Mitsubishi Electronics Prh 5 User Manual

AIR-COOLED ROOFTOP PACKAGED AIR CONDITIONERS

Series

COOLING ONLY PR-5,8,10,15,20

HEAT PUMP

PRH-5,8,10,15,20

PRH-5,8,10,15,20-L

DATA BOOK

SAFETY FOR USE

Before conducting installation work, please read this ''SAFETY FOR USE'' carefully

for correct installation.

Since the caution items shown here contain important description relative to safety, please

observe them without fail.

Erroneous handling gives a high possibility to induce serious results such as

death or heavy injury.

Warning

Erroneous handling may induce serious injury depending on the situation.

Caution

After reading, please keep it with you together the Instruction Manual, and read it again at the

movement of the unit.

Warning

Never repair the unit, remodel or transfer it to

another site by yourself.

If they are performed improperly, water leakage, electric

shock or fire may result. If you need to have the unit

repaired or moved, consult your dealer.

The unit should not be installed by the user.

If the unit is installed improperly, explosion, water

leakage, electric shock or fire may be result.

Consult your dealer or specialist subcontractor for

repair and movement.

For installation, conduct the work correctly by

following the Installation Manual.

Improper installation may cause a fire, electrical shock

or water leakage.

Use only the specified refrigerant (R-22) to charge

the refrigerant circuit.

Do not mix it with any other refrigerant and do not allow

air to remain in the circuit.

Air enclosed in the circuit can cause high pressure resulting

in a rupture and other hazards.

Install the unit on a spot sufficiently durable against

the unit weight.

Insufficient durability can cause an injury by the falling

down of unit.

After completing installation work, make sure that

refrigerant gas has not leaked.

If refrigerant gas has leaked and exposed to fan heater,

stove, oven and so on, it may generate noxious gases.

All electric work must be performed by licensed

technician, according to local regulations and the

instructions given in this manual.

The units should be powered by dedicated power lines.

Power lines with insufficient capacity or improper

electrical work may result in electric shock or fire.

Take a proper measure to suppress the critical

concentration of refrigerant if leaked when

installing the unit in a small room.

The limit density is made not to be exceeded even if the

refrigerant leaks by any chance.

You are necessary to ventilation measures to prevent

the accident. If the refrigerant leaks, hypoxia accident

may caused.

Use only the specified cables for wiring.

The connections must be made secured without

tension the terminals.

Improper connection or fastening can cause a fire or

electrical shock.

For the countermeasure to be taken, consult your

dealer.

The unit should be installed according to the

instructions in order to minimize the risk of damage

from earthquakes, typhoons or strong winds.

Improper installation work can cause an injury by the

falling down of the unit.

The terminal block cover of unit must be firmly

attached to prevent entry of dust and moisture.

Improper mounting of the cover cause electric shock or

fire.

Use only optional parts authorised by Mitsubishi

Electric.

If the accessories are installed improperly, water

leakage, electric shock or fire may result.

Ask your dealer or an authorised company to install

them.

The unit must be installed on stable, flat surface,

in a place where there is no accumulation of snow,

leaves or rubbish.

The unit should be installed in a location where air

and noise emitted by the unit will not disturb the

neighbors.

If the unit is loosely mounted, it may fall, and cause injury.

- 2 -

Caution

Arrange the configuration of wiring not to bring up

Refrain from installing the unit in an area where

flammable gas can accumulate around the unit.

If the flammable gas can accumulate around the unit, an

explosion can occur.

When the unit is installed at telecommunication

centers or hospitals, take a proper provision

against noise.

The erroneous operation of air conditioner may be

induced by inverter equipment, independent power

device, medical equipment or communication

equipment.

While the erroneous operation of medical equipment or

communication equipment may caused by the air

conditioner.

the panel and terminal cover, and fasten the panel

and terminal cover securely.

The poor mounting of the panel or terminal cover may

cause the heat generation of the terminal connection,

a fire or electrical shock.

Do not wash the unit with water.

If washed with water, electrical shock may be caused.

Do not handle the switch with wet hands.

Otherwise electrical shock can be resulted.

Be very careful on handling the unit.

When carrying in outdoor unit, be sure to support it at

four points.

Carrying in and lifting with 3-point support may make

outdoor unit unstable, resulting in a fall of it.

The unit should not be carried by only one person if it is

more than 20kg.

For special use as for foods, animals/plants,

precision equipment or art objects, the applicability

should be confirmed beforehand.

As the use for the applications other than that

designed originally may result in the deterioration of the

quality. Consult your dealer in this regard.

Do not use the unit under a special atmosphere.

Installing the unit at the following places may cause a

trouble, a place where much machine oil, salt sonnet,

humidity or dust, spa district, a place full of sulfur gas,

volatile gas, or corrosive gas, a place near high

frequency processing machine.

Thermal insulation of the drain pipes is necessary

prevent dew condensation.

If the drain pipes are not properly insulated,

condensation will result and drip on ceiling, floor or other

possessions.

The drain piping must process by surely,and insulate

the drain piping not to be dewy.

Some units use PP bands for packing.

Do not use any PP band for delivery purpose.

Do not touch the heat exchanger fins with your bear

hands.

Doing so may cut your hands.

Be sure to safely dispose the packaging materials.

Packaging materials, such as catches and other metal

or wooden parts, may cause stabs or other injuries.

Tear off and discard plastic packing bags so that

children will not play any of them.

If children play with a plastic bag which was not torn off,

it may cause a risk of suffocation.

The base and attachments of the unit should be

periodically checked for looseness, cracks or other

damage.

If such defects are left uncorrected, the unit may fall and

cause personal injury or property damage.

When the room humidity exceeds 80% or when the

drain pipe is clogged, water may drip from the indoor

unit. The outdoor unit produces condensation during the

heating operation.

Make sure to provide drainage around the outdoor unit if

such condensation is likely to cause damage.

Turn on the main power switch more than 6 hours

before starting operation.

Do not turn the main power switch OFF during seasons

of heavy use, doing so can result In failure.

Do not touch the compressor or refrigerant piping

without wearing glove on your hands.

Touching directly such part can cause a burn or

frostbite as it becomes high or low temperature

according to the refrigerant state.

Do not touch the metal edges inside the unit

without wearing glove on your hands.

Touching directly it may injure your hands.

Do not remove the front panel or the fan guard from

the unit when it is running.

You could be injured if you touch rotating, hot or high-

voltage parts.

Install drain piping according to this Installation

Manual to ensure proper drainage.

Place thermal insulation on the pipes to prevent

condensation.

Improper drain piping may cause water leakage and

damage to furniture or other possessions.

The unit must be properly earth connected.

Do not connect the earth wire to gas pipe, city water

pipe, lightning rod or telephone earth wire.

Improper earth connection may cause electrical shock.

When installing at a watery place, provide an

electric leak breaker.

Failure to mount the electric leak breaker may cause

electrical shock.

Use breaker or fuse with proper capacity.

Make sure that there is a main power switch.

Using a wire or a copper wire instead of proper capacity

of fuse can cause fire or trouble.

Other appliances connected to the same line could cause

an overload.

Do not operate the air conditioner without the air

filter set place.

Dust may accumulate, and cause a failure.

At emergency (if you smell something burning), stop

operation and turn the power source switch off.

Continuing the operation without eliminating the

emergency state may cause a machine trouble, fire, or

electrical shock.

For the power lines, use standard cables of

sufficient current capacity.

Otherwise, current leakage, overheating or fire may

occur.

After stopping operation, be sure to wait for five

minutes before turning off the main power switch.

Otherwise, water leakage or unit failure may occur.

When installing the power lines, do not apply

tension to the cables.

The tighten or loosen the connections may cause generate

heat and cause fire.

- 3 -

A COMPLETE LINE UP

PR-5YC

PRH-5YA

PRH-5YA-L

(PRH ONLY)

Cooling capacity Heatling capacity

14,000 kcal/h

55,600 BTU/h

16.3 kW

13,000 kcal/h

51,600 BTU/h

15.1 kW

PR-8YC

PRH-8YA

PRH-8YA-L

(PRH ONLY)

Heatling capacity

19,800 kcal/h

78,600 BTU/h

23 kW

Cooling capacity

20,500 kcal/h

81,300 BTU/h

23.8 kW

PR-10YC

PRH-10YA

PRH-10YA-L

(PRH ONLY)

Cooling capacity Heatling capacity

25,500 kcal/h

101,200 BTU/h

29.7 kW

27,500 kcal/h

109,100 BTU/h

32 kW

PR-15YC

PRH-15YA

PRH-15YA-L

(PRH ONLY)

Heatling capacity

39,100 kcal/h

155,100 BTU/h

45.5 kW

Cooling capacity

39,800 kcal/h

157,900 BTU/h

46.3 kW

PR-20YC

PRH-20YA

PRH-20YA-L

(PRH ONLY)

Heatling capacity

52,600 kcal/h

208,700 BTU/h

61.2 kW

Cooling capacity

52,300 kcal/h

207,500 BTU/h

60.8 kW

- 4 -

FEATURES

High Sensible Cooling Capacity

Labor Saving Installation

The sensible cooling capacity has been significantly

improved through optimized heat exchanger design.

Because of the single unit configuration, all

refrigeration work can be omitted. The unit operation

can commence immediately after connection to the

power supply, drain piping, ducting and control

system.

Comfort Heating

The PRH series are designed to provide effective heating

even when the outside temperature is down to 0˚C. The

PRH-L series are designed to provide effective heating

even when the outside temperature is down to -10˚C.In

addition, the twin circuit models, PRH-15,20YA,

PRH-15,20YA-L are provided with control features that

prevents both refrigeration circuits defrosting at the same

time. This ensures constant comfort conditions during

defrost and varying loads.

Low Ambient Cooling

In applications with relatively high internal loads,

there may be a requirement for all series to operate

on cooling at low ambient conditions. An optional

accessory is available to maintain the refrigeration

circuit in balance at outdoor temperatures as low as

0˚C (PRH only).In case of PR,PRH-L is -5˚C.

Please consult your local Mitsubishi Electric Sales

office for application advice on this accessory.

Highly Efficient Operation

The EER (Energy Efficiency Ratio) on these models is

greatly improved by revised design specifications and by

being manufactured stringently to Mitsubishi Electric

high quality standards.

Wide Electrical Control Capability

All series may be ordered in either of two control

configurations.

The factory standard is for provision of a 24 volt

terminal block to enable a field wired control of the

contractors choice to be connected.

Flexibility of Supply Air Delivery

Alternatively, for models PR-5-10YC,PRH-5-10YA,

PRH-5-10YA-L the intelligent "K" series remote

control system may be ordered. The K control

utilizes a microprocessor and includes liquid crystal

display with touch pad for adjustment of control

parameters.

These options give the flexibility to enable

connection to Building Management Systems,

smoke spill cycles, economy cycles, remote

monitoring etc.

All series feature belt driven Supply Air fans enabling

accurate matching of actual airflow rates to the specified

quantities. Accurate commissioning is assisted by the

capability to exchange pulleys and belts if necessary to

achieve the desired air balance.

Please consult your local Mitsubishi Electric Sales

office for application advice on these controls.

- 5 -

DESCRIPTIONS

compressors, air-cooled condensers, evaporator

MITSUBISHI ELECTRIC Rooftop Air Conditioners

Series PR,PRH,RPH-L are available in a wide

range of sizes and models to enable the designer

to select the best model for each application.

The complete range has been designed for

outdoor installation, and the units are provided with

the latest technological features to ensure

economical, reliable and comfortable ducted type

air conditioning.

fans, condenser fans and auxiliary and control

equipment, completely packaged in a water-proof

enclosure.

With the development of all series demands for

such features as light weight, compactness,

increased capacity, appropriate static pressure , air

flow control, and having flexibility of inter-facing

energy saving electronic controls Mitsubishi

Electric have met market expectations.

All series units are completely assembled, wired

and strictly tested at the factory. They consist of a

MECHANICAL SPECIFICATIONS

General

Condenser Coils

All units are factory assembled, piped, internally

wired and fully charged with R-22. They are also

tested and checked under a strict quality control

system in the factory. All units are designed for

outdoor rooftop or ground level installation. Exterior

surfaces of all units are phosphatized, zinc-coated

steel with acrylic resin primer and ivory white baked

enamel finish.

Unnecessary power input due to higher

discharge pressure is avoided by high

performance designs of cross-finned coils.

Condenser coils are made of 9.52mm OD,

0.35mm thick seamless copper tubes

mechanically bonded to 0.12mm thick aluminium

plate fins. Each coil is factory pressure and leak

tested at 3.3MPa.

Refrigeration Controls

Evaporator Fans

Refrigeration controls include condenser fan,

evaporator fan and compressor contactor. Each

circuit of the unit has a separate set of refrigeration

controls. PR, PRH,PRH-L-15,20 units have two

independent circuits.

Belt-drive, forward curved, centrifugal type fans

made of galvanized steel are used to deliver an

accurate airflow at low noise level.

Condenser Fan

This direct-drive propeller fan is dynamically

balanced, to ensure smooth airflow. A weather-

proof three-phase squirrel cage induction motor

is used to drive the condenser fan.

Compressors

All units have high efficiency type hermetic line

starting compressors. Compressors are equipped

with thermal overload protector, overcurrent relay

and high pressure protection controls. Crankcase

heaters are standard .

Evaporator Coils

Highly efficient cross-finned coils are applied to

provide a larger cooling capacity with low air speed

on the coil. Coils are made of 9.52mm OD and

0.35mm thick seamless copper tubing

mechanically bonded to 0.12mm thick aluminium

fins and are factory leak tested at a pressure of

3.3MPa. They are provided with strainers attached

to the capillary tubes to further ensure a clean

system.

- 6-

TYPICAL INSTALLATION EXAMPLE

PRH

PRH-L

- 7-

SPECIFICATIONS

PR-5YC

PR-8YC

PR-10YC

PR-15YC

PR-20YC

PRH-5YA

PRH-8YA

PRH-10YA

PRH-15YA PRH-20YA

ITEM

PRH-5YA-L PRH-8YA-L PRH-10YA-L PRH-15YA-L PRH-20YA-L

BTU/h

kcal/h

16.3

55,600

14,000

23.8

81,300

20,500

19.7

29.7

101,200

25,500

25.3

46.3

157,900

39,800

38.4

60.8

207,500

52,300

50.2

TOTAL COOLING CAPACITY

(GROSS)

SENSIBLE COOLING CAPACITY

(GROSS)

BTU/h

kcal/h

44,400

11,200

15.1

67,100

16,900

86,500

21,800

130,900

33,000

45.5

171,400

43,200

61.2

TOTALHEATING CAPACITY

(GROSS)

(PRH-YA,PRH-YA-L ONLY)

BTU/h

kcal/h

51,600

13,000

78,600

19,800

0-100

109,100

27,500

155,100

39,100

208,700

52,600

CAPACITY STEPS

REFRIGERANT

0-50-100

R22(FACTORY CHARGED)

CAPILLARY TUBE

REFRIGERANT CONTROL

EXTERNAR FINISH

COLOR(MUNSELL NO.)

HEIGHT

ACRYLIC RESIN COATING

MUNSELL 5Y8/1

1,000

1,200

1,990

1,840

DIMENSION

WIDTH

DEPTH

1,000

299

1,300

1,600

393

NET WEIGHT

COMPRESSOR

MOTOR OUTPUT

INDOOR COIL

FAN

413

698

729

HERMETIC LINE START(RECIPROCATING)

3.73

5.6

7.5

5.6

7.5

CROSS FINCOIL

CENTRIFUGAL (GALVANIZED STEEL) - BELT DRIVE

THREE PHASE CAGE INDUCTION MOTOR

FAN MOTOR

FAN MOTOR OUTPUT

CMM

CFM

L/S

0.75

1.1

1.5

2.2

168

100

190

NOMINAL AIR FLOW

1,907

900

2,967

1,400

3,532

5,934

2,800

6,711

3,160

1,660

EXTERNAL STATIC

PRESSURE

mmAq

100

200

OUTDOOR COIL

FAN

CROSS FIN COIL

PROPELLER -DIRECT DRIVE

FAN MOTOR

THREE PHASE CAGE INDUCTION MOTOR

FANMOTOR OUTPUT

CMM

CFM

L/S

0.15

0.35

185

0.35

185

0.35

185

0.35

185

NOMINAL AIR FLOW

3,355

1,583

6,534

3,083

6,534

3,083

25.4

6,534

3,083

6,534

3,083

DRAIN CONNECTION

HIGHPRESSURE SWITCH,FUSE

PROTECTION DEVICES

OVER CURRENT RELAY (COMP.& INDOOR FAN,OUTDOOR FAN)

INTERNAL THERMOSTAT (COMP. & OUTDOOR FAN)

ANTISHORT-CYCLE TIMER,FREEZE & FROST PROTECTOR

NOTE 1. NOMINAL COOLING & HEATING CAPACITIES ARE BASED FOLLOWING CONDITIONS.

COOLING : INDOOR:27˚CDB, 19˚C WB ; OUTDOOR:35˚CDB.

HEATING : INDOOR:21˚CDB ; OUTDOOR:7DB, 6˚C WB.

2. CAPACITIES ARE GROSS CAPACITIES WHICH DO NOT INCLUDE A DEDUCTION FOR EVAPORATOR

FAN MOTOR HEAT.

- 8 -

ELECTRICAL DATA

Cooling

PR-5YC

PR-8YC

PR-10YC

PR-15YC

PR-20YC

PRH-5YA

PRH-8YA

PRH-10YA

PRH-15YA

PRH-20YA

VOLT

ITEM

PRH-5YA-L PRH-8YA-L

PRH-10YA-L PRH-15YA-L PRH-20YA-L

TOTAL INPUT

5.4

10.3

8.3

15.9

11.4

20.2

16.8

30.8

22.7

39.1

TOTAL RUNCURRENT

POWER FACTOR

START CURRENT

100

115

135

415V COMPRESSOR INPUT

RUNCURRENT

3.92

7.44

1.24

2.26

0.24

0.6

6.46

11.70

1.30

2.90

0.54

1.3

9.22

15.62

1.64

3.28

0.54

1.3

2 X 6.55

2 X 11.74

2.62

2 X9.30

2 X15.22

3.02

I/D FAN INPUT

RUNCURRENT

4.72

6.06

O/D FAN INPUT

RUNCURRENT

2 X 0.54

2 X 1.3

2 X0.54

2 X 1.3

TOTAL INPUT

5.4

11.2

8.3

17.3

11.4

21.9

16.8

33.6

22.7

42.6

TOTAL RUNCURRENT

POWER FACTOR

START CURRENT

109

126

147

380V COMPRESSOR INPUT

RUNCURRENT

3.92

8.06

1.24

2.48

0.24

0.66

6.46

12.71

1.30

3.17

0.54

1.42

9.22

16.90

1.64

3.58

0.54

1.42

2 X 6.55

2 X 12.80

2.62

2 X9.30

2 X16.57

3.02

I/D FAN INPUT

RUNCURRENT

5.16

6.62

O/D FAN INPUT

RUNCURRENT

2 X 0.54

2 X 1.42

2 X0.54

2 X1.42

(PRH,PRH-L Only)

Heating

PRH-5YA

PRH-8YA

PRH-10YA

PRH-15YA

PRH-20YA

VOLT

ITEM

PRH-5YA-L PRH-8YA-L PRH-10YA-L PRH-15YA-L PRH-20YA-L

4.8

9.8

7.0

14.1

9.6

18.2

14.4

27.2

19.3

34.8

TOTAL INPUT

TOTAL RUNCURRENT

POWER FACTOR

100

111

131

START CURRENT

415V COMPRESSOR INPUT

RUNCURRENT

3.32

6.94

1.24

2.26

0.24

0.6

5.16

9.90

1.30

2.90

0.54

1.3

7.42

13.62

1.64

3.28

0.54

1.3

2 X5.35

2 X9.94

2.62

2 X7.60

2 X13.07

3.02

I/D FAN INPUT

RUNCURRENT

4.72

6.06

O/D FAN INPUT

RUNCURRENT

2 X0.54

2 X 1.3

2 X0.54

2 X 1.3

4.8

10.7

7.0

15.4

9.6

20.0

14.4

29.6

19.3

38.1

TOTAL INPUT

TOTAL RUNCURRENT

POWER FACTOR

START CURRENT

109

121

143

380V COMPRESSOR INPUT

RUNCURRENT

3.32

7.56

1.24

2.48

0.24

0.66

5.16

10.81

1.30

3.17

0.54

1.42

7.42

15.00

1.64

3.58

0.54

1.42

2 X5.35

2 X10.8

2.62

2 X7.60

2 X14.32

3.02

I/D FAN INPUT

RUNCURRENT

5.16

6.62

O/D FAN INPUT

RUNCURRENT

2 X0.54

2 X1.42

2 X0.54

2 X1.42

- 9 -

CAPACITY TABLES

- 10 -

- 11 -

- 12 -

- 13 -

- 14 -

- 15 -

- 16 -

- 17 -

- 18 -

- 19 -

Operation range

PR-YC

Cooling

-10

20 2425

Indoor temp.(˚CWB)

PRH-YA

Heating

Cooling

- 5

-10

20 2425

25 27 30

Indoor temp.(˚CWB)

Indoor temp.(˚CDB)

Heating

Cooling

PRH-YA-L

- 5

-10

20 2425

25 27 30

Indoor temp.(˚CWB)

Indoor temp.(˚CDB)

- 20-

FAN PERFORMANCE

Airflow

PR-5YC

CMM

750

1230

139.7

5.5

165.1

6.5

B39

0.75

1330

139.7

5.5

PRH-5YA

PRH-5YA-L

L/S

830

1320

920

1450

1000

1450

FAN SPEED

rpm

PULLEYSIZE

inch

127

139.7

5.5

139.7

5.5

(MOTOR SIDE)

Operation range

100

PULLEYSIZE

(FAN SIDE)

BELT SIZE

inch

139.7

5.5

B36

0.75

1450

139.7

5.5

139.7

5.5

B37

0.75

1580

152.4

139.7

5.5

B37

0.75

1580

152.4

139.7

5.5

B40

1.1

1610

127

139.7

5.5

B39

1.1

1600

139.7

5.5

127

B39

1.1

Fan speed

MOTOR

(rpm)

700

600

500

400

300

200

100

FAN SPEED

PULLEYSIZE

(MOTOR SIDE)

PULLEYSIZE

(FAN SIDE)

BELT SIZE

rpm

inch

200

152.4

External

static

pressure

(Pa)

1800

1700

B38

0.75

1450

139.7

5.5

139.7

5.5

B37

0.75

1610

127

5.0

114.3

4.5

B35

0.75

MOTOR

FAN SPEED

PULLEYSIZE

(MOTOR SIDE)

PULLEYSIZE

(FAN SIDE)

BELT SIZE

rpm

inch

1600

1500

139.7

5.5

B40

1.1

114.3

4.5

B37

1.1

300

1400

MOTOR

1300

1200

FAN SPEED

PULLEYSIZE

(MOTOR SIDE)

PULLEYSIZE

(FAN SIDE)

BELT SIZE

rpm

inch

1100

400

750

830

1000

(CMM)

( / s)

MOTOR

Airflow

Std.

Airflow

CMM

L/S

1000

1170

1090

1330

1310

1500

1310

1580

1450

PR-8YC

FAN SPEED

rpm

PULLEYSIZE

(MOTOR SIDE)

PULLEYSIZE

inch

114.3

4.5

114.3

4.5

114.3

4.5

114.3

4.5

127

5.0

PRH-8YA

165.1

152.4

127

100

200

PRH-8YA-L

(FAN SIDE)

BELT SIZE

inch

6.5

B39

1.1

1230

139.7

5.5

165.1

6.5

B41

1.1

1450

127

5.0

127

5.0

B38

1.1

1580

152.4

6.0

139.7

5.5

B40

1.1

1740

152.4

6.0

127

5.0

B39

1.1

6.0

B39

1.1

1320

127

5.0

139.7

5.5

B39

1.1

1450

127

5.0

127

5.0

B38

1.1

1600

139.7

5.5

127

5.0

B39

1.1

1740

152.4

6.0

127

5.0

B36

1.5

5.0

B37

1.1

1450

127

5.0

127

5.0

B38

1.1

1580

152.4

139.7

5.5

B37

1.5

1690

177.8

7.0

152.4

6.0

B39

1.5

5.0

B37

1.5

1450

127

5.0

127

5.0

B35

1.5

1600

139.7

5.5

127

5.0

B35

1.5

5.0

B35

1.5

1580

152.4

6.0

139.7

5.5

Operation range

MOTOR

FAN SPEED

PULLEYSIZE

(MOTOR SIDE)

PULLEYSIZE

(FAN SIDE)

BELT SIZE

rpm

inch

Fan speed (rpm)

600

500

400

300

200

100

1800

1700

B37

1.5

External

static

pressure

(Pa)

MOTOR

1600

FAN SPEED

PULLEYSIZE

(MOTOR SIDE)

PULLEYSIZE

(FAN SIDE)

BELT SIZE

rpm

inch

1.5kW

1500

1400

1.1kW

300

400

500

1300

1200

1100

MOTOR

FAN SPEED

PULLEYSIZE

(MOTOR SIDE)

PULLEYSIZE

(FAN SIDE)

BELT SIZE

rpm

inch

1000

1170

1330

1500

(CMM)

(

/ s)

MOTOR

Airflow

FAN SPEED

PULLEYSIZE

(MOTOR SIDE)

PULLEYSIZE

(FAN SIDE)

BELT SIZE

rpm

inch

MOTOR

Std.

- 21 -

PR-10YC

Airflow

1500

1320

127

CMM

L/S

100

1660

110

1830

120

2000

1550

190.5

7.5

177.8

7.0

B39

2.2

PRH-10YA

PRH-10YA-L

FAN SPEED

rpm

1450

139.7

5.5

1450

139.7

5.5

PULLEYSIZE

(MOTOR SIDE)

Operation range

inch

5.0

139.7

PULLEYSIZE

(FAN SIDE)

BELT SIZE

139.7

100

200

inch

5.5

B35

1.5

1450

139.7

5.5

139.7

5.5

B36

1.5

1580

152.4

139.7

5.5

B37

1.5

1710

165.1

6.5

5.5

B36

1.5

1450

139.7

5.5

139.7

5.5

B36

1.5

1600

139.7

5.5

127

5.0

B33

2.2

1740

152.4

6.0

5.5

B33

2.2

1600

139.7

5.5

127

5.0

B33

2.2

1740

152.4

6.0

127

5.0

B34

2.2

Fan speed

MOTOR

(rpm)

600

External

static

pressure

(Pa)

FAN SPEED

PULLEYSIZE

(MOTOR SIDE)

PULLEYSIZE

(FAN SIDE)

BELT SIZE

rpm

inch

500

1800

1700

400

MOTOR

1600

300

FAN SPEED

PULLEYSIZE

(MOTOR SIDE)

PULLEYSIZE

(FAN SIDE)

BELT SIZE

rpm

inch

1500

2.2kW

300

200

1400

1.5kW

1300

100

MOTOR

FAN SPEED

PULLEYSIZE

(MOTOR SIDE)

PULLEYSIZE

(FAN SIDE)

BELT SIZE

rpm

inch

1200

100

1670

110

1830

120

2000

(CMM)

( / s)

400

139.7

5.5

B35

2.2

127

5.0

B34

2.2

1500

Airflow

MOTOR

Std.

Airflow

120

CMM

130

140

2330

690

114.3

4.5

241.3

9.5

150

2500

730

127

5.0

160

170

2830

760

127

5.0

241.3

9.5

180

PR-15YC

L/S

2000

2170

2670

3000

FAN SPEED

rpm

640

101.6

4.0

640

101.6

4.0

730

127

5.0

810

127

5.0

PRH-15YA

PRH-15YA-L

PULLEYSIZE

(MOTOR SIDE)

inch

PULLEYSIZE

(FAN SIDE)

BELT SIZE

inch

228.6

254

228.6

100

200

9.0

10.0

9.0

Operation range

B37

2.2

B37

B39

2.2

B41

B40

B39

MOTOR

2.2

810

127

5.0

2.2

850

127

5.0

2.2

890

2.2

890

2.2

910

127

5.0

FAN SPEED

PULLEYSIZE

(MOTOR SIDE)

PULLEYSIZE

(FAN SIDE)

BELT SIZE

rpm

inch

760

127

5.0

810

127

5.0

External

static

pressure

(Pa)

Fan speed

139.7

5.5

139.7

5.5

(rpm)

800

241.3

9.5

228.6

9.0

228.6

9.0

215.9

8.5

228.6

9.0

228.6

9.0

203.2

8.0

B40

B39

B38

B39

B37

700

MOTOR

2.2

910

127

5.0

2.2

910

127

5.0

2.2

910

127

5.0

2.2

970

127

5.0

2.2

1000

139.7

5.5

2.2

970

127

5.0

3.0

1040

127

FAN SPEED

PULLEYSIZE

(MOTOR SIDE)

PULLEYSIZE

(FAN SIDE)

BELT SIZE

rpm

inch

1200

600

5.0

300

400

500

600

203.2

8.0

203.2

8.0

203.2

8.0

190.5

7.5

203.2

8.0

190.5

7.5

177.8

7.0

3.0kW

2.2kW

B37

B36

B37

B36

B35

500

MOTOR

2.2

1040

127

2.2

1040

127

2.2

1040

127

2.2

1040

127

3.0

1040

127

3.0

1040

127

3.0

1100

FAN SPEED

PULLEYSIZE

(MOTOR SIDE)

PULLEYSIZE

(FAN SIDE)

BELT SIZE

rpm

inch

400

5.0

1000

177.8

7.0

177.8

7.0

177.8

7.0

177.8

7.0

177.8

7.0

177.8

7.0

900

300

B35

MOTOR

2.2

1120

127

2.2

1140

139.7

5.5

3.0

1120

127

3.0

1120

127

3.0

FAN SPEED

PULLEYSIZE

(MOTOR SIDE)

PULLEYSIZE

(FAN SIDE)

BELT SIZE

rpm

inch

800

200

5.0

700

165.1

6.5

177.8

7.0

165.1

6.5

165.1

6.5

100

600

B34

B36

B34

MOTOR

2.2

1210

127

3.0

1230

139.7

5.5

3.0

1230

139.7

5.5

3.0

FAN SPEED

PULLEYSIZE

(MOTOR SIDE)

PULLEYSIZE

(FAN SIDE)

BELT SIZE

rpm

inch

120

2000

140

2330

160

2670

180

3000

(CMM)

/ s)

5.0

(

152.4

6.0

165.1

6.5

165.1

6.5

Airflow

B33

B35

MOTOR

Std.

- 22 -

Airflow

170

2830

730

CMM

L/S

180

3000

810

190

3170

810

200

3330

840

210

3500

910

220

3670

940

FAN SPEED

rpm

PR-20YC

inch

PULLEY SIZE

127

5.0

254

10.0

B43

3.0

127

5.0

228.6

9.0

B41

3.0

910

127

5.0

203.2

8.0

127

5.0

228.6

9.0

B41

3.0

910

127

5.0

203.2

8.0

139.7

5.5

241.3

127

5.0

203.2

8.0

B39

3.0

1000

139.7

5.5

203.2

8.0

139.7

5.5

215.9

(MOTOR SIDE)

PRH-20YA

PRH-20YA-L

PULLEY SIZE

(FAN SIDE)

BELT SIZE

inch

100

200

9.5

8.5

B42

B41

MOTOR

3.0

910

127

5.0

203.2

8.0

4.0

970

127

5.0

190.5

7.5

FAN SPEED

PULLEY SIZE

(MOTOR SIDE)

PULLEY SIZE

(FAN SIDE)

BELT SIZE

rpm

inch

850

127

5.0

215.9

8.5

B40

3.0

940

139.7

5.5

215.9

8.5

External

static

pressure

(Pa)

Operation range

Fan speed

B39

B40

B38

(rpm)

MOTOR

3.0

1000

139.7

5.5

203.2

8.0

3.0

1040

127

5.0

177.8

7.0

3.0

1040

127

5.0

177.8

7.0

4.0

1040

127

5.0

177.8

7.0

B37

4.0

700

FAN SPEED

PULLEY SIZE

(MOTOR SIDE)

PULLEYSIZE

(FAN SIDE)

rpm

inch

300

400

600

1200

BELT SIZE

MOTOR

inch

B41

B40

B37

3.0

1040

127

5.0

177.8

7.0

3.0

1040

127

5.0

177.8

4.0

1060

139.7

5.5

190.5

7.5

B39

4.0

1120

127

5.0

165.1

6.5

500

FAN SPEED

PULLEY SIZE

(MOTOR SIDE)

PULLEY SIZE

(FAN SIDE)

BELT SIZE

rpm

inch

1100

400

4.0kW

3.0kW

B37

B36

1000

300

MOTOR

3.0

1140

139.7

5.5

177.8

7.0

4.0

1120

127

5.0

165.1

6.5

4.0

FAN SPEED

PULLEY SIZE

(MOTOR SIDE)

PULLEY SIZE

(FAN SIDE)

BELT SIZE

rpm

inch

900

200

500

800

B38

B36

MOTOR

100

700

FAN SPEED

PULLEY SIZE

(MOTOR SIDE)

PULLEY SIZE

(FAN SIDE)

BELT SIZE

rpm

inch

1230

139.7

5.5

165.1

6.5

600

170

2830 3000

180

200

3330

220

3670

(CMM)

B37

4.0

(

/ s)

MOTOR

Airflow

Std.

- 23 -

Pulley outside dimensions are shown below: (Unit : mm)

(1) Shape of belt groove

Sectional plan of V-belt

V-belt

thickness

(Reference)

Shape of Nominal

V-belt Dia. øP.C ( ˚

16.5mm

)

Over 125

Under 160

34 15.86

r2 r2

Over 160

12.5 5.5 9.5 19.0 12.5 0.2~0.5 0.5~1.0

1~2

16.07

16.29

Under 200

40˚

Over 200

B type

(2) Shape of motor pulley boss (Unit : mm)

PR-5 10

MOTOR

CAPACITY

PRH-5 10 Pulley for blower & motor

(kW)

+0.009

+0.073

+0.040

0.75

15.5

20.0

23.9

33.0

- 0.004

- 0.2

+0.009

- 0.004

+0.073

+0.040

1.1

1.5

- 0.2

+0.009

- 0.004

+0.073

+0.040

- 0.2

+0.009

- 0.004

+0.073

+0.040

2.2, 3.0

4.0

- 0.2

+0.009

- 0.004

+0.073

+0.040

- 0.2

+0.018

- 0.002

+0.089

+0.050

5.5

- 0.2

PR-8 20

PR-5

PRH-5

PR-15,20

PRH-8 20

PRH-15, 20 Pulley for blower & motor

MODEL

PR-5

-0.020

PRH-5

-0.007

- 0.1

PR-8,10

-0.020

-0.007

- 0.1

16.5

21.0

PRH-8, 10

- 0.036

-0.020

-0.007

PR-15,20

- 0.1

- 0.036

PRH-15, 20

(3) Shape of motor (Unit : mm)

SHAFT

Diameter

Limits

TBW

+0.009

-0.004

+0.018

-0.002

19 to 28

32 to 48

øD

Shaft

tapped

DH x EH

deep

Holes

K Dia.

A CRS

B CRS

Frame Fixing

OUT PUT Size

Shaft

General

ED DH EH AA AB BB BC

HA AC AD AE EB LL TBW TBH

0.75

1.1

125 100 50

80 10 19

90 10 24

15.5 25 M6 16 27 157 127 13.5 295

20 32 M8 19 28 174 152 38.5 320

20 32 M8 19 28 174 152 13.5 320

23.9 40 M10 22 28 184 170 15 371

23.9 40 M10 22 35 218 170 15 377

158 132 102 1.5 75 103 103

178 140 110 1.5 100 103 103

208 138 120 1.6 23 103 103

215 164 130 1.6 23 131 131

257 189 154 1.6 26 131 131

90SN 140 100 56

90N 140 125 56

1.5

2.2,3.0

4.0

100L 160 140 63 100 12 28

112M 190 140 70 112 12 28

132S 216 140 89 132 12 38

5.5

80 10 33 56 M12 28 38 243 208 53 458

- 24 -

NC CURVES

PR-5YC

PRH-5YA

PRH-5YA-L

50Hz

CONDITION

A scale

62db

63 Hz

125 Hz

250 Hz

500 Hz

1000 Hz

2000 Hz

4000 Hz

8000 Hz

COOLING &

HEATING

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

over

125

180

250

355

500

710

1000

1400

2000

2800

4000

5600

8000

all

octave-band frequency [Hz]

Note. The measuring point is 1m from the comp. service panel.

PR-8YC

PRH-8YA

PRH-8YA-L

50Hz

CONDITION

A scale

64db

63 Hz

125 Hz

250 Hz

500 Hz

1000 Hz

2000 Hz

4000 Hz

8000 Hz

COOLING &

HEATING

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

over

all

125

180

250

355

500

710

1000

1400

2000

2800

4000

5600

8000

octave-band frequency [Hz]

Note. The measuring point is 1m from the comp. service panel.

- 25 -

PR-10YC

PRH-10YA

PRH-10YA-L

50Hz

CONDITION

A scale

64db

63 Hz

125 Hz

250 Hz

500 Hz

1000 Hz

2000 Hz

4000 Hz

8000 Hz

COOLING &

HEATING

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

over

all

125

180

250

355

500

710

1000

1400

2000

2800

4000

5600

8000

octave-band frequency [Hz]

Note. The measuring point is 1m from the comp. service panel.

PR-15YC

PRH-15YA

PRH-15YA-L

50Hz

CONDITION

A scale 63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz

COOLING &

HEATING

68db

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

over

125

180

250

355

500

710

1000

1400

2000

2800

4000

5600

8000

all

octave-band frequency [Hz]

Note. The measuring point is 1m from the comp. service panel.

- 26 -

50Hz

PR-20YC

PRH-20YA

PRH-20YA-L

CONDITION

A scale

68db

63 Hz

73.5

125 Hz

250 Hz

500 Hz

1000 Hz 2000 Hz 4000 Hz 8000 Hz

COOLING &

HEATING

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

over

all

125

180

250

355

500

710

1000

1400

2000

2800

4000

5600

8000

octave-band frequency [Hz]

Note. The measuring point is 1m from the comp. service panel.

OUTLINE DIMENSIONS

PR-5YC

PRH-5YA

PRH-5YA-L

1030

16-ø3.5 HOLES

(1030)

CONDENSER AIR OUTLET

200

850

200

SUPPLY AIR DUCT FLANGE

A(DETAIL)

RETURN AIR DUCT FLANGE

6-15X25 MTG HOLES

900

210

850

900

1600

16-ø3.5 HOLES

1000

607

944

470

SUPPLY AIR

CONDENSER AIR INLET

(2 SIDES)

CONTROL BOX

RETURN AIR

54.5

971

DRAIN 1B PT

1534

WIRING HOLE

4- ø25

SASPENSION HOLES

424

1080

- 27 -

PR-8,10YC

PRH-8, 10YA

PRH-8, 10YA-L

20-ø3.5 HOLES

1330

(1330)

180

CONDENSER AIR

OUTLET

1150

SUPPLY AIR DUCT FLANGE

A(DETAIL)

RETURN AIR DUCT FLANGE

6-15X25 MTG HOLES

1200

190 190

190

1150

1200

1300

1600

20-ø3.5 HOLES

607

944

470

SUPPLY AIR

CONTROL BOX

CONDENSER AIR INLET

(2 SIDES)

RETURN AIR

54.5

1271

1380

4-ø25

SASPENSION HOLES

DRAIN 1B PT

1534

WIRING HOLE

424

PR-15,20YC

PRH-15, 20YA

PRH-15, 20YA-L

26-ø3.5 HOLES

2010

60 150 200 200 200 200 200 200 200 150

1820

CONDENSER AIR OUTLET

SUPPLY AIR DUCT FLANGE

A (DETAIL)

RETURN AIR DUCT FLANGE

1879

6-15X25 MTG HOLES

39.5

200 200 200 200 200 200 200 200 200 39.5

1820

1879

1990

26-ø3.5 HOLES

55.5

1840

717

1080

990

540

SUPPLY AIR

CONTROL BOX

CONDENSER

AIR INLET

(3 SIDES)

RETURN AIR

101

131

54.5

WIRING HOLE

DRAIN 1B PT

1742.7

1951

2060

4-ø25

54.5

556.5

SUSPENSION HOLES

- 28 -

WIRING DIAGRAMS

PR-5, 8, 10YC (STANDARD)

Power Supply

3Phase

CIRCUIT BREAKER

(FIELD SUPPLY)

380~415Volt

50Herts

PR- 5YC ···40A

PR- 8YC ···50A

PR-10YC ···60A

TB1

51C

52C

INTERNAL

RED

PROTECTOR

RED

WHITE

BLACK

WHITE

BLACK

TB2

RED

51F2

TB2

RED

MF2

BLUE

WHITE

BLACK

WHITE

BLACK

WHITE

BLACK

52F

51F1

RED

WHITE

BLACK

MF1

INTERNAL

(3.15A)

PROTECTOR

TB3

TB4

SWITCH BOX

(FIELD SUPPLY)

51F1

SW1

(3.15A)

51F2

63H

FZ1

52C

SW2

24V

220~

240V

TB4

26L

52F

FZ0

FZ1

(3MIN)

52C

8,20YC ONLY

FZ0

FZ1

52C

12 TB3

TB3

Caution,

Symbol

Name

1.To protect each Fan motors and Compressors from abnormal current,

these Over current relays<51C>,<51F1,2>are installed.

Therefore,do not change factory set value of these Over current relays.

2.To protect the compressor from frequently "ON-OFF" ,timer<TM>is

installed. Therefore,do not change factory set value of this timer.

MF1

MF2

52C

52F

TB1~4

51C

51F1, 2

63H

26L

Compressor motor

Fan motor (in door)

Fan motor (out door)

Contactor (compressor)

Contactor (fan I/D)

Terminal block

Crankcase heater

Fuse

Transformer

Over current relay(compressor)

Over current relay (fan I/D,O/D)

High-pressure switch

Thermostat(freeze protection)

Timer (anti short cycle)

Auxiliary relay (fan)

Auxiliary relay (compressor)

Auxiliary relay (check)

Switch (off)

Note:

1.The dotted lines show field wiring.

2.The figure in the parentheses show field supply parts.

3.Color of earth wire is yellow and green twisting.

4.Not specified color of wire is brown.

5.Specification subject to change without notice.

FZ0·1

30CZ

<SW1>

<SW2>

<GL>

Switch (on)

Lamp (operation)

<RL>

Lamp (check)

Thermostat (room temp.)

<23WA>

- 29 -

PR-15, 20YC (STANDARD)

CIRCUIT BREAKER

(FIELD SUPPLY)

Power supply

3Phase

380~415Volt

50Hertz

PR -15YC···100A

PR -20YC···125A

MC1

INTERNAL

PROTECTOR

52C1

51C1

TB1

Red

White

Red

White

Black

TB2

R¹¹

51F2

R₁₂

S₁₂

T₁₂

Red

Blue

S₁₁

T¹¹

White

Black

White

Black

White

Black

MF2

MC2

51C2

INTERNAL

PROTECTOR

52C2

Red

White

Black

INTERNAL

PROTECTOR

Black

TB3

51F3

Red

White

Black

White

Black

MF3

52F

51F1

Red

INTERNAL

PROTECTOR

Red

White

Black

MF1

F(3.15A)

TB4 11

TB4 14

51F1

TB5

SWITCH BOX

(FIELD SUPPLY)

FZ0

(3.15A)

CZ2-2

CZ1-2

RL1

RL2

SW1

23WA

High

Low

51F2

51F3

SW2

CZ1

CZ2

220~

240V

CZ1

CZ2

24V

51C1

51C2

TB5

52 52

C1 C2

CZ1

(3MIN)

FZ0

CH2

CZ2

FZ1

CH1

FZ0

(2SEC)

CZ1-1

CZ2-1

CZ1

CZ2

FZ1

_C3_Z20_-1

_C3_Z10_-1

_C3_Z10_-2

_C3_Z20_-2

TB4 12

TB412

Caution,

Symbol

MC1·2

Name

1.To protect each Fan motors and Compressors from abnormal current,

these Over current relays <51C1,2> , <51F1,2,3> are installed.

Therefore,do not change factory set value of these Over current relays.

2.To protect the compressors from frequently "ON-OFF" ,timer <TM> is

installed. Therefore,do not change factory set value of this timer.

3.This timer <2> installed so that two compressors may never start at

the same time. The unit stop if the set value of the timer is changed.

Compressor motor

Fan motor (in door)

Fan motor (out door)

Contactor (compressor)

Contactor (fan I/D)

Terminal block

MF1

MF2·3

52C1·2

52F

TB1~5

CH1·2

Crankcase heater

Fuse

Note:

51C1·2

Transformer

1.The dotted lines show field wiring.

Over current relay(compressor)

2.The figure in the parentheses show field supply parts.

3.Color of earth wire is yellow and green twisting.

4.Not specified color of wire is brown.

51F1~3 Over current relay (fan I/D,O/D)

63H1·2

26L1·2

High-pressure switch

Thermostat(freeze protection)

Timer (anti short cycle)

Timer

5.Specification subject to change without notice.

FZ0·1

Auxiliary relay (fan)

CZ1·2

30CZ1-1,2

30CZ2-1,2

<SW1>

<SW2>

<GL>

Auxiliary relay (compressor)

Auxiliary relay (check)

Switch (off)

Switch (on)

Lamp (power on)

<RL1·2> Lamp (check)

<23WA> Thermostat (room temp.)

- 30 -

PR-5, 8, 10YC

(SPECIAL ORDER : K CONTROL)

Power supply

3Phase

380~415Volt

50Hertz

CIRCUIT BREAKER

(FIELD SUPPLY)

INTERNAL

PR- 5YC ···40A

PR- 8YC ···50A

PR-10YC ···60A

PROTECTOR

TB1

52C

51C

Red

White

Black

Red

White

Black

51F2

TB2

Red

Blue

White

Black

S 2

MF2

52F

51F1

Red

DSA

White

Black

MF1

Blue

Green/Yellow

Black

INTERNAL

PROTECTOR

F(3.15A)

TB3 11

TH2

51F1

51F2

63H

TB4

52F

51C

TH5

52C

R/C

8,10YC ONLY

TB3 12

Caution,

Name

Symbol

To protect each Fan motors and Compressor from abnormal current,

these Over current relays<51C>,<51F1,2>are installed.

Therefore,do not change factory set value of these Over current relays.

Compressor motor

Fan motor(indoor)

Fan motor(outdoor)

Contactor(compressor)

Contactor(fan I/D)

Terminal block

Crankcase heater

Fuse

MF1

MF2

52C

52F

TB1~4

51C

51F1,2

63H

Note:

1.The dotted lines show field wiring.

2.The figure in the parentheses show field supply parts.

3.Color of earth wire is yellow and green twisting.

4.Not specified color of wire is brown.

Transformer

Over current relay(compressor)

Over current relay(fanI/D,O/D)

High-pressure switch

Auxiliary relay(fan)

5.Specification subject to change without notice.

30CZ

Auxiliary relay(compressor)

Auxiliary relay(check)

Indoor board

TH2

TH5

R/C

DSA

Thermistor(pipe)

Thermistor(room temp.)

Remote controller

Surge absorber circuit board

- 31 -

PR-5, 8, 10YC

(SPECIAL ORDER : LOW TEMPERATURE)

CIRCUIT BREAKER

Power supply

3Phase

380~415Volt

50Hertz

(FIELD SUPPLY)

INTERNAL

PR - 5YC ···40A

PR - 8YC ···50A

PR -10YC ···60A

PROTECTOR

TB1

51C

52C

Red

White

Black

Red

White

Black

51F2

TB2

52F2

TB2

Red

White

Black

Blue

White

S₁

S ₁

White

Black

MF2

Black

52F1

51F1

51F3

Red

52F3

52F4

White

Black

MF1

Black

Tr1

INTERNAL

PROTECTOR

F(3.15A)

TB3 11

51F3

TB4

SWITCH BOX

(FIELD SUPPLY)

51F1

51F2

63H

(3.15A)

SW1

FZ1

23WA

TB4

26D3

SW2

Tr2

220~

240V

24V

26D4

FZ2

26L

FZ0

52C

(3MIN)

FZ3

FZ1

52C

FZ0

FZ4

8,10YC ONLY

TB3 12

Caution,

Symbol

Name

1.To protect each Fan motors and Compressor from abnormal current,

these Over current relays<51C>,<51F1,2,3>are installed.

Therefore,do not change factory set value of these Over current relays.

2.To protect the compressor from frequently "ON-OFF" ,timer<TM>is

installed. Therefore,do not change factory set value of this timer.

Compressor motor

Fan motor (indoor)

Fan motor (outdoor)

Contactor (compressor)

Contactor (fan I/D)

Terminal block

Crankcase heater

Fuse

MF1

MF2

52C

52F1

TB1~4

Note:

1.The dotted lines show field wiring.

2.The figure in the parentheses show field supply parts.

3.Color of earth wire is yellow and green twisting.

4.Not specified color of wire is brown.

Tr1·2

51C

51F1,2,3

63H

26L

Transformer

Over current relay(compressor)

Over current relay(fanI/D,O/D)

High-pressure switch

Thermostat(freeze protection)

Timer (anti short cycle)

5.Specification subject to change without notice.

FZ0,1 Auxiliary relay (fan)

Auxiliary relay (compressor)

30CZ

<SW1>

Auxiliary relay (check)

Switch (off)

<SW2>

<GL>

<RL>

Switch (on)

Lamp (operation)

Lamp (check)

<23WA> Thermostat (room temp.)

52F2~4

FZ2~4

Contactor (fan O/D)

Auxiliary relay (fan O/D)

- 32 -

PR-15, 20YC

(SPECIAL ORDER : LOW TEMPERATURE)

CIRCUIT BREAKER

(FIELD SUPPLY)

Power supply

3Phase

380~415Volt

50Hertz

PR -15YC···100A

PR -20YC···125A

MC1

INTERNAL

PROTECTOR

52C1

51C1

TB1

Red

White

Black

Red

White

Black

TB2

R¹¹R¹¹

51F2

TB2

52F2

Red

R¹²

Red

White

Black

Blue

White

Black

White

Black

S₁₁S₁₁

T¹¹T¹¹

S₁₂S₁₂

White

Black

MF2

T¹²

51F4

MC2

51C2

INTERNAL

PROTECTOR

52C2

52F3

Red

White

Black

INTERNAL

PROTECTOR

Black

52F4

Tr1

51F3

TB3

52F5

Red

White

Black

White

Black

White

Black

MF3

51F5

52F6

52F

51F1

Red

INTERNAL

PROTECTOR

52F7

Red

Tr2

White

Black

MF1

F(3.15A)

TB4 11

TB5

SWITCH BOX

(FIELD SUPPLY)

FZ0

51F1

TB4

(3.15A)

CZ1-2

CZ2-2

RL1

RL2

SW1

23WA

51F4

51F2

51F5

High

Low

26D3

26D1

51F3

51C2

CZ1

CZ2

220 ~

240V

CZ1

CZ2

24V

51C1

TB5

52 52

C1 C2

26D4

26D2

FZ2

FZ5

CZ1

(3MIN)

FZ0

CZ2

CH2

FZ6

FZ3

FZ1

CH1

FZ0

(2SEC)

CZ1-1

CZ2-1

CZ1

CZ2

FZ1

FZ4

FZ7

_C3_Z10_-1

_C3_Z10_-2

CZ2-1

CZ2-2

TB4 12

Symbol

Name

Caution,

1.To protect each Fan motors and Compressors

from abnormal current,these Over current relays<51C1,2>,

<51F1~5>are installed.

Therefore,do not change factory set value of these Over current relays.

2.To protect the compressors from frequently "ON-OFF",timer<TM>is

installed. Therefore,do not change factory set value of this timer.

3.This timer<2>installed so that two compressors may never start at

the same time. The unit stop if the set value of the timer is changed.

Compressor motor

Fan motor (indoor)

Fan motor (outdoor)

Contactor (compressor)

Contactor (fan I/D)

Terminal block

Crankcase heater

Fuse

MC1·2

MF1

MF2·3

52C1·2

52F1

TB1~5

CH1·2

Tr1~3

51C1·2

51F1~5

63H1·2

26L1·2

Transformer

Note:

Over current relay(compressor)

Over current relay (fan I/D,O/D)

High-pressure switch

Thermostat(freeze protection)

Timer (anti short cycle)

Timer

1.The dotted lines show field wiring.

2.The figure in the parentheses show field supply parts.

3.Color of earth wire is yellow and green twisting.

4.Not specified color of wire is brown.

5.Specification subject to change without notice.

FZ0·1

Auxiliary relay (fan)

Auxiliary relay (compressor)

Auxiliary relay (check)

Switch (off)

CZ1·2

30CZ1-1, 2

30CZ2-1, 2

<SW1>

<SW2>

<GL>

Switch (on)

Lamp (operation)

<RL1·2>

Lamp (check)

<23WA>

26D1~4

52F2~7

Thermostat (room temp.)

Thermostat (ambiemt temp.)

Contactor (fan O/D)

Auxiliary relay (fan O/D)

FZ2~7

- 33 -

PR-5, 8, 10YC

(SPECIAL ORDER : K CONTROL & LOW TEMPERATURE)

CIRCUIT BREAKER

(FIELD SUPPLY)

PR - 5YC ···40A

PR - 8YC ···50A

PR -10YC ···60A

Power supply

3Phase

380~415Volt

50Hertz

INTERNAL

PROTECTOR

TB1

52C

51C

Red

White

Red

White

Black

51F2

TB2

52F2

S 2

Red

Blue

S 2

White

Black

White

Black

MF2

White

Black

52F1

51F1

51F3

Red

52F3

DSA

White

Black

MF1

Blue

Green/Yellow

Black

52F4

Tr1

INTERNAL

PROTECTOR

F(3.15A)

TB3 11

TH2

51F3

51F1

FZ1

51F2

63H

51C

26D3

TB4

FZ1

Tr2

26D4

FZ2

TH5

52C

FZ1

FZ3

52C

R/C

FZ4

8,10YC ONLY

TB3 12

Caution,

Symbol

MF1

MF2

52C

52F1

TB1~4

Name

To protect each Fan motors and Compressor from abnormal current,

these Over current relays<51C>,<51F1,2,3>are installed.

Therefore,do not change factory set value of these Over current relays.

Compressor motor

Fan motor(indoor)

Fan motor(outdoor)

Contactor(compressor)

Contactor(fan I/D)

Terminal block

Crankcase heater

Fuse

Note:

1.The dotted lines show field wiring.

2.The figure in the parentheses show field supply parts.

3.Color of earth wire is yellow and green twisting.

4.Not specified color of wire is brown.

Tr1·2

51C

51F1,2,3

63H

FZ1

Transformer

(compressor)

Over current relay

5.Specification subject to change without notice.

Over current relay(fanI/D,O/D)

High-pressure switch

Auxiliary relay(fan)

Auxiliary relay(compressor)

Auxiliary relay(check)

Indoor board

30CZ

TH2

52F2~4

FZ2~4

Thermistor(pipe)

Contactor(fan O/D)

Auxiliary relay(fan O/D)

Thermistor(room temp)

Remote controller

Surge absorber circuit board

TH5

R/C

DSA

- 34 -

PRH-5, 8, 10YA

PRH-5, 8, 10YA-L (STANDARD)

CIRCUIT BREAKER

Power Supply

3Phase

(FIELD SUPPLY)

PRH- 5YA,

PRH- 5YA-L

PRH- 8YA,

···40A

380~415Volt

50Hertz

···50A

···60A

PRH- 8YA-L

PRH-10YA,

TB1

51C

PRH-10YA-L

52C

INTERNAL

RED

PROTECTOR

RED

WHITE

BLACK

WHITE

BLACK

TB2

RED

51F2

TB2

RED

MF2

BLUE

WHITE

BLACK

WHITE

BLACK

WHITE

BLACK

52F

51F1

RED

WHITE

BLACK

MF1

INTERNAL

(3.15A)

PROTECTOR

TB3

TB4

SWITCH BOX

(FIELD SUPPLY)

51F1

SW2

SW1

(3.15A)

COOL

HEAT

51F2

63H

FZ1

52C

SW3

24V

220~

240V

TB4

26L

52F

FZ0

FZ1

52C

8,10YA,

YA-L

ONLY

(3MIN)

FZ0

FZ1

52C

12 TB3

TB3

Caution,

Symbol

Name

1.To protect each Fan motors and Compressors from abnormal current,

these Over current relays<51C>,<51F1,2>are installed.

Therefore,do not change factory set value of these Over current relays.

2.To protect the compressor from frequently "ON-OFF" ,timer<TM>is

installed. Therefore,do not change factory set value of this timer.

MF1

MF2

52C

52F

TB1~4

51C

51F1, 2

63H

Compressor motor

Fan motor (in door)

Fan motor (out door)

Contactor (compressor)

Contactor (fan I/D)

Terminal block

Crankcase heater

Fuse

Note:

1.The dotted lines show field wiring.

Transformer

2.The figure in the parentheses show field supply parts.

3.Color of earth wire is yellow and green twisting.

4.Not specified color of wire is brown.

Over current relay(compressor)

Over current relay (fan I/D,O/D)

High-pressure switch

Thermostat(freeze protection)

Thermostat (defrost)

5.Specification subject to change without notice.

26L

26D1·2

Timer (anti short cycle)

4-Way valve

Auxiliary relay (fan)

21S4

FZ0·1

30CZ

X1·2

<SW1>

<SW2>

<SW3>

<GL>

<RL>

Auxiliary relay (compressor)

Auxiliary relay (heater)

Auxiliary relay (check)

Auxiliary relay (defrost)

Switch (operation mode)

Switch (off)

Switch (on)

Lamp (operation)

Lamp (check)

Thermostat (room temp.)

<23WA>

- 35 -

PRH-15, 20YA

PRH-15, 20YA-L (STANDARD)

CIRCUIT BREAKER

(FIELD SUPPLY)

PRH-15YA

PRH-15YA-L

PRH-20YA

Power supply

3Phase

380~415Volt

50Herts

···100A

MC1

···125A

INTERNAL

PRH-20YA-L

PROTECTOR

52C1

51C1

TB1

Red

White

Red

White

Black

TB2

R¹²

51F2

Red

R¹¹

S₁₁

T¹¹

Red

Blue

White

Black

White

Black

S₁₂

T¹²

White

Black

MF2

MC2

51C2

INTERNAL

PROTECTOR

52C2

Red

White

Black

INTERNAL

PROTECTOR

Black

TB3

51F3

Red

White

Black

White

Black

MF3

52F

51F1

Red

INTERNAL

PROTECTOR

Red

White

Black

MF1

F(3.15A)

TB4 11

TB5

SWITCH BOX

(FIELD SUPPLY)

FZ0

51F1

51F2

SW1

(3.15A)

CZ2-2

CZ1-2

HEAT

COOL

RL1

RL2

SW2

TB4 13

51F3

SW3

High

Low

X1 X2

23WA

CZ1

CZ2

220~

240V

CZ1

CZ2

24V

TB5

52 52

C1 C2

S41

CZ1

(3MIN)

S42

FZ0

CH2

CZ2

FZ1

CH1

FZ0

(2SEC)

CZ1-1

CZ2-1

CZ1

CZ2

FZ1

_C3_Z20_-1

_C3_Z10_-1

_C3_Z10_-2

_C3_Z20_-2

TB4 12

Caution,

Symbol

MC1·2

Name

1.To protect each Fan motors and Compressors from abnormal current,

these Over current relays<51C1,2>,<51F1,2,3>are installed.

Compressor motor

Fan motor (in door)

Fan motor (out door)

Contactor (compressor)

Contactor (fan I/D)

Terminal block

Crankcase heater

Fuse

MF1

MF2·3

52C1·2

52F

TB1~5

CH1·2

Therefore,do not change factory set value of these Over current relays.

2.To protect the compressors from frequently "ON-OFF" ,timer<TM>is

installed. Therefore,do not change factory set value of this timer.

3.This timer<2>installed so that two compressors may never start at

the same time. The unit stop if the set value of the timer is changed.

Note:

Transformer

1.The dotted lines show field wiring.

51C1·2

51F1~3

63H1·2

26L1·2

26D1~4

Over current relay(compressor)

Over current relay (fan I/D,O/D)

High-pressure switch

Thermostat(freeze protection)

Thermostat (defrost)

Timer (anti short cycle)

Timer

2.The figure in the parentheses show field supply parts.

3.Color of earth wire is yellow and green twisting.

4.Not specified color of wire is brown.

5.Specification subject to change without notice.

21S41·42

4-Way valve

FZ0·1

CZ1·2

30CZ1-1,2

30CZ2-1,2

X1~4

<SW1>

<SW2>

<SW3>

<GL>

Auxiliary relay (fan)

Auxiliary relay (compressor)

Auxiliary relay (heater)

Auxiliary relay (check)

Auxiliary relay (defrost)

Switch (operation mode)

Switch (off)

Switch (on)

Lamp (operation)

<RL1·2>

<23WA>

Lamp (check)

Thermostat (room temp.)

- 36 -

PRH-5, 8, 10YA

PRH-5, 8, 10YA-L

(SPECIAL ORDER : K CONTROL)

CIRCUIT BREAKER

(FIELD SUPPLY)

PRH- 5YA,

···40A

Power supply

3Phase

380~415Volt

50Herts

PRH- 5YA-L

PRH- 8YA,

PRH- 8YA-L···50A

PRH-10YA,

PRH-10YA-L···60A

INTERNAL

PROTECTOR

TB1

52C

51C

Red

White

Black

Red

White

Black

51F2

TB2

Red

Blue

White

Black

S 2

MF2

52F

51F1

Red

DSA

White

Black

MF1

Blue

Green/Yellow

Black

INTERNAL

PROTECTOR

F(3.15A)

TB3 11

TH2

51F1

51F2

63H

TB4

52F

TH5

52C

R/C

8,10YA,YA-L ONLY

TB3 12

Caution,

Name

Symbol

To protect each Fan motors and Compressor from abnormal current,

these Over current relays<51C>,<51F1,2>are installed.

Therefore,do not change factory set value of these Over current

relays.

Compressor motor

Fan motor(indoor)

Fan motor(outdoor)

Contactor(compressor)

Contactor(fan I/D)

Terminal block

Crankcase heater

Fuse

MF1

MF2

52C

52F

TB1~4

Note:

1.The dotted lines show field wiring.

2.The figure in the parentheses show field supply parts.

3.Color of earth wire is yellow and green twisting.

4.Not specified color of wire is brown.

Transformer

51C

51F1,2

63H

26D1·2

21S4

Over current relay(compressor)

Over current relay(fanI/D,O/D)

High-pressure switch

Thermostat(defrost)

5.Specification subject to change without notice.

4-Way valve

Auxiliary relay(fan)

30CZ

X1·2

Auxiliary relay(compressor)

Auxiliary relay(heater)

Auxiliary relay(check)

Auxiliary relay(defrost)

Indoor board

TH2

TH5

R/C

DSA

Thermistor(pipe)

Thermistor(room temp.)

Remote controller

Surge absorber circuit board

- 37 -

PRH-5, 8, 10YA

PRH-5, 8, 10YA-L

(SPECIAL ORDER : LOW TEMPERATURE)

CIRCUIT BREAKER

(FIELD SUPPLY)

PRH- 5YA,

···40A

Power supply

3Phase

PRH- 5YA-L

INTERNAL

PRH- 8YA,

PRH- 8YA-L

PRH-10YA,

···50A

380~415Volt

50Herts

PROTECTOR

···60A

TB1

51C

52C

PRH-10YA-L

Red

White

Black

Red

White

Black

51F2

TB2

52F2

TB2

Red

White

Black

Blue

S₁

S ₁

White

Black

White

Black

MF2

52F1

51F1

51F3

Red

52F3

52F4

White

Black

MF1

Black

Tr1

INTERNAL

PROTECTOR

F(3.15A)

TB3 11

51F3

TB4

SWITCH BOX

(FIELD SUPPLY)

51F1

51F2

63H

SW1

COOL

TB313

(3.15A)

HEAT

SW2

FZ1

26D3

SW3

23WA

Tr2

220~

240V

24V

26D4

FZ2

TB4

26L

FZ0

52C

(3MIN)

FZ3

FZ1

52C

FZ0

FZ4

8,10YA,

YA-L ONLY

TB3 12

Caution,

Symbol

Name

1.To protect each Fan motors and Compressor from abnormal current,

these Over current relays<51C>,<51F1,2,3>are installed.

Therefore,do not change factory set value of these Over current relays.

2.To protect the compressor from frequently "ON-OFF",timer<TM>is

installed. Therefore,do not change factory set value of this timer.

Compressor motor

Fan motor (indoor)

Fan motor (outdoor)

Contactor (compressor)

Contactor (fan I/D)

Terminal block

Crankcase heater

Fuse

MF1

MF2

52C

52F1

TB1~4

Note:

1.The dotted lines show field wiring.

2.The figure in the parentheses show field supply parts.

3.Color of earth wire is yellow and green twisting.

4.Not specified color of wire is brown.

Tr1·2

51C

51F1,2,3

63H

26L

26D1~4

21S4

Transformer

Over current relay(compressor)

Over current relay(fanI/D,O/D)

High-pressure switch

Thermostat(freeze protection)

Thermostat (defrost)

5.Specification subject to change without notice.

Timer (anti short cycle)

4-Way valve

FZ0,1 Auxiliary relay (fan)

Auxiliary relay (compressor)

Auxiliary relay (heater)

Auxiliary relay (check)

Auxiliary relay (defrost)

Switch (operatin mode)

Switch (off)

30CZ

X1·2

<SW1>

<SW2>

<SW3>

<GL>

Switch (on)

Lamp (operation)

<RL>

Lamp (check)

<23WA>

52F2~4

FZ2~4

Thermostat (room temp.)

Contactor (fan O/D)

Auxiliary relay (fan O/D)

- 38 -

PRH-15, 20YA

PRH-15, 20YA-L

(SPECIAL ORDER : LOW TEMPERATURE)

CIRCUIT BREAKER

(FIELD SUPPLY)

PRH-15YA

Power supply

3Phase

380~415Volt

50Herts

···100A

PRH-15YA-L

PRH-20YA

MC1

INTERNAL

···125A

PROTECTOR

PRH-20YA -L

52C1

51C1

TB1

Red

White

Black

Red

White

Black

TB2

R¹¹R¹¹

51F2

TB2

52F2

Red

R¹²

S₁₂S₁₂

T¹²T¹²

R¹²

Red

Blue

White

Black

S₁₁S₁₁

T¹¹T¹¹

White

Black

White

Black

White

Black

MF2

51F4

MC2

51C2

INTERNAL

PROTECTOR

52C2

52F3

Red

White

Black

INTERNAL

PROTECTOR

Black

52F4

Tr1

51F3

TB3

52F5

Red

White

Black

White

Black

White

Black

MF3

51F5

52F6

52F

51F1

Red

INTERNAL

PROTECTOR

52F7

Red

Tr2

White

Black

MF1

F(3.15A)

TB4 11

TB5

SWITCH BOX

(FIELD SUPPLY)

FZ0

51F1

TB4 14

SW1

(3.15A)

CZ1-2

CZ2-2

HEAT

COOL

RL1

RL2

SW2

TB4 13

51F4

51F2

51F5

26D3

26D1

51F3

SW3

High

Low

X1 X2

23WA

CZ1

CZ2

220~

240V

CZ1

CZ2

24V

TB5

52 52

C1 C2

26D4

S41

26D2

FZ2

FZ5

S42

CZ1

(3MIN)

FZ0

CH2

CZ2

FZ6

FZ3

FZ1

CH1

FZ0

(2SEC)

CZ1-1

CZ2-1

CZ1

CZ2

FZ1

FZ4

FZ7

_C3_Z10_-1

_C3_Z10_-2

CZ2-1

CZ2-2

TB4 12

Symbol

Name

Caution,

1.To protect each Fan motors and Compressors

Compressor motor

Fan motor (indoor)

Fan motor (outdoor)

Contactor (compressor)

Contactor (fan I/D)

Terminal block

Crankcase heater

Fuse

MC1·2

MF1

MF2·3

52C1·2

52F1

TB1~5

CH1·2

from abnormal current,these Over current relays<51C1,2>,

<51F1~5>are installed.

Therefore,do not change factory set value of these Over current relays.

2.To protect the compressors from frequently "ON-OFF",timer<TM>is

installed. Therefore,do not change factory set value of this timer.

3.This timer<2>installed so that two compressors may never start at

the same time. The unit stop if the set value of the timer is changed.

Tr1~3

Transformer

Note:

51C1·2

51F1~5

63H1·2

26L1·2

26D1~4

Over current relay(compressor)

Over current relay (fan I/D,O/D)

High-pressure switch

Thermostat(freeze protection)

Thermostat (defrost)

Timer (anti short cycle)

Timer

1.The dotted lines show field wiring.

2.The figure in the parentheses show field supply parts.

3.Color of earth wire is yellow and green twisting.

4.Not specified color of wire is brown.

5.Specification subject to change without notice.

4-Way valve

21S41·42

FZ0·1

CZ1·2

30CZ1-1, 2

30CZ2-1, 2

X1~4

<SW1>

<SW2>

<SW3>

<GL>

Auxiliary relay (fan)

Auxiliary relay (compressor)

Auxiliary relay (heater)

Auxiliary relay (check)

Auxiliary relay (defrost)

Switch (operation mode)

Switch (off)

Switch (on)

Lamp (operation)

<RL1·2>

Lamp (check)

<23WA>

26D1~4

52F2~7

Thermostat (room temp.)

Thermostat (ambiemt temp.)

Contactor (fan O/D)

Auxiliary relay (fan O/D)

FZ2~7

- 39 -

PRH-5, 8, 10YA

PRH-5, 8, 10YA-L

(SPECIAL ORDER : K CONTROL & LOW TEMPERATURE)

CIRCUIT BREAKER

(FIELD SUPPLY)

PRH- 5YA,

···40A

Power supply

PRH- 5YA-L

3Phase

PRH- 8YA,

···50A

380~415Volt

50Hertz

PRH- 8YA-L

PRH- 10YA

INTERNAL

···60A

PROTECTOR

PRH-10YA-L

TB1

52C

51C

Red

White

Red

White

Black

51F2

TB2

52F2

S 2

Red

Blue

S 2

White

Black

White

Black

MF2

White

Black

52F1

51F1

51F3

Red

52F3

DSA

White

Black

MF1

Blue

Green/Yellow

Black

52F4

Tr1

INTERNAL

PROTECTOR

F(3.15A)

TB3 11

TH2

51F3

TB3 13

51F1

FZ1

51F2

63H

26D3

TB4

FZ1

Tr2

26D4

FZ2

TH5

52C

FZ1

FZ3

52C

R/C

FZ4

8,10YA,YA-L ONLY

TB3 12

Caution,

Symbol

Name

To protect each Fan motors and Compressor from abnormal current,

these Over current relays<51C>,<51F1,2,3>are installed.

Therefore,do not change factory set value of these Over current relays.

Compressor motor

Fan motor(indoor)

Fan motor(outdoor)

Contactor(compressor)

Contactor(fan I/D)

Terminal block

MF1

MF2

52C

52F1

TB1~4

Note:

1.The dotted lines show field wiring.

Crankcase heater

Fuse

2.The figure in the parentheses show field supply parts.

3.Color of earth wire is yellow and green twisting.

4.Not specified color of wire is brown.

Tr1·2

51C

51F1,2,3

63H

26D1~4

21S4

FZ1

30CZ

X1·2

Transformer

(compressor)

Over current relay

5.Specification subject to change without notice.

Over current relay(fanI/D,O/D)

High-pressure switch

Thermostat(defrost)

4-Way valve

Auxiliary relay(fan)

Auxiliary relay(compressor)

Auxiliary relay(heater)

Auxiliary relay(check)

Auxiliary relay(defrost)

Indoor board

TH2

52F2~4

FZ2~4

Thermistor(pipe)

Contactor(fan O/D)

Auxiliary relay(fan O/D)

Thermistor(room temp)

Remote controller

Surge absorber circuit board

TH5

R/C

DSA

- 40 -

ELECTRICAL OPERATION FLOW CHARTS

PR-5, 8, 10YC

START

POWER ON

CH ON

GL ON

30CZ ON (SELF HOLD)

SW2 ON?

YES

FZ0,1 ON (SELF HOLD)

52F ON

MF1 OPERATE

YES

23WA ON?

YES

CZ ON

TM ON

PASS THE 3 MIN.?

YES

52C ON

MC OPERATE

MF2 OPERATE

CH OFF

SAFETY

DEVICE OFF?

YES

30CZ OFF

52C OFF

MC STOP

MF2 STOP

RL ON

CH ON

SERVICE CALL

- 41 -

PRH-5, 8, 10YA

PRH-5, 8, 10YA-L

START

POWER ON

CH ON

GL ON

30CZ ON (SELF HOLD)

SW3 ON?

YES

FZ0,1 ON (SELF HOLD)

52F ON

MF1 OPERATE

SW1 COOL?

HZ ON

YES

21S4 ON

23WA ON?

YES

CZ ON

YES

CZ ON

TM ON

PASS THE 3 MIN.?

YES

PASS THE 3 MIN.?

YES

52C ON

MC OPERATE

MF2 OPERATE

52C ON

MC OPERATE

MF2 OPERATE

CH OFF

SAFETY

DEVICE OFF?

CONDENSING

TEMP. -12˚C?

YES

30CZ OFF

YES

26D1, 2 ON

52C OFF

MC STOP

MF2 STOP

X1 ON

X2 ON (SELF HOLD)

RL ON

CH ON

21S4 OFF

MF2 STOP

SERVICE CALL

CONDENSING

TEMP. 6˚C?

YES

26D1, 2 OFF

X1, 2 OFF

21S4 ON

MF2 OPERATE

- 42 -

PR-15, 20YC

START

POWER ON

CH1, 2 ON

GL ON

30CZ1, 30CZ2 ON (SELF HOLD)

SW2 ON?

YES

FZ0, FZ1 ON (SELF HOLD)

52F ON

MF1 OPERATE

YES

23WA No.1 ON?

YES

CZ1 ON

TM1 ON

PASS THE 3 MIN.?

YES

52C1 ON

MC1 OPERATE

MF2 OPERATE

CH1 OFF

23WA No.2 ON?

YES

CZ2 ON

TM2 ON

PASS THE 2 SEC.?

YES

52C2 ON

MC2 OPERATE

MF3 OPERATE

CH2 OFF

No.2 SAFETY

DEVICE OFF?

No.1 SAFETY

DEVICE OFF?

YES

30CZ2 OFF

YES

30CZ1 OFF

52C2 OFF

MC2 STOP

MF3 STOP

52C1 OFF

MC1 STOP

MF2 STOP

RL2 ON

RL1 ON

CH1 ON

CH2 ON

SERVICE CALL

- 43 -

PRH-15, 20YA

PRH-15, 20YA-L

HZ ON

START

POWER ON

21S41, 2 ON

CH1, 2 ON

23WA No.2 ON?

GL ON

YES

CZ1 ON

30CZ1, 30CZ2 ON (SELF HOLD)

TM1 ON

SW3 ON?

YES

PASS THE 3 MIN.?

FZ0, FZ1 ON (SELF HOLD)

YES

52F ON

MF1 OPERATE

TM2 ON

PASS THE 2 SEC.?

YES

SW1 COOL?

YES

52C2 ON

MC2 OPERATE

MF3 OPERATE

23WA No.1 ON?

YES

CH2 OFF

CZ1 ON

TM1 ON

23WA No.1 ON?

YES

PASS THE 3 MIN.?

YES

52C1 ON

MC1 OPERATE

MF2 OPERATE

52C1 ON

MC1 OPERATE

MF2 OPERATE

CH1 OFF

No.1 CONDENSING

TEMP. -12˚C?

23WA No.2 ON?

YES

26D1, 3 ON

YES

CZ2 ON

X1 ON

X3 ON (SELF HOLD)

No.2 CONDENSING

TEMP. -12˚C?

TM2 ON

21S41 OFF

MF2 STOP

YES

PASS THE 2 SEC.?

YES

26D2, 4 ON

X2 ON

No.1 CONDENSING

X4 ON (SELF HOLD)

52C2 ON

MC2 OPERATE

MF3 OPERATE

TEMP. 6˚C?

21S42 OFF

MF3 STOP

YES

26D1, 3 OFF

CH2 OFF

No.2 SAFETY

DEVICE OFF?

X1, 3 OFF

No.2 CONDENSING

No.1 SAFETY

DEVICE OFF?

TEMP. 6˚C?

YES

21S41 ON

MF2 OPERATE

30CZ2 OFF

YES

30CZ1 OFF

52C2 OFF

MC2 STOP

MF3 STOP

YES

No.1 DEFROST

OPERATION?

52C1 OFF

MC1 STOP

MF2 STOP

RL2 ON

21S42 ON

MF2 OPERATE

RL1 ON

CH1 ON

CH2 ON

SERVICE CALL

- 44 -

REFRIGERANT SCHEMATICS

PR-5YC

Condenser

Evaporator

ø19.05

High

Check

pressure

joint

switch

ø19.05

Check

joint

Pressure

gauge

ø12.7

Check

joint

ø22.2

Check

joint

Compressor

Capillary

Tube

ø12.7

Strainer

Dryer

: OPTION

Notes: This schematics shows one refrigerant cycle.

PR-15,20YC or PRH-15,20YA or PRH-15,20YA-L is

composed of two refrigerant cycles.

PR-8, 10, 15, 20YC

Condenser

Evaporator

ø19.05

High

pressure

switch

Check

joint

ø19.05

Check

joint

Pressure

gauge

ø12.7

Check

joint

ø22.2

Check

joint

Compressor

Capillary

Tube

ø12.7

Strainer

Dryer

: OPTION

- 45 -

PRH-5YA

Condenser

Evaporator

ø19.05

High

pressure

switch

4-Way

valve

Check

joint

Check

joint

ø19.05

Pressure

gauge

ø12.7

Check

joint

ø22.2

Check

joint

Compressor

Capillary

Tube

Capillary

Tube

ø12.7

Strainer

Check Strainer

valve

Dryer

: OPTION

Notes: This schematics shows one refrigerant cycle.

PR-15,20YC or PRH-15,20YA or PRH-15,20YA-L is

composed of two refrigerant cycles.

PRH-8, 10, 15, 20YA

Condenser

Evaporator

8, 15YA: ø22.0

10, 20YA: ø25.4

High

pressure

switch

4-Way

valve

Check

joint

8, 15YA: ø22.0

10, 20YA: ø25.4

Pressure

gauge

Muffler

ø15.88

Check

joint

Check

joint

ø25.4

Check

joint

Compressor

Capillary

Tube

Capillary

Tube

ø12.7

Strainer

Check Strainer

valve

Dryer

: OPTION

- 46 -

PRH-5YA-L

Condenser

Evaporator

ø19.05

High

pressure

switch

4-Way

valve

Check

joint

Check

joint

ø19.05

Pressure

gauge

ø12.7

Check

joint

ø22.2

Check

joint

Accumulator

Compressor

Capillary

Tube

Capillary

Tube

ø12.7

Strainer

Check Strainer

valve

Dryer

: OPTION

Notes: This schematics shows one refrigerant cycle.

PR-15,20YC or PRH-15,20YA or PRH-15,20YA-L is

composed of two refrigerant cycles.

PRH-8, 10,15,20YA-L

Condenser

Evaporator

8,15YA-L: ø22.0

10,20YA-L: ø25.4

High

pressure

switch

4-Way

valve

Check

joint

8,15YA-L: ø22.0

10,20YA-L: ø25.4

Pressure

gauge

Muffler

ø15.88

Check

joint

Check

join_øt_25.4

Check

joint

Accumulator

Compressor

Capillary

Tube

Capillary

Tube

ø12.7

Strainer

Check Strainer

valve

Dryer

: OPTION

- 47 -

SAFETY & CONTROL DEVICES

PR-5YC

PRH-5YA

PRH-5YA-L

PR-8YC

PRH-8YA

PRH-8YA-L

PR-10YC

PRH-10YA

PRH-10YA-L

ITEM

NO.

COMPRESSOR OVER CURRENT RELAY

COMPRESSOR INTERNAL THERMOSTAT

HIGH PRESSURE SWITCH

51C

26.0A

27.5A

120˚C OFF

2.94MPa OFF

-2˚C IN

31.0A

110˚C OFF

130˚C OFF

63H

26L

26D1,2

51F1

51F2

FREEZE PROTECTOR

FROST PROTECTOR (ONLY PRH-YA,PRH-YA-L)

INDOOR FAN MOTOR OVER CURRENT RELAY

OUTDOOR FAN MOTOR OVER CURRENT RELAY

OUTDOOR FAN MOTOR INTERNAL THERMOSTAT

FUSE (CONTROL CIRCUIT)

-12˚C IN, 6˚C OUT

3.2A

2.3A

3.6A

2.0A

150˚C OFF

3.15A

FUSE (OPERATION CIRCUIT)

3.15A

OUTDOOR FAN MOTOR OVER CURRENT RELAY

(USE THE OPTIONAL PARTS : LOW AMBIENT PARTS)

51F3

NO.

2.0A

PR-15YC

PRH-15YA

PRH-15YA-L

PR-20YC

PRH-20YA

PRH-20YA-L

ITEM

COMPRESSOR OVER CURRENT RELAY

COMPRESSOR INTERNAL THERMOSTAT

HIGH PRESSURE SWITCH

51C1,2

27.5A

31.0A

63H1,2

26L1,2

26D1,2,3,4

51F1

51F2,3

120˚C OFF

130˚C OFF

2.94MPa OFF

FREEZE PROTECTOR

-2˚C IN

FROST PROTECTOR (ONLY PRH-YA,PRH-YA-L)

INDOOR FAN MOTOR OVER CURRENT RELAY

OUTDOOR FAN MOTOR OVER CURRENT RELAY

OUTDOOR FAN MOTOR INTERNAL THERMOSTAT

FUSE (CONTROL CIRCUIT)

-12˚C IN, 6˚COUT

5.0A

6.6A

2.0A

150˚C OFF

3.15A

FUSE (OPERATION CIRCUIT)

3.15A

OUTDOOR FAN MOTOR OVER CURRENT RELAY

(USE THE OPTIONAL PARTS : LOW AMBIENT PARTS)

51F4,5

2.0A

ACCESSORY AVAILABILITY

PARTS CODE

PRH-8YA

MODEL NAME

DESCRIPTION

PR-5YC

PRH-5YA

PRH-5YA-L

PR-8YC

PRH-8YA-L

PR-10YC

PRH-10YA

PRH-10YA-L

PR- YC-K

PRH- YA-K

PRH- YA-LK

PR- YC

K-Remote controller

PAC-201LC

PAC-202LC

PAC-203LC

PRH- YA

PRH- YA-L

PR- YC

PRH- YA

PRH- YA-L

PR- YC

PAC-201LC

PAC-202LC

PAC-203LC

Lowtemperaturecooling

Pressuregauge

Finguard

PAC-201LC

PAC-202LC

PAC-203LC

PAC001PG

PAC002PG

PAC003PG

PAC001PG

PAC002PG

PAC003PG

PAC001PG

PAC002PG

PAC003PG

PAC101FG

PAC102FG

PAC103FG

PRH- YA

PRH- YA-L

PAC101FG

PAC102FG

PAC103FG

PAC101FG

PAC102FG

PAC103FG

PARTS CODE

DESCRIPTION

MODEL NAME

PR-15YC

PRH-15YA

PRH-15YA-L

PR-20YC

PRH-20YA

PRH-20YA-L

PR- YC

PAC-201LCX2(PCS)

Lowtemperaturecooling

PRH- YA

PRH- YA-L

PR- YC

PAC-201LCX2(PCS)

PAC001PGX2(PCS)

Pressuregauge

Finguard

PRH- YA

PRH- YA-L

PR- YC

PRH- YA

PRH- YA-L

PAC001PGX2(PCS)

PAC104FG

PAC105FG

PAC104FG

PAC105FG

PAC104FG

PAC105FG

:Factory install

:Field install

- 48 -

PHYSICAL DATA

[PRODUCT]

ROOFTOP AIR-COOLED HEATPUMP PACKAGED AIR CONDITIONERS

Product type

PR,PRH,PRH-L SERIES

PR-10YC

Product number: Cooling type

PR-5YC

PR-8YC

PR-15YC

PR-20YC

Product number: Heat pump

PRH-5YA

PRH-5YA-L

PRH-8YA

PRH-10YA

PRH-10YA-L

PRH-15YA

PRH-15YA-L

PRH-20YA

PRH-20YA-L

PRH-8YA-L

28.1

23.8

19.7

8.3

Capacity

17.6

16.3

35.2

52.8

46.3

38.4

16.8

0.18

45.5

14.4

70.3

60.8

50.2

22.7

0.11

61.2

19.3

Coolingcapacity(AS1861)

29.7

SensibleCooling capacity(AS1861)

Cooling power consumption(Input)

ByPass Factor

25.3

5.4

11.4

0.19

15.1

4.6

0.24

0.18

Heating capacity (AS1861) (Only PRH-YA,PRH-YA-L)

Heating power consumption (Only PRH-YA,PRH-YA-L)

9.6

[ELECTRICAL]

Design voltage

Cycles

Volts

415

Phases

Power supply

Control voltage

Maximum voltage

Minimum voltage

Approx. starting current

Volts

Amps

415

240/24

415

380

100

115

135

Unit current (Nominal voltage and AS1861

maximum conditions)

Amps

12.8

20.6

25.7

37.9

50.9

Fan motorhp

Amps

rpm

1.0

1.5

Fan motorcurrent

Fan motor speed

[COMPRESSOR]

Make

2.26

1,400

2.90

1,410

3.28

4.72

1,420

6.06

COPELAND

Model

CRNQ-0500-TFD QR90K1-TFD

QR12M1-TFD

QR90K1-TFD

QR12M1-TFD

Type

HERMETIC LINE START (RECIPROCATING)

Quantity

Nominalmotorhp

Locked rotor current

Normalrun current(AS1861)

Swept volume

Amps

cc/rev

7.5

59.5

7.65

101.92

49.78

26.19

83.4

11.7

177.45

95.2

15.62

221.8

83.4

95.2

2✕

11.74

15.22

177.45

✕221.8

Bore

55.58

Stroke

18.29

22.86

2,900

18.29

22.86

Speed

rpm

Numberof cylinders

Oil charge

2,070

3,250

2✕3,250

Type of oil

Calumet R015 or Witco 3GS

watts

2✕70

Crankcase heater

[REFRIGERATION SYSTEM]

Refrigerant

R22

5.8

Refrigerant charge per circuit

Numberof refrigerant controls

Refrigerant control

Reverse cycle valve (Only PRH-YA,PRH-YA-L)

3.6

4.6

2✕4.6

2✕5.8

Capillary tube

4-Way valve

Reverse cycle defrost

Defrost system (Only PRH-YA,PRH-YA-L)

[EVAPORATOR]

Quantity

Facearea

sq.m

0.53

0.69

2✕0.65

Rows deep

Rows high

Finned length

Face velocity

Fins per meter

Fin materialthickness

Finmaterial

m/s

800

1.7

512

1,046

2.4

2✕850

2.0

2.2

2.4

512

0.12

473

2.11

512

1.95

Aluminium

1.95

Fins pitch

1.95

Tube diameter

Gauge of copper tube

Numberof circuits

9.52

0.35

- 49 -

[PRODUCT]

ROOFTOP PACKAGE AIR COOLED HEATPUMP AND COOLING ONLY UNITS

PRH SERIES

Product type

Product number : Heat pump

[INDOOR AIR CIRCUIT]

Number of blowers

PRH-5YA

PRH-8YA

PRH-10YA

PRH-15YA

PRH-20YA

Diameterof blowers

253

393

282

Width of blowers

Blower drive

182

Beltdrive

1.5

Fan motor output

Normal fan motor run current

Air quantity

0.75

2.26

900

1.1

2.2

3.0

2.90

1,400

3.28

4.72

2,800

6.06

3,160

L/s

1,660

Externalstatic pressure

100

200

Supply air dimensions(h

Return air dimensions(h

[CONDENSER]

Quantity

mm ✕mm

300 ✕850

410 ✕900

300 ✕1,150

410 ✕1,200

428 ✕1,820

464 ✕1,879

✕w)

mm ✕mm

1.3

1.12

1.46

2✕1.32

Facearea

sq.m

2✕1.07

Rows deep

Rows high

Finned length

Face velocity

m/s

1,700

1.2

473

1,920

2✕1,400

2.8

2.1

473

0.12

2.9

2.3

Fins per meter

Fin material thickness

Fin material

473

Aluminium

Fins pitch

2.11

9.52

0.35

2.11

Tube diameter

Gauge of copper tube

Numberof circuits

[OUTDOOR AIR CIRCUIT]

Number of fans

600

Diameter of fans

800

645

Pitch of fans

Fan drive

990

Direct drive

Fan motor output

Quantity

0.15

0.35

2✕0.35

Normal fan motor run current

Fan motor speed

Amps

rpm

0.6

650

1.3

2✕1.3

Air quantity

L/s

1,583

3,083

1,300

2✕3,083

[ENCLOSURE AND FRAME]

height

1,000

1,600

1,200

1,990

1,840

Dimension

Color

width

depth

1,000

Munsell 5Y8/1

Panel thickness

1.2

Condensate drain size

25.4

Weight

299

393

413

698

729

Sound power level

Sound pressure level

dbA

- 50 -

INSTALLATION

All series of air conditioners are designed for outdoor installations and are to be placed on a slab or

rooftop, however if the air conditioner is to be installed in a plant room application, please contact your

equipment supplier prior to installation.

Access for both service and installation must be provided to the compressors, control wiring and fans as

shown below.

1.Clearances

(1) Care must be taken to prevent recirculation of

the condenser air. To stabilize compressor

condensing pressures it is recommended that

wherever possible the condenser air inlet side

be faced away from prevailing winds.

(2) For rooftop installation, the type of mounting

base depends on the roof construction. A built-

up roof may not support the weight of the unit

and so it may be necessary to support the unit

by adding structural members below it.

(3) The units are equipped with hoisting

plates for rigging and hoisting of the unit.

The hoisting plates are located in the base

of the unit.

When hoisting the unit with a crane,

spreader bars must be used to prevent

damage to side panels by the supporting

cables.

PR-15,20YC

PRH-15,20YA

PRH-15,20YA-L

PR-5 10YC

PRH-5~10YA

PRH-5~10YA-L

300mm(min. clearance)

Condenser inlet

1,000mm(min. clearance)

Evaporator coil service

Condenser inlet

700mm(min. clearance)

Electrical

control circuit

1,000mm(min. clearance)

and compressor

Evaporator coil service

service

Condenser inlet

300mm(min. clearance)

1,000mm(min. clearance)

Evaporator coil service

1,500mm(min. clearance)

Condenser outlet

1,500mm(min. clearance)

Condenser outlet

2.Roof Mounting

(1) The figure shows the use of the roof curb available

for mounting these units.

(2) The curb should be sealed and fixed to the roof by

weather stripping. A suggested means of sealing

the unit and roof curb is shown below.

4-ø15roof mounting holes

6-ø15

Roof curb

Unit mounting holes

Unit

Seal with tar

Roof deck

Roof curb

- 51 -

3.Duct Work

PRH unit

Vertical air

plenum

(1) All series units are equipped with horizontal

supply and return air openings. Duct connection to

the unit should be made with duct flanges and

secured directly to the air openings with flexible

duct connectors to avoid normal noise transmission.

Plenum

divider

Insulation

Roof curb

(2) For vertical air supply, a field supply plenum should

be used.

The figure below shows the recommended method

for duct connection.

Roof curb

Duct

(3) To prevent air leakage, all duct seams should be

taped.

Roof line

Duct

Singleduct

divider

Ducts run in air spaces that are not air-conditioned

must be insulated and provided with a vapor barrier.

Ducts exposed to the outside must be

weatherproofed. For quiet operation, we

recommend that the insulation on the supply duct

be placed inside, lining the duct.

Duct connection with a vertical air plenum

(4) Where ducts from the outside enter a building, the

duct openings in the building should be sealed with

weather stripping to prevent rain, duct, sand,etc.

from entering the building.

(5) Correctly sized filters must be fitted and there is no

provision within the unit, however the filters may be

installed in the return air.

4.Drain piping

(1) A 1 FPT condensate drain fitting is provided. The

drain pipe can be led out at the right or left side.

Under standard specifications, it is led out at the left

side and the right side is covered.

A 70mm

B 2C

Drain piping

C 2XE.S.P

(2) The drain pipe must be provided with a trap on the

outside of the unit and also installed at an incline for

proper drainage, as shown below.

The drain pipe

should extend

below this level.

Drain trap

Note:ESP=External Static Pressure

(3) To prevent condensate formation and leakage,

provide the drain pipe with insulation to safeguard

against sweating.

Drain trap for condensate

(4) Upon completion of the piping work, check that there

is no leakage and that the water drains off properly.

- 52 -

5.Electrical Wiring

Remove the panel on the right side (PR,PRH-5 10) or the rear side (PR,PRH-15,20) of the unit and

connect the units power supply wiring to the proper terminals in the control box, as shown below.

PR-5YC

PRH-5YA

PRH-5YA-L

PR-8YC

PRH-8YA

PRH-8YA-L

PR-10YC

PRH-10YA

PRH-10YA-L

PR-15YC

PRH-15YA

PRH-15YA-L

PR-20YC

PRH-20YA

PRH-20YA-L

MODEL

INDOOR FAN MOTOR OUTPUT <kW>

0.75

1.1

1.5

2.2

3.0

4.0

<mm

5.5

POWER SUPPLY

EARTH

WIRING

< A >

100

MAIN SWITCH

Std.

Control box

Terminal block

Control box

power supply

Wiring for PR,PRH-15,20(rear view)

Wiring for PR,PRH-5 10(right side view)

TN-NET SYSTEM (For European models only)

Note:

All electrical wiring must be comply with local electrical authority regulations.

6.Final Checks

After having installed the unit, check that:

(1) The unit is fixed securely.

(2) The unit is installed properly.

(3) The drain pipe is provided with a drain trap.

(4) The electrical wiring has been connected correctly and the terminal screws have been properly

tightened.

(5) The duct work has been performed correctly.

7.Trial Operation

(1) Before turning the unit on, measure the resistance between the terminals of the electrical parts and

ground with a 500V megger and check that the value is at least 1MΩ. If the measured value is below 1MΩ,

do not operate the unit.

(2) Check the operation of the high pressure switch by activating it. Operation should stop when the two leads

of the outdoor unit fan motor are removed from the contactor and cooling continues for 5~10min.

(3) Check that the indoor and outdoor fans are rotating in the proper direction.

(4) After having checked the above points, proceed with a trial operation of the unit.

- 53 -

INSTRUCTIONS FOR USE

1.CHECK POINTS FOR OPERATION

Check the following points before you operate your air conditioner.

(1) Check that there is nothing blocking the flow of air from the air outlet into the air inlet.

Indoor Unit

Outlet grille

Inlet grille

Ceiling

Obstacle blocking air inlet

Outdoor Unit

Obstacle blocking air inlet

(2) Make sure the air conditioner is properly grounded by checking the ground terminal .

Ground

- 54 -

2.CAUTION FOR USE

Keep the following points in mind to safeguard against failures and breakdowns.

(1) This air conditioner does not restart within 3min.

after shut down.

3 Minutes

(These models have a crankcase heater in the

Shutdown

Operation

compressor. If the air conditioner is shut down

for a short time, please do not turn the power

switch to OFF, but turn the operation switch to OFF.)

(2) If the air conditioner is shut down by a power failure,

set the operation switch to OFF. When the power is

restored, normal air conditioner operation can be

resumed.

(3) Do not stick rods or other objects through the air

outlet during operation since this may result in

equipment damage or personal injury.

3.MAINTENANCE

For superior performance and lasting durability, please do not forget to conduct

proper and regular maintenance.

3.1 Cleaning the Air Filter

Clean the air filter about once a week with a neutral cleanser and leave it to dry in a shady location. Clean

more regularly if the air filter gets very dirty.

If the filter gets blocked, air will not be sucked in properly, and the cooling effect will deteriorate. Failure to

clean the air filter may result in equipment breakdown or malfunctions.

3.2 Cleaning panels

Clean dirt off front panel as follows.

Fingermarks

Use a household neutral cleanser such as for

dishes or vegetables. Moisten a soft cloth with

Neutral

Cleanser

the cleanser, then wipe lightly. Next,wipe three

or four times with another soft cloth moisten

Grease

with water. Finally, wipe off all the remaining

cleanser with a soft cloth.

Moisten a soft cloth with the alcohol, then wipe

off lightly. Isopropyl alcohol is sold at stores as

reagents in small quantities.

Adhesive

Isopropyl

alcohol

Note:

Alcohol is highly combustible. Take extreme

Paste

care when handling. Also, do not use paint or

adhesive thinner.

3.3 Cleaning the Outdoor Unit Heat Exchanger

If you use your air conditioner for prolonged periods,

the outdoor heat exchanger will become dirty, impairing

its function and reducing air conditioners performance.

Consult your equipment supplier or air conditioning

contractor on how to clean the heat exchanger.

Heat exchanger

- 55 -

4. PREPARING FOR OPERATION AFTER PROLONGED SHUTDOWN

When the usage season starts, proceed with the following before starting operation:

(1)Clean the air filter.

(2)Do not use the unit immediately. Turn the main power switch on for a period of 3 hours before restarting

cooling / heating operation. This allows the compressors to come up to the correct operation temperatures.

Failure to do this, could cause compressor failure.

5.PREPARING FOR PROLONGED SHUTDOWN

After the usage season is over, prepare the air conditioner for later use by:

(1)Setting the power switch to OFF.

(2)Consulting your Air conditioning specialist for detailed information.

6.TROUBLESHOOTING

If any trouble occurs, turn the operation (start or run) switch off immediately.

Symptom

Possible cause

Power failure.

Remedy

Wait for power supply

recovery.

Both fan and compressor

do not run.

Blown fuse of power

source switch.

Contact your

Air conditioning specialist

Excessively low power

source voltage.

Ask your electric power

company.

For temperature control,

• decrease the set

temperature at cooling.

• increase the set

temperature at heating.

The set temperature of

thermostat is

• excessively high for

cooling.

• excessively low for

heating.

Fan runs but compressor

does not run.

Can not be operated as

it is out of temperature

control range.

The room temperature is

• excessively low for

cooling.

• excessively high for

heating.

Air outlet and inlet

are blocked.

Remove blocking matter.

Clean it.

Fan runs but stops

immediately.

The filter installed in

the field is clogged

with dust.

Windows and doors are

being opened.

Close them.

Air outlet and inlet

are blocked.

Remove blocking matter.

Runs but without

cooling/heating.

For temperature control,

• decrease the set

temperature at cooling.

• increase the set

temperature at heating.

The set temperature of

thermostat is

• excessively high for

cooling.

• excessively low for

heating.

Insufficient

refrigerant charge.

Contact your

Air conditioning specialist

Note:

If the unit does not operate normally after troubleshooting, please contact your local equipment supplier or

air conditioning contractor.

- 56 -

SPECIFICATION GUIDELINES

Please supply and install a one piece, air to air reverse cycle air conditioning system.

The system shall be completely assembled, tested and have a complete refrigeration charge ready for

installation and operation from the factory.

The system shall operate at outdoor ambient temperatures as high as 46˚C.

The system shall have a total cooling capacity of

L/s at ˚C db and ˚C wb entering indoor coil temperature with a

entering

the outdoor coil.

kW or greater with an indoor air quantity of

˚C temperature

The system shall have a sensible heat capacity of

˚C.

kW or greater with a room db temperature of

The total heating capacity (without electric element heaters) shall be

kW or greater at

˚Cdb,

˚C wb outdoor air conditions, with

˚C of indoor air entering indoor coil at ˚C db. One

kW electric heater element (accessory) shall be furnished.

The compressors shall be a welded high efficiency hermetic type with internal vibration isolation and be

equipped with a crankcase heater.

Compressors shall be protected by a factory installed anti-cycle device and provide a 3 minute delay before

compressor can restart.

Coils shall be of non-ferrous construction with mechanically bonded aluminium plate fins. Outdoor coils

shall be made, of 9.52mm OD, 0.35mm thick seamless copper tubes mechanically bonded to 0.12mm thick

aluminium plate fins.

Coils with multiple stage refrigeration systems shall consist of independent circuits. Face area of the coil

shall not be less than

M . The coil shall be factory pressure and leak tested at 3,233 kPa pressure.

The indoor coil face area shall be not less than

M .

Multi-wing propeller type fans shall be fitted at the condenser and shall be dynamically balanced, to ensure

smooth airflow and shall discharge vertically and be direct driven by a weatherproof three phase squirrel

cage

kW induction motor.

The system shall be factory wired and all electrical wiring must comply with the Local wiring code. (Controls

and control wiring shall be supplied by the contractor). Compressors and fan motors shall have both internal

and current sensitive overload devices.

An automatic defrost control shall be included to accomplish defrosting (only if required) every

minutes for a period of

minutes.

A low voltage transformer (24V) shall be factory installed in the unit for an external control circuit.

High pressure switch (pre-set) shall be factory installed.

The enclosure shall be a single, enclosed, weatherproof casing constructed of phosphatised, zinc coated

steel with acrylic resin primer and ivory white baked enamel finish.

The unit shall be provided with hoisting plates for rigging and hoisting the unit. The hoisting plates shall be

located in the base of the unit.

The unit shall have a 25mm OD male drain connection provided. The drain pipe shall be accessible from

either the left or right side of the unit. A blanking cap shall be provided to cap the drain outlet not being

used.

The duct (field supply) shall be fully insulated with fiber glass insulation to prevent sweating and to minimize

sound.

Each unit shall have a drain pan of 1mm thick steel coated with epoxy resin enamel.

The enclosure shall have openings provided for power connections. Access for both service and installation

shall be provided to compressors, control wiring, filters, electric heaters (when fitted) and fans.

Side panels and top panels shall be removable for easy service access.

The unit maximum dimensions shall be : height:

mm, width:

mm and depth:

mm.

Due to continuous product development, these guidelines are subject to change.

- 57 -

MEMO

- 58 -

DATA BOOK PR,PRH

MITSUBISHI ELECTRIC CORPORATION

HEAD OFFICE DENKI BLDG., MARUNOUCHI,TOKYO 100,TELEX J24532 CABLE MELCO TOKYO

New publication effective Jan. 1999.

Specifications subject to change without notice.

Issuued in January. 1999 MEE98K036

Printed in Japan.

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