Mitsubishi PKH-2FKA3, PKH-2.5FKA2, PKH-2.5FKA3, PKH-3FKA2, PKH-3FKA3 Service Manual

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Page 1

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

FILTER

CHECK MODE

CHECK

TEST RUN

TECHNICAL & SERVICE MANUAL

• PKH-2.5FKA3, PKH-3FKA3and

Series PKH

Indoor unit [ Model names ] [ Service Ref. ]

PKH-2FKA PKH-2FKA PKH-2.5FKA PKH-2.5FKA

Wall Mounted

• Please void OC132 .

• This manual does not cover

2001

No. OC132

REVISED EDITION-A

PKH-4FKSA REVISED EDITION-A.

outdoor units. When servicing them, please refer to the service manual No.OC128 REVISED EDITION-C and this manual in a set.

are added in

PKH-2.5FKA

PKH-3FKA PKH-3FKA

PKH-3FKA

PKH-4FKSA PKH-4FKSA

PKH-4FKSA

Indoor unit

REMOTE CONTROLLER

3 2 3

2 3

[Service Ref.] PUH-2VKA PUH-2NKA1, PUH-2NKA2, PUH-2.5VKA2, PUH-2.5VKA3, PUH-2.5NKA1, PUH-2.5NKA2, PUH-3VKA2, PUH-3VKA3, PUH-3YKA2, PUH-3YKA3, PUH-3YKA4, PUH-3NKA1, PUH-3NKA2, PUH-4YKSA3, PUH-4YKSA4, PUH-4TKSA1

2, PUH-2VKA3,

CONTENTS

1. TECHNICAL CHANGES·······················2

2. PART NAMES AND FUNCTIONS········3

3. SPECIFICATIONS·································5

4. DATA···················································13

5. OUTLINES AND DIMENSIONS··········20

6. WIRING DIAGRAM ·····························24

REFRIGERANT SYSTEM DIAGRAM

8. OPERATION FLOW-CHART ··············28

9. MICROPROCESSOR CONTROL·······32

10. TROUBLESHOOTING························54

11. SYSTEM CONTROL···························63

12. DISASSEMBLY PROCEDURE···········68

13. PARTS LIST········································71

14. OPTIONAL PARTS·····························80

······26

Page 2

● PKH-2.5FKA2 ➔ PKH-2.5FKA3

● PKH-3FKA2 ➔ PKH-3FKA3

● PKH-4FKSA2 ➔ PKH-4FKSA3

•NOSE shape has changed.

•UNDER PLATE shape has changed.

•TOP PLATE shape has changed.

•DRAIN PAN shape has changed.

•BOX ASSEMBLY shape has changed.

•The specifications of these power supply voltages have been added: 50Hz 220-230-240V;

TECHNICAL CHANGES

50Hz 380-400-415V.

Page 3

Air intake

Room air is suctioned in here.

(Removes dust and dirt from the intake air.)

Filter Air intake grille

Air outletAir outlet

Auto vane

Air flow can be changed to horizontally by moving the Guide vane to the left or right.

Guide vane

PART NAMES AND FUNCTIONS

● Indoor Unit

● Remote controller

● Once the operation of the unit is set, subsequent operations can only be performed by pressing the ON/OFF button repeat-

edly.

● Operation buttons

w button

This switches between continuous

operation and the timer operation

button

Press this button to switch the cooler electronic dry (dehumidify), automatic and heater modes.

i TEMP button

This sets the room temperature. The temperature setting can be performed in 1°C units.

Setting range :

Cooler 19°C to 30°C Heater 17°C to 28°C

q button

This sets or switches the current time, start time and stop time.

CHECK

button

The sets the ventilation fan speed.

FILTER CHECK MODE TEST RUN

ON/OFF button

This switches between the operation

and stop modes each time it is pressed. The lamp on this button lights during operation.

j button

This adjusts the vertical angle of the

ventilation.

FILTER button

This resets the filter service indication display

The model name of the remote controller is indicated. PAR-JH241KA(2.5 ~ 4) PAR-JH150KA(2)

button

This switches the horizontal fan motion ON and OFF.

(This button does not operate in this model.)

CHECK-TEST RUN button

Only press this button to perform an inspection check or test operation. Do not use it for normal operation

Page 4

FILTER

CHECK MODE

CHECK

TEST RUN

● Display

CENTRALLY CONTROLLED display

This indicates when the unit is con-

trolled by optional features such as central control type remote controller.

w display

This indicates when the continuous operation and time operation modes are set. It also display the time for the timer operation at the same time as when it is set.

OPERATION MODE display

This indicates the operation mode.

STANDBY display

This indicates when the standby

mode is set from the time the sleep operation starts until the heating air is discharged.

r display

The current time , start time and stop

time can be displayed in ten second intervals by pressing the time switch button. The start time or stop time is always displayed during the timer operation.

display

The selected fan speed is displayed.

display

This displays the air direction.

In this display example on the bottom left, a condition where all display lamps light is shown for explanation purposes although this differs from actual operation.

—88°C display

The temperature of the suction air is displayed during operation. The display range is 8° to 39°C. The display flashes 8°C when the actual temperature is less than 8° and flashes 39°C when the actual temperature is greater than 39°C.

Operation lamp

This lamp lights during operation, goes off when the unit stops and flashes when a malfunction occurs.

DEFROST display

This indicates when the defrost oper-

ation is performed.

FILTER

This lamp lights when the filter need to be cleaned.

display

CHECK MODE

TEST RUN

This display lights in the check mode or when a test operation is performed.

display

CHECK display

This indicates when a malfunction

has occurred in the unit which should be checked.

—88°C display

This displays the selected setting

temperature.

Caution

● Only the display lights when the unit is stopped and power supplied to the unit.

● When power is turned ON for the first time the (CENTRAL CTRL) display appears to go off momentarily but this is not a

malfunction.

● When the central control remote control unit, which is sold separately, is used the ON-OFF button, button and i TEMP button do not operate.

● “NOT AVAILABLE” is displayed when the button is pressed. This indicates that this room unit is not equipped with.

Display

This lamp lights when electricity is supplied to the unit.

Page 5

SPECIFICATIONS3

Item Function

Capacity Total input

Service Ref.

Power supply(phase,cycle,voltage)

External finish Heat exchanger

Booster heater Operation control & Thermostat Noise level(Low-High) Cond. drain connection. O.D.

Dimensions

Weight

Service Ref.

Power supply (phase, cycle, voltage)

External finish Refrigerant control Compressor

Heat exchanger

Defrost method Noise level

Dimensions

Weight Refrigerant

Pipe size O.D.

Connection method

Between the indoor & outdoor unit

Input Running current Starting current

Fan(drive) ✕ No.Fan Fan motor output Airflow(Low-High) External static pressure

Input Running current Staring current

Model Motor output Starter type Protection devices

Fan(drive)✕No. Fan motor output Airflow

Charge

Service Ref.

D H

Liquid Gas Indoor side Outdoor side Height difference Piping length

INDOOR UNITOUTDOOR UNIT

REFRIGERANT PIPING

Btu/h

A A

/X<CFM>

Pa(mmAq)

A<in.> A<in.> A<in.> A<in.>

kg<lbs>

A<in.> A<in.> A<in.>

A<in.> A<in.>

kg<lbs>

A A

/X<CFM>



PKH-2FKA3

Cooling Heating

5,500 6,250

18,800 21,300

2.27

0.07

0.32

0.40

PKH-2FKA

Single Phase, 50Hz, 220-230-240V

Munsell 3.4Y 7.7/0.8(White)

Plate fin coil

Line flow(direct) ✕ 1

0.030

10-13<353-459>

0(direct blow)

—

Remote controller & built-in

36-43

20<13/16>

1,250<49-3/16>

200<7-7/8>

300<11-13/16>

18<40>

PUH-2VKA

2 PUH-2VKA3

Single Phase, 50Hz, 220-230-240V

2.222.20

9.959.86

Munsell 5Y 7/1

Capillary tube

Hermetic

NH38VMD

1.7

Line start

Internal thermostat, HP switch

Plate fin coil

Propeller (direct) ✕ 1

0.065

45<1.590>

Reverse cycle

870(34-1/4)

295+24<11-5/8 add 1>

650<25-5/8>

64<141>

R22

2.2<4.9>

9.52<3/8>

15.88<5/8> Flared Flared

Max. 40m Max. 40m

2.29

0.07

0.32

0.40

Fan

50Hz

Note 1. Rating Conditions (JIS B 8616)

Cooling : Indoor : D.B. 27°C (80°F), W.B. 19°C (66°F)

Outdoor : D.B. 35°C (95°F), W.B. 24°C (75°F)

Heating : Indoor : D.B. 20°C (68°F)

Outdoor : D.B. 7°C (45°F), W.B. 6°C (43°F)

Note 2. Above data based on indicated voltage

Indoor Unit Single phase 240V 50Hz Outdoor Unit Single phase 240V 50Hz

Page 6

Item Function

Capacity Total input

Service Ref.

Power supply(phase,cycle,voltage)

External finish Heat exchanger

Booster heater Operation control & Thermostat Noise level(Low-High) Cond. drain connector. O.D.

Dimensions

Weight

Service Ref.

Power supply (phase, cycle, voltage)

External finish Refrigerant control Compressor

Heat exchanger

Defrost method Noise level

Dimensions

Weight Refrigerant

Pipe size O.D.

Connection method

Between the indoor & outdoor unit

Input Running current Starting current

Fan(drive) ✕ No.Fan Fan motor output Airflow(Low-High) External static pressure

Input Running current Staring current

Model Motor output Starter type Protection devices

Fan(drive)✕No. Fan motor output Airflow

Charge

Service Ref.

D H

Liquid Gas Indoor side Outdoor side Height difference Piping length

INDOOR UNITOUTDOOR UNIT

REFRIGERANT PIPING

Btu/h

A A

/X<CFM>

Pa(mmAq)

A<in.> A<in.> A<in.> A<in.>

kg<lbs>

A<in.> A<in.> A<in.>

A<in.> A<in.>

kg<lbs>

A A

/X<CFM>

PKH-2.5FKA2 PKH-2.5FKA3

Cooling Heating

6,500 7,200

22,200 24,600

2.56

0.095

0.44

0.80

PKH-2.5FKA

2 PKH-2.5FKA3

Single Phase, 50Hz, 220-230-240V

Munsell 3.4Y 7.7/0.8(White)

Plate fin coil

Line flow(direct) ✕ 2

0.040

15-20<530-706>

0(direct blow)

—

Remote controller & built-in

39-45

20<13/16>

1,400<55-1/8>

235<9-1/4>

340<13-3/8>

26<57>

PUH-2.5VKA

2 PUH-2.5VKA3

Single Phase, 50Hz, 220-230-240V

2.232.46

9.7810.68

Munsell 5y 7/1

Capillary tube

Hermetic

NH41VMD

2.0

Line start

Internal thermostat, HP switch

Plate fin coil

Propeller (direct) ✕ 1

0.085

50<1,764>

Reverse cycle

870(34-1/4)

295+24<11-5/8 add 1>

850<33-7/16>

64<150>

R22

2.8<6.2>

9.52<3/8>

15.88<5/8> Flared Flared

Max. 50m Max. 50m

2.33

0.095

0.44

0.80

Fan

50Hz

Note 1. Rating Conditions (JIS B 8616)

Cooling : Indoor : D.B. 27°C (80°F), W.B. 19°C (66°F)

Outdoor : D.B. 35°C (95°F), W.B. 24°C (75°F)

Heating : Indoor : D.B. 20°C (68°F)

Outdoor : D.B. 7°C (45°F), W.B. 6°C (43°F)

Note 2. Above data based on indicated voltage

Indoor Unit Single phase 240V 50Hz Outdoor Unit Single phase 240V 50Hz

Page 7

Item Function

Capacity Total input

Service Ref.

Power supply(phase,cycle,voltage)

External finish Heat exchanger

Booster heater Operation control & Thermostat Noise level(Low-High) Cond. drain conn. O.D.

Dimensions

Weight

Service Ref.

Power supply (phase, cycle, voltage)

External finish Refrigerant control Compressor

Heat exchanger

Defrost method Noise level

Dimensions

Weight Refrigerant

Pipe size O.D.

Connection method

Between the indoor & outdoor unit

Input Running current Starting current

Fan(drive) ✕ No. Fan motor output Airflow(Low-High) External static pressure

Input Running current Staring current

Model Motor output Starter type Protection devices

Fan(drive)✕No. Fan motor output Airflow

Charge

Service Ref.

D H

Liquid Gas Indoor side Outdoor side Height difference Piping length

INDOOR UNITOUTDOOR UNIT

REFRIGERANT PIPING

Btu/h

A A

/X<CFM>

Pa(mmAq)

A<in.> A<in.> A<in.> A<in.>

kg<lbs>

A<in.> A<in.> A<in.>

A<in.> A<in.>

kg<lbs>

A A

/X<CFM>

PKH-3FKA2 PKH-3FKA3

Cooling Heating

7,900 9,100

27,000 31,000

3.25

0.095

0.44

0.80

PKH-3FKA

2 PKH-3FKA3

Single Phase, 50Hz, 220-230-240V

Munsell 3.4Y 7.7/0.8(White)

Plate fin coil

Line flow(direct) ✕ 2

0.040

15-20<530-706>

0(direct blow)

—

Remote controller & built-in

39-45

20<13/16>

1,400<55-1/8>

235<9-1/4>

340<13-3/8>

26<57>

PUH-3VKA2 PUH-3VKA3 / PUH-3YKA2 PUH-3YKA3 PUH-3YKA4

Single Phase, 50Hz, 220-230-240V/3Phase, 50Hz, 380-400-415V(4wires)

2.94/2.943.15/3.15

12.89/4.8113.82/5.16

58/37

Munsell 5Y 7/1

Capillary tube

Hermetic

2.2/2.4

Line start

Internal thermostat, HP switch/Thermal relay, thermal switch

Plate fin coil

Propeller (direct) ✕ 1

0.085

50<1,764>

Reverse cycle

870(34-1/4)

295+24<11-5/8 add 1>

850<33-7/16>

75<165>

R22

3.2<7.1>

9.52<3/8>

15.88<5/8> Flared Flared

Max. 50m Max. 50m

3.04

0.095

0.44

0.80

Fan

50Hz

Note 1. Rating Conditions (JIS B 8616)

Cooling : Indoor : D.B. 27°C (80°F), W.B. 19°C (66°F)

Outdoor : D.B. 35°C (95°F), W.B. 24°C (75°F)

Heating : Indoor : D.B. 20°C (68°F)

Outdoor : D.B. 7°C (45°F), W.B. 6°C (43°F)

Note 2. Above data based on indicated voltage

Indoor Unit Single phase 240V 50Hz Outdoor Unit Single phase 240V 50Hz

3 phase 415V 50Hz

PUH-3VKA2, PUH-3VKA3...... NH52VDA

PUH-3YKA2, .......................... NH52YDA

PUH-3YKA3, PUH-3YKA4.... NH52YDE

Page 8

Item Function

Capacity Total input

Service Ref.

Power supply(phase,cycle,voltage)

External finish Heat exchanger

Booster heater Operation control & Thermostat Noise level(Low-High) Cond. drain connector. O.D.

Dimensions

Weight

Service Ref.

Power supply (phase, cycle, voltage)

External finish Refrigerant control Compressor

Heat exchanger

Defrost method Noise level

Dimensions

Weight Refrigerant

Pipe size O.D.

Connection method

Between the indoor & outdoor unit

Input Running current Starting current

Fan(drive) ✕ No. Fan motor output Airflow(Low-High) External static pressure

Input Running current Staring current

Model Motor output Starter type Protection devices

Fan(drive)✕No. Fan motor output Airflow

Charge

Service Ref.

D H

Liquid

Gas

Indoor side

Outdoor side Height difference Piping length

INDOOR UNITOUTDOOR UNIT

REFRIGERANT PIPING

Btu/h

A A

/X<CFM>

Pa(mmAq)

A<in.> A<in.> A<in.> A<in.>

kg<lbs>

A<in.> A<in.> A<in.>

A<in.> A<in.>

kg<lbs>

A A

/X<CFM>

PKH-4FKSA2 PKH-4FKSA3

Cooling Heating

9,500 10,700

32,400 36,500

3.31

0.114

0.53

0.90

PKH-4FKSA

2 PKH-4FKSA3

Single Phase, 50Hz, 220-230-240V

Munsell 3.4Y 7.7/0.8(White)

Plate fin coil

Line flow(direct) ✕ 2

0.070

22-28<777-989>

0(direct blow)

—

Remote controller & built-in

41-46

20<13/16>

1,680<66-1/8>

235<9-1/4>

340<13-3/8>

30<66>

PUH-4YKSA

3 PUH-4YKSA4

3, 50Hz, 380-400-415V(4wires)

3.193.20

5.225.24

Munsell 5Y 7/1

Capillary tube

Hermetic

PUH-4YKSA

3:NH56YDA PUH-4YKSA4:NH56YDE

2.7

Line start

Thermal relay, thermal switch, HP switch, anti-phase protector

Plate fin coil

Propeller (direct) ✕ 2

0.065+0.065 95<3,350>

Reverse cycle

870(34-1/4)

295+24<11-5/8 add 1>

1,258<49-1/2>

94<207>

R22

4.2<9.2>

9.52<3/8>

19.05<3/4> Flared Flared

Max. 50m Max. 50m

3.30

0.114

0.53

0.90

Fan

50Hz

Note 1. Rating Conditions (JIS B 8616)

Cooling : Indoor : D.B. 27°C (80°F), W.B. 19°C (66°F)

Outdoor : D.B. 35°C (95°F), W.B. 24°C (75°F)

Heating : Indoor : D.B. 20°C (68°F)

Outdoor : D.B. 7°C (45°F), W.B. 6°C (43°F)

Note 2. Above data based on indicated voltage

Indoor Unit Single phase 240V 50Hz Outdoor Unit 3 phase 415V 50Hz

Page 9

Item

Function Capacity Total input

Service Ref.

Power supply(Phase, cycle, voltage)

Input Running current

Starting current External finish Heat exchanger Fan

Booster heater

INDOOR UNITOUTDOOR UNIT

Operation control & Thermostat Noise level(Low-High) Cond. drain connection O.D.

Dimensions

Weight Service Ref. Power supply(Phase, cycle, voltage)

External finish Refrigerant control Compressor

Heat exchanger Fan

Defrost method Noise level

Dimensions

Weight Refrigerant

Pipe size O.D.

Connection method

PIPING

REFRIGERANT

Between the indoor & outdoor units

Fan(drive)oNo.

Fan motor output

Airflow(Low-High)

External static pressure

Input

Running current

Starting current

Model

Motor output

Starter type

Protection devices

Fan(drive)oNo.

Fan motor output

Airflow

Charge

Service Ref.

K/min (CFM)

mmAq, Pa

W D H

K/min (CFM)

W D H

Liquid

Gas

Indoor side Outdoor side Height difference Piping length

Btu/h

A A

dB mm(in.) mm(in.) mm(in.) mm(in.)

kg(lbs)

A A

dB mm(in.) mm(in.) mm(in.)

kg(lbs)

kg(lbs) mm(in.) mm(in.)

Cooling

5,800/5,100

19,800/17,400

2.49/2.91

0.08

0.37

0.50

2.41/2.83

11.07/12.99 54

PKH-2FKA

W1/ W2 W2

PKH-2FKA

Single. 60Hz. 220V

Munsell 3.4Y 7.7/0.8(White)

Plate fin coil

Line flow (direct) o 1

10-13<353-459>

0<direct blow>

Remote controller & built-in

20<13/16>

1,250<49-3/16>

200<7-7/8>

300<11-13/16>

PUH-2NKA

Single, 60Hz, 220V

Munsell 5Y 7/1

Capillary tube

Hermetic

NHJ33NBD

Line start

Inner thermostat

Plate fin coil

Propeller (direct) o 1

45<1,590>

Reverse cycle

870<34-1/4>

295+24 <11-5/8 add 1>

650 <25-5/8>

66.5<146>

2.2<4.8>

9.52 <3/8>

15.88 <5/8>

Max. 40m Max. 40m

Heating

6,600

22,500

2.53

0.08

0.37

0.50

0.030

—

36-43

18<40>

1 PUH-2NKA2

2.45

11.2 54

1.5

0.065

R22

Flared Flared

60Hz

Notes : w1 Rating conditions

(INDOOR) Cooling : D.B. 27:, W.B. 19: (OUTDOOR) Cooling : D.B. 35:

w2 Rating conditions

(INDOOR) Cooling : D.B. 29:, W.B. 19: Heating : D.B. 21: (OUTDOOR) Cooling : D.B. 46: Heating : D.B. 7:, W.B. 6:

Page 10

kg(lbs)

PKH-2.5FKA

2 PKH-2.5FKA3

Service Ref.

Power supply(Phase, cycle, voltage)

External finish Heat exchanger Fan

Booster heater Operation control & Thermostat Noise level(Low-High) Cond. drain connection O.D.

Dimensions

Weight Service Ref. Power supply(Phase, cycle, voltage)

External finish Refrigerant control Compressor

Heat exchanger Fan

Defrost method Noise level

Dimensions

Weight Refrigerant

Pipe size O.D.

Connection method

Between the indoor & outdoor units

Indoor side Outdoor side Height difference Piping length

Input Running current Starting current

Fan(drive)oNo. Fan motor output Airflow(Low-High) External static pressure

Input Running current Starting current

Model Motor output Starter type Protection devices

Fan(drive)oNo. Fan motor output Airflow

Charge

dB mm(in.) mm(in.) mm(in.) mm(in.)

kg(lbs)

D H

Function

Total input

Capacity

dB mm(in.) mm(in.) mm(in.)

kg(lbs)

D H

INDOOR UNITOUTDOOR UNIT

REFRIGERANT

PIPING

Item

Service Ref.

Btu/h

A A

K/min (CFM)

mmAq, Pa

mm(in.) mm(in.)

Liquid

Gas

PKH-2.5FKA

2 PKH-2.5FKA3

Single. 60Hz. 220V

Munsell 3.4Y 7.7/0.8(White)

Plate fin coil

Line flow (direct) o 2

0.040

15-20<530-706>

0<direct blow>

—

Remote controller & built-in

39-45

20<13/16>

1,400<55-1/8>

235<9-1/4>

340<13-3/8>

26<57>

PUH-2.5NKA

1 PUH-2.5NKA2

Single, 60Hz, 220V

Munsell 5Y 7/1

Capillary tube

Hermetic

NHJ38NBD

1.7

Line start

Inner thermostat

Plate fin coil

Propeller (direct) o 1

0.085

50<1,764>

Reverse cycle

870<34-1/4>

295+24 <11-5/8 add 1>

850<33-7/16>

74<163>

R22

2.8<6.2>

9.52 <3/8>

15.88 <5/8> Flared Flared

Max. 50m Max. 50m

2.91/3.43

13.50/15.75 58

2.80

13.0 58

Cooling

7,000/5,900

23,900/20,100

3.01/3.53

0.095

0.44

0.70

Heating

8,000

27,300

2.90

0.095

0.44

0.70

w1/ w2 w2

60Hz

Notes : w1 Rating conditions

(INDOOR) Cooling : D.B. 27:, W.B. 19: (OUTDOOR) Cooling : D.B. 35:

w2 Rating conditions

(INDOOR) Cooling : D.B. 29:, W.B. 19: Heating : D.B. 21: (OUTDOOR) Cooling : D.B. 46: Heating : D.B. 7:, W.B. 6:

Page 11

60Hz

Item

Function Capacity Total input

Service Ref.

Power supply(Phase, cycle, voltage)

Input Running current

Starting current External finish Heat exchanger Fan

Booster heater

INDOOR UNITOUTDOOR UNIT

Operation control & Thermostat Noise level(Low-High) Cond. drain connection O.D.

Dimensions

Weight Service Ref. Power supply(Phase, cycle, voltage)

External finish Refrigerant control Compressor

Heat exchanger Fan

Defrost method Noise level

Dimensions

Weight Refrigerant

Pipe size O.D.

Connection method

PIPING

REFRIGERANT

Between the indoor & outdoor units

Fan(drive)oNo.

Fan motor output

Airflow(Low-High)

External static pressure

Input

Running current

Starting current

Model

Motor output

Starter type

Protection devices

Fan(drive)oNo.

Fan motor output

Airflow

Charge

Service Ref.

K/min (CFM)

mmAq, Pa

D H

K/min (CFM)

D H

Liquid

Gas

Indoor side Outdoor side Height difference Piping length

Btu/h

A A

dB mm(in.) mm(in.) mm(in.) mm(in.)

kg(lbs)

A A

dB mm(in.) mm(in.) mm(in.)

kg(lbs)

kg(lbs) mm(in.) mm(in.)

Cooling

7,800/6,900

26,600/23,500

3.62/4.23

0.095

0.44

0.70

3.52/4.13

16.49/18.77 80

PKH-3FKA

Munsell 3.4Y 7.7/0.8(White)

Remote controller & built-in

PUH-3NKA

295+24 <11-5/8 add 1>

2 PKH-3FKA3

w1/ w2 w2

2 PKH-3FKA3

Single. 60Hz. 220V

Plate fin coil

Line flow (direct) O 2

0.040

15-20<530-706>

0<direct blow>

—

39-45

20<13/16>

1,400<55-1/8>

235<9-1/4>

340<13-3/8>

26<57>

1 PUH-3NKA2

Single, 60Hz, 220V

Munsell 5Y 7/1

Capillary tube

Hermetic

NHJ47NAD

2.2

Line start

Inner thermostat

Plate fin coil

Propeller (direct) o 1

0.085

50<1,764>

Reverse cycle

870<34-1/4>

850<33-7/16>

78<172>

R22

3.2<7.1>

9.52 <3/8>

15.88 <5/8> Flared Flared

Max. 50m Max. 50m

Heating

9,500

32,400

3.43

0.095

0.44

0.70

3.33

15.6 80

Notes : w1 Rating conditions

(INDOOR) Cooling : D.B. 27:, W.B. 19: (OUTDOOR) Cooling : D.B. 35:

w2 Rating conditions

(INDOOR) Cooling : D.B. 29:, W.B. 19: Heating : D.B. 21: (OUTDOOR) Cooling : D.B. 46: Heating : D.B. 7:, W.B. 6:

Page 12

kg(lbs)

PKH-4FKSA

2 PKH-4FKSA3

Service Ref.

Power suppl(Phase, cycle, voltage)

External finish Heat exchanger Fan

Booster heater Operation control & Thermostat Noise level(Low-High) Cond. drain connection O.D.

Dimensions

Weight

Service Ref.

Power supply(Phase, cycle, voltage)

External finish Refrigerant control Compressor

Heat exchanger Fan

Defrost method Noise level

Dimensions

Weight Refrigerant

Pipe size O.D.

Connection method

Between the indoor & outdoor units

Indoor side Outdoor side Height difference Piping length

Input Running current Starting current

Fan(drive)oNo. Fan motor output Airflow(Low-High) External static pressure

Input Running current Starting current

Model Motor output Starter type Protection devices

Fan(drive)oNo. Fan motor output Airflow

Charge

dB mm(in.) mm(in.) mm(in.) mm(in.)

kg(lbs)

D H

Function

Total input

Capacity

dB mm(in.) mm(in.) mm(in.)

kg(lbs)

D H

INDOOR UNITOUTDOOR UNIT

REFRIGERANT

PIPING

Item

Service Ref.

Btu/h

A A

K/min (CFM)

mmAq, Pa

mm(in.) mm(in.)

Liquid

Gas

PKH-4FKSA

2 PKH-4FKSA3

Single. 60Hz. 220V

Munsell 3.4Y 7.7/0.8(White)

Plate fin coil

Line flow (direct) o 2

0.070

22--28<777-989>

0<direct blow>

—

Remote controller & built-in

41-46

20<13/16>

1,680<66-1/8>

235<9-1/4>

340<13-3/8>

30<66>

PUH-4TKSA

3.60Hz, 220V

Munsell 5Y 7/1

Capillary tube

Hermetic

NHJ56TKA

2.7

Line start

Thermal switch, Reversed phase protector, Thermal relay

Plate fin coil

Propeller (direct) o 2

0.065+0.065 95<3,350>

Reverse cycle

870<34-1/4>

295+24 <11-5/8 add 1>

1,258<49-1/2>

94<207>

R22

4.7<10.4>

9.52<3/8>

19.05<3/4> Flared Flared

Max. 50m Max. 50m

4.14/5.01

11.81/14.14 69

3.96

11.3 69

Cooling

10,400/9,400

35,500/32,100

4.25/5.12

0.114

0.53

0.80

Heating

12,200 41,600

4.07

0.114

0.53

0.80

w1/ w2 w2

60Hz

Notes : w1 Rating conditions

(INDOOR) Cooling : D.B. 27:, W.B. 19: (OUTDOOR) Cooling : D.B. 35:

w2 Rating conditions

(INDOOR) Cooling : D.B. 29:, W.B. 19: Heating : D.B. 21: (OUTDOOR) Cooling : D.B. 46: Heating : D.B. 7:, W.B. 6:

Page 13

Service Ref.

PKH-2FKA

PKH-2.5FKA

PKH-3FKA

PKH-4FKSA

16 18 20 22 16 18 20 22 16 18 20 22 16 18 20 22

5,549 5,908 6,271 6,638 6,557 6,982 7,411 7,845 7,970 8,486 9,007 9,534

9,584 10,204 10,832 11,465

P.C.

1.82

1.86

1.89

1.93

2.05

2.09

2.13

2.17

2.60

2.66

2.71

2.76

2.65

2.71

2.76

2.81

5,397 5,752 6,124

6,511 6,378 6,798 7,237 7,694 7,752 8,262 8,796 9,352 9,322 9,936

10,577

11,246

P.C.

1.90

1.94

1.97

2.01

2.14

2.18

2.23

2.27

2.72

2.77

2.83

2.88

2.77

2.82

2.88

2.94

5,198 5,543 5,905 6,285 6,144 6,551 6,979 7,428 7,467 7,961 8,482 9,028 8,979

9,574 10,200 10,856

P.C.

2.04

2.09

2.13

2.18

2.30

2.36

2.41

2.46

2.92

2.99

3.06

3.12

2.98

3.05

3.11

3.18

4,988 5,323 5,677 6,050 5,895 6,291 6,709 7,150 7,164 7,646 8,154 8,690 8,615 9,194 9,806

10,450

P.C.

2.19

2.24

2.30

2.35

2.47

2.53

2.59

2.65

3.13

3.21

3.29

3.37

3.19

3.27

3.35

3.43

4,765 5,093 5,440 5,806 5,646 6,027 6,430 6,855 6,862 7,325 7,815 8,332 8,252 8,808 9,398

10,020

P.C.

2.34

2.40

2.46

2.53

2.64

2.70

2.77

2.85

3.35

3.43

3.52

3.62

3.41

3.49

3.59

3.69

4,530 4,852 5,193 5,552 5,373 5,747 6,143 6,561 6,530 6,985 7,467 7,974 7,852 8,400 8,979 9,589

P.C.

2.49

2.55

2.63

2.71

2.80

2.87

2.96

3.06

3.56

3.65

3.76

3.88

3.62

3.72

3.83

3.95

Outdoor intake air D.B.:

Refrigerant piping length (one way)

PKH-2FKA

PKH-2.5FKA

PKH-3FKA

PKH-4FKSA

Service Ref.

1.00

10m

0.992

0.989

0.981

0.989

15m

0.983

0.980

0.968

0.980

20m

0.978

0.970

0.952

0.970

25m

0.966

0.960

0.940

0.960

30m

0.959

0.950

0.925

0.950

35m

0.950

0.940

0.913

0.940

40m

0.945

0.930

0.900

0.930

45m

—

0.920

0.886

0.920

50m

—

0.910

0.874

0.910

Indoor Intake

air

W.B.:

Service Ref.

PKH-2FKA

PKH-2.5FKA

PKH-3FKA

PKH-4FKSA

16 18 20 22 16 18 20 22 16 18 20 22 16 18 20 22

CA 5,851 6,230 6,613 7,000 7,062 7,519 7,981 8,448 7,869 8,378 8,893 9,414

10,492 11,171 11,858 12,552

P.C.

2.00

2.04

2.07

2.11

2.41

2.46

2.51

2.55

2.90

2.96

3.02

3.07

3.41

3.47

3.54

3.61

CA 5,691 6,066 6,458 6,866 6,869 7,321 7,794 8,286 7,654 8,158 8,684 9,233 10,205 10,877 11,579 12,311

P.C.

2.08

2.12

2.17

2.21

2.52

2.57

2.62

2.67

3.03

3.09

3.15

3.21

3.55

3.62

3.70

3.77

CA 5,482 5,845 6,227 6,628 6,616 7,054 7,515 7,999 7,372 7,861 8,374 8,913 9,830

10,481 11,166 11,885

P.C.

2.24

2.29

2.34

2.39

2.71

2.77

2.83

2.89

3.26

3.33

3.40

3.48

3.82

3.91

4.00

4.08

CA 5,260 5,613 5,987 6,380 6,348 6,775 7,225 7,700 7,074 7,549 8,051 8,580 9,432

10,065 10,735 11,440

P.C.

2.40

2.46

2.52

2.58

2.90

2.97

3.05

3.12

3.49

3.58

3.66

3.75

4.10

4.20

4.30

4.40

CA 5,025 5,371 5,736 6,123 6,080 6,490

6.925 7,383 6,775 7,232 7,716 8,227 9,034 9,643

10,288 10,969

P.C.

2.56

2.63

2.70

2.78

3.10

3.18

3.26

3.35

3.73

3.82

3.92

4.03

4.37

4.49

4.61

4.74

CA 4,777 5,117 5,476 5,855 5,786 6,189 6,616 7,066 6,447 6,897 7,372 7,873 8,596 9,196 9,829

10,497

P.C.

2.73

2.80

2.88

2.98

3.29

3.38

3.48

3.60

3.96

4.07

4.19

4.32

4.65

4.77

4.91

5.08

CA 4,516 4,852 5,206 5,578 5,450 5,856 6,284 6,732 6,073 6,525 7,002 7,501 8,097 8,701 9,335

10,002

P.C.

2.89

2.97

3.07

3.18

3.49

3.59

3.71

3.85

4.20

4.31

4.46

4.63

4.93

5.06

5.23

5.44

CA 4,408 4,740 5,096 5,464 5,320 5,721 6,150 6,595 5,928 6,375 6,853 7,348 7,903 8,499 9,137 9,798

P.C.

2.96

3.03

3.14

3.27

3.57

3.67

3.79

3.95

4.30

4.41

4.56

4.75

5.05

5.18

5.36

5.58

Outdoor intake air D.B.:Indoor

Intake

air

W.B.:

DATA

1. PERFORMANCE DATA

1) COOLING CAPACITY 50Hz

Note CA : Capacity (W)

P.C. : Power consumption (kW)

2) COOLING CAPACITY 60Hz

Cooling capacity correction factors

Page 14

Service Ref.

PKH-2FKA

PKH-2.5FKA

PKH-3FKA

PKH-4FKSA

15 20 25 15 20 25 15 20 25 15 20 25

CA 4,280 4,098 3,939 4,931 4,721 4,537 6,232 5,967 5,735 7,328 7,016 6,743

-10 -5 0 5 10 15

Outdoor intake air D.B.°C

Refrigerant piping length (one way)

PKH-2FKA

PKH-2.5FKA

PKH-3FKA

PKH-4FKSA

Service Ref.

1.00

10m

1.00

15m

1.00

20m

1.00

25m

1.00

30m

1.00

35m

0.998

40m

0.995

45m

—

0.993

50m

—

0.990

Indoor Intake

air

W.B.°C

P.C.

1.56

1.68

1.79

1.59

1.71

1.82

2.07

2.23

2.37

2.25

2.43

2.58

CA 4,905 4,713 4,521 5,651 5,429 5,209 7,142 6,862 6,583 8,398 8,068 7,741

P.C.

1.73

1.86

1.98

1.76

1.89

2.02

2.29

2.47

2.63

2.49

2.68

2.86

CA 5,591 5,380 5,167 6,441 6,198 5,952 8,141 7,834 7,523 9,572 9,211 8,845

P.C.

1.90

2.05

2.19

1.93

2.09

2.23

2.52

2.72

2.91

2.74

2.95

3.16

CA 6,336 6,100 5,874 7,229 7,027 6,767 9,225 8,881 8,553

10,847 10,443 10,056

P.C.

2.09

2.25

2.41

2.12

2.29

2.45

2.77

2.99

3.20

3.01

3.24

3.47

CA 7,139 6,871 6,643 8,225 7,916 7,653

10,395 10,004

9,672

12,223

11,763 11,373

P.C.

2.28

2.46

2.64

2.32

2.50

2.68

3.03

3.26

3.50

3.29

3.54

3.80

CA 8,000 7,693 7,473 9,216 8,863 8,609

11,648

11,201 10,881 13,696 13,171 12,794

P.C.

2.49

2.68

2.87

2.53

2.73

2.92

3.30

3.56

3.82

3.59

3.86

4.14

Service Ref.

PKH-2FKA

PKH-2.5FKA

PKH-3FKA

PKH-4FKSA

15 20 25 15 20 25 15 20 25 15 20 25

CA 4,520 4,328 4,159 5,479 5,246 5,041 6,506 6,229 5,987 8,355 8,000 7,688

-10 -5 0 5 10 15

Outdoor intake air D.B.°CIndoor

Intake

air

W.B.°C

P.C.

1.73

1.86

1.97

1.98

2.13

2.26

2.34

2.52

2.68

2.78

2.99

3.18

CA 5,180 4,977 4,775 6,279 6,032 5,787 7,456 7,163 6,873 9,575 9,199 8,826

P.C.

1.91

2.06

2.19

2.36

2.51

2.59

2.79

2.97

2.07

3.31

3.52

CA 5,904 5,681 5,456 7,157 6,887 6,613 8,498 8,178 7,853

10,914 10,502 10,085

P.C.

2.10

2.26

2.42

2.41

2.60

2.77

2.85

3.07

3.28

3.38

3.64

3.89

CA 6,691 6,441 6,203 8,110 7,808 7,519 9,631 9,272 8,928

12,368 11,907 11,466

P.C.

2.31

2.48

2.66

2.64

2.85

3.05

3.13

3.37

3.61

3.71

4.00

4.28

CA 7,539 7,256 7,015 9,138 8,795 8,503

10,852 10,444 10,097 13,936 13,412 12,967

P.C.

2.52

2.72

2.91

2.89

3.11

3.34

3.42

3.68

3.95

4.06

4.37

4.69

CA 8,448 8,124 7,891

10,240

9,847 9,565

12,160 11,694 11,359 15,616 15,017 14,587

P.C.

2.75

2.96

3.18

3.15

3.39

3.64

3.73

4.01

4.31

4.42

4.76

5.11

3) HEATING CAPACITY 50Hz

Note CA : Capacity (W)

P.C. : Power consumption (kW)

4) HEATING CAPACITY 60Hz

Note CA : Capacity (W)

P.C. : Power consumption (kW)

Heating capacity correction factors

Page 15

2. PERFORMANCE CURVE

1.4

1.2

1.0

0.8

0.6

1.4

1.2

1.0

0.8

0.6

0.4

-5 5 15 25 35 46 OUTDOOR D.B.(:)

TOTAL INPUT (RATIO) CAPACITY (RATIO)

INDOOR W.B.(:)

22 20 18 16

1.4

1.2

1.0

0.8

0.6

1.4

1.2

1.0

0.8

0.6

0.4

-12-10 -5 0 5 10 15 OUTDOOR W.B. (:)

INDOOR D.B. (:)

15 20 25

25 20 15

TOTAL INPUT (RATIO) CAPACITY (RATIO)

Cooling

Heating

Page 16

Service Ref.

Indoor unit

Outdoor unit

Cool

5,400

2.19

0.07

0.32

0.40

2.12

9.83 43

Heat

6,150

2.21

0.07

0.32

0.40

2.14

9.93 43

Heat

7,100

2.26

0.095

0.440

0.70

2.16

10.02 52

Heat

9,000

3.02

0.095

0.440

0.70

2.92

13.68 54

Heat

9,000

3.02

0.095

0.440

0.70

2.92

4.88 34

Heat

10,500

3.27

0.114

0.530

0.80

3.16

5.28 37

Cool

6,400

2.51

0.095

0.440

0.70

2.41

11.18 52

Cool

7,800

3.23

0.095

0.440

0.70

3.13

14.67 54

Cool

7,800

3.23

0.095

0.440

0.70

3.13

5.23 34

Cool

9,400

3.28

0.11

0.530

0.80

3.17

5.29 37

PKH-2FKA

PUH-2VKA3

PKH-2.5FKA2

PUH-2.5VKA3 PUH-3VKA3

PKH-3FKA2

PUH-3YKA3 PUH-3YKA4

PKH-4FKSA2

PKH-2.5FKA3 PKH-3FKA3 PKH-4FKSA3

PUH-4YKSA4

PUH-2VKA2 PUH-2.5VKA2 PUH-3VKA2

PUH-3YKA2

PUH-4YKSA3

Indoor

unit

Outdoor

unit

Mode Capacity(W) Total Input(kW)

Input(kW) Current(A) Starting current(A) Input(kW) Current(A) Starting current(A)

Service Ref.

Indoor unit

Outdoor unit

Cool

5,450

2.23

0.070

0.320

0.40

2.16

9.78 44

Heat

6,200

2.25

0.070

0.320

0.40

2.18

9.87 44

PKH-2FKA

PUH-2VKA3

PKH-2.5FKA2

PUH-2.5VKA3 PUH-3VKA3

PKH-3FKA2

PUH-3YKA3 PUH-3YKA4

PKH-4FKSA2

PKH-2.5FKA3 PKH-3FKA3 PKH-4FKSA3

PUH-4YKSA4

PUH-2VKA2 PUH-2.5VKA2 PUH-3VKA2

PUH-3YKA2

PUH-4YKSA3

Indoor

unit

Outdoor

unit

Mode Capacity(W) Total Input(kW)

Input(kW) Current(A) Starting current(A) Input(kW) Current(A) Starting current(A)

Service Ref.

Indoor unit

Outdoor unit

PKH-2FKA

PUH-2VKA3

PKH-2.5FKA2

PUH-2.5VKA3 PUH-3VKA3

PKH-3FKA2

PUH-3YKA3 PUH-3YKA4

PKH-4FKSA2

PKH-2.5FKA3 PKH-3FKA3 PKH-4FKSA3

PUH-4YKSA4

PUH-2VKA2 PUH-2.5VKA2 PUH-3VKA2

PUH-3YKA2

PUH-4YKSA3

Indoor

unit

Outdoor

unit

Mode Capacity(W) Total Input(kW)

Input(kW) Current(A) Starting current(A) Input(kW) Current(A) Starting current(A)

Heat

7,150

2.30

0.095

0.440

0.80

2.20

9.86 52

Heat

9,050

3.03

0.095

0.440

0.80

2.93

13.27 56

Heat

9,050

3.03

0.095

0.440

0.80

2.93

4.86 36

Heat

10,600

3.29

0.114

0.530

0.90

3.18

5.22 39

Cool

6,450

2.54

0.095

0.440

0.80

2.44

10.94 52

Cool

7,850

3.24

0.095

0.440

0.80

3.14

14.22 56

Cool

7,850

3.24

0.095

0.440

0.80

3.14

5.21 36

Cool

9,450

3.30

0.114

0.530

0.90

3.19

5.23 39

Cool

5,500

2.27

0.070

0.320

0.40

2.20

9.86 45

Heat

6,250

2.29

0.070

0.320

0.40

2.22

9.95 45

Heat

7,200

2.33

0.095

0.440

0.80

2.23

9.78 52

Heat

9,100

3.04

0.095

0.440

0.80

2.94

12.89 58

Heat

9,100

3.04

0.095

0.440

0.80

2.94

4.81 37

Heat

10,700

3.30

0.11

0.53

0.90

3.19

5.22 40

Cool

6,500

2.56

0.095

0.440

0.80

2.46

10.68 52

Cool

7,900

3.25

0.095

0.440

0.80

3.15

13.82 58

Cool

7,900

3.25

0.095

0.440

0.80

3.15

5.16 37

Cool

9,500

3.31

0.114

0.530

0.90

3.20

5.24 40

3. ELECTRICAL DATA 50Hz

Indoor unit· · · · · 220V 50Hz 1phase Outdoor unit · · · 220V 50Hz 1phase / 380V 50Hz 3phase

Indoor unit· · · · · 230V 50Hz 1phase Outdoor unit· · · · 230V 50Hz 1phase / 400V 50Hz 3phase

Indoor unit· · · · · 240V 50Hz 1phase Outdoor unit· · · · 240V 50Hz 1phase / 415V 50Hz 3phase

Page 17

3. ELECTRICAL DATA 60Hz

Indoor unit· · · · · 220V 60Hz 1phase Outdoor unit · · · 220V 60Hz 1phase/3phases Rating condition (Cooling)

Indoor unit

Service Ref.

Outdoor unit

Mode Capacity (W) Total Input (kW)

Input (kW) Current (A)

unit

Indoor

Starting current (A) Input (kW) Current (A)

unit

Starting current (A)

Outdoor

Rating condition (Cooling) Rating condition (Heating)

Indoor unit

Service Ref.

Outdoor unit

Mode Capacity (W) Total Input (kW)

Input (kW) Current (A)

unit

Indoor

Starting current (A) Input (kW) Current (A)

unit

Starting current (A)

Outdoor

...

Indoor D.B. 27:, W.B. 19: Outdoor D.B. 35:

PKH-2FKA PUH-2NKA1

PUH-2NKA

Cooling

5,800

2.49

0.08

0.37

0.50

2.41

11.07 54

...

Indoor D.B. 29:, W.B. 19: Outdoor D.B. 46:, W.B. 24:

...

Indoor D.B. 21: Outdoor D.B. 7:, W.B. 6:

PKH-2FKA PUH-2NKA1

PUH-2NKA

Cooling

5,100

2.91

0.08

0.37

0.50

2.83

12.99 54

Heating

6,600

2.53

0.08

0.37

1.50

2.45

11.2 54

PKH-2.5FKA2 PKH-2.5FKA

PUH-2.5NKA1 PUH-2.5NKA

Cooling

7,000

3.01

0.095

0.44

0.70

2.91

13.50 58

PKH-2.5FKA2 PKH-2.5FKA

PUH-2.5NKA1 PUH-2.5NKA

Cooling

5,900

Heating

8,000

3.53

0.095

0.44

0.70

3.43

15.75 58

2.90

0.44

0.70

2.80

13.0 58

(SSA385, 386)

}

Rating condition (Cooling)

Indoor unit

Service Ref.

Outdoor unit

Mode Capacity (W) Total Input (kW)

Input (kW) Current (A)

unit

Indoor

Starting current (A) Input (kW) Current (A)

unit

Starting current (A)

Outdoor

Rating condition (Cooling) Rating condition (Heating)

Indoor unit

Service Ref.

Outdoor unit

Mode Capacity (W) Total Input (kW)

Input (kW) Current (A)

unit

Indoor

Starting current (A) Input (kW) Current (A)

unit

Starting current (A)

Outdoor

...

Indoor D.B. 27:, W.B. 19: Outdoor D.B. 35:

Heating

2 3

12,200

4.07

0.114

0.53

0.80

3.96

11.3 69

3.62

0.44

0.70

3.52

2 3

PKH-4FKSA PKH-4FKSA

PUH-4TKSA1

Cooling

10,400

4.25

0.114

0.53

0.80

4.14

11.81

PKH-3FKA PKH-3FKA

PUH-3NKA1 PUH-3NKA

Cooling

7,800

0.095

16.49 80

...

Indoor D.B. 29:, 19: W.B. Outdoor D.B. 46:, W.B. 24:

...

Indoor D.B. 21: Outdoor D.B. 7:, W.B. 6:

PKH-3FKA PKH-3FKA

PUH-3NKA1 PUH-3NKA

Cooling

6,900

4.23

0.095

0.44

0.70

4.13

18.77 80

2 3

Heating

9,500

3.43

0.095

0.44

0.70

3.33

15.6 80

PKH-4FKSA2 PKH-4FKSA

PUH-4TKSA1

Cooling

9,400

5.12

0.114

0.53

0.80

5.01

14.14 69

(SSA385, 386)

}

Page 18

Service Ref.

Mode Capacity Input

Indoor unit Service Ref.

Phase,Hz Volts Amperes

Outdoor unit Service Ref.

Phase,Hz Volts Amperes

Discharge pressure

Suction pressure

Discahrge temperature

Condensing temperature

Suction temperature

Ref.pipe length

Intake air temperature

Discharge air temperature

Intake air temperature

1.87

(

19.1

)

1.99

(

20.3

)

2.00

(

20.4

)

1.62

(

16.5

)

2.07

(

21.1

)

1.96

(

20.0

)

2.07

(

21.1

)

1.96

(

20.0

)

1.80

(

18.4

)

1.69

(

17.2

)

0.42

(

4.28

)

0.36

(

3.67

)

0.52 (

5.3

)

0.36

(

3.67

)

0.45

(

4.59

)

0.37

(

37.7

)

0.45

(

4.59

)

0.35

(

3.57

)

0.51

(

5.2

)

0.37

(

37.7

)

Cooling Heating

5,500

2.27

6,250

2.29

0.320 0.320

9.86 9.95

86 90 51 53

2 -2

5 5 27 20 19 15

13.0 44.3 35 7 24 6

0.71

0.15

1,50

240

PUH-2VKA

Cooling Heating

6,500

2.56

7,200

2.33

0.440 0.440

10.68 9.78

85 74 53 44

7 -3

5 5 27 20 19 15

14.5 37.9 35 7 24 6

0.83

0.11

1,50

240

PUH-2.5VKA

Cooling Heating

7,900

3.25

9,100

3.04

0.440 0.440

13.82 12.89

90 86 53 52

6 -2

5 5 27 20 19 15

13.2 43.4 35 7 24 6

0.74

0.12

1,50

240

PUH-3VKA

Cooling Heating

7,900

3.25

9,100

3.04

0.440 0.440

5.16 4.81

90 86 53 52

6 -2

5 5 27 20 19 15

13.2 43.4 35 7 24 6

0.74

0.12

3,50

415

PUH-3YKA

Cooling Heating

9,500

3.31

10,700

3.30

0.530 0.530

5.24 5.22

79 76 49 46

8 -1

5 5 27 20 19 15

14.3 40.4 35 7 24 6

0.80

0.11

1,50

3,50

240

415

PUH-4YKSA

PUH-2VKA3 PUH-2.5VKA3 PUH-3VKA3

PUH-3YKA3 PUH-3YKA4

PUH-4YKSA4

SHF

D.B.

W.B.

D.B.

W.B.

˚C

˚C ˚C

˚C ˚C ˚C

MPa

(

kg/cm

)

MPa

(

kg/cm

)

PKH-2FKA3

PKH-2.5FKA2 PKH-2.5FKA3

PKH-3FKA2 PKH-4FKSA2 PKH-3FKA3 PKH-4FKSA3

PKH-2FKA3

PKH-2.5FKA2 PKH-3FKA2 PKH-4FKSA2 PKH-2.5FKA3 PKH-3FKA3 PKH-4FKSA3

Outdoor

side

Indoor side Refrigetrant circuit Electrical circuit Total

4. STANDARD OPERATION DATA 50Hz

The unit of pressure has been changed to MPa on the international system of unit (SI unit system). The converted score against the traditional unit system can be gotten according to the formula below.

1(MPa) = 10.2(kg/FF)

Page 19

4. STANDARD OPERATION DATA 60Hz

PKH-2.5FKA PKH-2.5FKA3

Cooling

7,000

3.01

PKH-2.5FKA2 PKH-2.5FKA3

1.60 220

0.44

PUH-2.5NKA PUH-2.5NKA2

1.60 220

13.50

2.12

(21.6)

0.52

(5.3)

78.3

54.2

5.8 5

27 19 14 35 24

0.79

0.11

Service Ref.

Mode

Total

Capacity Input

Indoor unit Service Ref.

Phase, Hz Volts Amperes

Outdoor unit Service Ref.

Electrical circuit

Phase, Hz Volts Amperes

Discharge pressure

Suction pressure Discharge temperature

Condensing temperature

Refrigerant circuit

Suction temperature Ref. pipe length

Intake air temperature Discharge air temperature

Indoor side

Intake air temperature

side

Outdoor

SHF

D.B.

W.B.

D.B. D.B.

W.B.

V A

Mpa

(kgf/f)

Mpa

(kgf/f)

˚C ˚C ˚C

m ˚C ˚C ˚C ˚C ˚C

PKH-2FKA

Cooling

5,800

2.49

PKH-2FKA3

1.60 220

0.37

PUH-2NKA PUH-2NKA2

1.60 220

11.07

1.98

(20.2)

0.41 (4.2)

70.2

51.8

2.4 5

27 19 13 35 24

0.70

0.19

Heating

6,600

2.53

0.37

11.2

2.05

(21.0)

0.34 (3.5)

98.3

53.7

-3.0 5

15.5

45.7 7 6

— —

The unit of pressure has been changed to Mpa based on the international SI system. The conversion factor is : 1(MPa)=10.2(kgf/FF)

Heating

8,000

2.90

0.44

13.0

1.82

(18.6)

0.36

(3.7)

82.9

48.0

-3.4 5

15.5

40.2 7 6

— —

Cooling

7,800

3.62

0.44

16.49

2.07

(21.1)

0.45 (4.6)

76.1

56.7

13.1

0.74

0.11

PKH-3FKA PKH-3FKA3

Heating

9,500

3.43

PKH-3FKA2 PKH-3FKA3

1.60 220

0.44

PUH-3NKA PUH-3NKA2

1.60 220

15.6

2.02

(20.6)

0.34 (3.5)

83.7

52.2

4.6 5

27 19

15.5

44.0 35 24

-2.9 5

7 6

— —

PKH-4FKSA

PKH-4FKSA3

Cooling

10,400

4.25

Heating

12,200

4.07

PKH-4FKSA2 PKH-4FKSA3

1.60 220

0.53

PUH-4TKSA

0.53

3.60 220

11.81

1.97

(20.1)

0.46 (4.7)

81.6

51.1

5.1 5

27 19

13.5 35 24

0.76

0.11

11.30

1.90

(19.4)

0.35 (3.6)

87.1

50.2

-2.9 5

15.5

43.5 7 6

— —

5. OUTLET AIR SPEED AND COVERAGE RANGE

Service Ref.

Air flow Air speed Coverage range

K/min

m/sec.

PKH-2FKA

4.0

9.1

PKH-2.5FKA2 PKH-2.5FKA3

4.9

12.4

The air coverage range is the value up to the position where the air speed is 0.25m/sec. when air is blown out horizontally from the unit at the Hi notch position. The coverage range should be used only as a general guideline since it varies according to the size of the room and the furniture inside the room.

PKH-3FKA2 PKH-3FKA3

4.9

12.4

PKH-4FKSA2 PKH-4FKSA3

5.4

15.3

Page 20

Pipe position

Left side

Lequid pipe

Gas pipe

Service space required

around indoor unit

(100 for left-hand

side piping)

Right side

130 or less

2 tapping screws

for installation plate

(Necessary clearance for

Unit installation)

Drain pipe

Front

50 or more

2-unit hangers

Unit cennter

Liquid pipe position

Gas pipe position

(Width of unit)

Knock out hole for

left-rear piping

Knock out hole for

left-rear piping

Rear piping hole

2 X5 - 2.9 hole

for tapping screw

Details of installation plate

1 Sleeves are available on

the market.

2 This size shows the lower

end of through hole.

Sleeve

90 90~ 100

Through hole

150 or more

Knock out hole for

left-hand side piping

Ref.pipes & drain pipe

215

168

2134

300

30 or more

180 or more

Left side

Air intake

Front

1250

449 Air intake

Auto vanes

Service panel for

power supply connection

449 Air intake

968 Air intake

236

227

Right side

Terminal block

Right side

Knock out hole for right piping

(2:1)

Knock-out hole for

night-hand side piping

Knock out hole

for piping

Knock out hole for piping

Terminal block for control

Terminal block & pipe position

Drainage

Drainage(Flexible hole: length 1200)

Liquid pipe

Gas pipe

Lower side

Terminal block for

power supply

Knock out hole for under-piping

15 or less

bolt

Installation bolt position

200

(2:1)

Lower side

976

16 -louvers

(manual)

500

479 Air outlet479 Air outlet

173

223

222

143

553

635

685

170

190

200

1100

Knock out hole

for piping

3/8F

5/8F

0355380130

177

227

(178)

(375)

447

190

13- 14

hole

1250

330

68- 5

hole

277

Tapping screw

300

625

476

450

405

323

276

229

179

150

174

224

271

318

374

405

450

476

486

625

(Height ut unit)

286X

R52.5R52.5R52.5

OUTLINES AND DIMENSIONS

1. INDOOR UNIT PKH-2FKA3

Unit : mm21Unit : mm

Page 21

235 45

235

62.5

58 42

340

197

Top

Front

Right side

Left side

1400

1090

Air intake

235

Knock out hole for right piping

Refrigerant pipe. Drain pipe

Knock out hole for

left piping

Drain hose for

left-hand side piping

Drain hose

Lower side

Auto vane

(Gas pipe)

Drain hose

Bolt

Gas pipe

15 and less

Terminal block for power supply

Terminal block for control

Terminal block for remote controller

(Liquid pipe)

Liquid pipe 9.52(3/8F)

Gas pipe 15.88(5/8F)

Liquid pipe

4 39

100

2980

280

3030

18430

100

A B C

Knock out hole for piping

1110

183

240

1120

552

120

107

111

Air outlet

552

Air outlet

Change vane (manual)

Under panel

Removable at left-hand

side piping

Knock out hole for under-piping

Refrigerant pipe. Drain pipe

Rear piping opening

Range for left rear piping opening

12-ø6 hole for

tapping screw

66-ø6 hole for

tapping screw

Wall fixture

Unit center

32-ø12 hole for bolt

225

900

990

455

285

245

240 280 314

610

Drainage range

on left-hand side

Drainage range

on right-hand side

10 91=(910)

180

PKH-2.5FKA2 PKH-3FKA2 PKH-2.5FKA3 PKH-3FKA3

Page 22

235 45

235

62.5

58 42

340

197

Top

Front

Right side

Left side

1680

1370

Air intake

235

Knock out hole for right piping

Knock out hole for left piping

Drain hose for left-hand side piping

Drain hose

Lower side

Auto vane

(Gas pipe)

Bolt

Gas pipe

15 and less

Terminal block for power supply

Terminal block for control

Terminal block for remote controller

(Liquid pipe)

Gas pipe 19.05(3/4F)

Liquid pipe 9.52(3/8F)

Liquid pipe

4 39

100

2980

280

3030

18430

100

A B C

Knock out hole for wiring

1110

183

240

1400

120

102

111

694

Air outlet

694

Air outlet

Change vane (manual)

Under panel

(Removable at left-hand side piping)

Knock out hole for under-piping

Refrigerant pipe. Drain pipe

Rear piping opening

Range for left rear piping openingRange for left rear piping opening

12-ø6 hole for tapping screw

84-ø6 hole for

tapping screw

Wall fixture

Unit out line

Unit center

41-ø12 hole for bolt

295 225

900

1270

595

285

245

240 280 314

750

Drainage range

on right-hand side

13 91=(1183)

180

Drainage range

on left-hand side

PKH-4FKSA2 PKH-4FKSA3

Unit : mm

Page 23

130

Rear side wiring arrangement opening.

120

FILTER

CHECK MODE

TEST RUN

83.5

SW18

SW17

CHECK

FILTER

CHECK

CHECK MODE TEST RUN

CAUTION

2. REMOTE CONTROLLER

Unit : mm(inch)

Page 24

CN2

OFF ON

4321

SW18

TB6

A01 B02

OFF ON

R.B

45 23 1

CN1

3 2 1

87654321

SW17

LED1 12V POWER

LED2 5V POWER

SW7

SW2

123456101234

SW5

2 1

CN2L

LOSSNAY

TRANSMISSION WIRES DC12V

1 3 5

FAN2

HEATER

CN24

REMOCON

POWER

CN40

4 2 13

SW1

ON OFF

123456789

SW6

1234

123

SW3

ON OFF

REMOCON

CN22

RT2

GRN/YLW

I.B

TO OUTDOOR UNIT CONNECTING WIRES DC12V

ZNR

21 1 13 3

FAN1

POWER

OUTDOOR

TRANS

VANE

TRANS

CND

CN30

CN6V

CN4T

CN23

CNT

INTAKE

CN20

PIPE

CN21

CN51

CENTRALLY

CONTROL

1 12 2

RT1

RED

WHT

BRN

TB5

BLU BLU

TB4

TB2

ORN YLW

BRN

RED

240V

14.2VAC

11.1VAC

230V

220V

BLU

YLW

WHT

RED

BLK

WHT

RED

POWER SUPPLY ~

(1 PHASE) AC220-240V 50Hz AC220V 60Hz

RED

ORN

YLW

WIRING DIAGRAM

PKH-2FKA3

SYMBOL

C CN1<R.B> PROGRAM TIMER CONNECTOR CN2<R.B> REMOTE SWITCH CONNECTOR CN2L<I.B> LOSSNAY CONNECTOR CN51<I.B> CENTRALLY CONTROL CONNECTOR FAN2 EMERGENCY OPERATION CONNECTOR F1<I.B> FUSE (6.3A 250V) I.B INDOOR CONTROLLER BOARD LED1<I.B> DC 12V POWER LED LED2<I.B> DC 5V POWER LED LS LIMIT SWITCH MF FAN MOTOR MV VANE MOTOR R.B REMOTE CONTROLLER BOARD

RT1

FAN MOTOR CAPACITOR

ROOM TEMPERATURE THERMISTOR (0°C/15KΩ. 25°C/5.4KΩ DETECT)

NAME

SYMBOL NAME

RT2

SW1<I.B> SW2<I.B> SW3<I.B> SW5.6<I.B> SW7<I.B> SW17<R.B> SW18<R.B> T TB2 TB4

TB5.6

X4<I.B> ZNR

PIPE TEMPERATURE THERMISTOR (0°C/15KΩ. 25°C/5.4KΩ DETECT) MODE SELECTOR ADDRESS SELECTOR EMERGENCY OPERATION SWITCH MODEL SELECTOR MODEL SELECTOR ADDRESS SELECTOR FUNCTION SELECTOR

TRANSFORMER POWER SUPPLYTERMINAL BLOCK

INDOOR/OUTDOOR CONNECTING WIRE TERMINAL BLOCK

REMOTE CONTROLLER TRANSMISSION LINE TERMINAL BLOCK FAN MOTOR RELAY

VARISTOR

NOTES:

1. Since the indoor fan motor (MF) is connected with 230, 240V power, using 220V power will require a setting change of the dip switch (SW7<I.B>) on the indoor controller board as shown in fig :

fig w1

Indoor fan motor (MF) for 220V.

2. Since the indoor transformer (T) is connected with 240V power, if 220,230V power is used. Change the wiring connection showing fig :

fig w2

When power supply is

3. Since the outdoor side electric wiring may change be sure to check the outdoor unit electric wiring for servicing.

4. Indoor and outdoor connecting wires are made with polarities, make wiring matching terminal numbers.

5. Symbols used in wiring diagram above are, : Connector. : Terminal block.

6. Emergency operation If remote controller of microcomputer fails but there is no other trouble, emergency operation is possible by setting dip switch (SW3<I.B>) on the indoor controller board.

[Check items] (1) Make sure that no other trouble exist the outdoor unit. Trouble with the outdoor unit prevents emergency operation.

(If any trouble exists the outdoor unit error code “P8” will be displayed on the remote controller and the trouble position will be shown on the outdoor controller board LED. See electric wiring diagram of the outdoor unit for details.)

(2)Make sure that there is no trouble with the indoor fan.

Emergency operation will be continuous operation mode due to power ON/OFF(ON/OFF with the remote controller is not possible). [Emergency operation procedure]

(1)Set the dip switch (SW3<I.B>) on the indoor controller board to

(2)Turn on outdoor unit side circuit breaker, then indoor unit side circuit breaker.

In this order.

(3)During emergency operation indoor fan runs at high speed but automatic vane remains stop. (4)Thermostat will not function. Cold air blows out for defrosting during heating thus do not operate defrosting for along time. (5)Emergency cooling should be limited to 10 hours maximum.

(The indoor unit heat exchanger may freeze).

(6)After each operation, and set all dip switches (SW3<I.B>) to OFF. BG79N618H01

230V

220V

SW5

ON OFF

240V 230V 220V

2 3 4

YELLOW ORANGE RED

ON OFF

2 3 4

1 on and 2 off for cooling and 1 - 2 on for heating.

Page 25

CN2

OFF ON

4321

SW18

LED1 12V POWER

L N

GRN/YLW

SW7

CN51

CENTRALLY

CONTROL

LED2 5V POWER

ON OFF

TRANSMISSION WIRES

DC12V

TB6

A01 B02

OFF ON

R.B

45 23 1

CN1

3 2 1

87654321

SW17

HEATER

CN24

REMOCON

POWER

CN40

4 2 13

SW2

OFF

123456

SW6

1234

109654

1234

SW7 SW3

ON OFF

REMOCON

CN22

OFF

12341234

4FKSA2.5,3FKAMODELS

RT2

CN27

D.U.M

I.B

TO OUTDOOR UNIT CONNECTING WIRES DC12V

ZNR

F2 F1

12345

21 1 13 3

FAN1

POWER

OUTDOOR

TRANS

VANE

LOSSNAY

TRANS

CND

CN30

CN6V

CN4T

CN2L

CNT

DRAIN

CN50

INTAKE

CN20

PIPE

CN21

1 12 2

RT1

POWER SUPPLY ~ (1 PHASE) AC220-240V 50Hz AC220V 60Hz

WHT

BLK

RED

TB2

BRN

TB5

BLU BLU

TB4

ORN YLW

BRN

RED

240V

14.3VAC

10VAC

230V 220V

BLU

YLW

WHT

RED

ORN

YLW

PKH-2.5FKA2PKH-3FKA2PKH-4FKSA PKH-2.5FKA3PKH-3FKA3PKH-4FKSA

2 3

SYMBOL

C CN1<R.B> PROGRAM TIMER CONNECTOR CN2<R.B> REMOTE SWITCH CONNECTOR CN2L<I.B> LOSSNAY CONNECTOR CN27<I.B> DRAIN LIFT-UP MECHANISM CONNECTOR CN51<I.B> CENTRALLY CONTROL CONNECTOR F1, 2 <I.B> FUSE (6.3A 250V) I.B INDOOR CONTROLLER BOARD J1 MODE SELECTOR JUMPER RESISTOR J5 MODE SELECTOR JUMPER RESISTOR J9 MODE SELECTOR JUMPER RESISTOR LED1<I.B> DC 12V POWER LED LED2<I.B> DC 5V POWER LED MF FAN MOTOR MV VANE MOTOR R.B REMOTE CONTROLLER BOARD

FAN MOTOR CAPACITOR

NAME

SYMBOL

RT1

RT2

SW2<I.B> ADDRESS SELECTOR SW3<I.B> EMERGENCY OPERATION SWITCH SW6<I.B> MODEL SELECTOR SW7<I.B> MODEL SELECTOR SW17<R.B> ADDRESS SELECTOR SW18<R.B> FUNCTION SELECTOR T TRANSFORMER TB2 POWER SUPPLY TERMINAL BLOCK TB4 INDOOR/OUTDOOR CONNECTING WIRE TERMINAL BLOCK TB5.6

X4<I.B> FAN MOTOR RELAY ZNR VARISTOR

ROOM TEMPERATURE THERMISTOR (0°C/15KO. 25°C/5.4KO DETECT)

PIPE TEMPERATURE THERMISTOR (0°C/15KO. 25°C/5.4KO DETECT)

REMOTE CONTROLLER TRANSMISSION LINE TERMINAL BLOCK

NAME

NOTES:

1. Since the indoor fan motor (MF) is connected with 230, 240V power, using 220V power will require a setting change of the dip switch (SW7<I.B>) on the indoor controller board as shown in fig :

fig w1

Indoor fan motor (MF) for 220V.

2. Since the indoor transformer (T) is connected with 240V power, if 220,230V power is used. Change the wiring connection showing fig :

fig w2

When power supply is

3. Since the outdoor side electric wiring may change be sure to check the outdoor unit electric wiring for servicing.

4. Indoor and outdoor connecting wires are made with polarities, make wiring matching terminal numbers.

5. Symbols used in wiring diagram above are, : Connector. : Terminal block.

6. Emergency operation If remote controller or microcomputer fails but there is no other trouble, emergency operation is possible by setting dip switch (SW3<I.B>) on the indoor controller board.

[Check items] (1) Make sure that no other trouble exist the outdoor unit. Trouble with the outdoor unit prevents emergency operation.

(2)Make sure that there is no trouble with the indoor fan.

Emergency operation will be continuous operation mode due to power ON/OFF(ON/OFF with the remote controller is not possible). [Emergency operation procedure]

(1)Set the dip switch (SW3<I.B>) on the indoor controller board to 1 on and 2 off for cooling and 1 - 2 on for heating. (2)Turn on outdoor unit side circuit breaker, then indoor unit side circuit breaker.

In this order.

(The indoor unit heat exchanger may freeze).

(6)After each operation, set all dip switches (SW3<I.B>) to OFF.

230V

220V

SW7

ON OFF

240V

230V

220V

2 3 4

YELLOW ORANGE RED

ON OFF

2 3 4

BG79N621H01

Page 26

Indoor heat exchanger

Indoor unit

Refrigerant pipe (option)

15.88mm( 5/8") (with heat insulator)

Refrigerant pipe (option)

9.52mm( 3/8") (with heat insulator)

Flexible tube

Flared connection

Ball valve Strainer

Ball valve (with Service port)

Oil separator

4-way valve

Service port

High pressure control switch

Accumulator

Compressor

Strainer

Restrictor valve

Outdoor heat exchanger

Outdoor coil thermistor (TH)

Pipe temperature thermistor (RT2)

PKH-2 (O.D.3.2 I.D.1.6 L300) PKH-2.5 (O.D.3.2 I.D.1.8 L430)

PKH-3 (O.D.4.0 I.D.2.0 L500)

PUH-2 (O.D.4.0 I.D.2.0 L430) PUH-2.5 (O.D.4.0 I.D.2.4 L1550) PUH-3 (O.D.4.0 I.D.2.4 L1070)

Distributor with strainer

Capillary tube

Restrictor valve

Strainer

Bypass valve

Outdoor unit

Indoor heat exchanger

Indoor unit

Refrigerant pipe (option)

19.05mm( 3/4") (with heat insulator)

Refrigerant pipe (option)

9.52mm( 3/8") (with heat insulator)

Flexible tube

Flared connection

Ball valve Strainer

Ball valve (with Service port)

Oil separator

4-way valve

Service port (check)

Service port

High pressure control switch

Accumulator

Compressor

Strainer

Restrictor valve

Outdoor heat exchanger

Outdoor coil thermistor (TH3)

Pipe temperature thermistor (RT2)

Distributor with strainer

Capillary tube

Restrictor valve

Strainer

Bypass valve

Outdoor unit

PKH-4 (O.D.4.0 I.D.2.0 L400)

PUH-4 (O.D.3.2 I.D.2.0 L820) 2pcs

Refrigerant flow in cooling Refrigerant flow in heating

R.V. coil Heating:ON Cooling:OFF

REFRIGERANT SYSTEM DIAGRAM

PKH-2FKA3 / PUH-2VKA2 , PUH-2VKA3 PKH-2.5FKA2 , PKH-2.5FKA3 / PUH-2.5VKA2 , PUH-2.5VKA3 PKH-3FKA2 , PKH-3FKA3 / PUH-3VKA2 , PUH-3VKA3

/ PUH-3YKA2 , PUH-3YKA3 , PUH-3YKA4

Unit : mm

PKH-4FKSA2 , PKH-4FKSA3 / PUH-4YKSA3 , PUH-4YKSA4

Page 27

PKH-2FKA

/ PUH-2NKA1, PUH-2NKA

PKH-2.5FKA2, PKH-2.5FKA3/ PUH-2.5NKA1, PUH-2.5NKA

Oil separator

Indoor unite

Indoor heat exchanger

Thermistor

RT2

Distributor

with

strainer

PKH-2FKA O.D.3.2oI.D.1.6-L300 PKH-2.5FKA O.D.3.2oI.D.1.8-L430

Restrictor valve

Capillary tube

Strainer

Refrigerant pipe (option)

15.88mm([5/8") (with heat insulator)

Flexible tube

Flared connection

Refrigerant pipe (option)

9.52mm([3.8") (with heat insulator)

Ball valbe

Accumulator

Ball valve (with service port)

4-way valbe

Strainer

Service port (check)

Compressor

PUH-2NKA O.D.3.2oI.D.1.2-L1250 PUH-2.5NKA O.D3.2oI.D.1.2-L1300

Service port (check)

High pressure control switch

Capillary tube

Refrigerant flow in cooling Refrigerant flow in heating

R.V.coil heating ON OFF

Outdoor unit

Outdoor heat exchanger

Thermistor

Bypass valve

Muffler

Capillary

Restrictor valve

Strainer

PUH-2NKA O.D.4.0oI.D.2.0-L430 PUH-2.5NKA O.D.4.0oI.D.2.4-L1050

tube

Unit : mm

PKH-3FKA2, PKH-3FKA3/ PUH-3NKA1, PUH-3NKA

Refrigerant pipe

Indoor unite

Indoor heat exchanger

Thermistor

RT2

Distributor

with

strainer

Strainer

Restrictor valve

Capillary tube

O.D.4.0oI.D2.0-L500

(option)

15.88mm([5/8") (with heat insulator)

Flexible tube

Flared connection

Refrigerant pipe (option)

9.52mm([3.8") (with heat insulator)

PKH-4FKSA2, PKH-4FKSA3/ PUH-4TKSA

Refrigerant pipe

Strainer

(option)

19.05mm([3/4") (with heat insulator)

Flexible tube

Flared connection

Refrigerant pipe (option)

9.52mm([3.8") (with heat insulator)

Indoor unite

Indoor heat exchanger

Distributor with strainer

Thermistor RT2

Restrictor

valve

Capillary tube

O.D.4.0oI.D.2.0-L400

Ball valbe

Ball valve (with service port)

Ball valbe

Strainer

Service port

Ball valve (with service port)

4-way valbe

Strainer

Service port (check)

Accumulator

4-way valbe

Accumulator

Oil separator

Compressor

High pressure control switch

Service port (check)

Bypass valve

Capillary tube

O.D.3.2oI.D.1.2-L1250

High pressure control switch

Service port

Bypass valve

Capillary tube

O.D.3.2oI.D.1.2-L1250

Restrictor valve

Outdoor unit

Outdoor heat exchanger

Muffler

Restrictor valve

Strainer

Outdoor unit

Outdoor heat exchanger

Muffler

Strainer

O.D.4.0oI.D.2.4-L600

(O.D.3.2oI.D.2.0-L820)o2

Thermistor

Capillary tube

Thermistor

Restrictor valve

Capillary tube

Page 28

OPERATION FLOW-CHART8

START

Power circuit

breaker

Check SW

ON twice

Operation SW

“OFF” timer

“ON” timer

STOP

Set time complete

Set time

complete

YES

PROTECTION DEVICE

SELF HOLD RELEASE

Remote controller

indicator lamp OFF

Trouble STOP

Remote controller

operation display

Operating mode

(COOL)

Operating mode

(DRY)

Operating mode

(HEAT)

Operating mode

(FAN)

Auto COOL/HEAT

operation

COOL operation

DRY operation

HEAT operation

FAN operation

Trouble

PROTECTION DEVICE

SELF HOLD

Remote controller

trouble display

Indoor side

Outdoor side

Fan STOP

Auxiliary heater OFF

Compressor OFF

Fan STOP

Four-way valve OFF

MAIN OPERATION

w1 In addition, the centralized control and remote control can be operated. w2 The modes which indicate the sources of trouble are listed below.

● EO=Signal transmitting/receiving error

● P1=Room temperature thermistor malfunction

● P2=Indoor coil thermistor malfunction

● P4=Drain sensor malfunction

● P5=Drain overflow

● P6=Coil frost/overheat protection

● P7=System error

● P8=Outdoor unit trouble

w3 The CHECK switch will show if an error has occurred in the past. w4 Fan runs on low speed for 1 minute in order to remove overheat air. w5 The 3-minute (6 minutes … heating mode) time-delay functions after compressor stops. w6 FAN or AUTO mode is selected by the indoor dip switch setting. w7 In FAN mode, fan speed and vane operation depend on the remote controller setting. (Compressor is OFF.)

Page 29

COOLING OPERATION

COOL operation

Four-way valve/OFF

Vane setting notch

Initial

COOLING

60 deg downward angle 70 deg downward angle

Downward discharge

Vane horizontal

Vane initial

setting

Vane

Fan speed

LOW

1 hour

airflow

Compressor

thermostat

Allowance

cancel

YES

3-minute

time delay

6-minute

time delay

3-minute

compressor operation

YES

w10

Coil frost

prevention

w11

Cooling area

YES

Allowance

period

6 minute

time delay

Allowance set

YES

Coil frost protection

compressor operation

YES

10-minute

YES

Allowance cancel

Coil frost protection

16-minute

YES

Indoor pipe

temperature is

1°C or lower

Compressor ON

YES

Coil frost

prevention

Compressor OFF

Indoor coil

temperature is

10°C or higher

YES

3-minute

time delay

Coil frost

prevention release

1 min continue

FAN speed

FAN speed LOW 5 min

LOW

elapse

YES

Outdoor unit

trouble

Coil frost protection pipe temperature detection

PKH-2

PKH-2.5/3/4

SW1-5 J1-5

1°C ON provided

-3°C OFF

not provided

w8 When operation stops or changes to cooling or dry mode, the auto vane turns to a horizontal angle. If operation changes

during auto vane SWING, the auto vane will continue to swing.

w9 When operating TEST RUN, the thermostat will be continuously ON. w10After 3 minute compressor operation, if the indoor coil thermistor reads -15°C or below for 3 minutes, the compressor will

stop for 6 minutes.

w11Cooling area : Indoor coil temperature is more than 5 degrees above the room temperature.

Heating area : Indoor coil temperature is more than 5 degrees below the room temperature. FAN area : Indoor coil temperature is within 5 degrees either way of the room temperature.

Page 30

Heat operation

Vane setting notch

Vane initial setting

Defrost release

Outdoor unit trouble

Four-way valve ON

Allowance cancel

Outdoor unit

trouble

FAN SPEED

Very low airflow

Compressor OFF

3 min.restart

prevention

6 min. restart

prevention

Hot adjust start

FAN SPEED very low

Compressor ON

Allowance cancel

FAN STOP

Outdoor unit

trouble

Defrost operation

START

Four-way valve

OFF

Auxiliary heater OFF

Overheat remote

START

Overload protect

Auxiliary heater ON

6-minute restart

prevention

Allowance set

Compressor OFF

FAN SPEED

Low

FAN SPEED

setting notch

Hot adjust

release

Airflow 10% up

FAN setting notch

Auto COOL/HEAT

operation

T1 T0

COOL mode HEAT mode

COOL mode

1[(T0 - 2)

After 15min.

T1[(T0-2)

COOL operation

HEAT operation

1 ](T0 + 2)

HEAT operation

Cool mode

set

YES YES

YES

w15

YES

w11

w10

w16

w17

w11

Initial

HEATING

Defrosting

Hot adjust in process

Compressor ON

Compressor

thermostat ON

Heating

area

Fan area

20 min.elapse

Fan area

Heating area

Fan area

Cooling area

Heating area

Defrost

30 min. elapse

10-minute

compressor

operation

Indoor piping 55°C or lower

Auxiliary heater

Indoor piping

60°C or higher

Auxiliary heater

thermostat ON

Indoor unit

70°C or higher

Allowance

period

Indoor piping

35°C or higher

HOT adjust

6 min. elapse

FAN SPEED

Low 2 min.

elapse

PKH-FK

Type

3-minute

Auxiliary heater

OFF

Indoor coil

thermistor is 60°C

or higher

FAN speed

Low notch

Initial mode

After 15min.

1 ](T0 + 2)

Indoor piping

-15°C or lower

HEATING OPERATION

AUTOMATIC COOLING/HEATING OPERATION

w15 ( i ) Until Low airflow is set while hot adjustment

(ii )While defrosting (FAN STOP) (iii)When thermostat is OFF In the case of( i ), (ii) and (iii) above, airflow is horizontal regardless the VANE setting.

w16 When AUTO operation is started, COOL or HEAT mode is selected automatically. w17 T1 : Room temperature.

To : Set temperature

Page 31

DRY OPERATION

DRY

operation

Four-way valve / OFF

Vane

setting notch

YES

Initial dry

operation

YES

Vane initial setting

w12

Room temperature is

18°C or lower

During

compressor ON

YES

3-minute

compressor

operation

YES

Compressor &

thermostat ON

YES

3-minute

time delay

Compressor &

thermostat

YES

Compressor ON

time completes

YES

10-minute compressor

OFF timer start

Compressor OFF

Fan STOP

w8—9 Refer to page 29. w12 When room temperature is 18°C or below, the compressor cannot operate.

When room temperature rises over 18°C, the compressor starts after a 3-minute time delay.

w13 Compressor ON time is decided by room temperature. Refer to page 38. w14 In dry operation, compressor ON makes the fan speed LOW and compressor OFF stops the fan.

It is not possible to set the fan speed with the remote controller

w14

10-minute

compressor

OFF

YES

Compressor ON

time set

Compressor ON

Fan speed LOW

w13

w14

Page 32

MICROPROCESSOR CONTROL9

FILTER

CHECK MODE

CHECK

TEST RUN

1. OUTLINE OF MICROPROCESSOR CON-

INPUT to remote controller

● OFF-ON switching.

● COOL/DRY-AUTO-HEAT selector switching.

● Thermostat setting.

● TIMER mode selector-switching and Timer

setting.

● HIGH-LOW fan speed switching.

● AUTO Vane selector (AIR DISCHARGE)

switching.

● TEST RUN switching.

● CHECK mode switching.

(Self diagnostic trouble shooting)

Indoor unit

INPUT from indoor unit

Remote controller board

● Processes and transmits orders.

12VDC

Indoor controller board

OUTPUT to remote controller

Remote controller

● LCD indicator

Non-polar, two-wire cable maximum length 500 meters

Signal

● Room temperature thermistor (RT1)

● Pipe temperature thermistor (RT2)

OUTPUT to indoor unit

● Auto vane’s angle setting.

● Emergency stop.

Independent Control of Outdoor Unit

● Compressor protection device working

● Defrosting START-STOP

● Fan speed control.

● Crankcase heater control

ON-OFF.

● Self diagnostic function

● Receives orders from remote controller and

temperature data from indoor unit.

● Processes orders and data.

● Controls indoor and outdoor operation.

● Self diagnostic function.

w System control operation. w Emergency operation. w Set by dip switch on indoor controller board.

● Transmits the power to remote controller.

1 2 3

Polar three-wire cable

Outdoor unit

12VDC

1 2 3

● Compressor and outdoor fan : ONOFF

● Operation mode

OUTPUT to outdoor unit

change :COOLHEAT.

Page 33

Minimum 3 minutes w1

Thermostat

Indoor fan

Auto vane

Compressor

LOW or HIGH

Initially 10˚ degrees

LOW or HIGH

OFF

CLOSE CLOSE

OFF

Operation starts by POWER button ON.

Operation stops by POWER button OFF.

Room temperature becomes equal to set temperature.

Room temperature rises above set temperature.

(Changeable by remote controller setting)

FILTER

CHECK MODE

CHECK

TEST RUN

2. INDOOR UNIT CONTROL

2-1 COOL operation

1 Press POWER ON/OFF button. 2 Press the button to display “

f ”.

3 Press the i TEMP button to set the desired temperature.

NOTE: The set temperature changes 1°C when the or

button is press one time Cooling 19 to 30°C.

w1 Even if the room temperature rises above the set temperature during this period, the compressor will not start until this

period has ended.

(1) Compressor control

1 3-minute time delay

To prevent overload, the compressor will not start within 3 minutes after stop.

2 The compressor runs when room temperature is higher than set temperature.

The compressor stops when room temperature is equal to or lower than the set temperature.

3 The compressor stops in check mode or during protective functions. 4 Coil frost prevention

To prevent indoor coil frost, the compressor will stop when the indoor coil thermistor (RT2) reads 1°C or below after the compressor has been continuously operated for at least 16 minutes or more. When the indoor coil temperature rises to 10°C or above, the compressor will start after a 3-minute time delay. NOTE : By turning OFF the dip switch SW1-5, PKH-2.5/3/4 for J1-5 on indoor controller board, the start temperature of coil

frost prevention changes 1°C to -3°C.

Page 34

5 Coil frost protection

5 minutes

SET

LOW

5 minutes

SET

LOW

OFF

When indoor coil temperature becomes -15°C or below, coil frost protection will proceed as follows.

After the compressor has been continuously operated for 3 minutes or more,and the indoor coil temperature has been

-15°C or below for 3 minutes,the coil frost protection will start.

Compressor stops for 6 minutes, and then restarts. If the start condition is satisfied again during the first 10 minutes of compressor operation, both the indoor and outdoor units stop, displaying a check code of “P8” on the remote controller.

Coil frost protection is released when the start condition is not satisfied again during the allowance, or when the COOL mode stops or changes to another mode.

(2) Indoor fan control

Indoor fan speed LOW/HIGH depends on the remote controller setting. However, if an outdoor unit abnormality is detected, the indoor fan speed will be LOW, regardless of the remote controller setting.

When the outdoor unit abnormality detection is released and the fan speed returns to the set speed, the quiet cycle control will work. (a) Normal control

(i ) Fan speed LOW/HIGH depends on the remote controller setting regardless of the thermostat ON/OFF. (ii) Fan speed will remain on LOW if an abnormality in outdoor unit is detected. (5 minutes)

When the abnormality detection is released, the fan speed returns to the set speed.

NOTE 1 : Fan stops immediately if the unit stops or the check mode is started.

1 Start-up of outdoor unit abnormality detec-

tion.

2 Release of outdoor unit abnormality detec-

tion.

3 Unit stop due to outdoor unit abnormality

with P8 indication.

Page 35

(3) Auto vane control

Auto vane position is set to 10degrees discharge at the start-up of COOL operation. It can then be changed by the remote controller.

(a) Stop mode (fixed operation) (

!) At start-up of COOL operation, the auto vane is set to 10 degrees discharge direction.

(@) Discharge direction can be changed with AIR DISCHARGE UP/DOWN button.

1 Fan speed : LOW

10° 60° 70°

2 Fan speed : HIGH

10° 60° 70°30°

(b) SWING mode (Only PKH-2.5/3/4FK(S)A) (!)The vane motor turns ON when the SWING mode is selected.

The vane motor is continuously ON during SWING mode.

<AUTO RETURN> 1 Fan speed : LOW

10°

60°

AUTO

RETURN

70°

AUTO

RETURN

(SWING)

2 Fan speed : HIGH

10°

When 60 degrees or 70 degrees discharge is selected with the LOW fan speed in COOL operation, “1Hr” will appear below the temperature display. One hour later, the discharge direction returns to 10 degrees automatically and “1Hr” will disappear. If the discharge direction is set to 10 degrees during “1Hr” indication, the time counting for AUTO RETURN is cancelled.

30°

60°

70°

Page 36

<Auto vane drive> (PKH-2FKA3) (a) The auto vane is driven by a 2.5 rpm motor. (b) Discharge direction can be selected between the No.1 and No.2 setting. (Initial setting is No.1)

10°

Discharge direction change

Downward C → Horizontal 4→1 Horizontal → Downward A1→2 Downward A→ Downward B 2→3 Downward B → Downward C 3→4

(d) Discharge direction is based on the horizontal position detected by the vane motor limit switch. When the horizontal

position can not be determined, the vane motor will remain ON until it is determined.

1 If the horizontal position still can not be detected, despite the 10minute detection, the vane motor will turn OFF

Remote controller indication continues.

2 After, if the vane motor receives the “auto vane ON” command again, it will restart detecting the horizontal position.

If the horizontal position still can not be determined, despite the 10-minute detection, the vane motor will turn OFF. (PKH-2.5FKA (PKH-2.5FKA3, PKH-3FKA3, PKH-4FKSA3) (a) The vane is driven by DC12V motor. (b) Air discharge direction is selected depends on the number of pulse were sended. (c) Before start driving the auto vane, detect the standard position first, output the number of pulse to each air discharge. (d) The speed of the auto vane drive for both open and close are settled at 200 pulse/sec. (e) Method of driving the auto vane.

1 Detecting the standard position : Output 1600 pulse to the opening direction. 2 Position setting : Output the number of pulse indicated no below chart to the closing direction.

2, PKH-3FKA2, PKH-4FKSA2)

30°

60°

50Hz

Rise 2.1

0.65

6.7

0.65

70°

Unit : sec.

60Hz

Rise 1.75

0.55

5.55

0.55

The number of pulse outputed after detecting the standard position

Horizontal Downward A Downward B

Downward C 113

(4) Detecting abnormalities in the outdoor unit

After the compressor has been continuously operated for 3 minutes, if the difference between the indoor coil temperature and room temperature is out of RANGE C for 1 minute, the indoor fan speed will turn to LOW. Five minutes later, if the difference is still out of RANGE C,the outdoor unit is functioning abnormally. Thus, the compressor stops and check code “P8” appears on remote controller. RANGE A: Indoor coil temperature is more than 5 degrees above room temperature. RANGE B : Indoor coil temperature is within 5 degrees either way of room temperature. RANGE C : Indoor coil temperature is more than 5 degrees below room temperature.

Indoor coil temperature minus room temperature

(degree)

-5

RANGE A

RANGE B

RANGE C

1600

680 578 283

Page 37

Minimum 3 minutes w1

Thermostat

Indoor fan

Auto vane

Compressor

w Refer to (2)

Initially 10˚ degrees discharge

(

Changeable by remote controller setting

)

OFF

Operation starts by POWER button ON.

Operation stops by POWER button OFF.

Room temperature becomes equal to set temperature.

Room temperature rises above set temperature.

FILTER

CHECK MODE

CHECK

TEST RUN

2-2 DRY operation

1 Press POWER ON/OFF button. 2 Press the button to display “ e ”. 3 Press the i TEMP button to set the desired temperature.

NOTE: The set temperature changes 1°C when the or

button is press one time Cooling 19 to 30°C.

w1 Even if the room temperature rise above the set temperature during this period, the compressor will not start until this

period has ended.

Page 38

(1) Compressor control

13-minute time delay

To prevent overload, the compressor will not start within 3 minutes after stop.

2The compressor runs when the room temperature is higher than the set temperature.The compressor stops when the

room temperature is equal to or lower than the set temperature.

3The compressor stops in check mode or during protective functions. 4The compressor will not start when the room temperature is below 18°C.

The compressor starts intermittent operation when the power is turned ON with room temperature above 18°C. The compressor ON/OFF time depends on the thermostat ON/OFF and the following room temperatures. After 3-minute compressor operation,

● If the room temperature thermistor reads above 28°C with thermostat ON, the compressor will operate for 6 more minutes and then stop for 3 minutes.

● If the room temperature thermistor reads 26°C ~ 28°C with thermostat ON, the compressor will operate for 4 more minutes and then stop for 3 minutes.

● If the room temperature thermistor reads 24°C ~ 26°C with thermostat ON, the compressor will operate for 2 more minutes and then stop for 3 minutes.

● If the room temperature thermistor reads below 24°C with thermostat ON, the compressor will stop for 3 minutes.

● If the thermostat is OFF regardless of room temperature, the compressor will stop for 10 minutes.

5Coil frost protection

Coil frost protection in DRY operation is the same as in COOL operation.

6Coil frost prevention

Coil frost prevention does not operate in DRY operation.

(2) Indoor fan control

<PKH-2.5/3/4> The indoor fan runs on LOW speed during compressor operation. The fan speed cannot be changed with the remote con-

troller. Also, the indoor fan does not run during compressor OFF. <PKH-2> (a)During compressor OFF

● When the indoor coil temperature is 6°C or above, the indoor fan will stop.

● When the indoor coil temperature is below 6°C, the indoor fan will run in DRY mode.

(b)During compressor ON

● The indoor fan runs on EXTRA-LOW speed for the first 1 minute after the compressor is turned on.

● After, the indoor fan runs in DRY mode.

The fan notch is controlled by the indoor coil temperature every 30 seconds.

Indoor coil temperature

Below -10°C

-10 to 0°C

Above 0°C

During compressor OFF, when the indoor coil temperature becomes 6°C or above, the indoor fan turns OFF immediately.

(3) Auto vane controls

Same as in COOL operation

(4) Detecting abnormalities in the outdoor unit

An abnormality in the outdoor unit can not be detected in DRY operation.

Fan operation LOW speed EXTRA-LOW speed Dry mode

Page 39

2-3 HEAT operation

FILTER

CHECK MODE

CHECK

TEST RUN

1 Press POWER ON/OFF button. 2 Press the button to display “ g ”. 3 Press the i TEMP button to set the desired temperature.

NOTE: The set temperature changes 1°C when the or

button is press one time Cooling 17 to 28°C.

[ DEFROST ]

The [ DEFROST ] symbol is only displayed during the defrost operation.

[ STANDBY ]

The [ STANDBY ] symbol is displayed from the time the heating operation starts until the heated air begins to blow.

Thermostat

Indoor fan

Auto vane

Compressor

Power ON lamp

STAND BY lamp

ON OFF

OFF

Operation starts by POWER button ON.

horizontal

From POWER ON until

warm begins to blow

Room temperature becomes equal to set temperature.

LOW

Depends on remote controller setting

Minimum 3 minutes w2

Room temperature falls below set temperature.

Extra LOW w1Extra LOW w1

LOW or HIGHLOW or HIGH

horizontal close

Depends on remote controller setting

Operation stops by POWER button OFF.

w1 Changeable by indoor dipswitch SW1-7 and SW1-8.

w2 Even if the room temperature rise above the set temperature during this period, the compressor will not start until this

period has ended.

Page 40

(1) Compressor control

13-minute time delay.

To prevent overload, the compressor will not start within 3, minutes after stop. 2The compressor runs when the room temperature is lower than the set temperature.The compressor stops when the

room temperature is equal to or higher than the set temperature.

3The compressor stops in check mode or during protective functions. 4Overheat protection

When the indoor coil thermistor reads 70°C or above, the overheat protection will start.

The compressor stops for 6 minutes, and then restarts. If the start condition is satisfied again within 10 minutes of compressor operation, both the indoor and outdoor units stop, displaying a check code of “P6” on the remote controller.

Overheat protection is terminated when the start condition is not satisfied again during the allowance (10-minute compressor operation), when operation mode changes to other mode, or when thermostat turns OFF.

(2) Indoor fan control

(a) Normal control

( i )The indoor fan runs on EXTRA-LOW speed during the thermostat OFF.

EXTRA-LOW speed can be changed to LOW or HIGH speed by setting the dip switch SW1-7 and SW1-8,(PKH-

2.5/3/4 for J1-7, J1-8) If the indoor coil temperature becomes more than 5 degrees below the room temperature during the thermostat OFF, the indoor fan will stop. After, when the indoor coil temperature becomes within 5 degrees of room temperature, the indoor fan will run on EXTRA-LOW speed.

(ii)Hot adjustment

Hot adjustment is a warm-up for HEAT operation <Start conditions> The hot adjustment works under any of the following conditions.

● HEAT operation starts.

● Defrosting ends.

● Thermostat turns ON

<Hot adjustment> Initially, the indoor fan runs on EXTRA-LOW speed. When 5 minutes have passed or the indoor coil temperature exceeds 35°C, the fan speed changes to LOW. Two minutes later, the hot adjustment ends. Then, the fan speed depends on the remote controller setting.

(iii)The indoor fan stops when the indoor coil temperature is within 5 degrees either way of room temperature. (iv)To eliminate the remaining heat, the indoor fan runs for the first 1 minute after the booster heater is turned OFF.

Page 41

(3) Auto vane control

(a) STOP mode (fixed operation)

(!) The discharge direction at the start-up of HEAT operation is the same as that of the previous operation. (@) The discharge direction can be changed by the remote controller setting.

10° 30° 60° 70°

In the following cases, discharge direction becomes 10° regardless of the remote controller setting.

1 During the hot adjustment with fan speed at EXTRA-LOW 2 During defrosting with indoor fan OFF 3 During the thermostat OFF

(b) SWING mode (Only for PKH-2.5FKA

(!) The vane motor turns ON when the SWING mode is selected.

The vane motor is continuously ON during SWING mode.

(@) In the following cases, the discharge direction is 10° regardless of the remote controller setting.

1 During the hot adjustment with fan speed at EXTRA-LOW 2 During defrosting with indoor fan OFF 3 During thermostat OFF

(4) Detecting abnormalities in the outdoor unit

When the outdoor unit is determined to be abnormal by the following causes, the compressor will stop and the check code “ P8 ” will appear on the remote controller display.

1 During compressor ON after hot adjustment

1 If the difference between the indoor coil temperature and room temperature is in the RANGE B, the indoor fan will

stop. 2 Within 20 minutes after entering RANGE B (except for the first 10 seconds), a) If the temperature difference enters RANGE A, the hot adjustment starts. b) If the temperature difference is still in RANGE B, the outdoor unit is deemed abnormal. c) If the temperature difference enters RANGE C, defrosting starts.

Within 30 minutes after entering RANGE C,

●If the temperature difference does not return to RANGE B,the outdoor unit is deemed abnormal.

●If the temperature difference returns to RANGE B, the next 20 minutes is an allowance period. If the difference enter

RANGE Aduring the allowance, defrosting ends and the hot adjustment starts. If the difference does not enter RANGE Aduring the allowance, the outdoor unit is deemed abnormal.

2 During compressor ON in hot adjustment

After 30 minutes of defrosting in hot adjustment, if the temperature difference is still in RANGE C, the outdoor unit is determined to be abnormal.

3 During compressor OFF

After 20 minutes of thermostat OFF, if the indoor coil thermistor reads -25°C or below, the outdoor unit is determined to be abnormal.

(5) Indoor coil thermistor abnormality detection

An abnormality can be detected during compressor ON, except for the following.

●For the first 30 minutes after the temperature difference between the indoor coil temperature and room temperature enters the RANGE C.

●When the temperature difference enters the RANGE C until it moves to the RANGE B.

(6) Defrosting operation

After the outdoor unit starts the defrosting operation, when the temperature difference between the indoor coil temperature and room temperature gets out of RANGE Aand into RANGE B, the indoor unit starts the defrosting mode. After the outdoor unit stops the defrosting operation, when the temperature difference returns to the RANGE A, the indoor unit stops the defrosting mode. While the indoor unit is in the defrosting mode, the indoor fan stop.

2, PKH-2.5FKA3, PKH-3FKA2, PKH-3FKA3, PKH-4FKSA2, PKH-4FKSA3 )

(SWING)

w1 RANGE A: Indoor coil temperature is more than 5 degrees above room temperature.

RANGE B : Indoor coil temperature is within 5 degrees either way of room temperature. RANGE C : Indoor coil temperature is more than 5 below room temperature.

Indoor coil temperature minus room temperature

(degree)

-5

RANGE A

RANGE B

RANGE C

Page 42

2-4 AUTO operation (Automatic COOL/HEAT change over operation)

Mode change (HEAT COOL)

When room temperature becomes2degrees above the set temperature,the operation mode can not be changed for 15 minutes.

(degree)

To+2

To:Set temperature (19 28 )

To+1 To To-1

To-2

Compressor

Start

HEAT mode HEAT mode

Mode change

15 minutes

Minimum 3 minutes

COOL mode

(COOL HEAT)

ON OFF

-9 0 10 20 30 40 52˚C

21˚C

(PUH-•VK,YK type 46 ˚C)

-8.5˚C

Cooling range

(Outside air temperature)

Heating range

-5˚C

FILTER

CHECK MODE

CHECK

TEST RUN

1 Press POWER ON/OFF button. 2 Press the button to display “ ”. 3 Press the i TEMP button to set the desired temperature.

NOTE: The set temperature changes 1°C when the or

button is press one time Cooling 19 to 28°C.

●“AUTOMATIC” works to change by itself the operation mode either to cooling or heating according to the room temperature.

(1) Initial mode

1 When AUTO operation starts after unit OFF.

● If the room temperature is higher than the set temperature, operation starts in COOL mode.

● If the room temperature is equal to or lower than the set temperature, operation starts HEAT mode.

2 When AUTO operation starts after COOLor HEAT operation, the previous mode continues.

(2) Mode change

1 HEAT mode changes to cool mode when 15 minutes have passed since the room temperature became 2 degrees

above the set temperature.

2 COOL mode changes to HEAT mode when 15 minutes have passed since the room temperature became 2 degrees

(3) Temperature range

AUTO operation is available under the outside air temperatures as follows.

Page 43

10°

30°

60°

70°

Changes by pressing the button.

SWING

2-5 Auto vane control

FILTER

CHECK MODE

CHECK

TEST RUN

To change the air flow direction, press button.

Available in COOL operation with fan speed on HIGH or in HEAT operation. Unavailable in DRY operation. If fan speed changes from LOW to HIGH during 30° downward discharge in COOL mode, the direction automatically changes to 10°.

(1) COOL/DRY operation

At the start-up of COOL or DRY operation, the discharge direction in automatically set to 10°. After, it can be changed to

another direction with button on the remote controller.

When 60° or 70° discharge is set with fan speed on LOW, “1Hr” appears below the room temperature display. One hour

later the direction changes to 10° degrees, automatically and “1Hr” disappears.

(2) HEAT operation

At the start-up of HEAT operation, discharge direction depends on the setting of the last operation. After, it can be changed to another direction with button. The discharge direction shifts to 10° regardless of the remote

controller settings under any of the following conditions.

● Thermostat OFF

● Defrosting

● Indoor fan speed EXTRA-LOW in hot adjustment

Page 44

2-6 TIMER operation

OFF

FILTER

CHECK MODE

CHECK

TEST RUN

FILTER

CHECK MODE

CHECK

TEST RUN

TEST RUN button

TEST RUN

Indoor coil temperature code

Display

AUTO STOP ·········The air conditioner stops after the set time lapses. AUTO START ········The air conditioner starts after the set time lapses. AUTO OFF ············Timer is not active.

1. Press POWER ON/OFF button.

2. Press w button to select AUTO STOP or AUTO START.

3. Press q button to set desired time. Time setting is in 1 hour units for up to 24 hours. Each time HOURS button is pressed, set time increases by 1 hour. When HOURS button is pressed and held, the set time increases by 1 hour every 0.5 seconds.

4. To cancel the timer operation, press POWER ON/OFF button.

This setting will stop the air conditioner in 8 hours. With the lapse of time, time display changes in 1 hour units, showing remaining time.

2-7 Test run <Before test run>

● After installing, wiring, and piping the indoor and outdoor units, check for refrigerant leakage, looseness in power supply or control wiring, and mistaken polarity.

● Use a 500-volt megger to check the resistance between the power supply terminal block and ground to make sure that it is at least 1.0MΩ.

Attention: Do not use the air conditioner if resistance is less than 1.0MΩ.

Remote controller

Turn on main switch. 12 hours before proceeding to step 2

to allow for crankcase heater operation. Push the TEST RUN button twice and indication of TEST

RUN will be shown on the liquid crystal display. Press the button to display f , COOL/DRY

(or HEAT ) to confirm that cool (or warm ) air is blown out. (AT heating operation, there may be a short delay before

warm air begins to be out.)

Push button LOW/HIGH to check that the fan speed changes properly.

Check the operation of outdoor unit fans. This unit controls the rotation speed and performance capacity of fans. In some cases, it may rotate at low speed as the condition of outside air requires and the speed will be kept unless the performance has become deficient.

Therefore, when the condition of outside air demands, there may be such cases as the fan stops or rotates reversely.

The above figure shows the state of TEST RUN at cooling operation.

Please note that these symptoms are not malfunction. After the check is finished leave the test run mode, push

the power ON/OFF button.

It can also be stopped by pushing the timer MODE button.

●When a TEST RUN is started, the timer shall be set to hours. The unit will automatically turn off after 2 hours.

Page 45

(1) Indoor coil temperature code

Code

-40~1: 9

~45:

~10:

~50:

~15:

~55:

~20:

~60:

~25:

~70:

~30:

~90:

~35:

~40:

Thermistor

abnormality

Indoor coil

temperature

Indoor coil

temperature

1 ON

1.2 ON

1-2 OFF

During the test run, the indoor coil temperature code from 1 to 15 is displayed on the remote controller instead of room temperature. The code should fall with the lapse of time in normal COOL operation, and should rise in normal HEAT

operation.

(2) Trouble during test run

● If the unit malfunctions during the test run, refer to section 10 in this manual entitled “TROUBLESHOOTING.”

● When the optional program timer is connected to the conditioner, refer to its operating instructions.

2-8 Emergency operation

When the remote controller or microprocessor malfunctions but all other parts are normal, emergency operation is started

by setting the dip switch SW3 on the indoor controller board.

1. Make sure the compressor and the indoor fan are operating normally.

2. Locate the defect with the self-diagnostic function. When the self-diagnostic function indicates “protective function is working”, release the protective function before starting the emergency operation.

CAUTION: When the self-diagnostic function indicates a check code of “P5” (drain pump malfunction), DO NOT start the

emergency operation because the drain may overflow.

1. For emergency cooling, set the dip switch SW3-1 to ON and SW3-2 to OFF. For emergency heating, set the dip switch SW3-1,2 to ON.

Emergency cooling

Emergency heating

Normal operation

Microprocessor board

2. Turn ON the outdoor unit breaker and then ON the indoor unit breaker.

Emergency operation will now start.

3. During emergency operation, the indoor fan operates on high speed, but the swing louvers and the auto vanes do not operate.

4. To stop emergency operation, turn OFF the indoor unit breaker. NOTE: The remote controller POWER ON/OFF button can not start/stop emergency operations. CAUTION: Do not use emergency cooling for more than 10 hours, as the indoor coil may freeze.

Page 46

2-9 Interlock with ventilation system (LOSSNAY)

Relay box

Relay box (PZ-12RB-E)

LOSSNAY

LOSSNAY control switch (PZ-05SLB

2-E)

LOSSNAY control switch (PZ-05SLB2-E)

Mr. SLIM

Remote controller

Remote display adapter (PAC-SA88HA-E)

Power supply

Relay box

LOSSNAY

A B L N HIGH N

Terminal block

Mr.SLIM CN51 12V DC

Power supply 220 240V AC

Circuit breaker

WHT

DAMPER

RED

LOW

HIGH

ORN

RED

(PZ-12RB-E)

Mr. SLIM/LOSSNAY interlock operation is available by using the optional parts listed below.

(1) System organization

(2) LOSSNAY models connectable to Mr. SLIM are:LGH-15RS-E LGH-50RS-E

LGH-25RS-E LGH-80RS-E LGH-35RS-E LGH-100RS-E

(3) Required parts are:

● Relay box (PZ-12RB-E)…Contact capacity 10A

● Remote display adapter (PAC-SA88HA-E)…An optional part for Mr. SLIM

● LOSSNAY control switch (PZ-05SLB

…

2-E)

For LOSSNAY individual operation

(4) Operation

1LOSSNAY turns ON/OFF according to Mr. SLIM ON/OFF 2While Mr. SLIM is OFF, LOSSNAY individual operation is available by using the LOSSNAY control switch.

When Mr. SLIM turns OFF with the LOSSNAY control switch at ON, LOSSNAY will continue to operate.

(5) Wiring.

1When the LOSSNAY control switch is used

Remote controller

Insulation is needed

10m

Power supply 50Hz 220 240V

Connecting wire

0.13mm or over Connecting wire

solid wire,

1.6 or 2.0 (field supplied)

Circuit breaker (field supplied)

HIGH

LOSSNAY control switch (PZ-05SLB

Indoor controller

N L

LOW

DAMPER

2-E)

Mr. SLIM

board

Connector

CN51

ORN

RED

BRN

GRN

YLW

Junction box (field supplied)

Power supply for Mr. SLIM 220 240V AC

A B

RED

L N

HIGH

Terminal block

ORN

LOW

RED

HIGH

WHT

DAMPER

ORN

DAMPER

Relay box

(PZ-12RB-E)

YLW ORN

WHT RED

WHT

LOSSNAY

RED

WHT

6 2

2When the LOSSNAY control switch is not used:

NOTE: For further information, refer to the

LOSSNAY technical & service manual.

Page 47

2-10 Dip switch and jumper connector functions

Each figure shows the initial factory setting.

1 On remote controller board

(1) SW17(Address selector)

1 2 3 4 5 6 7 8 ON OFF

SW17-1 — 6) For address setting SW17-7) When two remote controllers are used, this switch sets the controller function.

SW17-8) Switch for system back-up

(2) SW18 (Function selector)

ON OFF

SW18-1) Switch for timer

SW18-2) Switch for filter sign

SW18-3) Switch for filter sign time setting

SW18-4) Not yet used.

2 On indoor controller board

For PKH-2FKA

(1) SW1 (Mode selector)

ON OFF

SW1-1) Switch that changes between FAN mode and AUTO mode

SW1-2) Not for use SW1-3) Switch for auto vanes

SW1-4) Switch for drain pump

SW1-5) Switch to change the temperature to start coil frost prevention

SW1-6) Switch for set temperature adjustment in HEAT mode

SW1-7) Switch for fan speed during thermostat OFF in HEAT operation

SW1-8) Switch for fan speed during thermostat OFF in HEAT operation.

SW1-9) Switch for detecting abnormalities in the outdoor unit abnormality detection

SW1-10) Switch for auto restart function

OFF: The remote controller is set as a main controller. ON : The remote controller is set as a sub controller.

OFF: Without back-up ON : With back-up

1 2 3 4

OFF: single day ON : timer every day

OFF: filter sign absent ON : filter sign present

OFF: 100 Hr ON : 2500 Hr

3 only

1 2 3 4 5 6 7 8 9

OFF: Fan mode for models without heat pump ON : AUTO mode for models with heat pump

OFF: Unit without auto vanes ON : Unit with auto vanes

OFF: The drain pump works in only COOL operation. ON : The drain pump works in both COOL and HEAT operation

OFF: -3°C(For previous special models) ON : 1°C(For all current models)

During HEAT operation, warm air collects near the ceiling. When the indoor unit is installed near the ceiling, the temperature read by room temperature thermistor differs from the actual living-space temperature by about 4 degrees. Therefore, the room temperature read by room temperature thermistor must be lowered by 4 degrees. OFF: 4-degree adjustment ON : No adjustment

OFF: EXTRA LOW ON : LOW

OFF: EXTRA LOW or LOW (set with SW1-6) ON : LOW or HIGH (set with remote controller)

OFF: When an abnormality occurs, it is detected. ON : Even if an abnormality occurs, it can not be detected.SW

OFF: This function does not work ON : This function works.

Page 48

(2) SW2 (Address selector)

1 2 3 4 5 6

OFF

Used in setting the unit-address for group control. For further information, refer to page 55.

(3) SW3 (Emergency operation switch)

Normal operation

For emergency cooling

For emergency heating

1 2

ON OFF

1 2

ON OFF

(4) SW5 (Model selector)

1 2 3 4

ON OFF

SW5-1) Power supply

ON :230V/240V OFF:220V

)(

SW5-2) OFF:For models with heat pump

ON :For models without heat pump

SW5-3) Not for use

SW5-4) This switch is unavailable Keep this switch at OFF.

(5) SW6 (Model selector)

ON OFF

1 2 3 4

SW6-1 OFF ON(Twin NO.1) ON(Triple NO.1)

Single control Twin control Triple control

SW6-2 OFF ON(Twin NO.2) ON(Triple NO.2) SW6-3 OFF OFF ON(Triple NO.3) SW6-4 OFF OFF ON

1 2

(6) SW7 (Model selector)

Switch to set the output of phase-controlled indoor fan motor. Address setting is available at any time/ The initial factory setting by is based on each capacity.

Service Ref.

PKH-2FKA

1 2 3

SW7

ON OFF

3. On indoor controller board

For PKH-2.5FKA

, PKH-2.5FKA3, PKH-3FKA2, PKH-3FKA3, PKH-4FKSA2, PKH-4FKSA

(1) J1 (Mode selector)

4 5 6 7 8 9

Page 49

J1-4) Switch for drain pump

J1-5) Switch to change the temperature to start coil frost prevention

J1-6) Switch for set temperature adjustment in HEAT mode

J1-7) Switch for fan speed during thermostat OFF in HEAT operation

J1-8) Switch for fan speed during thermostat OFF in HEAT operation.

J1-9) Switch for detecting abnormalities in the outdoor unit abnormality detection.

J1-10) Switch for auto restart function

(2) SW2 (Address selector)

ON OFF

(3) SW3 (Emergency operation switch)

Normal operation For emergency cooling For emergency heating

ON OFF

(4) J5 (Model selector)

Provided : The drain pump works in only COOL operation Not provided: The drain pump works in both COOL and HEAT operation

Provided : 1°C (For all current models) Not provided: -3°C (For previous special models)

Provided : EXTRA LOW Not provided: LOW

Provided : EXTRA LOW or LOW (set with J1-7) Not provided: Low or High (set with remote controller)

Provided : When an abnormality occurs, it is detected. Not provided: Even if an abnormality occurs, it can not be detected.

Provided : This function does not work Not provided: This function works.

1 2 3 4 5 6

1 2

Used in setting the unit-address for group control. For further information, refer to page 57.

1 2 ON OFF

2 4

J5-2) Original :For models with heat pump. J5-4) Do not cut this jumper wire for PKH-2.5FKA

(5) SW7(Model selector)•For PKH-FKA

ON OFF

SW7-1) OFF:PKH-2.5/3 SW7-2) POWER SUPPLY SW7-3

SW7-4

(6) J9 Do not cut this jumper wire

2-11 INDOOR FAN CONTROL

Indoor fan relay output. (a) During fan ON

(b) During fan OFF

Cut :For models without heat pump. If cut, it causes unit malfunction.

1 2 3 4

The indoor fan relay turns ON. One second later, the phase control will start. The phase control turns OFF. One second later, the indoor fan relay will turn OFF.

PKH-2.5/3FKA PKH-4FKA

ON :PKH-4

)

Not for use

If cut, it causes unit malfunction.

, PKH-FKA3, PKH-FKSA2, PKH-FKSA3.

ON OFF

OFF: 220V ON : 240V

)(

1 2 3 4

, PKH-2.5FKA3, PKH-3FKA2, PKH-3FKA3, PKH-4FKSA2, PKH-4FKSA3.

Page 50

3. OUTDOOR UNIT CONTROL

10 minutes 1

Thermostat

Outdoor fan

4-way valve (cool)

4-way valve (HEAT)

Bypass valve

Compressor

Crankcase heater (with jumper wire J3)

Crankcase heater (without jumper wire J3)

OFF

ON OFF

60 minutes 60 minutes 60 minutes 60 minutes 60 minutes

3 minutes

10 minutes

3 minutes

Repeats 60-minute ON/OFF

60 minutes

Operation starts by POWER button ON.

Operation stops by POWER button OFF.

Room temperature becomes equal to set temperature.

Room temperature becomes different from set temperature.

3-1 Outdoor fan control

The rotational frequency of outdoor fan is phase-controlled according to the outdoor coil temperature. This control allows the cooling operation even with the low outside-air temperature and the heating operation even with the high outside-air temperature.

3-2 Outdoor unit control

The outdoor unit turns ON/OFF the cooling/heating operation according to orders given from the indoor unit.

3-3 Protective functions

1 If an reversed-phase, an open phase, or an indoor controller abnormality is detected, the outdoor unit will stop operation

and the check mode will start. (For the check mode details, see page 56.)

2 If a protective function works, the compressor will stop running. Three minutes later, the compressor will restart. If the pro-

tective function works again, the compressor will stop running and the check mode will start.

3 The protective function is memorized. 4 The memory is cleared when the POWER ON/OFF button on the remote controller is turned OFF. However, the check

mode display continues until the outdoor unit receives the “operation ON” command from the indoor unit.

3-4 COOL/HEAT operation time chart

w1 If compressor restarts within 10 minutes, 4-way valve remains ON.

Page 51

Outdoor fan

Compressor

4-way valve

Bypass valve

Auto vane

Indoor fan

10 degrees

(Remote controller still displays set direction.)

Outdoor unit

Indoor unit

Set direction

OFF

ON OFF

OFF

ON OFF

Set direction

Defrosting starts.

Defrosting stops.

3-5 Defrosting in HEAT mode <Defrosting time chart>

(1) Start conditions

A. When all of the following conditions are satisfied, defrosting will start. However, when the bypass valve turns OFF,

defrosting starts 10 minutes later.

(a) More than seven minutes have passed since the compressor start-up. (b) The outdoor coil thermistor reads -5°C or below. (c) The outdoor fan motor output step is 100% (d) Total time of compressor operation exceeds 30 minutes, and the outdoor coil temperature has fallen by 8 degrees or

more in comparison with that of 10 minutes after the compressor start-up.

NOTE: The outdoor coil temperature of 10 minutes after the compressor start-up is memorized until the defrosting

B. When all of the following conditions are satisfied, defrosting will start.

(a) ~ (c) The same as above (a) ~ (c) in item A (d) Total time of compressor operation exceeds “defrost interval”.

Further information on the defrost interval is described in (3).

C. After the total time of compressor operation exceeds the defrost interval, the thermostat repeats ON/OFF 3 times.

Two minutes after the fourth “ON” of the thermostat, if the outdoor coil thermistor reads -5°C or below and the fan output is 100%, defrosting will start.

NOTE: The count of the thermostat ON/OFF is cleared by the compressor-OFF command or defrosting start-up.

(2) During defrosting

● Even if the thermostat turns OFF, defrosting continues.

● The 4-way valve, bypass valve, outdoor fan, and indoor fan are OFF.

operation has ended.

Page 52

(3) Defrost interval

The defrost interval time is determined as follows.

● Initial defrost interval is 50 minutes.

● The defrost interval after defrosting depends on the preceding defrosting time as shown below.

Defrosting operation time Next defrost interval 3 minutes or below 120 minutes 3 to 7 minutes 80 minutes 7 to 10 minutes 60 minutes 10 to 15 minutes 40 minutes 15 minutes (Maximum) 30 minutes

NOTE1:If the unit stops during defrosting , the next defrost interval will be 50 minutes. NOTE2:If a protection function works for the first time during defrosting, the compressor will stop.

After a 3-minute time delay, defrosting will restart. In this case, a 3-minute time delay is included with the defrosting time. If the protection function works for the second time, the unit stops operation and displays the check code. The next defrost interval will be 30 minutes.

NOTE3:When the defrosting has ended, the total time of the compressor operation is cleared.

(4) Termination conditions

Defrosting finishes when any of the following conditions are satisfied.

1Defrosting has continued for 15 minutes. 2Outdoor coil thermistor reads 22°C or above for the first 75 seconds after defrosting start-up. 3Outdoor coil thermistor reads 8°C or above after the 75-second defrosting. 4Power ON/OFF button is turned OFF during defrosting.

3-6 Actuators (1) Bypass valve control

<Cooling mode> 1When the unit stops due to the coil frost prevention, the bypass valve turns ON. When one hour has passed since the

compressor stopped, the bypass valve returns to OFF.

2When the compressor operates with the bypass valve at ON for more than 30 minutes, the bypass valve turns OFF. 3When the compressor stops with the bypass valve at OFF, the bypass valve turns ON and remains ON for three min-

utes.

<Heating mode> 1When the unit starts for the first time after the circuit breaker has been turned ON, or when it starts after the compressor

OFF of 30 minutes or more, if the outdoor coil thermistor reads 12°C or more, the bypass valve turns ON.

2When the high pressure switch (63H1) works, the bypass valve turns ON. 3When the bypass has been ON for 30 minutes:

● If the high pressure switch has already returned, the bypass valve turns to OFF.

● If not, the fan output step keeps 70 for three minutes. Meanwhile, if the high pressure switch returns, the bypass valve

turns OFF. Otherwise the normal fan control starts.

4When the operation mode changes or stops, the bypass valve turns ON and remains ON for three minutes. <Defrosting operation>

1The bypass valve is OFF.

(2) Crankcase heater control

1With jumper wire J3

The crankcase heater is ON from when the power is turned ON until the compressor starts, and then turns ON one hour

after the compressor stops.

2Without jumper wire J3

The crankcase heater is ON from when the power is turned ON until the compressor starts, and repeats 1-hour ON and

1-hour OFF.

Page 53

3-7 Service functions (1) Compulsory defrosting

1When all of the following conditions are satisfied, pressing SW2 starts the compulsory defrosting.

● During HEAT mode

● The compressor is ON.

● The outdoor coil temperature is being displayed by LED. (Outdoor controller board dip switch SW3-1 : OFF, SW3-2 :

ON)

● The outdoor coil thermistor reads 8°C or below.

2The operation state and the termination conditions of the compulsory defrosting are the same as those of the normal

defrosting. As an exception, the defrost interval after the defrosting completion is 50 minutes.

(2) Fixed fan-output

While the compressor is operating (except during defrosting) and the fan output step is indicated by LED, pressing SW2 fixes the fan output. The fixed fan-output can be released when any of the following conditions are satisfied.

1SW2 is pressed again. 2SW3 setting is changed. 3The compressor stops. 4Defrosting operation starts.

(3) Function of switches on the outdoor controller board

SW1: Clears the check code memory (push-button switch) SW2: Switches the output state indication and the check code display (push-button switch) SW3-1,2: Switches the output state indication items (dip switch) For further information, refer to page 57.

(4) 100% fan output

Fan output is fixed to 100% by shorting the connector CN22. However, the fan stops during compressor OFF or defrosting. Open-circuit of CN22 restarts the normal fan control.

(5) Time shortening

Short circuit of the connector CN21 shortens the time as follows

1Fan control period: 30 seconds → 3 seconds 2Three-minutes time delay function : 3 minutes → 3 seconds 3Max. time of defrosting : 15 minutes → 15 seconds 4Defrost interval : 30 ~ 120 minutes → 3 ~ 12 seconds 5Compressor ON/OFF time for bypass valve ON/OFF : 30 minutes → 3 seconds 6Compressor ON time to start other functions : x minutes → x seconds 7Crankcase heater operation : 1 hour → 6 seconds

Page 54

TROUBLESHOOTING

1. TROUBLE IN TEST RUN

Symptom Cause Check points

The display “CENTRALLY CONTROLLED” on remote controller does not disappear.

When remote controller POWER button is turned ON, the check code “EO”appears.

1) Wrong address setting of remote controller/indoor controller board.

2) Timer adapter is connected to the remote controller.

3) Signal transmission error between indoor unit and remote controller.

1) Signal transmission error between indoor unit and remote controller

1) Check the address setting of remote controller and indoor controller.

2) Make sure the timer adapter is used correctly.

3) 1 Turn another remote controller’s DIP SW177 ON to make it sub controller. 2 Connect the sub controller to the unit, and

turn circuit breaker ON.

● If the display “centrally controlled” disap-

pears, replace the original remote controller.

● If the display remains the same, replace the

indoor controller board.

1) 1 Connect a sub remote controller. 2 Turn circuit breaker ON.

If the display “centrally controlled” remains, replace the indoor controller board.

3 If the display disappears, turn the remote

controller POWER button ON and check as follows.

Remote controller

Operating Display

No Display

Sub remote controller

EO Display Operating Display

EO Display

Operating Display

Malfunction

Malfunction of indoor Unit

Malfunction of Remote controller

Malfunction of indoor Unit and Remote Controller

Malfunction of Remote controller

When remote controller POWER button is turned ON, operating display appears, but disappears soon.

Despite turning POWER button ON, the remote controller display does not appear.

1) Short circuit of indoor/outdoor connecting wire

2) Short circuit of transmission wire.

3) Short circuit of drain sensor heater circuit.

4) Wrong operation of remote controller due to noise wave emitted by other appliances.

1) Damaged remote controller.

2) Short circuit of transmission wire.

3) Bad contact of indoor CN40.

4) CN40 is attached to a sub unit.

5) Damaged transformer.

6) Bad contact of CN4T.

7) Blown fuse.

8) Circuit breaker OFF.

1), 2) Check the wire

3) Measure the resistance of the drain sensor connector CN50 1 ~ 3. Normal resistance should be 82Ω.

4) Turn the circuit breaker OFF, and then turn ON.

If the remote controller remains abnormal, despite the above measures, replace the indoor controller board.

1) Measure the voltage between terminals of remote controller. If no voltage, remove the terminals and measure the voltage between wires. If the voltage is between 6VDC and 12V, replace the remote controller.

2) ~ 8) Check each point.

If it is not defective, replace the indoor controller board.

Page 55

2. SELF DIAGNOSTIC FUNCTION WITH REMOTE CONTROLLER

2-1 When malfunction occurs during operation

When a malfunction occurs, the indoor and outdoor units stop and the malfunction is displayed on the LCD of the remote

controller. (1) ON the set temperature display part, “CHECK” appears, and the unit

address and the check code are displayed alternately at one-second intervals. (Check mode)

Example

CHECK mode

Check

code

(2) When one remote controller controls several units in the group control,

the LCD shows the unit address and check code of the first malfunctioning unit.

(3) To cancel the check mode, press the ON/OFF button. In remote

ON/OFF control, press the remote ON/OFF switch. In centralized control, turn OFF the ON/OFF button of centralized controller.

NOTE: The latest check code is memorized, even if the check mode is cancelled by the way mentioned above. It takes

60 seconds maximum to display the memorized check code.

2-2 How to use the self diagnostic function for service A. For normal control with one unit and one remote controller

(1) Pressing the CHECK button on the remote controller twice starts the self diagnostic function. (2) During the self diagnostic function, “CHECK MODE” appears at two positions on the remote controller display. Then, at

least 10 seconds later, the unit address and the check code is alternately displayed at one-second intervals.

(3) Check and repair the unit according to the check code. (Refer to the next page.)

B. For group control using one remote controller

(1) Pressing the CHECK button on the remote controller twice starts the self diagnostic function. (2) Press the TEMP. button or TEMP. button on the remote controller to advance or go back to the unit address.

Each time TEMP. button is pressed, the unit address advances by one. Each time TEMP. button is pressed, the unit address goes back by one. The check code and the unit address, appear alternately.

(3) The check code “U8” means no malfunction has occurred since installation.

The check code “EO” means the following conditions:

● The unit address displayed on the remote controller does not apply to any unit.

● power is not supplied to the unit.

● Signal transmitting/receiving circuit is abnormal.

(4) Check and repair the unit according to the check code. (Refer to the next page.)

Unit

address

Check button

Page 56

Check

code

EO Signal transmitting/receiving

Diagnosis of malfunction Cause Check points

error

(Indoor controller does not

respond to remote controller signal.)

During individual unit control

1) Bad contact of transmission wire

2) Signal transmitting/receiving circuit is abnormal.

1) Check the transmission wire.

2) Check with another remote controller. If “EO” is still indicated, replace the indoor controller board. If other check code appears. replace the original remote controller.

P1P2Abnormality of room temper-

ature thermistor (RT1)

Abnormality of indoor coil

thermistor (RT2)

P3 Signal transmission error

(Remote controller does not

respond to indoor controller signal.)

P4 Abnormality of drain sensor 1) Bad contact of transmission

1) Bad contact of thermistor

2) Damaged thermistor

1) Bad contact of transmission wire

2) Signal transmitting/receiving circuit is abnormal.

3) Wrong operation due to noise wave emitted by other appliances

wire

2) Damaged thermistor

1) Check the thermistor.

2) Measure the resistance of the thermistor. Normal resistance should be as follows.

0 C ···15kΩ 30 C·····4.3kΩ 10 C······9.6kΩ 40 C·····3.0kΩ 20 C······6.3kΩ If the resistance is normal, replace the indoor controller board.

1) Check the transmission wire.

2) Check with another remote controller. If “P3” is still indicated, replace the indoor board. If other check code appears, replace the original remote controller.

3) Short-circuit between 1 and 2 of CN40 and attach CN40 to the following units.

● Second unit in twin control

● Second and third units in triple control

● Sub units in group control

1) Check the connector.

2) Measure the resistance of the thermistor 4 ~

5. As for the normal resistance, refer to the case of P1.

If the resistance is normal, replace the indoor controller board.

P5 Malfunction of drain pump 1) Malfunction of drain pump

P6 Coil frost protection is work-

ing.

System error

P8 Abnormality in outdoor unit 1) Wrong wiring of indoor/outdoor

2) Damaged drain sensor

1) Short cycle of air cycle

2) Dirty air filter

3) Damaged fan

4) Abnormal refrigerant

1) Wrong address-setting

2) Signal transmitting/receiving circuit of remote controller is abnormal.

3) Wrong SW6-setting

connecting wire

2) Reversed phase

3) Protection device is working

4) Damaged outdoor coil thermistor

1) Check the drain pump.

2) ● Check the drain sensor.

● Check the drain sensor heater. Normal resistance should be 82Ω.

If the resistance is normal, replace the indoor controller board.

1) Clear obstructions from the air cycle.

2) Clean the air filter

3) Check the fan.

4) Check the refrigerant temperature.

1) Check the address-setting.

2) Check with another remote controller. If check code other than “P7” appears, replace the original remote controller.

3) Check SW6 setting.

1) Check the indoor/outdoor connecting wire.

2) Change the connection of electric wiring.

3) Check the protection device.

4) Measure the resistance of the outdoor coil thermistor. If the resistance is normal, replace the outdoor controller board.

Page 57

3. SERVICE DATA INDICATION BY SWITCHES ON OUTDOOR CONTROLLER BOARD

LED

LD1

LD2

LD3

LD4

LD5

LD6

LD7

LD8

SW3-1

SW3-2

OFF

Blinking

Reversed phase

Open phase

63H2 function

51C function

26C function

Overheat protection

During 63H1 function

Compressor ON

Outdoor fan ON

4-way valve ON

Bypass valve ON

Crankcase heater ON

Lidhting

128

256

512

1024

2048

4096

8192

16384

32768

Outdoor coil thermistor is abnormal.

Compressor ON command from indoor controller

Heating operation command from indoor controller

Input circuit on controller board is abnormal

Check code Output state

Outdoor coil temperature

(bit)

Outdoor coil temperature

(bit)

Total time of compressor

operation(Hr)

Setting dip switches SW2 and SW3 on the outdoor controller board enables LED to show the output state and check code. Output state is shown by LED lighting, and check code by blinking.

SW1 : Turning SW1 ON clears the check code. If SW1 is turned ON while the check code is blinking , the indication

changes to output state indication.

NOTE : SW1 is usually available independent of SW3 setting. As an exception, when the check code shows a

reversed phase or an open phase during the power-on-reset state, SW1 is not available.

SW2 : SW2 is turned ON by pressing, and OFF by releasing.

When SW3-1 and SW3-2 are OFF, pressing SW2 changes indication between output state and check code alternately. When SW2 is turned On with SW3-1 OFF and SW3-2 ON, the compulsory defrosting starts.

SW3 : Output state indication items depend on the combination of SW3-1 ON/OFF and SW3-2 ON/OFF.

Changed alternately by pressing SW2.

Page 58

3-1 Outdoor coil temperature

Fan output step (bit)

Fan rotational frequency (rpm)

100 150 200 250

800

600

400

200

Fan output step (bit)

Fan rotational frequency (rpm)

100 150 200 250

800

600

400

200

To obtain data on the outdoor coil temperature, add the number of bits of lighting LEDs, and see the graph below to find the temperature.

Short

Temperature

Open

Number of bits

3-2 Fan output step

To obtain data on the fan output step, add the number of bits of lighting LEDs, and see the graph below to find the fan rotational frequency.

1PUH-2NKA, PUH-4TKSA

PUH-1.6/2KA, PUH-4KSA

2PUH-2.5NKA, PUH-3NKA

PUH2.5VKA, PUH-2.5/3KA

3-3 Total time of compressor operation

Compressor operation time is indicated in 256 hour units. To obtain the compressor operation time, add the hours of lighting LEDs. During the compressor operation time indication, SW2 is not available.

3-4 Check code indication

● When a protection function works for the first time during operation, the operation stops and restarts after the 3-minutes time delay mode. When the protection function works again, the operation stops. (Check mode) When both SW3-1 and SW3-2 are OFF, the check code is indicated.

● If the outdoor controller board receives the compressor ON command from the indoor controller board during check mode the indication changes to output state indication.

● By pressing SW2 during normal operation. operation will continue.

● The latest check code is indicated.

Page 59

4. TROUBLESHOOTING ACCORDING TO CHECK CODE

Blinking

LED LD1 Reversed phase Phases L1, L2, and L3are con-

Diagnosis of malfunction Cause Check point

Check the power supply connection.

nected improperly.

LD2 Open phase ● Phase L2is open.

LD3 Outdoor coil thermistor is

abnormal. (Open circuit or short circuit)

LD4 High pressure switch (63H2)

function

LD5 Thermal relay (51C) function ● 51C was connected incor-

LD6 Thermal switch (26C) function. ● 26C was connected incor-

LD7 Over heat protection ● The thermistor is broken.

LD8 Input circuit of outdoor con-

troller board is abnormal.

● Contact of protector, such as thermal switch, opened when power was turned on.

● Outdoor coil thermistor is broken.

● Thermistor was connected incorrectly.

● 62H2 was badly connected.

● 63H2 was working.

rectly.

● 51C was working.

rectly.

● 26C is working.

● Coil temperature is over

67°C.

● Pulse input is abnormal. ● Replace the outdoor controller board.

● Check the power supply.

● Check each protector.

● Measure the resistance of the thermistor.

● Check the thermistor. If normal, replace the out-

door controller board.

● Check 63H2 and the outdoor fan motor.

● Check if refrigerant supply is low.

● Check if air cycle is short-cycled.

● Check 51C, the compressor, and power supply.

● Check 26C.

● Check if refrigerant supply is low.

● Check if the capillary tube is clogged.

● Measure the resistance of the thermistor.

● Check the outdoor fan motor.

● Check if air cycle is short-cycled.

5. WHEN OUTDOOR UNIT DOES NOT WORK

Cause

1) Indoor/outdoor connecting wires are poorly connected. (Refer to next page.)

2) Power supply cord is poorly connected.

3) Connector or transformer is broken.

4) Fuse (6.3A) in the outdoor controller board is blown.

Check points

1) Check the connecting wires.

2) Check the power supply cord.

3) Check connectors and transformers.

4) Check the fuse.

Page 60

6. WRONG WIRING ON SITE

OutdoorIndoor

1 2 3

OutdoorIndoor

1 2 3

OutdoorIndoor

1 2 3

OutdoorIndoor

1 2 3

OutdoorIndoor

1 2 3

6-1 Between remote controller and indoor unit

If the wire is disconnected between the remote controller and the indoor unit, nothing is displayed on the remote controller

when the POWER button is pressed. The beep sound will also not be heard.

6-2 Phenomena due to wrong wiring between indoor and outdoor units

Wrong wiring Mode

Disconnection between 1 and 1 or 2 and 2.

COOL

HEAT

COOL

HEAT

COOL

HEAT

COOL

HEAT

COOL

HEAT

COOL

HEAT

Thermostat

Phenomenon

OFF Operation stops.

4-Way valve turns ON. 9 minutes later, check code “P8” appears

on remote controller display.

OFF

Cooling operation. Several minutes later,check code “P8” appears on remote controller display.

ON Normal operation.

OFF Outdoor unit stops.

Operation stops. 9 minutes later, check code “P8” appears on

remote controller display.

OFF Operation stops.

Operation stops. 27 minutes later, check code “P8” appears on

remote controller display.

OFF Outdoor unit stops.

Operation stops. 9 minutes later, check code “P8” appears on

remote controller display.

OFF Operation stops.

Operation stops. 27 minutes later, check code “P8” appears on

remote controller display.

OFF Outdoor unit stops.

Operation stops. 9 minutes later, check code “P8” appears on

remote controller display.

OFF Operation stops.

Operation stops, 27 minutes later, check code “P8” appears on

remote controller display.

OFF Outdoor unit stops.

Operation stops. 9 minutes later, check code “P8” appears on

remote controller display.

OFF Operation stops.

Operation stops. 27 minutes later, check “P8” appears on remote

controller display.

OFF Operation stops.

Operation stops. 9 minutes later, check code “P8” appears on

remote controller display.

OFF Operation stops. 4-way valve turns OFF.

27 minutes later, check code “P8” appears on remote controller

display.

Disconnection between 3 and 3.

COOL

HEAT

Normal operation.

–

OFF Operation stops. 4-way valve turns ON.

Operation stops. 27 minutes later, check code “P8” appears on

remote controller display.

Page 61

7. OTHER TROUBLES AND CAUSES

Vanes do not work.

Unit stops after 5 to

20 seconds operation

Air discharge display

is OFF and air discharge UP/DOWN button does not operate.

In this case, remote

controller is normal.

Power ON/OFF button

is not available.

Vane motor does not work. Limit switch does not work. Connector is poorly connected. Vane motor is poorly assembled. Indoor controller board is damaged.

Protection function is working.

Indoor controller board deems the auto vanes are not attached to the unit. Horizontal angle can not be detected.

Beep sound is heard, but display is turned OFF.

Beep sound is not heard, and display remains OFF.

“CENTRALLY CONTROLLED” is displayed.

Indoor controller is damaged. Dip switch setting is wrong.

Indoor controller is damaged. Vane motor is damaged. Vane motor limit switch is poorly connected. Auto vane is wired after power is turned to ON.

Indoor/outdoor connecting wire is connected incorrectly. Indoor/outdoor connecting wire shorts. Compressor protector is damaged. Outdoor controller board is detective.

Remote controller is damaged. Transmission wire is poorly connected

Vane motor is damaged. Vane motor relay is damaged.

Limit switch is damaged. The size of the cam is wrong.

Refer to check code on remote controller display. See page 56.

Vane motor limit switch is damaged. Vane motor is damaged.

Poorly connected Disconnected

Transmission wire is damaged. Connector is poorly connected. Indoor terminal block is poorly connected. Remote controller terminal block is poorly connected.

8. MR. SLIM/LOSSNAY INTERLOCK OPERATION

If any of the following symptoms occur, they are not malfunctions.

Symptom

LOSSNAY control switch can not work during interlock opera-

LOSSNAY control switch does not work.

LOSSNAY air speed can not be controlled in interlock opera-

tion.

For LOSSNAY, troubleshooting refer to the LOSSNAY technical & service manual.

tion. LOSSNAY control switch is effective only while Mr. SLIM is not operating.

LOSSNAY fan speed is fixed to HIGH during interlock operation. LOSSNAY fan speed LOW/HIGH can be switched only during LOSSNAY individual operation with the LOSSNAY control switch.

Cause

Page 62

9. How to check the parts

-20 -10 0 10 20 30 40 50

< Thermistor for lower temperature >

Temperature (:)

Resistance (K")

Red

White

Black

Relay connector

Protector

Parts name Check points

Measure the resistance between the terminals using a tester. (Winding temperature 20:)

Fan motor (MF)

Abnormal

Open or short

Red–Black

White–Black

Motor terminal

Relay connector

PKH-2FKA

154.3"

162.0"

PKH-2.5, 3FKA2/3

99.5"

103.9"

PKH-4FKSA

2/3

62.6"

74.0"

Normal

Open or short

Abnormal

Brown–Yellow

Brown–Blue

Red–Orange

Red–Pink

Connector

Normal

186~214"

Measure the resistance between the terminals using a tester. (Surrounding temperature 20:~30:)

Vane motor (MV)

Room temperature thermistor (RT1)

Pipe temperature thermistor (RT2)

Disconnect the connector then measure the resistance using a tester. (Surrounding temperature 10:~30:)

Normal

4.3k"~9.6k"

Abnormal

Open or short

Protector

OFF : 120i5: ON : OFF–15:

OFF:130i5: ON :80i20:

Thermistor for lower temperature

Thermistor R0=15k' ± 3% Fixed number of B=3480k' ± 2%

Rt=15exp { 3480( ) }

0: 15k' 10: 9.6k' 20: 6.3k' 25: 5.4k' 30: 4.3k' 40: 3.0k'

Room temperature thermistor(RT1) Pipe temperature thermistor(RT2)

273+t

273

Page 63

Unit

Remote controller

Unit Unit

Optional adapter

Remote ON/OFF switch

Remote controller

Relay box

Unit

Remote controller

Unit Unit

Unit

Remote controll display board

Remote controller

Unit Unit

Circuit breaker

Remote controller

SYSTEM CONTROL

1. VARIETY OF SYSTEM CONTROL FUNCTIONS

1 Group control with

a single remote controller (See page 64.)

2 Both remote

ON/OFF and individual controls (See page 65.)

w Timer adapter

(PAC-SA89TA-E) is needed.

3 Individual control

by grouping remote controllers (See page 66.)

4 Multiple remote

control display (See page 67.)

w Multiple display

adapter (PAC-SA88HA-E) is needed.

Many units, installed at different locations, can be started and controlled with a angle remote controller. The remote controller can be mounted in a different location using a non-polar two-wire cable, which can be extended up to 500m. Amaximum of 50 units can be controlled with a single remote controller. All units operate in the same mode.

All units can be turned on or off simultaneously using a remote ON-OFF switch. Also, each unit can be controlled individually by each remote controller. Dunning remote ON-OFF control, a message of “CENTRALLY CONTROLLED” is displayed on the LCD of the remote controller. This is available for both one unit control and several units control.

By grouping the remote controllers in one place, several units installed at different locations can be controlled individually, and operation conditions of all units are visible without a special control board. The control method is the same as that of the single unit with a single remote controller.

Several units can be controlled with a remote control display board. Operation conditions of all the units are visible with the remote control display board. Individual control by each remote controller is also possible.

5 Auto restart

function (See page 67.)

A unit can be started or stopped with the circuit breaker on or off. Remote controller is also available. With this function, when the power is restored after power failure, the unit will restart automatically. (However, when the remote controller POWER ON/OFF button is OFF, the unit will not start.)

Page 64

2. GROUP CONTROL WITH A SINGLE REMOTE CONTROLLER

To remote controller

To next unit

The last unit does not have this wire.

Next unit electrical box

Master unit electrical box

123ANE

Master unit

No.1 unit No.2 unit Last unit

2-wire cable

A maximum of 50 units can be started in order according to the dip switch settings

2-1 How to wire

(1) Connect the remote controller to the double terminal block

on the indoor controller board of the master unit (No.0 unit). (See Figure 1.)

(2) Connect the double terminal block of the master unit to the

double terminal block of No.1 unit.

(3) Connect the double terminal block of No.1 unit to the dou-

ble terminal block of No.2 unit.

(4) Continue the process until all the units are connected with

two-wire cables. (See Figure 2.)

(5) Remove the connector CN40 from the indoor controller

board of each unit except the master unit. (See Figure 3.)

(6) Set the unit-address of each unit with SW2 on the indoor

controller board following the instructions below.

2-2 How to set unit-address

The unit-address also serves as a successive-start timer which starts each unit at intervals of 1 second. If two or more units have the same unit-address in a group control, operation stops due to system error. Be sure to set SW2 correctly following the instructions below. (1) Each lever of SW2 shows the number as follows.

SW2-1 : 1 SW2-4 : 8 SW2-2 : 2 SW2-5 : 16 SW2-3 : 4 SW2-6 : 32

(2) Total number of levers turned to ON shows the address of

the unit. For example, to set No.3 unit, turn ON SW2-1 and SW2-2.

(3) In this way, set from the. master unit to the last unit.

Do not forget to set the master (No. 0) unit.

Figure 1

Figure 2

Figure 3

Indoor controller board ▼

Should be removed from all units other than unit No.0:(Master Unit)

Setting examples

Master (No. 0) unit

ALL OFF

No. 1 unit

1 ON

No. 2 unit

2 ON

No. 4 unit

3 ON

No. 8 unit

4 ON

No. 16 unit

5 ON

SW2

Unit address & start delay in seconds.

2-3 Unit control

The remote controller can control all units ON/OFF, temperature,air flow, and swing louver. However, the thermostat in each unit turns ON or OFF individually to adjust to the room temperature.

No. 32 unit

6 ON

Page 65

3. REMOTE ON-OFF AND INDIVIDUAL REMOTE CONTROLS

Remote controller

power supply of control circuit

Remote ON/OFF

switch

2-wire remote controller cable

Figure 6

Relay box

Timer adapter cables

Timer adapter PAC-SA89TA-E

This method is available to control one unit or any number of units. The following operations are available by connecting a relay, a timer adapter (PAC-SA89TA-E), and a remote ON/OFF switch

to the system. Timer adapter is an optional part. Other parts are available on the market. (A) To start all units in order by remote ON-OFF switch (B) To stop all units simultaneously by remote ON-OFF switch (C) To switch between the remote ON-OFF control and the individual remote control

3-1 System

Figure 6 shows the case of three units.The same is the case with any number of units.

Page 66

NOTE1 : Install the relay box where you can be serviced it easily.

Power supply

Remote ON/OFF switch

No.1 unit relay box

No.2 unit relay box

Next unit

X2 X2

Glow switch or pilot lamp can be combined to easily identify the on-off mode of SW1 and SW2.

To No.1 unit

To No.2 unit

Timer adapter cables

Remote controller

SW2

Remote controller cable (2-core)

Remote controller

NOTE2 : For control circuit wiring, use a wire of No. 14 AWG or a control cable according to the power supply of control

circuit.

NOTE3 : When the power supply of the control circuit is 220/240V AC,

● Do not connect the control circuit wire to the remote controller cable directly.

● Do not place the control circuit wire and the remote controller cable into the same conduit tube.

3-2 Basic wiring

Caution : Before starting all units simultaneously by the remote ON-OFF switch, be sure to connect a sequence-start timer

into the remote ON-OFF circuit. Otherwise, a rush of starting current may damage the power supply.

3-3 Switch function of remote ON-OFF switch

SW2

(Switches between remote ON-OFF and individual control)

SW1 (Switches between remote ON and OFF.)

(Start)

OFF

(Stop)

(Remote ON-OFF control)

All units start together.

Individual control is not available. All units start together.

Individual control is not available.

Each unit can be controlled by each remote controller. Remote ON-OFF switch is not available.

OFF

(Individual control)

w1 After all units start together, if SW2 is turned OFF, each unit can be individually stopped by each remote controller. w2 After all units stop together, if SW2 is turned OFF, each unit can be individually started by each remote controller.

4. INDIVIDUAL CONTROL BY GROUPING THE REMOTE CONTROLLERS

● Grouping the remote controllers allows individual control and centralized monitoring of units installed in different places without a special control board.

● Remote control cables are extendible up to 500m. When the cable length exceeds 12m, use the double-insulated two-care cable such as Belden 9407. Also, the cable thickness must be No. 22 AWG or above.

● When gathering the power ON/OFF switches of air conditioners near the remote controllers, you should also install the power ON/OFF switch near each unit to prevent electric trouble during servicing.

Page 67

5. MULTIPLE REMOTE CONTROL DISPLAY

CN51

connector(5P)

GREEN

Power supply

Electrical insulation is needed.

Local wiring

Optional multiple display adapter

The maximumdistance between indoor board and relay is 10m.

YELLOW ORANGE

RED

BROWN

Power supply

Remote controller cable

Relay box (Field supply)

Remote controller

3wires 3wires 3wires

2wires

No.1 unit No.2 unit No.3 unit

Muitiple remote control ON-OFF display (Field supply)

(Operation check)

Power supply

RL-1 GL-1

Multiple Remote Control Display

Multiple remote controller adapter

connect to the connector CN51

Relay box

X1-1

X2-1

RL-2 GL-2

RL-3

No.1 unit

GL-3

No.2 unit

No.3 unit

X1-2

X2-2

X1-1

X2-1

Remote controller

A B

Brown

Red

Orange

Remote controller

A B

Brown

Red

Orange

You can control several units with a multiple remote control display,by wiring an optional multiple display adapter (PAC-SA88HA-E) with relays and lamps on the market.

5-1 How to wire

(1) Connect the multiple display adapter to the connector CN51 on the

indoor controller board.

(2) Wire three of the five wires from the multiple display adapter as shown

in the figure below.

[Notes on Signs] X1:Relay (for check lamp) X2:Relay (for operation lamp) RL:Check Lamp GL:Operation Lamp [Field supplied parts]

Relays:12V DC with rated coil power con-

sumption below 0.9W.

Lamps:Matching to power supply voltage.

6. AUTO RESTART FUNCTION

By setting the dip swich SW1-10 to ON (PKH-2FKA), J1-10 cut (PKH-2.5/3/4FK(S)A) the air conditioner can be

started/stopped by power supply ON/OFF.

If the air conditioner is OFF before the power failure, it will not start operation by power restore.

For remote control, connect the optional timer adapter (PAC-SA89TA-E)

A : an optional timer adapter B : a single-throw switch

Page 68

Metal fixture

Screws

Hanger of indoor unit

Catch of installation plate

Terminal cover

Electrical parts box cover

Indoor controller board

Right side panel

DISASSEMBLY PROCEDURE

PKH-3FKA2, PKH-3FKA3

OPERATING PROCEDURE PHOTOS&ILLUSTRATION

1. Removing the lower side of the indoor unit from the installation plate

(1) Remove the 2 screws.

Hang the indoor unit hangers to the catches on the installation plate.

Figure 1

2. Removing the right side panel

(1) Remove the 2 screws of the right side panel:one on the

bottom and the other on the upper right-hand side.

(2) Sliding the right side panel to the right, pull it out toward

you.

3. Removing the indoor controller board

(1) Remove the right side panel. (2) Remove the screw of the electrical parts box cover, and

remove the cover. (3) Disconnect the connectors on the indoor controller board. (4) To unhook the catches on the right-hand side of the indoor

controller board, pull the left-hand side toward you and lift

up the cover to the right. Then the indoor controller board

can be removed.

Figure 2

Photo 1

Indoor controller

board

Electrical parts box cover

Catches

4. Removing the electrical parts box

(1) Remove the right side panel. (2) Remove the screw of the electrical parts box cover, and

remove the cover. (3) Remove the room temperature thermistor and the pipe

temperature thermistor. (4) Disconnect the vane motor connector on the indoor con-

troller board. (5) Remove the 2 screws of the electrical parts box. (6) Disconnect the connector of the heater lead wire connec-

tor. (7) Disconnect the connector of the fan motor lead wire. (8) Remove the electrical parts box.

Photo 2

Room temperature thermistor

Pipe temperature thermistor

Screws

Electrical parts

box

Page 69

OPERATING PROCEDURE PHOTOS&ILLUSTRATION

Catch on the left side panel

Catch on the unit

(9) Remove the screws of the indoor controller board case,

and pull out the indoor controller board case. Then the transformer and the capacitor can be serviced.

5. Removing the vane motor

(1) Remove the right side panel. (2) Remove the screw of the electrical parts box cover, and

remove the cover.

(3) Remove the 2 screws of the vane motor, and remove the

motor from the shaft.

(4) Disconnect the vane motor connector on the indoor con-

troller board.

Photo 3

Capacitor

Indoor controller board case

Photo 4

Transformer

Electrical parts box

Screws

6 Removing the intake grilles

(1) Remove the right side panel. (2) To remove the left side panel, remove the screw on the

bottom and the screw on the upper left-hand side.

(See Figure 3.)

1. Press up this side of the left side panel to unhook the catch on the panel from the catch on the unit.

2. Slide the left side panel to the left to remove the panel.

Note: Fix the unit to the metal fixture securely (3) Remove the air filters. (4) Hold and press the center cover to remove. (5) Remove the screws of the grilles. (6) Pull the lower side of the grille toward you and slide the

upper to the right to remove the grilles.

7. Removing the drain pan

(1) Remove the left and right side panels. (2) Remove the grills. (3) Remove the electrical parts box cover. (4) Loosen the drain hose band to remove. (5) Remove the 3 screws of the drain pan, and slide the drain

pan toward you to remove.

Vane motor

Figure 3

Photo 5

Left side panel

Photo 6

Slide to the

right

Screws for grills

Drain pan

Screws

Indoor controller board

Grilles

Drain hose band

Drain hose

Page 70

OPERATING PROCEDURE PHOTOS

8. Removing the lineflow fan and the fan motor

(1) Remove the left and right side panels. (2) Remove the grilles. (3) Remove the electrical parts box. (4) Remove the drain pan. (5) Loosen the screw that fixes the lineflow fan to the fan

motor. (See Photo 7. )

(6) Remove the 4 screws of the motor fixture, and remove the

fan motor and the motor fixture at a time (See Photo 8.)

(7) Remove the screws of the left and right motor supports,

and remove the motor supports and the fan motor. (See Photo 9.)

(8) Remove the screw of the center support, and remove the

support. (See Photo 10. )

(9) Remove the 2 screws on the left and right sides of the heat

exchanger, and pull the bearing support toward you. (See Photo 11.)

(10) Pull the left-hand side of the heat exchanger toward you,

and remove the lineflow fan.

Photo 7

Photo 8

Lineflow fan

Screw

Fan motor

Screws

Fan motor

Photo 11

Heat exchanger

Bearing support

Lineflow fan

Photo 9

Screw

Motor support

Photo 10

Fan motor

Lineflow fan

ScrewCenter support

Motor fixture

Screw

Motor support

Page 71

No.

Part No. Part Name Specification

PKH-2

Wiring

Diagram

Symbol

Recommended

Q'ty

Unit

Amount

Q'ty / set

Price

FRONT PANEL FRONT PANEL SCREW CAP CATCH HOLDER FILTER CATCH AIR FILTER AIR FILTER SERVICE PANEL PANEL CATCH UNDER COVER CORNER COVER BOX ASSEMBLY BACK PLATE

4 2 2 2

1 2 1 1 1 1

1 4 2 2

2 1 2 1 1 1 1

(BC25R572H06)

(BC25G057H07)

Remarks

(Drawing No.)

R01 KV5 651 R01 47J 651 R01 KV5 096

— R01 A20 054 R01 KV5 500 R01 47J 500 T7W 580 058

— R01 KV5 623 R01 KV5 658 R01 KV5 635 R01 KV5 808

2 3 4

6 7 8

9 10 11

FKA

FKA2 FKA3

FKA

PARTS LIST

STRUCTURAL PARTS PKH-2FKA PKH-2FKA1 PKH-2FKA2 PKH-2FKA3

Page 72

No.

Part No. Part Name

Specification

Wiring

Diagram

Symbol

Recommended

Q'ty

Unit

Amount

Q'ty / set

Price

4 5 6 7 8

LEFT SIDE PANEL UNDER PLATE UNDER PLATE NOSE NOSE AIR FILTER INTAKE GRILLE RIGHT SIDE PANEL BACK PLATE TOP PLATE BOX ASSEMBLY BOX ASSEMBLY DRAIN SOCKET

(BG00A593G71) (RG00A734G29)

1 1

4 2 1 1 1 1

1 1

4 2 1 1 1 1

1 1

4 2 1 1 1 1

1 1

4 2 1 1 1 1

Remarks

(Drawing No.)

R01 12G 662 R01 12G 812 R01 E01 812 R01 12G 811 R01 E00 811 R01 A17 500 R01 12G 691 R01 12G 661 R01 12G 808 R01 E01 641

— —

R01 12G 523

PKH-2.5 PKH-3

FKA

1 4 2 1 1 1

1 1

FKA 1 FKA 2

FKA

1 4 2 1 1 1

1 1

FKA3 FKA3

FKA

FKA2

STRUCTURAL PARTS PKH-2.5FKA PKH-3FKA PKH-2.5FKA1 PKH-3FKA1 PKH-2.5FKA2 PKH-3FKA2 PKH-2.5FKA3 PKH-3FKA3

Part number that is circled is not shown in the figure.

Page 73

STRUCTURAL PARTS

No.

Part No. Part Name

Specification

Wiring

Diagram

Symbol

Recom-

mended

Q'ty

Unit

Amount

Q'ty / set

Price

4 5 6 7 8

10 11

LEFT SIDE PANEL UNDER PLATE UNDER PLATE NOSE NOSE AIR FILTER INTAKE GRILLE RIGHT SIDE PANEL BACK PLATE TOP PLATE BOX ASSEMBLY BOX ASSEMBLY INTAKE GRILLE DRAIN SOCKET

(BG00A593G72) (RG00A734G30)

1 1

5 2 1 1 1 1

1 1

5 2 1 1 1 1

1 1

Remarks

(Drawing No.)

R01 12G 662 R01 16G 812 R01 E00 812 R01 16G 811 R01 E01 811 R01 A17 500 R01 12G 691 R01 12G 661 R01 16G 808 R01 E00 641

—

— R01 16G 692 R01 12G 523

PKH-4

FKSA

1 5 2 1 1 1

1 1 1

FKSA3

FKSA

FKSA2

PKH-4FKSA PKH-4FKSA1 PKH-4FKSA2 PKH-4FKSA3

Part number that is circled is not shown in the figure.

Page 74

ELECTRICAL PARTS

FILTER CHECK MODE

CHECK

TEST RUN

MITSUBISHI ELECTRIC

-CENTRALLY CONTROLLED STAND BY DEFROST

CHECK DRY

COOL

HEAT

CHECK

SET TEMP

TIMER OFF AUTO STOP AUTO START

LOW HIGH

AUTO RETURN

CHECK TEST RUN

POWER

ON/OFF

HEAT

SET TEMPERATURE

AUTO COOL/DRY

COOLERWARMER

TIMER MODE HOURS

FAN SPEED LOW/HIOGH

AIR DISCHARGE

UP/DOWN

SWING

STOP

CHECK TEST RUN

PKH-2FKA PKH-2FKA1 PKH-2FKA2 PKH-2FKA3

9 11

For PKH-2FKA

PKH-2FKA1

For PKH-2FKA2

PKH-2FKA3

Page 75

No.

Part No. Part Name Specification

FKA

FKA3

FKA

Wiring

Diagram

Symbol

Recom-

mended

Q'ty

Unit

Amount

PKH-2

Q'ty / set

Price

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

27 28 29 30 31 32 33

BEARING SUPPORT BEARING MOUNT SLEEVE BEARING LINEFLOW FAN VANE MOTOR NOZZLE ASSEMBLY LEFT ROTARY VANE CENTER SUPPORT VANE SLEEVE DRAIN HOSE TERMINAL COVER RIGHT ROTARY VANE ARM GUIDE VANE REMOTE CONTROLLER REMOTE CONTROLLER COVER REMOTE CONTROLLER REMOTE CONTROLLER CABLE CONTROL BOX COVER INDOOR CONTROLLER BOARD CONTROLLER CASE FUSE TERMINAL BLOCK TERMINAL BLOCK TERMINAL BLOCK TRANSFORMER TRANSFORMER FAN MOTOR CAPACITOR THERMISTOR WATER SHIELD MOTOR SUPPORT FAN MOTOR RUBBER MOUNT MOTOR COVER HEAT EXCHANGER HEAT EXCHANGER DRAIN SOCKET

250V 6.3A 3P(L/N/ ; ) 2P(1/2) 3P(1/2/3)

2+ 440V

PK4V30-KA

1 1 1 1 1 1 1 1 1 1 1 1 2

1 1

1 1 1 1 2 1 1 1 1

1 2 1 1 1 2 1 1

1 1 1 1 1 1 1 1 1 1 1 1 2

1 1 1 1 1 2 1 1 1

1 1 2 1 1 1 2 1

1 1

(BG25B750H02)

(BG25M017H06)

(BG02B718H05)

(BG25D912H04) (BG25F045H04)

(BG02A326G06)

(BG25B573H03)

(BG25B846H11)

R.B

I.B

F1<I.B>

TB2 TB5 TB4

T T C

Remarks

(Drawing No.)

PIPE TEMPERATURE ROOM TEMPERATURE

RT1 RT2

R01 KV5 106 R01 KV5 102 R01 566 103 R01 KV5 114 R01 KV5 223 R01 KV5 530 R01 KW1 002

— —

R01 KV5 527

—

R01 KW2 002

—

— T7W 419 200 T7W 351 077 T7W 54J 200 T7W 556 305

— T7W 70J 310

— T7W 520 239 T7W 514 716 T7W 512 716 T7W 517 716 T7W 580 799 T7W 53J 799 R01 588 255 R01 J07 202

— R01 KV5 130 T7W 570 762 R01 KV5 105 R01 KV5 135 R01 KV5 480 T7W 54J 480 R01 12G 523

Part number that is circled is not shown in the figure.

Page 76

No.

Part No. Part Name

Specification

Wiring

Diagram

Symbol

Recommended

Q'ty

Unit

Amount

Q'ty / set

Price

1 2 3 4

7 8

BEARING MOUNT SLEEVE BEARING LEFT LINEFLOW FAN BEARING BAND HEAT EXCHANGER HEAT EXCHANGER DRAIN PAN DRAIN PAN JOINT SHAFT CENTER COVER

(BG02L462H02)

1 1 1 1 1

1 1

1 1 1 1

1 1

Remarks

(Drawing No.)

R01 Z61 102 R01 005 103 R01 13G 114

— T7W 585 480 T7W 587 480 R01 12G 529 R01 E13 529 R01 12G 063 R01 12G 621

PKH-2.5 PKH-3

FKA

FKA3 FKA3

FKA

FKA2

FKA

FKA1 FKA2

1 1 1 1 1

1 1

1 1 1 1 1

1 1 1

1 1 1 1

1 1

1 1 1 1

1 1 1

FILTER

CHECK MODE

CHECK

TEST RUN

MITSUBISHI ELECTRIC

-CENTRALLY CONTROLLED STAND BY DEFROST

CHECK DRY

COOL

HEAT

CHECK

SET TEMP

TIMER OFF AUTO STOP AUTO START

LOW HIGH

AUTO RETURN

CHECK TEST RUN

POWER

ON/OFF

HEAT

SET TEMPERATURE

AUTO COOL/DRY

COOLERWARMER

TIMER MODE HOURS

FAN SPEED LOW/HIOGH

AIR DISCHARGE

UP/DOWN

SWING

STOP

CHECK TEST RUN

ELECTRICAL PARTS PKH-2.5FKA PKH-3FKA PKH-2.5FKA1 PKH-3FKA1 PKH-2.5FKA2 PKH-3FKA2 PKH-2.5FKA3 PKH-3FKA3

1 2

For PKH-2.5FKA

PKH-3FKA

For

PKH-2.5FKA1, PKH- 2.5FKA2, PKH-2.5FKA3, PKH-3FKA1, PKH-3FKA2, PKH-3FKA3,

Page 77

No.

Part No. Part Name

R01 KV5 527

R01 12G 002

10 11

R01 12G 223

T7W 556 305

R01 06A 202

R01 22A 202

16 17

R01 588 255

T7W 503 310

T7W 71J 310 T7W 520 239

20 21 22

T7W 50J 799

T7W 512 716

T7W 517 716

T7W 509 716

26 27

R01 12G 220

28 29

R01 12G 105

30 31

R01 13G 115

32 33

R01 12G 103

R01 KV5 102

T7W 53J 200

T7W 418 200

— — —

—

— —

—

DRAIN HOSE AUTO VANE ARM GUIDE VANE GUIDE VANE(WITH HANDLE) VANE MOTOR REMOTE CONTROLLER CABLE ROOM TEMPERATURE THERMISTOR PIPE TEMPERATURE THERMISTOR TERMINAL COVER FAN MOTOR CAPACITOR INDOOR CONTROLLER BOARD INDOOR CONTROLLER BOARD FUSE CONTROLLER COVER CONTROLLER CASE TRANSFORMER TERMINAL BLOCK TERMINAL BLOCK TERMINAL BLOCK MOTOR BAND FAN MOTOR MOTOR LEG RUBBER MOUNT MOTOR BAND RIGHT LINEFLOW FAN CENTER SUPPORT SLEEVE BEARING BEARING MOUNT REMOTE CONTROLLER REMOTE CONTROLLER

Specification

2.0+ 440V 250V 6.3A

2P(1/2) 3P(1/2/3) 3P(L/N/;)

D094P40MS

Q'ty / set

PKH-2.5 PKH-3

FKA

FKA FKA3

FKA2

1 1

1 2

FKA FKA3

1 1

FKA FKA2

1 2 3

4 1 1 1 1 1 1

1 2 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1

Remarks

(Drawing No.)

1 2

(BG25H301H02)

(BG25J821H01)

(BG25J821H02)

4 1 1 1 1

(BG02J608H07)

1 1

1 2

(BG02A648G02)

(BG25B573H06)

1 1 1 1 1

(BG02H065H01)

1 1

(BG02A534H16)

1 2

(BG02H178H01)

1 1

(BG00R259G07)

1 1 1 1

Wiring

Recom-

Diagram

mended

Symbol

RT1 RT2

C I.B I.B

F1,2<I.B>

T TB5 TB4 TB2

R.B R.B

Q'ty

Unit

Price

Amount

Page 78

No.

Part No. Part Name

Specification

Wiring

Diagram

Symbol

Recom-

mended

Q'ty

Unit

Amount

Q'ty / set

Price

1 2 3 4 5

7 8 9

BEARING MOUNT SLEEVE BEARING LEFT LINEFLOW FAN BEARING BAND HEAT EXCHANGER DRAIN PAN DRAIN PAN JOINT SHAFT CENTER COVER DRAIN HOSE

(BG02L462H02)

1 1 1 1 1 1

1 1 1

Remarks

(Drawing No.)

R01 Z61 102 R01 005 103 R01 17G 114

— T7W 589 480 R01 16G 529 R01 E14 529 R01 12G 063 R01 12G 621 R01 KV5 527

PKH-4

FKSA3 FKSA

FKSA

FKSA2

1 1 1 1 1 1

1 1 1

1 1 1 1 1

1 1 1 1

FILTER

CHECK MODE

CHECK

TEST RUN

MITSUBISHI ELECTRIC

-CENTRALLY CONTROLLED STAND BY DEFROST

CHECK DRY

COOL

HEAT

CHECK

SET TEMP

TIMER OFF AUTO STOP AUTO START

LOW HIGH

AUTO RETURN

CHECK TEST RUN

POWER

ON/OFF

HEAT

SET TEMPERATURE

AUTO COOL/DRY

COOLERWARMER

TIMER MODE HOURS

FAN SPEED LOW/HIOGH

AIR DISCHARGE

UP/DOWN

SWING

STOP

CHECK TEST RUN

ELECTRICAL PARTS PKH-4FKSA PKH-4FKSA1 PKH-4FKSA2 PKH-4FKSA3

For PKH-4FKSA

For PKH-4FKSA1, PKH-4FKSA2, PKH-4FKSA3

Page 79

No.

Part No. Part Name

R01 16G 002

10 11

R01 12G 223

T7W 556 305

R01 06A 202

R01 22A 202

16 17

R01 576 255

T7W 503 310

T7W 71J 310 T7W 520 239

20 21 22

T7W 50J 799

T7W 512 716

T7W 517 716

T7W 509 716

26 27

R01 571 762

28 29

R01 16G 105

30 31

R01 17G 115

32 33

R01 12G 103

R01 KV5 102

T7W 53J 200

T7W 418 200

— — —

—

— —

—

AUTO VANE ARM GUIDE VANE GUIDE VANE(WITH HANDLE) VANE MOTOR REMOTE CONTROLLER CABLE ROOM TEMPERATURE THERMISTOR PIPE TEMPERATURE THERMISTOR TERMINAL COVER FAN MOTOR CAPACITOR INDOOR CONTROLLER BOARD INDOOR CONTROLLER BOARD FUSE CONTROLLER COVER CONTROLLER CASE TRANSFORMER TERMINAL BLOCK TERMINAL BLOCK TERMINAL BLOCK MOTOR BAND FAN MOTOR MOTOR LEG RUBBER MOUNT MOTOR BAND RIGHT LINEFLOW FAN CENTER SUPPORT SLEEVE BEARING BEARING MOUNT REMOTE CONTROLLER REMOTE CONTROLLER

Specification

3.0+ 440V

250V 6.3A

2P(1/2) 3P(1/2/3) 3P(L/N/;)

D10A4P70MS

Q'ty / set

PKH-4

FKSA FKSA2

2 4

22 4 1 1 1 1 1 1

4 1 1 1 1 1 1

2 4

4 1 1 1 1 1 1

FKSA FKSA3

1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

Remarks

(Drawing No.)

(BG25H301H02)

(BG25J821H01) (BG25J821H02)

(BG02J608H07)

(BG02A648G02) (BG25B573H06)

(BG02H065H01)

(BG02A534H17)

(BG02H178H01)

(BG00R259G07)

Wiring

Recom-

Diagram

mended

Symbol

RT1 RT2

C I.B I.B

F1,2<I.B>

T TB5 TB4 TB2

R.B R.B

Q'ty

Unit

Price

Amount

Page 80

Part No. Pipe length Pipe size O.D. Connection method

PAC-05FFS-E

Liquid:{9.52 Gas:{15.88

Indoor unit:Flared Outdoor unit:Flared

PAC-07FFS-E

PAC-10FFS-E

10m

PAC-15FFS-E

15m

Part No

Model Name

PAC-SC32PTA

Program timer

Parts name Parts No. Exterior dimensions (inch) Installation Type of clock Clock accuracy Display-Time

-Week

-Timer setting unit Program cycle Timer setting unit No. of set points Power rating

Program timer PAC-SC32PTA 5-4/32o4-23/32o23/32 (130o120o18mm) Wall mount Quartz ±50 second / month at 25: Liquid crystal display Liquid crystal display Liquid crystal display 24 hours 30 minutes 48 / day 5V DC ±5% (Suppled by Remote Controller)

28˚C

˚C

8:00

Normal

operation

23:00

Setback

operation

8:00

Normal

operation

Part No. Pipe length Pipe size O.D. Connection method

PAC-SC51PI-E

Liquid:{9.52 Gas:{19.05

Indoor unit:Flared Outdoor unit:Flared

PAC-SC52PI-E

PAC-SC53PI-E

10m

PAC-SC54PI-E

15m

OPTIONAL PARTS

1. REFRIGERANT PIPES

Service Ref. : PKH-2FKA3, PKH-2.5FKA2, PKH-2.5FKA3, PKH-3FKA2, PKH-3FKA3

Service Ref. : PKH-4FKSA2, PKH-4FKSA3

Note 1. How to connect refrigerant pipes.

Factory supplied optional refrigerant pipings contain refrigerant at the above atmospheric pressures. As long as the connection takes no more than 5 minutes, no air will enter, and there will be no need for air purging. Remove the blind caps and make the connections within 5 minutes. After the connections for the indoor and outdoor units are made, open the stop valve on the outdoor unit to allow refrigerant gas to flow. If piping length exceeds 5m,an additional charge of refrigerant is needed.

Note 2. The following main parts are contained in the optional refrigerant piping kit.

Heat insulating cover, vinyl tapes, nipples, sleeve and flange (for wall hole).

2. TIMER

2-1. Program timer specifications

2-2. Feature of program timer

(1) Daily timer function

Daily timer can be set in 30 minutes units for up to 24 hours. Each unit can be set for unit ON, unit OFF, or setback operation.

(2) Setback operation (PAC-SC32PTA)

Set back operation is useful for reducing running costs e.g. At a hotel with a 24-hour system

(3) Weekly timer function

8:00~23:00 Cooling operation with set temperature at 26°C 23:00~8:00 Setback operation with 2 degrees of setback

As shown in the chart on the right, the set temperature rises 2 degrees

automatically during the setback operation. When the setback operation ends, normal operation will begin.

Daily timer function can apply to each day of the week.

Page 81

SET/MONITOR

SET

S MT W TF S

MONITOR

PROERAN TIMER

PAC-SC32PTA

TODAY

WEEKLY SETTING

OFF

SET BACK

OFF

CLOCK DAILY TIMER

SET BACK

DAILY

SETTING

12 15 18 21 24

0 3 6 12 15

FILTER CHECK MODE

CHECK

TEST RUN

Use 5-wire cable

Connect 2-wire cable to indoor unit

Connect to CN1 Connect to CN1

2-3. How to connect program timer

1 2 3 4 5

BRN RED ORN YLW GRN

(1) Install the program timer next to the remote controller the same way as the remote controller is installed. (2) Connect the program timer and the remote controller with a 5-wire cable as shown in the figure below

NOTE:While the program timer is connected to the remote controller, the

24hour ON/OFF timer on the remote controller will not operate.

2-4. Names and functions

<PAC-SC32PTA>

WEEKLY TIMER SETTING DISPLAY

CURRENT TIME DISPLAY

SET BACK DISPLAY

DAILY TIMER SETTING DISPLAY

Used for selection of if or not the day operation pattern set by PATTERN SETTING is to be applied in weekly day unit setting.

During MONITOR status,current time is display. During Daily timer setting, a time desire for timer setting is

Indicates the setting set back range.

24 hours is divided into 48 blocks and each block express 30 minutes. The block display consists of 3 pattern.

displayed.

Set back can be done in the range of 1,2,4,6 and 8°C.

SET BACK SETTING SW

OFF

SET BACK

0 3 6 12 15

12 15 18 21 24

SET BACK

Used for set back setting.

DAILY

SETTING

OFF

ON/SET BACK/OFF SW

Used to specify the time setting pattern.

SET/MONITOR DISPLAY

During SET is display, clock adjustment, change of weekly day, daily and weekly timer setting can be performed. During MONITOR is display, all switches except SET/MONITOR SW are invalidated. This is normal status.

SET MONITOR

SET/MONITOR

PROERAN TIMER

PAC-SC32PTA

S M T W T F S

WEEKLY

TODAY

SETTING

CLOCK DAILY TIMER

WEEK DAY SETTING SW

DAILY TIMER SW

Used for week day setting.

MODE SELECTOR SW

Using this switch select “MONITOR” or “SET” Mode.

“MONITOR” :Indicates the current timer set-

ting. All switch expect MODE SELECTOR SW are invalidated then.This is the normal status.

“SET”: Set to “SET” mode for clock adjustment,

charge of week day, daily and weekly timer setting.

CLOCK ADJUSTMENT SW

Used for adjustment of the current time.

Push SW to advance the time. Each time the button is

pushed the time advance by 1 minute, pushing continuously advances by 1 minute at 0.5 second interval, and when the lower digit of minute becomes 0 indication advances in 10 minutes unit.

SW is used for reversing the time. Each time the button is pushed the time reverses by 1 minute, pushing continuously reverses the time by 1 minute at 0.5 second interval, and when the lower digit of minute becomes 0 indication reverses in 10

3. TIMER ADAPTER

minutes unit.

This adapter is needed for system control and for operation via external contacts. Adapter connection is described on page 65.

Part No. PAC-SA89TA-E

ORN 1 BRN RED

Used for timer setting in 30 minutes unit.

WEEKLY TIMER SW

Used for setting timer in day of week unit.

Pushing SW moves the week day light display in order of S → M → T → W enabling to set the week day.

2 3

…

4. MULTIPLE REMOTE CONTROLLER ADAPTER

This adapter is needed for remote indication (operation/check). Adapter connection is described on page 67.

Part No. PAC-SA88HA-E

Page 82

BACK

ACTIVE BYPASS

POWER ON/OFF

DUAL

CENTRAL

AHEAD

MITSUBISHI ELECTRIC

ENGAGED

GROUP

ACTIVE BYPASS

GROUP SELECTION

PROGRAM TIMER

CONTROLLER OPERATION

DUAL CENTRAL

12345678910

117

BACK

ACTIVE BYPASS

POWER ON/OFF

DUAL

CENTRAL

AHEAD

ENGAGED

GROUP

ACTIVE BYPASS

GROUP SELECTION

PROGRAM TIMER

CONTROLLER OPERATION

DUAL CENTRAL

12345678910

113

10 9 8 7 6 5 4 3 2 1

56.3 11

23.5

BACK

ACTIVE BYPASS

POWER ON/OFF

DUAL

CENTRAL

AHEAD

MITSUBISHI ELECTRIC

ENGAGED

GROUP

ACTIVE BYPASS

GROUP SELECTION

PROGRAM TIMER

CONTROLLER OPERATION

DUAL CENTRAL

12345678910

5. CENTRALIZED REMOTE CONTROLLER

Allows individual or combined control of up to 16 units. When using the PAC-805RC, the program timer adapter (PAC825AD)is also needed.

Part No. PAC-805RC

5-1. Dimensions

5-2. Functions

"ENGAGED" indicator When this indicator is lit, transmission is in

progress and all switches are inoperative.

POWER ON/OFF switch Operation ON/OFF switch.

▲BACK ▼AHEAD buttons These buttons are used to designate

DUAL/CENTRAL switch This change-over switch governing the oper-

ation of the accessory remote controller.

"DUAL" Instructions from both the accessory

remote controller and the centralized remote controller are valid. (Priority given to the last instruction received.)

"CENTRAL" ON/OFF switching by the accessory

remote controller is invalidated. Operation is controlled by the centralized remote controller only.

Initial setting is "DUAL".

the attached unit(s). (They designate the unit to be centrally controlled.)

●When group “00” is designated; collective ON/OFF instruction is sent to all units.

●When group “01”-“16“ is designated; ON/OFF instruction is sent to the designated units only.

ACTIVE/BYPASS switch This is a change-over switch for the program timer. (It selects timer operation on the program timer.) Use “BYPASS” when a program timer is not connected.

LCD Matrix Display This display indicates the operational sta-

tus of all connected units either by steady lighting or by flashing.

“ACTIVE” The switch turns ON/OFF operational instructions from the program timer automatically. “BYPASS” ON/OFF Operation is by the central-

Independent “DUAL / CENTRAL” and “ACTIVE / BYPASS” setting of all the groups is possible. When the power supply to the

centralized remote controller is cut due to power failure, all settings will return to original “DUAL” and “BYPASS”.

5-3. Connection method

(1) Connections in the power supply cord.

1. Connect the power supply cord to the power supply terminal-block and fix it in-place with a tie-wrap. Connect a single phase 200V AC (220, 230, 240V) to

As EEis the GND terminal, be sure to ground the earth wire.

2. Connect the transmission line to the transmission terminal-block and fix it in-place with a tie-wrap. Use a Ø1.6

AA NN

ized remote controller only. Initial setting is “BYPASS”.

(AWG 14) or above two-wire cable for the transmission line. CAUTION : Never connect the power supply cord to the transmission terminal-block.

Page 83

TERMINAL-BLOCK FOR TRANSMISSION

TERMINAL-BLOCK OF POWER SUPPLY

Transmission

Tie-wrap

TRANSFORMER

A N E

Fuse(5A)

Tie-wrap

(W) (R) (O)

(BR)

200

220

230

(Y)

240

N E

Wiring has to be changed when a 200,230 or 240V power is used.

(2) Connection method of centralized remote controller and power supply board.

1. Connect the centralized remote controller and power supply board with a non-polar, two-wire cable.

To adaptor's terminal-block

ENGAGED

GROUP

12345678910

GROUP SELECTION

PROGRAM

ACTIVE BYPASS

TIMER CONTROLLER

DUAL CENTRAL

OPERATION

Centralized remote controller

BACK

ACTIVE BYPASS

DUAL

CENTRAL

10 9 8 7 6 5 4 3 2 1

POWER ON/OFF

AHEAD

Non-polar, two-wire cable

Power supply board box

To adaptor's terminal-block

POWER SUPPLY

2. Wiring diagram 3. Be sure to set the maximum address number with the dip switch SW17 on the centralized remote controller.

BACK

ACTIVE BYPASS

DUAL

CENTRAL

10 9 8 7 6 5 4 3 2 1

POWER ON/OFF

AHEAD

Dip switch SW17

Centralized remote controller

Power supply board

ENGAGED

GROUP

12345678910

ACTIVE BYPASS

DUAL CENTRAL

GROUP SELECTION

PROGRAM TIMER

CONTROLLER OPERATION

Page 84

Length : 2m (6' 7")

6. PROGRAM TIMER ADAPTER

This adapter is needed when a program timer(PAC-SC32PTA)or a centralized remote controller(PAC-805RC)is used.

Part No. PAC-825AD

6-1. Parts included

1 ADAPTER ·························1P 2 3-core cable ···························1P

3 3-core cable···························1P

Length : 2m (6' 7")

4 4-core cable···························1P

5 5-core cable···························1P

6-2. Connection method

Connection and wiring methods differ with the type of the indoor unit used. Confirm the type before carrying out the work.

(1) Connections in the adapter box

1. Connect the power supply cord to the terminal-block and fix it in-place with a tie-wrap. Connect a single phase 200V (220, 230, 240V) AV to As EEis the GND terminal, be sure to ground the earth wire.

2. Connect the transmission line to the transmission terminal-block and fix it in-place with a tie-wrap (when a centralized remote controller is being used). CAUTION : Never connect the power supply cord to the transmission terminal-block

Fig-1 Fig-2

AA NN

TERMINAL-BLOCK FOR TRANSMISSION

Tie-wrap

Transmission cord

CN22

Dip switch

TRANS

CN1 CN21 CN51 CN30CN42 CN50 CN40

Fuse(5A)

TRANSFORMER

(AG)

SW1

A N E

POWER SUPPLY CORD

TERMINAL-BLOCK FOR POWER SUPPLY

Tie-wrap

Terminal block for transmission to program timer or centralized remote controller

Wiring has to be changed when 200V power supply is used.

(W)

CN22

TRANS

(B)

200

SW1

(Y)

240

220

(2) When the centralized remote controller is used, set the address number with the dip switch SW1 of the

program timer adapter.

7. DRAIN PUMP (for PKH-2.5FKA, PKH-3FKA, PKH-4FKSA)

Part No. PAC-SE89DM-E

A N E

POWER SUPPLY

Page 85

Page 86

HEAD OFFICE : MITSUBISHI DENKI BLDG.,2-2-3, MARUNOUCHI,CHIYODA-KU TOKYO 100-8310, JAPAN

New publication, effective Nov. 2001 Specifications subject to change without notice

Mitsubishi PKH-2FKA3, PKH-2.5FKA2, PKH-2.5FKA3, PKH-3FKA2, PKH-3FKA3 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual