Toshiba Air Conditioner Rav Sm452mut E User Manual

FILE NO. A06-005

Revised: Jun, 2008

SERVICE MANUAL

AIR-CONDITIONER

SPLIT TYPE

INDOOR UNIT

RAV-SM402MUT-E

RAV-SM452MUT-E

RAV-SM562MUT-E

This Service Manual describes contents of the new indoor unit.

For the outdoor unit, refer to the Service Manual with FILE NO. A05-001 and A07-003.

R410A

PRINTED IN JAPAN, Jun, 2008 ToMo

7. CONTROL BLOCK DIAGRAM................................................................. 38

7-1. Indoor Control Circuit....................................................................................... 38

7-2. Control Specifications...................................................................................... 39

7-3. Indoor Print Circuit Board ................................................................................ 46

8. CIRCUIT CONFIGURATION AND CONTROL SPECIFICATIONS........... 47

8-1. Indoor Control Circuit....................................................................................... 47

9. TROUBLESHOOTING.............................................................................. 49

9-1. Summary ofTroubleshooting........................................................................... 49

9-2. Check Code List................................................................................................ 51

9-3. Error Mode Detected by LED on Outdoor P.C. Board .................................... 54

9-4. Troubleshooting Procedure for Each Check Code......................................... 55

10. REPLACEMENT OF SERVICE INDOOR P.C. BOARD ............................ 71

11. SETUP AT LOCAL SITE AND OTHERS .................................................. 75

11-1. Indoor Unit......................................................................................................... 75

11-2. Setup at Local Site / Others ............................................................................. 82

11-3. How to Set up Central Control Address Number ........................................... 86

12. ADDRESS SETUP.................................................................................... 87

12-1. Address Setup Procedure................................................................................ 87

12-2. Address Setup & Group Control...................................................................... 88

12-3. Address Setup (Manual Setting from Remote Controller)............................. 91

12-4. Confirmation of Indoor Unit No. Position ....................................................... 92

13. DETACHMENTS ....................................................................................... 93

13-1. Indoor Unit......................................................................................................... 93

14. EXPLODED VIEWS AND PARTS LIST .................................................. 101

14-1. Ceiling Panel ................................................................................................... 101

14-2. Compact 4-way Air Discharge CassetteType............................................... 102

– 3 –

1. SPECIFICATIONS

1-1. Indoor Unit

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

Indoor unit

RAV-

SM402MUT-E

SM452MUT-E

SM562MUT-E

Model

Outdoor unit

RAV- SP404AT(Z, ZG)-E SP454AT(Z, ZG)-E SP562AT(Z, ZG)-E

Cooling capacity

(kW)

3.6

4.0

5.0

5.6

Heating capacity

4.5

Power supply

1 phase 230V (220 – 240V) 50Hz

Running current

(A)

(kW)

(%)

5.05 – 4.63

5.82 – 5.33

6.6 – 7.15

Power consumption

1.00

1.19

1.53

Power factor

Cooling

3.60

3.27

EER

3.36

Energy efficiency class ∗

Energy rating ∗∗

5.0

4.5

Electrical

characteristics

Running current

(A)

(kW)

(%)

4.79 – 4.39

0.97

5.67 – 5.20

6.62 – 7.21

1.54

Power consumption

1.16

Power factor

Heating

COP

Energy efficiency class ∗

Energy rating ∗∗

4.12

3.88

3.64

5.5

5.0

4.5

Main unit

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

Standard air flow

Motor

H/M/L

(m³/min.)

(W)

11.0 / 9.2 / 7.8

13.3 / 11.2 / 9.1

Air filter

Long life filter

Controller (Sold separately)

Connecting pipe

Remote controller

Gas side

Liquid side

Drain port

H/M/L

(mm)

12.7

6.4

(mm)

VP25

Sound pressure level

Sound power level

(dB•A)

40 / 36 / 31

55 / 51 / 46

43 / 39 / 34

58 / 54 / 49

H/M/L

∗ : IEC standard, ∗∗ : AS standard

– 4 –

Indoor unit

RAV-

(kW)

SM562MUT-E

SM562AT-E

5.0

SM562MUT-E

SM563AT-E

5.0

Model

Outdoor unit

Cooling capacity

Heating capacity

Power supply

5.6

1 phase 230V (220 – 240V) 50Hz

Running current

Power consumption

Power factor

(A)

(kW)

(%)

7.02 – 7.75

1.61

3.11

Cooling

EER

Energy efficiency class ∗

Energy rating ∗∗

Running current

Power consumption

Power factor

4.0

Electrical

characteristics

(A)

(kW)

(%)

7.04 – 7.72

1.61

7.04 – 7.72

1.61

Heating

COP

3.48

Energy efficiency class ∗

Energy rating ∗∗

4.5

Main unit

Zinc hot dipping steel plate

Model

RBC-UM11PG (W)-E

Appearance

Ceiling panel

Moon-white

(Muncel 2.5GY 9.0/0.5)

(Sold separately)

Panel color

Height

Width

Depth

Height

Width

Depth

(mm)

(kg)

268

Main unit

575

Outer

dimension

700

Ceiling panel

(Sold separately)

700

Main unit

Total weight

Ceiling panel (Sold separately)

(kg)

Heat exchanger

Finned tube

Turbo fan

13.3 / 11.2 / 9.1

Fan

Fan unit

Standard air flow

Motor

H/M/L

(m³/min.)

(W)

Air filter

Long life filter

Remote controller

12.7

Controller (Sold separately)

Sound pressure level

Sound power level

H/M/L

(dB•A)

(mm)

H/M/L

6.4

Gas side

Liquid side

Drain port

VP25

Connecting pipe

43 / 39 / 34

58 / 54 / 49

∗ : IEC standard, ∗∗ : AS standard

– 5 –

Indoor unit 1

Indoor unit 2

Outdoor unit

RAV-

SM562MUT-E

SP1102AT(Z, ZG)-E

10.0

SM562MUT-E

SP1104AT(Z, ZG)-E

10.0

Model

RAV-

Cooling capacity

Heating capacity

(kW)

11.2

Indoor unit

Power supply

1 phase 230V (220 – 240V) 50Hz

Running current

Power consumption

Power factor

EER

(A)

(kW)

(%)

10.31 – 11.24

12.51 – 11.47

2.4

2.67

Cooling

4.17

3.75

Energy efficiency class ∗

Energy rating ∗∗

Running current

Power consumption

Power factor

—

Electrical

characteristics

(A)

(kW)

(%)

10.95 – 11.95

12.51 – 11.47

2.55

2.67

Heating

Fan

COP

4.39

4.19

Energy efficiency class ∗

Energy rating ∗∗

—

Turbo fan

Fan unit

Standard air flow H/M/L

Motor

(m³/min.)

(W)

13.3 / 11.2 / 9.1

Sound pressure level

Sound power level

H/M/L

(dB•A)

43 / 39 / 34

58 / 54 / 49

(dB•A)

Outdoor unit

Power supply

1 phase 230V (220 – 240V) 50Hz

7.5

Standard length

(m)

Min. length

Outer

Max. total length

dimension

Outdoor lower

Outdoor higher

Height

difference

Fan

Propeller fan

Fan unit

Standard air flow volume

Motor

(m³/min.)

(W)

125

101

63 + 63

100 + 100

Main

(mm)

15.9

12.7

9.5

Gas side

Sub

(mm)

Connecting

pipe

Main

(mm)

Liquid side

Sub

(mm)

6.4

Sound pressure level

Sound power level

Cooling/Heating

(dB•A)

49 / 51

66 / 68

49 / 50

66 / 67

∗ : EC standard, ∗∗ : AS standard

– 6 –

Indoor unit 1

Indoor unit 2

Outdoor unit

RAV-

SM562MUT-E

SM1102AT-E

10.0

SM562MUT-E

SM1103AT-E

10.0

Model

RAV-

Cooling capacity

Heating capacity

(kW)

11.2

Indoor unit

Power supply

1 phase 230V (220 – 240V) 50Hz

Running current

Power consumption

Power factor

EER

(A)

(kW)

(%)

14.96 – 16.32

3.52

Cooling

2.84

Energy efficiency class ∗

Energy rating ∗∗

Running current

Power consumption

Power factor

—

Electrical

characteristics

(A)

(kW)

(%)

13.35 – 14.56

3.14

Heating

Fan

COP

3.57

Energy efficiency class ∗

Energy rating ∗∗

—

Turbo fan

13.3 / 11.2 / 9.1

Fan unit

Standard air flow H/M/L

Motor

(m³/min.)

(W)

Sound pressure level

Sound power level

H/M/L

(dB•A)

43 / 39 / 34

58 / 54 / 49

(dB•A)

Outdoor unit

Power supply

1 phase 230V (220 – 240V) 50Hz

Standard length

(m)

7.5

Min. length

5.0

Outer

Max. total length

dimension

Outdoor lower

Outdoor higher

Height

difference

Propeller fan

Fan

Fan unit

Standard air flow volume

Motor

(m³/min.)

(W)

100

Main

(mm)

15.9

12.7

Gas side

Sub

(mm)

Connecting

pipe

Main

(mm)

9.5

Liquid side

Sub

(mm)

6.4

Sound pressure level

Sound power level

Cooling/Heating

(dB•A)

53 / 54

70 / 71

∗ : IEC standard, ∗∗ : AS standard

– 7 –

Indoor unit 1

Indoor unit 2

Indoor unit 3

Outdoor unit

RAV-SM562MUT-E

RAV-SM1603AT-E

14.0

Model

Cooling capacity

Heating capacity

(kW)

16.0

Indoor unit

Power supply

1 phase 230V (220 – 240V) 50Hz

Running current

(A)

(kW)

(%)

23.88 – 21.89

Power consumption

Power factor

4.99

Cooling

EER

2.81

Energy efficiency class ∗

Running current

Power consumption

Power factor

22.44 – 20.57

4.69

Electrical

characteristics

(A)

(kW)

(%)

Heating

Fan

COP

3.41

Energy efficiency class ∗

Turbo fan

13.3 / 11.2 / 9.1

Fan unit

Standard air flow H/M/L

Motor

(m³/min.)

(W)

Sound pressure level

Sound power level

H/M/L

(dB•A)

43 / 39 / 34

58 / 54 / 49

Outdoor unit

Power supply

1 phase 230V (220 – 240V) 50Hz

Standard length

(m)

7.5

5.0

Min. length

Outer dimension Max. total length

Outdoor lower

Outdoor higher

Height

difference

Fan

Propeller fan

103

Fan unit

Standard air flow volume

(m³/min.)

(W)

Motor

100 + 100

15.9

Main

(mm)

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)

51 / 53

68 / 70

∗ : IEC standard

– 8 –

1-2. Outdoor Unit

Model name

Outdoor unit

RAV-SP 562AT(Z)(ZG)-E 802AT(Z)(ZG)-E 1104AT(Z)(ZG)-E 1404AT(Z)(ZG)-E

1 phase 230V (220 – 240V) 50Hz

(Power exclusive to outdoor is required.)

Power supply

Type

Motor

Pole

Hermetic compressor

Compressor

(kW)

(kg)

3.75

Refrigerant charged

Refrigerant control

1.5

2.1

3.1

Pulse motor valve

Standard length

Max. total length

(m)

7.5

Inter

connecting pipe

Additional refrigerant charge

under long piping connector

20g/m

(21m to 50m)

40g/m

(31m to 50m)

40g/m

(31m to 75m)

40g/m

(31m to 75m)

Outdoor lower

Height

(m)

difference

Outdoor higher

Height

(mm)

795

900

320

795

900

320

1340

900

320

1340

900

320

Outer dimension Width

Depth

Appearance

Total weight

Heat exchanger

Fan

Silky shade (Muncel 1Y8.5/0.5)

(kg)

Finned tube

Propeller fan

Fan unit

Standard air flow

(m³/h)

(W)

101

103

100 + 100

15.9

Motor

100 + 100

15.9

Gas side

Liquid side

(mm)

(dB•A)

(°C)

12.7

6.4

15.9

9.5

Connecting pipe

9.5

Sound pressure level

Cooling/Heating

46 / 47

63 / 64

47 / 49

64 / 66

49 / 50

66 / 67

51 / 52

68 / 69

Sound power level

Outside air temperature, Cooling

Outside air temperature, Heating

43 to –15°C

(°C)

15 to –15°C

15 to –20°C

– 9 –

Model name

Outdoor unit

RAV-SP404AT(Z)(ZG)-E

RAV-SP454AT(Z)(ZG)-E

1 phase 230V (220 – 240V) 50Hz

Power supply

(Power exclusive to outdoor is required.)

Hermetic compressor

Type

Motor

Pole

Compressor

(kW)

(kg)

1.1

Refrigerant charged

Refrigerant control

1.0

Pulse motor valve

Standard length

Max. total length

(m)

7.5

Inter

connecting pipe

Additional refrigerant charge

under long piping connector

20g/m (21m to 30m)

Outdoor lower

Height

(m)

difference

Outdoor higher

Height

(mm)

550

780

290

550

780

290

Outer dimension Width

Depth

Appearance

Total weight

Heat exchanger

Fan

Silky shade (Muncel 1Y8.5/0.5)

(kg)

Finned tube

Propeller fan

Fan unit

Standard air flow

(m³/h)

(W)

Motor

Gas side

Liquid side

(mm)

(dB•A)

(°C)

12.7

6.4

12.7

6.4

Connecting pipe

Sound pressure level

Cooling/Heating

45 / 47

62 / 64

45 / 47

62 / 64

Sound power level

Outside air temperature, Cooling

Outside air temperature, Heating

43 to –15°C

15 to –15°C

(°C)

– 10 –

1-3. Operation Characteristic Curve

RAV-SM562MUT-E / RAV-SM562AT-E

• Conditions

Indoor : DB27˚C/WB19˚C

Outdoor : DB35˚C

Air flow : High

Pipe length : 7.5m

230V

• Conditions

Indoor : DB20˚C

Outdoor : DB7˚C/WB6˚C

Air flow : High

Pipe length : 7.5m

230V

60 70 80

100

80 90 100

Compressor speed (rps)

RAV-SM562MUT-E / RAV-SP562AT-E

• Conditions

Indoor : DB27˚C/WB19˚C

• Conditions

Indoor : DB20˚C

Outdoor : DB35˚C

Air flow : High

Pipe length : 7.5m

230V

Outdoor : DB7˚C/WB6˚C

Air flow : High

Pipe length : 7.5m

230V

40 50 60 70 80

100

60 70 80 90 100

Compressor speed (rps)

– 11 –

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)

– 12 –

1-4. Capacity Variation Ratio According toTemperature

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

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

105

100

120

110

100

• Conditions

Indoor : DB20˚C

Indoor air flow : High

Pipe length : 7.5m

Indoor : DB27˚C/WB19˚C

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)

RAV-SP562AT-E, RAV-SM563AT-E

120

110

100

105

100

• Conditions

Indoor : DB20˚C

• Conditions

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)

– 13 –

2. CONSTRUCTION VIEWS (EXTERNAL VIEWS)

2-1. Indoor Unit

200

595 to 660 Ceiling open dimension

1000 or more

Check port

(

450)

Check port

(ꢀ 450)

Check port

(

450)

Obustacle

Drain-up standing-up size

Indoor unit

1000 or more

Bottom face

of ceiling

Note)

As ABS is used for the drain discharge port of the main unit,

the vinyl chlor paste cannot be used.

Use the flexible hose (Band fix) included in the package.

Space required for

installation and servicing

• Wired remote controller

(RBC-AMT32E)

120

142

368.5

268

Bottom face

Knockout for flesh

air intake Ø100

of ceiling

145.5

220.5

700 Panel external dimension

595 to 660 Ceiling open dimension

525 Hanging bolt pitch

Drain discharge port

145.5

134

Hanging bolt

M10 or W3/8

local arrange

Bottom face

of ceiling

105 70

Ceiling panel

Ø162

Wiring

connection

port

Ø162

Refrigerant pipe

(Liquid) Ø6.4

320.5

575 Unit external dimension

Electric parts box

For branch duct knockout

square hole Ø150

70 105 93

139.5

For branch ductt

knockout square

hole Ø150

190.5

Refrigerant pipe

(Gas) Ø12.7

Bottom face of ceiling

– 14 –

RBC-TWP30E2, RBC-TWP50E2 (SimultaneousTwin)

Inner diameter Ø C

Inner

diameter Ø D

Inner

diameter Ø D

Model (RBC-)

Liquid side

Gas side

Ø9.5

Ø15.9

Ø9.5

Ø15.9

Ø6.4

TWP30E2

TWP50E2

Ø12.7

Ø9.5

Liquid side

Gas side

Ø15.9

– 15 –

RBC-TRP100E (SimultaneousTriple)

Header assembly

300

Inner diameter

Ø15.9

100

Branch pipe assembly

100

Inner diameter

Ø9.52

Insulator

Gas side socket

Liquid side socket

Ø15.9

Ø12.7

Ø9.5

Ø6.4

Ø15.9

Ø25.4

Ø9.5

Ø12.7

(External

diameter)

(External

diameter)

(External

diameter)

(External

diameter)

3 pcs.

1 pc.

3 pcs.

1 pc.

– 16 –

3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM

3-1. Indoor Unit

• Single type

(Combination of one indoor unit and

one outdoor unit)

Distributor

(Strainer

incorporated)

Indoor unit

TCJ sensor

Air heat

exchanger

TC sensor

Refrigerant pipe

at liquid side

Outer diameter Ø6.4

Refrigerant pipe

at gas side

Outer diameter Ø12.7

Heating time

Cooling time

To outdoor unit

• Twin type (Combination of two indoor units and one outdoor unit)

RAV-SM562MUT-E

Indoor A unit

Indoor B unit

Distributor

(Strainer

incorporated)

Distributor

(Strainer

incorporated)

TCJ sensor

Air heat

exchanger

Air heat

exchanger

TC sensor

Refrigerant pipe

at liquid side

Outer diameter Ø6.4

Refrigerant pipe

at liquid side

Outer diameter Ø6.4

Refrigerant pipe

at gas side

Outer diameter Ø12.7

Branch pipe

Refrigerant pipeat liquid side

Outer diameter Ø9.5

Refrigerant pipeat gas side

Outer diameter Ø15.9

Heating time

Cooling time

To outdoor unit

• Triple type (Combination of three indoor units and one outdoor unit)

RAV-SM562MUT-E

Indoor A unit

Indoor B unit

Indoor C unit

Distributor

(Strainer

incorporated)

Distributor

(Strainer

incorporated)

Distributor

(Strainer

incorporated)

TCJ sensor

Air heat

exchanger

Air heat

exchanger

Air heat

exchanger

TC sensor

Refrigerant pipe

at liquid side

Outer diameter

Ø6.4

at gas side

Outer diameter

Ø12.7

at liquid side

Outer diameter

Ø6.4

at gas side

Outer diameter

Ø12.7

at liquid side

Outer diameter

Ø6.4

at gas side

Outer diameter

Ø12.7

Distributor

Refrigerant

pipeat liquid side

pipeat gas side

Outer diameter Ø9.5

Outer diameter Ø15.9

Heating time

Cooling time

To outdoor unit

– 17 –

3-2. Outdoor Unit

RAV-SM562MUT-E / RAV-SP562AT-E

Packed valve

Outer dia. Ø12.7

Outer dia. Ø6.4

Modulating

(PMV)

Strainer

TS sensor

(SKV-18D26)

TO sensor

TD sensor

Strainer

4-way valve

(STF-0213Z)

Capillary

Ø3×Ø2×

L530

Muffler

sensor

Accumulator

(1500cc)

Ø25 × L210

Heat exchangerØ8

Ø25 × L160

Rotary compressor

1 row 30 stages

FP1.3 flat fin

(DA220A2F-20L)

Outdoor unit

R410A 1.5 kg

Cooling

Heating

Pipe surface temperature (°C)

Indoor/Outdoor

temp. conditions

(DB/WB) (°C)

Pressure

Compressor

revolutions per

second (rps)

Indoor heat Outdoor heat

Indoor

fan

Discharge

Suction

(MPa)

exchanger

(TD)

(TS)

(TC)

(TE)

Indoor Outdoor

∗

Standard

2.71

3.48

1.92

2.22

3.47

1.79

1.03

1.16

0.74

0.72

1.16

0.25

HIGH

LOW

HIGH

LOW

HIGH

27/19

32/24

18/15.5

20/–

35/–

43/–

Cooling Overload

Low load

–5/–

Standard

7/6

Heating Overload

Low load

–16

30/–

24/18

–20/(70%)

–18

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).

– 18 –

RAV-SM562MUT-E / RAV-SM562AT-E

Packed valve

Outer dia. Ø12.7

Outer dia. Ø6.4

PMV

(Pulse Motor Valve)

(CAM-B30YGTF-1)

TS sensor

TO sensor

2-step muffler

Ø19 .05 × 200L

TD sensor

Strainer

sensor

4-way valve

(STF-0108Z)

Muffler

Ø19 × L160

Heat exchanger Ø8 ripple,

2 rows, 14 steps

FP1.3 flat fin

Distributor

Rotary compressor

(DA150A1F-20F)

Outdoor unit

R410A 1.0 kg

Cooling

Heating

Pressure

Pipe surface temperature (°C)

Indoor/Outdoor

temp. conditions

(DB/WB) (°C)

Compressor

revolutions per

second (rps)

∗

Indoor heat Outdoor heat

Indoor

fan

(MPa)

(kg/cm²G) Discharge Suction

exchanger

(TD)

(TS)

(TC)

(TE)

Indoor Outdoor

Standard 3.50 0.97 35.7

9.9

HIGH

27/19

32/24

35/–

43/–

Cooling Overload 3.90 1.08 39.8 11.0

Low load 1.90 0.70 19.4

Standard 2.31 0.61 13.6

7.1

6.2

9.1

2.6

LOW 18/15.5

–5/–

HIGH

LOW

HIGH

20/–

28/–

15/–

7/6

Heating Overload 2.86 0.89 29.2

Low load 1.86 0.25 19.0

–14

24/18

–10/(70%)

–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).

– 19 –

RAV-SM402MUT-E / RAV-SP404AT-E

RAV-SM454MUT-E / RAV-SP454AT-E

Packed valve

Outer dia. Ø12.7

Outer dia. Ø6.4

PMV

TS sensor

(Pulse Motor Valve)

(CAM-B30YGTF-2)

TO sensor

2-step muffler

Ø19.05 × 200L

TD sensor

Strainer

4-way valve

(STF-0108Z)

sensor

Muffler

Ø19 × L160

Heat exchanger Ø8 ripple,

2 rows, 14 steps

FP1.3 flat fin

Distributor

Rotary compressor

(DA150A1F-20F)

R410A 1.0 kg

Cooling

Heating

RAV-SP404AT-E

Pressure

Pipe surface temperature (°C)

Indoor/Outdoor

temp. conditions

(DB/WB) (°C)

Compressor

Indoor heat Outdoor heat drive revolution Indoor

(MPa)

(kg/cm²g)

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

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

– 20 –

4. WIRING DIAGRAM

4-1. Indoor Unit

4-1-1. Compact 4-way CassetteType

TCJ

Connection interface (option)

(EXCT)

1 2

CN50

(WHI)

CN51

(RED)

1 2 3

CN80

(GRN)

1 2

CN73

(RED)

1 2

CN70

(WHI)

CN34

(RED)

CN104 CN102 CN101

(YEL) (RED) (BLK)

5 5

4 4

3 3

2 2

1 1

5 5

3 3

2 2

1 1

4 4

P.C.

Board

3 3

2 2

1 1

MCC-1402

5 5

4 4

3 3

2 2

1 1

LM1

LM2

1 2

CN40

(BLU)

CN33

(WHI)

CN60

(WHI)

U3 U4

Control P.C. Board for

Indoor Unit

5 5

4 4

3 3

2 2

1 1

5 5

4 4

3 3

2 2

1 1

5 5

4 4

3 3

2 2

1 1

Terminal for

central remote

controller

CN32

(WHI)

DC20V

DC15V

DC12V

DC7V

(FAN DRIVE)

Power

supply

circuit

CN61

(YEL)

Fuse

F302

T3.15A

250V~

CN333

(WHI)

5 5

4 4

3 3

2 2

1 1

BLK

WHI

Motor

drive

circuit

CN001

(WHI)

2 2

1 1

–

Adapter for

Wireless Remote

Controller

CN334

(WHI)

CN309

(YEL)

1 1

2 2

3 3

4 4

5 5

BLK

3 3

2 2

1 1

CN41

(BLU)

Fuse

F301

WHI

302

303

250V~

T6.3A

WHI

P301

BLK

CN68

(BLU)

1 2 3

CN304

(GRY)

1 2 3 4 5

1 2

CN66

(WHI)

CN67

(BLK)

Wired Renote

Controller

RED WHI BLK

1 2 3

Color

Indoor unit

earth screw

Identification

BLK : BLACK

BLU : BLUE

NOTE

FM : Fan motor

TA : Indoor temp. sensor

TC : Temp. sensor

RED : RED

GRY : GRAY

PNK : PINK

GRN : GREEN

WHI : WHITE

BRN : BROWN

ORN : ORANGE

YEL : YELLOW

Outdoor unit

earth screw

Serial

TCJ : Temp. sensor

LM1,LM2 : Louver motor

DP : Drain pump motor

FS : Float switch

L N

signal

Single phase

220 to 240V

50Hz

RY302 : Drain control relay

– 21 –

• Single type

• Twin type

Power supply 220-240V

Single phase 50Hz

Power supply 220-240V

Single phase 50Hz

Outdoor unit

1 2 3

Outdoor unit

1 2 3

Indoor

unit

A B

Indoor unit

No.1 (Master)

A B

Indoor unit

No.2 (Sub)

A B

Earth

screw

A B

Wired remote controller

A B

Wired remote controller

• Triple type

Power supply 220-240V

Single phase 50Hz

Outdoor unit

1 2 3

Indoor unit

No.1 (Header)

A B

Indoor unit

No.2 (Follower)

A B

Indoor unit

No.3 (Follower)

A B

Earth

screw

Earth

screw

Earth

screw

Earth

screw

Earth

screw

Earth

screw

Earth

screw

A B

Wired remote controller

Notes)

: indicates a terminal block

2. Broken line and chain line indicate wiring at local site.

3. For the inner wiring diagram of the outdoor unit and the indoor unit, refer to the wiring diagram of each model.

4. There is no polarity. It is no problem that the remote controller is connected to the indoor unit terminal block A

and B reversely.

5. When using a wireless remote controller, connection of the remote controller to A and B terminal blocks are

unnecessary. (Wire connection between indoor unit No.1 and No.2 is necessary.)

– 22 –

5. SPECIFICATIONS OF ELECTRICAL PARTS

5-1. Indoor Unit

No.

Parts name

Type

Specifications

Output (Rated) 60 W, 220–240 V

10 kΩ at 25°C

Fan motor (for indoor)

SWF-230-60-1R

155 mm

Thermo. sensor (TA-sensor)

Heat exchanger sensor (TCJ-sensor)

Heat exchanger sensor (TC-sensor)

Float switch

Ø6 mm, 1200 mm

FS-0218-106

ADP-1406

10 kΩ at 25°C

Drain pump motor

– 23 –

6. 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 refrigerat-

ing 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. Conforming to

contents of the next section together with the

general cautions included in this manual, perform

the correct and safe work.

Improper installation may cause refrigeration

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

8) Unauthorized modifications to the air conditioner

may be dangerous. If a breakdown occurs please

call a qualified air conditioner technician or

electrician.

6-1. Safety During Installation/Servicing

Improper repair’s may result in water leakage,

electric shock and fire, etc.

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 materi-

als exclusive for R410A, it is necessary to carry out

installation/servicing safely while taking the following

precautions into consideration.

6-2. Refrigerant Piping Installation

6-2-1. Piping Materials and Joints Used

For the refrigerant piping installation, copper pipes

and joints are mainly used. 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.

1) Never use refrigerant other than R410A in an air

conditioner which is designed to operate with

R410A.

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

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. Do not use copper

pipes having a collapsed, deformed or discolored

portion (especially on the interior surface).

Otherwise, the expansion valve or capillary tube

may become blocked with contaminants.

2) Confirm the used refrigerant name, and use tools

and materials exclusive for the refrigerant R410A.

The refrigerant name R410A is indicated on the

visible place of the outdoor unit of the air condi-

tioner using R410A as refrigerant.To prevent

mischarging, the diameter of the service port

differs from that of R22.

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 6-2-1. Never use copper

pipes thinner than 0.8 mm even when it is

available on the market.

4) When installing or removing an air conditioner, do

not allow air or moisture to remain in the refrig-

eration cycle. Otherwise, pressure in the refrig-

eration cycle may become abnormally high so

that a rupture or personal injury may be caused.

5) After completion of installation work, check to

make sure that there is no refrigeration gas

leakage.

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.

– 24 –

Table 6-2-1 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

6.35

9.52

0.80

12.70

15.88

0.80

1.00

2) 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 6-2-3 to 6-2-6 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 6-2-2.

Table 6-2-2 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

6.35

9.52

0.50

0.60

0.70

0.80

12.70

15.88

6-2-2. 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.

– 25 –

c) Insertion of Flare Nut

d) Flare Processing

Flare processing dimensions differ according

to the type of flare tool. When using a conven-

tional flare tool, be sure to secure “dimension

A” by using a gauge for size adjustment.

Make certain that a clamp bar and copper

pipe have been cleaned.

By means of the clamp bar, perform the flare

processing correctly.

ØD

Use either a flare tool for R410A or conven-

tional flare tool.

Fig. 6-2-1 Flare processing dimensions

Table 6-2-3 Dimensions related to flare processing for R410A

A (mm)

Conventional flare tool

Outer

diameter

(mm)

Nominal

diameter

Thickness

(mm)

Flare tool for

R410A clutch type

0 to 0.5

Clutch type

1.0 to 1.5

Wing nut type

1.5 to 2.0

1/4

3/8

1/2

5/8

6.35

9.52

0.8

1.0

0 to 0.5

1.5 to 2.0

12.70

15.88

0 to 0.5

2.0 to 2.5

0 to 0.5

2.0 to 2.5

Table 6-2-4 Dimensions related to flare processing for R22

A (mm)

Outer

diameter

(mm)

Nominal

diameter

Thickness

(mm)

Flare tool for

R22 clutch type

0 to 0.5

Conventional flare tool

Clutch type

0.5 to 1.0

Wing nut type

1.0 to 1.5

1/4

3/8

1/2

5/8

6.35

9.52

0.8

1.0

0 to 0.5

1.0 to 1.5

12.70

15.88

0 to 0.5

1.5 to 2.0

0 to 0.5

1.5 to 2.0

Table 6-2-5 Flare and flare nut dimensions for R410A

Dimension (mm)

Nominal

diameter

Outer diameter

(mm)

Thickness

(mm)

Flare nut

width (mm)

1/4

3/8

1/2

5/8

6.35

9.52

0.8

1.0

9.1

9.2

6.5

13.2

16.6

19.7

13.5

16.0

19.0

9.7

12.70

15.88

12.9

16.0

– 26 –

Table 6-2-6 Flare and flare nut dimensions for R22

Dimension (mm)

Nominal

diameter

Outer diameter

Thickness

(mm)

Flare nut width

(mm)

1/4

3/8

1/2

5/8

3/4

6.35

9.52

0.8

1.0

9.0

9.2

6.5

13.0

16.2

19.4

23.3

13.5

16.0

19.0

24.0

9.7

12.70

15.88

19.05

12.9

16.0

19.2

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

Tightening torque of torque

wrenches available on the market

N•m (kgf•cm)

Nominal

diameter

Outer diameter

(mm)

Tightening torque

N•m (kgf•cm)

1/4

3/8

1/2

5/8

6.35

9.52

14 to 18 (140 to 180)

33 to 42 (330 to 420)

50 to 62 (500 to 620)

63 to 77 (630 to 770)

16 (160), 18 (180)

42 (420)

12.70

15.88

55 (550)

65 (650)

– 27 –

6-3. Tools

6-3-1. RequiredTools

The service port diameter of packed valve of the outdoor unit in the air conditioner using R410A is changed to

prevent mixing of other refrigerant.To reinforce the pressure-resisting strength, flare processing dimensions and

opposite side dimension of flare nut (For Ø12.7 copper pipe) of the refrigerant piping are lengthened.

The used refrigerating oil is changed, and mixing 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

air conditioner installation

Conventional air

conditioner installation

No.

Used tool

Usage

Existence of

new equipment

for R410A

Whether conven- Whether new equipment

tional equipment

can be used

can be used with

conventional refrigerant

Flare tool

Pipe flaring

Ye s

*(Note 1)

‚

Copper pipe gauge for

adjusting projection

margin

Flaring by conventional

flare tool

Ye s

*(Note 1)

Torque wrench

Connection of flare nut

Ye s

„

ꢀ

†

Gauge manifold

Charge hose

Evacuating, refrigerant

charge, run check, etc.

Vacuum pump adapter

Vacuum evacuating

Refrigerant charge

Ye s

Electronic balance for

refrigerant charging

‡

Refrigerant cylinder

Leakage detector

Charging cylinder

Refrigerant charge

Gas leakage check

Refrigerant charge

Ye s

‰

(Note 2)

Note 1) 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.

Note 2) Charging cylinder for R410A is being currently developed.

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.

4) Reamer

9) Hole core drill (Ø65)

1) Vacuum pump

Use vacuum pump by

attaching vacuum pump adapter.

5) Pipe bender

10) Hexagon wrench

(Opposite side 4mm)

6) Level vial

2) Torque wrench

3) Pipe cutter

11) Tape measure

12) Metal saw

7) Screwdriver (+, –)

8) Spanner or Monkey wrench

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

1) Clamp meter

2) Thermometer

3) Insulation resistance tester

4) Electroscope

– 28 –

6-4. 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.)

Never charge refrigerant exceeding the specified amount.

‚

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

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)

(Gas side)

(OUTDOOR unit)

Opened

Closed

Refrigerant cylinder

(With siphon pipe)

Check valve

Open/Close valve

for charging

Service port

Electronic balance for refrigerant charging

Fig. 6-4-1 Configuration of refrigerant charging

– 29 –

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

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 composi-

tion of the charged refrigerant changes and the

characteristics of the equipment varies.

Fig. 6-4-2

6-5. Brazing of Pipes

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.

‚

6-5-1. Materials for Brazing

1) Silver brazing filler

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 solderability.

When performing brazing again at time of

servicing, use the same type of brazing filler.

2) Phosphor bronze brazing filler

Phosphor bronze brazing filler is generally used

to join copper or copper alloy.

6-5-2. Flux

3) Low temperature brazing filler

1) Reason why flux is necessary

Low temperature brazing filler is generally called

solder, and is an alloy of tin and lead. Since it is

weak in adhesive strength, do not use it for

refrigerant pipes.

• By removing the oxide film and any foreign

matter on the metal surface, it assists the flow

of brazing filler.

• In the brazing process, it prevents the metal

surface from being oxidized.

• By reducing the brazing filler's surface tension,

the brazing filler adheres better to the treated

metal.

– 30 –

2) Characteristics required for flux

6-5-3. 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

(N2) 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 harm-

less 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.

Attach a reducing valve and a flow-meter to

the Nitrogen gas cylinder.

‚

Use a copper pipe to direct the piping mate-

rial, and attach a flow-meter to the cylinder.

3) Types of flux

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.

• Noncorrosive flux

Generally, it is a compound of borax and boric

acid.

It is effective in case where the brazing tem-

perature is higher than 800°C.

When the Nitrogen gas is flowing, be sure to

keep the piping end open.

„

ꢀ

• Activated flux

Adjust the flow rate of Nitrogen gas so that it

is lower than 0.05 m³/Hr or 0.02 MPa (0.2kgf/

cm²) by means of the reducing valve.

Most of fluxes generally used for silver brazing

are this type.

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.

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).

†

‡

Remove the flux completely after brazing.

4) Piping materials for brazing and used braz-

ing filler/flux

Piping

material

Used brazing

filler

Used

flux

Copper - Copper Phosphor copper Do not use

Copper - Iron

Iron - Iron

Silver

Paste flux

Vapor flux

Flow meter

Stop valve

Nitrogen gas

cylinder

From Nitrogen cylinder

Do not enter flux into the refrigeration cycle.

‚

When chlorine contained in the flux remains

within the pipe, the lubricating oil deteriorates.

Therefore, use a flux which does not contain

chlorine.

Pipe

Nitrogen

gas

When adding water to the flux, use water

which does not contain chlorine (e.g. distilled

water or ion-exchange water).

„

Rubber plug

Remove the flux after brazing.

Fig. 6-5-1 Prevention of oxidation during brazing

– 31 –

6-6. Tolerance of Pipe Length and Pipe Head

n Twin system

Total length (L + a or L + b)

50 m

15 m

Pipe length

(one way)

Branch pipe length (a, b)

Maximum difference between indoor units

(b – a, or a - b)

10 m

Refrigerant pipe

specification

Between indoor units ( ∆ h)

0.5 m

30 m

Height

difference

Between indoor unit

When outdoor unit heigher (H)

and outdoor unit

When outdoor unit lower

(H)

30 m

Number of bent portions

10 m or less

Indoor unit A

Indoor unit B

∆h

Distributor

Branch pipe

Main pipe

Outdoor unit

CAUTION

When planning a layout for Units A and B, comply with the following:

1. The lengths after branching (“a” and “b”) should be equal if feasible.

Install Units A and B so that the difference of the branching lengths becomes less than 10m if the lengths

cannot be equal due to the branch pipe position.

2. Install Units A and B on the same level.

If Units A and B cannot be installed on the same level, the difference in level should be limited to 0.5m or less.

3. Be certain to install Units A and B in the same room.

Units A and B cannot be operated independently each other.

– 32 –

n Triple system

Total length (L + a, L +b, L+c)

Branch pipe length (a, b, c)

50 m

15 m

Pipe length

(one way)

Maximum difference between indoor units

(|a – b|, |b – c|, |c – d|)

10 m

Refrigerant pipe

specification

Between indoor units ( ∆ h)

0.5 m

30 m

Height

difference

Between indoor unit

When outdoor unit heigher (H)

and outdoor unit

When outdoor unit lower

(H)

30 m

Number of bent portions

10 m or less

Indoor unit A

Indoor unit C

Indoor unit B

∆ h

Branch pipe

Distributor

Main pipe

Outdoor unit

CAUTION

When planning a layout for Units A, B and C, comply with the following:

1. The lengths after branching (“a” and “b”, “b” and “c”, “a” and “c”) should be equal if feasible.

Install Units A, B and C so that the difference of the branching lengths becomes less than 10m if the

lengths cannot be equal due to the branch pipe position.

2. Install Units A, B and C on the same level.

If Units A, B and C cannot be installed on the same level, the difference in level should be limited to 0.5 m

or less.

3. Be certain to install Units A and B and C in the same room. Units A, B and C cannot be operated indepen-

dently each other.

– 33 –

6-7. Additional Refrigerant Amount

n Twin system

Do not remove the refrigerant even if the additional refrigerant amount becomes minus result as a result of

calculations by the following formula and operate the air conditioner as it is.

Additional refrigerant amount (kg) = Main piping additional refrigerant amount (kg)

+ Branch piping additional refrigerant amount (kg)

= α × (L – 18) + γ × (a + b – 4)

: Additional refrigerant amount per meter of actual main piping length (kg)

: Additional refrigerant amount per meter of actual branch piping length (kg)

: Actual length of main piping (m)

a, b : Actual length of branch piping (m)

Standard piping length

Main piping Branch piping

18 m 2 m

Connecting pipe diameter

Additional refrigerant amount per Meter (kg/m)

Ø9.5

Ø6.4

0.040

—

0.020

Indoor unit A

Indoor unit B

∆h

Distributor

Branch pipe

Main pipe

Outdoor unit

CAUTION

1. Be certain to wire the additional refrigerant amount, pipe length (actual length), head and other

specification on the nameplate put on the outdoor unit for recording.

2. Seal the correct amount of additional refrigerant in the system.

– 34 –

n Triple system

Do not remove the refrigerant even if the additional refrigerant amount becomes minus result as a result of

calculations by the following formula and operate the air conditioner as it is.

Additional refrigerant amount (kg) = Main piping additional refrigerant amount (kg)

+ Branch piping additional refrigerant amount (kg)

= {α × (L – 28)} + {γ × (a + b + c – 6)}

: Additional refrigerant amount per meter of actual main piping length (kg)

: Additional refrigerant amount per meter of actual branch piping length (kg)

: Actual length of main piping (m)

a, b, c : Actual length of branch piping (m)

Connecting pipe diameter

Additional refrigerant amount per Meter (kg/m)

Ø9.5

Ø6.4

0.04

—

0.02

Indoor unit A

Indoor unit C

Indoor unit B

∆ h

Branch pipe

Distributor

Main pipe

Outdoor unit

CAUTION

1. Be certain to wire the additional refrigerant amount, pipe length (actual length), head and other

specification on the nameplate put on the outdoor unit for recording.

2. Seal the correct amount of additional refrigerant in the system.

– 35 –

6-8. Piping Materials and Sizes

n Twin system

Use copper tube of Copper and copper alloy seamless pipes and tubes, with 40mg/10m or less in the

amount of oil stuck on inner walls of pipe and 0.8mm in pipe wall thickness for diameters for diameters 6.4,

9.5 and 12.7mm and 1.0mm, for diameter 15.9mm. Never use pipes of thin wall thickness such as 0.7mm.

In parentheres ( ) are wall thickness

Main pipe

Branch pipe

Main pipe

Ø15.9 (1.0)

Ø12.7 (0.8)

Ø9.5 (0.8)

Ø6.4 (0.8)

Gas side

Pipe side

Liquid side

Branch pipe

n Triple system

Use copper tube of Copper and copper alloy seamless pipes and tubes, with 40 mg/10 m or less in the

amount of oil stuck on inner walls of pipe and 0.8 mm in pipe wall thickness for diameters 6.4, 9.5 and

12.7 mm and 1.0 mm, for diameter 15.9 mm. Never use pipes of thin wall thickness such as 0.7 mm.

[Unit: mm]

Outdoor unit

Gas side

Ø15.9 (1.0)

Ø9.5 (0.8)

Main pipe

Liquid side

∗ ( ): Pipe wall thickness

[Unit: mm]

Indoor unit

SM56 type

Ø12.7 (0.8)

Ø6.4 (0.8)

Gas side

Branch pipe

Liquid side

∗ ( ): Pipe wall thickness

– 36 –

6-9. Branch Pipe

n Twin system

Now the refrigerant pipe is installed using branch pipes supplied as accessories.

• Bend and adjust the refrigerant piping so that the branch pipes and pipe after branching become horizontal.

• Fix the branch pipes onto a wall in a ceiling or onto a column.

• Provide a straight pipe longer than 500mm in length as the main piping of the branches.

Horizontal

NO GOOG

Inclination

6-10. Distributor

n Triple system

Now the refrigerant pipe is installed using distributor supplied as accessories.

• Bend and adjust the refrigerant piping so that the distributor and pipe after branching become horizontal.

• Fix the distributor onto a wall in a ceiling or onto a column.

• Provide a straight pipe longer than 500 mm in length as the main piping of the branches.

Branch pipes are horizontal

and collective pipes are vertical

Branch pipes are horizontal

and collective pipes are vertical

Branch pipes and

collective pipes are horizontal

Branch pipes and

collective pipes are horizontal

Branch pipe

Collective pipe

Branch pipe

Collective pipe

Provide a straight area of 500 mm or more on the main pipe side of the branch pipe

(for both gas pipe and liquid pipe sides).

NO GOOG

Tilt

Be sure to install the pipes

horizontally after branching.

500 mm or more

n Air Purging

For the complete information, read the installation manual for outdoor units of air conditioner.

– 37 –

7. CONTROL BLOCK DIAGRAM

7-1. Indoor Control Circuit

Main (Sub) master remote controller

Weekly timer

*1 Connection Interface is attached to

master unit.

Display

LCD

Function setup

LCD

Function setup

driver

(In case of group control operation)

CPU

*2 Weekly timer is not connectable to

the sub remote controller.

Display

Key switch

LED

Display

LCD

Key switch

CN2

CN1

DC5V

Remote controller

Secondary

battery

Power

circuit

communication

circuit

Central control remote controller

(Option)

Option

Indoor unit

Connection Interfase

(Option)

Indoor control P.C. board

(MCC-1402)

P.C. board

(MCC-1440)

Remote controller

communication

circuit

DC20V

EEPROM

TCC-LINK

communication

circuit

DC5V

DC12V

TA sensor

TC sensor

Same as

the left

Same as

the left

Duct type nothing

CPU

TCJ sensor

Float input

Louver

motor

Driver

Separately sold parts

for Ceiling type

Drain

pump

Outside output

Run

Warning Ready

Thermo. ON

Cool/Heat Fan

CPU

Fan motor

control

circuit

Serial

Indoor

fan

motor

synchronous

send/receive

signal input circuit

circuit

Power circuit

Outdoor

unit

Outdoor

unit

DC280V

1 2 3

Wireless remote controller kit

Receiver P.C. board

Remote controller

communication circuit

Temporary

operation SW

Outdoor unit

Power

circuit

DC5V

CPU

Function

setup SW

Buzzer

Receive circuit

Display LED

– 38 –

7-2. Control Specifications

No.

Item

Outline of specifications

1) Distinction of outdoor units

Remarks

When power

supply is reset

When the power supply is reset, the outdoors are

distinguished, and control is exchanged according to

the distinguished result.

2) Setting of speed of the indoor fan/setting whether to

adjust air direction or not.

Based on EEPROM data, speed of the indoor fan or

setting whether to adjust air direction or not is se-

lected.

Air speed/

Air direction adjustment

Operation mode 1) Based on the operation mode selecting command

selection

from the remote controller, the operation mode is

selected.

Remote controller

Outline of control

command

STOP

FAN

Air conditioner stops.

Fan operation

COOL

DRY

Cooling operation

Dry operation

HEAT

AUTO

Heating operation

• COOL/HEAT operation mode

is automatically selected by Ta

and Ts for operation.

Ta : Room temperature

Ts : Setup temperature

(˚C)

COOL

Tsc : Setup temperature in

cooling operation

+1.5

(COOL ON)

Tsh : Setup temperature

+ Room temperature

control temperature

compensation

Tsc

or Tsh

(COOL OFF)

HEAT

-1.5

1) Judge the selection of COOL/HEAT mode as shown

in the figure above.

When 10 minutes passed after thermostat had

been turned off, the heating operation (Thermo

OFF) is exchanged to cooling operation if Tsh

exceeds +1.5 or more.

(COOL OFF) and (COOL ON) in the figure indicate

an example.

When 10 minutes passed after thermostat had

been turned off, the cooling operation (Thermo

OFF) is exchanged to heating operation if Tsc

exceeds –1.5 or less.

2) For the automatic capacity control after judgment of

COOL/HEAT, refer to item 4.

3) For the temperature correction of room temperature

control in automatic heating operation, refer to item 3.

– 39 –

No.

Item

Outline of specifications

Remarks

Room

temperature

control

1) Adjustment range Remote controller setup tem-

perature (°C)

COOL/

DRY

Heating

operation operation

Auto

Wired type

18 to 29

18 to 30

18 to 29

16 to 30

18 to 29

17 to 27

Wireless type

2) Using the item code 06, the setup temperature in

heating operation can be compensated.

Shift of suction tempera-

ture in heating operation

Setup data

Setup temp.

compensation

+0°C

+2°C

+4°C

+6°C

Setting at shipment

Setup data

Automatic

capacity control

(GA control)

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

operation frequency is instructed to the outdoor unit.

Air speed

selection

1) Operation with (HH), (H), (L), or [AUTO] mode is

performed by the command from the remote controller.

HH > H > L > LL

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

(HH)

H (HH)

L(H)

+0.5

Tsc

-0.5

L(H)

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, the air speed

selects a downward slope, 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.

– 40 –

No.

Item

Outline of specifications

Remarks

Air speed

selection

<HEAT>

Ta (˚C)

L(L)

(Continued)

(-0.5) –1.0

(0)

Tsh

L(H)

H(H)

(+0.5) +1.0

(HH)

(+1.0) +2.0

(+1.5) +3.0

(HH)

(+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 is exchanged, the

air speed changes.

• When heating operation has started, the air speed selects a

upward slope, 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.

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

SM402

Standard

High ceiling

COOL HEAT

SM562

SM452

Tap

Revolutions per

minute (rpm)

COOL

HEAT

360

610

670

730

790

850

870

880

900

360

550

590

640

690

750

790

830

900

L+

M+

L+

M+,M

Tc: Indoor heat exchanger sensor temperature

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

stat is turned off.

[PRE-HEAT] display

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

defrost operation has been cleared, it operates with HIGH

(H) mode or (HH) for 1 minute from when Tc has entered

in E zone of cool air discharge preventive control (Item 6).

(˚C)

5) In automatic cooling/heating operation, the revolution

frequency of [HH] is set larger than that in the standard

cooling/heating operation. However the revolution fre-

quency is restricted in the automatic heating operation as

shown in the following figure.

– 41 –

No.

Item

Cool air

discharge

preventive

control

Outline of specifications

Remarks

1) In heating operation, the indoor fan is controlled based In D or E zone, the priority

on the detected temperature of Tc sensor or Tcj sensor. is given to setup of air

As shown below, the

upper limit of the

revolution frequency

is determined.

volume exchange.

Tcj

(˚C)

In A and B zones,

[PRE-HEAT] is displayed.

E zone

D zone

OFF

C zone

B zone

A zone

Freeze

preventive

control

1) The cooling operation (including Dry operation) is

performed as follows based on the detected tempera-

ture of Tc sensor or Tcj sensor.

Tcj : Indoor heat ex-

changer sensor

temperature

(Low

temperature

release)

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 opera-

tion 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 [M] mode.

(˚C)

In heating operation, the freeze-preventive control

works if 4-way valve is not exchanged and the condition

is satisfied. (However the temperature for J zone

dashing control is changed from 2°C to –5°C.)

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 fre-

quency is decreased from the real operation fre-

quency. After then the commanded frequency

changes every 30 seconds while operation is per-

formed in [M] zone.

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

• When [L] zone is detected, the commanded fre-

quency 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 :

When the operation has started or when Tc or Tcj became

lower than 30°C after start of the operation, temperature is

controlled between values in parentheses of A and B.

Same when thermostat is

turned off.

– 42 –

No.

Item

Outline of specifications

Remarks

Drain pump control 1) In cooling operation (including Dry operation), the

drain pump is usually operated.

2) If the float switch operates while drain pump

operates, the compressor stops, the drain pump

continues the operation, and a check code is

output.

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

the compressor stops and the drain pump oper-

ates. If the float switch keeps operating for approx.

4 minutes, a check code is output.

Check code [P10]

10 After-heat

elimination

When heating operation stops, the indoor fan operates

with LOW mode for approx. 30 seconds.

11 Flap control

1) Flap position setup

• When the flap position is changed, the position

moves necessarily to downward discharge

position once to return to the set position.

• The flap position can be set up in the following

operation range.

In cooling/dry operation In heating/fan operation

• In group twin/triple operation, the flap positions

can be set up collectively or individually.

2) Swing setup

• The swinging position can be moved in the

following operation range.

All modes

• In group twin/triple operation, the swinging

positions can be set up collectively or individu-

ally.

Warning :

3) When the unit stops or when a warning is output,

the flap automatically moves downward.

A check code is displayed

on the remote controller,

and the indoor unit stops.

(Excluding [F08] and

[L31])

4) While the heating operation is ready, the flap

automatically moves upward.

– 43 –

No.

Item

Outline of specifications

Remarks

12 Frequency fixed

operation

1. When pushing [CHECK] button for 4 seconds or more,

[TEST] is displayed on the display screen and the

mode enters in Test run mode.

(Test run)

2. Push [ON/OFF] button.

3. Using [MODE] button, change the mode from [COOL]

to [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 [CHECK] button to clear the test run mode.

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

status returns to the normal stop status.)

1. Turn off the power of the set.

Remove the adjuster with sensors from the ceiling

panel.

2. Turn Bit [1:TEST] of sensor P.C. board switch [S003]

from OFF to ON.

Attach the sensor P.C. board cover and mount the

adjuster with sensors to the ceiling panel.

Turn on the power of the set.

3. Push [ON/OFF] button of the wireless remote controller

and set the operation mode to [COOL] or [HEAT] using

[MODE] button.

(During test run operation, all the display lamps of

wireless remote controller sensors flash.)

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

• 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.

5. Turn off the power of the set.

Turn Bit [1:TEST] of sensor P.C. board switch [S003]

from ON to OFF.

Mount the adjuster with sensors to the ceiling panel.

13 Filter sign display 1) The operation time of the indoor fan is calculated, the

[FILTER] goes on.

(Except wireless

type)

filter reset signal is sent to the remote controller when

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

displayed on LCD.

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.

– 44 –

No.

Item

Outline of specifications

Remarks

14 Central control

mode selection

1) Setting at the central controller side enables to select

the contents which can be operated on the remote

controller at indoor unit side.

2) RBC-AMT31E, RBC-AMT32E

[Last push priority] :

(No display)

The operation contents can be selected from both

remote controller and central controller of the indoor

unit side, and the operation is performed with the

contents selected at the last.

[Center] :

[

] goes on.

Start/Stop operation only can be handled on the

remote controller at indoor unit side.

[Operation Prohibited] :

It cannot be operated on the remote controller at

indoor unit side. (Stop status is held.)

In a case of wireless type, the

display lamp does not change.

However, contents which can be

operated are same.

The status set in [

] /

[Operation Prohibited] mode is

notified with the receiving sound

“Pi, Pi, Pi, Pi, Pi” (5 times).

15 Energy-save

control

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

be operated.

(By connected

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

16 Max. frequency 1) This control is operated by selecting [AUTO] opera-

cut control

tion mode.

Ta(˚C)

2) COOL operation mode: the frequency

is controlled according to the following

figure if To < 28°C.

Normal control

Max. frequency is restricted

to approximately the rated

cooling frequency

Tsc

Ta(˚C)

3) HEAT operation mode: the frequency

is controlled according to the right

figure if To > 15°C.

Tsh

Max. frequency is restricted

to approximately the rated

heating frequency

–3

–4

Normal control

17 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 operated while the fan motor stops.

• When a fan locking is found, the air conditioner stops,

and an error is displayed.

Check code [P12]

– 45 –

Filter/Option error input

EEPROM

Connection interface

Microcomputer operation LED

DC fan output

Indoor/Outdoor

inter-unit cable

Optional

power supply

Remote controller

power supply LED

DC fan return

Float SW

Drain pump output

Fan output

HA (T10)

TCJ sensor

EXCT

TA sensor

Remote controller inter-unit cable

Used for

servicing

DISP

CHK

Optional output

TC sensor

Louver

(Used only for 4-way Air Discharge Cassette Type, Under Ceiling type)

8. CIRCUIT CONFIGURATION AND CONTROL SPECIFICATIONS

8-1. Indoor Control Circuit

8-1-1. Outline of Main Controls

1. Pulse Motor Valve (P.M.V.) control

1) PMV is controlled 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 for SP404, SP454, SM562, SM563, 100°C for SP562 in both cooling and

heating operations.

CAUTION

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.

TD [˚C]

2. Discharge temperature release control

1) This function controls the operation frequency,

that is, lowers the operation frequency when the

discharge temperature has not lower or the

discharge temperature has rapidly risen during

P.M.V. control.

Error stop ("P03" display with 8 times of error counts)

Frequency down

It subdivides the frequency control up to a unit

of 0.6Hz 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.

Frequency holding

Frequency slow-up

(Up to command)

The error counter is cleared when it has

continued the operation for 10 minutes.

If the abnormal stop zone has been detected by

8 times without clearing of counter, an error

“P03” is displayed.

As command is

∗ The cause is considered as excessively little

amount of refrigerant, defective PMV, or

clogging of cycle.

[A]

Frequency down

Hold

[°C]

SM562, SM563,

SP404, SP454

Hold

Normal operation

117 107 103 100

111 106 100 95

1–0.5

SP562

3. Current release control

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.

I1 value [A]

Objective

model

COOL

10.13

11.55

HEAT

12.00

10.50

13.43

SM562, SM563

SP404, SP454

SP562

* For the cooling only models, only COOL is objective.

– 47 –

8-1-2. Indoor P.C. Board Optional Connector Specifications

Connector Pin

Function

Specifications

DC12V (COM)

Remarks

No.

Option output

CN60

Defrost output

ON during defrost operation of outdoor unit

ON during Real thermo-ON (Comp ON)

Thermo. ON output

Cooling output

ON when operation mode is in cooling system

(COOL, DRY, COOL in AUTO cooling/heating)

Heating output

Fan output

ON when operation mode is in heating system

(HEAT, HEAT in AUTO cooling/heating)

ON during indoor fan ON

(Air purifier is used/Interlock cable)

Outside error

input

CN80

CN70

DC12V (COM)

Outside error input

(When continued for 1 minute)

Check code “L30” is output and forced operation stops.

Filter/Option/Humidifier Option error input is controlled. (Protective operation

setup input

Filter option

error

for device attached to outside is displayed.)

* Setting of option error input is performed from

remote controller. (DN=2A)

CHK

Operation check

CN71

CN72

CN73

Check mode input

Used for operation check of indoor unit.

(Communication with outdoor unit or remote controller

is not performed, but the specified operation such as

indoor fan “H” or drain pump ON is output.)

DISP display

mode

Display mode input

Display mode enables indoor unit and remote control-

ler to communicate. (When power is turned on)

Demand input

EXCT demand

Forced thermo-OFF operation in indoor unit

– 48 –

9. TROUBLESHOOTING

9-1. 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)?

• Does not thermostat turn off?

• Does not timer operate during fan operation?

• 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.)

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

NOTE :

Confirmation of check code display

Check defective position and parts.

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.

– 49 –

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)?

• Does not thermostat turn off?

• Does not timer operate during fan operation?

• 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?

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.

– 50 –

9-2. Check Code List

Error mode detected by indoor and outdoor units

: Flash,

: Go on,

l ^{: Go off}

Wireless sensor

lamp display

Wired remote

controller

Diagnostic function

Status of

Judgment and measures

Cause of operation

Condition

Operation Timer

Ready

Check code

air conditioner

No communication from remote controller (including wireless) and

communication adapters

1. Check cables of remote controller and communication adapters.

• Handy remote controller LCD display OFF (Disconnection)

• Central remote controller [97] check code

Stop

Displayed when

E03

E04

E08

(Automatic reset) error is detected

The serial signal is not output from outdoor unit to indoor unit.

• Miscabling of inter-unit cables

• Defective serial sensing circuit on outdoor P.C. board

• Defective serial receiving circuit on indoor P.C. board

1. Outdoor unit does not completely operate.

• Inter-unit cable check, correction of miscabling, case thermo operation

• Outdoor P.C. board check, P.C. board cables check

2. In normal operation

S top

Displayed when

(Automatic reset) error is detected

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

Duplicated indoor unit addresses

1. Check whether there is modification of remote controller connection (Group/Individual)

or not after power has been turned on (finish of group configuration/address check).

* If group configuration and address are not normal when the power has been turned

on, the mode automatically shifts to address setup mode. (Resetting of address)

Displayed when

Stop

error is detected

Communication error between indoor MCU

• Communication error between fan driving MCU and main MCU

1. Check cables of remote controller.

2. Check power cables of indoor unit.

3. Check indoor P.C. board.

Stop

Displayed when

E10

E18

(Automatic reset) error is detected

Regular communication error between master and sub indoor units or

between main and sub indoor units

1. Check cables of remote controller.

2. Check indoor power cable.

3. Check indoor P.C. board.

Stop

Displayed when

(Automatic reset) error is detected

Coming-off, disconnection or short of indoor heat exchanger sensor (TCJ)

Coming-off, disconnection or short of indoor heat exchanger sensor (TC)

Coming-off, disconnection or short of outdoor temperature sensor (TD)

Coming-off, disconnection or short of outdoor temperature sensor (TE/TS)

Coming-off, disconnection or short of outdoor temperature sensor (TO)

Coming-off, disconnection or short of indoor heat exchanger sensor (TA)

Stop

Displayed when 1. Check indoor heat exchanger temperature sensor (TCJ).

2. Check indoor P.C. board.

F01

F02

F04

F06

F08

F10

F29

(Automatic reset) error is detected

Stop Displayed when 1. Check indoor heat exchanger temperature sensor (TC).

(Automatic reset) error is detected

2. Check indoor P.C. board.

Displayed when 1. Check outdoor temperature sensor (TD).

Stop

error is detected

Displayed when 1. Check outdoor temperature sensor (TE/TS).

2. Check outdoor CDB P.C. board.

error is detected

2. Check outdoor CDB P.C. board.

Operation

continues.

Displayed when 1. Check outdoor temperature sensor (TO).

error is detected

Displayed when 1. Check indoor heat exchanger temperature sensor (TA).

2. Check outdoor CDB P.C. board.

Stop

(Automatic reset) error is detected

2. Check indoor P.C. board.

Indoor EEPROM error

• EEPROM access error

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

(Automatic reset) error is detected

2. Check indoor P.C. board.

Breakdown of compressor

• Displayed when error is detected

1. Check power voltage. AC200V ±20V

2. Overload operation of refrigerating cycle

3. Check current detection circuit at AC side.

Displayed when

Stop

H01

H02

H03

error is detected

Compressor does not rotate.

• Over-current protective circuit operates after specified time passed

when compressor had been activated.

1. Trouble of compressor (Compressor lock, etc.) : Replace compressor.

2. Defective cabling of compressor (Phase missing)

3. Phase-missing operation of power supply (3-phase model)

Displayed when

Stop

error is detected

Current detection circuit error

• Current value at AC side is high even during compressor-OFF.

• Phase of power supply is missed.

1. Compressor immediately stops even if restarted. : Check IPDU.

2. Phase-missing operation of power supply

Check 3-phase power voltage and cables.

Displayed when

Stop

error is detected

Duplicated indoor master units

Displayed when 1. Check whether there is modification of remote controller connection (Group/Individual)

L03

L07

L08

Stop

error is detected

or not after power has been turned on (finish of group configuration/address check).

* If group configuration and address are not normal when the power has been turned

on, the mode automatically shifts to address setup mode. (Resetting of address)

There is group line in individual indoor units.

Unsetting of indoor group address

Displayed when

error is detected

Displayed when

error is detected

: Flash,

: Go on,

l ^{: Go off}

Wireless sensor

lamp display

Wired remote

controller

Diagnostic function

Judgment and measures

1. Set the indoor capacity. (DN=I1)

Status of

air conditioner

Cause of operation

Condition

Operation Timer

Ready

Check code

Unset indoor capacity

Displayed when

error is detected

L09

Stop

Outdoor unit and other errors

1. Check cables of CDB and IPDU.

2. Abnormal overload operation of refrigerating cycle

Displayed when

error is detected

L29

• Communication error between CDB and IPDU (Coming-off of connector)

• Heat sink temperature error (Detection of temperature over specified value)

Abnormal outside interlock input

Displayed when

error is detected

1. Check outside devices.

2. Check indoor P.C. board.

L30

L31

Phase detection protective circuit operates. (Normal models)

Fan motor thermal protection

Operation continues.

(Compressor stops.)

Displayed when

error is detected

1. Check power phase order (Reversed phase)/phase missing.

2. Check outdoor P.C. board.

Displayed when

error is detected

1. Check thermal relay of fan motor.

2. Check indoor P.C. board.

No check code is displayed.

Stop

Discharge temperature error

Displayed when

error is detected

1. Check refrigerating cycle. (Gas leak)

2. Trouble of PMV

3. Check Td sensor.

P03

• Discharge temperature over specified value was detected.

High-pressure protection error by TE sensor

(Temperature over specified value was detected.)

Displayed when

error is detected

1. Overload operation of refrigerating cycle

2. Check outdoor temperature sensor (TE).

3. Check outdoor CDB P.C. board.

P04

P10

Stop

Float switch operation

1. Defect of drain pump

2. Clogging of drain pump

3. Check float switch.

• Disconnection, coming-off, defective float switch contactor of float circuit

Displayed when

error is detected

4. Check indoor P.C. board.

Indoor DC fan error

1. Defective detection of position

Displayed when

error is detected

2. Over-current protective circuit of indoor fan driving unit operates.

3. Lock of indoor fan

4. Check indoor P.C. board.

P12

P19

P22

Stop

Error in 4-way valve system

• Indoor heat exchanger temperature lowered after start of heating operation.

1. Check 4-way valve.

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

3. Check indoor P.C. board.

Stop

(Automatic reset)

Displayed when

error is detected

Outdoor DC fan error

1. Defective detection of position

2. Over-current protective circuit of outdoor fan driving unit operates.

3. Lock of outdoor fan

Displayed when

error is detected

Stop

4. Check outdoor CDB P.C. board.

Inverter over-current protective circuit operates. (For a short time)

Short voltage of main circuit operates.

Displayed when

error is detected

1. Inverter immediately stops even if restarted. : Compressor motor rare short

2. Check IPDU. : Cabling error

P26

P29

P31

Stop

IPDU position detection circuit error

Displayed when

error is detected

1. Position detection circuit operates even if operating compressor by removing

3P connector. : Replace IPDU.

Own unit stops while warning is output to other indoor units.

Stop (Sub unit)

(Automatic reset)

Displayed when

error is detected

1. Judge sub unit while master unit is in [E03], [L03], [L07], [L08].

2. Check indoor P.C. board.

For an error mode detected in outdoor unit, the fan operates because sub unit of a group operation does not communicate with the outdoor unit.

Error mode detected by remote controller

: Flash,

: Go on,

l ^{: Go off}

Wireless sensor

lamp display

Wired remote

controller

Diagnostic function

Judgment and measures

Status of

air conditioner

Cause of operation

Condition

Operation Timer

Ready

Check code

No communication with master indoor unit

• Remote controller cable is not correctly connected.

• Power of indoor unit is not turned on.

Remote controller power error, Defective indoor EEPROM

1. Check remote controller inter-unit cables.

2. Check remote controller.

3. Check indoor power cables.

4. Check indoor P.C. board.

No check code

is displayed.

(Remote controller

does not operate.)

—

• Automatic address cannot be completed.

Stop

—

5. Check indoor EEPROM. (including socket insertion)

: Phenomenon of automatic address repetition occurred.

No communication with indoor master unit

• Disconnection of inter-unit cable between remote

controller and master indoor unit

Signal receiving of remote controller is defective.

1. Check remote controller inter-unit cables.

2. Check remote controller.

Stop

(Automatic restart)

* When there is center, operation continues.

Displayed when

error is detected

E01

(Detected at remote controller side)

3. Check indoor power cables.

4. Check indoor P.C. board.

Signal sending error to indoor unit

(Detected at remote controller side)

Stop

(Automatic restart)

When there is center, operation continues.

Signal sending of remote controller is defective.

1. Check sending circuit inside of remote controller.

: Replace remote controller.

Displayed when

error is detected

E02

E09

L20

Multiple master remote controllers are recognized.

(Detected at remote controller side)

1. Check there are multiple master units for 2 remote controllers

(including wireless).

: Master unit is one and others are sub units.

Stop

Displayed when

error is detected

(Sub unit continues operation.)

Duplicated indoor central addresses on communication

of central control system

(Detected by central controller side)

1. Check address setup of central control system network. (DN = 03)

Stop

(Automatic restart)

Displayed when

error is detected

Error mode detected by central remote controller

: Flash,

: Go on,

l ^{: Go off}

Wireless sensor

lamp display

Wired remote

controller

Diagnostic function

Status of

Judgment and measures

Cause of operation

Condition

Operation Timer

Ready

Check code

air conditioner

1. Check communication line/miscabling/ Check power of indoor unit.

2. Check communication. (U3, U4 terminals)

Displayed when

error is detected

—

C05

Sending error central remote controller

Operation continues

3. Check network adapter P.C. board.

4. Check central controller (such as central control remote controller, etc.).

5. Terminal resistance check (connection interface SW01)

Displayed when

error is detected

—

C06

P30

Receiving error in central remote controller

Operation continues

Differs according to error contents of unit with

occurrence of alarm.

Continuation/Stop

(Based on a case)

Displayed when

error is detected

Check the check code of corresponding unit by remote controller

9-3. Error Mode Detected by LED on Outdoor P.C. Board

RAV-SP562AT-E only

<SW801: LED display in bit 1, bit 2 OFF>

• When multiple errors are detected, the latest error is displayed.

• When LED display is

(Go on), there is the main cause of trouble on the objective part of control at CDB

side and the unit stops.

• When LED display is

(Flash), there is the main cause of trouble on the objective part of control at IPDU

side and the unit stops.

• When case thermostat operates, the communication is interrupted on the serial circuit.

If continuing the case thermostat operation, a serial communication error occurs because serial sending to

the indoor unit is interrupted.

Check

code

LED display

No.

Item

D800

(Red)

D801

(Yellow)

D802

(Yellow)

D803

(Yellow)

Type A

F06

TE sensor error

TD sensor error

TS sensor error

TO sensor error

F04

F06

F08

Discharge temp. error

DC outdoor fan error

P03

P22

CDB side

Communication error between IPDU

(Abnormal stop)

L29

High-pressure release operation

EEPROM error

P04

—

10 Communication error between IPDU

(No abnormal stop)

—

11 IGBT short-circuit protection

12 Detection circuit error

13 Current sensor error

14 Comp. lock error

P26

P29

H03

H02

H01

IPDU side

15 Comp. breakdown

: Go on

: Go off

: Flash (5Hz)

<<Check code>>

The check codes are classified into Type A and Type B according to the used remote controller.

Be sure to check the remote controller which you use.

Type A :

Neutral 2-cores type wired remote controller such as RBC-AMT31E, RBC-AMT32E, RBC-AS21E2,

and wireless remote controller kit such asTCB-AX21E2

– 54 –

9-4. Troubleshooting Procedure for Each Check Code

9-4-1. 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 cables.

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-1402).

Is power supplied to remote controller?

AB terminal: Approx. DC18V

Defect → Replace

YES

Correct as a master unit/a sub unit

(Remote controller address connector)

Are two remote controllers

set without master unit?

Check remote controller P.C. board.

Defect → Replace

[E09 error]

YES

Correct as a master unit/a sub unit

(Remote controller address connector)

Are two remote controllers

set without master unit?

Check remote controller P.C. board.

Defect → Replace

– 55 –

[E04 error]

Does outdoor unit operate?

YES

Is setup of group address correct?

YES

Check item code [14].

Correct inter-unit cable.

Are 1, 2, 3 inter-unit cables normal?

YES

Are connections from connectors

of inter-terminal blocks (1, 2, 3)

of indoor/outdoor units normal?

Correct connection of connector.

YES

Check indoor P.C. board

(MCC-1402).

Does voltage between

2 and 3 of inter-terminal blocks (1, 2, 3)

of indoor unit vary?*

Defect → Replace

YES

As shown in the following figure, perform measurement

within 20 seconds after power ON.

S5277G

Black

White

Inter-terminal block

YES

Check/Correct charged

refrigerant amount.

Does case thermo. operate?

Check indoor P.C. board (MCC-1402).

Defect → Replace

RAV-SM562AT-E, RAV-SM563AT-E

MCC-5009

MCC-1531 and MCC-1438

Check outdoor P.C. board

Defect → Replace

RAV-SP404AT-E, RAV-SP454AT-E

RAV-SP562AT-E

– 56 –

[E10 error]

Check indoor control P.C. board (MCC-1402).

Defect → Replace

[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 cables.

Is group control operation?

Is power of all indoor units turned on?

Check indoor P.C. board (MCC-1402).

Check power connection of indoor unit.

(Turn on power again.)

Defect → Replace

[E08, L03, L07, L08 error]

E08 : Duplicated indoor unit numbers

L03 :Two or more master units in a group control

L07 : One or more group addresses of [Individual] in a group control

L08 : Unset indoor group address (99)

If the above is detected when power has been turned on, the mode automatically enters in automatic ad-

dress setup mode. (Check code is not displayed.)

However, if the above is detected during automatic address setup mode, the check code may be displayed.

[L09 error]

YES

Set capacity data of indoor unit.

(Setup item code (DN) = 11)

Is capacity of indoor unit unset?

Check indoor P.C. board (MCC-1402).

Defect → Replace

– 57 –

[L20 error]

Correct cable connection

Are cable connections to communication line U3, U4 normal?

YES

Are not multiple same central

control network addresses connected?

Correct central control network address.

Check central controller (including connection interface)

indoor P.C. board. Defect → Replace.

[L30 error]

Check indoor P.C. board (MCC-1402).

Are outside devices of connector CN80 connected?

YES

Defect → Replace

Check outside devices.

Defect → Replace

Do outside devices normally operate?

YES

Check operation cause.

[P10 error]

Is connection of float switch connector

Correct connection of connector.

Check and correct cabling/wiring.

(Indoor control P.C. board CN34) normal?

YES

Does float

switch operate?

Is circuit

cabling normal?

YES

Check indoor P.C. board (MCC-1402).

Defect → Replace

Check indoor P.C. board (MCC-1402).

Does drain pump

operate?

Is power of drain

pump turned on?

Defect → Replace

YES

Replace drain pump.

Check cabling.

Check drain pipe, etc.

[F10 error]

Is connection of TA sensor connector

(indoor P.C. board CN104) normal?

Correct connection of connector.

Replace TA sensor.

YES

Are characteristics of TA sensor resistance value normal?

YES

* Refer to Characteristics-1.

Check indoor P.C. board (MCC-1402).

Defect → Replace

– 58 –

[P12 error]

Turn off the power.

Are not there connections errors or

disconnection on connectors CN333 and CN334

of indoor unit P.C. board (MCC-1402)?

YES

Correct connection of connector.

Remove connectors CN333 and

CN334 of indoor unit P.C. board

(MCC-1402).

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-1402) correct? *1

YES

• Are not coil windings between

(Red lead) and

(White lead),

between

(White lead) and

(Black lead), between

(Black lead) and

(Red lead) opened or shorted?

→ For resistance, see the following values.

Approx. 70 to 100Ω

Is resistance value of fan motor connector

CN333 at motor side of indoor P.C. board

(MCC-1402) correct? *2

Replace indoor fan motor.

YES

Check resistance of fan motor position detection circuit.

Is not coil winding between

(Yellow lead) and

(Pink lead)

opened or shorted? → Resistance: Approx. 5 to 20kΩ

Is signal output of indoor fan motor

position detection correct? *3

Replace indoor fan motor.

YES

Check fan motor position detection signal.

• Using a tester, measure the voltage between CN334

and

indoor P.C. board (MCC-1402) under condition that CN333 and

CN334 are mounted and the power is turned on.

→ Rotate the fan slowly with hands, and check the pin voltage

swings between 0 to 5V voltage.

• Between

and

: 5V

Check indoor P.C. board

(MCC-1402).

CN333

Defect → Replace

CN334

– 59 –

[P22 error]

Are connections of CN301 and CN300

of P.C. board correct?

YES

CN301,

∗

CN303

Does the fan rotate without trouble

when handling the fan with hands under condition

of removing CN301 and CN300 from P.C. board?

YES

The status that the resistance values

between leads below are 50 to 80Ω

for 40Ω motor (ICF-140-40) and 25 to 55Ω

for 60Ω motor (ICF-140-60-1) is normal.

Between

(Red lead) and

(White lead) and

(Black lead) and

(White lead)

(Black lead)

(Red lead)

CN300

of motor winding of connector (CN301)

CN300 : Motor coil winding

CN301 : Motor position detection

YES

∗

CN301, CN303 : Motor coil winding

CN300, CN302 : Motor position detection

SP562AT-E

The status that there is

5k to 20kW resistance values between

(Yellow lead) and

(Pink lead) of

motor position detection of

connector (CN300) is normal.

YES

Normal fan motor

(Control or CDB P.C. board)

Defective fan motor

(Control P.C. board or CDB P.C. board)

NOTE :

However, GND circuit error inside of the motor is rarely detected even if the above check is carried out.

When the circuit does not become normal even if P.C. board has been replaced, replace outdoor fan motor.

Single phase

RAV-SM562AT-E, SM563AT-E

RAV-SP562AT-E

RAV-SP404AT-E, SP454AT-E

Objective P.C. board

Fan motor winding

Control P.C. board

CN300

CDB P.C. board

CN301

Motor position detection

CN301

CN300

– 60 –

[P19 error]

Is voltage applied

to 4-way valve coil terminal

in heating operation?

Is operation of

4-way valve normal?

YES

Is flow of refrigerant

by electron expansion

valve normal?

Check 4-way valve

Defect → Replace

YES

Check and replace

electron expansion valve.

Is circuit cable normal?

YES

Are characteristics

of TC sensor resistance

value normal?

Check and correct circuit.

YES

* Refer to

Characteristics-2.

Check CDB P.C. board.

YES

Replace TC sensor.

Check CDB P.C. board.

Defect → Replace

Check indoor P.C. board.

Defect → Replace

* For RAV-SM562AT-E, check control P.C. board.

• In cooling operation, if high pressure is abnormally raised, [P19 error]/[08 error] may be displayed. In this

case, remove cause of pressure up and then check again referring to the item [P04 error]/[21 error].

[F02 error]

Is connection of TC sensor connector

Correct connection of connector.

(Indoor P.C. board CN101) normal?

YES

Are characteristics of

TC sensor resistance value normal?

Replace TC sensor.

YES

* Refer to Characteristics-2.

Check indoor P.C. board

(MCC-1402).

Defect → Replace

– 61 –

[F01 error]

Is connection of TCJ sensor connector

(Indoor P.C. board CN102) normal?

Correct connection of connector.

Replace TCJ sensor.

YES

Are characteristics of

TCJ sensor resistance value normal?

YES

∗ Refer to Characteristics-2.

Check indoor P.C. board

(MCC-1402).

Defect → Replace

[P26 error]

Improve the power supply line.

Is power voltage normal?

YES

Check and correct circuit cables.

Correct connection of connector.

Check and correct reactor connection.

Are connections of

cabling/connector normal?

YES

∗For RAV-SM562AT-E, RAV-SM563AT-E, RAV-SP404AT-E, RAV-SP454AT-E

check RY01 on the control P.C. board.

Are not “P26” and “14” errors output

when an operation is performed by

removing 3P connector of compressor?

YES

Does RY01 relay of

IPDU operate?

YES

∗Single-phase type is not provided to

RAV-SM562AT-E, RAV-SM563AT-E

RAV-SP404AT-E, RAV-SP454AT-E.

Replace IPDU.

YES

Is not AC fuse fused?

∗Replace control P.C. board of

RAV-SM562AT-E, RAV-SM563AT-E

RAV-SP404AT-E, RAV-SP454AT-E.

Replace IPDU.

Is compressor normal?

YES

∗Replace control P.C. board of

RAV-SM562AT-E,

RAV-SM563AT-E,

RAV-SP404AT-E,

RAV-SP454AT-E.

Check IPDU.

Defect → Replace

Check rare short of compressor trouble.

Defect → Replace

– 62 –

[P29 error]

Check and correct circuit cabling

such as cabling to compressor.

Are connections of

cable/connector normal?

YES

Is compressor normal?

YES

Compressor error → Replace

Is not earthed?

YES

Is not winding shorted?

(Is resistance between windings 0.6 to 1.2Ω?)

YES

Is not winding opened?

∗ For RAV-SM562AT-E, RAV-SM563AT-E,

RAV-SP404AT-E, RAV-SP454AT-E,

replace control P.C. board.

Check IPDU P.C. board.

Defect → Replace

[H03 error]

Are cablings of power and

current sensor normal?

Check and correct circuit cables.

YES

∗ For RAV-SM562AT-E, RAV-SM563AT-E, RAV-SP404AT-E, RAV-SP454AT-E

Check IPDU.

Defect → Replace

replace control P.C. board.

– 63 –

[F06 error]

Are connections of

TE/TS sensor connectors of

CDB CN604/CN605 normal?

Correct connection of connector.

YES

∗ (For RAV-SM562AT-E, RAV-SM563AT-E, RAV-SP404AT-E, RAV-SP454AT-E,

CN600 TE sensor and CN603 TS sensor)

Are characteristics of TE/TS sensor

resistance values normal?

Replace TE and TS sensors.

YES

Check CDB.

Defect → Replace

∗ Refer to Characteristics-3.

[F04 error]

Is connection of TD sensor connector

of CDB CN600 normal?

Correct connection of connector.

YES

∗ (For RAV-SM562AT-E, RAV-SM563AT-E,

RAV-SP404AT-E, RAV-SP454AT-E, CN601 TD sensor)

Are characteristics of TD sensor

resistance value normal?

Replace TD sensor.

YES

Check control P.C. board.

∗ Refer to Characteristics-4.

Defect → Replace

[F08 error]

Is connection of TO sensor connector

of CDB CN601 normal?

Correct connection of connector.

YES

∗ (For RAV-SM562AT-E, RAV-SM563AT-E,

RAV-SP404AT-E, RAV-SP454AT-E, CN602 TO sensor)

Are characteristics of TO sensor

resistance value normal?

Replace TO sensor.

YES

Check CDB.

Defect → Replace

∗ Refer to Characteristics-5.

– 64 –

[L29 error]

In the case of SUPER DIGITAL INVERTER

Are connections of

CDB CN800 and CDB IPDU CN06

connectors normal?

Correct connection of connector.

YES

Check cabling between IPDU

and CDB and connector.

Was the error just after

power ON determined?

Are cabling/connector normal?

YES

IPDU P.C. board error

Defect → Replace

YES

Improve and eliminate the cause.

Correct mounting.

Is there no abnormal overload?

Is IPDU P.C. board come to

closely contact with heat sink?

YES

Check IPDU P.C. board.

Is power voltage normal?

Defect → Replace

Improve power line.

And power on once again.

In the case of DIGITAL INVERTER

Improve power line.

And power on once again.

Is power voltage normal?

YES

Fault of compressor.

Check rare short

Defect → Replace

Is compressor normal?

YES

Check IPDU P.C. board.

Defect → Replace

[H02 error]

Is power voltage normal?

YES

Improve power line.

Check and correct circuit cabling such

as cabling to compressor

Are connections of

cable/connector normal?

(phase missing) and connector.

YES

Is there no

Is compressor normal?

YES

Compressor lock → Replace

slackened refrigerant?

YES

Does electron expansion

valve normally operate?

Check TE and TS sensors. → Replace

Check electron expansion valve. → Replace

YES

∗ For RAV-SM562AT-E, RAV-SM563AT-E,

RAV-SP404AT-E, RAV-SP454AT-E,

replace control P.C. board.

Check IPDU and CDB.

Defect → Replace

– 65 –

[P03 error]

Correct the cabling and

connection of connector.

Is protective control such as

discharge temprelease control normal?

Are connections of

cable/connector normal?

YES

Check parts. Defect → Replace

Check and correct the charged

refrigerant amount.

Is charged refrigerant amount normal?

YES

Improve and delete the cause

Replace TD sensor.

Is not abnormal overload?

Are characteristics of

TD sensor resistance value normal?

* Refer to Characteristics-4.

YES

Check CDB.

Defect → Replace

∗ For RAV-SM562AT-E, RAV-SM563AT-E,

RAV-SP404AT-E, RAV-SP454AT-E,

replace control P.C. board.

[H01 error]

Improve power line.

Is power voltage normal?

YES

Improve and delete the cause.

Check and correct circuit cables.

Is not abnormal overload?

Is the circuit detected by

current sensor normal?

YES

Check IPDU.

Defect → Replace

∗ For RAV-SM562AT-E, RAV-SM563AT-E,

RAV-SP404AT-E, RAV-SP454AT-E,

replace control P.C. board.

– 66 –

[P04 error]

Is high-voltage

protective operation by

TE sensor normal?

YES

Is connection of

cabling connector normal?

Correct connection

of cabling connector.

YES

Check TE sensor.

Defect → Replace

Does cooling outdoor fan

normally operate?

YES

Correct connection

of connector.

Is connection of

connector normal?

YES

Replace fan motor.

Is fan motor normal?

YES

Does PMV normally operate?

YES

Check TE, TC, TS sensors.

Replace electron expansion valve.

Do not TD and TO sensors

come off the detection part?

Correct coming-off.

YES

Are characteristics of

TD, TO, TC sensor resistance

values normal?

Replace TD, TO,

and TC sensors.

YES

∗ Refer to Characteristics-3 and 4.

Check charged refrigerant amount.

Check CDB.

Defect → Replace

Check liquid/gas valves.

Check abnormal overload.

∗ For RAV-SM562AT-E, RAV-SM563AT-E,

RAV-SP404AT-E, RAV-SP454AT-E,

replace control P.C. board.

– 67 –

[C06 error] (Central controller)

Is U3, U4 communication line normal?

YES

Correct communication line.

Are connections between connectors

CN51 of connection interface P.C. board and

connectors CN51 of indoor P.C. board normal?

Correct connection of connector.

YES

Check connections of A, B terminal blocks.

Is A, B communication line normal?

YES

Correct communication line of remote controller.

Correct power cable.

Turn on the source power supply.

Clear the check code.

Is there no connection error of power line?

Is not power of source power supply turned on?

Did a power failure occur?

Eliminate noise, etc.

Is there no noise source, etc.?

(Same as others)

Can central remote controller

control normally other indoor units?

Is handling of central remote controller reflected

on the operation status of indoor unit?

Check central controller.

Defect → Replace

YES

Can handy remote controller

control normally other indoor units?

Check indoor P.C. board (MCC-1402).

Defect → Replace

YES

Check connection interface P.C. board.

Defect → Replace

– 68 –

[E03 error] (Master indoor unit)

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

central controller).

In this case, check the communication cables of the remote controllers A and B, the central control system X

andY. As communication is disabled, [E03] is not displayed on the main remote controller and the central

controller. [E01] is displayed on the main remote controller and [97 error] on the central controller, respectively.

If [E03] occurs during an operation, the air conditioner stops.

[F29 error] / [12 error]

[F29 error] or [12 error] indicates detection of trouble which occurred on IC10 non-volatile memory (EEPROM)

on the indoor unit P.C. board during operation of the air conditioner. Replace the service P.C. board.

* If EEPROM has not been inserted when the power was turned on or if EEPROM data never be read/written,

the automatic address mode is repeated. In this time, the central controller displays [97 error].

(Power ON)

(Approx. 3 minutes)

[SET] is displayed on

main remote controller.

(Approx. 1 minute)

[SET] goes off.

(Repetition)

LED (D02) on

indoor unit P.C. board flashes

with 1Hz for approx. 10 seconds.

Reboot

(Reset)

[P31 error] (Sub indoor unit)

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

group operation detects [P31 error] and then it stops.There is no display of the check code or alarm history of

the main remote controller.

(In this model, the mode enters in automatic address set mode when the master unit has detected [E03], [L03],

[L07], or [L08] error.)

– 69 –

9-4-2. Relational Graph ofTemperature Sensor Resistance Value and Temperature

TA sensor

TC,TCJ sensor

Caracteristics-2

Caracteristics-1

Resistance

(k )

Resistance

(k )

10 20 30

40 50

–10

10 20

30 40 50 60 70

Temperature [˚C]

TE, TO, TS sensor

200

Caracteristics-3

Resistance

(k )

(10˚C or lower)

(k )

(10˚C or higher)

100

-10

10 20 30

40 50 60 70

Temperature [˚C]

TD sensor

200

Caracteristics-4

Resistance

(k )

(50˚C or lower)

(k )

(50˚C or higher)

100

Temperature [˚C]

– 70 –

10. REPLACEMENT OF SERVICE INDOOR P.C. BOARD

[Requirement when replacing the service indoor P.C. board assembly]

In the non-volatile memory (Hereinafter said EEPROM, IC10) installed on the indoor P.C. board before replace-

ment, the type and capacity code exclusive to the corresponding model have been stored at shipment from the

factory and the important setup data such as system/indoor/group address set in (AUTO/MANUAL) mode or

setting of high ceiling selection have been stored at installation time. Replace the service indoor P.C. board

assembly according to the following procedure.

After replacement, check the indoor unit address and also the cycle by a test run.

CASE 1

Before replacement, power of the indoor unit can be turned on and the setup data can be readout

from the wired remote controller.

Read EEPROM data *1

Replace service P.C. board & power ON *2

Write the read data to EEPROM *3

Power reset (All indoor units in the group when group operation)

CASE 2

Before replacement the setup data can not be readout from the wired remote controller.

Replace service P.C. board & power ON *2

Write the data such as high ceiling setup to EEPROM (According to the customers’ information) *3

Power reset (All indoor units in the group when group operation)

– 71 –

r1 Readout of the setup data from EEPROM

(Data in EEPROM contents, which have been changed at the local site, are read out together with data in EEPROM

set at shipment from the factory.)

TEST

1. Push

^CL, and

buttons of the remote controller at the same time for 4 seconds or more. 1

SET

(Corresponded with No. in Remote controller)

When group operation, the master indoor unit address is displayed at the first time. In this time, the item code

(DN) 10 is displayed. The fan of the selected indoor unit operates and the louver starts swinging if any.

UNIT LOUVER

2. Every pushing

Specify the indoor unit No. to be replaced.

3. Using the set temperature

button, the indoor unit address in the group are displayed successively. 2

buttons, the item code (DN) can be moved up and down one by one. 3

4. First change the item code (DN) from 10 to 01.

(Setting of filter sign lighting time) Make a note of the set data displayed in this time.

5. Next change the item code (DN) using the set temperature

buttons. Also make a note of the set data.

6. Repeat item 5. and make a note of the important set data as shown in the later table (Ex.).

• 01 to FF are provided in the item code (DN). On the way of operation, DN No. may come out.

TEST

7. After finishing making a note, push

button to return the status to usual stop status. 6

(Approx. 1 minute is required to start handling of the remote controller.)

Minimum requirements for item code

1) Type and capacity of the indoor unit is necessary to set the revolutions

frequency of the fan.

Contents

10 Type

2) If Line/Indoor/Group addresses differ from those before replacement, the

mode enters in automatic address setup mode and a manual resetting

may be required.

11 Indoor unit capacity

12 Line address

Notes)

When

replacement

MCC-1402-07

13 Indoor address

14 Group address

Set Short-circuit-plug on the same

position as the P. C. board to replace.

If short-circuit-plug is inserted in

CN34 of the P. C. board to replace,

re-use it in service P. C. board.

CN34

r2 Replacement of service P.C. board

1. Replace the P.C. board with a service P.C. board.

In this time, setting of jumper line (cut) or setting of (short-circuit) connecting connectors on the former P.C. board

should be reflected on the service P.C. board.

2. According to the system configuration, turn on power of the indoor unit with any method in the following items.

a) In case of single (individual) operation

Turn on the power supply.

1) Wait for completion of automatic address setup mode (Required time: Approx. 5 minutes) and then

proceed to r3.

(Line address = 1, Indoor address = 1, Group address = 0 (Individual) are automatically set.)

TEST

2) Push

⁽1 operation), interrupt the automatic address setup mode, and then proceed to r3.

(Unit No. is displayed.)

^CL, and

buttons of the remote controller at the same time for 4 seconds or more

SET

b) In case of group operation

Turn on power of the indoor unit of which P.C. board has been replaced with the service P.C. board with any

method in the following items.

1) Turn on power of the replaced indoor unit only.

(However, the remote controller is also connected. Otherwise r3 operation cannot be performed.)

Same as 1) and 2) in item a).

2) Turn on power of the multiple indoor units including replaced indoor unit.

• Only 1 system for twin, triple, double twin

• For all units in the group

Wait for completion of automatic address setup mode (Required time: Approx. 5 minutes) and then proceed to

r3.

∗ The master unit of a group may change by setup of automatic address. The line address/indoor address of the

replaced indoor unit are automatically set to the vacant addresses except addresses belonging to other indoor

units which have not been replaced. It is recommended to make a note that the refrigerant line which includes the

corresponding indoor unit and that the corresponding indoor unit is master or sub in the group control.

– 72 –

r3 Writing of the setup contents to EEPROM

(The contents of EEPROM installed on the service P.C. board have been set up at shipment from the factory.)

TEST

1. Push

^CL, and

buttons of the remote controller at the same time for 4 seconds or more. 1

SET

(Corresponded with No. in Remote controller )

In group operation control, the master indoor unit No. is displayed at the first time. (If the automatic address

setup mode is interrupted in item 2. - a) - 2) in the previous page, the unit No.

is displayed.)

In this time, the item code (DN) 10 is displayed. The fan of the selected indoor unit operates and the louver

starts swinging if any.

UNIT LOUVER

2. Every pushing

button, the indoor unit numbers in the group control are displayed successively. 2

Specify the indoor unit No. of which P.C. board has been replaced with a service P.C. board.

(When the unit No. ALL is displayed, this operation cannot be performed.)

3. Using the set temperature

buttons, the item code (DN) can be moved up and down one by one. 3

4. First set a type and capacity of the indoor unit.

(Setting the type and capacity writes the data at shipment from the factory in EEPROM.)

1) Set the item code (DN) to 10. (As it is)

2) Using the timer time

buttons, set up a type. 4

(For example, 4-way air discharge cassette type is 0001) Refer to the attached table.

SET

3) Push

4) Using the set temperature

5) Using the timer time

button. (OK when the display goes on.) 5

buttons, set 11 to the item code (DN).

buttons, set the capacity.

(For example, 0012 for class 80) Refer to the attached table.

SET

6) Push

button. (OK when the display goes on.)

TEST

7) Push

button to return the status to usual stop status. 6

(Approx. 1 minute is required to start handling of the remote controller.)

5. Next write the contents which have been set up at the local site such as the address setup in EEPROM.

Repeat the above procedure 1. and 2.

6. Using the set temperature

buttons, set 01 to the item code (DN).

(Setup of lighting time of filter sign)

7. The contents of the displayed setup data in this time should be agreed with the contents in the previous

memorandum in r1.

1) If data disagree, change the displayed setup data to that in the previous memorandum by the timer time

SET

buttons, and then push

2) There is nothing to do when data agrees.

8. Using the set temperature buttons, change the item code (DN).

button. (OK when the display goes on.)

As same as the above, check the contents of the setup data and then change them to data contents in the

previous memorandum.

9. Then repeat the procedure 7. and 8.

TEST

10. After completion of setup, push

button to return

the status to the usual stop status. 6

(Approx. 1 minute is required to start handling of

the remote controller.)

* 01 to 9F are provided in the item code (DN).

On the way of operation, DN No. may come out.

When data has been changed by mistake and

^SET, button has been pushed, the data can be

returned to the data before change by pushing

TEMP

ON / OFF

button if the item code (DN) was not yet

changed.

TIMER SET

TIME

FAN

SAVE

MODE

VENT

FILTER

RESET TEST

SET

SWING/FIX

UNIT LOUVER

– 73 –

Memorandum for setup contents (Item code table (Example))

Item

Filter sign lighting time

Dirty state of filter

Central control address

Heating suction temp shift

Cooling only

Memo

At shipment

According to type

0000: Standard

0099: Unfixed

0002: +2°C (Floor type: 0)

0000: Shared for cooling/heating

According to model type

According to capacity type

0099: Unfixed

Type

Indoor unit capacity

Line address

Indoor unit address

Group address

0099: Unfixed

Flap type (Adjustment of air direction)

According to type

Temp difference of automatic cooling/

heating selecting control points

0003: 3 deg (Ts ± 1.5)

Automatic reset of power failure

Option

0000: None

0002:

Thermo output selection

Option

0000: Thermo ON

0000:

Sensor selection

0000: Body sensor

0000: Standard

0000: Available

0000: None

High ceiling selection

Timer set (Wired remote controller)

Correction of high heat feeling

Type

Item code [10]

Setup data

Type

Abbreviated name

0014

Compact 4-way cassette

RAV-SM✻✻✻MUT-E

* Initial setup value of EEPROM installed on the service P.C. board

Indoor unit capacity

Item code [11]

Setup data

0006

Type

Abbreviated name

RAV-SM402MUT-E

RAV-SM452MUT-E

RAV-SM562MUT-E

0007

Compact 4-way cassette

0009

* Initial setup value of EEPROM installed on the service P.C. board

– 74 –

11. SETUP AT LOCAL SITE AND OTHERS

11-1. Indoor Unit

11-1-1. 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 be-

cause 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.)

1. Remove a screw which fixes the serial olate of the receiver part on the wireless remote controller.

Remove the nameplate of the reciver section by inserting a minus screwdriver, etc. into the notch at the

bottom of the plate, and set the Dip switch to [TEST RUN ON].

2. Execute a test operation with

button on the wireless remote controller.

•

and LED flash during test operation.

• Under status of [TEST RUN ON], the temperature adjustment from the wireless remote controller is invalid.

Do not use this method in the operation other than test operation because the equipment is damaged.

3. Use either [COOL] or [HEAT] operation mode for test operation.

• The outdoor unit does not operate approx. 3 minutes after power-ON and operation stop.

4. After the test operation finished, stop the air conditioner from the wireless remote controller, and return Dip

switch of the sensor section as before. (A 60 minutes timer clearing function is attached to the sensor

section in order to prevent a continuous test operation.)

Receiver unit

Spacer

M4 × 25 screw

(2 pieces)

Nameplate

Notch

Small screw

– 75 –

Procedure

Description

Turn on power of the air conditioner.

The operation is not accepted for 5 minutes when power has been turned on at first time after installation,

and 1 minute when power has been turned on at the next time and after.

After the specified time has passed, perform a test operation.

Push [Start/Stop] button and change the operation mode to [COOL] or [HEAT] with [Mode] button.

Then change the fan speed to [High] using [Fan] button.

Test cooling operation

Test heating operation

Set temperature to [18°C] using [Temperature set]

Set temperature to [30°C] using [Temperature set]

button.

After checking the receiving sound “Pi”, immediately After checking the receiving sound “Pi”, immediately

push [Temperature set] button to set to [19°C] push [Temperature set] button to set to [29°C].

After checking the receiving sound “Pi”, immediately After checking the receiving sound “Pi”, immediately

push [Temperature set] button to set to [18°C]. push [Temperature set] button to set to [30°C].

Then repeat the procedure

→

4 5 4 5

After approx. 10 seconds, all the display lamps on the sensor part of wireless remote controller,

[Operation] (Green), [Timer] (Green), and [Ready] (Yellow) flash and the air conditioner starts operation.

If the lamps do not flash, repeat the procedure

and after.

After the test operation, push [Start/Stop] button to stop the operation.

Test cooling operation:

Start → 18°C → 19°C → 18°C → 19°C → 18°C → 19°C → 18°C → (Test operation) → Stop

Test heating operation:

Start → 30°C → 29°C → 30°C → 29°C → 30°C → 29°C → 30°C → (Test operation) → Stop

Be sure to set the

air speed to [High]

3, 4, 5, 6

2, 7

– 76 –

Item No. (DN) table (Selection of function)

Item

Description

At shipment

01 Filter sign lighting time

0000 : None

0002 : 2500H (4-Way/Duct/Ceiling Type)

0002 for D.I. and S.D.I.

models

02 Dirty state of filter

0000 : Standard

0001 : High degree of dirt (Half of standard time)

0000 : Standard

0099 : Unfixed

03 Central control address

06 Heating suction temp shift

0001 : No.1 unit

0099 : Unfixed

0064 : No.64 unit

0000 : No shift

0002 : +2°C

0001 : +1°C

0010 : -10°C

0002 : +2°C

(Floor type 0000: 0°C)

(Up to recommendation + 6)

0F Cooling only

0000 : Heat pump

0001 : Cooling only (No display of [AUTO] [HEAT])

0000 : Shared for

cooling/heating

10 Type

0014 : SM562MUT-E

According to model type

According to capacity type

11 Indoor unit capacity

0000 : Unfixed

0012 : 802 type

0017 : 1402 type

0009 : 562 type

0015 : 1102 type

12 Line address

0001 : No.1 unit

0000 : Individual

0030 : No.30 unit

0099 : Unfixed

13 Indoor unit address

14 Group address

0064 : No.64 unit

0001 : Master of group

0002 : Sub of group

1E Temp difference of

automatic cooling/heating

mode selection COOL

→ HEAT, HEAT → COOL

0000 : 0 deg

(For setup temperature, reversal of

COOL/HEAT by ± (Data value)/2)

0010 : 10 deg

0003 : 3 deg

(Ts±1.5)

28 Automatic restart of power

failure

0000 : None

0001 : Restart

0000 : None

2A Option

0002 : Default

2b Thermo output selection

0000 : Indoor thermo ON

0001 : Output of outdoor comp-ON receiving

0000: Thermo. ON

(T10

)

2E Option

30 Option

31 Option

0000 : Default

0000 : Body sensor

0000 : °C

32 Sensor selection

33 Temperature indication

40 Option

0000 : Body TA sensor 0001 : Remote controller sensor

0000 : °C (celsius)

0001 : °F (Fahrenheit)

0003 : Default

0000 : Standard

5d High ceiling selection

(Air volume selection)

0000 : Standard (Below 3.2m)

0001 : Standard (Below 3.4m)

0003 : Standard (Below 3.5m)

60 Timer set

0000 : Available (Operable)

0001 : Unavailable (Operation prohibited)

0000 : Available

0000 : None

(Wired remote controller)

8b Correction of high heat

feeling

0000 : None

0001 : Correction

– 77 –

11-1-2. 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)

1 2

Sold

separately

Sold

separately

Sub remote

controller

A B

Master remote

controller

DIP switch

Remote controller

cables (Procured locally)

Terminal block for

remote controller cables

A B

Indoor unit

1 2 3

How to set wireless remote controller to sub

remote controller

1 2 3

Outdoor unit

• When connected 2 remote controllers

operate the twin

Remote controller

switch (Master)

Remote controller

switch (Sub)

Remote controller

inter-unit wire

(Procured locally)

Sold

separately

A B

[Remote controller

Sub/Master]

DIP SW

Terminal block for

remote controller cables

A B

Indoor unit 1

1 2 3

Indoor unit 2

1 2 3

[Operation]

1. The operation contents can be changed by Last-

push-priority.

1 2 3

Inter-unit wiring

between indoor units

(Procured locally)

Outdoor unit

2. Use a timer on either Master remote controller or

Sub remote controller.

(Setup method)

One or multiple indoor units are controlled by

2 remote controllers.

(Max. 2 remote controllers are connectable.)

– 78 –

11-1-3. 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

FILTER

RESET TEST

the item code of data to be monitored.

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

Item code

Data name

Heat exchanger temp. TE

Room temp. (control temp.) ∗1

Room temp. (remote controller)

Room temp. (TA)

Outside temp. TO

Discharge temp. TD

Suction temp. TS

—

Indoor unit

Outdoor unit

data

Heat exchanger temp. (TCJ)

Heat exchanger temp. (TC)

Heat sink temp. THS

∗1 Only master unit in group control

button to select the indoor unit to be monitored.

UNIT LOUVER

Push

Each data of the indoor unit and its outdoor units can be monitored.

button returns the status to the usual display.

TEST

Pushing

∗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.

– 79 –

n Calling of error history

The error contents in the past can be called.

SET

TEST

Push

buttons simultaneously for

4 seconds or more to call the service check mode.

TEMP

ON / OFF

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 occurred

are displayed.

TIMER SET

TIME

FAN

SAVE

MODE

VENT

FILTER

RESET TEST

SET

SWING/FIX

UNIT LOUVER

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.

REQUIREMENT

1 2 3

Do not push

unit are deleted.

button, otherwise all the error histories of the indoor

Returned to usual display

(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.

– 80 –

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.)

– 81 –

11-2. Setup at Local Site / Others

Model name: TCB-PCNT30TLE2 and TCB-PX30MUE

11-2-1. 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

TCC-LINK

MCC-1440

Terminal block

(A, B)

Communication units:

Total 64 units

Communication distance:

2km

Remote controller

3. Installation Procedure

1) Cut off the slit of bell mouth on the Air Conditioner unit (RAV-SM✻✻✻MUT-E) with nipper or a cutter for

attaching the Connection Interface Kit.

Cutting off portion

(Shaded area)

After cutting off the slit of bell mouth on the unit,

clear up the surface of the slit that there is no burr

on the cutting edge.

2) Attach the Connection Interface Kit (TCB-PX30MUE) on the

Air Conditioner unit (RAV-SM✻✻✻MUT-E).

After insert the hook of the unit to the Connection Interface

Kit hole, and then tighten a Cross slot screw (4 × 14).

Connection Interface Kit

Cross slot screw

– 82 –

3) Install the spacers and P.C. board that are attached to TCB-PCNT30TLE2, on the Connection Interface Kit.

Spacers

(Attached to the TCB-PCNT30TLE2)

P.C. board

(Attached to the TCB-PCNT30TLE2)

4) Remove the 2P terminal block for the communication cable of the electric parts box on the unit, and then

replace with the attached 4P terminal block for the communication wires.

a) Disconnect the lead wires on the 2P terminal block of the electric parts box from the Faston connector

on the unit.

b) Replace the 2P connector with 4P connector on the terminal block.

c) Connect the lead wires that are disconnected as shown above steps a), to the 4P terminal block.

(A), (B) terminals

(Connecting for the Remote Controller)

CN41

(BLUE)

CN41

(BLUE)

5) Connect the connection cables attached to the electric parts block.

Terminal

(U3), (U4) terminals

(For central control)

A B

CN41

Main P.C. B

MCC-1402

CN50

(WHITE)

1 2 3 4 5

CN50

(WHITE)

CN51

1 2 3 4 5

CN51

Sub P.C. B

MCC-1440

CN41

(BLUE)

CN40

Connecting cable B

Connecting cable A

Wiring diagram

– 83 –

6) Setting for Central Control

For Central Control setting, refer to the Installation Manual of the TCB-PCNT30TLE2.

7) After the installation work has been completed, install the Connection Interface Kit cover to the Connec-

tion Interface Kit tightened with the two screws (4 ×10).

Screw (4 ×10)

Connection

Interface Kit cover

Hook of

Connection Interface Kit

Screw (4 ×10)

4. 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/triple 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

Maater

unit

Sub

unit

Sub unit

Maater unit

Sub unit

1 2 3

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)

Twin/Triple operation (Example of triple)

Indoor units in all refrigerant lines: Max. 64 units

[If mixed with multi model (Link wiring), multi indoor units are included.]

* However group sub units and twin/triple sub units of customized setup are not included in number of the units.

– 84 –

5. Wiring Specifications

• Use 2-core with no polar wire.

No. of wires

Size

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).

Central control device

3) Ground earth wire to 1 point at indoor unit side.

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

Sub unit

1 2 3

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)

(Triple operation)

6. 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

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

* Wiring for No.1 and 2 only

Master

unit

Sub

unit

Sub unit

Master unit

Sub unit

1 2 3

Indoor unit

U3 U4 1 2 3

1 2 3

A B

U3 U4 1 2 3

A B

TCC-LINK adapter

This product

Remote controller wiring

(

)

sold separately

Remote controller

Group operation (Max. 8 units)

Twin/Triple operation (Example of triple)

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

– 85 –

7. External view of P.C. board assembly

Terminator (SW01)

8. 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.

11-3. 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

(TFig. 1)

Push

button. (OK if display goes on.)

• 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

FILTER

RESET TEST

SET

SWING/FIX

UNIT LOUVER

0064

0099

Unset (Setup at shipment from factory)

– 86 –

12. ADDRESS SETUP

12-1. 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)

– 87 –

12-2. 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.

12-2-1. System Configuration

1. Single

2. Twin

Outdoor

1-1

Individual

1-1

Master/Header

1-2

Indoor

(Master/Header)

Sub/Follower

Remote controller

3. Triple

1-1

Master/Header

1-2

Sub/Follower

1-3

Sub/Follower

– 88 –

4. Single group operation

• Each indoor unit controls the outdoor unit individually.

2-1

Sub/Header

1-1

Sub/Header

4-1

3-1

Sub/Header

8-1

Sub/Header

Master/Header

5. Multiple groups operation (Manual address setting)

2-1

Sub/Header

1-1

Sub/Header

1-2

3-1

3-2

3-3

Sub/Follower

Master/Header

Sub/Follower

• 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 match-

ing 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.)

– 89 –

12-2-2. 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

Change is necessary

Manually change addresses of the multiple follower units

simultaneously from the remote controller.

2-1

1-1

1-2

3-1

3-2

3-3

– 90 –

12-3. 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)

Outdoor Outdoor

• Set an indoor unit per a remote controller.

• Turn on power supply.

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

Push

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

– 91 –

12-4. 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

Unit No. 1-1 is displayed on LCD.

TEMP.

ON / OFF

(It disappears after several seconds.)

TIMER SET

TIME

FAN

SAVE

MODE

VENT

The displayed unit No. indicate line address and

indoor unit address.

Operation

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

in the group control are successively displayed.

button, the unit numbers

• The unit No. displayed at the first time indicates the

master unit address.

• Fan and louver of the selected indoor unit only

operate.

END

1 2 3

TEST

Push

button to finish the procedure.

All the indoor units in the group control stop.

– 92 –

13. DETACHMENTS

13-1. Indoor Unit

Ceiling panel: RBC-UM11PG(W)E

Preparing work:

1. Before work, be sure to stop the power supply of the air conditioner and turn off switch of the power supply

breaker. (Otherwise an electric shock may be caused.)

2. Be sure to put on the gloves when working; otherwise an injury may be caused with parts sharp edges etc.

No.

Part name

Procedure

Remarks

Suction grille

1. Detachment

Suction grille

Ceiling panel

1) Slide hooks (2 positions) of the suction grille

to inner side, and then hang down the

suction grille.

2) Take off the strap that connects the panel

and the suction grille, and then lift up shaft of

the suction grille to remove the suction grille.

Hook of suction grille

Hook hole of ceiling panel

Hook of

fall-preventive strap

2. Attachment

1) Hook shaft of the suction grille to the panel.

2) Hook strap of the suction grille to the original position of the panel.

3) Close the suction grille and slide the hooks outward to fix it.

Electric parts

cover

1. Detachment

1) Perform work of procedure

-1.

Screws

Temporary hanging hook

2) Take off screws (Ø4 × 10, 3 pcs.) fixing the

electric parts cover.

3) Remove the electric parts cover from the

temporary hanging hook of the electric parts

cover, and then open the cover.

2. Attachment

1) Close the electric parts cover and hook the

cover hole to the temporary hanging hook.

2) Tighten the fixing screws. (Ø4 × 10, 3 pcs.)

Screw

Unnecessary to remove this hook.

– 93 –

No. Part name

Procedure

Remarks

Adjust

corner cover

1. Detachment

1) Perform work of procedure of

-1.

2) Turn clockwise screws (4 positions) at the

suction port corner until adjust corner

cover rises up.

NOTE)

When you work, keep the torque at below 12N•m.

Do not use an electric screwdriver; otherwise the

mechanism of adjust corner cover may be

damaged and not be removed.

Torque~12N·m

3) Pull downward the risen-up part of adjust

corner cover and remove it.

4) Remove the strap of adjust corner cover.

2. Attachment

1) Attach the strap of adjust corner cover to

the panel, hook claws of adjust corner

cover to the panel corner, and then push

the opposite side into the panel.

2) Turn screws (4 positions) of the suction

port corner counterclockwise until bump

between adjust corner cover and panel

disappears.

NOTE)

When you work, keep the torque at below 12N•m.

Do not use an electric screwdriver;

otherwise the mechanism of adjust corner cover

may be damaged and not be removed.

Torque~12N·m

Ceiling

panel

1. Detachment

1) Perform works of procedure

-1-,

-1,

Hanging

and

-1.

section of tentative

hook of ceiling panel

2) Remove the flap connector (CN33, White,

5P) connected to the control P.C. board

and then take off the lead wire from the

clamp.

Temporary

bracket

Push to remove

Drain piping

corner

NOTE)

Remove the connectors after unlocking the lock

of the housing.

3) Take off screws (M5, 4 pcs.) fixing the

ceiling panel.

4) Push the temporary bracket to inner side

to remove the ceiling panel.

Ceiling panel

2. Attachment

Temporary

bracket

1) Hook the panel to the temporary bracket of

the drain pan of the main body.

NOTE)

The panel has directionality. Therefore mount the

panel according to the temporary bracket and the

bracket mounting position.

Washer

based screw

Hanging section

of temporary bracket

2) Tighten the fixing screws. (M5, 4 pcs.)

CN33

3) Connect flap connector of the ceiling

panel to the connector

(CN33, White, 5P) of the control

P.C. board.

Cable clamp

– 94 –

No. Part name

Procedure

Remarks

1. Detachment

1) Perform works of procedure

Control P.C.

board

-1- and

-1.

2) Remove the connectors connected from the control P.C. board to other parts.

CN33 : Flap motor (5P, White)

CN34 : Float switch (3P, Red)

CN41 : Terminal block of remote controller (3P, Blue)

CN40 : Terminal block of crossover between inside and outside (5P, Black)

CN68 : Drain pump (3P, Blue)

CN67 : Terminal block of power supply (3P, Black)

CN101: TC sensor (2P, Black)

CN102: TCJ sensor (2P, Red)

CN104: Room temp sensor (2P, Yellow)

CN333: Fan motor power supply (5P, White)

CN334: Fan motor position detection (5P, White)

NOTE)

Remove the connectors after

unlocking the lock of the housing.

Ferrite core for sensor lead

3) Unlock the lock of the card

edge spacer (6 positions)

and then remove the

control P.C. board.

Card edge spacer

Drawing-out port of lead wire Ferrite core for fan motor

2. Attachment

1) Fix the control P.C. board to the card edge spacer. (6 positions)

2) Connect the connectors as original before being removed in item 1.

NOTE)

For drawing of each wire and position of ferrite core, perform wiring same as those before remov-

ing. If there is incomplete drawing of wire, short or water leakage of the parts may be caused.

Fix the sensor lead wires with cord clamps (2 positions) so that

it does not slacken at P.C. board side and draw wires as shown in the figure.

Cord clamp

Tighten together the shield wires of the

sensor lead wires and the remote controller.

Be careful that other sensor does not fall out.

Cord clamp

Arrow view E

Please note the

float SW lead wires are

set at inner side of the

fan motor lead wires.

Turn up the sensor lead wires

and fix surely with the cord clamp.

Adhere on the

transformer.

Cord clamp

As shown in the figure,

hook the sensor lead wires

to claw of the piping cover

and then pass them so that

they are stored in the groove.

Turn up the fan motor lead wires

and fix surely with the cord clamp.

(There should be no catching of

lead wire by P.C. board.)

After mounting the piping

cover, check each lead wire

does not hit the liquid pipe.

Clamp (yellow, gray, black) lead wires

of the fan motor and arrange them

as shown in the figure.

– 95 –

No. Part name

Procedure

Remarks

1. Detachment

1) Perform works of procedure

Electric

parts box

-1-and

-1.

2) Remove connectors of the lead wire connected to the following connectors of the control

P.C. board.

CN33 : Flap motor (5P, White)

CN34 : Float switch (3P, Red)

CN68 : Drain pump (3P, Blue)

CN101: TC2 sensor (2P, Black)

CN102: TCJ sensor (2P, Red)

CN333: Fan motor power supply (5P, White)

CN334: Fan motor position detection (5P, White)

NOTE)

Remove the connectors after unlocking the lock of the housing.

3) Remove each lead wire

from cord clamps in the

electric parts box.

Ferrite core for sensor lead

4) Remove the power supply

wiring, remote controller

wiring, and crossover wiring.

5) Take off screws

(Ø4 × 10, 2 pcs.)

Card edge spacer

Drawing-out port of lead wire Ferrite core for fan motor

2. Attachment

1) Tighten screws (Ø4 × 10, 2 pcs.) fixing the electric parts box.

2) Connect the connectors as original before being removed in item 1.

3) Perform power supply wiring, remote controller wiring, and crossover wiring between inside

and outside.

NOTE)

For drawing of each wire and position of ferrite core, perform wiring same as those before remov-

ing. If there is incomplete drawing of wire, short or water leakage of the parts may be caused.

Fix the sensor lead wires with cord clamps (2 positions) so that

it does not slacken at P.C. board side and draw wires as shown in the figure.

Cord clamp

Tighten together the shield wires of the

sensor lead wires and the remote controller.

Be careful that other sensor does not fall out.

Cord clamp

Arrow view E

Please note the

float SW lead wires are

set at inner side of the

fan motor lead wires.

Turn up the sensor lead wires

and fix surely with the cord clamp.

Adhere on the

transformer.

Cord clamp

As shown in the figure,

hook the sensor lead wires

to claw of the piping cover

and then pass them so that

they are stored in the groove.

Turn up the fan motor lead wires

and fix surely with the cord clamp.

(There should be no catching of

lead wire by P.C. board.)

After mounting the piping

cover, check each lead wire

does not hit the liquid pipe.

Clamp (yellow, gray, black) lead wires

of the fan motor and arrange them

as shown in the figure.

– 96 –

No. Part name

Procedure

Remarks

Bell mouth

1. Detachment

1) Perform work of procedure

-1.

Fixing claws

for lead wires

2) Take off the lead wires of the drain pump, float

switch, and fan motor from the bell mouth.

Bell mouth

3) Take off fixing screws of the bell mouth.

(Ø4 × 10, 4 pcs.)

2. Attachment

1) Mount the bell mouth with screws.

(Ø4 × 10, 4 pcs.)

2) Perform wiring as original before being

removed.

NOTE)

Pinch lead wire of the drain pump and float switch

with lead wire fixing claws of the bell mouth and

perform wiring along the guide.

4 screws

Fixing claws

for lead wires

Turbo fan

1. Detachment

1) Perform work of procedure

-1.

Fan motor fixing

M6 nut

Drawing-out port of

fan motor lead wire

2) Take off the nut (M6 nut 1 pc.) of the turbo fan.

NOTE)

Use a box wrench for attachment and detachment of

the turbo fan. If using a monkey wrench etc, the

other parts may be damaged in work.

2. Attachment

1) Insert the turbo fan into the fan motor so that

boss of the turbo fan matches with cut surface

of the fan motor, and then tighten it with nut.

NOTE)

Tightening torque of turbo fan: 5.9 ± 0.6N.m

Apply looseness-preventing agent to the nut after

tightening.

Turbo fan

– 97 –

No. Part name

Procedure

Remarks

Fan motor

1. Detachment

1) Perform work of procedure

Fixing nut for fan motor

2) Take off screws fixed with lead holding bracket

of the fan motor. (Ø4 × 10, 2 pcs.)

3) Open wiring holding part of the fan motor lead

holding bracket and then take off the fan motor

lead wire from the bracket.

4) Take off fixing nuts for the fan motor to remove

the fan motor.(M 3 pcs.)

Fan motor

NOTE)

Use a box wrench for attachment and detachment of

the fan motor fixing nuts; otherwise contact or

damage for other parts may be caused.

Fan motor

earthh wire

Fixing screw

Holding metal fitting

for fan motor lead wire

2. Attachment

1) Mount the fan motor with the fixing nuts.

NOTE)

Tightening torque of turbo fan: 5.9 ± 0.6N.m

Apply looseness-preventing agent (as paints) to the

nut after tightening.

2) Attach the fan motor lead wire holder.

NOTE)

• For the fan motor lead wire, fix the lead wire

holding bracket along concave part of the ceiling

panel. (There is no catch-in of lead wire and ceiling

panel.)

• When fixing the lead wire bracket, tighten fan

motor earth together with the lead wire.

• For this work, do not use an electric screwdriver.

• Take note the damage of earth terminal.

3) Bend the lead wire holding part and fix the fan

motor lead wire.

Wiring holding bracket

NOTE)

Be sure that the lead wire does not come to contact

with the heat exchanger.

Fan motor lead wire

Concave part

of ceiling panel

– 98 –

No. Part name

Procedure

Remarks

Drain pan

1. Detachment

1) Perform works of procedure

2 screws

-1 and

-1.

2) Remove the drain cap and extract drain water

accumulated in the drain pan.

NOTE)

Socket of drain pan

When removing the drain cap, be sure to receive

drain water with a bucket, etc.

3) Take off screws fixing the drain pan to remove

the drain pan. (Ø4×10, 4 pcs.)

Drain pan

2. Attachment

1) Insert the drain cap into the drain pan.

NOTE)

Put a stick or others into hole at center of the drain

cap, and then insert the drain cap until it strikes on

the socket of the drain pan.

2 screws

2) Draw each lead wire to the correct positions,

and then insert the drain pan into the main

unit.

NOTE)

Piping holder rib

Draw lead wires of the drain pump and the float

switch along the guide of the cabinet. Insert the drain

pan along the guides of sensors (TC1, TC2, TCJ)

and PMV lead wire.

The drain pan and each lead wire are not caught in;

otherwise water leakage may be caused.

3) Fix the drain pan with screws. (Ø4 × 10, 4 pcs.)

Piping holder

Hose band

Lead wire

11 Drain pump

assembly

1. Detachment

Drain pummp assembly

1) Perform work of procedure

-1.

2) Pick up the hose band and slide it from the

pump connecting part to remove the drain

hose.

3) Take off screws (Ø4 × 10, 3 pcs.) fixing the

drain pump assembly, and then move hooking

claw (1 position) of the main body from the

drain pump assembly to remove the drain

pump assembly.

2. Attachment

White marked position

1) Fix the drain pump assembly as original.

Drainn hose

NOTE)

For fixing, use a hooking claw (1 position) and

screws (3 positions).

When screwing, be sure not to run on the hooking

claw at main body side.

2) Mount the drain hose and the hose band as

original.

NOTE)

Insert the drain hose up to the end of pump connect-

ing part, and then put the band at white marked

position of the hose.

Fixingg screw

for draain pump

Hooking claw

for drain pump

– 99 –

No. Part name

Procedure

Remarks

Heat

1. Detachment

exchanger

1) Recover refrigerant gas.

2) Remove the refrigerant pipe at indoor unit

side.

Pipingg cover

3) Perform work of procedure

-1.

4) Take off screws (Ø4 × 10, 3 pcs.) fixing the

piping cover to remove the piping cover.

5) While holding the heat exchanger, remove

fixing band and fixing screws (Ø4 × 10, 3 pcs.)

and then remove the heat exchanger.

2. Attachment

1) Mount parts in order, heat exchanger

→ fixing band → piping cover → drain pan

→ bell mouth → electric parts box as original.

3 screws

NOTE)

Arrange wires as original.

2) Attach the removed connectors and wires as

original.

3) Connect the refrigerant pipe as original, and

then perform vacuuming.

Fixing band

Fixing band for

heat exchanger

TCJ sensor

(Black)

TC sensor

(Red)

2 fixing screws for heat exchanger

Wind pipe cover over the header,

attach a sensor on it.

(Do not set the head of tie wrap upward.)

– 100 –

14. EXPLODED VIEWS AND PARTS LIST

14-1. Ceiling Panel

RBC-UM11PG(W)E

308

316

302

315

307

314

309

311

304

312

310

313

305

303

306

301

Location

Part No.

No.

Location

No.

Description

Part No.

Description

301

302

303

304

305

306

307

308

43109414 Grille, Air Inlet

4302C059 Motor, Louver

43180332 Air Filter

43497012 Screw

43100322 Cover, Panel Ass’y

43107259 Grille, Catch

309

310

311

312

313

314

315

316

43122091 Joint, Kit (A)

43122092 Joint, Kit (B)

43122093 Louver

43107261 Outlet, Air Form

43100369 Panel

43107262 Fix, Motor

43107263 Fix, Motor

43160580 Lead, Motor

43122089 Cover, Joint (For Joint)

43122090 Cover, Joint (For Motor)

– 101 –

14-2. Compact 4-way Air Discharge CassetteType

234

223

202

203

221

231

228

201

209

235

236

241

205

247

233

237

222

224

242, 249

238, 239,

240, 248

226

225

227

230

215

213

220

211

219 216 217

– 102 –

Model name RAV-SM

Location

No.

Part No.

Description

Fan Ass’y, Turbo

402MUT-E

452MUT-E

562MUT-E

201

202

203

205

209

211

213

215

216

217

219

220

221

222

223

224

225

226

227

228

230

231

233

234

235

236

237

238

239

240

241

242

247

248

249

43120225

43122094

43172185

43121738

4314J329

4314Q034

43047685

43149351

43047688

43149353

43147195

43049697

43170244

43079249

43060029

43163052

43119482

43170248

43119483

43097212

43019904

43179135

43139137

43162056

43177001

43151289

43179126

43166002

43166004

43166005

43166006

4318T743

43197155

43166011

431S8127

—

Bell Mouth

Pan Ass’y, Drain

Motor, Fan, SWF-230-60-1R

Refrigeration, Cycle Ass’y

Distributor Ass’y

Nut, Flare, 1/4 IN

Socket, 1/4 IN

Nut, Flare, 1/2 IN

Socket, 1/2 IN

Bonnet, 1/2 IN

Bonnet

Hose, Drain

Band, Hose

Filter, Noise

Holder, Lead, Fan Motor

Cover Ass’y Body

Hose, Drain

Cover, Pipe

Nut

Holder, Sensor

Band, Hose

Rubber, Cushion

Cover, E-Box

Pump, Drain

Switch, Float

Rubber, Pump Drain

Remote Controller, SX-A1EE

Remote Controller, SX-A11JE2

Remote Controller, EX-W2JE2

Remote Controller, WH-H1JE2

Owner’s Manual

Washer

Remote Controller, SX-A4EE

Owner’s Manual

– 103 –

402

401

405

404

403

Location

No.

Part No.

Description

401

402

43160565 Terminal Block, 3P,

AC250V, 20A,

43050425 Sensor Ass’y, Service

TC (F6)

403

404

43050426 Sensor, Service, TA

43160568 Terminal, 2P,

AC30V/DC42V, 1A

405

4316V323 P.C. Board Ass’y,

MMC-1402 (220V – 240V)

– 104 –

WARNINGS ON REFRIGERANT LEAKAGE

Important

Check of Concentration Limit

NOTE 2 :

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.

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.

(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).

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).

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.

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. 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

NOTE 1 :

Small

room

Medium

room

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.

Large room

Mechanical ventilation device - Gas leak detector

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

Motorola Mbp20 User Manual
Powerware 1085 User Manual
Roberts Gorden Uha Series 350 User Manual
Royal Sovereign Arp 5010x User Manual
Sanyo 36xs32a User Manual
Sharp R 2397 User Manual
Sharp Ux Cd600 User Manual
Toshiba Air Conditioner Rav Sm802ct E User Manual
Xerox Docucolor 250 User Manual
Xerox Workcentre 7435 User Manual