Mitsubishi PKH-1.6FKHA3, PKH-2FKHA2, PKH-2FKHA3, PKH-3FKHA2, PKH-3FKHA3 Service Manual

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Page 1

SPLIT-TYPE,HEAT PUMP AIR CONDITIONERS

TECHNICAL & SERVICE MANUAL

2001

No.OC130

REVISED EDITION-A

Wall MountedSeries PKH

Indoor unit [Model names] [Service Ref.]

PKH-1.6FKHA PKH-1.6FKHA3 PKH-2FKHA PKH-2FKHA3 PKH-2.5FKHA PKH-2.5FKHA2

PKH-2.5FKHA3

PKH-3FKHA PKH-3FKHA2

PKH-3FKHA3

PKH-4FKHSA PKH-4FKHSA2

PKH-4FKHSA3

CONTENTS

1. TECHNICAL CHANGE·························2

2. PART NAMES AND FUNCTIONS········3

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

Indoor unit

FILTER CHECK MODE TEST RUN

REMOTE CONTROLLER

4. DATA···················································10

5. OUTLINES AND DIMENSIONS··········15

6. WIRING DIAGRAM ·····························19

REFRIGERANT SYSTEM DIAGRAM

8. OPERATION FLOW-CHART··············22

9. MICROPROCESSOR CONTROL ·······26

10. TROUBLESHOOTING························48

11. SYSTEM CONTROL···························59

12. DISASSEMBLY PROCEDURE···········64

13. PARTS LIST········································67

14. OPTIONAL PARTS·····························76

PKH-2.5FKHA3, PKH-3FKHA3 and PKH-4FKHSA3 are added in REVISED EDITION-A. Please void OC130. This manual does not cover the following outdoor units. When servicing them, please refer to the service manual No.OC128 REVISED EDITION-C and this manual in a set.

[Service Ref.] PUH-1.6VKA2, PUH-1.6VKA3, PUH-2VKA2, PUH-2VKA3, PUH-2.5VKA2, PUH-2.5VKA3, PUH-3VKA2, PUH-3VKA3, PUH-3YKA2, PUH-3YKA3, PUH-3YKA4, PUH-4YKSA3, PUH-4YKSA4

······21

Page 2

1 TECHNICAL CHANGE

PKH-2.5FKHA2 ➔ PKH-2.5FKHA3

PKH-3FKHA2 ➔ PKH-3FKHA3 PKH-4FKHSA2 ➔ PKH-4FKHSA3

● DRAIN PAN shape has changed.

● NOSE shape has changed.

● UNDER PLATE shape has changed.

● BOX ASSEMBLY shape has changed.

PKH-1.6FKHA3 ➔ PKH-1.6GKLH PKH-2FKHA3 ➔ PKH-1.6GKLH

● New model (Refer to OC229)

Page 3

2 PART NAMES AND FUNCTIONS

Air intake

room air is suctioned in here.

(Removes dust and dirt from the intake air.)

Disperses airflow up and down as well as adjusts the angle of air flow direction.

Filter Air intake grille

Air outletAir outlet

Swing louvers

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

Guide vane

● Indoor Unit

● Remote controller

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

repeatedly.

● 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.

241

The sets the ventilation fan speed.

button

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 / 3 / 4) PAR-JH150KA(1.6 / 2)

k 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

● 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.

241

display

The selected fan speed is displayed.

FILTER CHECK MODE TEST RUN

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.

j display

This indicates the air direction.

—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.

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.

Display

This lamp lights when electricity is supplied to the unit.

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 k button are pressed.This indicates that this room unit is not equipped with the fan direction adjustment function and the louver function.

FILTER

This display lights when the filter need to be cleaned.

display

Page 5

Item Function

Capacity Total input

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

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.

W 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-1.6FKHA

Cooling Heating

4,500 4,650(6,050)

15,350 15,900(20,600)

1.51

0.07

0.32

0.40

PKH-1.6FKHA

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>

1.4

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-1.6VKA

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

1.411.44

6.606.74

Munsell 5y 7/1

Capillary tube

Hermetic

RH247VFC

1.2

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>

53<117>

R-22

2.2<4.9>

9.52<3/8>

15.88<5/8> Flared Flared

Max. 40m Max. 40m

1.48(2.88)

0.07(1.47)

0.32(6.15)

0.40(6.23)

Fan

SPECIFICATIONS

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)

Input Running current

Starting current External finish Heat exchanger

Fan(drive) ✕ No.Fan

Fan motor output

Airflow(Low-High)

External static pressure 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)

Input

Running current

Staring current External finish Refrigerant control Compressor

Model

Motor output

Starter type

Protection devices Heat exchanger Fan

Fan(drive)✕No.

Fan motor output

Airflow Defrost method Noise level

Dimensions

Weight Refrigerant

Charge Pipe size O.D.

Connection method

Between the indoor & outdoor unit

REFRIGERANT PIPING

Note 1. Rating Conditions (JIS B 8616)

Cooling : Indoor : D.B. 27°C (80°F), W.B. 19°C (66°F) Heating : Indoor : D.B. 20°C (68°F)

Outdoor : D.B. 35°C (95°F), W.B. 24°C (75°F) Outdoor : D.B. 7°C (45°F), W.B. 6°C (43°F)

Gas Indoor side Outdoor side Height difference Piping length

D H

Liquid

Service Ref.

Cooling Heating

Btu/h

5,500 6,250(7,650)

18,800 21,300(26,100)

2.27

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

A A

0.07

0.32

0.40



/X<CFM>

Pa(mmAq)

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

kg<lbs>

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

A A

/X<CFM>

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

kg<lbs>

A<in.> A<in.>

Note 2. Above data based on indicated voltage

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

PKH-2FKHA

2.29(3.69)

PKH-2FKHA

0.07(1.47)

0.32(6.15)

0.40(6.23)

Munsell 3.4Y 7.7/0.8(White)

Plate fin coil

Line flow(direct) ✕ 1

0.030

10-13<353-459>

0(direct blow)

1.4

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

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>

R-22

2.2<4.9>

9.52<3/8>

15.88<5/8> Flared Flared

Max. 40m Max. 40m

2.222.20

9.959.86

Page 7

Item Function

Capacity

Total input

Service Ref.

Power supply(phase,cycle,voltage)

Input Running current

Starting current External finish Heat exchanger

Fan(drive) ✕ No.Fan

Fan motor output

Airflow(Low-High)

External static pressure Booster heater

INDOOR UNITOUTDOOR UNIT

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

Dimensions

Weight

Service Ref.

Power supply (phase, cycle, voltage)

Input

Running current

Staring current External finish Refrigerant control Compressor

Model

Motor output

Starter type

Protection devices Heat exchanger Fan

Fan(drive)✕No.

Fan motor output

Airflow Defrost method Noise level

Dimensions

Weight Refrigerant

Charge Pipe size O.D.

Connection method

Between the indoor & outdoor unit

REFRIGERANT PIPING

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)

Service Ref.

Btu/h

/X<CFM>

Pa(mmAq)

A<in.>

D H

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

kg<lbs>

/X<CFM>

D H

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

kg<lbs>

Liquid

Gas

A<in.> A<in.>

Indoor side Outdoor side Height difference Piping length

PKH-2.5FKHA

Cooling Heating

6,500 7,200(9,300)

22,200 24,600(31,700)

2.56

PKH-2.5FKHA

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

A A

0.095

0.44

0.80 Munsell 3.4Y 7.7/0.8(White)

Line flow(direct) ✕ 2

15-20<530-706>

Remote controller & built-in

1,400<55-1/8>

PUH-2.5VKA

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

A A

Munsell 5y 7/1

Internal thermostat, HP switch

Propeller (direct) ✕ 1

Reverse cycle

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

850<33-7/16>

Note 2. Above data based on indicated voltage

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

PKH-2.5FKHA

Plate fin coil

0.040

0(direct blow)

2.1

39-45

20<13/16>

235<9-1/4>

340<13-3/8>

26<57>

PUH-2.5VKA

Capillary tube

Hermetic

NH41VMD

2.0

Line start

Plate fin coil

0.085

50<1,764>

870(34-1/4)

64<150>

R-22

2.8<6.2>

9.52<3/8>

15.88<5/8> Flared Flared

Max. 50m Max. 50m

2.33(4.43)

0.095(2.195)

0.44(9.19)

0.80(9.55)

2.232.46

9.7810.68

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 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-3FKHA

Cooling Heating

7,900 9,100(11,200)

27,000 31,000(38,200)

3.25

0.095

0.44

0.80

PKH-3FKHA

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)

2.1

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-3VKA

/ PUH-3YKA2 PUH-3YKA3 PUH-3YKA

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>

R-22

3.2<7.1>

9.52<3/8>

15.88<5/8> Flared Flared

Max. 50m Max. 50m

3.04(5.14)

0.095(2.195)

0.44(9.19)

0.80(9.55)

Fan

Note 1. Rating Conditions (JIS B 8616)

Cooling : Indoor : D.B. 27°C (80°F), W.B. 19°C (66°F) Heating : Indoor : D.B. 20°C (68°F)

Outdoor : D.B. 35°C (95°F), W.B. 24°C (75°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 9

Item Function

Capacity

Total input

Service Ref.

Power supply(phase,cycle,voltage)

Input Running current

Starting current External finish Heat exchanger Fan

Fan(drive) ✕ No.

Fan motor output

Airflow(Low-High)

External static pressure Booster heater

INDOOR UNITOUTDOOR UNIT

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

Dimensions

Weight

Service Ref.

Power supply (phase, cycle, voltage)

Input

Running current

Staring current External finish Refrigerant control Compressor

Model

Motor output

Starter type

Protection devices Heat exchanger Fan

Fan(drive)✕No.

Fan motor output

Airflow Defrost method Noise level

Dimensions

Weight Refrigerant

Charge Pipe size O.D.

Connection method

Between the indoor & outdoor unit

REFRIGERANT PIPING

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)

Service Ref.

Btu/h

/X<CFM>

Pa(mmAq)

A<in.>

D H

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

kg<lbs>

/X<CFM>

D H

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

kg<lbs>

Liquid

Gas

A<in.> A<in.>

Indoor side Outdoor side Height difference Piping length

PKH-4FKHSA

Cooling Heating

9,500 10,700(13,100)

32,400 36,500(44,700)

3.31

PKH-4FKHSA

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

A A

0.114

0.53

0.90 Munsell 3.4Y 7.7/0.8(White)

Line flow(direct) ✕ 2

22-28<777-989>

Remote controller & built-in

1,680<66-1/8>

PUH-4YKSA

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

A A

Munsell 5Y 7/1

PUH-4YKSA

3:NH56YDA PUH-4YKSA4:NH56YE

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

Propeller (direct) ✕ 2

Reverse cycle

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

1,258<49-1/2>

Note 2. Above data based on indicated voltage

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

PKH-4FKHSA

Plate fin coil

0.070

0(direct blow)

2.4

41-46

20<13/16>

235<9-1/4>

340<13-3/8>

30<66>

PUH-4YKSA

Capillary tube

Hermetic

2.7

Line start

Plate fin coil

0.065+0.065 95<3,350>

870(34-1/4)

94<207>

R-22

4.2<9.2>

9.52<3/8>

19.05<3/4> Flared Flared

Max. 50m Max. 50m

3.30(5.70)

0.114(2.514)

0.53(10.53)

0.90(10.90)

3.193.20

5.225.24

Page 10

4 DATA

1. PERFORMANCE DATA

1) COOLING CAPACITY

Indoor

intake

air

W.B. ˚C

16 18

PKH-1.6FKHA

PKH-2FKHA3

PKH-2.5FKHA2 PKH-2.5FKHA3

PKH-3FKHA2 PKH-3FKHA3

PKH-4FKHSA2 PKH-4FKHSA3

Note CA : Capacity (W)

P.C. : Power consumption (kW)

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

CA 4,540 4,834 5,131 5,431 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

Outdoor intake air D.B. ˚C

CA 4,081 4,355 4,645 4,950 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.

1.46

1.49

1.53

1.56

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

20 25 30Service Ref.

P.C.

1.21

1.23

1.26

1.28

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

CA 4,415 4,706 5,010 5,327 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.

1.26

1.29

1.31

1.34

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

CA 4,253 4,535 4,831 5,142 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.

1.36

1.39

1.42

1.45

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

40 45

CA 3,899 4,167 4,451 4,750 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.

1.55

1.59

1.64

1.68

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

CA 3,706 3,970 4,249 4,543 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.

1.65

1.70

1.75

1.81

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

Cooling capacity correction factors

Service Ref.

PKH-1.6FKHA

PKH-2FKHA

PKH-2.5FKHA2 PKH-2.5FKHA3

PKH-3FKHA2 PKH-3FKHA3

PKH-4FKHSA2 PKH-4FKHSA3

5m 10m 15m 20m 25m 30m 35m 40m 45m 50m

1.00

0.093

0.992

0.989

0.981

0.989

0.984

0.983

0.980

0.968

0.980

Refrigerant piping length(one way)

0.978

0.970

0.952

0.970

0.969

0.966

0.960

0.940

0.960

0.961

0.959

0.950

0.925

0.950

0.956

0.950

0.940

0.913

0.940

0.948

0.945

0.930

0.900

0.930

0.920

0.886

0.920

0.910

0.874

0.910

Page 11

2) HEATING CAPACITY

Indoor

intake

air

W.B. ˚C

15 20

PKH-1.6FKHA

25 15

PKH-2FKHA3

20 25 15

PKH-2.5FKHA2 PKH-2.5FKHA3

20 25 15

PKH-3FKHA2 PKH-3FKHA3

20 25 15

PKH-4FKHSA2 PKH-4FKHSA3

Note CA : Capacity (W)

P.C. : Power consumption (kW)

20 25

CA 3,184 3,049 2,930 4,280 4,098 3,939 4,931 4,721 4,537 6,232 5,967 5,735 7,328 7,016 6,743

Outdoor intake air D.B. ˚C

CA 4,714 4,538 4,370 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.

1.35

1.45

1.56

2.09

2.25

2.41

2.12

2.29

2.45

2.77

2.99

3.20

3.01

3.24

3.47

-10 -5 0Service Ref. P.C.

1.01

1.09

1.15

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 3,650 3,506 3,364 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.

1.12

1.20

1.28

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 4,160 4,003 3,844 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.

1.23

1.32

1.42

1.90

2.05

2.19

1.93

2.09

2.23

2.52

2.72

2.91

2.74

2.95

3.16

10 15

CA 5,312 5,112 4,942 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.

1.48

1.59

1.70

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 5,952 5,724 5,560 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.

1.61

1.73

1.86

2.49

2.68

2.87

2.53

2.73

2.92

3.30

3.56

3.82

3.59

3.86

4.14

Heating capacity correction factors

Service Ref.

PKH-1.6FKHA

PKH-2FKHA

PKH-2.5FKHA2 PKH-2.5FKHA3

PKH-3FKHA2 PKH-3FKHA3

PKH-4FKHSA2 PKH-4FKHSA3

5m 10m 15m 20m 25m 30m 35m 40m 45m 50m

1.00

Refrigerant piping length(one way)

1.00

0.998

0.995

0.993

0.990

Page 12

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.(°C)

TOTAL INPUT (RATIO) CAPACITY (RATIO)

INDOOR W.B.(°C)

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.(°C)

INDOOR D.B.(°C)

15 20 25

25 20 15

TOTAL INPUT (RATIO) CAPACITY (RATIO)

HeatingCooling

3. ELECTRICAL DATA

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

Heat

1.39

0.07

0.32

0.40

1.32

6.59 30

PKH-2FKHA

PUH-2VKA3

Cool

5,400

2.19

0.07

0.32

0.40

2.12

9.83 43

Service Ref.

Mode Capacity(W) Total Input(kW)

Outdoor unit Indoor unit

Indoor unit

Outdoor unit

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

PKH-1.6FKHA3

PUH-1.6VKA2 PUH-2VKA2 PUH-2.5VKA2 PUH-3VKA2 PUH-1.6VKA3

Cool

4,400

4,550

(5,750)

1.43

(2.59)

0.07

(1.27)

0.32

(5.77)

0.40

(5.85)

1.36

6.79 30

Heat

6,150

(7,350)

2.21

(3.41)

0.07

(1.27)

0.32

(5.77)

0.40

(5.85)

2.14

9.93 43

PKH-2.5FKHA2

PKH-2.5FKHA3

PUH-2.5VKA3 PUH-3VKA3

Cool

6,400

2.51

0.095

0.440

0.70

2.41

11.18 52

Heat

7,100

(8,900)

2.26

(4.06)

0.095

(1.895)

0.440

(8.620)

0.70

(8.88)

2.16

10.02 52

Cool

7,800

3.23

0.095

0.440

0.70

3.13

14.67 54

PKH-3FKHA2 PKH-3FKHA3

PUH-3YKA2 PUH-3YKA3 PUH-3YKA4

Cool

7,800

3.23

0.095

0.440

0.70

3.13

5.23 34

Heat

9,000

(10,800)

3.02

(4.82)

0.095

(1.895)

0.440

(8.620)

0.70

(8.88)

2.92

13.68

Heat

9,000

(10,800)

3.02

(4.82)

0.095

(1.895)

0.440

(8.620)

0.70

(8.88)

2.92

4.88 34

PKH-4FKHSA2 PKH-4FKHSA3

PUH-4YKSA3 PUH-4YKSA4

Cool

9,400

3.28

0.11

0.530

0.80

3.17

5.29 37

Heat

10,500

(12,500)

3.27

(5.27)

0.114

(2.114)

0.530

(9.620)

0.80

(9.89)

3.16

5.28 37

Page 13

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

Indoor unit

Service Ref.

Outdoor unit

Mode Capacity(W) Total Input(kW)

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

Outdoor unit Indoor unit

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

Indoor unit

Service Ref.

Outdoor unit

Mode Capacity(W) Total Input(kW)

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

PKH-1.6FKHA3

PUH-1.6VKA2 PUH-2VKA2 PUH-2.5VKA2 PUH-3VKA2 PUH-1.6VKA3

Cool

1.47

0.40

1.40

6.76 32

1.51

0.40

1.44

4,600

(5,900)

(2.73)

0.070

(1.370)

0.320

(5.970)

(6.05)

4,650

(6,050)

(2.88)

0.070

(1.470)

0.320 (6.15)

(6.23)

4,450

0.070

0.320

PKH-1.6FKHA3

PUH-1.6VKA2 PUH-2VKA2 PUH-2.5VKA2 PUH-3VKA2 PUH-1.6VKA3

Cool

4,500

0.070

0.320

Heat

1.43

0.40

1.36

6.57 32

Heat

1.48

0.40

1.41

PKH-2FKHA3

PUH-2VKA3

Cool

5,450

(7,500)

2.23

0.070

(1.370)

0.320

(5.970)

0.40

2.16

9.78 44

PKH-2FKHA3

PUH-2VKA3

Cool

5,500

(7,650)

2.27

0.070

(1.470)

0.320

0.40

2.20

Heat

6,200

2.25

(3.55)

0.070

0.320

0.40

(6.05)

2.18

9.87 44

Heat

6,250

2.29

(3.69)

0.070

0.320 (6.15)

0.40

(6.23)

2.22

PKH-2.5FKHA2 PKH-2.5FKHA3

PUH-2.5VKA3 PUH-3VKA3

Heat

7,150

(9,050)

2.30

(4.20)

0.095

(1.995)

0.440 (8.70)

0.80

(9.50)

2.20

9.86 52

Heat

7,200

(9,300)

2.33

(4.43)

0.095

(2.195)

0.440 (9.19)

0.80

(9.55)

2.23

7,850

0.095

0.440

14.22

7,900

0.095

0.440

Cool

6,450

2.54

0.095

0.440

0.80

2.44

10.94

PKH-2.5FKHA2 PKH-2.5FKHA3

PUH-2.5VKA3 PUH-3VKA3

Cool

6,500

2.56

0.095

0.440

0.80

2.46

Cool

3.24

0.80

3.14

Cool

3.25

0.80

3.15

PKH-3FKHA2 PKH-3FKHA3

Heat

9,050

(10,950)

3.03

(4.93)

0.095

(1.995)

0.440

(8.70)

0.80

(9.50)

2.93

13.27 56

PKH-3FKHA2 PKH-3FKHA3

Heat

9,100

(11,200)

3.04

(5.14)

0.095

(2.195)

0.440

(9.19)

0.80

(9.55)

2.94

PUH-3YKA2 PUH-3YKA3 PUH-3YKA4

Cool

7,850

3.24

0.095

0.440

0.80

3.14

5.21

PUH-3YKA2 PUH-3YKA3 PUH-3YKA4

Cool

7,900

3.25

0.095

0.440

0.80

3.15

Heat

9,050

(10,950)

3.03

(4.93)

0.095

(1.995)

0.440

(8.70)

0.80

(9.50)

2.93

4.86 36

Heat

9,100

(11,200)

3.04

(5.14)

0.095

(2.195)

0.440

(9.19)

0.80

(9.55)

2.94

PKH-4FKHSA2 PKH-4FKHSA3

PUH-4YKSA3 PUH-4YKSA4

Cool

9,450

3.30

0.114

0.530

0.90

3.19

5.23

PKH-4FKHSA2 PKH-4FKHSA3

PUH-4YKSA3 PUH-4YKSA4

Cool

9,500

3.31

0.114

0.530

0.90

3.20

Heat

10,600 (12,800)

3.29

(5.49)

0.114

(2.314)

0.530

(10.10)

0.90

(10.47)

3.18

5.22 39

Heat

10,700 (13,100)

3.30

(5.70)

0.11

(2.514)

0.53

(10.53)

0.90

(10.90)

3.19

Current(A) Starting current(A)

Outdoor unit Indoor unit

6.74 33

6.60 33

9.86 45

9.95 45

10.68 52

9.78 52

13.82 58

12.89 58

5.16 37

4.81 37

5.24 40

5.22 40

Page 14

4. STANDARD OPERATION DATA

Service Ref.

Mode

PKH-1.6FKHA

Cooling Heating

PKH-2FKHA3

Cooling Heating

PKH-2.5FKHA2 PKH-2.5FKHA3

Cooling Heating

PKH-3FKHA2 PKH-3FKHA3

Cooling Heating

PKH-4FKHSA2 PKH-4FKHSA3

Cooling Heating 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

MPa

(

kg/cm MPa

(

kg/cm

˚C ˚C ˚C

4,500

PKH-1.6FKHA3

0.320 0.320

PUH-1.6VKA

1.51

1,50

240

4,650

1.48

5,500

2.27

PKH-2FKHA3

1,50

240

0.320 0.320

PUH-2VKA

6,250

2.29

6,500

2.56

PKH-2.5FKHA2 PKH-2.5FKHA3

1,50

240

0.440 0.440

PUH-2.5VKA

7,200

2.33

7,900

3.25

0.440 0.440

PUH-3VKA

9,100

PKH-3FKHA2 PKH-3FKHA3

PUH-1.6VKA3 PUH-2VKA3 PUH-2.5VKA3 PUH-3VKA3

1,50

240

6.74 6.60

1.74

)

(

)

17.7

0.52

)

(

)

5.3 77 78

47 47

8 1

1.72

(

17.5

0.41

(

4.18

) )

1,50

240

9.86 9.95

1.87

(

19.1

0.42

(

4.28

1.99

)

(

20.3

0.36

)

(

3.67

86 90 51 53

2 -2

1,50

240

10.68 9.78

2.00

)

(

)

20.4

0.52

)

(

)

5.3 85 74

53 44

7 -3

1.62

(

16.5

0.36

(

3.67

1,50

240

13.82 12.89

2.07

)

(

)

21.1

0.45

)

(

)

4.59 90 86

53 52

6 -2

( (

3.04

1,50

1.96

20.0

0.37

37.7

7,900

3.25

240

0.440 0.440

PUH-3YKA PUH-3YKA3 PUH-3YKA4

3,50

415

5.16 4.81

2.07

)

(

)

21.1

0.45

)

(

)

4.59 90 86

53 52

6 -2

9,100

3.04

1.96

(

20.0

0.35

(

3.57

9,500

3.31

PKH-4FKHSA2 PKH-4FKHSA3

0.530 0.530

PUH-4YKSA PUH-4YKSA4

5.24 5.22

1.80

)

(

18.4

0.51

)

(

)

5.2 79 76

49 46

8 -1

1,50

240

3,50

415

)

10,700

3.30

1.69

(

17.2

0.37

(

37.7

) )

D.B.

W.B.

D.B. D.B.

W.B.

m ˚C ˚C ˚C ˚C ˚C

5 5 27 20 19 15

14.6 38.9 35 7 24 6

0.77

0.17

5 5 27 20 19 15

13.0 44.3 35 7 24 6

0.71

0.15

5 5 27 20 19 15

14.5 37.9 35 7 24 6

0.83

0.11

5 5 27 20 19 15

13.2 43.4 35 7 24 6

0.74

0.12

5 5 27 20 19 15

13.2 43.4 35 7 24 6

0.74

0.12

5 5 27 20 19 15

14.3 40.4 35 7 24 6

0.80

0.11

Ref.pipe length

Intake air temperature

Discharge air

Indoor side Refrigetrant circuit Electrical circuit Total

temperature

Intake air temperature

side

Outdoor

SHF

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)

5. OUTLET AIR SPEED AND COVERAGE RANGE

PKH-3FKHA PKH-3FKHA3

12.4

Air flow m3/ Air speed m/

min

sec

Coverage range m (ft)

PKH-1.6FKHA3

4.0

9.1

PKH-2FKHA

4.0

9.1

PKH-2.5FKHA

PKH-2.5FKHA3

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.

4.9

PKH-4FKHSA PKH-4FKHSA3

5.4

15.3

Page 15

Pipe position

Left side

Liquid 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 center

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

491

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-1.6FKHA3 PKH-2FKHA3

Unit : mm

Page 16

PKH-2.5FKHA2 , PKH-2.5FKHA3 PKH-3FKHA2 , PKH-3FKHA3

Gas pipe

Terminal block for power supply

Terminal block for remote controller

Unit : mm

Top

62.5

235 45

235

Knock out hole for right piping

Refrigerant pipe. Drain pipe

235

Right side

Front

1400

Air intake

1090

Left side

Bolt

197

Terminal block for control

Liquid pipe

Drain hose

58 42

107

111

(Gas pipe)

(Liquid pipe)

120

183

Drain hose

1110

Liquid pipe 9.52(3/8F)

Gas pipe 15.88(5/8F)

240

Air outlet

552

Lower side

Auto vane

1120

Air outlet

Change vane (manual)

Knock out hole for under-piping

Refrigerant pipe. Drain pipe

552

Under panel

Removable at left-hand

side piping

280

18430

Rear piping opening

340

2980

3030 10

245

285

455

990

10 91=(910)

Drainage range

on right-hand side

900

Drainage range

on left-hand side

18 18

610

Range for left rear piping opening

180

240 280 314

12-ø6 hole for

tapping screw

225

Drain hose for

Knock out hole for

left piping

left-hand side piping

100

Unit center

Knock out hole for piping

A B C

4 39

Wall fixture

100

66-ø6 hole for

tapping screw

32-ø12 hole for bolt

Page 17

PKH-4FKHSA2 , PKH-4FKHSA3

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

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

Unit : mm

Page 18

130

Rear side wiring arrangement opening.

120

FILTER CHECK MODE TEST RUN

FILTER

CHECK MODE

TEST RUN

83.5

SW18

SW17

CAUTION

2. REMOTE CONTROLLER

Unit : mm(inch)

Page 19

SYMBOL C CN1 <R.B> CN2 <R.B> CN2L <I.B> CN51 <I.B> FAN2 F1 <I.B> FS1,2 H I.B LED1 <I.B> LED2 <I.B> LS MF MV R.B RT1

NAME FAN MOTOR CAPACITOR PROGRAM TIMER CONNECTOR REMOTE SWITCH CONNECTOR LOSSNAY CONNECTOR CENTRALLY CONTROL CONNECTOR EMERGENCY OPERATION CONNECTOR FUSE (6.3A 250V) THERMAL FUSE (121:/10A) HEATER INDOOR CONTROLLER BOARD DC 12V POWER LED DC 5V POWER LED LIMIT SWITCH FAN MOTOR VANE MOTOR REMOTE CONTROLLER BOARD ROOM TEMPERATURE THERMISTOR (0:/15".25:/5.4"DETECT)

SYMBOL 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 ✕4 <I.B>

ZNR 26H 88H

NAME PIPE TEMPERATURE THERMISTOR (0:/15".25:/5.4"DETECT) MODE SELECTOR ADDRESS SELECTOR EMERGENCY OPERATION SWITCH MODEL SELECTOR MODEL SELECTOR ADDRESS SELECTOR FUNCTION SELECTOR TRANSFORMER POWER SUPPLY TERMINAL BLOCK INDOOR/OUTDOOR CONNECTING WIRE TERMINAL BLOCK REMOTE CONTROLLER TRANSMISSION LINE TERMINAL BLOCK FAN MOTOR RELAY VARISTOR HEATER THERMAL SWITCH HEATER CONTACTOR

WIRING DIAGRAM

PKH-1.6FKHA3 , PKH-2FKHA3

I.B

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

WHT

RED

FAN1

FAN2

1 3 5

SW2

ON OFF

123456101234

BLK

SW5

L N

WHT

CN6V

VANE

ZNR

1234

SW6

RED

BLU

CND

POWER

SW3

SW7

ON OFF

123

SW1

123456789

RED RED

TB2

RED BLU

GRN/YLW

WHT

88H

240V 230V 220V

RED

YLW

ORN

YLW

CNT

TRANS

LED1 12V POWER

HEATER

CN24

BLU

LED2 5V POWER

CENTRALLY

CONTROL

FS2

FS1

11.1VAC

14.2VAC

REMOCON

POWER

CN40

CN51

RED

4 2 13

CN21

PIPE

CN20

INTAKE

RED

21 1 13 3

LOSSNAY

CN2L

BRN

CN24

HEATER

GRN/YLW

BRN

CN4T

TRANS

REMOCON

CN22

OUTDOOR

CN30

1 12 2

CN23

VANE

I.B

L N

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

TB2

2FKHA1.6FKHAMODELS

SW7

OFF

TRANSMISSION WIRES DC12V

TB5

BLU

12 3

2 1

BLU

BRN ORN YLW

TB4

TO OUTDOOR UNIT

CONNECTING WIRES

DC12V

R.B

RT2 RT1

2 1

GRY

88H

BRN YLW

1 2

GRY

ON OFF

SW18

OFF ON

4321

SW17

OFF ON

87654321

26H

123123

TB6

45 23 1

3 2 1

A01 B02

CN1

CN2

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

w1.

230V 220V

SW5

ON OFF

240V

230V

220V

2 3 4

YELLOW ORANGE RED

ON OFF

2 3 4

w2.

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.

(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. (3)During emergency operation indoor fan runs at high speed but automatic vane remains stop. (4)Thermostat will mot 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 every operation, set all dip switches (SW3<I.B>) to OFF.

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

Page 20

PKH-2.5FKHA2 , PKH-3FKHA2 , PKH-4FKHSA2

CN2

OFF

4321

SW18

LED1 12V POWER

L N

GRN/YLW

SW7

CN51

CENTRALLY

CONTROL

LED2 5V POWER

I.B

YLW

BRN

GRY

26H

1 2

88H

HEATER

CN24

GRN/YLW

BLU

RED

TB2

FS2

RED RED

BLU

1 2

88H

FS1

ON OFF

TRANSMISSION WIRES DC12V

TB6

A01 B02

OFF

R.B

45 23 1

CN1

3 2 1

87654321

SW17

HEATER

CN24

REMOCON

POWER

CN40

4 2 13

SW2

ON OFF

123456

SW6

1234

109654

1234

SW7 SW3

ON OFF

REMOCON

CN22

OFF

1234 1234

PKH-4

PKH-2.5,3

MODELS

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

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

BRN

TB5

BLU BLU

TB4

ORN YLW

BRN

RED

220V

14.3VAC

10VAC

230V

240V

BLU

YLW

WHT

RED

YLW

ORN

RED

SYMBOL C CN1 <R.B> CN2 <R.B> CN2L <I.B> CN27 <I.B> CN51 <I.B> F1.2 <I.B> FS1.2 H I.B J1 J5 J9 LED1 <I.B> LED2 <I.B> MF MV R.B

NAME FAN MOTOR CAPACITOR PROGRAM TIMER CONNECTOR REMOTE SWITCH CONNECTOR LOSSNAY CONNECTOR DRAIN LIFT-UP MECHANISM CONNECTOR CENTRALLY CONTROL CONNECTOR FUSE (6.3A 250V) THERMAL FUSE <117:/PKH-2.5,3:10A PKH-4:16A> HEATER INDOOR CONTROLLER BOARD MODE SELECTOR JUMPER RESISTORS MODE SELECTOR JUMPER RESISTORS MODE SELECTOR JUMPER RESISTORS DC 12V POWER LED DC 5V POWER LED FAN MOTOR VANE MOTOR REMOTE CONTROLLER BOARD

SYMBOL RT1

RT2 SW2 <I.B>

SW3 <I.B> SW6 <I.B> SW7 <I.B> SW17 <R.B> SW18 <R.B> T TB2 TB4 TB5.6

✕4 <I.B> ZNR 26H 88H

NAME ROOM TEMPERATURE THERMISTOR (0:/15".25:/5.4"DETECT) PIPE TEMPERATURE THERMISTOR (0:/15".25:/5.4"DETECT) ADDRESS SELECTOR EMERGENCY OPERATION SWITCH MODEL SELECTOR MODEL SELECTOR ADDRESS SELECTOR FUNCTION SELECTOR TRANSFORMER POWER SUPPLY TERMINAL BLOCK INDOOR/OUTDOOR CONNECTING WIRE TERMINAL BLOCK REMOTE CONTROLLER TRANSMISSION LINE TERMINAL BLOCK FAN MOTOR RELAY VARISTOR HEATER THERMAL SWITCH HEATER CONTACTOR

PKH-2.5FKHA3 , PKH-3FKHA3 , PKH-4FKHSA3

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

w 1.

230V

220V

SW7

ON OFF

240V 230V 220V

2 3 4

YELLOW ORANGE RED

ON OFF

2 3 4

w 2.

Page 21

Indoor heat exchanger

Indoor unit

Refrigerant pipe (option)

19.15mm( 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-1.6FKHA3 / PUH-1.6VKA2 , PUH-1.6VKA3 PKH-2FKHA3 / PUH-2VKA2 , PUH-2VKA3 PKH-2.5FKHA2 , PKH-2.5FKHA3 / PUH-2.5VKA2 , PUH-2.5VKA3 PKH-3FKHA2 , PKH-3FKHA3 / PUH-3VKA2 , PUH-3VKA3

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

Oil separator

4-way valve

Service port

Compressor

PUH-1.6 (O.D.3.2 I.D.1.8 L400) 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)

Indoor unit

Indoor heat exchanger

Pipe temperature thermistor (RT2)

Distributor with strainer

PKH-1.6 (O.D.3.2 I.D.1.6 L700) PKH-2 (O.D.3.2 I.D.1.6 L300)

Restrictor valve

Capillary tube

Refrigerant pipe

(option)

15.88mm( 5/8")

(with heat insulator)

Flexible tube

Strainer

Flared connection

Refrigerant pipe

(option)

9.52mm( 3/8")

(with heat insulator)

PKH-2.5 (O.D.3.2 I.D.1.8 L430) PKH-3 (O.D.4.0 I.D.2.0 L500)

Ball valve Strainer

Service port

Accumulator

Ball valve (with Service port)

High pressure control switch

Outdoor unit

Outdoor heat exchanger

Bypass valve

Restrictor valve

Strainer

Unit : mm

Outdoor coil thermistor (TH)

Capillary tube

PKH-4FKHSA2 , PKH-4FKHSA3 / PUH-4YKSA3 , PUH-4YKSA4

Page 22

OPERATION FLOW-CHART

MAIN OPERATION

START

Power circuit

breaker

YES

Check SW

ON twice

Operation SW

“OFF” timer

“ON” timer

YES

Set time

complete

NO NO

STOP

PROTECTION DEVICE SELF HOLD RELEASE

Remote controller indicator lamp OFF

Indoor side

Fan STOP

Auxiliary heater OFF

YES

Set time

complete

YES

Trouble

YES

Trouble STOP

PROTECTION DEVICE

SELF HOLD

Remote controller trouble display

Remote controller operation display

Operating mode

(COOL)

Operating mode

(DRY)

Operating mode

(HEAT)

Operating mode

(FAN)

Auto COOL/HEAT

operation

YES

COOL operation

DRY operation

HEAT operation

FAN operation

Outdoor side

Compressor OFF

Fan STOP

Four-way valve OFF

w 1 In addition, the centralized and remote control can be operated. w 2 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 over flow

● P6=Coil frost/overheat protection

● P7=System error

● P8=Outdoor unit trouble

w 3 The CHECK switch will show if an error has occurred in the past. w 4 Fan runs on low speed for 1 minute in order to remove overheat air. w 5 The 3-minute (6 minutes … heating mode) time-delay functions after compressor stops. w 6 FAN or AUTO mode is selected by the indoor dip switch setting. w 7 In FAN mode, fan speed and vane operation depend on the remote controller setting. (Compressor is OFF.)

Page 23

COOLING OPERATION

COOL operation

Four-way valve/OFF

Vane setting notch

Initial

COOLING

60 deg downward angle 70 deg downward angle

Vane horizontal

Vane initial

setting

Vane

Fan speed

LOW

Downward discharge

1 hour

airflow

Compressor

thermostat

Allowance

cancel

YES

w11

YES

3-minute

time delay

6-minute

time delay

3-minute

compressor

operation

w10

Coil frost

prevention

Cooling area

YES

Allowance

period

6 minute

time delay

Allowance set

YES

Coil frost protection

YES

10-minute

compressor

Allowance cancel

compressor

temperature is

Compressor ON

operation

YES

Coil frost

protection

NO 16-minute operation

YES Indoor pipe 1°C or lower

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

LOW 5 min.

LOW

elapse

YES

Outdoor unit

trouble

w 8 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.

w 9 When operating TEST RUN, the thermostat will be continuously ON. w10 After 3 minute compressor operation, if the indoor coil thermistor reads -15°C or below for 3 minutes, the compressor will

stop for 6 minutes.

w11 Cooling 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 24

HEATING OPERATION

Heat operation

Initial

HEATING

YES

Defrosting

Hot adjust in process

Compressor

thermostat ON

Indoor piping

YES

trouble

w15

YES

Compressor ON

3 min. restart

prevention

6 min. restart

prevention

Hot adjust start

FAN SPEED

Very low

Vane setting notch

Vane initial setting

Four-way valve ON

Compressor ON

Allowance cancel

-15°C or lower

Outdoor unit

FAN SPEED

Very low airflow

Compressor OFF

10-minute

compressor

operation

Allowance cancel

w11

Heating

FAN STOP

w11

Airflow area

20 min. elapse

YES

Airflow area Heating area

w11

Airflow area

Cooling area

Defrost operation

START

Four-way valve

area

OFF

YES

w10

YES

w11

Heating area

Defrost

30 min. elapse

Outdoor unit

trouble

Outdoor unit

trouble

YES

Auxiliary heater

Overheat remote

Overload protect

Defrost release

Indoor piping

55°C or lower

YES

Indoor piping

60°C or higher YES

OFF

START

Indoor unit

70°C or higher

YES

Allowance

period

YES

Auxiliary heater

6-minute restart

Allowance set

Compressor OFF

thermostat ON

YES

prevention

YES

Indoor piping

35°C or higher

HOT adjust

6 min. elapse

FAN SPEED Low

FAN SPEED

Low 2 min.

FAN SPEED setting notch

Hot adjust

release

elapse

Auxiliary heater

Indoor coil

thermistor is 60°C

FAN speed

Low notch

Airflow 10% up

YES

PKH-FK

Type

3-minute

OFF

or higher

YES

FAN setting notch

Auto COOL/HEAT

operation

Initial mode

YES

1 T0

COOL mode

1 { (T0 - 2)

YES

After 15min.

1 { (T0-2)

w16

YES

w17

COOL mode HEAT mode

COOL operation HEAT operation

T1 ] (T0 + 2)

YES

After 15min.

T1 ] (T0 + 2)

HEAT operation

1 1

YES

Cool mode set

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

(@) While defrosting (FAN STOP) (#) When thermostat is OFF In the case of(!), (@) and (#) 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 25

DRY OPERATION

DRY

operation

Four-way valve / OFF

Vane

setting notch

YES

Initial dry

operation

YES

Vane initial setting

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

w 8 ~ 9 Refer to page 23. w 12 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.

w 13 Compressor ON time is decided by room temperature. Refer to page 32. w 14 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

10-minute

compressor

OFF

YES

Compressor ON

time set

Compressor ON

Fan speed LOW

Page 26

FILTER CHECK MODE TEST RUN

241

MICROPROCESSOR CONTROL

1. OUTLINE OF MICROPROCESSOR CONTROL

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 switching.

● TEST RUN switching.

● CHECK mode switching.

(Self diagnostic trouble shooting)

Indoor unit

REMOTE CONTROLLER

● Processes and transmits orders.

Non-polar, two-wire cable

12VDC

OUTPUT to remote controller

Remote controller

● LCD indicator

maximum length 500 meters Signal

INPUT from indoor unit

● Room temperature thermistor (RT1)

● Pipe temperature thermistor (RT2)

OUTPUT to indoor unit

● Auto vane’s angle setting.

● Booster heater ON-OFF Control.

● 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

INDOOR CONTROLLER BOARD

● 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 27

Minimum 3 minutes w1

Thermostat

Indoor fan

Auto vane

Booster heater

Compressor

LOW or HIGH

Initially 10 degrees

(Changeable by remote controller setting)

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.

FILTER CHECK MODE TEST RUN

241

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 rise 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 cut J1-5) on indoor controller board, the start temperature of

coil frost prevention changes 1°C to -3°C.

5 Coil frost protection

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.

Page 28

(2) Indoor fan control

5 minutes

SET

LOW

1 2 1 3

5 minutes

SET

LOW

OFF

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.

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.

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

Page 29

(3) Auto vane control

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

controller.

(a) Stop mode (fixed operation) ( i ) At start-up of COOLoperation, the auto vane is set to 10 degrees airflow direction. (ii ) Discharge direction can be changed with button.

1 Fan speed : LOW

10° 60°

2 Fan speed : HIGH

10°

(b) SWING mode (Only PKH-2.5FKHA

(Only PKH-2.5FKHA3, PKH-3FKHA3, PKH-4FKHSA3)

( i ) 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°

30°

2, PKH-3FKHA2, PKH-4FKHSA2)

60°

AUTO

RETURN

60°

70°

AUTO

RETURN

70°

(SWING)

2 Fan speed : HIGH

10°

When 60 degrees or 70 degrees airflow is selected with the LOW fan speed in COOL operation, “ 1Hr ” will appear below the

temperature display. One hour later, the airflow direction returns to 10 degrees automatically and “ 1Hr ” will disappear. If the airflow direction is set to 10 degrees during “ 1Hr ” indication, the time counting for 1Hr is cancelled.

30°

60°

70°

Page 30

<Auto vane drive> (PKH-1.6FKHA3, PKH-2FKHA3) (a) The auto vane is driven by a 2.5 rpm motor. (b) Airflow direction can be selected between the No.1 and No.2 setting. (Initial setting is No.1)

10°

Airflow direction change

Downward C → Horizontal 4→

Horizontal → Downward A1→

Downward A→ Horizontal B 2→

Horizontal B → Downward C 3→

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

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

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

Remote controller indication continues.

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.

<Auto vane drive> (PKH-2.5FKHA

(PKH-2.5FKHA3, PKH-3FKHA3, PKH-4FKHSA3) (a) The vane is driven by DC12V motor. (b) Airflow 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 Airflow. (d) The speed of the auto vane drive for both open and close are setted at 200 pulse/sec. (e) Method of driving the auto vane.

Detecting the standard position:

Output 1600 pulse to the opening direction.

Position setting:Output the number of pulse indicated no below chart to the closing direction.

30°

2, PKH-3FKHA2, PKH-4FKHSA2)

60°

Rise 2.1

70°

50Hz

0.65

6.7

0.65

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)

RANGE A

RANGE B

1600

680 578 283

-5 RANGE C

Page 31

(5) Drain pump control

Minimum 3 minutes w1

Thermostat

Indoor fan

Auto vane

Booster heater

Compressor

(

PKH-2.5/3/4

)

wRefer to

page 32

for PKH-1.6/2

Initially 10 degrees discharge

(

Changeable by remote controller setting

)

LOW speedLOW speed

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 TEST RUN

241

The drain pump works in COOL or DRY operation. When operation stops or changes to HEAT mode, the drain pump continues to operate for 3 more minutes. The drain pump does not work in check mode.

When both the drain pump and unit are operating, the drain sensor detects the temperature. This temperature tells whether the drain water level is above or under the drain sensor. If the drain water level rises above the drain sensor due to a drain pump malfunction, the unit will stop operating in order to prevent drain from overflowing. The check code “P5” on the remote controller will display this occurrence. When both of the following conditions are satisfied, the drain sensor is determined to be under water.

● Though the drain sensor has been heated by the drain sensor heater for more than 40 seconds, its temperature rise is less than 20 degrees.

● The drain sensor temperature is below 63°C.

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 DRY 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 32

(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 frost protection in DRY operation is the same as in COOL operation. 6Coil frost prevention frost prevention does not operate in DRY operation.

(2) Indoor fan control

<PKH-2.5FKHA <PKH-2.5FKHA3, PKH-3FKHA3, PKH-4FKHSA3> 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-1.6FKHA3, PKH-2FKHA3> (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.

2, PKH-3FKHA2, PKH-4FKHSA2>

Indoor coil temperature

Below -10°C

-10 to 0°C

Above 0°C

Fan operation LOW speed EXTRA-LOW speed Dry mode

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

ately.

(3) Auto vane & drain pump controls

Same as in COOL operation

(4) Detecting abnormalities in the outdoor unit

Page 33

Minimum 3 minutes w2

Thermostat

Indoor fan

Auto vane

Booster heater

Compressor

Power ON lamp

STAND BY lamp

LOW or HIGHLOW or HIGH

OFF

ON OFF

Extra LOW w1Extra LOW w1

Hot adjustment

10°

10° Close

From POWER ON until

warm begins to blow

Hot adjustment

Depends on remote controller setting

w1 Changeable by indoor dip switch SW1-7 and SW1-8. (

PKH-2.5/3/4 for

J1-7,J1-8)

OFF during thermostat OFF hot adjustment defrosting

LOW

Operation starts by POWER button ON.

Operation stops by POWER button OFF.

Room temperature becomes equal to set temperature.

Room temperature falls below set temperature.

2-3 HEAT operation <How to operate>

FILTER CHECK MODE TEST RUN

241

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 Heating 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.

g ”.

2 Even if the room temperature rise above the set temperature during this period, the compressor will not start until this period has ended.

(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.

Page 34

(2) Indoor fan control

(a) Normal control

(

!)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.

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

(3) Auto vane control

(a) STOP mode (fixed operation)

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

(only for PKH-2.5FKHA2, 3FKHA2, 4FKHSA2 ) (only for PKH-2.5FKHA3, 3FKHA3, 4FKHSA3)

10°

In the following cases, airflow 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-2.5FKHA

(Only for PKH-2.5FKHA3, PKH-3FKHA3, PKH-4FKHSA3)

(!) 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

30° 60°

2, PKH-3FKHA2, PKH-4FKHSA2)

70°

(SWING)

Page 35

(4) Booster heater control

When the room temperature is 3 degrees below the set temperature, the booster heater will turn ON. When the room temperature is equal to the set temperature, booster heater will turn OFF. During the hot adjustment, the booster heater will not work.

When the indoor coil thermistor rises to 60°C or above, the booster heater cannot work. When the indoor coil thermistor falls to 55°C or below, the booster heater can work.

(5) 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.

(6) Indoor coil thermistor abnormality detection

An abnoirmalidty 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.

(7) 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 and the booster heater stop.

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 36

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+1 To To-1

To-2

Start

HEAT mode HEAT mode

Mode change

15 minutes

Mininum 3 minutes

COOL mode

(COOL HEAT)

ON OFF

-9 0 10 20

30 40 46

-8.5

Cooling range

(Outside air temperature)

Heating range

-5

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

FILTER CHECK MODE TEST RUN

241

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 Auto 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 COOL or 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

below the set temperature.

(3) Temperature range

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

Page 37

10˚

30˚

60˚

70˚

Swing

Changes by pressing the button.

FILTER CHECK MODE TEST RUN

241

2-5 Auto vane control

To change the airflow 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 airflow in COOL mode, the direction automatically changes to 10°.

(1) COOL/DRY operation

At the start-up of COOL or DRY operation, the airflow direction in automatically set to 10°. After, it can be changed to another direction with button on the remote controller.

When 60° or 70° airflow 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 38

OFF

2-6 TIMER operation

FILTER CHECK MODE TEST RUN

241

FILTER CHECK MODE TEST RUN

241

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

TEST RUN button

TEST RUN

Indoor coil temperature code

Display

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

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 ,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 blow out.)

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

properly.

Check the operation of outdoor unit fans.This unit controls the rota-

tion speed and performance capacity of fans.ln 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.

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 2 hours. The unit will automatically turn off after 2 hours.

Page 39

(1) Indoor coil temperature code

Code

Indoor coil

temperature

Indoor coil

temperature

Thermistor

abnormality

Code

-40~1˚C 9

~45˚C

~10˚C ~15˚C ~20˚C ~25˚C ~30˚C

~90˚C

~35˚C ~40˚C

10 11 12 13 14 15

~50˚C

~55˚C

~60˚C

~70˚C



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

Microcessor 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 40

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-05SLB

2-E)

Mr. SLIM

Remote controller

Remote display adapter (PAC-SA88HA-E)

Power supply

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.

Indoor controller

Remote controller

Power supply 50Hz 220 240V

10m

Connecting wire

0.13mm or over Connecting wire

solid wire,

1.6 or 2.0 (field supplied)

Circuit breaker

(field supplied) L N

HIGH

LOSSNAY control switch (PZ-05SLB

Insulation is needed

N L

DAMPER

2-E)

Connector

LOW

Mr. SLIM

board

CN51

ORN

RED

BRN

YLW

GRN

Power supply for Mr. SLIM 220 240V AC

Relay box

(PZ-12RB-E)

YLW

ORN

RED

WHT

RED

HIGH

WHT

LOSSNAY

Terminal block

ORN

LOW

RED

HIGH

WHT

RED

DAMPER

ORN

DAMPER

WHT

7 6 2

Junction box (field supplied)

2When the LOSSNAY control switch is not used:1When the LOSSNAY control switch is used:

Relay box

(PZ-12RB-E)

Terminal block

A B L N HIGH N

Mr.SLIM CN51 12V DC

Power supply 220 240V AC

Circuit breaker

Terminal block

NOTE: For further information, refer to the

LOSSNAY technical & service manual.

LOSSNAY

LOW

HIGH

DAMPER

ORN

RED

WHT

RED

ORN

WHT

Page 41

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 ON OFF

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

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

SW17-8) Switch for system back-up

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

(2) SW18 (Function selector)

1 2 3 4 ON OFF

SW18-1) Switch for timer

OFF: single day ON: timer every day

SW18-2) Switch for filter sign

OFF: filter sign absent ON: filter sign present

SW18-3) Switch for filter sign time setting

OFF: 100 Hr ON: 2500 Hr

SW18-4) Not yet used.

2. On indoor controller board

For PKH-1.6FKHA (1) SW1 (Mode selector)

1 2 3 4 5 6 7 8 9 0 ON OFF

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

OFF: Fan mode for models without heat pump

ON: AUTO mode for models with heat pump SW1-2) Not for use SW1-3) Switch for auto vanes

OFF: Unit without auto vanes

ON: Unit with auto vanes SW1-4) Not for use SW1-5) Switch to change the temperature to start coil frost prevention

OFF: -3°C(For previous special models)

ON: 1°C(For all current models) SW1-6) Switch for set temperature adjustment in HEAT mode

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

OFF: EXTRA LOW

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

OFF: EXTRA LOW or LOW (set with SW1-6)

ON: LOW or HIGH (set with remote controller) SW1-9) Switch for detecting abnormalities in the outdoor unit adnoamality detection

OFF: When an abnormality occurs, it is detected.

ON: Even if an abnormality occurs, it can not be detected. SW1-10) Switch for auto restart function

OFF: This function does not work

ON: This function works.

7 8

3, PKH-2FKHA3

Page 42

(2) SW2 (Address selector)

1 2 3 4 5 6 ON OFF

(3) SW3 (Emergency operation switch)

Normal operation

1 2

ON OFF

(4) SW5 (Model selector)

1 2 3 4

ON OFF

Used in setting the unit-address for group control. For further information, refer to page 58.

For emergency cooling

1 2

ON OFF

For emergency heating

1 2

ON OFF

SW5-1) Power supply 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 for PKH-FKHA, PKH-FKHSA. Keep this switch at OFF.

(5) SW6 (Model selector)

1 2 3 4

ON OFF

(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.

SW7

ON :230V/240V OFF:220V

SW6-1 OFF ON(Twin NO.1) ON(Triple NO.1) SW6-2 OFF ON(Twin NO.2) ON(Triple NO.2) SW6-3 OFF OFF ON(Triple NO.3) SW6-4 OFF OFF ON

PKH-1.6FKHA3 PKH-2FKHA3

1 2 3

ON OFF

)(

Single control Twin control Triple control

1 2 3

ON OFF

3. On indoor controller board

For PKH-2.5FKHA

PKH-2.5FKHA3, PKH-3FKHA3, PKH-4FKHSA3

(1) J1 (Mode selector)

1 4 5 6 7 8 9

J1-1) Switch that changes between FAN mode and AUTO mode.

Provided: Fan mode for models without heat pump. Not provided: AUTO mode for models without heat pump.

J1-4) Switch for drain pump

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

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

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

2, PKH-3FKHA2, PKH-4FKHSA2

Page 43

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

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.

Provided : 4-degree adjustment

Not provided : No adjustment

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

Provided : EXTRA LOW

Not provided : LOW

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

Provided : EXTRA LOW or LOW (set with J1-7)

Not provided : Low or HIGH (set with remote controller)

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

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

J1-10) Switch for auto restart function

Provided : This function does not work

Not provided : This function works.

(2) SW2 (Address selector)

1 2 3 4 5 6

Used in setting the unit-address for group control. For further information, refer to page 58.

OFF

(3) SW3 (Emergency operation switch)

Normal operation For emergency cooling For emergency heating

ON OFF

1 2

1 2 ON OFF

1 2

OFF

(4) J5 (Model selector)

2 4

J5-2) Provided :For models with heat pump.

Not Provided :For models without heat pump.

J5-4) This jumper is unavailable for PKH-FKHA, PKH-FKHSA, keep this

(5) SW6 (Model selector)

ON OFF

1 2 3 4

SW6-1 SW6-2 SW6-3 SW6-4

Single control

OFF OFF OFF OFF

Twin control ON(Twin No.1) ON(Twin No.2)

OFF OFF

Triple control ON(Triple No.1) ON(Triple No.2) ON(Triple No.3)

(6) SW7

OFF

1 2 3 4

PKH-2.5/3 PKH-4

1 2 3 4 ON OFF

SW7-1) OFF:PKH-2.5/3 SW7-3) Not for use

ON :PKH-4 SW7-4) Not for use

SW7-2) POWER SUPPLY

OFF: 220V ON : 240V

)(

(7) J9 (Model selector)

1 2 J9-1) Not provided J9-2) Provided

PKH-FKA, PKH-FKSA

}

2-11 INDOOR FAN CONTROL

Indoor fan relay output.

(a) During fan ON

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

(b) During fan OFF

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

Page 44

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

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.

60 minutes 60 minutes

10 minutes

3 minutes

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 59.)

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 45

Outdoor fan

Compressor

4-way valve

Bypass valve

Auto vane

Indoor fan

10º

Outdoor unit

Indoor unit

Set direction

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

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”.

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

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

(2) During defrosting

● Even if the thermostat turns OFF, defrosting continues.

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

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

operation has ended.

Further information on the defrost interval is described in 3-5-(3).

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

Page 46

(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 minutes.

<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 47

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 51 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 51.

(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 48

10 TROUBLESHOOTING

1. TROUBLE IN TEST RUN

Symptom Cause Check points

The display “CENTRALLY CONTROLLED” on remote controller dose 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 SW17-

7 ON to make it sub controller.

2 Connect the sub controller to the unit, and

turn circuit breaker ON.

● If the display “centrally controlled” disappears, 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 49

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 50

Check

code

Diagnosis of malfunction Cause Check points

Signal transmitting/receiving 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.

Abnormality of room temper-

ature thermistor (RT1)

Abnormality of indoor coil

thermistor (RT2)

Signal transmission error

(Remote controller does not respond to indoor controller signal.)

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 ➁ 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 ➃ - ➄. As for the normal resistance, refer to the case of P1.

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

Malfunction of drain pump 1) Malfunction of drain pump

Coil frost protection is work-

ing.

System error 1) Wrong address-setting

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

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 51

3. SERVICE DATA INDICATION BY SWITCHES ON OUTDOOR CONTROLLER BOARD

SW3-1 SW3-2

LED

Check code

OFF OFF

Outdoor coil thermistor is abnormal

Input circuit on controller board is abnormal

Open phase

63H2 function 51C function 26C function Overheat protection

Reversed phase

Blinking

Output state

OFF OFF

OFF

Outdoor coil temperature

(bit)

8 16 32 64

128

8 16 32 64

128

256

512

1024

2048 4096 8192

16384 32768

Fan output

step

(bit)

OFF

Total time of compressor

operation(Hr)

Compressor ON command from indoor controller

Heating operation command from indoor controller

During 63H1 function

Compressor ON Outdoor fan ON 4-way valve ON Bypass valve ON

Crankcase heater ON

Lighting

LD1

LD2

LD3 LD4

LD5 LD6 LD7

LD8

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 52

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)

Type

Fan rotational frequency (rpm)

100 150 200 250

800

600

400

200

Type

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-1.6/2KA

PUH-4KSA

<50HZ>

2PUH-2.5VKA

PUH-2.5/3KA

<50HZ>

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 53

4. TROUBLESHOOTING ACCORDING TO CHECK CODE

Blinking

LED

LD1

LD2

LD3

LD4

LD5

LD6

Diagnosis of malfunction Cause Check point

Reversed phase Phases L1, L2, and L3are con-

Open phase ● Phase L2is open.

Outdoor coil thermistor is abnormal. (Open circuit or short circuit)

High pressure switch (63H2) function

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

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

nected improperly.

● 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.

Check the power supply connection.

● Check the power supply.

● Check each protector.

● Measure the resistance of the thermistor.

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

● 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.

door controller board.

LD7

Over heat protection ● The thermistor is broken.

LD8

Input circuit of outdoor controller board is abnormal.

● Coil temperature is over 67°C.

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

5.WHEN OUTDOOR UNIT DOES NOT WORK

Cause

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

2) Power supply is poorly connected.

3) Connector or transformer is broken.

4) Fuse (6A) in the outdoor controller board is blown.

● Measure the resistance of the thermistor.

● Check the outdoor fan motor.

● Check if air cycle is short-cycled.

Check points

1) Check the connecting wires.

2) Check the power supply.

3) Check connectors and transformers.

4) Check the fuse.

Page 54

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 Phenomenon 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 code “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 55

7. OTHER TROUBLES AND CAUSES

Vanes do not work.

Unit stops after 5 to 20 seconds operation

Airflow display is OFF and 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.

t t

Refer to check code on remote controller display. See page 50.

Vane motor relay is damaged. Limit switch is damaged.

The size of the cam is wrong.

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 ter-

minal block is poorly connected.

Page 56

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 operation.

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 57

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)

107"

Measure the resistance between the terminals using a tester.

Contactor (88H) [for heater]

Abnormal

Open or short

6 1

88H

Normal

1.6

/ 2 /

2.5

/ 3 /

Abnormal

Open or short

Red–Black

White–Black

Motor terminal

Relay connector

1.6 / 2

154.3"

162.0"

2.5 / 3

99.5"

103.9"

62.6"

74.0"

Normal

Open or short

Abnormal

Brown–Yellow

Brown–Blue

Red–Orange

Red–Pink

Connector

Normal

2.5 / 3 / 4

186~214"

Normal

1.6 / 2

15k"

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

Vane motor (MV)

Measure the resistance of each heater element by using a tester.

Heater (H)

Normal

Abnormal

1.6 / 2

14.3"

700W 120V

2.5 / 3

18.9"

700W 240V

16.5"

800W 240V

Open or short

Room temperature thermistor (RT1)

Pipe temperature thermistor (RT2)

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

(Refer to the next page for a detail.)

Normal

4.3k"~9.6k"

Abnormal

Open or short

Thermal protector

OFF : 120i5: ON : OFF–15:

OFF:130i5: ON :80i20:

9. How to check the parts PKH-1.6FKHA3, PKH-2FKHA3, PKH-2.5FKHA2, PKH-3FKHA2, PKH-4FKHSA2,

PKH-2.5FKHA3, PKH-3FKHA3, PKH-4FKHSA3

Page 58

-20 -10 0 10 20 30 40 50

< Thermistor for lower temperature >

Temperature (:)

Resistance (K")

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 59

11 SYSTEM CONTROL

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

1. VARIETY OF SYSTEM CONTROL FUNCTIONS

1 Group control with

a single remote controller (See page 60.)

Many units, installed at different locations, can be started and controlled with a single 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.

2 Both remote

ON/OFF and individual controls (See page 61.)

w Timer adapter

(PAC-SA89TA-E) is needed.

3 Individual control

by grouping remote controllers (See page 62.)

4 Multiple remote

control display (See page 63.)

w Multiple display

adapter (PAC-SA88HA-E) is needed.

5 Auto restart func-

tion (See page 63.)

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.

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 60

2. GROUP CONTROL WITH A SINGLE REMOTE CONTROLLER

To remote controller

To next unit

The last unit dose 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 double

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

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.

Master (No. 0) unit

ALL OFF

No. 1 unit

1 ON

SW2

No. 2 unit

2 ON

No. 4 unit

3 ON

No. 8 unit

4 ON

No. 16 unit

5 ON

No. 32 unit

6 ON

Page 61

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

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

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.

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

Page 62

3-3 Switch function of remote ON-OFF switch

Remote controller cable (2-core)

Remote controller

SW2

(Switches between remote ON-OFF and individual control)

(Remote ON-OFF control)

SW1 (Switches between remote ON and OFF.)

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.

(Start)

OFF

(Stop)

All units start together. Individual control is not available.

All units stop together. Individual control is not available.

w1 w2

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

OFF

(Individual control)

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 63

5. MULTIPLE REMOTE CONTROL DISPLAY

CN51

connector(5P)

GREEN

Power supply

Electrical insulation is needed.

Wiring at the actual place

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

X1-3

X2-3

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.

Indoor controller board

[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.

By setting the distich SW1-10 to ON (PKH-1.6/2FKHA), J1-10 Cut (PKH-2.5/3/4FKH(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)

6. AUTO RESTART FUNCTION

A : An optional timer adapter B : Asingle-throw switch

Page 64

12 DISASSEMBLY PROCEDURE

Metal fixture

Screws

Hanger of indoor unit

Catch of installation plate

Terminal cover

Electrical parts box cover

Connector

Indoor controller board

Right side panel

PKH-3FKHA2 ,PKH-3FKHA3

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) Disconnect the connector from the adapter case. (3) 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 65

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 and heater contactor 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

controller board.

Photo 3

Capacitor

Indoor controller board case

Photo 4

Heater contactor

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 grills.

7. Removing the drain pan

(1) Remove the left and right side panels. (2) Remove the grilles. (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

Indoor controller board

Grilles

Drain hose band

Screws

Drain hose

Page 66

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 2 screws on the left and right sides of the heat

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

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

support. (See Photo 10. )

(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

Screw Fan motor

Motor fixture

Heat exchanger

Bearing support

Lineflow fan

9. Removing the electrical heater.

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

motor.(See Photo 7.)

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

support. (See Photo 10.)

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

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

(7) Pull the left-hard side of the heat exchanger toward you,

and remove the lineflow fan.

(8) Remove the heater fixing screws (1 screw each on right

and left sides), and slide the heater element to the left to remove the heater.

Photo 9Photo 11

Screw

Motor support

Photo 10

Photo 12

Heat exchanger

Fan motor

Lineflow fan

Heater element

Screw

Motor

support

ScrewCenter support

Heater fixing screws

Page 67

13 PARTS LIST

Part No. Specification

No.

Wiring

Diagram

Symbol

Recom-

mended

Q,ty

Price

Unit

Amount

Remarks

(

Drawing No.

)

Q,ty/set

PKH-1.6/2

FKHA FKHA

FKHA

6 7 8

9 10 11

Part Name

4 2

2 2

1 2 1 1 1 1

1 4

2 2

2 1 2 1 1 1 1

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

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

(BC25R572H03) (BC25R572H06)

(BC25G057H07)

STRUCTURAL PARTS PKH-1.6FKHA, PKH-1.6FKHA1 PKH-1.6FKHA2, PKH-1.6FKHA3 PKH-2FKHA, PKH-2FKHA1 PKH-2FKHA2, PKH-2FKHA3

5 6

Page 68

Part No.

Specification

No.

Wiring

Diagram

Symbol

Recom-

mended

Q,ty

Price

Unit

Amount

Remarks

(

Drawing No.

)

Q,ty/set

PKH-1.6 PKH-2

FKHA FKHA

FKHA

FKHA3

FKHA FKHA

FKHA

FKHA3 1 2 3 4 5 6 7 8 9

10 11 12 13 14

Part Name

1 1 1

1 1

1 1 1 1 2 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 2 1

1 1 1

1 1

1 1 1 1 2 1

R01 566 103 R01 KV5 106 R01 KV5 102 T7W 51J 675 T7W 52J 675 R01 KV5 223 R01 KV5 530 R01 KV5 038 R01 KW1 002 R01 KV5 048 R01 KV5 092 R01 KV5 527 R01 KV5 059 R01 KW2 002

SLEEVE BEARING BEARING SUPPORT BEALING MOUNT FAN GUARD FAN GUARD VANE MOTOR NOZZLE ASSEMBLY GUIDE VANE LEFT ROTARY VANE CENTER SUPPORT VANE SLEEVE DRAIN HOSE ARM RIGHT ROTARY VANE

FILTER CHECK MODE TEST RUN

241

ELECTRICAL PARTS PKH-1.6FKHA, PKH-1.6FKHA1 , PKH-1.6FKHA2,PKH-1.6FKHA3 PKH-2FKHA, PKH-2FKHA1, PKH-2FKHA2 , PKH-2FKHA3

For 1.6/2FKHA2

1.6/2FKHA3

20 21

For 1.6/2FKHA

1.6/2FKHA1

26 25

22 23

Page 69

Part No.

Specification

No.

Wiring

Diagram

Symbol

Recom-

mended

Q,ty

Price

Unit

Amount

Remarks

(

Drawing No.

)

Q,ty/set

PKH-1.6 PKH-2

FKHA FKHA

FKHA

FKHA3

FKHA FKHA

FKHA

FKHA3

Part Name

1 1 1 1

1 1 1 1 1 1

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

1 1

1 1 1

1 1 1 1 1 1

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

1 1 1

1 1 1 1 1 1

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

1 1

1 1 1 1

1 1 1 1 1 1

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

1 1

I.B I.B

F1<I.B>

TB2 TB5 TB4

T T C

88H

26H

FS<1,2>

R.B R.B

15 16 17

19 20 21 22 23

25 26 27 28 29 30 31 32 33 34 35 36

40 41

(BG02A326G06) (BG25B573H05)

(BG02B718H05)

(BG25B846H11)

(BA84D384H01)

RT1 RT2

—

— T7W 556 305 T7W 500 310 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 71G 215 R01 J07 202

— R01 KV5 130 T7W 570 762 R01 KV5 105 R01 KV5 135 R01 110 700

— R01 A21 706 T7W 581 300 R01 97E 480 R01 KV5 480 T7W 53J 480 T7W 54J 480 R01 KV5 114 R01 L72 713 T7W 54J 200 T7W 351 077 R01 12G 523

CONTROL BOX COVER TERMINAL COVER REMOTE CONTROLLER CABLE CONTROLLER BOARD CONTROLLER BOARD CONTROLLER CASE FUSE TERMINAL BLOCK TERMINAL BLOCK TERMINAL BLOCK TRANSFORMER TRANSFORMER RUN CAPACITOR HEATER CONTACTOR THERMISTOR WATER SHIELD MOTOR SUPPORT FAN MOTOR RUBBER MOUNT MOTOR COVER THERMAL SWITCH INSULATOR THERMAL FUSE HEATER ELEMENT HEAT EXCHANGER HEAT EXCHANGER HEAT EXCHANGER HEAT EXCHANGER LINEFLOW FAN REMOTE CONTROLLER REMOTE CONTROLLER REMOTE CONTROLLER COVER DRAIN SOCKET

12m

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

2.0µF 440V JCIA 12V DC

PK4V30KA

250V 121˚C 10A 700W

PIPE TEMPERATURE ROOM TEMPERATURE

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

Page 70

FILTER CHECK MODE TEST RUN

241

Part No.

Specification

No.

Wiring

Diagram

Symbol

Recom-

mended

Q,ty

Price

Unit

Amount

Remarks

(

Drawing No.

)

Q,ty/set

PKH-2.5

PKH-3

1 2 3

Part Name

1 1 1 1

4 1

1 1 1 1

4 1

1 1 1 1

4 1

1 1 1

1 1

4 1

1 1 1

1 1

4 1

1 1 1

4 1

(BG25J821H01) (BG25J821H02)

SLEEVE BEARING BEARING MOUNT LEFT LINEFLOW FAN HEAT EXCHANGER HEAT EXCHANGER DRAIN PAN DRAIN PAN GUIDE VANE GUIDE VANE(WITH HANDLE) CENTER COVER

R01 005 103 R01 Z61 102 R01 12G 114 T7W 585 480 T7W 587 480 R01 12G 529 T7W E13 529

— —

R01 12G 621

FKHA1 FKHA2

FKHA

FKHA3

FKHA

FKHA3

FKHA1 FKHA2

ELECTRICAL PARTS PKH-2.5FKHA, PKH-2.5FKHA1, PKH-2.5FKHA2,PKH-2.5FKHA3 PKH-3FKHA, PKH-3FKHA1, PKH-3FKHA2 , PKH-3FKHA3

For 2.5/3FKHA1

2.5/3FKHA2

2.5/3FKHA3

For 2.5/3FKHA

25 24

14815

22 21

12 13

17 18 19

Page 71

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

Part No.

No.

R01 12G 063

R01 12G 002

R01 KV5 527 11 12

R01 12G 223 13

T7W 556 305 14

R01 06A 202 15

R01 22A 202 16 17

R01 588 255

T7W 503 310 18

T7W 71J 310 19

T7W 520 239 20 21 22

T7W 50J 799 23

R01 71G 215 24

T7W 509 716 25

T7W 517 716 26

T7W 512 716 27 28

R01 12G 220

R01 12G 105 31 32

R01 12G 115 33 34 35

R01 12G 103 36

R01 KV5 102 37

T7W 53J 675 38

R01 12G 706 39

T7W 587 300

T7W 418 200 40

T7W 53J 200 41

T7W 351 077 42

R01 230 700

—

— —

—

— —

—

— —

Part Name

Specification

JOINT SHAFT AUTO VANE DRAIN HOSE ARM VANE MOTOR REMOTE CONTROLLER CABLE

ROOM TEMPERATURE THERMISTOR

12m

PIPE TEMPERATURE THERMISTOR TERMINAL COVER RUN CAPACITOR

2.0µF 440V

CONTROLLER BOARD CONTROLLER BOARD FUSE

250V 6.3A CONTROLLER COVER CONTROLLER CASE TRANSFORMER HEATER CONTACTOR TERMINAL BLOCK TERMINAL BLOCK TERMINAL BLOCK

JC-1A DC12V

3P(L/N/;)

3P(1/2/3)

2P(1/2) MOTOR BAND FAN MOTOR MOTOR LEG MOTOR LEG RUBBER MOUNT MOTOR BAND RIGHT LINEFLOW FAN CENTER SUPPORT BEARING BAND SLEEVE BEARING BEARING MOUNT FAN GUARD THERMAL FUSE HEATER ELEMENT

117˚C 10A 250V

240V 700W REMOTE CONTROLLER REMOTE CONTROLLER REMOTE CONTROLLER COVER THERMAL SWITCH

FKHA

1 2 1 3 1 1 1 1 1 1 1

2 1 1 1 1 1 1 1 1 1 1

2 1 1 1 1 1 1

1 3 1

1 1

PKH-2.5

FKHA1 FKHA2

1 2 1 3 1 1 1 1 1 1

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

2 1 1 1 1 1 1 2 1 3

Q,ty/set

FKHA

FKHA3

1 2 1 3 1 1 1 1 1 1

1 2 1 1 1 1 1 1 1 1 1

1 2 1 1 1 1 1 1 2 1 3

PKH-3

1 2 1 3 1 1 1 1 1 1 1

2 1 1 1 1 1 1 1 1 1 1

2 1 1 1 1 1 1

1 3 1

1 1

FKHA1 FKHA2

1 2 1 3 1 1 1 1 1 1

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

2 1 1 1 1 1 1 2 1 3

Remarks

(

Drawing No.

FKHA3

1 2 1 3

(BG25H301H02)

1 1 1 1 1

(BG02J608H07)

1 2 1

(BG02A648G02)

(BG25B573H06)

1 1 1 1 1 1

(BG02H065H01)

(BG02A534G11)

(BG02A534H16)

2 1

(BG02H178H01)

1 1

(BG00R259G07)

(BG02L462H02)

1 1 2 1 3

700W

Wiring

Diagram

)

Symbol

RT1 RT2

C I.B I.B

F1,2<I.B>

T 88H TB2 TB4 TB5

FS1,2

H R.B R.B

26H

Recom-

mended

Q,ty

Unit

Price

Amount

Page 72

ELECTRICAL PARTS

FILTER CHECK MODE TEST RUN

241

PKH-4FKHSA, PKH-4FKHSA1, PKH-4FKHSA2, PKH-4FKHSA3

411

For 4FKHSA1

4FKHSA2 4FKHSA3

For 4FKHSA

25 24

14815

22 21

Part No.

No.

R01 005 103

R01 Z61 102

R01 16G 114

T7W 589 480 R01 16G 529

T7W E14 529

R01 12G 621

R01 12G 063

— —

Part Name

Specification

SLEEVE BEARING

BEARING MOUNT LEFT LINEFLOW FAN HEAT EXCHANGER DRAIN PAN DRAIN PAN GUIDE VANE GUIDE VANE(WITH HANDLE) CENTER COVER JOINT SHAFT

12 13

1 1 1 1

4 1 1

Q,ty/set

PKH-4

FKHSA1 FKHSA2

1 1 1 1

4 1 1

FKHSA3FKHSA

(

Drawing No.

1 1 1

(BG25J821H01)

(BG25J821H02)

1 1

17 18 19

Remarks

Wiring

Diagram

)

Symbol

Recom-

mended

Q,ty

Unit

Price

Amount

Page 73

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

Part No.

No.

R01 16G 002

R01 KV5 527 11 12

R01 12G 223 13

T7W 556 305 14

R01 06A 202 15

R01 22A 202 16 17

R01 576 255

T7W 503 310 18

T7W 71J 310 19

T7W 520 239 20 21 22

T7W 50J 799 23

R01 71G 215 24

T7W 509 716 25

T7W 517 716 26

T7W 512 716 27 28

T7W 571 762

R01 16G 105 31 32

R01 16G 115 33 34 35

R01 12G 103 36

R01 KV5 102 37

T7W 71J 675 38

T7W 589 706 39

T7W 589 300

T7W 418 200 40

T7W 53J 200 41

T7W 351 077 42

R01 230 700

—

— —

—

— —

—

— —

Part Name

Specification

AUTO VANE DRAIN HOSE ARM VANE MOTOR REMOTE CONTROLLER CABLE

ROOM TEMPERATURE THERMISTOR

12m

PIPE TEMPERATURE THERMISTOR TERMINAL COVER RUN CAPACITOR

3.0µF 440V

CONTROLLER BOARD CONTROLLER BOARD FUSE

250V 6.3A CONTROLLER COVER CONTROLLER CASE TRANSFORMER HEATER CONTACTOR TERMINAL BLOCK TERMINAL BLOCK TERMINAL BLOCK

JC-1A DC12V

3P(L/N/;)

3P(1/2/3)

2P(1/2) MOTOR BAND FAN MOTOR

D10A4P70MS

MOTOR LEG

MOTOR LEG RUBBER MOUNT MOTOR BAND RIGHT LINEFLOW FAN CENTER SUPPORT BEARING BAND SLEEVE BEARING BEARING MOUNT FAN GUARD THERMAL FUSE HEATER ELEMENT

117˚C 16A 250V

240V 800W REMOTE CONTROLLER REMOTE CONTROLLER REMOTE CONTROLLER COVER THERMAL SWITCH

Q,ty/set

Wiring

PKH-4

FKHSA1 FKHSA2

2 1 4 1 1 1 1 1 1

FKHSA3FKHSA

2 1 4 1 1 1 1 1 1

Remarks

(

Drawing No.

Diagram

)

(BG25H301H02)

(BG02J608H07)

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

2 1 1 1 1 1 1

2 1 3

1 2 1

(BG02A648G02)

(BG25B573H06)

1 1 1 1 1 1

(BG02H065H01)

(BG02A534G12)

(BG02A534H17)

2 1

(BG02H178H01)

1 1

(BG00R259G07)

(BG02L462H02)

1 1 2 1 3

800W

Recom-

mended

Symbol

RT1 RT2

C I.B I.B

F1,2<I.B>

88H TB2 TB4 TB5

FS1,2

R.B R.B

Q,ty

Unit

Price

Amount

1 1

26H

Page 74

Part No.

No.

Wiring

Diagram

Symbol

Recom-

mended

Q,ty

Price

Unit

Amount

Remarks

(

Drawing No.

)

4 5 6 7 8

Part Name

Specification

Q,ty/set

PKH-2.5 PKH-3

FKHA

1 1

4 1 2 1 1 1

1 1

4 1 2 1 1 1

FKHA

1 4 1 2 1 1

1 1

4 1 2 1 1 1

1 1

4 1 2 1 1 1

FKHA3

1 4 1 2 1 1

1 1

(BG00A593G91) (RG00A734G31)

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

— —

R01 12G 523

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

STRUCTURAL PARTS PKH-2.5FKHA, PKH-2.5FKHA1, PKH-2.5FKHA2,PKH-2.5FKHA3 PKH-3FKHA, PKH-3FKHA1, PKH-3FKHA2 , PKH-3FKHA3

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

Page 75

4 5 6 7 8

1 1

5 1 2 1 1 1

1 1

5 1 2 1 1 1

1 1

Part No.

No.

Wiring

Diagram

Symbol

Recom-

mended

Q,ty

Price

Unit

Amount

Remarks

(

Drawing No.

)

Part Name

Specification

Q,ty/set

PKH-4

FKHSA

1 5 1 2 1 1

1 1 1

(BG00A593G92) (RG00A734G32)

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

—

— R01 12G 523 R01 16G 692

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

STRUCTURAL PARTS PKH-4FKHSA, PKH-4FKHSA1, PKH-4FKHSA2, PKH-4FKHSA3

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

Page 76

14 OPTIONAL PARTS

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

PAC-05FFS-E PAC-07FFS-E PAC-10FFS-E PAC-15FFS-E

5C 7C 15C10C

Liquid:{9.52 Gas:{15.88

Indoor unit:Flared Outdoor unit:Flared

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

PAC-SC51PI-E PAC-SC52PI-E PAC-SC53PI-E PAC-SC54PI-E

5C 7C 15C10C

Liquid:{9.52 Gas:{19.05

Indoor unit:Flared Outdoor unit:Flared

Service Ref.

Part No

Model Name

PKH-1.6 / 2FKHA3, PKH-2.5 / 3FKHA2, FKHA3, PKH-4FKHSA2, FKHSA3

PAC-SC32PT(with set back function)

Program timer

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 Set back function

Part No.

Part name

Service Ref.

Program timer

PKH-1.6, 2FKHA

3, PKH-2.5, 3FKHA2, FKHA3, PKH-4FKHSA2, FKHSA3

PAC-SC32PTA 5-4/32 ✕ 4-23/32 ✕ 23/32(130✕120✕18A) Wall mount Quartz ±50seconds/month at25: Liquid crystal display Liquid crystal display Liquid crystal display 24 hours 30minutes 48/day 5V DC ±5%(Supplyed by Remote Controller) Provided

28˚C

˚C

8:00

Normal

operation

23:00

Setback

operation

8:00

Normal

operation

1. REFRIGERANT PIPES

Service Ref. : PKH-1.6FKHA3, PKH-2FKHA3, PKH-2.5FKHA2, PKH-3FKHA2

PKH-2.5FKHA3, PKH-3FKHA3

Service Ref. : PKH-4FKHSA2, PKH-4FKHSA3

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

When using a program timer, PAC-SK65PT, a program timer adapter (PAC-825AD) is also needed.

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-SK65PT)

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 77

2-3. How to connect program timer

ORN 1

2 3

BRN RED

SET/MONITOR

SET

S M T W T F 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

SET/MONITOR

SET

S M T W T F 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 TEST RUN

2-wire cable

5-wire cable

To indoor unit

Connector CN1 Connector CN1

(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 6-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

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

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.

WEEK DAY SETTING SW

Used for week day setting.

MODE SELECTOR SW

CURRENT TIME DISPLAY

During MONITOR status,current

time is display.

During Daily timer setting, a

time desire for timer setting is displayed.

CROCK ADJUSTMENT SW

SET BACK DISPLAY

Indicates the setting set back range.

DAILY TIMER SETTING DISPLAY

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

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

SET BACK SETTING SW

Used for set back setting.

ON/SET BACK/OFF SW

Used to specify the time setting pattern.

DAILY TIMER SW

Used for timer setting in 30 minutes unit.

WEEKLY TIMER 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 adjust-

ment, charge of week day, daily and weekly timer setting.

3. TIMER ADAPTER

This adapter is needed for system control and for operation via external contacts. Adapter connection is described on page 61.

Part No. PAC-SA89TA-E

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 decomes 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 decomes 0 indication reverses in 10 minutes unit.

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.

Page 78

4. MULTIPLE REMOTE CONTROLLER ADAPTER

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

This adapter is needed for remote indication (operation/check). Adapter connection is described on page 63.

Part No. PAC-SA88HA-E

1 2 3 4 5

BRN RED ORN YLW GRN

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. See page ##.

Part No. PAC-805RC

5-1. Dimensions Unit : mm

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

operation of the accessory remote controller.

"DUAL" Instructions from both the accessory

remote controller and the centralized

ENGAGED

GROUP

12345678910

ACTIVE BYPASS

DUAL CENTRAL

GROUP SELECTION

PROGRAM TIMER

CONTROLLER OPERATION

BACK

ACTIVE

BYPASS

DUAL

CENTRAL

POWER ON/OFF

AHEAD

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

"CENTRAL"

MITSUBISHI ELECTRIC

ON/OFF switching by the accessory

remote controller is invalidated. Control is by the centralized remote controller only.

Initial setting is "DUAL".

LCD Matrix Display This display indicates the operational sta-

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

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

the attached unit(s). (They designate the unit that is 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 pro-

gram timer.)

Use “BYPASS” when a program timer

is not connected. “ACTIVE” The switch tums ON/OFF operational

instructions from the program timer

automatically. “BYPASS” ON/OFF Operation is by the central-

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

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

Page 79

5-3 Connection method

A N E

(Y)

(W) (R) (O)

(BR)

POWER SUPPLY

N E

Fuse(5A)

Tie-wrap

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

Tie-wrap

TRANSFORMER

Transmission

TERMINAL-BLOCK FOR TRANSMISSION

TERMINAL-BLOCK OF POWER SUPPLY

200

220

230

240

BACK

ACTIVE BYPASS

POWER ON/OFF

DUAL

CENTRAL

AHEAD

ENGAGED

GROUP

ACTIVE BYPASS

GROUP SELECTION

PROGRAM TIMER

CONTROLLER OPERATION

DUAL CENTRAL

12345678910

10 9 8 7 6 5 4 3 2 1

To adaptor's terminal-block

Centralized remote controller

Non-polar, two-wire cable

To adaptor's terminal-block

Power supply board box

(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 AV (220, 230, 240V) to

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

A N.

(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.

2. Wiring diagram

Centralized remote controller

Power supply board

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

ENGAGED

GROUP

12345678910

GROUP SELECTION

PROGRAM

ACTIVE BYPASS

TIMER CONTROLLER

DUAL CENTRAL

OPERATION

Page 80

6. PROGRAM TIMER ADAPTER

Length : 2m (6' 7")

This adapter is needed when a program timer(PAC-SK65PT)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

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

3 3-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 A N. As E is 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

TERMINAL-BLOCK FOR TRANSMISSION

Tie-wrap

Transmission cord

CN22

Dip switch

TRANS

CN1 CN21CN51CN30CN42 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

A N E

POWER SUPPLY

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

gram timer adapter.

7. DRAIN PUMP (for PKH-2.5FKHA, PKH-3FKHA, PKH-4FKHSA)

Part No. PAC-SE89DM-E

Page 81

Page 82

HEAD OFFICE : MITSUBISHI DENKI BLDG., 2-2-3, MARUNOUCHI, CHIYODE-KU, TOKYO100-8310, JAPAN

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