Mitsubishi OC331B Service Manual

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS SPLIT -TYPE, AIR CONDITIONERS

SERVICE MANUAL

May 2008

No.OC331

REVISED EDITION-B

Indoor unit [Model names]

PKA-RP50FAL2 PKA-RP60FAL PKA-RP71FAL PKA-RP100FAL

PKH-P60FALH PKH-P71FALH

PKH-P100FALH PKH-P100FALH

[Service Ref.]

PKA-RP50FAL2 PKA-RP50FAL2#1 PKA-RP60FAL PKA-RP60FAL#1 PKA-RP71FAL PKA-RP71FAL#1 PKA-RP100FAL PKA-RP100FAL#1

PKH-P60FALH PKH-P71FALH

CONTENTS

1. TECHNICAL CHANGES

2. REFERENCE MANUAL

3. SAFETY PRECAUTION

4. PART NAMES AND FUNCTIONS

Indoor unit

Model name indication

5. SPECIFICATIONS

6. NOISE CRITERION CURVES

7. OUTLINES AND DIMENSIONS

8. WIRING DIAGRAM

10. TROUBLE SHOOTING

11. SPECIAL FUNCTION

12. DISASSEMBLY PROCEDURE

13. PARTS LIST

14. RoHS PARTS LIST

Revision:

• PKA-RP50~100FAL(2)#1 are added in REVISED

EDITION-B.

• Some descriptions have been modified.

• Please void OC331

REVISED EDITION-A.

Note:

• This manual describes only service data of the indoor units.

• RoHS compliant products have <G> mark on the spec name plate.

• For servicing of RoHS compliant products, refer to the RoHS Parts List.

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REFRIGERANT SYSTEM DIAGRAM

.......................................

.........................................

........................................................

.............................................42

.........................

...........................

11 13 14

33 36

2 2 3

Remote controller

TECHNICAL CHANGES

PKA-RP50FAL2 PKA-RP50FAL2#1 PKA-RP60FAL PKA-RP60FAL#1 PKA-RP71FAL PKA-RP71FAL#1 PKA-RP100FAL PKA-RP100FAL#1

INDOOR CONTROLLER BOARD(I.B.) has been changed.

REFERENCE MANUAL

2-1. OUTDOOR UNIT’S SERVICE MANUAL

Service Ref. Service Manual No. PUHZ-RP35/50/60/71/100/125/140VHA

PUHZ-RP100/125/140YHA

(1)

PUHZ-RP71/100/125/140VHA PUHZ-RP200/250YHA PUHZ-RP200/250YHA PU(H)-P • VGAA.UK PU(H)-P • YGAA.UK PUHZ-P100/125/140VHA.UK OC359 PUHZ-RP35/50/60/71/100/125/140VHA2 PUHZ-RP100/125/140YHA2 PUHZ-RP35/50/60/71/100VHA3 PUHZ-RP100YHA3 PU(H)-P71/100VHA PU(H)-P100/125/140YHA PUHZ-P100/125/140VHA2 PUHZ-RP71/100/125/140VHA2-A PUHZ-RP100/125/140YHA2-A PUHZ-BP100/125/140VHA-A PUHZ-BP200/250YHA-A PUHZ-P200/250YHA2 OCH424 / OCB424 PUHZ-HRP71/100VHA PUHZ-HRP100/125YHA PUHZ-RP200/250YHA2 OCH428 / OCB428

(1)(2) (1)

-A OC339

(1)

.UK

-A OC337

(1)

.UK

(1)

.UK OCH415 / OCB415

(1)

OC334

OC338

OC336

OC374

OC379

OCH422 / OCB422

OCH423 / OCB423

OCH425 / OCB425

2-2. TECHNICAL DATA BOOK

Series (Outdoor unit) Manual No. PUHZ-RP • HA(-A) OCS01

PU(H)-P • GAA.UK OCS02 PUHZ-RP • HA2 OCS05 PUHZ-P • HA OCS06 PU(H)-P • HA OCS07 PUHZ-P • VHA2, PUHZ-P • YHA OCS08 PUHZ-RP • HA2-A OCS09 PUHZ-BP • HA OCS10 PUHZ-HRP • HA OCS11

SAFETY PRECAUTION

3-1. ALWAYS OBSERVE FOR SAFETY

Before obtaining access to terminal, all supply circuits must be disconnected.

3-2. CAUTIONS RELATED TO NEW REFRIGERANT

Cautions for units utilizing refrigerant R407C

Do not use the existing refrigerant piping.

The old refrigerant and lubricant in the existing piping contains a large amount of chlorine which may cause the lubricant deterioration of the new unit.

Use “low residual oil piping”

If there is a large amount of residual oil (hydraulic oil, etc.) inside the piping and joints, deterioration of the lubricant will result.

Store the piping to be used during installation indoors with keep both ends sealed until just before brazing. (Store elbows and other joints in a plastic bag.)

If dust, dirt, or water enters the refrigerant cycle, deterioration of the oil and compressor trouble may result.

Use ESTER , ETHER or HAB as the lubricant to coat flares and flange connection parts.

If large amount of mineral oil enter, that can cause deterioration of refrigerant oil etc.

Use liquid refrigerant to seal the system.

If gas refrigerant is used to seal the system, the composition of the refrigerant in the cylinder will change and performance may drop.

Do not use a refrigerant other than R407C.

If another refrigerant (R22, etc.) is used, the chlorine in the refrigerant may cause the lubricant deterioration.

Use a vacuum pump with a reverse flow check valve.

The vacuum pump oil may flow back into the refrigerant cycle and cause the lubricant deterioration.

Ventilate the room if refrigerant leaks during operation. If refrigerant comes into contact with a flame, poisonous gases will be released.

[1] Cautions for service

·After recovering the all refrigerant in the unit, proceed to working.

·Do not release refrigerant in the air.

·After completing the repair service, recharge the cycle with the specified amount of liquid refrigerant.

[2] Refrigerant recharging

(1) Refrigerant recharging process

1Direct charging from the cylinder.

·R407C cylinder are available on the market has a syphon pipe.

·Leave the syphon pipe cylinder standing and recharge it. (By liquid refrigerant)

Unit

Gravimeter

(2) Recharge in refrigerant leakage case

·After recovering the all refrigerant in the unit, proceed to working.

·Do not release the refrigerant in the air.

·After completing the repair service, recharge the cycle with the specified amount of liquid refrigerant.

[3] Service tools

Use the below service tools as exclusive tools for R407C refrigerant.

No. Tool name Specifications 1 Gauge manifold ·Only for R407C.

·Use the existing fitting SPECIFICATIONS. (UNF7/16)

·Use high-tension side pressure of 3.43MPa·G or over. 2 Charge hose ·Only for R407C.

·Use pressure performance of 5.10MPa·G or over. 3 Electronic scale 4 Gas leak detector ·Use the detector for R134a or R407C. 5 Adapter for reverse flow check. ·Attach on vacuum pump. 6 Refrigerant charge base. 7 Refrigerant cylinder. ·For R407C ·Top of cylinder (Brown)

·Cylinder with syphon 8 Refrigerant recovery equipment.

—

CAUTIONS RELATED TO NEW REFRIGERANT

Cautions for units utilizing refrigerant R410A

Use new refrigerant pipes.

In case of using the existing pipes for R22, be careful with the followings.

· For PR60/71VHA3 and RP100 be sure to perform replacement operation before test run.

· Change flare nut to the one provided with this product. Use a newly flared pipe.

· Avoid using thin pipes.

Make sure that the inside and outside of refrigerant piping is clean and it has no contamination such as sulfur hazardous for use, oxides, dirt, shaving particles, etc. In addition, use pipes with specified thickness.

Contamination inside refrigerant piping can cause deterioration of refrigerant oil etc.

Store the piping to be used during installation indoors and keep both ends of the piping sealed until just before brazing. (Leave elbow joints, etc. in their packaging.)

If dirt, dust or moisture enter into refrigerant cycle, that can cause deterioration of refrigerant oil or malfunction of compressor.

Do not use refrigerant other than R410A.

If other refrigerant (R22 etc.) is used, chlorine in refrigerant can cause deterioration of refrigerant oil etc.

Use a vacuum pump with a reverse flow check valve.

Vacuum pump oil may flow back into refrigerant cycle and that can cause deterioration of refrigerant oil etc.

Use the following tools specifically designed for use with R410A refrigerant.

The following tools are necessary to use R410A refrigerant.

Tools for R410A Gauge manifold Charge hose

Gas leak detector

Torque wrench

Flare tool Size adjustment gauge Vacuum pump adaptor

Electronic refrigerant charging scale

Keep the tools with care.

If dirt, dust or moisture enter into refrigerant cycle, that can cause deterioration of refrigerant oil or malfunction of compressor.

Use ester oil, ether oil or alkylbenzene oil (small amount) as the refrigerant oil applied to flares and flange connections.

If large amount of mineral oil enter, that can cause deterioration of refrigerant oil etc.

Do not use a charging cylinder.

If a charging cylinder is used, the composition of refrigerant will change and the efficiency will be lowered.

Ventilate the room if refrigerant leaks during

Charge refrigerant from liquid phase of gas cylinder.

If the refrigerant is charged from gas phase, composition change may occur in refrigerant and the efficiency will be lowered.

operation. If refrigerant comes into contact with a flame, poisonous gases will be released.

[1] Cautions for service

(1) Perform service after collecting the refrigerant left in unit completely. (2) Do not release refrigerant in the air. (3) After completing service, charge the cycle with specified amount of refrigerant. (4) When performing service, install a filter drier simultaneously. Be sure to use a filter drier for new refrigerant.

[2] Additional refrigerant charge

When charging directly from cylinder

· Check that cylinder for R410A on the market is syphon type.

· Charging should be performed with the cylinder of syphon stood vertically. (Refrigerant is charged from liquid phase.)

Unit

Gravimeter

[3] Service tools

Use the below service tools as exclusive tools for R410A refrigerant.

No. Tool name Specifications 1 Gauge manifold ·Only for R410A

·Use the existing fitting

·Use high-tension side pressure of 5.3MPa·G or over. 2 Charge hose ·Only for R410A

·Use pressure performance of 5.09MPa·G or over. 3 Electronic scale 4 Gas leak detector ·Use the detector for R134a, R407C or R410A. 5 Adaptor for reverse flow check ·Attach on vacuum pump. 6 Refrigerant charge base 7 Refrigerant cylinder ·Only for R410A Top of cylinder (Pink) Cylinder with syphon 8 Refrigerant recovery equipment

specifications

. (UNF1/2)

4 PART NAMES AND FUNCTIONS

 Indoor Unit

Guide vane

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

Air intake

Room air is suctioned in here.

Wireless remote controller

 When cover is open.

Filter Air intake grille

(Removes dust and dirt from the intake air.)

Air outletAir outlet

CHECK

TEST RUN

display

CHECK&TEST RUN display indicates that the unit is being checked or test-run.

MODEL SELECT

Blinks when model is selected.

display

Indicator lamp section

Swing louvers

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

display

Lights up while transmission to the indoor unit is mode using switches.

display

SET TEMP. display indicates desired temperature set.

display

OPERATION MODE display Operation mode display indicates which operation mode is in effect.

display

The vertical direction of air flow is indicated.

display

FAN SPEED display indicates which fan speed has been selected.

ON/OFF button

The unit is turned ON and OFF alternately

each time the button is pressed.

FAN SPEED SELECT button

Used to change the fan speed.

MODE SELECT button

Used to switch the operation mode between cooling, drying,heating and auto mode.

CHECK

TEST RUN

MODEL SELECT

NOT AVAILABLE

ON/OFF TEMP

FAN

MODE

CHECK

VAN E

LOUVER

TEST RUN

RESETSET CLOCK

°C

AMPM

AUTO STOP

AUTO START

min

CLOCK display

Displays the current time.

TIMER display

Displays when in timer operation or when setting timer.

“ ” “ ” display

Displays the order of timer operation.

“ ” “ ” display

Displays whether timer is on or off.

button

SET TEMPERATURE button sets any desired room temperature.

TIMER CONTROL buttons

AUTO STOP (OFF timer): when this switch is set, the air conditioner will be automatically stopped at the preset time.

AUTO START (ON timer): when this switch is

set, the air conditioner will be automatically

started at the preset time.

h and min buttons

Buttons used to set the “hour and minute” of the current time and timer settings.

CHECK-TEST RUN button

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

VANE CONTROL button

Used to change the air flow direction.

LOUVER button

Changes left / right airflow direction.

(Not available for this model)

CLOCK button

RESET button

SET button

SPECIFICATIONS

Service Ref.

Mode Power supply(phase, cycle, voltage) Input Running current Starting current External finish Heat exchanger Fan Fan(drive) x No. Fan motor output Airflow(Low-High) External static pressure

INDOOR UNIT

Operation control & Thermostat Noise level(Low-High) Unit drain pipe O.D. Dimensions

Weight

Service Ref.

Mode Power supply(phase, cycle, voltage) Input Running current Starting current External finish Heat exchanger Fan Fan(drive) x No. Fan motor output Airflow(Low-High) External static pressure

INDOOR UNIT

Operation control & Thermostat Noise level(Low-High) Unit drain pipe O.D. Dimensions

Weight

D H

A A

*/min(CFM)

Pa(mmAq)

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

kg(lbs)

A A

*/min(CFM)

Pa(mmAq)

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

kg(lbs)

PKA-RP50FAL2,PKA-RP50FAL2#1 / PKA-RP60FAL,PKA-RP60FAL#1

Cooling

Single phase, 50Hz, 230V

0.09

0.43

0.80 Munsell 3.4Y 7.7/0.8

Plate fin coil

Line flow (direct) x 2

0.040

15-20(530-705)

0(direct blow)

Wireless remote controller & built-in

39-45

20(13/16)

1,400(55-1/8)

235(9-1/4)

340(13-3/8)

24(53)

PKA-RP71FAL,PKA-RP71FAL#1

Cooling

Single phase, 50Hz, 230V

0.09

0.43

0.80 Munsell 3.4Y 7.7/0.8

Plate fin coil

Line flow (direct) x 2

0.040

15-20(530-706)

0(direct blow)

Wireless remote controller & built-in

39-45

20(13/16)

1,400(55-1/8)

235(9-1/4)

340(13-3/8)

24(53)

Heating

0.09

0.43

0.80

Heating

0.09

0.43

0.80

Service Ref.

Mode Power supply(phase, cycle, voltage) Input Running current Starting current External finish Heat exchanger Fan Fan(drive) x No. Fan motor output Airflow(Low-High) External static pressure

INDOOR UNIT

Operation control & Thermostat Noise level(Low-High) Unit drain pipe O.D. Dimensions

Weight

D H

A A

*/min(CFM)

Pa(mmAq)

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

kg(lbs)

PKA-RP100FAL,PKA-RP100FAL#1

Cooling

Single phase, 50Hz, 230V

0.11

0.52

0.90 Munsell 3.4Y 7.7/0.8

Plate fin coil

Line flow (direct) x 2

0.070

22-28(780-990)

0(direct blow)

Wireless remote controller & built-in

41-46

26(1)

1,680(66-1/8)

235(9-1/4)

340(13-3/8)

28(62)

Heating

0.11

0.52

0.90

Service Ref.

Mode Power supply(phase, cycle,voltage) Input +1 Running current +1 Starting current +1 External finish Heat exchanger Fan Fan(drive) x No. Fan motor output Airflow(Low-High) External static pressure

INDOOR UNIT

Booster heater +1 Operation control & Thermostat Noise level(Low-High) Unit drain pipe O.D. Dimensions

Weight

*/min(CFM)

D H

A A

Pa(mmAq)

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

kg(lbs)

Cooling

PKH-P60FALH

Single phase, 50Hz, 230V

0.09

0.43

0.80 Munsell 3.4Y 7.7/0.8

Plate fin coil

Line flow (direct) x 2

0.040

15-20 (530-706)

0(direct blow)

<1.93>

Wireless remote controller & built-in

39-45

20(13/16)

1,400(13/16)

235(9-1/4)

340(13-3/8)

26(57)

Heating

0.09<1.93>

0.43<8.39>

0.80<8.39>

Service Ref.

Mode Power supply(phase, cycle,voltage) Input +1 Running current +1 Starting current +1 External finish Heat exchanger Fan Fan(drive) x No. Fan motor output Airflow(Low-High) External static pressure

INDOOR UNIT

Booster heater +1 Operation control & Thermostat Noise level(Low-High) Unit drain pipe O.D. Dimensions

Weight

Service Ref.

Mode Power supply(phase, cycle,voltage) Input +1 Running current +1 Starting current +1 External finish Heat exchanger Fan Fan(drive) x No. Fan motor output Airflow(Low-High) External static pressure

INDOOR UNIT

Booster heater +1 Operation control & Thermostat Noise level(Low-High) Unit drain pipe O.D. Dimensions

Weight

+1 : < > Shows the only booster heater rating.

D H

A A

*/min(CFM)

Pa(mmAq)

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

kg(lbs)

A A

*/min(CFM)

Pa(mmAq)

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

kg(lbs)

Cooling

PKH-P71FALH

Single phase, 50Hz, 230V

0.09

0.43

0.80 Munsell 3.4Y 7.7/0.8

Plate fin coil

Line flow (direct) x 2

0.040

15-20 (530-706)

0(direct blow)

<1.93>

Wireless remote controller & built-in

39-45

20(13/16)

1,400(13/16)

235(9-1/4)

340(13-3/8)

26(57)

PKH-P100FALH

Cooling

Single phase, 50Hz, 230V

0.11

0.52

0.90 Munsell 3.4Y 7.7/0.8

Plate fin coil

Line flow (direct) x 2

0.070

22-28(777-988)

0(direct blow)

<2.20>

Wireless remote controller & built-in

41-46

20(13/16)

1,680(66-1/8)

235(9-1/4)

340(13-3/8)

30(66)

Heating

0.09<1.93>

0.43<8.39>

0.80<8.39>

Heating

0.11<2.20>

0.52<9.57>

0.90<9.57>

6 NOISE CRITERION CURVES

PKA-RP50FAL2 PKA-RP50FAL2#1 PKA-RP60/71FAL PKA-RP60/71FAL#1 PKH-P60/71FALH

APPROXIMATE

THRESHOLD OF HEARING FOR

OCTAVE BAND SOUND PRESSURE LEVEL, dB(0dB=0.0002 μbar)

CONTINUOUS NOISE

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

NOTCH

High

Low

SPL(dB)39LINE

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

PKA-RP100FAL PKA-RP100FAL#1 PKH-P100FALH

APPROXIMATE

THRESHOLD OF

OCTAVE BAND SOUND PRESSURE LEVEL, dB(0dB=0.0002 μbar)

HEARING FOR CONTINUOUS NOISE

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

NOTCH

High

Low

SPL(dB)

46 41

LINE

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

UNIT

MICROPHONE

WALL

)

OUTLINES AND DIMENSIONS

PKA-RP50FAL2 PKA-RP50FAL2#1 PKH-P60FALH PKA-RP60FAL PKA-RP60FAL#1 PKH-P71FALH PKA-RP71FAL PKA-RP71FAL#1

To p

62.5

552

235

Liquid pipe

Air outlet

183

240

Left side

Knockout hole for left piping

Drain hose for left-hand side piping

340

235

552

Air outlet

235

1090

1110

235

Front

1400

Air intake

Drain hose

Lower side

Auto vanes

1120

Display section

Receiving section

Right side

235

197

Terminal block for indoor/outdoor connecting line

(Gas pipe)

55 120

(Liquid pipe)

Liquid pipe :9.52(3/8F) Gas pipe :15.88(5/8F)

Emergency switch(Heat)

Emergency switch(Cool)

Defrosting Initial heating lamp

Power lamp

Knockout hole for right piping

Refrigerant pipe. Drain pipe

Terminal block for heater (PKH only

Gas pipe

Bolt

Drain hose O.D.20

107 111

Unit : mm

Wall fixture

66-ø6 hole for tapping screw

32-ø12 hole for bolt

225

Under panel Removable at left-hand

side piping

Unit center

990

10 91=(910)

12-ø6 hole for tapping screw

900

Drainage range on left-hand side

240 280 314

Drainage range on right-hand side

180

Range for left rear piping opening

Knockout hole for under-piping

Refrigerant pipe. Drain pipe

455

610

245

285

Louvers (manual)

2980

3030

18430

Rear piping opening

280

:90

Through hole

:90~ :100

Sleeve

1 Sleeves are availaable

on the market.

Use the current nuts meeting the pipe size of the outdoor unit.

Knockout hole for wiring

AB C

100

439

Available pipe size

RP50

LIQUID SIDE



6.35

: 9.52 :



12.7

15.88

GAS SIDE

100

RP60,71 / P60,71



9.52

:15.88

:Initial flare nut size

PKH-P100FALH PKA-RP100FAL PKA-RP100FAL#1

Unit : mm

Left side

340

Knockout hole for left piping

Drain hose for left-hand side piping

To p

Display section

62.5

Emergency switch(Heat)

235

Front

235

Knockout hole for right piping

Receiving

section

1680

Air intake

1370

197

Liquid pipe

Terminal block for indoor/outdoor connecting line

1400

Air outlet

694

Under panel

(Removable at left-hand side piping)

Auto vane

1110

Drain hose

Lower side

Air outlet

694

Louvers (manual)

183

240

55 120

(Liquid pipe)

Emergency switch(Cool)

Defrosting Initial heating lamp

Power lamp

Right side

235

(Gas pipe)

102 111

Available pipe size

LIQUID SIDE

GAS SIDE

: Initial flare nut size

Terminal block for heater (PKH only)

Gas pipe

Bolt

Drain hose O.D.20

RP100

:9.52

P100

:9.52 :15.88 :19.05

:19.05

84-ø6 hole for tapping screw

41-ø12 hole for bolt

Unit out line

Wall fixture

Drainage range on left-hand side

295 225

Knockout hole for under-piping

Refrigerant pipe. Drain pipe

Unit center

1270

13 91=(1183)

240 280 314

595

900

Drainage range on right-hand side

180

750

Range for left rear piping openingRange for left rear piping opening

245

285

2980

3030

18430

Rear piping opening

280

100

439

Knockout hole for wiring

AB C

100

8 WIRING DIAGRAM

PKA-RP50FAL2 PKA-RP60FAL PKA-RP71FAL PKA-RP100FAL PKA-RP50FAL2#1 PKA-RP60FAL#1 PKA-RP71FAL#1 PKA-RP100FAL#1 PKH-P60FALH PKH-P71FALH PKH-P100FALH

SYMBOL NAME P. B I.B

INDOOR POWER BOARD

INDOOR CONTROLLER BOARD FUSE FUSE(T6.3AL250V) ZNR VARISTOR CN2L CONNECTOR(LOSSNAY) CN32 CONNECTOR(REMOTE SWITCH) CN41 CONNECTOR(HA TERMINAL-A) CN51 CONNECTOR(CENTRALLY CONTROL) SW1 SWITCH (MODEL SELECTION) SW2 SWITCH (CAPACITY CODE) SWE SWITCH(EMERGENCY OPERATION) X4 RELAY(FAN MOTOR) BCR

FAN CONTROL ELEMENT

LED1 POWER SUPPLY(I.B)

POWER SUPPLY(R.B)

LED2

TRANSMISSION(INDOOR-OUTDOOR)LED3

P. B

2 3

I.B

FAN

(

WHT

BCR

RED

1 3 5

)

POWER

CNDK (RED)

RED

BLK

WHT

LED3 LED2 LED1

SW2 SW1

SWE

ON OFF

Refer to tables 1 and 2 for service PCB.

Table 1

SW1

Service board

1 2 3 4 5

ON OFF

See Table 1.

See Table 2.

CNDK (RED)

DC13.1V

2 3

WHT

POWER

CND

(ORN)

Table 2

MODELS

PKA-RP60FAL PKH-P60FALH PKA-RP50FAL2

SYMBOL NAME C CAPACITOR(FAN MOTOR) MF MV TB2

TB4

TB5

TH1

TH2

TH5

FAN MOTOR VANE MOTOR TERMINAL BLOCK (HEATER)

models only or option for PKA-RP.FAL(2) models. TERMINAL BLOCK(INDOOR/OUTDOOR

CONNECTING LINE) TERMINAL BLOCK(REMOTE CONTROLLER TRANSMISSION LINE )(OPTION) ROOM TEMP.THERMISTOR



/15k, 25/5.4k DETECT)

(0 PIPE TEMP.THERMISTOR/LIQUID



/15k, 25/5.4k DETECT)

(0 COND./EVA.TEMP.THERMISTOR



/15k, 25/5.4k DETECT)

PKH-P.FALH

W.B

RU BZ LED1 LED2 SW1 SW2

R.B

TB6

HEATER

FS1,2

H1 26H 88H

Please set the voltage

CN2S

(WHT)

1 2

YLW

ORN

BLK

POWER CN2D(WHT)

FUSE

ZNR

INTAKE CN20

(

RED

1 2

CN41 CN2L

CN51 CN32

LIQUID CN21

(

)

WHT

1 2

Service board Service board Service board

1 2 3 4 5

using the remote controller. For the setting method, please refer to the indoor unit Installation Manual

TB4

YLW ORN ORN

WHT

)

TH2

ON OFF

PIPE CN29

(

BRN

VAN E

1 31 31 3 1 2

REMOCON CN22

)

(

CN6V

(

GRN

WIRELESS CN90

(

WHT

)

BLU

1 2

INDOOR/OUTDOOR COMMUNICATION CN3C(BLU)

BLK

1 2

TH5TH1

SW2

MODELS

PKA-RP71FAL

1 2 3 4 5

PKH-P71FALH

OUTDOOR

UNIT

YLW

I.B

POWER

CND

(ORN)

)

TRANSMISSION WIRES DC12V

TB5

MODELS

PKA-RP100FAL

PKH-P100FALH

OFF

PKH-P60 P100FALH models only

RED BLU

GRN/YLW

YLW ORN

ORN BRN

NAMESYMBOL



10A:60,71FALH/

TB2

TB4

WIRELESS REMOTE CONTROLLER BOARD RECEIVING UNIT BUZZER LED(RUN INDICATOR ) LED(HOT ADJUST) SWITCH(HEATING ON/OFF) SWITCH(COOLING ON/OFF) WIREDREMOTE CONTROLLER BOARD(OPTION) TERMINAL BLOCK(REMOTE CONTROLLER TRANSMISSION LINE)

THERMAL FUSE(117 117



16A:100FALH) HEATER HEATER THERMAL SWITCH HEATER CONTACTOR

1 (Fig.1)

ORN

3131

INDOOR/OUTDOOR

COMMUNICATION

CN3C

(BLU)

RECEIVER

1 2 3 4 5

LED1 LED2 SW2 SW1

R.B

ON OFF

POWER SUPPLY (1PHASE) 230V 50Hz

TO OUTDOOR UNIT

CNB

W.B

TB6

I.B

YLW

88H

HEATER

CN24 (YLW)

26H

RED

REDGRY

FS1

FS2

WHT

REDRED 5 3RED

BLU

TB2

L N

POWER SUPPLY (1PHASE) 230V 50Hz

88H

1 2

GRN/YLW

NOTES:

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

2. Indoor and outdoor connecting wires are made with polarities, make wiring matching terminal numbers (S1, S2, S3).

3. Make sure that the main power supply of the booster heater is independent.

4. Symbols used in wiring diagram above are, : Connector, : Terminal (block).

1. When work to supply power separately to Indoor and Outdoor unit was applied, refer to Fig 1.

2. For power supply system of this unit, refer to the caution label located near this diagram.

1313

REFRIGERANT SYSTEM DIAGRAM

PKA-RP50FAL2 PKA-RP50FAL2#1 PKA-RP60FAL PKA-RP60FAL#1 PKH-P60FALH PKA-RP71FAL PKA-RP71FAL#1 PKH-P71FALH PKA-RP100FAL PKA-RP100FAL#1 PKH-P100FALH

Strainer #50

Heat exchanger

Refrigerant GAS pipe connection (Flare)

Condenser/evaporator temperature thermistor (TH5)

Refrigerant LIQUID pipe connection (Flare)

Pipe temperature

Room temperature thermistor (TH1)

Distributor with strainer #50

thermistor/liquid (TH2)

Strainer #50

Refrigerant flow in cooling Refrigerant flow in heating

10 TROUBLESHOOTING

10-1. TROUBLESHOOTING

Present and past error codes are logged and displayed on the wired remote controller or controller board of outdoor unit. Actions to be taken for service and the trouble reoccurrence at field are summarized in the table below. Check the contents below before investigating details.

Unit conditions at service

The trouble is reoccurring.

The problem is not reoccurring.

Error code

Displayed

Not displayed

Logged

Not logged

Actions to be taken for service (summary)

Judge what is wrong and take a corrective action according to “SELF-DIAGNOSIS ACTION TABLE” (10-3).

Conduct troubleshooting and ascertain the cause of the trouble according to “TROUBLESHOOTING BY INFERIOR PHENOMENA ” (10-4).

Consider the temporary defects such as the work of protection devices in the refrigerant circuit including compressor, poor connection of wiring, noise and etc. Re-check the symptom, and check the installation environment, refrigerant amount, weather when the trouble occurred, matters related to wiring and etc. Reset error code logs and restart the unit after finishing service. There is no abnormality in electrical component, controller board, remote controller and etc.

Re-check the abnormal symptom. Conduct troubleshooting and ascertain the cause of the

trouble according to “TROUBLESHOOTING BY INFERIOR PHENOMENA ” (10-4). Continue to operate unit for the time being if the cause is not ascertained. There is no abnormality concering of parts such as electrical component, controller board, remote controller and etc.

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