unit.)

[P19]

<Display 1> <Display 2> [4-way valve reversal error]

Temperature sensor check

TE sensor CN601

TS sensor CN600

Indoor TC sensor

Defect → Correct and repair

Does 4-way valve

work correctly?

(Check pipe temp. etc.

in cooling/heating operation.)

YES

Is the coil resistance value

of 4-way valve between

1.3kΩ and 1.6 kΩ?

Replace coil of 4-way valve.

YES

Check operation of

outdoor P.C. board.

(See below.)

Error

Check outdoor P.C. board.

Defect → replace

Check 4-way valve.

Defect → Replace

Check method of outdoor P.C. board operation (Self-holding valve type)

1) Set SW804 of Dip switch as the following figure and then push SW801 for

approx. 1 second to check exchange operation to cooling cycle/heating cycle.

• Power is turned on for approx. 10 seconds.

• In case of operating with the coil of 4-way valve connected to CN701, take

interval over 1 minute before re-operation; otherwise it may cause overheat

of the coil.

2) After check, turn off all the Dip switch SW804.

Exchange to cooling cycle

Exchange to heating cycle

SW804 SW801 CN701

Push

DC200V or more

Note) Check by tester

Analog tester : Good if over DC200V

Digital tester : Good if the maximum voltage is over DC200V though

the varied voltage may be displayed.

∗ In cooling operation, [P19] error may happen when the refrigerant pressure rose

abnormally. In this case, remove the cause of pressure rising and then diagnose

the error again.

– 103 –

Check

code

Outdoor

LED display

Check and troubleshooting

(Item without special mention Indicates part of outdoor unit.)

[P20]

<Display 1> <Display 2> [High pressure protective operation]

Is service valve

fully opened?

Open service valve fully.

YES

Reset the power supply

and then perform test run

matching to the season.

Cooling season

Cooling operation

Heating season

Heating operation

Is resistance value

of TL sensor correct?

YES

Replace TL sensor.

YES

Is there any defect such as

loosening of nut in the outdoor fan?

Check outdoor fan.

Defect → Replace, retightening

YES

Does the outdoor fan perform

abnormal operation?

Check the same items as

[P22] error.

Is there anything

which interfere heat exchange

of outdoor unit?

YES

• Clogging of heat exchanger

• Short-circuit

Eliminate interfering element.

Check overcharge of refrigerant, clogging of cycle,

broken pipe, abnormal overload, etc.

Defect → Correct defect.

Does indoor fan

operate correctly?

Are indoor fan motor

an connector correct?

YES

Repair defect.

Are resistance values

of indoor TC and TCJ

sensors normal?

Replace

sensor.

YES

Check indoor P.C. board.

Defect → Replace

Is there anything which interfere

heat exchange of indoor unit?

• Choking up the filter

• Clogging of heat exchanger

• Short-circuit

YES

Eliminate interfering element.

Check overcharge of refrigerant, clogging of cycle,

broken pipe, abnormal overload, etc.

Defect → Correct defect.

– 104 –

Check

code

Outdoor

LED display

Check and troubleshooting

(Item without special mention Indicates part of outdoor unit.)

[P22]

<Display 1> <Display 2> [Fan system error]

Is AC mains voltage correct?

(198 to 264V)

Check wiring construction.

Ask repair of power supply.

YES

Rotate shaft of the fan motor by hands

during power-OFF. Can it rotate smoothly?

Is coil resistance of fan motor correct?

YES

Between red and white lead wire : 12 to 20Ω

Between white and black lead wire : 12 to 20Ω

Between black and red lead wire : 12 to 20Ω

Check outdoor P.C. board.

Replace fan motor.

Defect → Replace

Single operation check for outdoor fan

1) Set Dip switch of SW804 as the following figure and then push SW801 for

approx. 1 second to check single operation of outdoor fan.

Use this method to check which fan, upper or lower fan, has a trouble.

• When SW801 is pushed for 1 second

again or 2 minutes passed, the fan stops.

Outdoor fan single operation

2) After check, turn off all Dip switch of

SW804.

SW804

SW801

Push

[P26]

[Short-circuit of compressor drive element]

Are connections of

compressor lead and reactor correct?

(Check referring to the Wiring diagram.)

Correct wiring.

YES

Does the same error occur in

operation without compressor lead?

Replace outdoor P.C. board.

Check compressor. (Rear short, etc.)

Defect → Replace

[P29]

[Position detection circuit error]

Check outdoor P.C. board.

Defect → Replace

—

No code

[Other error] Compressor disorder due to sudden change of load, etc.

∗ Although the display of outdoor LED outputs, the unit automatically restarts

and error is not determined.

∗ LED display also may output due to wire coming-off of compressor.

– 105 –

10-2-7. Diagnostic Procedure for Each Check Code (Outdoor Unit)

Temperature sensor Temperature – Resistance value characteristic table

TA,TC,TCJ,TE,TS,TO sensors TD,TL sensors

Representative value

Resistance value (kΩ)

(Minimum value) (Standard value) (Maximum value)

Resistance value (kΩ)

(Minimum value) (Standard value) (Maximum value)

Temperature

(°C)

100

32.33

19.63

12.23

9.75

33.80

20.35

12.59

10.00

7.990

5.192

3.451

2.343

1.623

1.146

0.8237

0.6023

35.30

21.09

12.95

10.25

8.218

5.375

3.594

2.454

1.709

1.213

0.8761

0.6434

100

150.5

92.76

58.61

47.01

37.93

25.12

17.00

11.74

8.269

5.925

4.321

3.205

161.3

99.05

62.36

49.93

40.22

26.55

17.92

12.34

8.668

6.195

4.507

3.336

172.7

105.6

66.26

52.97

42.59

28.03

18.86

12.95

9.074

6.470

4.696

3.468

7.764

5.013

3.312

2.236

1.540

1.082

0.7740

0.5634

TA,TC,TCJ,TE,TS,TO sensors

90 100

Temperature (˚C)

TD,TL sensors

200

150

100

90 100

Temperature (˚C)

∗ As TH sensor (Outdoor unit heat sink temp. sensor) is incorporated in the outdoor control P.C. board, the

resistance value cannot be measured.

– 106 –

11. REPLACEMENT OF SERVICE P.C. BOARD

11-1. Indoort Unit (Slim DuctType)

<Note: when replacing the P.C. board for indoor unit servicing>

The nonvolatile memory (hereafter called EEPROM, IC503) on the indoor unit P.C. board before replacement

includes the model specific type information and capacity codes as the factory-set value and the important

setting data which have been automatically or manually set when the indoor unit is installed, such as system/

indoor/group addresses, high ceiling select setting, etc.

When replacing the P.C. board for indoor unit servicing, follow the procedures below.

After replacement completes, confirm whether the settings are correct by checking the indoor unit No., Group

header unit/follower unit settings and perform the cooling cycle confirmation through the trial operation.

CASE 1

Before replacement, the indoor unit can be turned on and the setting data can be read out by

wired remote control operation.

EEPROM data read out [1]

Replacement of P.C. board for Indoor unit servicing and power on [2]

Writing the read out EEPROM data [3]

Power reset

(for all indoor units connected to the remote control when the group operation control is performed.)

CASE 2

The EEPROM before replacement is defective and the setting data cannot be read out.

EEPROM data read out [2]

Writing the setting data to EEPROM, such as high ceiling installation setting and

optional connection setting, etc., based on the customer information. [3]

Power reset

(for all indoor units connected to the remote control when the group operation control is performed.)

– 107 –

[1] Setting data read out from EEPROM

The setting data modified on the site, other than factory-set value, stored in the EEPROM shall be read out.

SET

TEST

Step 1 Push

and

button on the remote controller simultaneously for more than 4 seconds.

∗ When the group operation control is performed, the unit No. displayed for the first time is the header unit No.

At this time, the CODE No. (DN) shows “10 ”. Also, the fan of the indoor unit selected starts its operation

and the swing operation also starts if it has the louvers.

UNIT LOUVER

Step 2 Every time when the

button is pushed, the indoor unit No. under the group control is displayed in

order. Specify the indoor unit No. to be replaced.

1. Change the CODE No. (DN) to 10 → 01 by pushing

buttons for the temperature

setting. (this is the setting for the filter sign lighting time.)

At this time, be sure to write down the setting data displayed.

2. Change the CODE No. (DN) by pushing

buttons for the temperature setting.

Similarly, be sure to write down the setting data displayed.

3. Repeat the step 2-2 to set the other settings in the same way and write down the setting data as shown

in the table 1 (example).

∗ The CODE No. (DN) are ranged from “01 ” to “FF ”. The CODE No. (DN) may skip.

TEST

Step 3 After writing down all setting data, push

button to return to the normal stop status.

(It takes approx. 1 min until the remote controller operation is available again.)

CODE No. required at least

1. The CODE No. for the Indoor unit type and Indoor unit capacity are

required to set the rotation number setting of the fan.

Contents

Type

2. If the system/indoor/group addresses are different from those before

replacement, the auto-address setting mode starts and the manual

resetting may be required again.

Indoor unit capacity

System address

Indoor unit address

Group address

(when the multiple units group operation including twin system.)

[2] P.C. Board for indoor unit servicing replacement procedures

Step 1 Replace the P.C. board to the P.C. board for indoor unit servicing.

At this time, perform the same setting of the jumper wire (J01) setting (cut), switch SW501, (short-circuit)

connector CN34 as the setting of the P.C. board before replacement.

Step 2 According to the system configuration, turn on the indoor unit following to the either methods shown below.

a) Single operation (Indoor unit is used as standalone.)

Turn on the indoor unit.

1. After completion of the auto-address setting mode (required time: approx. 5 min.), proceed to [3].

(System address = 1, Indoor unit address = 1, Group address = 0 (standalone) are automatically set.)

SET

TEST

2. Push

and

buttons simultaneously for more than 4 seconds to interrupt the auto-address

setting mode, and proceed to [3]. (The unit No. “

” is displayed.)

b) Group operation (including twin system)

Turn on the indoor unit(s) with its P.C. board replaced to the P.C. board for indoor unit servicing, accord-

ing to either methods 1 or 2 shown below.

1. Turn on only the indoor unit with its P.C. board replaced. (Be sure to confirm the remote controller is

surely connected. If not, the operation [3] cannot be performed.)

Perform either methods 1 or 2 described in item a) above.

2. Turn on the multiple indoor units including the indoor unit with its P.C. board replaced.

• Twin 1 system only

• All group connections

After completion of the auto-address setting mode (required time: approx. 5 min.), proceed to [3].

∗ The header unit of the group may be changed by performing the auto-address setting.

Also, the system address/Indoor unit address of the indoor unit with its P.C. board replaced may be

assigned to the addresses (not used) other than those of the indoor units without its P.C. board replaced.

It is recommended to keep the information in advance, which cooling system the indoor unit belongs to

or whether the indoor unit works as the header unit or the follower unit in the group control operation.

– 108 –

[3] Writing the setting data to EEPROM

The settings stored in the EEPROM of the P.C. board for indoor unit servicing are the factory-set values.

SET

TEST

Step 1 Push

and

buttons on the remote controller simultaneously for more than 4 seconds.1

∗ In the group control operation, the unit No. displayed for the first time is the header unit No.

At this time, the CODE No. (DN) shows “10 ”. Also, the fan of the indoor unit selected starts its operation

and the swing operation starts if it has the louvers.

(The unit No. “

” is displayed if the auto-address setting mode is interrupted in [2] step 2 a))

UNIT LOUVER

Step 2 Every time when

button is pushed, the indoor unit No. in the group control operation are displayed

^{in order.}2

(The settings stored in the EEPROM of the P.C. board for indoor unit servicing are the factory-set values.)

Specify the indoor unit No. with its P.C. board replaced to the P.C. board for indoor unit servicing.

(You cannot perform this operation if “

” is displayed.)

Step 3 Select the CODE No. (DN) can be selected by pushing the

button for the temperature setting. 3

• Set the indoor unit type and capacity.

The factory-set values shall be written to the EEPROM by changing the type and capacity.

1. Set the CODE No. (DN) to “10 ”. (without change)

2. Select the type by pushing

buttons for the timer setting. 4

(For example, 4-way Air Discharge Cassette Type is set to “0001”. Refer to table 2)

SET

3. Push

button. 5 (The operation completes if the setting data is displayed.)

buttons for the temperature setting.

buttons for the timer setting.

4. Change the CODE No. (DN) to “11 ” by pushing

5. Select the capacity by pushing

(For example, 80 Type is set to “0012”. Refer to table 3)

SET

6. Push

button. 6 (The setting completes if the setting data are displayed.)

7. As P.C. board of the Slim Duct type differs from that of the 4-way Discharge Cassette type, selection by

HP is unnecessary.

TEST

8. Push the

button to return to the normal stop status.

(It takes approx. 1 min until the remote controller operation is available again.)

If the plug for short-circuit is attached on the P.C. board

before replacement, attach it on the P.C. board replaced.

Connector (CN504)

for drain pump

CN34

SW501

(Red)

J02

Type

Jumper wire (J02)

J01

Slim Duct

SM40 to 56

None

<Fig. 1 RBC-AMT32E>

– 109 –

Step 4 Write the on-site setting data to the EEPROM, such as address setting, etc. Perform the steps 1 and 2

above again.

Step 5 Change the CODE No. (DN) to “01 ” by pushing

buttons for the temperature setting.

(this is the setting for the filter sign lighting time.)

Step 6 Check the setting data displayed at this time with the setting data put down in [1].

1. If the setting data is different, modify the setting data by pushing

buttons for the timer setting to

the data put down in [1].

The operation completes if the setting data is displayed.

2. If the data is the same, proceed to next step.

Step 7 Change the CODE No. (DN) by pushing

As described above, check the setting data and modify to the data put down in [1].

Step 8 Repeat the steps 6 and 7.

Step 9 After the setting completes, push

buttons for the temperature setting.

TEST

button to return to the normal stop status.

(It takes approx. 1 min until the remote control operation is available again.)

∗ The CODE No. (DN) are ranged from “01 ” to “FF ”. The CODE No. (DN) is not limited to be serial No.

SET

Even after modifying the data wrongly and pushing

button, it is possible to return to the data before

modification by pushing

button if the CODE No. (DN) is not changed.

<Fig. 2 EEPROM layout diagram>

The EEPROM (IC503) is attached to the IC socket. When detaching the EEPROM, use a tweezers, etc.

Be sure to attach the EEPROM by fitting its direction as shown in the figure.

∗ Do not bend the IC lead when replacing.

Cut out

EEPROM

IC503

Cut out

IC socket

– 110 –

Table 1. Setting data (CODE No. table (example))

Setting data

Item

Filter sign lighting time

Factory-set value

Depending on Type

Filter pollution leve

0000: standard

Central control address

0099: Not determined

0002: +2°C

(flooring installation type: 0)

Heating suction temperature shift

Cooling only

0000: Heat pump

Type

Depending on model type

Depending on capacity type

0099: Not determined

Indoor unit capacity

System address

Indoor unit address

Group address

Temperature range of cooling/heating

automatic SW control point

0003: 3 deg (Ts ± 1.5)

Power failure automatic recovery

Option/Abnormal input (CN70) SW

0000: None

0002: Humidifier

Thermo output SW (T10

)

0000: Thermo ON

0000: Not available

0000: Body sensor

0003: Humidifier ON + Pump OFF

Ventilation fan (standalone)

Sensor SW (Selection of static pressure)

Humidifier control (+ drain pump control)

0000: Standard (10Pa)

0001: High static pressure 1 (20Pa)

0003: High static pressure 2 (35Pa)

0006: High static pressure 3 (50Pa)

External static pressure

Timer setting (wired remote controller)

0000: Available

0075: 75 %

Demand setting

(outdoor unit current demand)

Remote controller operation save function

Frost protection function

0001: Enable

0000: None

Table 2. Type: CODE No. 10

Table 3. Indoor unit capacity: CODE No. 11

Setting data

Type

Type name abb.

Setting data

0000*

0006

Type

Disable

0005

Slim Duct Type

RAV-SM∗∗∗SDT-E

0007

0009

0012

0015

110

140

160

0017

0018

∗ EEPROM initial value on the P.C. board for indoor unit servicing.

– 111 –

12. SETUP AT LOCAL SITE AND OTHERS

12-1. Indoor Unit (Slim DuctType)

12-1-1. Test Run Setup on Remote Controller

TEST

1. When pushing

button on the remote controller for 4 seconds or more, “TEST” is displayed on LC display.

ON / OFF

Then push

button.

• “TEST” is displayed on LC display during operation of Test Run.

• During Test Run, temperature cannot be adjusted but air volume can be selected.

• In heating and cooling operation, a command to fix the Test Run frequency is output.

• Detection of error is performed as usual. However, do not use this function except case of Test Run

because it applies load on the unit.

2. Use either heating or cooling operation mode for [TEST].

NOTE : The outdoor unit does not operate after power has been turned on or for approx. 3 minutes after

operation has stopped.

TEST

3. After a Test Run has finished, push

button again and check that [TEST] on LC display has gone off.

(To prevent a continuous test run operation, 60-minutes timer release function is provided to this remote

controller.)

12-1-2. Forced Defrost Setup of Remote Controller (For wired remote controller only)

(Preparation in advance)

TEST

SET

Push

buttons simultaneously for 4 seconds or more on the remote controller.

(Push buttons while the air conditioner stops.)

The first displayed unit No. is the master indoor unit address in the group control.

UNIT

Every pushing

other.

button, the indoor unit No. in the group control is displayed one after the

Select a main indoor unit (outdoor unit is connected) which is to be defrosted. In this time, fan and louver of

the selected indoor unit operate.

TEMP.

Using the set temperature

buttons, specify the item code (DN) 8C.

TIME

Using the timer time

buttons, set time to data 0001. (0000 at shipment)

SET

Push

button. (OK if indication lights)

TEST

Pushing

button returns the status to the normal stop status.

(Practical operation)

ON / OFF

• Push ON/OFF

Key.

• Select the HEAT mode.

• After while, the forced defrost signal is sent to the outdoor unit and then the outdoor unit starts defrost operation.

(The forced defrost operation is performed for Max. 12 minutes.)

• After defrost operation finished, the operation returns to the heating operation.

To execute the defrost operation again, start procedure from above item 1 .

(If the forced defrost operation was executed once, setting of the above forced defrost operation is cleared.)

– 112 –

12-1-3. LED Display on P.C. Board

1. D501 (Red)

• It goes on (Goes on by operation of the main microcomputer) at the same time when the power supply is

turned on.

• It flashes with 1-second interval (every 0.5 second):When there is no EEPROM or writing-in operation fails.

• It flashes with 10-seconds interval (every 5 second): During DISP mode

• It flashes with 2-seconds interval (every 1 second): While setting of function select (EEPROM)

2. D403 (Red)

• It goes on when power supply of the remote controller is turned on. (Lights on hardware)

3. D503 (Yellow): Main bus communication

• It goes on for 5 seconds in the first half of communication with the central controller.

4. D504 (Green): Sub bus communication

• It flashes for 5 seconds in the first half of communication with the remote controller. (Group master unit)

• It flashes with 0.2-second interval (for 0.1 second) for 5 second in the latter half of communication between

master and follower in the Gr indoor unit.

5. D14 (Orange)

• It flashes while receiving the serial signal from the outdoor unit. (Hardware)

6. D15 (Green)

• It flashes while sending the serial signal to the outdoor unit. (Hardware)

12-1-4. Function Selection Setup

<Procedure> Perform setting while the air conditioner stops.

TEST

SET

Push

buttons simultaneously for 4 seconds or more.

The first displayed unit No. is the master indoor unit address in the group control.

In this time, fan and louver of the selected indoor unit operate.

button (button at left side), the indoor unit No. in the group control is

displayed one after the other. In this time, fan and louver of the selected indoor unit only operate.

UNIT LOUVER

Every pushing

TEMP.

Using the set temperature

buttons, specify the item code (DN).

TIME

Using the timer time

buttons, select the set data.

button. (OK if indication lights)

SET

Push

• To change the selected indoor unit, proceed to Procedure

• To change item to be set up, proceed to Procedure

TEMP.

ON / OFF

button returns the status

to the normal stop status.

TEST

TIMER SET

TIME

FAN

SAVE

MODE

VENT

Pushing

FILTER

RESET TEST

SET

SWING/FIX

UNIT LOUVER

1 2 3 4 5 6 END

– 113 –

Function selection item No. (DN) list

Item

Contents

At shipment from factory

0000: None

0001: 150H

01 Filter sign lighting time

0002: 2500H

0004: 10000H

0003: 5000H

0005: Clogging sensor used

According to type

0000: Standard

0001: Heavy stain (Half of standard time)

02 Filter stain level

0000: Standard

0001: No.1 unit

0099: Undecided

0064: No.64 unit

03 Central control address

0099: Undecided

0000: No shift

0002: +2°C

0001: +1°C

0010: +10°C

(Up to +6 is recommended.)

0002: +2°C

(Floor type 0000: 0°C)

06 Heating suction temp. shift

0000: Heat pump

0001: Cooling only (No display for [AUTO] [HEAT] )

0F Cooling-only

10 Type

0000: Heat pump

0000: (1-way air discharge cassette)

0001: (4-way air discharge cassette) to 0037

According to model type

11 Indoor unit capacity

12 Line address

0000: Undecided

0001: No.1 unit

0000: Individual

0001 to 0034

According to capacity type

0099: Undecided

0030: No.30 unit

13 Indoor unit address

0064: No.64 unit

0099: Undecided

0001: Master unit in group

14 Group address

0099: Undecided

0002: Follower unit in group

In automatic cooling/heating, temp. 0000: 0 deg

0010: 10 deg

1E width of cool → heat, heat →

(Cool/heat are reversed with ± (Data value) /

2 against the set temperature)

0003: 3 deg (Ts±1.5)

0000: None

cool mode selection control point

28 Automatic reset of power failure

0000: None

0000: Filter input

0001: Provided

Selection of option / error input

(CN70)

0001: Alarm input (Air cleaner, etc.)

0002: Humidifier input

0002: Humidifier

Selection of thermostat output

(T10 ƒ )

0000: Indoor thermostat ON

0001: ON receiving output of outdoor compressor

0000: Thermostat ON

0000: Normal (JEMA)

2E Selection of HA (T10) terminal

0001: Card input (Forgotten to be off)

0002: Fire alarm input

0000: Normal (HA terminal)

31 Fan (Single operation)

32 Sensor selection

0000: Impossible

0001: Possible

0000: Impossible

0000: Body TA sensor

0001: Remote controller sensor

0000: Body sensor

0000: No control

Humidifier control

40 (+Drain pump control)

(This function is not provided.)

0001: Humidifier + Vaporizing type (Pump ON)

0002: Humidifier + Supersonic type

(Pump ON when specified time elapsed)

0003: Humidifier + Natural drain type (Pump OFF)

0003: Humidifier ON

Pump OFF

0000: Standard (At shipment)

0001: High static pressure 1

0003: High static pressure 2

0006: High static pressure 3

(10 Pa)

(20 Pa)

(35 Pa)

(50 Pa)

5d External static pressure

0000: Standard

Timer setting

0000: Operable

0001: Operation prohibited

0000: Operable

0075: 75%

(Wired remote controller)

C2 Current demand X% to outdoor unit 0050: 50%

0100: 100%

Existence of remote controller save 0000: Invalid (Impossible)

function 0001: Valid (Possible)

0001: Valid (Possible)

Existence of 8°C heating operation 0000: Invalid (Impossible)

function 0001: Valid (Possible)

0001: Invalid (Impossible)

– 114 –

12-1-5. Wiring and Setting of Remote Controller Control

2-remote controller control

(Controlled by 2 remote controllers)

How to set wired remote controller

as sub remote controller

This control is to operate 1 or multiple indoor units

are operated by 2 remote controllers.

(Max. 2 remote controllers are connectable.)

Change DIP switch inside of the rear side of the

remote controller switch from remote controller master

to sub. (In case of RBC-AMT32E)

• When connected 2 remote controllers

operate an indoor unit

Remote controller (Inside of the rear side)

Remote controller

switch (Master)

Remote controller

switch (Sub)

Sold

separately

Sold

separately

1 2

Sub remote

controller

A B

Master remote

controller

Remote controller

cables (Procured locally)

DIP switch

Terminal block for

remote controller cables

A B

Indoor unit

1 2 3

1 2 3

How to set wireless remote controller to sub

remote controller

Outdoor unit

Change OFF of Bit [3: Remote controller Sub/Master]

of switch S003 to ON.

• When connected 2 remote controllers

operate the twin

[Operation]

Remote controller

switch (Master)

Remote controller

1. The operation contents can be changed by Last-

push-priority.

switch (Sub)

Remote controller

inter-unit wire

(Procured locally)

Sold

separately

Sold

separately

2. Use a timer on either Master remote controller or

Sub remote controller.

A B

Terminal block for

remote controller cables

A B

Indoor unit 1

1 2 3

Indoor unit 2

1 2 3

Inter-unit wiring

between indoor units

(Procured locally)

Outdoor unit

(Setup method)

One or multiple indoor units are controlled by

2 remote controllers.

(Max. 2 remote controllers are connectable.)

– 115 –

12-1-6. Monitor Function of Remote Controller Switch

n Calling of sensor temperature display

Each data of the remote controller, indoor unit and outdoor unit can be understood by calling the service

monitor mode from the remote controller.

TEST

Push

buttons simultaneously for 4 seconds to

call the service monitor mode.

The service monitor goes on, the master indoor unit No. is

displayed at first and then the temperature of item code 00 is

displayed.

TEMP.

ON / OFF

TEMP.

TIMER SET

TIME

FAN

SAVE

MODE

VENT

Push temperature set

buttons and then change

the item code of data to be monitored.

FILTER

RESET TEST

SET

SWING/FIX

UNIT LOUVER

The item code list is shown below.

2 4 1

1 2 3 4

Returned to usual display

Item code

Data name

Room temperature

Unit

Item code

Data name

Unit

°C

Outdoor heat exchanger (Coil) temperature (TE)

Outside temperature (TO)

°C

(Remote controller)

Indoor suction temperature (TA)

°C

Compressor discharge temperature (TD)

Compressor suction temperature (TS)

Heat sink temperature (THS)

°C

Indoor heat exchanger (Coil)

temperature (TCJ)

°C

Indoor heat exchanger (Coil)

temperature (TC)

°C

Operation current (× 1/10)

Filter sign time

×1h

Compressor calculated operation time

×100h

UNIT LOUVER

Push

button to select the indoor unit to be monitored.

Each data of the indoor unit and its outdoor units can be monitored.

TEST

Pushing

button returns the status to the usual display.

∗1 The indoor discharge temperature of item code [F8] is the estimated value from TC or TCJ sensor.

Use this value to check discharge temperature at test run.

(A discharge temperature sensor is not provided to this model.)

• The data value of each item is not the real time, but value delayed by a few seconds to ten-odd seconds.

• If the combined outdoor unit is one before 2 or 3 series, the outdoor unit data [6D], [70], [72] and [73]

are not displayed.

– 116 –

n Calling of error history

The error contents in the past can be called.

SET

TEST

Push

buttons simultaneously for

TEMP.

ON / OFF

4 seconds or more to call the service check mode.

Service Check goes on, the item code 01 is displayed, and

then the content of the latest alarm is displayed. The number

and error contents of the indoor unit in which an error oc-

TIMER SET

TIME

FAN

SAVE

MODE

VENT

FILTER

RESET TEST

SET

SWING/FIX

UNIT LOUVER

2 ^{curred are displayed.}

In order to monitor another error history, push the set

temperature buttons to change the error

history No. (Item code).

Item code 01 (Latest) → Item code 04 (Old)

NOTE : 4 error histories are stored in memory.

2 3 1

TEST

Pushing

button returns the display to usual display.

1 2 3

REQUIREMENT

Returned to usual display

Do not push

button, otherwise all the error histories of the

indoor unit are deleted.

(Group control operation)

In a group control, operation of maximum 8 indoor units can be controlled by a remote controller.

The indoor unit connected with outdoor unit (Individual/Master of twin) controls room temperature according to

setting on the remote controller.

OUT

Master

2-1

1-1

3-1

4-1

7-1

Max. 8 units

Remote controller

1. Display range on remote controller

The setup range (Operation mode/Air volume select/Setup temp) of the indoor unit which was set to the

master unit is reflected on the remote controller.

2. Address setup

Turn on power of the indoor unit to be controlled in a group within 3 minutes after setting of automatic

address.

If power of the indoor unit is not turned on within 3 minutes (completion of automatic address setting), the

system is rebooted and the automatic address setting will be judged again.

1) Connect 3 In/Out cables surely.

2) Check line address/indoor address/group address of the unit one by one.

3) The unit No. (line/indoor gout address) which have been set once keep the present status as a rule if the

unit No. is not duplicated with one of another unit.

– 117 –

n Indoor unit power-ON sequence

Power ON

• The unit without power feed waits entirely

→ Waiting status is released by system start

• Reboot when power is fed on the way

<Automatic

address judgment>

Not normal

3 minutes elapse

Gr construction check

YES

Normal

∗ Gr normal

1) There is no duplicated indoor unit address.

2) There is no invalid indoor unit address.

3) Individual unit and master/follower units

are not intermingled.

4) Only a unit for individual.

5) A master indoor unit and 1 or more

follower indoor units for Gr.

System start

Automatic address starts.

(Approx. 1 minute up to finish)

Outdoor model distinction (10 seconds) (Indoor unit)

Twin Master/follower distinction (Indoor unit)

Gr construction, louver information (Remote controller)

• Power supply/Indoor/Outdoor serial and Gr wiring: OK

• Powers of all indoor units are turned on within 3 minutes.

• Reception time for remote controller operation

(After power supply was turned on)

1) When address is OK : Approx. 50 seconds

2) In AUTO address

: Approx. 4 to 5 minutes

Remote controller operation is available.

(Approx. 50 seconds after power-ON)

<Usual regular

communication>

Regular communication between indoor units (Every 30 seconds) (Master/Follower)

Regular communication on the identical pipe (every 30 seconds) (Twin Master/Follower)

(When the above status changes, immediately communicates.)

(Repetition)

• In a group operation, if the indoor unit which was fed power after judgment of automatic address cannot

receive regular communication from the master unit and regular communication on identical pipe within

120 seconds after power was turned on, it reboots (system reset).

→ The operation starts from judgment of automatic address (Gr construction check) again.

(If the address of the master unit was determined in the previous time, the power fed to the master unit and

reboot works, the master unit may change though the indoor unit line address is not changed.)

– 118 –

12-2. Setup at Local Site / Others

Model name:TCB-PCNT30TLE2

12-2-1. TCC-LINK Adapter (For TCC-LINK Central Control)

1. Function

This model is an optional P.C. board to connect the indoor unit to TCC-LINK (Central controller).

2. Microprocessor block diagram

Indoor unit

Central controller

TCC-LINK adapter P.C. board

CN40

CN050

Indoor control

P.C. board

CN041

CN51

TCC-LINK

communication circuit

Terminal

resistance

SW01

MCC-1440

Terminal block

(A, B)

TCC-LINK

Communication units

Communication distance : 2000 m

: Total 64 units

Remote controller

3. TCC-LINK wiring connection

CAUTION

1) When controlling customized setup collectively, TCC-LINK adapter (This option) is required.

2) In case of group operation or twin operation, the adapter is necessary to be connected to the main unit.

3) Connect the central control devices to the central control system wiring.

4) When controlling collectively customized setup only, turn on only Bit 1 of SW01 of the least line of the system

address No. (OFF when shipped from the factory)

∗ In case of customized setup, the address is necessary to be set up again from the wired remote

controller after automatic addressing.

Central control device

Central control devices: Max. 10 units

U1 U2

U3 U4

U1 U2

U3 U4

Refrigerant line 1

Refrigerant line 2

Refrigerant line 3

1 2 3

Refrigerant line 4

1 2 3

Outdoor unit

1 2 3

Indoor/outdoor inter-unit wire (AC230V serial)

Central control system wiring

Caution 3

* Wiring for No.1 and 2 only

Master

unit

Sub

unit

Sub unit

Master unit

Indoor unit

U3 U4 1 2 3

A B

U3 U4 1 2 3

1 2 3

A B

U3 U4 1 2 3

A B

TCC-LINK adapter

This product

(

)

Caution 1

Caution 2

sold separately

Remote controller

wiring

Remote controller

Group operation (Max. 8 units)

Indoor units in all refrigerant lines: Max. 64 units

Twin operation

[If mixed with multi model (Link wiring), multi indoor units are included.]

* However group sub units and twin sub units of customized setup are not included in number of the units.

– 119 –

4. Wiring specifications

No. of wires

Size

• Use 2-core with no polar wire.

Up to 1000m: twisted wire 1.25mm²

Up to 2000m: twisted wire 2.0mm²

• Match the length of wire to wire length of the central

control system.

If mixed in the system, the wire length is lengthened with all indoor/outdoor inter-unit wire length at side.

• To prevent noise trouble, use 2-core shield wire.

• Connect the shield wire by closed-end connection and apply open process (insulating process) to the last

terminal. Ground the earth wire to 1 point at indoor unit side. (In case of central controlling of digital inverter

unit setup)

CAUTION

1) Closed-end connection of shield wire (Connect all the connecting parts of each indoor unit)

2) Apply open process to the last terminal (insulating process).

3) Ground earth wire to 1 point at indoor unit side.

Central control device

U1 U2

Caution 2

Caution 1

Caution 3

Central control system wiring

Outdoor unit

1 2 3

: TCC-LINK adapter

(This option)

Master

unit

U3 U4 1 2 3

Sub unit

1 2 3

Sub unit

Master unit

Indoor unit

U3 U4 1 2 3

A B

1 2 3

U3 U4 1 2 3

A B

Earth terminal

Remote controller

(Group operation)

(Twin operation)

5. P.C. board switch (SW01) setup

When performing collective control by customized setup only, the setup of terminator is necessary.

• Using SW01, set up the terminator.

• Set up the terminator to only the adapter connected to the indoor unit of least line address No.

Central control device

Central control devices: Max. 10 units

U1 U2

U3 U4

U1 U2

U3 U4

Refrigerant line 1

Outdoor unit

Refrigerant line 2

Refrigerant line 3

1 2 3

Refrigerant line 4

1 2 3

Indoor/outdoor inter-unit wire (AC230V serial)

Central control system wiring

* Wiring for No.1 and 2 only

Master

unit

Sub

unit

Sub unit

Master unit

Indoor unit

U3 U4 1 2 3

1 2 3

A B

Remote controller wiring

Remote controller Remote controller

Group operation (Max. 8 units)

1 2 3

U3 U4 1 2 3

A B

TCC-LINK adapter

This product

sold separately

(

)

Remote controller

Twin operation

Line address

SW01 Bit 1

SW01 Bit 2

Remarks

OFF

(OFF at shipment from factory)

Turn SW01 Bit 1 to ON. As status shipped from factory

As status shipped from factory

(Reference) Setup contents of switch

SW01

Terminator

Remarks

Bit 1

OFF

Bit 1

OFF

None

100Ω

75Ω

Mixed with multi (Link wiring) at shipment from factory

Central control by digital inverter only

Spare

43Ω

– 120 –

6. External view of P.C. board assembly

Terminator (SW01)

7. Address setup

In addition to set up the central control address, it is necessary to change the indoor unit number.

(Line/Indoor/Group address). For details, refer to TCC-LINK Adapter Installation Manual.

12-3. How to Set up Central Control Address Number

When connecting the indoor unit to the central control remote controller using TCC-LINK adapter, it is neces-

sary to set up the central control address number.

• The central control address number is displayed as the line No. of the central control remote controller.

1. Setup from remote controller at indoor unit side

∗ If you use the network adapter P.C. board, it is effective only when No. 7 of setup switch SW01 on P.C.

board is turned off.

<Procedure> Perform setup while the unit stops.

VENT

TEST

Push

When group control is executed, first the unit No.

control are selected. In this time, fans of all the selected indoor units are turned on. (Fig. 1)

buttons for 4 seconds or more.

is displayed and all the indoor units in the group

UNIT LOUVER

(Keep

displayed status without pushing

button.)

In case of individual remote controller which is not group-controlled, Line address and Indoor unit address

are displayed.

TEMP.

Using temperature setup

buttons, specify item code 03.

TIME

Using timer time

buttons, select the setup data.

The setup data is shown in the table below (Table 1).

SET

Push

button. (OK if display goes on.)

(Fig.1)

• To change the item to be set up, return to Procedure 2.

TEST

Push

button.

The status returns to usual stop status.

(Table 1)

TEMP.

ON / OFF

Setup data

Central control address No.

TIMER SET

FAN

SAVE

MODE

VENT

0001

0002

0003

TIME

FILTER

RESET TEST

SET

SWING/FIX

UNIT LOUVER

0064

0099

Unset (Setup at shipment from factory)

– 121 –

2. How to confirm the central control address

(New function for AMT32E remote controller)

<Procedure> It can be confirmed even during operation or stopping.

UNIT LOUVER

Push

button for 4 seconds or more.

In the frame at left side of the remote controller screen, the lighting set contents are

displayed.

During unset time, 0099 (At shipment from factory) is displayed.

After lighting display for 3 seconds, the display automatically disappears.

If any button is pushed during display, immediately the display disappears and then the pushed button is

displayed.

3. How to set contents of save operation

In combination with outdoor units before 4 series, the displayed setup value exchanges, but the real operation is

“75% fixed”.

SAVE

Push

for 4 seconds or more during stop of the operation.

flashes.

•

UNIT LOUVER

Push

(At the left side of the button) and select the unit to be set.

• Every pushing the button, the unit No. changes.

The fan of the selected unit rotates and the louver swings.

UNIT No.

1–1

UNIT No.

1–2

UNIT No.

1–3

UNIT No. 1–4

Determine the capacity restricted value when pushing the save button of TIMER SET

• Every pushing the button, the capacity restricted value can be set at 1% interval in the range between

100% and 50%.

∗ The setting at shipment is 75%.

Setup value at saving

SET

TEST

Push

and then push

to finish the setup.

– 122 –

4. When installing separately sold filters

REQUIREMENT

• When you use this air conditioner for the first time, it takes approx. 5 minutes until the remote controller becomes

available after power-on. This is normal.

Approx. 5 minutes

It takes approx. 5 minutes until the remote controller

Remote

becomes available.

“SETTING”

flashes

“SETTING”

goes out

Power ON

controller

is available

Approx. 1 minute

Remote

It takes approx. 1 minute until the remote controller

“SETTING”

flashes

“SETTING”

goes out

becomes available.

Power ON

controller

is available

• Normal settings were made when the indoor unit

was shipped from factory. Change the indoor unit settings as required.

• Use the wired remote controller to change the settings.

∗ The settings cannot be changed using the wireless remote controller, sub remote controller, or remote-

controllerless system (for central remote controller only).

Therefore, install the wired remote controller to change the settings.

n Changing of settings of for applicable controls

Basic procedure for changing settings

Change the settings while the air conditioner is not working.

(Be sure to stop the air conditioner before making settings.)

Procedure 1

TEST

Push

button and temp. setup

button

simultaneously for at least 4 seconds.

After a while, the display flashes as shown in the

figure. Confirm that the CODE No. is [01].

TEST

• If the CODE No. is not [01], push

the display content, and repeat the procedure from

the beginning.

button to erase

Procedure 4

Using timer time

buttons, select SET DATA

(No operation of the remote controller is accepted for

[

∗∗∗∗

TEST

a while after

button is pushed.)

Procedure 5

Push

SET

button. When the display changes from

flashing to lit, the setup is completed.

• To change settings of another indoor unit, repeat

from Procedure 2.

• To change other settings of the selected indoor unit,

repeat from Procedure 3.

(∗ Display content varies with the indoor unit model.)

SET

Use

button to clear the settings.

SET

To make settings after

from Procedure 2.

button was pushed, repeat

Procedure 2

UNIT LOUVER

Each time you push

button, indoor unit

Procedure 6

When settings have been completed, push

numbers in the control group change cyclically.

Select the indoor unit you want to change settings for.

TEST

button

to determine the settings.

The fan of the selected unit runs. You can confirm the

indoor unit for which you want to change settings.

TEST

When

button is pushed, “SETTING” flashes and

then the display content disappears and the air

conditioner enters the normal stop mode.

(While “SETTING” is flashing, no operation of the

remote controller is accepted.)

∗∗

∗∗∗∗

Procedure 3

Using temp. setup

No. [ ].

buttons, specify CODE

∗∗

– 123 –

When wireless remote controller is used

n Setup of external static pressure

Change the external static pressure setting with the

DIP switch on the receiver section P.C. board.

Be sure to set up a tap change based upon the

resistance (external static pressure) of the duct

to be connected.

For details, refer to the manual of the wireless

remote controller kit.

To set up a tap change, follow to the basic

operation procedure

The settings can also be changed with the switch on

the indoor microcomputer P.C. board.

→

(1 2

→

3 4 5 6 ).

∗ However, once the setting is changed, setting to

0001 or 0006 is possible but setting to 0000

requires a setting data change to 0000 using the

wired remote controller (separately sold) with the

normal switch setting (factory setting).

^{• Specify [5d] to the item code in procedure}3.

• For the setup data of procedure 4, select a

setup data of the external static pressure to be

set up from the following table.

Setup data

0000

External static pressure

10 Pa

Standard (At shipment)

High static pressure 1

High static pressure 2

High static pressure 3

0001

20 Pa

35 Pa

50 Pa

0003

0006

SW501-1

SW501-2

MCU (IC501)

Setup data

SW501-1

SW501-2

0000

(Factory shipping)

OFF

0001

0003

0006

OFF

To restore the factory settings

To return the DIP switch settings to the factory

settings, set SW501-1 and SW501-2 to OFF, con-

nect a separately sold wired remote controller, and

then set the data of CODE No. [5d] to “0000” in

“Setup of external static pressure” on this page.

– 124 –

n Change of lighting time of filter sign

n How to set up power saving mode

SAVE

According to the installation condition, the lighting

time of the filter sign (Notification of filter clean-

ing) can be changed.

1. Push

button for at least four seconds

when the air conditioner is not working.

flashes. Indicates CODE No. “C2.”

Follow to the basic operation procedure

2. Select an indoor unit to be set by pushing

UNIT LOUVER

→

(1 2

3 4 5 6 ).

(left side of the button).

^{• For the CODE No. in Procedure}3, specify [01].

• For the [Set data] in Procedure 4, select the

setup data of filter sign lighting time from the

following table.

Each time you push the button, unit numbers

change as follows:

Unit No.

1-1

Unit No.

1-2

Unit No.

1-3

Setup data

0000

Filter sign lighting time

None

Unit No.

1-4

0001

150H

2500H (At shipment from factory)

5000H

0002

The fan of the selected unit runs.

0003

3. Adjust the power save setting by pushing

0004

10000H

TIME

buttons. Each push of the

button changes the power level by 1% within

the range from 100% to 50%.

* The factory setting is 75%.

n To secure better effect of heating

• This indication may not be true for types

other than 4-series outdoor unit.

When it is difficult to obtain satisfactory heating

due to installation place of the indoor unit or

structure of the room, the detection temperature

of heating can be raised.

Also use a circulator, etc. to circulate heat air

near the ceiling.

Follow to the basic operation procedure

→

⁽1 2

→

3 4 5 6 ).

• For the CODE No. in Procedure 3, specify [06].

• For the set data in Procedure 4, select the

setup data of shift value of detection tempera-

ture to be set up from the table below.

Setting of power level

in power saving mode

Setup data

0000

Detection temp shift value

SET

4. Determine the setting by pushing

button.

No shift

TEST

5. Push

button to complete the setting.

0001

+1°C

0002

+2°C (At shipment from factory)

0003

+3°C

+4°C

+5°C

+6°C

0004

0005

0006

– 125 –

12-4. Outdoor Unit

12-4-1. Refrigerant Recovery Control

The “ozone destruction coefficient” of HFC refrigerant is 0 and the discharge regulation is set as anathermal

effect gas.

To this model, a switch which can perform the refrigerant recovery (pump down) by the outdoor unit is mounted

so that it is easy to react against the environment at reinstalling or rejection time.

[Operation method]

<SP56>

1) See the mode of the indoor unit to fan mode.

2) Push the refrigerant recovery switch (SW802) of the outdoor unit for approx. 2 seconds.

The cooling operation starts. (This operation finishes after 10 minutes.)

3) After operation for 3 minutes or more, close the valve at liquid side.

4) After recovering refrigerant, close the valve at gas side.

5) When keeping pushed the refrigerant recovery SW again for approx. 2 seconds, the outdoor unit stops.

6) Stop the indoor unit and then turn off the power supply.

Sub SW P.C. board of

model with 3HP or below

SW802

Refrigerant recovery

SW801

Exchange

to Cooling

only

Existing

piping

Power saving

Sub SW P.C. board

NOTE

The electric portion of the refrigerant recovery SW on the sub-board

is electrified, therefore be careful to an electric shock.

W804: All OFF (As initial status)

SW801: Push for 1 second.

<SP80>

1) Set the mode of the indoor unit to fan mode.

2) Set all DIP switch SW804 to OFF (Initial status) and then push

the button switch SW801 for approx. 1 second.

The D805 (Green LED)

flashes.

The cooling operation starts.

(During this time, D805 (Green LED) flashes.)

D800

D801

D802

D803

D804

D805

This operation finishes by 10 minutes.

3) After operation for 3 minutes or more, close valve at liquid side.

4) After recovery of refrigerant, close valve at gas side.

5) Push the button switch SW801 again for approx. 1 second.

The outdoor unit stops.

6) Stop the indoor unit and then turn off the power supply.

– 126 –

12-4-2. Various Setting on Outdoor Unit (Existing piping, Power save, Cooling-only, etc.)

The following settings are available by DIP switch setup and jumper line setup.

<SP56>

Function

Setting position

Control contents

Existing piping

setup

Turn off the switches. (Ø19.1 existing pipes cannot be used.)

SW801

When using the power saving function, turn on switches.

The control to lower the compressor frequency (approx. -10%) is performed

by indoor heat exchanger temp. in heating operation.

Power save

setup

Existing pipe setting

Power saving setting

Cooling only setting

When using the outdoor unit as a cooling-only machine, turn on switches.

(“OF” of DN cord on the remote controller also can be used for changing the

machine to the cooling-only model.)

Cooling-only

setup

<SP80>

Function

Set position

Control contents

Turn the switch to ON when mounting a duct to the discharge port of the

outdoor unit. Add 3 taps to the upper limit value of the outdoor fan tap.

The operation is performed with

(Max: Upper fan: 890 rpm / Lower fan: 910 rpm (WF)).

High static

pressure setup

SW802

In this case, the upper limit value of static pressure for duct is 5Pa or less on

25°C degrees and please use straight duct.

High static pressure setup

Existing piping setup

Power save setup

In this case, the outdoor noise level may increase.

Turn the switch to ON when Ø19.1 is used for the existing pipe.

Existing

piping setup

In this case, the heating capacity may lower according to outside temp. and

indoor temp. in heating operation.

Snow-proof fan control

Turn the switch to ON when using the power save function.

Power save

setup

The control to lower the compressor frequency (Approx. –10%) is performed

by indoor heat exchanger temp. in heating operation.

∗ all are OFF at shipment.

When snow enters from clearance of the fan guard or heat exchanger into

blast path and it is accumulated, the control to prevent generation of motor

lock is validated.

Snow-proof

fan control

When outside temp. is below 0°C though the compressor stops, the outdoor

fan operates with W5.

The defrost interval is cut to shorten it than the standard status.

Defrost

time change

J805, J806

For contents of control and cutting method, refer to Section

9-1-10. Defrost control.

When it is needed to lower the maximum value of the compressor frequency,

cut the jumper line. Max. frequency at cooling/heating is lowered.

In this case the Max. capacity decreases.

Max. frequency of compressor

Max. frequency

change

J807

RAV-SP80

Model

COOL

HEAT

Standard status

When J807 is cut

72.0

99.6

72.0

79.2

When using the air conditioner as a cooling-only conditioner, cut the jumper

line. (An air conditioner can be changed to cooling-only conditioner by “0F” of

DN code on the remote controller.)

Cooling-only

setup

J808

– 127 –

12-4-3. Service Support Function (LED Display, Switch Operation)

1. Outline

A various setup and operation check can be performed by DIP switches at 3 positions (SW802, SW803,

SW804) and the pushdown button switches (SW800, SW801) at 2 positions.

Operation part

Part No.

SW800

SW803

SW801

SW804

SW802

Specifications

Pushdown button switch

DIP switch

Operation contents

Exchanges the displayed contents of LED (D800 to D804) on the outdoor

control P.C. board.

Pushdown button switch

DIP switch

Performs the specific operation to check maintenance.

Performs various initial settings. (Refer to 12-4-2.)

DIP switch

Display part

Part No.

Specifications

Operation contents

Indoor/Outdoor communication (Serial communication) signal display

(Receive signal from indoor signal)

D502

Orange LED

Indoor/Outdoor communication (Serial communication) signal display

(Send signal from outdoor signal)

D503

Green LED

Yellow LED

Error display

When all SW803 are OFF, or when any of D800 to D804 goes on, LED

displays that the outdoor controller detects an error.

D800 to D804

When status of SW803 is other than OFF, various indications are displayed.

Power-ON display

When the power of the outdoor unit is turned on, LED goes on.

When SW801 and SW804 operate the specific operation, LED flashes.

D805

Green LED

∗ All LED are colorless when it goes off.

SW804 Specific operation switch

SW801 (Various operations during maintenance check operation)

SW800

LED display select switch

SW803

D800 (Yellow LED)

D801 (Yellow LED)

D802 (Yellow LED)

D803 (Yellow LED)

D804 (Yellow LED)

Error display / various display

D800

D801

D802

D803

D804

D805

D805 (Green LED) : Display while power is ON

D503 (Green LED) : Serial signal (Outdoor → Indoor)

D502 (Orange LED) : Serial signal (Indoor → Outdoor)

SW802 : Selection of various initial settings

– 128 –

2. Selection of LED display (SW800, SW803 operation)

1) Display selection list

The displayed contents of LED D800 to D804 on the outdoor control P.C. board can be exchanged by

operation of SW803.

Switch

Function / Contents

Refer

Error display (Error generating at present)

Error generating at present is displayed.

Refer to

Page 130.

SW803

This switch goes off when an error does not generate.

Error display (The latest error: Latest error including present)

Refer to

Page 130.

After error status was cleared, the error which generated before

can be confirmed by this setting. (Reconfirmation is available

even if power supply was turned off once.)

SW803

• If an error generates at present, the same contents as those of

error which is generating at present are displayed.

• Only error of TO sensor is not displayed by this setting.

(Confirm it by setting of error which is generating at present.)

Temperature sensor display

Refer to

Page 131.

SW803

The detected value of temperature sensor is displayed.

SW803

TCJ

SW803

Current display

Refer to

Page 131.

SW803

The current value which flows in the outdoor unit is displayed.

Compressor operation frequency display

Refer to

Page 131.

The operation frequency of the compressor is displayed.

PMV opening display

Refer to

Page 131.

The opening of PMV (Pulse Motor Valve) is displayed.

– 129 –

2) Error display

The error which is generating at present and the latest error (Latest error information including present)

can be confirmed by lighting LED D800 toD804 on the outdoor control P.C. board.

a) When all DIP switch SW803 are OFF, the status of error which is generating at present is displayed.

b) <1> only of DIP switch SW803 is turned on, the error which generated before

(Latest error information including present) is displayed.a)

c) If there is an error, any of LED D800 to D804 goes on. (Display 1)

d) When pushing the pushdown button switch SW800 for approx. 1 second, the display is exchanged.

(Display 2)

e) When pushing SW800 again or after 2 minutes, the status returns to that of Display

(Legend)

Present error

Latest error

SW803

D800 (Yellow)

D801 (Yellow)

D802 (Yellow)

D803 (Yellow)

D804 (Yellow)

D805 (Green)

: Go on,

: Flash

l ^{: Go off,}

Display 1)

Display 2)

Wired remote controller

Error code

Error contents

(Initial display) (SW800 operation)

Normal

—

F04

lllll

Discharge temp. sensor (TD) error

Heat exchanger temp. sensor (TE) error

Heat exchanger temp. sensor (TL) error

Outside temp. sensor (TO) error

Suction temp. sensor (TS) error

Heat sink temp. sensor (TH) error

Heat exchanger sensor (TE, TS) miswiring

EEPROM error

ll ll

F06

¥¥

F06, F07

F08

¥¥¥

¥ ¡

lll l

¡¡

F06, F12

F13, L29

F06, F15

F31, L29

H01

¥¥ ¡

¥ ¥¥ ¡

l l

¥¥¥¥ ¡

¥¥¥¥¥¡

Compressor break down

llll

Compressor lock

H02

l lll

¡ ¡¡

ll l

Current detection circuit error

Case thermostat operation

Model unset

H03

¥¥

lll

H04, P04

L10, L29

L29

ll ll

¥ ¥ ¡

l l l

Communication error between MCU

Other error (Compressor disorder, etc.)

Discharge temp. error

¡¡ ¡¡

¥ ¥¥¥¡

Error is not determined.

P03

¥¥¥¥¥¡

¥¥

lll

Power supply error

P04, P05

P07, L29

P15, L29

P19, L29

P04, P20

P22

¥ ¥

l ll

Heat sink overheat error

¥¥¥

Gas leak detection

¥¥¥¥ ¡

4-way valve reverse error

¡¡¡ ¡¡

¥¥

¥¡

High pressure protective operation

Fan system error

¥ ¥¡

ll l

¥¥ ¥¡

Driving element short-circuit

Position detection circuit erro

P26

¥ ¥¥¡

l l

P29

¥ ¥¥¥¡

∗ As the error code displayed on the wired remote controller may differ according to type of indoor model, multiple

codes are described.

– 130 –

3) Sensor, current, compressor operation frequency, PMV opening display

The values detected by the controller, such as temperature sensor or current value are simply confirmed.

(Legend)

D800 (Yellow)

D801 (Yellow)

D802 (Yellow)

D803 (Yellow)

D804 (Yellow)

D805 (Green)

: Go on

l ^{: Go off,}

Temperature sensor (°C)

Compressor

operation

frequency

(rpm)

PMV

opening

(Pulse)

Current

(A)

SW803

Item

setup

SW803

TCJ

SW803

LED

display

Below –25

–25 to –21

–20 to –16

–15 to –11

–10 to – 5

–5 to –1

0 to 4

0 to 0.9

1 to 1.9

0 to 4

5 to 9

0 to 19

20 to 39

40 to 59

60 to 79

80 to 99

100 to 119

120 to 139

140 to 159

160 to 179

180 to 199

200 to 219

220 to 239

240 to 259

260 to 279

280 to 299

300 to 319

320 to 339

340 to 359

360 to 379

380 to 399

400 to 419

420 to 439

440 to 459

460 to 479

480 to 499

500

lllll

llll

2 to 2.9

10 to 14

15 to 19

20 to 24

25 to 29

30 to 34

35 to 39

40 to 44

45 to 49

50 to 54

55 to 59

60 to 64

65 to 69

70 to 74

75 to 79

80 to 84

85 to 89

80 to 84

95 to 99

100 to 104

105 to 109

110 to 114

115 to 119

120 to 124

125 to 129

130 to 134

135 to 139

140 to 144

145 to 149

150 to 154

Over 155

l lll

3 to 3.9

¡¡

lll

4 to 4.9

ll ll

5 to 5.9

¡ ¡

l ll

6 to 6.9

¡¡

¡¡¡

5 to 9

7 to 7.9

10 to 14

15 to 19

20 to 24

25 to 29

30 to 34

35 to 39

40 to 44

45 to 49

50 to 54

55 to 59

60 to 64

65 to 69

70 to 74

75 to 79

80 to 84

85 to 89

90 to 94

95 to 99

100 to 104

105 to 109

110 to 114

115 to 119

Over 120

8 to 8.9

¡ ¡

lll l

9 to 9.9

¡ ¡

ll l

¡ ¡ ¡

l l l

10 to 10.9

11 to 11.9

12 to 12.9

13 to 13.9

14 to 14.9

15 to 15.9

16 to 16.9

17 to 17.9

18 to 18.9

19 to 19.9

20 to 20.9

21 to 21.9

22 to 22.9

23 to 23.9

24 to 24.9

25 to 25.9

26 to 26.9

27 to 27.9

28 to 28.9

29 to 29.9

30 to 30.9

Over 31

¡¡ ¡ ¡

l l

¡¡ ¡

¡ ¡¡ ¡

¡¡¡ ¡

¡¡¡¡ ¡

¡¡

llll

lll

l ll

¡¡

¡ ¡¡

ll l

¡ ¡ ¡¡

l l

¡¡ ¡¡

¡¡¡ ¡¡

¡¡¡

lll

l l

¡¡¡

—

¡ ¡¡¡

—

¡¡ ¡¡¡

¡¡¡¡

—

¡ ¡¡¡¡

¡¡¡¡¡

—

¡¡¡¡¡¡

Sensor error, unconnected

—

∗ As TD, TL and TH are sensors for high temperature, there is error at normal temperature or below position.

∗ For current value, the current for the outdoor unit only is displayed.

– 131 –

4) Specific operation for maintenance check (SW801, SW804)

The following specific operations for the maintenance check are performed by operation of SW801 or

SW804.

a) Select DIP switch SW804. (See table below)

b) Push the pushdown button switch SW801 for approx. 1 second.

c) The following functions start. While each function starts, LED D805 (Green) flashes.

d) When pushing the pushdown button switch SW801 again for approx. 1 second, when selecting

DIP switch SW804 or when the specified time of each function elapsed, each function stops and

LED D805 (Green) returns to the continuous lighting.

SW804

Operation when pushdown button switch SW801 is pushed

Refrigerant recovery operation

SW804

The outdoor unit performs cooling operation. The indoor unit does not work by this operation

alone. Therefore operate the fan beforehand. (Refer → 12-4-1. Refrigerant Recovery Control)

SW804

Indoor cooling test run demand

The cooling test run is performed. (→ Note 1)

Indoor heating test run demand

The heating test run is performed. (→ Note 1)

Fan motor forced operation

Drive the fan motor forcedly.

When pushing SW801 again or when 2 minutes elapsed, the

operation returns to the normal control.

(No operation especially)

[NOTE]

Although these operations can

be performed even during

operation, basically perform

operation while the unit stops.

PMV full open operation

If performing this operation

Open PMV (Pulse Motor Valve) fully.

during driving the unit, it is

dangerous because the

pressure may change suddenly.

When pushing SW801 again or when 2 minutes elapsed, the

operation returns to the normal control.

PMV full close operation

Close PMV (Pulse Motor Valve) fully.

When pushing SW801 again or when 2 minutes elapsed, the

operation returns to the normal control.

PMV middle opening operation

Set PMV (Pulse Motor Valve) to middle opening

(250 pulses).

When pushing SW801 again or when 2 minutes elapsed, the

operation returns to the normal control.

Note 1) Indoor cooling test run demand / Indoor heating test run demand

Only when combining with the following indoor unit, cooling/heating operation can be performed from the

outdoor unit.

Test run is available: Indoor unit of 4 series and after (RAV-SM

4UT-E etc.)

∗∗∗

Test run is unavailable: Indoor units other than the above-mentioned indoor units, or indoor units other

than above-mentioned indoor units are included in the twin connection.

Note 2) The forced test run by this setting cannot be cleared on the indoor remote controller.

Be sure to clear the test run by operation of the outdoor unit. (Push SW801 again for 1 second.)

– 132 –

SW804

Operation when pushdown button switch SW801 is pushed

4-way valve relay operation (For RY700, CN70 check)

Turn on 4-way valve power relay (RY700).

When pushing SW801 again or when 2 minutes elapsed, the

operation returns to the normal control.

SW804

[NOTE]

In case of model adopting the self hold valve

(RAV-SP1104AT-E, RAV-SP1404AT-E), the coil develops fever.

Therefore do not perform this operation as coil is connected.

SW804

Self-hold valve suction operation (Exchange to heating cycle)

(For RY700 RY701, RY705, CN701 check)

Turn on relay RY700, RY701, RY705.

(CN701 between

and

: Voltage=Approx. +198 to 380V)

„

This function works for 10 seconds and then is OFF.

SW804

Self-hold valve separation operation (Exchange to cooling cycle)

Turn on relay RY700.

(CN701 between 1) and 4): Voltage=Approx. –198 to 380V)

This function works for 10 seconds and then is OFF.

[CAUTION]

SV valve relay operation (For RY702, CN702 check)

Turn on SV valve relay (RY702).

When pushing SW801 again or when 2 minutes elapsed, the

operation returns to the normal control.

* For RAV-SP1104AT-E to RAV-SP1404AT-E, the part is not

mounted, so do not operate.

SW804

Although these operations can be

performed even during operation,

basically perform operation while

the unit stops.

If performing this operation during

driving the unit, it is dangerous

because the pressure may change

suddenly.

SW804

Heater output relay operation (For check RY703, CN703 check)

Turn on relay for option heater (RY703).

When pushing SW801 again or when 2 minutes elapsed, the

operation returns to the normal control.

Outside output relay operation (RY704, CN704)

Turn on relay for outside output (RY704).

When pushing SW801 again or when 2 minutes elapsed, the

operation returns to the normal control.

(No operation especially)

Relay operation change for outside output

[CAUTION]

Do not use this setting.

– 133 –

13. ADDRESS SETUP

13-1. Address Setup Procedure

When an outdoor unit and an indoor unit are connected, or when an outdoor unit is connected to each indoor

unit respectively in the group operation even if multiple refrigerant lines are provided, the automatic address

setup completes with power-ON of the outdoor unit.The operation of the remote controller is not accepted while

automatic address works. (Approx. 4 to 5 minutes)

Setup of line address of outdoor unit,

indoor unit address, and group address

Completion of cabling work

Do you arbitrarily set the

indoor unit address?

YES

(MANUAL)

Is refrigerant line 1 line?

YES

Is group control performed?

YES

(To AUTO address mode)

Do you change setting after

automatic setting at the first time?

YES

Connect one remote controller with

one indoor unit (1 : 1) tentatively with

communication cable.

Turn on power of outdoor unit.

After completion of address

setup, change is to arbitral

address/group manually.

Setup of automatic

address finishes within

4 to 5 minutes.

(

)

Set to all indoor units one by one.

(

)

END

• When the following addresses are not stored in the neutral memory (IC503) on the indoor P.C. board, a test

run operation cannot be performed. (Unfixed data at shipment from factory)

Item code Data at shipment

Setup data range

0001 (No. 1 unit) to 0064 (No. 64 unit)

Line address

0099

0001 (No. 1 unit) to 0064 (No. 64 unit)

Max. value of indoor units in the identical refrigerant line

Indoor unit address

0000 : Individual (Indoor units which are not controlled in a group)

0001 : Master unit (1 indoor unit in group control)

Group address

0099

0002 : Sub unit (Indoor units other than master unit in group control)

– 134 –

13-2. Address Setup & Group Control

Indoor unit No. : N - n = Outdoor unit line address N (Max. 30) - Indoor unit address n (Max. 64)

Group address : 0 = Single (Not group control)

1 = Master unit in group control

2 = Sub unit in group control

Master unit (= 1) : The representative of multiple indoor units in group operation sends/receives signals to/from

the remote controllers and sub indoor units.

(* It has no relation with an indoor unit which communicates serially with the outdoor units.)

The operation mode and setup temperature range are displayed on the remote controller LCD.

(Except air direction adjustment of louver)

Sub unit (= 2)

: Indoor units other than master unit in group operation

Basically, sub units do not send/receive signals to/from the remote controllers.

(Except errors and response to demand of service data)

Header unit (Representative unit) (Master Twin)

: This unit communicates with the indoor unit (follower) which serial-communicates with the

outdoor units and sends/receives signal (Command from compressor) to/from the outdoor

units as the representative of the cycle control in the indoor units of the identical line address

within the minimum unit which configures one of the refrigerating cycles of Twin.

Follower unit (Subordinate unit) (Sub Twin)

: Indoor units excluding the header unit in Twin

This unit communicates with (Header) indoor unit in the identical line address and performs

control synchronized with (Header) indoor unit.

This unit does not perform the signal send/receive operation with the outdoor units. :

No judgment for serial signal error.

13-2-1. System Configuration

1. Single

2. Twin

Outdoor

Indoor

1-1

Individual

1-1

1-2

Sub/Follower

(Master/Header)

Master/Header

Remote

controller

3. Single group operation

2-1

Sub/Header

1-1

Sub/Header

4-1

3-1

Sub/Header

8-1

Sub/Header

Master/Header

– 135 –

13-2-2. Automatic Address Example from Unset Address (No miswiring)

1. Standard (One outdoor unit)

1) Single

1-1

Individual

(Master/Sub)

2) Group operation (Twin, Triple operation)

(Multiple outdoor units = Miltiple indoor units only with serial communication)

2-1

Sub/Header

1-1

Sub/Header

1-2

3-1

3-2

3-3

Sub/Follower

Master/Header

Sub/Follower

Only turning on source power supply (Automatic completion)

• Header unit:

The header unit receives the indoor unit data (thermo status) of the follower (Without identical line

address & indoor/outdoor serial) and then finally controls the outdoor compressor matching with its own

thermo status.The header unit sends this command information to the follower unit.

• Follower unit:

The follower unit receives the indoor unit data from the header (With identical line address & indoor/

outdoor serial) and then performs the thermo operation synchronized with the header unit.

The follower unit sends own thermo ON/OFF demand to the header unit.

(Example)

No. 1-1 header unit sends/receives signal to/from No. 1-2 and No. 1-3 follower units.

(It is not influenced by the line 2 or 3 address indoor unit.)

– 136 –

13-2-3. Automatic Address Example from Unset Address (No miswiring)

1. Standard (One outdoor unit)

1) Single

2) Twin

3) Triple

(1-1)

(1-2)

(1-1)

1-2

(1-2)

(1-3)

1-1

Individual

1-2

Master/Header

1-1

1-3

1-1

Sub/Follower

Sub/Header

Master/Follower

Sub/Follower

(Master/Header)

Only turning on source power supply (Automatic completion)

2. Group operation

(Multiple outdoor units = Multiple indoor units with serial communication only, without twin)

2-1

Sub/Header

1-1

Sub/Header

3-1

8-1

Sub/Header

Master/Header

(Max. : 8 units)

Only turning on source power supply (Automatic completion)

3. Multiple groups operation

Single

Twin

Triple

2-1

Sub/Header

1-1

Sub/Header

2-3

3-1

Sub/Header

3-3

1-2

Sub/Follower

Master/Follower

Sub/Follower

2-1

1-1

1-2

3-1

3-2

3-3

Change is necessary

Manually change addresses of the multiple follower units simultaneously from the remote controller.

– 137 –

13-3. Remote Controller Wiring

• Strip off approx. 9 mm the wire to be connected.

• For single system, use non polarity, 2 core wire is used for wiring of the remote controller.

(0.5 mm² to 2.0 mm² wires)

• For the synchronous twin, triple system, use 2-core shield wire (Vinyl cord for microphone 0.5 to 2.0 mm²) to

conform to the EMC standard.

Wiring diagram

Terminal block for remote controller

wiring of indoor unit

Terminal block

Remote controller

unit

Remote controller wire

(Procured locally)

∗ For details of wiring/installation of the remote controller, refer to the Installation Manual enclosed with the

remote controller.

Remote controller

Remote controller wiring

Indoor side

Indoor/

Outdoor connecting wires

Outdoor side

220-240V~

– 138 –

13-4. Address Setup (Manual setting from remote controller)

In case that addresses of the indoor units will be

determined prior to piping work after cabling work

(Example of 2-lines cabling)

(Real line: Cabling, Broken line: Refrigerant pipe)

• Set an indoor unit per a remote controller.

• Turn on power supply.

Outdoor

Indoor

A B

Indoor

A B

Indoor

A B

Indoor

A B

Line address → 1

Indoor unit address → 1

Group address → 1

SET

TEST

A B

Push

buttons simultaneously

for 4 seconds or more.

Remote controller

For the above example, perform setting by

connecting singly the wired remote controller

without remote controller inter-unit cable.

(← Line address)

Using the temperature setup

set 12 to the item code.

buttons,

Group address

Individual : 0000

Master unit : 0001

Using timer time

buttons, set the line address.

In case of group control

Sub unit

: 0002

SET

Push

button. (OK when display goes on.)

(← Indoor unit address)

Using the temperature setup

buttons, set 13 to the item code.

Using timer time

buttons, set 1 to the line address.

SET

Push

button. (OK when display goes on.)

(← Group address)

Using the temperature setup

buttons, set 14 to the item code.

Using timer time

buttons, set 0000 to Individual, 0001 to Master unit, and 0002 to sub unit.

SET

Push

button. (OK when display goes on.)

TEST

button.

Setup completes. (The status returns to the usual stop status.)

TEMP.

ON / OFF

TIMER SET

TIME

FAN

SAVE

MODE

VENT

2, 5, 8

3, 6, 9

END 11

FILTER

RESET TEST

SET

SWING/FIX

UNIT LOUVER

4, 7, 10

1 2 3 4 5 6 7 8 9 10 11 END

– 139 –

13-5. Confirmation of Indoor Unit No. Position

1. To know the indoor unit addresses though position of the indoor unit body is recognized

• In case of individual operation (Wired remote controller : indoor unit = 1 : 1)

(Follow to the procedure during operation)

ON / OFF

Push

button if the unit stops.

button.

UNIT LOUVER

Push

Unit No. 1-1 is displayed on LCD.

TEMP.

ON / OFF

(It disappears after several seconds.)

TIMER SET

TIME

FAN

SAVE

MODE

VENT

Operation

The displayed unit No. indicate line address and

indoor unit address.

FILTER

RESET TEST

SET

SWING/FIX

UNIT LOUVER

(When other indoor units are connected to the

identical remote controller (Group control unit),

other unit numbers are also displayed every pushing

UNIT LOUVER

button.

END

1 2

2. To know the position of indoor unit body by address

• To confirm the unit No. in the group control

(Follow to the procedure during operation) (in this procedure, the indoor units in group control stop.)

The indoor unit numbers in the group control are

successively displayed, and fan, louver, and drain pump

of the corresponding indoor unit are turned on.

(Follow to the procedure during operation)

VENT

TEST

Push

4 seconds or more.

and

buttons simultaneously for

TEMP.

ON / OFF

TIMER SET

TIME

FAN

SAVE

MODE

VENT

• Unit No.

is displayed.

• Fans and louvers of all the indoor units in the

group control operate.

FILTER

RESET TEST

SET

SWING/FIX

UNIT LOUVER

Every pushing

button, the unit numbers

in the group control are successively dis-

played.

• The unit No. displayed at the first time indicates

the master unit address.

END

1 2 3

• Fan and louver of the selected indoor unit only

operate.

TEST

Push

button to finish the procedure.

All the indoor units in the group control stop.

– 140 –

Aiming in environmental preservation, it is strictly recommended to clean and maintain the indoor/outdoor units

of the operating air conditioning system regularly to secure effective operation of the air conditioner.

It is also recommended to maintain the units once a year regularly when operating the air conditioner for a long

time.

Check periodically signs of rust or scratches, etc. on coating of the outdoor units.

Repair the defective position or apply the rust resisting paint if necessary.

If an indoor unit operates for approx. 8 hours or more per day, usually it is necessary to clean the indoor/outdoor

units once three months at least.

These cleaning and maintenance should be carried out by a qualified dealer.

Although the customer has to pay the charge for the maintenance, the life of the unit can be prolonged.

Failure to clean the indoor/outdoor units regularly will cause shortage of capacity, freezing, water leakage or

trouble on the compressor.

Object

Part name

Contents of check

Contents of maintenance

Indoor

Outdoor

Heat exchanger

Fan motor

• Blocking with dust, damage check

• Audibility for sound

• Clean it when blocking is found.

• When abnormal sound is heard

• Clean with water if dirty

• Replace if any breakage

—

Filter

• Visual check for dirt and breakage

• Visual check for swing and balance

• Replace fan when swinging or

balance is remarkably poor.

• Check adhesion of dust and external

appearance.

Fan

• If a large dust adheres, clean it with

brush or water.

Suction/

Discharge grille

• Repair or replace it if deformation or

damage is found.

—

• Visual check for dirt and scratch

• Check blocking by dust and dirt of drain

water.

—

Drain pan

• Clean drain pan, Inclination check

• Cleaning/Coating with repair painting

—

Face panel, Louver

• Check dirt and scratch.

• Check rust and pealing of insulator

External appearance

• Coating with repair painting

• Check pealing and floating of coating film

– 141 –

14. DETACHMENTS

14-1. Indoor Unit

14-1-1. Slim DuctType

RAV-SM404SDT-E, RAV-SM454SDT-E, RAV-SM564SDT-E

No. Part name

Procedure

Remarks

REQUIREMENT

Be sure to put on gloves at working; otherwise an injury may be caused by parts, etc.

• Before replacement of the parts, be sure to stop operation of the air conditioner and turn off

switch of the breaker.

Air Filter

1. Detachment

[In case of sucking system from rear side]

1) Push knobs (3 positions) of the air filter hooks

Air filter

toward the arrow direction to remove the air

filter.

Push

2. Attachment

1) Insert the air filter surely into the hooking

grooves (4 positions) at the opposite side of the

hooks, and then fix it to the original position.

Hook

NOTE)

In case of sucking system from bottom side,

installation direction is determined. Install the air

filter so that hooks are aligned at discharge side.

[In case of sucking system from bottom side]

Air filter

Push

Hook

Plate inlet-A 1. Detachment

[In case of sucking system from rear side]

Plate inlet-B

1) Take off fixing screws while holding the plate

Plate inlet-B: 6 screws

inlet-A with hands to remove it.

(Sucking system from rear side: Ø4 × 10, 8 pcs)

(Sucking system from bottom side:

Ø4 × 10, 11 pcs)

2) Take off fixing screws while holding the plate

inlet-B with hands to remove it.

(Ø4 × 10, 6 pcs)

Plate inlet-A: 8 screws

NOTE)

Be careful that sheeting metal does not fall when

removing the plate inlet.

[In case of sucking system from bottom side]

Plate inlet-A: 11 screws

2. Attachment

1) Using the screws taken off in procedure 1. 2) of

, attach the plate inlets in order of B

→ A while holding them not to fall down.

Plate inlet-B: 6 screws

– 142 –

No. Part name

E-cover

Procedure

Remarks

1. Detachment

1) Perform work 1. of

2) Take off screws fixing E-cover, and then

remove hooks of the hooking part by lifting up.

(Ø4 × 10, 2 pcs)

2. Attachment

1) Hang on E-cover to hooks of the hooking part

so that it does not fall down.

E-cover

NOTE)

Be sure not to catch TA sensor in the E-cover;

otherwise the equipment cannot operate correctly.

2) Using the screws taken off in procedure 1. 2) of

, attach E-cover while holding it with hands

without clearance.

2 screws

Hooking part

NOTE)

TA sensor

If there is clearance, dust may enter in the electric

parts box.

E-cover

E-box

1. Detachment

Clamp

1) Perform works 1. of

and 1. of

2) Remove clamps and tie wrap at upper part of

the photo. (Drain pump incorporated model: 3

positions)

Tie wrap

(Natural drain model: 2 positions)

3) Take off screws fixing E-box. (Ø4 × 10, 2 pcs)

E-box does not fall down under condition that

screws are taken off.

4) Remove the E-box over sheeting metal which

was fixed with screws.

2. Attachment

1) Insert hooks of E-box into the hooking part of

the main body.

Drain pump

Lead wire:

2 screws

2) Store E-box as before, and then attach it by

For only drain pump incorporated model

using screws taken off in procedure 1. 3) of

NOTE)

Be sure to fix surely as before the lead wires of

which clamps and tie wrap were taken off.

NOTE)

Check that lead wires of the drain pump do not

reach the fan so that they are not caught in the

fan, and then fix them.

(In case of drain pump incorporated model)

– 143 –

No.

Part name

Procedure

Remarks

P.C. board

assembly

1. Detachment

P.C. board assembly

1) Perform works 1. of

, 1. of

, and 1. of

2) Disconnect connectors which are connected

from P.C. board assembly to other parts.

NOTE)

Unlock the lock of the housing to disconnect the

connectors.

CN41 : Remote controller terminal (2P: Blue)

Remote controller terminal block: 2P

CN67 : Power supply terminal (3P: Black)

CN101 : TC sensor (2P: Black)

CN102 : TCJ sensor (2P: Red)

CN333 : Fan motor power supply (5P: White)

Terminal block

CN334 : Detection of fan motor position (3P: White)

(In case of drain pump incorporated model)

CN34 : Float SW (3P: Red)

CN504 : Drain pump lead (2P: White)

3) Unlock the lock of the card edge spacer, and then remove P.C. board assembly.

2. Attachment

1) Attach P.C. board assembly to the card edge spacer.

2) Using wires connect connectors as before, which were disconnected in

procedure 1. 2) of

NOTE)

Check there is no missing or poor contact of the connectors.

Multi blade fan case, 1. Detachment

fan lower case,

1) Perform work 1. of

Hanging hook

fan upper case

2) Take off hanging hooks at both sides of the

lower fan case to remove fan lower case.

3) Remove the upper fan case while taking off

hooks of fan upper case which are hooked to

the partition board.

4) Loosen hexagonal hole screw of the multi

blade fan to remove multi blade fan from the

shaft. If necessary, remove multi blade fan

and then remove fan upper case.

Fan lower case

2. Attachment

1) Determine the position so that multi blade fan

positions at the center of the fan upper case,

and then fix it with hexagonal hole screw.

Multi blade fan

NOTE)

Arrange the multi blade fan so that screws

position at the right side against the drain pan

assembly.

NOTE)

Fix multi blade fan with torque wrench 4.9 N•m

or more.

Drain pan

assembly side

2) Hook the lower fan case as before and attach

it with hooks.

NOTE)

Arrange the multi blade fan so that

screws position at the right side

against the drain pan assembly.

Finally check whether the multi blade fan turns

surely and smoothly or not.

– 144 –

No. Part name

Fan motor

Procedure

Remarks

1. Detachment

1) Perform works 1. of

, 1. of

, and 1. of

2) Remove lead wires which are connected to the

following connectors of P.C. board assembly.

NOTE)

Unlock locks of the housing, and then remove the

connectors.

CN333 : Fan motor power supply (5P: White)

CN334 : Detection of fan motor (3P: White)

Remove tie wrap which fixes lead wires.

3) Remove the noise filter from lead wire to detect fan

motor position.

4) Take off screws of fan motor fixing bracket.

Earth wires of the motor are tightened together.

(Ø5 × 10, 2 pcs)

Remove tie wrap which fixes the lead wires.

5) Remove fixing bracket of the fan motor by holding it

with hands so that the fan motor does not fall down.

Earth lead

2. Attachment

1) Mount the fan motor as before in order, Fan motor

→ Fixing bracket of fan motor → Noise filter → Lead wire process → E-cover.

NOTE)

Check there is no missing or poor contact of the connectors. Check also that the multi blade fan

turns surely and smoothly, and check together-tightening of motor earth.

Under panel 1. Detachment

Drain cap or drain hose

Drain pan

1) Take off the drain cap and drain the drain water

assembly

accumulated in the drain pan assembly.

In case of natural drain model, drain the drain water

by taking off hose band and drain hose.

NOTE)

When taking off drain cap and drain hose, be sure

receive drain water in a bucket, etc.

2) Take off screws fixing the under panel while holding it

to remove. (Ø4 × 10, 8 pcs)

Underr panel

NOTE)

Be careful that sheeting metal does not fall when

removing the under panel.

3) Pull out the drain pan assy. by holding handle at lower

part.

NOTE)

When pulling out the drain pan assy, never pull out the

drain socket by drawing it with hands. If doing so, water

leak may be caused.

Drain pann asseembly

4) Pull out it to some extent, lay hand on the bump at

suction side, and then remove the drain pan assembly.

NO GOOD

2. Attachment

Never hold and pull

the drain socket.

1) Hook and attach the drain pan assy. to the flange at

discharge side, and then push in.

2) Using screws taken off in procedure 1. 2) of

attach under panel by holding with hands.

3) Attach drain cap, hose band, and drain hose as

before, which were taken off in procedure 1. 1) of

NOTE)

Finally, be sure to check there is no water leakage from

each attached part.

– 145 –

No. Part name

Procedure

Remarks

Drain pump, 1. Detachment

Float switch,

Drain hose

1) Perform works in procedures 1. of

, 1. of

Drain hose

1. of

Hose band

2) Disconnect lead wires which are connected to

the following connectors of P.C. board assembly.

Drain pump

NOTE)

Unlock locks of the housing to remove the

connectors.

CN34 : float SW (3P: Red)

CN504 : Drain pump lead (2P: White)

3) Loosen hose band, remove cap of the drain

hose, and take off screws while holding drain

pump. Remove them with care that pipes are

not damaged. (Ø4 × 10, 3 pcs)

4) Take off screws while holding metal on float

switch.

Float switch

Remove them with care so that pipes are not

damaged. (Ø4 × 10, 1 pc)

NOTE)

If the pipes are damaged, refrigerant leak may be caused. Take out them with great care.

2. Attachment

1) Attach ASSY sheeting metal which was removed in procedure 1. 3) of

pipes are not damaged, and then fix it with screws.

with care that

2) Insert the drain hose into the inlet of drain pump, and then fix it with hose band. Arrange

handle of the hose band at contrary side of heat exchanger side and at direction remote from

drain pan assembly.

3) Carry out wiring as before, and then perform work of procedure 2. of

NOTE)

Finally check whether they correctly operate or not.

Evaporator

assembly

1. Detachment

1) Recover refrigerant, and then remove refriger-

ant pipes at indoor unit side.

2) Perform works of procedures 1. of

, 1. of

, 1.

Remove sensors.

3) Take off screws of the pipe holder, and remove

the pipe holder. (Ø4 × 10, 2 pcs)

4) Take off screws of the heat exchanger support

board (Pipe side), and remove the heat

exchanger support board

(Pipe side). (Ø4 × 10, 4 pcs)

Pipe holder

5) Take off screws of the heat exchanger support

board (Opposite side) which fixes terminal

block of the evaporator assembly.

(Ø4 × 10, 2 pcs)

Heat exchanger support board

(Pipe side)

6) Remove the evaporator assembly.

2. Attachment

1) Fasten the parts as before in order, Evaporator

assembly → Pipe holder → Set sensors

→ Drain pan assembly → Under panel.

2) Connect the refrigerant pipe as before, and

then perform vacuuming.

– 146 –

14-2. Outdoor Unit

14-2-1. RAV-SP404AT-E, RAV-SP404ATZ-E, RAV-SP404ATZG-E

RAV-SP454AT-E, RAV-SP454ATZ-E, RAV-SP454ATZG-E

No. Part name

Procedure

Remarks

Common

procedure

CAUTION

Valve

cover

Never forget to put on the gloves at working

time, otherwise an injury will be caused by

the parts, etc.

1. Detachment

1) Stop operation of the air conditioner, and

turn off the main switch of the breaker for

air conditioner.

2) Remove the valve cover.

(ST1T Ø4 × 8L, 1 pc.)

• After removing screw, remove the valve

cover pulling it downward.

Wiring

cover

3) Remove wiring cover

(ST1T Ø4 × 8L, 2 pcs.), and then remove

connecting cable.

4) Remove the upper cabinet.

(ST1T Ø4 × 8L, 5 pcs.)

• After taking off screws, remove the

upper cabinet pulling it upward.

2. Attachment

Upper cabinet

1) Attach the waterproof cover.

CAUTION

Be sure to attach a waterproof cover.

If it is not attached, there is a possibility that

water enters inside of the outdoor unit.

Water-proof

cover

Cord clamp

2) Attach the upper cabinet.

(ST1T Ø4 × 8L, 5 pcs.)

• Hook the rear side of the upper cabinet

to claw of the rear cabinet, and then put

it on the front cabinet.

Rear cabinet

3) Perform cabling of connecting cables, and

fix with cord clamp.

(ST1T Ø4 × 8L 3 pcs.)

4) Attach the wiring cover.

(ST1T Ø4 × 8L, 2 pcs.)

5) Attach the valve cover.

(ST1T Ø4 × 8L, 1 pc.)

Claw

• Insert the upper part of the upper

cabinet, set hooking claw of the valve

cover to the slit (at three positions) of

the main body, and then attach it

pushing upward.

– 147 –

No. Part name

Front cabinet 1. Detachment

Procedure

Remarks

Motor support

1) Perform work of item 1 of

2) Remove screws (ST1T Ø4 × 8L, 2 pcs.) of

the front cabinet and the inverter cover.

3) Take off screws of the front cabinet and

the bottom plate. (ST1T Ø4 × 8L 3 pcs.)

4) Take off screws of the front cabinet and

the motor support.

(ST1T Ø4 × 8L, 2 pcs.)

• The left side of the front side if made to

insert to the rear cabinet, so remove it

pulling upward.

For single-phase type models,

also take off this screw

Front cabinet

3. Attachment

Front cabinet (Left side)

1) Insert hook at the left side of the front side

into the rear cabinet.

2) Hook the lower part at the right side of the

front to concavity of the bottom plate.

Insert the hook of the rear cabinet into the

slit of the front cabinet.

Slit

Claw

3) Attach the removed screws to the original

positions.

Slit

Hook

Cord clamp

Front cabinet

Concavity at

bottom plate

Lower

slit

– 148 –

No. Part name

Procedure

Remarks

Inverter

assembly

1. Detachment

Screws

1) Perform work of item 1 of

2) Take off screws of the upper part of the front

cabinet.

• If removing the inverter cover under this

condition, P.C. board can be checked.

Front cabinet

• If there is no space in the upper part of the

upper cabinet, perform work of

Inverter cover

CAUTION

Be careful to check the inverter because high-

voltage circuit is incorporated in it.

3) Perform discharging by connecting

–

polarities by discharging resistance (approx.

100Ω, 40W) or plug of soldering iron to

–

terminals of the C14 (printed as “CAU-

TION HIGH VOLTAGE”) electrolytic capaci-

tor (500µF) of P.C. board.

Cord clamp

WARNING

The electrolytic capacitor may not normally

discharge according to error contents and the

voltage may remain. Therefore, be sure to

discharge the capacitor.

Screws

WARNING

Plug of

soldering iron

For discharging, never use a screwdriver and

Discharging

position

others for short-circuiting between

and

–

(Discharging

period

electrodes. As the electrolytic capacitor is one

with a large capacity, it is very dangerous

because a large electric spark will occur.

10 seconds

or more)

4) Take off screws (ST1T Ø4 × 8L, 2 pcs.)

fixing the main body and the inverter box.

Inverter

assembly

5) Remove various lead wires from the holder

at upper part of the inverter box and wiring

holder at right side of the terminal block.

6) Remove the lead wire from the bundled part

at left side of the terminal block.

7) Pull the inverter box upward.

8) Disconnect connectors of various lead

wires.

REQUIREMENT

As each connector has a lock mechanism,

avoid to remove the connector by holding the

lead wire, but by holding the connector.

Remove the connectors

with locking function by

pushing the part indicated

by the arrow mark.

– 149 –

No.

Part name

Procedure

Remarks

Control P.C.

board assembly

1) Disconnect lead wires and connectors

connected from the control P.C. board

assembly to other parts.

1. Lead wires

Take off

earth screws.

• Connection with the power terminal

block: 3 wires (Black, White, Orange)

• Earth wire: 1 wire (Black)

2. Connectors

Power line

• Connection with compressor:

Remove 3P connector.

• Connection with reactor:

Inverter box

(Metal sheet)

Remove the relay connectors from

P08, 11 (2P, White) and P30, 31

(2P, Yellow)

Control P.C.

board assembly

P.C. board base

CN300 : Outdoor fan (3P, White)

CN701 : 4-way valve (3P, Yellow)

CN600 : TE sensor (2P, White)

CN601 : TD sensor (3P, White)

CN603 : TS sensor (3P, White)

CN602 : TO sensor (3P, White)

CN500 : Case thermo. (2P, White)

CN700 : PMV (6P, White)

Hooking claws

(4 positions)

2) Remove the inverter box (Metal plate).

3) Remove the control board assembly

from P.C. board base.

(Remove the heat sink and the control

board assembly as they are screwed.)

Control P.C.

board assembly

NOTES:

1. CN300 and CN701, etc. at the control

board assembly side are connectors with

locking function.

P.C. board base

Therefore, remove the connector while

pushing the part indicated by an arrow

mark.

2. Remove 4 hooking claws of P.C. board

base, and remove upward the heat sink

with hands.

4) Take off 3 screws fixing the heat sink

and main control board assembly side,

and replace the board with a new one.

NOTE:

Heat sink

Inverter box

(Metal sheet)

When mounting a new board, check that the

board is correctly set in the groove of the

base holder of P.C. board base.

Attach the P.C. board so that the heat sink

comes securely contact with the metal sheet.

– 150 –

No. Part name

Procedure

Remarks

Rear cabinet 1) Perform works of items 1 of

and

2) Take off fixed screws for the bottom plate.

(ST1T Ø4 × 8L, 3 pcs.)

3) Take off fixed screws for the heat exchanger.

(ST1T Ø4 × 8L, 2 pcs.)

Rear cabinet

4) Take off fixed screw for the valve mounting

plate. (ST1T Ø4 × 8L, 1 pc.)

Fan motor

1) Perform works of items 1 of

and

2) Take off the flange nut fixing the fan motor

and the propeller.

Flange nut

• Turning it clockwise, the flange nut can be

loosened. (To tighten the flange nut, turn

counterclockwise.)

3) Remove the propeller fan.

4) Disconnect the connector for fan motor from

the inverter.

5) Take off the fixing screws (2 pcs.) holding by

hands so that the fan motor does not fall.

Loosen the nut by

turning clockwise

NOTE:

Tighten the flange nut with torque 4.9Nm

(50kgf/cm).

Propeller fan

Fan

motor

– 151 –

No. Part name

Procedure

Remarks

Compressor 1) Perform works of items 1 of

and

Partition plate

2) Discharge refrigerant gas.

3) Remove the partition plate.

(ST1T Ø4 × 8L, 3 pcs.)

4) Remove the noise-insulator.

5) Remove the terminal covers of the

compressor, and disconnect lead wires

of the compressor and the compressor

thermo assembly from the terminal.

6) Remove pipes connected to the

compressor with a burner.

Compressor

lead

CAUTION

Pay attention to that flame does not

involve 4-way valve or PMV. (If doing

so, a malfunction may be caused.)

Case thermo

7) Take off the fixing screws of the bottom

plate and heat exchanger.

(ST1T Ø4 × 8L)

Heat exchanger

8) Take off the fixing screws of the valve

clamping plate to the bottom plate.

(ST1T Ø4 × 8L, 2 pcs.)

Remove

(Discharge pipe)

9) Pull upward he refrigerating cycle.

Remove

(Suction pipe)

Screw

10) Take off nut fixing the compressor to

the bottom place.

Valve

support board

Screws (2 pcs.)

CAUTION

Compressor bolt (3 pcs.)

When reconnecting the lead wires to

the compressor terminals after

replacement of the compressor, be

sure to caulk the Faston terminal

without loosening.

Reactor

1) Perform works of item 1 of

2) First take off two screws

and

Partition

plate

Reactor

support board

Reactor

(ST1T Ø4 × 8L) of the reactor fixed to

the reactor support.

3) Remove the reactor support from the

partition plate. (ST1T Ø4 × 8L, 4 pcs.)

4) Take off two screws (ST1T Ø4 × 8L)

directly attached to the partition plate.

– 152 –

No.

Part name

Procedure

Remarks

Pulse Motor Valve 1. Detachment

(PMV) coil

1) Perform works of items

and

2) Release the coil from the concavity by

turning it, and remove coil from the PMV.

2. Attachment

1) Put the coil deep into the bottom posi-

tion.

2) Fix the coil firmly by turning it to the

concavity.

PMV coil

Fan guard

1. Detachment

Minus screwdriver

1) Perform works of items 1 of

and

2) Remove the front cabinet, and put it

down so that fan guard side directs

downward.

CAUTION

Perform works on a corrugated cardboard,

cloth, etc. to prevent flaw on the product.

3) Remove the hooking claws by pushing

with minus screwdriver along with the

arrow mark in the right figure, and

remove the fan guard.

Front cabinet

Hooking claw

Front cabinet

2. Attachment

1) Insert claws of the fan guard in the hole

of the front cabinet. Push the hooking

claws (10 positions) with hands and then

fix the claws.

CAUTION

All the attaching works have completed.

Check that all the hooking claws are fixed

to the specified positions.

Fan guard

– 153 –

14-2-2. RAV-SP804AT-E, RAV-SP804ATZ-E, RAV-SP804ATZG-E

No. Part name

Procedure

Remarks

Common

procedure

Front panel

CAUTION

Be sure to put on the gloves at working time;

otherwise an injury may be caused by a part,

etc.

1. Detachment

1) Stop operation of the air conditioner and then

turn off switch of the breaker.

2) Remove the front panel.

(Hexagonal screw Ø4 × 10, 2 pcs.)

∗ After removing screws, remove the front

panel while pulling it downward.

3) Remove the power wire and indoor/outdoor

connecting wire from the cord clamp and the

terminals.

Top plate

4) Remove the top plate.

(Hexagonal screw Ø4 × 10, 5 pcs.)

2. Attachment

1) Attach the top plate.

(Hexagonal screw Ø4 × 10, 5 pcs.)

In this time, insert the fin guard of rear side

between the top plate and the heat exchanger

(Rear side).

2) Connect the power supply wire and the

indoor/outdoor connecting wire to the terminal

and fix it with cord clamp.

Insert the fin guard of rear side between

the top plate and the heat exchanger

(at rear side).

CAUTION

Using bundling band on the market, be sure to

fix the power wire and indoor/outdoor

connecting wire along the crossover pipe so that

they do not come to contact with the

compressor, valve at gas side, pipe at gas side

and discharge pipe.

3) Attach the front panel.

(Hexagonal screw Ø4 × 10, 2 pcs.)

– 154 –

No. Part name

Procedure

Remarks

Discharge

port cabinet

1. Detachment

Heat exchanger

Discharge port cabinet

1) Carry out work of 1 of

Motor base Partition plate

2) Remove screws for the discharge port cabinet

and the partition plate.

(ST1T Ø4 × 8, 3 pcs.)

3) Remove screws for the discharge port cabinet

and the bottom plate.

(Hexagonal screw Ø4 × 10, 2 pcs.)

4) Remove screws of the discharge port cabinet

and the motor base. (ST1T Ø4 × 8, 2 pcs.)

5) Remove screws of the discharge port cabinet

and the heat exchanger.

(ST1T Ø4 × 8, 1 pc.)

6) Remove screws of the discharge port cabinet

and the fin guard.

(Hexagonal screw Ø4 × 10, 2 pcs.)

Fin guard

Side cabinet 1) Carry out work of 1 of

Inverter assembly

Side cabinet

2) Remove screws which fix the inverter assembly

and the side cabinet. (ST1T Ø4 × 8, 2 pcs.)

3) Remove screws of the side cabinet and the valve

fixing plate. (ST1T Ø4 × 8, 2 pcs.)

4) Remove screws of the side cabinet and the pipe

panel (Rear).

(Hexagonal screw Ø4 × 10, 2 pcs.)

5) Remove screws of the side cabinet and the

bottom plate. (Hexagonal screw Ø4 × 10, 1 pc.)

6) Remove screws of the side cabinet and the heat

exchanger. (Hexagonal screw Ø4 × 10, 3 pcs.)

7) Slide the side cabinet upward and then remove it.

(Hook of inverter)

Valve fixing plate

Piping panel (Rear)

– 155 –

No. Part name

Procedure

Remarks

Exchange of 1. Control P.C. board

electric parts

Compressor lead

1) Carry out work of 1 of

Relay connector:

2 positions

Control

P.C. board

(1 at rear side)

WARNING

Fan motor

Bundling band

(Reactor lead)

Never disassemble the inverter for 1 minute

after power has been turned off because an

electric shock may be caused.

2) Remove the connectors connected to the

control P.C. board.

(Indoor power supply, temperature sensors,

PMV coil, 4-way valve coil, compressor case

thermo, fan motor)

Compressor

case thhermo

∗ Unlock the lock of the housing part and

then remove the connectors.

Temperaature

sensor

Reactor lead wires

(White,Charcoal gray)

3) Remove the lead wires connected to the

control P.C. board.

(Torque at tightening time: 1.47 ± 0.1N•m)

Compressor lead

Earth wire

U: CN200

V: CN201

W: CN202 Black

Red

White

4-way valvve coil

PMV coil

Indoor power supply

Reactor lead

Screw for fixing P.C. board

Relay connector: 2 positions

Remove the power wire from the power

supply terminal block.

(Torque at tightening time: 2.5 ± 0.1N•m)

4) Remove the earth wire from the control P.C.

board. (Truss B tight screw Ø4 × 6, 1 pc.)

5) Remove the fixing screws of the control P.C.

board.

Screw for fixing element (7 positions)

Power suppply teerrminall block

(Screw with collar for fixing element Ø3 × 16,

7 pcs. Pan S tight screw for fixing P.C. board

Ø3 × 20, 1 pc.)

6) Remove the control P.C. board.

(Supporter: 5 positions)

NOTE:

It is difficult to take out it because of radiator

grease for heat sink.

7) Mount a new control P.C. board.

NOTE:

Control P.C. board Insulating sheet (Q300)

Aluminum plate (Q201)

Do not forget to attach the aluminum plate (Q201)

and the insulating sheet (Q300).

(Applying a little of radiator grease at the rear

surface of the insulating sheet in advance to

adhere to the heat sink makes easy the work.)

Radiator

grease

– 156 –

No. Part name

Exchange of 1. Reactor

Procedure

Remarks

Reactor relay connector

(Connected to lead wire

(White) at P.C. board side)

electric parts

(Continued)

1) Carry out works of 1 of

and

2) Remove the relay connector connected to

the control P.C. board.

3) Cut off the bundling band binding the

compressor lead and the relay connector.

4) Remove each reactor.

(Truss B tight screw Ø4 × 6, 2 pcs. each)

5) Attach a new reactor.

NOTE:

Be sure to bind the removed bundling band with

the bundling band on the market.

Be careful that the fan motor lead does not come

to contact with the reactor body.

Reactor relay connector

(Connected to lead wire

(Charcoal gray) at P.C. board side)

Fan motor lead

Bundling band

(Compressor lead, reactor lead)

Upper reactor

Connected to reactor relay connector

(Connected to lead wire (White)

at P.C. board side)

Bundling band

Lower reactor

Connected to reactor relay connector

(Connected to lead wire (Charcoal gray)

at P.C. board side)

– 157 –

No. Part name

Procedure

Remarks

Fan motor 1) Carry out works of 1 of

and

Propeller fan

Loosened by

turning clockwise

2) Remove the flange nut fixing the fan motor and the

propeller fan.

∗ The flange nut is loosened by turning clockwise.

(To tighten it, turn it counterclockwise.)

3) Remove the propeller fan.

4) Remove the connector for fan motor from the

inverter.

5) Remove the fan motor lead from the fan motor

lead fixing rubber of the penetrated part of the

partition plate.

Flange nut

Propeller fan

6) Remove the fixing screws (4 pcs. each) while

supporting the fan motor so that it does not fall.

✻ Cautions when assembling the fan motor

∗ Tighten the flange nut with 4.95N•m

(50kgf.cm).

∗ Adjust length on the fan motor lead fixing

rubber so that the fan motor lead does not

slacken in order not to put the fan motor lead

into contact with the propeller fan.

Attach the fan motor lead fixing rubber to the

partition plate so that projection directs to the

refrigerating cycle side.

Fan motor

Fan motor connector

∗ Be sure that the rector body does not come to

contact with the fan motor lead.

∗ Be sure to bind the removed bundling band

with the bundling band on the market.

CAUTION

Use the metal band of the motor base to fix the

fan motor lead on the motor base so that the fan

motor lead does not come to contact with the

propeller fan.

Inverter

Fan motor lead fixing rubber

Projection/Refrigerating cycle side

Fan motor

– 158 –

No.

Part name

Procedure

Remarks

Compressor

Compressor lead

1. Removal of broken compressor

Piping pannel (Rear)

1) Recover the refrigerant gas.

2) Carry out works of 1 of

and

3) Remove the piping panel (Front).

Remove screws of the piping panel

(Front) and the bottom plate.

(Hexagonal screw Ø4 × 10, 2 pcs.)

Pipingg paneel (Front)

Remove screws of the piping panel

(Front) and the piping panel (Rear).

(Hexagonal screw Ø4 × 10, 1 pc.)

Bundlinng band

for heat proof

Pipe cover

4) Remove the piping panel (Rear).

TD sensor

Remove screws of the piping panel

(Rear) and the bottom plate.

(Hexagonal screw Ø4 × 10, 2 pcs.)

5) Remove the valve fixing plate.

Remove bolts of the valve.

(Hexagonal screw Ø6 × 15, 4 pcs.)

Compressor

lead

Remove screws of the valve fixing plate

and the partition plate.

(ST1T Ø4 × 8, 1 pc.)

Comprressor

case tthermo

Remove screws of the valve fixing plate

and the accumulator.

(ST1T Ø4 × 8, 1 pc.)

TS sensor

Pipe coover,

bundlinng band

Cut off the bundling band for the dis-

charge pipe and the suction pipe and

then remove each sensor and coil lead

of PMV.

6) Remove the sound insulating plate.

(Upper side, outer winding, inner winding)

Suction pipe

Accumulator

Discharge pipe

7) Remove terminal cover from the

compressor and then remove the

compressor lead and also the

compressor case thermo.

8) Remove TD sensor fixed to the

discharge pipe.

Pipe cover, bundling band,

9) Remove the compressor lead.

(Leave the ferrite core attached to the

electric parts box as it is.)

each sensor (TL, TO, TE, TD, TTSS sseennssoorrss))

PMV coil lead

Black pipe cover for heat proof,

bundling band for heat proof,

each sensor (TL, TO, TE, TD, TS sensors)

PMV coil lead

Control P.C. board

U : CN200

V : CN201

W : CN202

Red

White

Black

Control

P.C. board

(Tightening torque: 1.47 ± 0.1N•m)

Comprressor

lead

Compressor lead

Ferrite core

– 159 –

No.

Part name

Procedure

Remarks

Compressor

Compressor lead

(Continued)

10) Using a burner, remove the discharge

pipe and the suction pipe connected to

the compressor.

Remove

(Discharge pipe)

Remove

(Suction pipe)

WARNING

In case of removing the piping by broiling

the welded part with a burner, if the piping

includes oil, it may burst into flames at the

moment when wax melted, so take

sufficient care.

CAUTION

Note so that the flame does not catch the

4-way valve and PMV.

(An operation may become an error.)

11) Pull off the discharge pipe and the

suction pipe of the refrigerating cycle

upward.

Compressor bolt

(3 pcs.)

12) Remove the compressor bolts which fix

the compressor to the bottom plate.

(3 pcs.)

13) Pull out the compressor toward you.

CAUTIONX

The weight of the compressor is 15kg or

more, so handle it by 2 workers.

– 160 –

Compressor lead

itte

No.

Part name

Procedure

Remarks

Compressor

Compressor lead

(Continued)

2. Mounting of compressor

1) Mount the compressor in the reverse

procedure of removal.

with the commpressor

lead wire by 4 times.

NOTES:

Ferrite core

∗ After exchange of the compressor, be sure to

exchange the compressor lead. (Repair part

code of compressor lead: 43160591)

0 to 50

(Positiooning

standard of

compreessor

lead wire)

In this time, wrap the ferrite core with the

compressor lead wire by 4 times.

Using bundling band on the market, bind the

compressor lead. As the compressor lead is

long, be sure that the compressor lead does

not contact with the discharge pipe.

Using the bundling band on the market,

fix the bundle at 2 positions.

Pass the soundproof platee (outer wwinding)

through betwween the ssuctionn ppipe and

the accumulator.

∗ Fix the removed each sensor and PMV coil

lead wire to the discharge pipe and the

suction pipe with the bundling band via the

pipe cover.

Suctioon pipe

Accumulator

In this time, take note that each sensor and

PMV coil lead wire do not come to contact

with the discharge pipe and the reactor.

(For fixing to the discharge pipe, use the

black heat-proof pipe cover and the bundling

band for heat-proof which is sold on the

market.)

Discharrge pipe

Headeer pipe

∗ As shown in the right figure, mount the

soundproof plate (inner winding, outer

winding) by inserting between the compres-

sor and the piping, and between piping and

the partition plate.

Pass the soundproof plate

(inner windinng) thrrough

betweeen commppressoor and

discharrge pipee, suctiion pipe

and thenn put itt on thee other

side att thiss pposition.

∗ Put the compressor lead wire and the

compressor case thermo between inner

winding and outer winding of the soundproof

as if dropping them in.

Put the soundproof plate

(outer winding) on the

other side at this position.

Soundproof plate

(upper)

Pipe cover, bundling band, TS sensor

Discharrge pipe

Soundproof plate

(outer wwinding)

Do not make clearance between

the soundproof plate (upper) and

the soundproof plate (outer winding).

Black heat-proof pipe cover and

heat-proof bundling band,

each sensor (TL, TO, TE, TD, TS sensor)

PMV coil lead wire

Set each sensor so that it does not

come to contact with the discharge pipe.

Suction pipe

PMV coil lead

Pipe cover, bundling band,

each sensor (TL, TO, TE, TS sensor)

PMV coil lead

– 161 –

No.

Part name

Procedure

Remarks

Compressor

3. Vacuuming

Compressor lead

(Continued)

1) Connect the vacuum pump to the charge

port of the gas pipe valve and then drive

the vacuum pump.

2) Carry out vacuuming until the vacuum

low pressure gauge indicates 1 (mmHg).

NOTE:

Before vacuuming, open PMV fully. If PMV is

closed, vacuuming may be impossible between

the liquid pipe valve and PMV of the outdoor unit.

SW804

SW801

Forced full-opening method of PMV

∗ Turn on the leakage breaker.

∗ Turn on 1 and 3 of DIP SW804 on the control

P.C. board of the outdoor unit.

∗ Keep pushing SW801 on the control P.C. board

of the outdoor unit for 1 second or more.

∗ After pushing SW801 for 1 second or more,

turn off the leakage breaker within 2 minutes.

4. Refrigerant charging

1) Add the quantity of refrigerant specified

by the pipe length into the charge port of

the valve.

PMV coil

1. Detachment

PMV coil

1) Carry out works of 1 of

and

2) While pulling the coil upward and

removing the spring which pinches the

copper pipe, remove the coil from PMV

main body.

2. Attachment

1) Match the spring to the copper pipe and

fix it.

Spring

PMV main body

– 162 –

No.

Part name

Procedure

Remarks

Fan guard

3. Detachment

Bell mouth

Discharge port cabinet

1) Carry out works of 1 of

and

CAUTION

To prevent scratching on the product, handle

the product on a cardboard or cloth.

2) Remove the discharge port cabinet and

then put on it so that the fan guard side

directs downward.

3) Remove the hooking claws (8 positions) of

the fan guard.

Fan guard

Hooking claw

2. Attachment

1) Push the hooking claws (8 positions) with

hands from the front side to fix the claws.

CAUTIONX

Check that all the hooking claws are fixed at

the specified positions.

– 163 –

15. EXPLODED VIEWS AND PARTS LIST

15-1. Indoor Unit

15-1-1. RAV-SM404SDT-E, RAV-SM454SDT-E, RAV-SM564SDT-E

220

206, 209

208

217

208

204

232

222

216

219

205

228

201

230

204

227

229

212

214

207

213

213, 218, 224

225, 226, 231

236

235

234

237

233

TEST

SETTING

ADR

– 164 –

Model Name RAV-SM

Location

No.

Part No.

Description

404SDT-E

454SDT-E

564SDT-E

201

203

205

206

207

208

211

212

213

214

216

217

218

219

220

221

222

224

225

226

227

228

229

230

231

232

233

234

235

236

237

4312C040 Motor, Fan

43120227 Fan, Multi blade

43170244 Hose, Drain

4314J402 Refrigeration Cycle Ass’y

43122084 Case, Fan, Lower

43122085 Case, Fan, Upper

43100319 Plate, Inlet-B

43172183 Pan Ass’y, Drain

43149351 Socket

43179129 Cap, Drain

43170240 Hose, Drain

43100321 Flange

43049697 Bonnet

43179135 Band, Hose

43180327 Air Filter, ABS PP

43079249 Band, Hose

43196109 Bushing

43047685 Nut, Flare, 1/4 IN

43047688 Nut, Flare, 1/2 IN

43149353 Socket, 1/2 IN

43060029 Filter, Noise

43151287 Switch, Float

43100320 Plate, Inlet-A

43177012 Pump, Drain, MDP-1401

43147195 Bonnet, 1/2 IN

43019904 Holder, Sensor SUS

431S8088 Owner’s Manual

43166011 Remote controller, SX-A4EE

43166004 Remote controller, SX-A11JE2

43166006 Remote controller, WH-H1JE2

43166012 Remote controller, SX-A5EE

– 165 –

<E-parts assembly>

404

403

405

401

402

Model Name RAV-SM

Location

No.

Part No.

Description

404SDT-E

454SDT-E

564SDT-E

401

402

403

404

405

43050425 Sensor Ass’y, Service TC (F6)

43050426 Sensor, Service

43160565 Terminal, Block, 3P, AC250V, 20A

43160568 Terminal, 2P, AC30V/DC42V, 1A

4316V368 P.C. Board Ass’y, 220–240V, MCC-1570

– 166 –

15-2. Outdoor Unit

15-2-1. RAV-SP454AT-E, RAV-SP454ATZ-E, RAV-SP454ATZG-E

16, 17

18, 19

12, 14

10, 26, 32

13, 15

– 167 –

Model Name RAV-SP

Location

No.

Part No.

Description

404AT-E 404ATZ-E 404ATZG-E 454AT-E 454ATZ-E 454ATZG-E

43105042 Cabinet, Front, RoHs

43105041 Cabinet, Upper

43005698 Cabinet, Side, Right, RoHs

43005672 Cabinet, Side, Left

4301V035 Guard, Fan

4301V053 Guard, Fin

43100346 Base Ass’y, RoHs

43119471 Caver, Valve, Packed

43162055 Caver, Wiring Ass’y, RoHs

Compressor, DA150A1F-20,

43041786

RoHs

4314G246 Condenser Ass’y, RoHs

4314G247 Condenser Ass’y, RoHs

4314G248 Condenser Ass’y, RoHs

37546845 Valve, Packed, 6.35

43146680 Valve, Packed, 12.7

43147196 Bonnet, 1/4 IN

43147195 Bonnet, 1/2 IN

43046444 Valve, 4-WAY, STF-0108Z

Coil, Solenoid,

43146722

STF-01A J502E1

43146695 Valve, Pulse, Modulating (PMV)

37546849 Coil, PMV, CAM-MD12TF-6

43055521 Reactor

4302C068 Motor, Fan, ICF-140-43-4R

43020329 Fan, Propeller, PJ421

43047669 Nut, Flange

43197164 Nut, Flange, SUS304-WSB

43032441 Nipple, Drain

43089160 Cap, Waterproof

43050407 Thermostat, Bimetal

43063339 Holder, Sensor (TO)

43049749 Rubber, Cushion

43063321 Holder, Sensor, 4-8, 9.52

43063322 Holder, Sensor, 6-11.4, 12.7

43063325 Holder, Sensor, 6-6.35, 8

43063317 Holder, Thermostat

4314Q064 Muffler, 1/2

– 168 –

705

707

712

710

706

711

Model Name RAV-SP

404AT-E 404ARZ-E 404ATZG-E 454AT-E 454ATZ-E 454ATZG-E

Location

Part No.

No.

Description

701

702

703

704

705

706

707

708

710

711

712

43050422 Sensor, TE

43050423 Sensor, TS

43050427 Sensor, TO

43050430 Sensor, TD

43062228 Base, P.C.board

43160566 Terminal, Block 6P, 20A

4316V293 P.C. Board Ass’y, SW, MCC-1530

4316V367 P.C.board Ass’y, MCC-5009

43160571 Fuse, Holder, 250V, 15A

43160590 Fuse, AC250V, 6.3A

43158192 Reactor

– 169 –

15-2-2. RAV-SP564AT-E, RAV-SP564ATZ-E, RAV-SP564ATZG-E

– 170 –

Model Name RAV-SP

Location

No.

Part No.

Description

564AT-E

564ATZ-E

564ATZG-E

43105042 Cabinet, Front

43105041 Cabinet, Upper

43005698 Cabinet, Side, Right

43005672 Cabinet, Side, Left

4301V088 Guard, Fan

4301V053 Guard, Fin

43100346 Base Ass’y

43119471 Cover, Valve, Packed

43162055 Cover, Wiring Ass’y

43041644 Compressor, DA150A1F-21F

4314Q064 Muffler

4314G281 Condenser Ass’y

4314G282 Condenser Ass’y

4314G283 Condenser Ass’y

37546845 Valve, Packed, 6.35

43146680 Valve, Packed, 12.7

43147195 Bonnet, 1/2 IN

43147196 Bonnet, 1/4 IN

43046445 Valve, 4-Way, STF-0213Z

43146722 Coil, Solenoid, STF-01AJ502E1

43146695 Valve, Pulse, Modulating, CAM-B30YGTF-2

43046487 Coil, PMV, CAM-MD12TF-12

43058277 Reactor, CH-57-Z-T

4302C068 Motor, Fan, ICF-140-43-4R

43020329 Fan, Propeller, PJ421

43047669 Nut, Flange

43197164 Nut, Flange

43032441 Nipple, Drain

43089160 Cap, Waterproof

43050407 Thermostat, Bimetal

43063339 Holder, Sensor TO

43042485 Rubber, Cushion

43063321 Holder, Sensor

43063322 Holder, Sensor

43063325 Holder, Sensor

43063317 Holder, Thermostat

43107256 Plate, Fix, Valve, Packed

4301V080 Plate, Fix, Valve, Packed

43148205 Accumulator Ass’y

43148214 Accumulator Ass’y

43039392 Base, Motor

43039394 Base, Motor

– 171 –

Model Name RAV-SP

Location

Part No.

No.

Description

564AT-E

564ATZ-E

564ATZG-E

701

702

703

704

705

706

707

708

710

711

712

43050422 Sensor, TE

43050423 Sensor, TS

43050427 Sensor, TO

43050430 Sensor, TD

43062228 Base, P.C.board

43160566 Terminal block, 6P, 20A

4316V293 P.C. board Ass’y, SW, MCC-1530

4316V384 P.C. board Ass’y, MCC-5009

43160571 Fuse, Holder, 15A, 250V

43160590 Fuse, 6.3A, 250V AC

43158192 Reactor, CH-43-Z-T

– 172 –

15-2-3. RAV-SP804AT-E, RAV-SP804ATZ-E, RAV-SP804ATZG-E

30, 31, 32

7, 38

28, 29

4, 26

9, 10, 36

6, 27

8, 39, 40

25, 37

– 173 –

Model Name RAV-SP

Location

No.

Part No.

Description

804AT-E

804ATZ-E

804ATZG-E

43019904 Holder, Sensor

43032441 Nipple, Drain

43041798 Compressor, DA220A2F-22L

43046493 Coil, PMV, CAM-MD12TF-15

43046451 Valve, 4-Way, STF-0218G

43047246 Bonnet, 3/8 IN

43047669 Nut, Flange

43049739 Cushion, Rubber

43050407 Thermostat, Bimetal

43063317 Holder, Thermostat

43100437 Panel, Front, Piping

43100438 Panel, Back, Piping

43100440 Plate, Roof

43100452 Panel, Side

43100453 Panel, Air outlet

43100454 Panel, Flont

43100455 Base Ass’y

43107276 Hanger

43107277 Guard, Fin, Back

43107278 Guard, Fin, Side

43109422 Guard, Fan

43120224 Fan, propeller, PB521

43122113 Bell mouth

4312C042 Motor, Fan, ICF-280-A60-1

43146686 Valve, Packed, 9.52

43146695 Valve, Pulse, Modulating, CAM-B30YGTF-2

43146724 Valve, Ball, SBV-JA5GTC-1

43148232 Accumulator, Ass’y, 1.8L

43148233 Accumulator, Ass’y, 1.8L

4314G278 Condenser Ass’y

4314G279 Condenser Ass’y

4314G280 Condenser Ass’y

4314N024 Coil, Valve, 4-Way, VHV-01AP552B1

4314Q031 Strainer, DIA 9.52

4314Q056 Strainer, DIA 25.4

43160591 Lead Ass’y, compressor

43194029 Bonnet

43197164 Nut, Flange

43197183 Bolt, Compressor

43197184 Bolt, Compressor

– 174 –

709, 710

711

704

707

706

708

705

1 2 3

703

702

701

712

713

Model Name RAV-SP

Location

Part No.

No.

Description

804AT-E

804ATZ-E

804ATZG-E

701

702

703

704

705

706

707

708

709

710

711

712

713

43050425 Sensor Ass’y, Ø6

43063325 Holder, Sensor (TE)

43150319 Sensor Ass’y, Ø4

43155188 Reactor, CH-56-2Z-T

43160565 Terminal block, 3P, 20A

43160581 Termonal,3P, 60A

43160589 Fuse, 10A, 250V AC

43163055 Holder, Sensor (TO)

43163059 Spacer, Bush

43163060 Spacer, Collar

4316V387 P.C.board Ass’y, MCC-1571

43063322 Holder, Sensor (TS)

43063321 Holder, Sensor (TD)

– 175 –

WARNINGS ON REFRIGERANT LEAKAGE

Important

Check of Concentration Limit

The room in which the air conditioner is to be

installed requires a design that in the event of

refrigerant gas leaking out, its concentration will

not exceed a set limit.

NOTE 2 :

The standards for minimum room volume are as follows.

1) No partition (shaded portion)

The refrigerant R410A which is used in the air

conditioner is safe, without the toxicity or combustibility of

ammonia, and is not restricted by laws to be imposed

which protect the ozone layer. However, since it contains

more than air, it poses the risk of suffocation if its

concentration should rise excessively. Suffocation from

leakage of R410A is almost non-existent. With the recent

increase in the number of high concentration buildings,

however, the installation of multi air conditioner systems

is on the increase because of the need for effective use

of floor space, individual control, energy conservation by

curtailing heat and carrying power etc.

Most importantly, the multi air conditioner system is able

to replenish a large amount of refrigerant compared with

conventional individual air conditioners. If a single unit of

the multi conditioner system is to be installed in a small

room, select a suitable model and installation procedure

so that if the refrigerant accidentally leaks out, its

concentration does not reach the limit (and in the event

of an emergency, measures can be made before injury

can occur).

2) When there is an effective opening with the adjacent

room for ventilation of leaking refrigerant gas (opening

without a door, or an opening 0.15% or larger than the

respective floor spaces at the top or bottom of the door).

Outdoor unit

Refrigerant piping

Indoor unit

3) If an indoor unit is installed in each partitioned room

and the refrigerant piping is interconnected, the

smallest room of course becomes the object.

In a room where the concentration may exceed the limit,

create an opening with adjacent rooms, or install

mechanical ventilation combined with a gas leak

detection device.

But when a mechanical ventilation is installed

interlocked with a gas leakage detector in the smallest

room where the density limit is exceeded, the volume

of the next smallest room becomes the object.

The concentration is as given below.

Total amount of refrigerant (kg)

Min. volume of the indoor unit installed room (m³)

≤ Concentration limit (kg/m³)

Refrigerant piping

Outdoor unit

The concentration limit of R410A which is used in multi

air conditioners is 0.3kg/m³.

Very

small

Indoor unit

room

Small

room

Medium

room

Large room

Mechanical ventilation device - Gas leak detector

NOTE 1 :

If there are 2 or more refrigerating systems in a single

refrigerating device, the amounts of refrigerant should be

as charged in each independent device.

NOTE 3 :

The minimum indoor floor area compared with the

amount of refrigerant is roughly as follows:

(When the ceiling is 2.7m high)

Outdoor unit

e.g., charged

e.g.,

amount (10kg)

charged amount (15kg)

Range below the

m²

density limit

of 0.3 kg/m³

(countermeasures

not needed)

Room A Room B Room C Room D Room E Room F

Indoor unit

Range above

the density limit

of 0.3 kg/m³

(countermeasures

needed)

For the amount of charge in this example:

The possible amount of leaked refrigerant gas in

rooms A, B and C is 10kg.

The possible amount of leaked refrigerant gas in

rooms D, E and F is 15kg.

Total amount of refrigerant

TOSHIBA CARRIER CORPORATION

23-17, TAKANAWA 3 CHOME, MINATOKU, TOKYO, 108-8580, JAPAN

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