Mitsubishi Electric PCA-RP71HA, PCA-RP125HA, PCA-RP125HA,PCA-RP125HA Service Manual

SERVICE MANUAL

No. OC329

REVISED EDITION-B

INDOOR UNIT

REMOTE CONTROLLER

Indoor unit
[Model names] [Service Ref.]

PCA-RP71HA

PCA-RP71HA

PCA-RP71HA#1

PCA-RP125HA

PCA-RP125HA

PCA-RP125HA#1

CONTENTS

1. TECHNICAL CHANGES

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

2

2. REFERENCE MANUAL

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

2

3. SAFETY PRECAUTION

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

3

4. PART NAMES AND FUNCTIONS

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

7

5. SPECIFICATIONS

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

9

6. NOISE CRITERION CURVES

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

10

7. OUTLINES AND DIMENSIONS

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

11

8.

WIRING DIAGRAM

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

.

13

9.

REFRIGERANT SYSTEM DIAGRAM

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

14

10. TROUBLESHOOTING

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

15

11. SPECIAL FUNCTION

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

26

12. DISASSEMBLY PROCEDURE

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

29

13. PARTS LIST

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

33

14. RoHS PARTS LIST

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

36

ON/OFF

TEMP.

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

May 2008

Model name
indication

Revision:

• PCA-RP71·125HA#1 are added
in REVISED EDITION-B.

• Some descriptions have been
modified.

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.

• Please void OC329

REVISED EDITION-A.

2

2-1. OUTDOOR UNIT’S SERVICE MANUAL

2-2. TECHNICAL DATA BOOK

2

REFERENCE MANUAL

TECHNICAL CHANGES

1

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

(1)

PUHZ-RP100/125/140YHA

OC334

PUHZ-RP71/100/125/140VHA

(1)

-A OC337

PUHZ-RP200/250YHA

(1)(2)

OC338

PUHZ-RP200/250YHA

(1)

-A OC339
PU(H)-P • VGAA.UK
PU(H)-P • YGAA.UK

OC336

PUHZ-P100/125/140VHA.UK OC359
PUHZ-RP35/50/60/71/100/125/140VHA2

(1)

PUHZ-RP100/125/140YHA2

(1)

PUHZ-RP35/50/60/71/100VHA3
PUHZ-RP100YHA3

OC374

PU(H)-P71/100VHA

(1)

.UK

PU(H)-P100/125/140YHA

(1)

.UK

OC379

PUHZ-P100/125/140VHA2

(1)

.UK OCH415 / OCB415
PUHZ-RP71/100/125/140VHA2-A
PUHZ-RP100/125/140YHA2-A

OCH422 / OCB422

PUHZ-BP100/125/140VHA-A
PUHZ-BP200/250YHA-A

OCH423 / OCB423

PUHZ-P200/250YHA2 OCH424 / OCB424
PUHZ-HRP71/100VHA
PUHZ-HRP100/125YHA

OCH425 / OCB425

PUHZ-RP200/250YHA2 OCH428 / OCB428

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

PCA-RP71HA PCA-RP71HA#1
PCA-RP125HA PCA-RP125HA#1

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

33

SAFETY PRECAUTION

3

Cautions for units utilising refrigerant R407C

3-2. CAUTIONS RELATED TO NEW REFRIGERANT

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.

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 charge 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.

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.

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

3-1. ALWAYS OBSERVE FOR SAFETY

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

4

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.

—

[3] Service tools

Use the below service tools as exclusive tools for R407C 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)

(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.

Gravimeter

Unit

[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.

5

Cautions for units utilising refrigerant R410A

CAUTIONS RELATED TO NEW REFRIGERANT

Use new refrigerant 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.

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.)

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

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

· For RP71VHA3 and RP125 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.

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.

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.

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.

Do not use a charging cylinder.

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

Flare tool

Electronic refrigerant
charging scale

Vacuum pump adaptor

Size adjustment gauge

Gauge manifold

Torque wrench

Gas leak detector

Charge hose

Tools for R410A

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

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

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

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

(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.)

6

[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

specifications

. (UNF1/2)

·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

Gravimeter

Unit

77

4

PART NAMES AND FUNCTIONS

 Indoor (Main) Unit

Air outlet

Air intake

Oil filter (Air intake)

+ It prevents oil from
getting into the unit.

Left/right guide vanes

Change the direction of airflow
from the horizontal blower.

Up/down guide vanes

Change the direction of airflow from the
vartical blower.

 Remote controller

Once the controls are set, the same operation mode can be repeated by simply pressing the ON/OFF button.

 Operation buttons

PAR-21MAA

ON/OFF

FILTER

CHECK

OPERATION

CLEAR

TEST

TEMP.

MENU

BACK DAY

MONITOR/SET

CLOCK

ON/OFF

Set Temperature buttons

Down
Up

Timer Menu button
(Monitor/Set button)

Mode button (Return button)

Set Time buttons

Back
Ahead

Timer On/Off button
(Set Day button)

Opening the
door.

ON/OFF button

Fan Speed button

Filter button
(<Enter> button)

Test Run button

Check button (Clear button)

Airflow Up/Down button

Louver button
( Operation button)

To preceding operation
number.

Ventilation button
(

Operation button)

To next operation number.

8

 Display

For purposes of this explanation,
all parts of the display are shown
as lit. During actual operation, only
the relevant items will be lit.

°F°C

°F°C

ERROR CODE

AFTER

TIMER

TIME SUN MON TUE WED THU FRI SAT

ON
OFF

Hr
AFTER

FILTER

FUNCTION

ONLY1Hr.

WEEKLY

SIMPLE

AUTO OFF

Identifies the current operation

Shows the operating mode, etc.
* Multilanguage display is sup-

ported.

“Centrally Controlled” indicator

Indicates that operation of the re­mote controller has been prohib­ited by a master controller.

“Timer Is Off” indicator

Indicates that the timer is off.

Temperature Setting

Shows the target temperature.

Day-of-Week

Shows the current day of the week.

Time/Timer Display

Shows the current time, unless the simple or Auto Off
timer is set.
If the simple or Auto Off timer is set, shows the time
remaining.

“Sensor” indication

Displayed when the remote controller
sensor is used.

“Locked” indicator

Indicates that remote controller but­tons have been locked.

“Clean The Filter” indicator

Comes on when it is time to clean the
filter.

Timer indicators

The indicator comes on if the corre­sponding timer is set.

Up/Down Air Direction indica­tor

The indicator shows the direc­tion of the outcoming airflow.

“One Hour Only” indicator

Displayed if the airflow is set to
low and downward during COOL
or DRY mode. (Operation varies
according to model.)
The indicator goes off after one
hour, at which time the airflow di­rection also changes.

Room Temperature display

Shows the room temperature.

Louver display

Indicates the action of the swing
louver. Does not appear if the
louver is stationary.

(Power On indicator)

Indicates that the power is on.

Fan Speed indicator

Shows the selected fan speed.

Ventilation indicator

Appears when the unit is running in
Ventilation mode.

Caution

 Only the Power on indicator lights when the unit is stopped and power supplied to the unit.
 If you press a button for a feature that is not installed at the indoor unit, the remote controller will display the “Not Available”

message.
If you are using the remote controller to drive multiple indoor units, this message will appear only if he feature is not
present at every unit connected.
 When power is turned ON for the first time, it is normal that “PLEASE WAIT” is displayed on the room temperature indication

(For max. 2minutes). Please wait until this “PLEASE WAIT” indication disappear then start the operation.

99

SPECIFICATIONS

5

kW

A
A

kW

*/min(CFM)

Pa(mmAq)

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

kg(lbs)

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

Weight

W

D
H

INDOOR UNIT

PCA-RP125HA, PCA-RP125HA#1

Cooling

0.26

1.19

2.38

Heating

0.26

1.19

2.38

Single phase, 50Hz, 230V

Stainless steel

Plate fin coil

Sirocco fan (direct) x 4

0.08 + 0.08

30-38(1,060-1,350)

0(direct blow)

Remote controller & built-in

44-50

26(1)

1,520(59-7/8)

650(25-5/8)

280(11)
56(124)

Cooling

0.09

0.43

0.86

Heating

0.09

0.43

0.86

Single phase, 50Hz, 230V

Stainless steel

Plate fin coil

Sirocco fan (direct) x 2

0.04

17-19(600-670)

0(direct blow)

Remote controller & built-in

34-38

26(1)

1,136(44-3/4)

650(25-5/8)

280(11)

41(90)

PCA-RP71HA, PCA-RP71HA#1

kW

A
A

kW

*/min(CFM)

Pa(mmAq)

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

kg(lbs)

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

Weight

W

D
H

INDOOR UNIT

10

90

80

70

60

50

40

30

20

10

63 125 250 500 1000 2000 4000 8000

APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

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

BAND CENTER FREQUENCIES, Hz

PCA-RP71HA
PCA-RP71HA#1

NOTCH

High

Low

SPL(dB)

38
34

LINE

90

80

70

60

50

40

30

20

10

63 125 250 500 1000 2000 4000 8000

APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

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

BAND CENTER FREQUENCIES, Hz

PCA-RP125HA
PCA-RP125HA#1

NOTCH

High
Low

SPL(dB)

50
44

LINE

1m

1m

unit

about 1.4m

MICROPHONE

ceiling

NOISE CRITERION CURVES

6

11

Ceiling

Less than

Less than

or more

Less than

or more

or more

300

<Suspension bolt pitch>

model:PAC-SG38KF-E (12pcs.)

Filter element for the exchange

1.Use M10 or W3/8 screw for anchor bolt.

NOTES.

(122 )

<Filter contour dimension>

16

handle

100

1001136

366

480

176

318

650

<Flexible hose(accessory)>

Terminal block box

78

Inspection port

(pipe sensor)

The half bottom of FAN CASING

can be separated.

Adjustable part

288

360

<Air outlet>

<Suspension bolt pitch>

<Air outlet>

<Air intake>

<Air intake>

Filter (3-pieces)

Terminal block bo

5

2

1

4

3

6

9

2

1

38

105

85

90°

Electrical box

Rear wall

500

250

2 ~ 3

(Gap to ceiling)

Allowing clearances

<gas>
<liquid>

Suspension bolt

130

210

45

165

120

1224

1180

75

1136

986

1098

70

243

254

175

197

110

21

130 15

258 110 102

320 80

90

14018

75

70~90

650

13

289

75

280

495

43

295

:222

:200

Refrigerant-pipe connection(gas pipe side/flared connection : 5/8F)

Refrigerant-pipe connection(liquid pipe side/flared connection : 3/8F)

Flexible hose(accessory) Drainage pipe connection(26mm I.D.)

Knockout hole for behind refrigerant-piping arrangement

Knockout hole for upper refrigerant-pipe arrangement

Knockout hole for wiring arrangement : 2- : 27

Terminal block(indoor/outdoor connecting line)

Terminal block(remote controller)

Knockout hole (duct for fresh air intake): 2- : 200

Option parts:duct flange( : 200). model: PAC-SF28OF-E(1 pc.)

PCA-RP71HA
PCA-RP71HA#1

OUTLINES AND DIMENSIONS

7

Unit : mm

12

Ceiling

Less than

Less than

Less than

or more

or more

or more

Allowing clearances

Rear wall

(Gap to ceiling)

NOTES.

1.Use M10 or W3/8 screw for anchor bolt.

Use the current nuts meeting the pipe size

of the outdoor unit.

model:PAC-SG38KF-E (12pcs.)

Filter element for the exchange

<Suspension bolt pitch>

(122)246

handle

16

<Flexible hose(accessory)>

Terminal block box

78

<Filter contour dimension>

Inspection port

(pipe sensor)

The half bottom of FAN CASING

can be separated.

Adjustable part

288

360

<Air outlet>

<Suspension bolt pitch>

<Air outlet>

<Air intake>

<Air intake>

Filter (4-pieces)

Terminal block box

5

2

1

4

3

6

9

2

1

176

38 210

105

8545

165

:222

:200

440440298

130

90°

650

300

1001520100

Electrical box

500

250

2~3

<gas>
<liquid>

Suspension bolt

70

243

254

175

197

110

21

130 15

258

1482

110 102

1370 75

1608

320 801564

1520

90 120

14018

75

70~90

650

13

289

75

280

495

43

295

Refrigerant-pipe connection(gas pipe side/flared connection : 5/8F, 3/4F)

Refrigerant-pipe connection(liquid pipe side/flared connection : 3/8F)

Flexible hose(accessory) Drainage pipe connection(26mm I.D.)

Knockout hole for behind refrigerant-piping arrangement

Knockout hole for upper refrigerant-pipe arrangement

Knockout hole for wiring arrangement : 2- : 27

Terminal block(indoor/outdoor connecting line)

Terminal block(remote controller)

Knockout hole (duct for fresh air intake) : 2- : 200

Option parts:duct flange( : 200). model: PAC-SF28OF-E(1 pc.)

: 9.52

RP125

: 15.88

: 19.05

Available pipe size

 LIQUID SIDE

 GAS SIDE

: Initial flare nut size

PCA-RP125HA
PCA-RP125HA#1

Unit : mm

1313

PCA-RP71HA PCA-RP125HA
PCA-RP71HA#1 PCA-RP125HA#1

SYMBOL

[ LEGEND ]

NAME SYMBOL NAME
INDOOR POWER BOARD
INDOOR CONTROLLER BOARD
FUSE (T6.3AL250V)

MF1, MF2
C1, C2
H2

FAN MOTOR
CAPACITOR(FAN MOTOR)

DEW PREVENTION HEATER
VARISTOR
CONNECTOR (LOSSNAY)
CONNECTOR (REMOTE SWITCH)
CONNECTOR (HA TERMINAL-A)
CONNECTOR (CENTRALLY CONTROLL)
POWER SUPPLY (I. B)
POWER SUPPLY (R. B)
TRANSMISSION(INDOOR-OUTDOOR)
RELAY (DEW PREVENTION HEATER)
RELAY(FAN MOTOR)
RELAY(FAN MOTOR)
RELAY(FAN MOTOR)
SWITCH (MODEL SELECTION)

See T able 1.
SWITCH (CAPACITY CODE) See Table 2.
SWITCH (EMERGENCY OPERATION)

P. B
I. B

FUSE
ZNR
CN2L
CN32
CN41
CN51
LED1
LED2
LED3
X1
X4
X5
X6
SW1

TB2

TB4

TB5,TB6

TH1

TH2

TH5

R. B

TERMINAL BLOCK(INDOOR UNIT
POWER (OPTION))
TERMINAL BLOCK(INDOOR/OUTDOOR
CONNECTING LINE)
TERMINAL BLOCK(REMOTE CONTROLLER
TRANSMISSION LINE)
ROOM TEMP.THERMISTOR
(0°C/15k, 25°C/5.4k DETECT)
PIPE TEMP.THERMISTOR/LIQUID
(0°C/15k, 25°C/5.4k DETECT)
COND./ EVA.TEMP.THERMISTOR
(0°C/15k, 25°C/5.4k DETECT)

WIRED REMOTE CONTROLLER BOARD
SW2
SWE

Service board

SW1

Table 1

1 2 3 4 5

ON
OFF

Service board

SW2

Table 2

1 2 3 4 5

MODELS

PCA-RP71HA

ON
OFF

Service board

1 2 3 4 5

MODELS

PCA-RP125HA

ON
OFF

1357

MF1

BLU

BLK

WHT

YLW

BLU

BLK

WHT

YLW

ORN

ORN

C1

RED

RED

13 13 13 12

1
2

1
2

3

13

11

654321

MF2

BLU

YLW

YLW

ORN

BLK

RED

WHT

WHT

YLW

BLK

WHT

YLW

BLU

BLK

WHT

YLW

ORN

BRN

C2

GRY

RED

654321

D.HEATER
CNC
(RED)

For PCA-RP125HA, PCA-RP125HA#1

X6 X5 X4

X6 X5 X4

ZNR

FUSE

SWE

FAN

(WHT)

SW2 SW1

LED3 LED2 LED1

H2

OFF

ON

12 12 12

12 13

12

WHT

WHT

REMOCON

CN22
(BLU)

TH1 TH2 TH5

BLU

BLU

BLK

BLK

1

2

2

1

TB5

INTAKE

CN20
(RED)

LIQUID

CN21

(WHT)

PIPE
CN29
(BLK)

R.B

TB6

TRANSMISSION WIRES DC12V

CN41 CN2L

CN32CN51

ROWER

CNDK

(RED)

ROWER

CND

(ORN)

DC13.1V

CNDK

(RED)

CN2S

(WHT)

P.B

I.B

BRN

YLW
ORN
ORN

S1

S2

S3

TB4

TO
OUTDOOR
UNIT

ROWER

CN2D(WHT)

INDOOR/OUTDOOR

COMMUNICATION

CN3C(BLU)

Refer to tables 1
and 2 for service PCB.

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

3131

POWER

CND

(ORN)

INDOOR/OUTDOOR
COMMUNICATION

CN3C
(BLU)

TB4

POWER
SUPPLY
~(1PHASE)
230V 50Hz

RED

TB2

BLU

TO
OUTDOOR
UNIT

L

S1
S2

S3

N

I.B

YLW

ORN

ORN
ORN

YLW

GRN/YLW

BRN

+1 (Fig.1)

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.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 Fig1.
2 ; For power supply system of this unit, refer to the caution label located near this diagram.

WIRING DIAGRAM

8

14

PCA-RP71HA PCA-RP71HA#1
PCA-RP125HA PCA-RP125HA#1

Pipe temperature
thermistor/liquid
(TH2)

Distributor
with strainer
#50

Condenser/evaporator
temperature thermistor
(TH5)

Room temperature
thermistor (TH1)

Refrigerant flow in cooling
Refrigerant flow in heating

Strainer
#50

Strainer
#50

Heat exchanger

Refrigerant GAS pipe connection
(Flare)

Refrigerant LIQUID pipe connection
(Flare)

REFRIGERANT SYSTEM DIAGRAM

9

15

<Error code display by self-diagnosis and actions to be taken for service (summary)>

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.
Note : Refer to the manual of outdoor unit for malfunction-diagnosis method by remote controller.

10-1. TROUBLESHOOTING

Unit conditions at service

Error code

Actions to be taken for service (summary)

The trouble is reoccurring.

Displayed

Not displayed

Judge what is wrong and take a corrective action
according to “SELF-DIAGNOSIS ACTION TABLE” (10-2).

Conduct troubleshooting and ascertain the cause of the
trouble according to “TROUBLESHOOTING
BY INFERIOR PHENOMENA ” (10-3).

The trouble is not reoccurring.

Logged

Not logged

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, and wiring related.
Reset error code logs and restart the unit after finishing
service.
There is no abnormality in electrical components,
controller boards, and remote controller.

Recheck the abnormal symptom.
Identify the cause of the trouble and take a corrective

action according to “TROUBLESHOOTING BY
INFERIOR PHENOMENA ” (10-3).
Continue to operate unit for the time being if the cause
is not ascertained.
There is no abnormality in electrical components,
controller boards, remote controller etc.

TROUBLESHOOTING

10

16

10-2. SELF-DIAGNOSIS ACTION TABLE

Note: Refer to the manual of outdoor unit for the details of display
such as F, U, and other E.

Error Code

Abnormal point and detection method

Cause

Countermeasure

P1

P2

P4

Drain sensor (DS)

1 Suspensive abnormality, if short/open

of thermistor is detected for 30 seconds
continuously.Compressor and indoor fan
will be turned off

2 Short/open is detected for 30 seconds

continuously during suspensive
abnormality.
(The unit returns to normal operation,
if it has normally reset.)
3 Detect the following condition.

• During cooling and drying operation.

• In case that pipe <liquid> temperature ­room temperature <-10deg

(Except defrosting)

• When pipe <liquid> temperature or
room temperature is short/open

temperature.

• During drain pomp operation.

1 Defective thermistor
characteristics
2 Contact failure of connector

(CN31) on the indoor controller

board. (Insert failure).
3 Breaking of wire or contact
failure of drain sensor wiring.

4 Defective indoor controller board.

1–3 Check resistance value of thermistor.

0:

......

6.0k"

10:

....

3.9k"

20:

....

2.6k"

30:

....

1.8k"

40:

....

1.3k"

2 Check contact failure of connector (CN31)

on the indoor controller board. Refer to 10-6.
Turn the power on again and check restart

after inserting connector again.
4 Replace indoor controller board if drain
pump operates with the line of drain sensor

connector CN31-1 and 2 is short-circuited,

and abnormality reappears.
Turn the power off, and on again to operate

after check.

P5

Malfunction of drain pump (DP)

1 Suspensive abnormality, if thermistor
of drain sensor is let heat itself and
temperature rises slightly. Compressor

and indoor fan will be turned off.

2 Drain pomp is abnormal if the condition

above is detected during suspensive
abnormality.

3 Constantly detected during drain pump

operation.

1 Malfunction of drain pump
2 Defective drain

Clogged drain pump
Clogged drain pipe

3

Attached drop of water at the

drain sensor

• Drops of drain trickles from
lead wire.

• Clogged filter is causing
wave of drain.

4 Defective indoor controller board.

1 Check if drain-up machine works.
2 Check drain function.
3 Check the setting of lead wire of drain sensor

and check clogs of the filter.
4 Replace indoor controller board if drain
pump operates with the line of drain sensor

connector CN31-1 and 2 is short-circuited

and abnormality reappears.
Refer to 10-6.

Turn the power off, and on again to operate
after check.

Room temperature thermistor (TH1)

1 The unit is in 3-minute resume
prevention mode if short/open of
thermistor is detected. Abnormal if the

unit does not reset normally after 3 min­utes. (The unit returns to normal opera-

tion, if it has been reset normally.)
2 Constantly detected during cooling,
drying, and heating operation.
Short: -90: or more
Open: -40: or less

1 Defective thermistor
characteristics
2 Contact failure of connector

(CN20) on the indoor controller

board (Insert failure)
3 Breaking of wire or contact
failure of thermistor wiring
4 Defective indoor controller

board

1–3 Check resistance value of thermistor.

0: 15.0k"
10: 9.6k"
20: 6.3k"
30: 4.3k"

40: 3.0k"
If you put force on (draw or bend) the lead wire
with measuring resistance value of thermis­tor, breaking of wire or contact failure can be
detected.
2 Check contact failure of connector (CN20)

on the indoor controller board. Refer to 10-6.
Turn the power on again and check restart
after inserting connector again.

4 Check room temperature display on remote

controller.

Replace indoor controller board if there is

abnormal difference with actual room

temperature.
Turn the power off, and on again to operate

after check.

Pipe temperature thermistor/Liquid
(TH2)

1 The unit is in 3-minute resume
prevention mode if short/open of
thermistor is detected. Abnormal if the

unit does not reset normally after 3 min­utes. (The unit returns to normal opera-

tion, if it has been reset normally.)
2 Constantly detected during cooling,
drying, and heating (except defrosting)

operation
Short: 90: or more
Open: -40: or less

1 Defective thermistor
characteristics
2 Contact failure of connector

(CN44) on the indoor control-

ler board (Insert failure)
3 Breaking of wire or contact
failure of thermistor wiring
4 Defective refrigerant circuit is

causing thermistor tempera-

ture of 90: or more or -40:

or less.
5 Defective indoor controller

board

1–3 Check resistance value of thermistor.
For characteristics, refer to (P1) above.
2 Check contact failure of connector (CN44)

on the indoor controller board. Refer to 10-6.
Turn the power on and check restart after
inserting connector again.

4 Check pipe <liquid> temperature with remote

controller in test run mode. If pipe <liquid>
temperature is extremely low (in cooling
mode) or high (in heating mode), refrigerant
circuit may have defective.

5 Check pipe <liquid> temperature with

remote controller in test run mode. If there is
extremely difference with actual pipe <liquid>
temperature, replace indoor controller board.

Turn the power off, and on again to operate
after check.

17

Error Code

Abnormal point and detection method

Cause

Countermeasure

P6

Freezing/overheating protection is work­ing

1 Freezing protection (Cooling mode)

The unit is in 6-minute resume preven­tion mode if pipe <liquid or condenser/
evaporator> temperature stays under

-15: for 3 minutes, 3 minutes after the
compressor started. Abnormal if it stays
under -15: for 3 minutes again within
16 minutes after 6-minute resume pre­vention mode.

2 Overheating protection (Heating mode)

The units is in 6 minute resume

prevention mode if pipe <condenser /
evaporator> temperature is detected as
over 70: after the compressor started.
Abnormal if the temperature of over
70: is detected again within 30 minutes
after 6 minute resume prevention mode.

P8

1 Slight temperature difference

between indoor room
temperature and pipe <liquid
or condenser / evaporator>
temperature thermistor

• Shortage of refrigerant

• Disconnected holder of pipe
<liquid or condenser /

evaporator> thermistor

• Defective refrigerant circuit

2 Converse connection of
extension pipe (on plural units

connection)
3 Converse wiring of indoor/
outdoor unit connecting wire

(on plural units connection)
4 Defective detection of indoor

room temperature and pipe

<condenser / evaporator>
temperature thermistor
5 Stop valve is not opened
completely.

(Cooling or drying mode)

1 Clogged filter (reduced airflow)
2 Short cycle of air path
3 Low-load (low temperature)

operation out of the tolerance

range

4 Defective indoor fan motor

• Fan motor is defective.

• Indoor controller board is defec­tive.

5 Defective outdoor fan control
6 Overcharge of refrigerant
7 Defective refrigerant circuit

(clogs)

(Heating mode)

1 Clogged filter (reduced airflow)
2 Short cycle of air path
3 Over-load (high temperature)

operation out of the tolerance
range

4 Defective indoor fan motor

• Fan motor is defective.

• Indoor controller board is defec­tive.

5 Defective outdoor fan control
6 Overcharge of refrigerant
7 Defective refrigerant circuit

(clogs)

8 Bypass circuit of outdoor unit

is defective.

(Cooling or drying mode)

1 Check clogs of the filter.
2 Remove shields.

4 Refer to 10-6.

5 Check outdoor fan motor.
67 Check operating condition of refrigerant

circuit.

(Heating mode)

1 Check clogs of the filter.
2 Remove shields.

4 Refer to 10-6.

5 Check outdoor fan motor.
6~8Check operating condition of refrigerant

circuit.

Pipe temperature

<Cooling mode>
Detected as abnormal when the pipe tem­perature is not in the cooling range 3 min­utes after compressor start and 6 minutes
after the liquid or condenser/evaporator
pipe is out of cooling range.
Note 1) It takes at least 9 minutes to

detect.

Note 2) Abnormality P8 is not detected in

drying mode.
Cooling range : -3 °C ] (TH-TH1)
TH: Lower temperature between: liquid

pipe temperature (TH2) and condens­er/evaporator temperature (TH5)

TH1: Intake temperature
<Heating mode>

When 10 seconds have passed after the
compressor starts operation and the hot
adjustment mode has finished, the unit is
detected as abnormal when condenser/
evaporator pipe temperature is not in heat­ing range within 20 minutes.

Note 3) It takes at least 27 minutes to

detect abnormality.
Note 4) It excludes the period of defrosting.

(Detection restarts when defrosting

mode is over.)
Heating range : 3 °C [ (TH5-TH1)

1~4 Check pipe <liquid or condenser / evapo-

rator> temperature with room tempera­ture display on remote controller and
outdoor controller circuit board.

Pipe <liquid or condenser / evaporator>

temperature display is indicated by set­ting SW2 of outdoor controller circuit
board as follows.

23Check converse connection of extension

pipe or converse wiring of indoor/outdoor
unit connecting wire.

Conduct temperature check with outdoor
controller circuit board after connecting
‘A-Control Service Tool(PAC-SK52ST)’.

(

)

18

Error Code

Abnormal point and detection method

Cause

Countermeasure

P9

Pipe temperature thermistor /
Condenser-Evaporator (TH5)

1 The unit is in 3-minute resume protec-

tion mode if short/open of thermistor is
detected. Abnormal if the unit does not
get back to normal within 3 minutes. (The
unit returns to normal operation, if it has
been reset normally.)

2 Constantly detected during cooling,

drying, and heating operation (except

defrosting)
Short: 90: or more
Open: -40: or less

1 Defective thermistor
characteristics
2 Contact failure of connector

(CN44) on the indoor controller

board (Insert failure)
3 Breaking of wire or contact
failure of thermistor wiring
4 Temperature of thermistor is

90: or more or -40: or less

caused by defective refrigerant

circuit.
5 Defective indoor controller

board

1–3 Check resistance value of thermistor.
For characteristics, refer to (P1) above.
2 Check contact failure of connector (CN44)

on the indoor controller board.
Refer to 10-7.
Turn the power on and check restart after

inserting connector again.
4 Operate in test run mode and check pipe

<condenser / evaporator> temperature with

outdoor controller circuit board. If pipe
<condenser / evaporator> temperature is

extremely low (in cooling mode) or high (in

heating mode), refrigerant circuit may have

defect.
5 Operate in test run mode and check pipe

<condenser / evaporator> temperature with

outdoor control circuit board. If there is
extreme difference with actual pipe
<condenser / evaporator> temperature,

replace indoor controller board.
There is no abnormality if none of above

comes within the unit.
Turn the power off and on again to operate.

E0

or

E4

Remote controller transmission
error(E0)/signal receiving error(E4)

1 Abnormal if main or sub remote con-

troller cannot receive any transmission
normally from indoor unit of refrigerant

address “0” for 3 minutes.
(Error code : E0)
2 Abnormal if sub remote controller could

not receive any signal for 2 minutes.

(Error code: E0)
1 Abnormal if indoor controller board can

not receive any data normally from

remote controller board or from other

indoor controller board for 3 minutes.

(Error code: E4)
2 Indoor controller board cannot receive

any signal from remote controller for 2

minutes. (Error code: E4)

1 Check disconnection or looseness of indoor

unit or transmission wire of remote controller.
2 Set one of the remote controllers “main”
if there is no problem with the action above.
3 Check wiring of remote controller.

• Total wiring length: max. 500m
(Do not use cable x 3 or more.)

• The number of connecting indoor units:
max. 16 units

• The number of connecting remote control­ler: max. 2 units

When it is not the above-mentioned problem of

1~3
4 Diagnose remote controllers.

a) When “RC OK” is displayed,

Remote controllers have no problem.
Turn the power off, and on again to check.
If abnormality generates again, replace
indoor controller board.

b) When “RC NG” is displayed,

Replace remote controller.

c)When “RC E3” or “ERC 00-66” is dis-

played, noise may be causing abnormality.

* If the unit is not normal after replacing

indoor controller board in group control,
indoor controller board of address “0” may
be abnormal.

E3

or

E5

Remote controller transmission
error(E3)/signal receiving error(E5)

1 Abnormal if remote controller could not

find blank of transmission path for 6 sec­onds and could not transmit.

(Error code: E3)
2 Remote controller receives transmitted

data at the same time and compares the
received and transmitted data. Abnormal
if these data are judged to be different
30 continuous times. (Error code: E3)

1 Abnormal if indoor controller board could

not find blank of transmission path.

(Error code: E5)
2 Indoor controller board receives trans-

mitted data at the same time and com­pares the received and transmitted data.
Abnormal if these data are judged to
be different 30 continuous times. (Error
code: E5)

1 Set a remote controller to main, and the

other to sub.

2 Remote controller is connected with only one

indoor unit.

3 The address changes to a separate setting.
4~6 Diagnose remote controller.

a) When “RC OK” is displayed, remote con-

trollers have no problem.
Turn the power off,and on again to check.
When becoming abnormal again, replace

indoor controller board.
b)When “RC NG” is displayed, replace

remote controller.
c)When “RC E3” or “ERC 00-66” is dis-

played, noise may be causing abnormal-

ity.

1 Contact failure at transmission

wire of remote controller

2 All remote controllers are set

as “sub” remote controller.
In this case, E0 is displayed
on remote controller, and E4
is displayed at LED (LED1,
LED2) on the outdoor controller
circuit board.

3 Miswiring of remote controller
4 Defective transmitting receiving

circuit of remote controller

5 Defective transmitting receiving

circuit of indoor controller board
of refrigerant addresses “0”.

6 Noise has entered into the

transmission wire of remote
controller.

1 2 remote controllers are set as

“main.”
(In case of 2 remote con­ trollers)
2 Remote controller is connected

with 2 indoor units or more.
3 Repetition of refrigerant

address
4 Defective transmitting receiving

circuit of remote controller
5 Defective transmitting receiving

circuit of indoor controller board
6 Noise has entered into trans-

mission wire of remote control-

ler.

In case of checking pipe temperature
with outdoor controller circuit board,
be sure to connect A-control service
tool (PAC-SK52ST).

(

)

19

E6

E7

Error Code

Abnornal point and detection method

Cause

Countermeasure

Fb

E1

or

E2

PA

Forced compressor stop
(due to water leakage abnormality)

1 When the intake temperature subtracted
with liquid pipe temperature is less than

-10:, drain sensor is detected whether
it is soaked in the water or not at the interval
of 90 seconds. (Drain pump will start operating

when the drain sensor is detected to be
soaked in the water.)
2 The unit has a water leakage abnormality

when the following conditions, a and b, are

satisfied while the above-mentioned detection
is performed.
a) The drain sensor is detected to be
soaked in the water 10 times in a row.
b) The intake temperature subtracted with

liquid pipe temperature is detected to be
less than -10: for a total of 30 minutes.
(When the drain sensor is detected to

be NOT soaked in the water, the detection
record of a and b will be cleared.)
3 The drain sensor detection is performed
in operations other than cooling. (When
the unit stops operating, during heating
or fan operation, when the unit stops
because of some abnormality)
*Once the water leakage abnormality is
detected, abnormality state will not be
released until the main power is reset.

1 Drain pump trouble
2 Drain defective

· Drain pump clogging

· Drain pipe clogging
3 Open circuit of drain sensor

side heater
4 Contact failure of drain sensor

connector
5 Dew condensation on drain

sensor

· Drain water descends along
lead wire.

· Drain water waving due to filter
clogging.

6 Extension piping connection
difference at twin, triple,
quadruple system.

7 Mis-wiring of indoor/ outdoor
connecting at twin, triple,
quadruple system.

8 Room temperature thermistor /
liquid pipe temperature thermis­ tor detection is defective.

1 Check the drain pump.
2 Please confirm whether water can be

drained.

3 Confirm the resistance of the drain sensor.

4 Check the connector contact failure.

5 Check the drain sensor leadwire mounted.

Check the filter clogging

6 Check the piping connection.

7 Check the indoor/ outdoor connecting wires.

8 Check the room temperature display of

remote controller.
Check the indoor liquid pipe temperature
display of outdoor controller board.

1 Contact failure, short circuit or,

miswiring (converse wiring) of
indoor/outdoor unit connecting
wire

2 Defective transmitting receiving

circuit of indoor controller board

3 Defective transmitting receiving

circuit of indoor controller board

4 Noise has entered into indoor/

outdoor unit connecting wire.

* Check LED display on the outdoor control

circuit board. (Connect A-control service

tool, PAC-SK52ST.)
Refer to outdoor unit service manual.
1 Check disconnection or looseness of indoor/

outdoor unit connecting wire of indoor unit or

outdoor unit.
Check all the units in case of twin triple
indoor unit system.
2-4 Turn the power off, and on again to check.

If abnormality generates again, replace

indoor controller board or outdoor
controller circuit board.
* Other indoor controller board may have
defect in case of twin triple indoor unit
system.

Indoor/outdoor unit communication
error (Transmitting error)

Abnormal if “1” receiving is detected 30
times continuously though indoor controller
board has transmitted “0”.

1 Defective transmitting receiving

circuit of indoor controller board

2 Noise has entered into power

supply.

3 Noise has entered into outdoor

control wire.

1-3 Turn the power off, and on again to check.

If abnormality generates again, replace

indoor controller board.

Indoor/outdoor unit communication
error (Signal receiving error)

1 Abnormal if indoor controller board
cannot receive any signal normally for 6

minutes after turning the power on.
2 Abnormal if indoor controller board
cannot receive any signal normally for 3

minutes.
3 Consider the unit abnormal under the fol-

lowing condition: When 2 or more indoor

units are connected to an
outdoor unit, indoor controller board
cannot receive a signal for 3 minutes

from outdoor controller circuit board, a

signal which allows outdoor controller

circuit board to transmit signals.

Indoor controller board

Abnormal if data cannot be read normally
from the nonvolatile memory of the indoor
controller board.

1 Defective indoor controller

board

1 Replace indoor controller board.

Remote controller control board

1 Abnormal if data cannot be read nor-

mally from the nonvolatile memory of the

remote controller control board.

(Error code: E1)
2 Abnormal if the clock function of remote

controller cannot be operated normally.

(Error code: E2)

1 Defective remote controller 1 Replace remote controller.

20

(For the separate indoor/outdoor unit power sup-

ply system)

1 Power supply of 220~240V AC is not supplied to

indoor unit.

2 The connectors of the optional replacement kit are

not used.

3 Defective indoor controller board.

4 Defective indoor power board.

10-3. TROUBLESHOOTING BY INFERIOR PHENOMENA

Note: Refer to the manual of outdoor unit for the detail of remote
controller.

Phenomena

Cause

Countermeasure
(1)LED2 on indoor controller board
is off.

• When LED1 on indoor controller board is also off.
1 Power supply of rated voltage is not supplied to out-

door unit.

2 Defective outdoor controller circuit board.

3 Power supply of 220~240V is not supplied to indoor

unit.

4 Defective indoor power board.

5 Defective indoor controller board.

1 Check the voltage of outdoor power

supply terminal block (L, N) or (L3, N).

• When AC 220~240V is not detected.
Check the power wiring to outdoor unit
and the breaker.

• When AC 220~240V is detected.

—Check 2 (below).
2 Check the voltage between outdoor
terminal block S1 and S2.

• When AC 220~240V is not detected.

Check the fuse on outdoor controller cir-

cuit board.

Check the wiring connection.

• When AC 220~240V is detected.

—Check 3 (below).
3 Check the voltage between indoor terminal

block S1 and S2.

• When AC 220~240V is not detected.
Check indoor/outdoor unit connecting
wire for mis-wiring.

• When AC 220~240V is detected.

—Check 4 (below).

4 Check voltage output from CN2S on indoor

power board (DC13.1V). Refer to 10-6-1.

• When no voltage is output.
Check the wiring connection.

• When output voltage is between DC12.5V

and DC13.7V.

—Check 5 (below).

5 Check the wiring connection between indoor

controller board and indoor power board.
Check the fuse on indoor controller board.
If no problems are found, indoor controller
board is defective.

• When LED1 on indoor controller board is lit.
1 Mis-setting of refrigerant address for outdoor unit
(There is no unit corresponding to refrigerant
address “0”.)

1 Reconfirm the setting of refrigerant address

for outdoor unit
Set the refrigerant address to “0”.
(For grouping control system under

which 2 or more outdoor units are
connected, set one of the units to “0”.)
Set refrigerant address using SW1 (3-6)
on outdoor controller circuit board.

1 Check the voltage of indoor power supply

terminal block (L,N).

• When AC220~240V is not detected.
Check the power supply wiring.

• When AC220~240V is detected.

-Check 2 (below).

2 Check that there is no problem in the meth-

od of connecting the connectors.

• When there are problems in the method
of connecting the connectors.

Connect the connector correctly referring

to installation manual of an optional kit.

• When there is no problem in the method
of connecting the connectors.

-Check 3 (below).

3 Check voltage output from CNDK on indoor

controller board.

• When AC220~240V is not detected.

Check the fuse on indoor controller board.
Check the wiring connection between

indoor power supply terminal block and
CND on indoor controller board.

• When AC220~240V is detected.

-Check 4 (below).

4 Check voltage output from CN2S on indoor

power board.

• When no voltage output.

Check the wiring connection between
CNDK on indoor controller board and
CNSK on indoor power board.
If no problem are found,indoor power

board is defective.

• When DC12.5~13.7V is detected.

Check the wiring connection between

CN2S on indoor power board and

CN2D on indoor power board.
If no problem are found,indoor controller

board is defective.

21

10-4.

WHEN WIRED REMOTE CONTROLLER OR INDOOR UNIT MICRO COMPUTER TROUBLES

1. If there is not any other wrong when trouble occurs, emergency operation starts as the indoor controller board switch (SWE)
is set to ON.

During the emergency operation the indoor unit is as follows;

Indoor fan high speed operation

2. When emergency operating for COOL or HEAT, setting of the switch (SWE) on the indoor controller board and outdoor unit
emergency operation are necessary.

3. Check items and notices as the emergency operation

(1) Emergency operation cannot be used as follows;

• When the outdoor unit is something wrong.

• When the indoor fan is something wrong.

• When drain over flow protected operation is detected during self-diagnosis. (Error code : P5)

(2) Emergency operation will be serial operation by the power supply ON/OFF.

ON/OFF or temperature, etc. adjustment is not operated by the remote controller.

(3) Do not operate for a long time as cold air is blown when the outdoor unit starts defrosting operation during heat emer-

gency operation.
(4) Cool emergency operation must be within 10 hours. Other wire, heat exchanger of indoor unit may get frosted.
(5) After completing the emergency operation, return the switch setting, etc. in former state.
(6) Since vane does not work at emergency operation, position the vane slowly by hand.

Note: Refer to the manual of outdoor unit for the detail of remote
controller.

(3)Upward/downward vane
performance failure

1 The vane is not downward during defrosting and heat

preparation and when the thermostat is OFF in HEAT
mode. (Working of COOL protection function)

2 Vane motor does not rotate.

• Defective vane motor

• Breaking of wire or connection failure of connector

• Up/down vane setting is “No vanes”.

3 Upward/downward vane does not work.

• The vane is set to fixed position.

1 Normal operation (The vane is set to

horizontal regardless of remote control.)

2 Check 2 (left).

• Check the vane motor. (Refer to “How
to check the parts”.)

• Check for breaking of wire or connec­tion failure of connector.

• Check “Up/down vane setting”. (Unit
function selection by remote controller).

3 Normal operation (Each connector on

vane motor side is disconnected.)

Phenomena

Cause

Countermeasure

(2)LED2 on indoor controller board
is blinking.

• When LED1 on indoor controller board is also blinking.
Connection failure of indoor/outdoor unit connecting
wire

• When LED1 is lit.
1 Mis-wiring of remote controller wires

Under twin triple indoor unit system, 2 or more indoor

units are wired together.

2 Refrigerant address for outdoor unit is wrong or not

set.
Under grouping control system, there are some units
whose refrigerant address is 0.

3 Short-cut of remote controller wires
4 Defective remote controller

Check indoor/outdoor unit connecting wire
for connection failure.

1 Check the connection of remote con­ troller wires in case of twin triple indoor

unit system. When 2 or more indoor units
are wired in one refrigerant system,
connect remote controller wires to one of

those units.

2 Check the setting of refrigerant address

in case of grouping control system.
If there are some units whose refrigerant
addresses are 0 in one group, set one of
the units to 0 using SW1 (3-6) on outdoor
controller circuit board.
34 Remove remote controller wires and
check LED2 on indoor controller board.

• When LED2 is blinking, check the short­cut of remote controller wires.

• When LED2 is lit, connect remote

controller wires again and:
if LED2 is blinking, remote controller
is defective; if LED2 is lit, connection
failure of remote controller terminal
block etc. has returned to normal.

(4)Receiver for wireless remote
controller

1 Weak batteries of wireless remote controller.
2 Contact failure of connector (CNB) on wireless

remote controller board.

(Insert failure)
3 Contact failure of connector (CN90) on indoor con-

troller board.(Insert failure)

4 Contact failure of connector between wireless remote

controller board and indoor controller board.

1 Replace batteries of wireless remote con-

troller.

2~4
Check contact failure of each connector.
If no problems are found of connector,

replace indoor controller board.

When the same trouble occurs even if

indoor controller board is replaced,

replace wireless remote controller

board.

22

10-5. HOW TO CHECK THE PARTS

PCA-RP71HA PCA-RP71HA#1
PCA-RP125HA PCA-RP125HA#1

Measure the resistance between the terminals with a tester.
(Winding temperature 20)

Fan motor

(MF)

Open or short

Abnormal

White

Orange

Yellow

Blue

Black

Red

Relay
connector

Protector

Protector

OPEN : 135±5
CLOSE : 95±15

White–Black

Black–Blue

Blue–Yellow

Yellow–Red

Connector

PCA-RP71

140.5

15.4

28.5

80.4

PCA-RP125

75.6

36.7

23.6

47.8

Normal

Parts name Check points

Disconnect the connector then measure the resistance with a tester.
(At the ambient temperature 10~30)

(Refer to <Thermistor Characteristic graph> for a detail.)

Room temperature
thermistor (TH1)

Pipe temperature
thermistor (TH2)

Condenser/Evaporator
temperature thermistor
(TH5)

Normal

4.3k~9.6k

Abnormal

Open or short

0

10

20

30

40

50

-20-100 1020304050

< Thermistor for lower temperature >

Temperature ()

Resistance (K)

<Thermistor Characteristic graph>

Room temperature thermistor(TH1)
Pipe temperature thermistor(TH2)
Condenser/evaporator temperature
thermistor(TH5)

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

Thermistor for
lower temperature

1

273+t

1

273

23

10-6. TEST POINT DIAGRAM

10-6-1. Power board
PCA-RP71HA PCA-RP71HA#1
PCA-RP125HA PCA-RP125HA#1

CNSK
Connect to the indoor controller board
(CNDK)
Between 1 to 3 220-240V AC

CN2S
Connect to the indoor controller board (CN2D)
Between 1 to 3 12.6-13.7V DC (Pin1 (+))

24

–

10-6-2. Indoor controller board

PCA-RP71HA PCA-RP71HA#1
PCA-RP125HA PCA-RP125HA#1

FAN
Fan motor output

CNP
Drain-pump output
(DP)
(220~240V AC)

CNC
Dew prevention
heater (H2)
(220~240V AC)

CNDK
Connect to the indoor
power board (CNSK)
(220~240V AC)

FUSE
(6.3A 250V)

CND
Power
supply input
(220~240V AC)

SWE
Emergency operation

SW2
Capacity setting

SW1
Model setting

CN2L
Connector
(LOSSNAY)

CN51
Centrally control

CN6V
Vane motor output
(MV)

CN90
Connect to the wire­less remote controller
board (CNB)

CN31
Drain sensor (DS)

CN29
Condenser/evaporator
temperature thermistor
(TH5)

CN21
Pipe temperature
thermistor/Liquid
(TH2)

CN20
Room temperature
thermistor (TH1)

CN22
Remote controller
connecting wire
(10.4~14.6V DC)

LED3
Transmission
(Indoor/outdoor)

LED2
Power supply
(R.B)

LED1
Power supply
(I.B)

CN2D
Connector to the indoor
power board (CN2S)
(12.5~13.7V DC)

CN3C
Transmission
(Indoor/outdoor)
(0~24V DC)

}

}

+

+

–

CN41
Connector
(HA terminal-A)

25

SW1

Setting by the dip switch and jumper wire

Functions

Jumper wire

Model
settings

Capacity
settings

Pair number
setting with
wireless
remote
controller

For service board

Remarks

SW2

J41
J42

Unit type
setting

JP1

Indoor
controller
board type
setting

JP3

0
1
2

3 ~ 9

Wireless remote
controller setting

Control PCB setting

J41 J42

<Initial setting>
Wireless remote controller: 0
Control PCB: (for both J41 and J42)
Four pair number settings are supported.
The pair number settings of the wireless remote
controller and indoor control PCB (J41/J42) are
given in the table on the left.
(' ' in the table indicates the jumper line is disco­nnected.)

There is no jumper (JP1) because these models
have the cond./eva. temperature thermistor (TH5).

(Marks in the table below) Jumper wire ( : Short : Open)

Without TH5

With TH5

Model

JP1

For product

Service parts

Indoor controller board type

JP3

12345

ON

OFF

Service board

MODELS

PCA-RP71HA

1 2 3 4 5

ON
OFF

PCA-RP125HA

1 2 3 4 5

ON
OFF

10-7. FUNCTIONS OF DIP SWITCH AND JUMPER WIRE

Each function is controlled by the dip switch and the jumper wire on control p.c. board.
SW1 and SW2 are equipped only for service parts.
Model setting and capacity setting are memorized in the nonvolatile memory of the control p.c. board of
the unit.

26

SPECIAL FUNCTION

11

Note:

· When the uint is restarted to operate after turning off the power or OFF operation, the unit which was operating will start
operation.

· To operate the main unit, refer to the 11-1-2. and set the requet code No. which is not the same as the current one, and set
again the former request code No.

(2) 2nd stage cut-in function
Outline of functions

· Number of operating units is determined according to the room temperature and set point.

· When room temperature becomes higher than set point, standby unit starts.(2 units operation)

· When room temperature falls below set point -4:, standby unit stops.(1 unit operation)

System constraint

· This function is available only in rota­tion operation and back-up function in
cooling mode.

[2nd stage cut-in function]··· Request code number "322~324"

Start operation Sub unit start operation

Room temp. Set point

Sub unit stop

Run

Stop StopRun

Main

unit

IC-1

Sub

unit

IC-2

Room temp. < Set point -4

11-1. ROTATION FUNCTION(AND BACK-UP FUNCTION, 2ND STAGE CUT-IN FUNCTION)

For PCA-RP71/125HA#1
11-1-1. Operation
(1) Rotation function (and Back-up function)

• Outline of functions

· Main and sub unit operate alternately according to the interval of rotation setting.
w Main and sub unit should be set by refrigerant address.(Outdoor Dip switch setting)
Refrigerant address"00" Main unit
Refrigerant address"01" Sub unit

· When error occurrs to one unit, another unit will start operation.(Back-up function)

• System constraint

· This function is available only by the grouping control system(INDOOR UNIT : OUTDOOR UNIT=1:1) of 2 refrigerant

groups.(Refer to Fig. 1)

· Main indoor unit should be connected for wired remote controller and the transmission line(TB5) for main and sub unit

should also be connected. (Refer to Fig. 1)

(This function cannot be set by wireless remote controller.)

· Set refrigerant address of each unit.(Dip switch on the outdoor unit···Refrigerant address 00/01)

Operation pattern

OC-1

OC-2

IC-1

IC-2

3(2)

3(2)

2

RC

2

Main
unit

Sub
unit

Refrigerant address
"01"

Refrigerant address
"00"

Fig. 1

[Back-up function only]··· Request code number "312"



[Rotation function] & [Back-up function]··· Request code number "313~318"

(Ex:When the request code number is "313", each unit operates alternately in daily cycle.)

Error occurs on main unit.

Start operation

Run

Abnormal condition

Stop

Run

Main

unit

IC-1

Sub

unit

IC-2

Error occurs on main unit.

Start operation

1~28 days 1~28 days

Run

Abnormal condition

Stop

Stop

Run

Run

Stop Run

Main

unit

IC-1

Sub

unit

IC-2

Main Sub

Main Sub Sub Main Main Sub

OC : Outdoor unit
IC : Indoor unit
RC : Wired remote controller

2727

11-1-2. How to set rotation function(Back-up function, 2nd stage cut-in function)

You can set these functions by wired remote controller.(Maintenance monitor)

Both main and sub unit should be set in same setting.
Every time replacing indoor controller board for servicing, the function should be set again.

NOTICE

Setting No.

(Request code)

Setting contents

Initial

setting

No.1
(310)

Monitoring the request code of current setting.

No.2
(311)

Rotation and Back-up OFF (Normal group control operation)

No.3
(312)

Back-up function only

No.4
(313)

Rotation ON (Alternating interval = 1day) and back up function

No.5
(314)

Rotation ON (Alternating interval = 3day) and back up function

No.6
(315)

Rotation ON (Alternating interval = 5day) and back up function

No.7
(316)

Rotation ON (Alternating interval = 7day) and back up function

No.8
(317)

Rotation ON (Alternating interval = 14day) and back up function

No.9
(318)

Rotation ON (Alternating interval = 28day) and back up function

Setting No.

(Request code)

Setting contents

Initial

setting

No.1
(320)

Monitoring the request code of current setting.

No.2
(321)

Cut-in function OFF

No.3
(322)

Cut-in Function ON(Set point = Set temp.+ 4°C(7.2°F))

No.4
(323)

Cut-in Function ON(Set point = Set temp.+ 6°C(10.8°F))

No.5
(324)

Cut-in Function ON(Set point = Set temp.+ 8°C(14.4°F))

(1) Request Code List
Rotation setting

2

nd stage cut-in setting

28

(2) Setting method of each function by wired remote controller

B: Refrigerant address
C: Data display area
D: Request code display area

TEST

CHECK

FILTER

  

FILTER

ON/OFF

1. Stop operation().

2. Press the button () for 3 seconds so that [Maintenance mode] appears on the screen ().
After a while, [00] appears in the refrigerant address number display area.(at  )

3. Press the button () for 3 seconds to switch to [Maintenance monitor].
Note) It is not possible to switch to [Maintenance monitor] during data request in maintenance mode

(i.e., while “----” is blinking) since no buttons are operative.

[----] appears on the screen () when [Maintenance monitor] is activated.
(The display () now allows you to set a request code No.)

4. Press the [TEMP ( and )] buttons () to select the desired refrigerant address.

5. Press the [CLOCK ( and )] buttons () to set the desired request code No.(“311~318”, “321~324”)

6. Press the button () to perform function setting.

If above setting operations are done correctly, "Request code number will appear in data display area.()
[Example: When the "311" of "Request code number" is set, [311] appears on the screen.()]

[Refererence]
You can check current "request code number" setting by setting the "request code number"(“310” or “320”) and
pressing the button.()
[Example: When the current setting is "Setting No.2(Request code 311)", [311] appears on the screen.()]

7. To return to normal mode, press the button ().

[ScreenB]





















2929

PCA-RP71HA PCA-RP125HA
PCA-RP71HA#1 PCA-RP125HA#1

12

DISASSEMBLY PROCEDURE

1. Removing the oil filter

(1) Slide the oil filter towards you to remove. (See figure 1.)

OPERATING PROCEDURE PHOTOS&ILLUSTRATIONS

Figure 1

Photo 1

Slide

2. Removing the terminal block box cover

(1) Remove the oil filter. (See figure 1.)
(2) Remove a screw for terminal block box cover, and remove

the terminal block box cover. (See photo 1.)

Terminal
block box
cover

Terminal
block box

Screw

Clamp for
wiring

3. Removing the control box

(1) Remove the oil filter. (See figure 1.)
(2) Loosen the screw for control box cover to remove the

control box cover. (See photo 2.)
(3) Remove the lead wire from the 2 clips.
(4) Remove the 2 white cord heater relay connectors (1P o 2)

and 2 fan motor relay connectors (6P o 2) in the control

box.
(5) Remove the 2 screws for control box to slide the control

box downward.
Electrical parts in the control box

• Fan motor capacitor

• Indoor controller board

• Power board

Photo 2

Photo 3

Screws for
control box

Screw for
control box
cover

Clip for
lead wire

Cord heater
relay
connectors

Power board

Fan motor
capacitor

Fan motor
relay connectors

Room
temperature
thermistor
connector
(CN20)

Pipe
temperature
thermistor
connector
(CN21)

Indoor
controller
board

Oil filter

Filter rail Fan guard

OPERATING PROCEDURE PHOTOS&ILLUSTRATIONS

4. Removing the fan motor

(1) Remove the oil filter. (See figure 1.)
(2) Remove the control box cover. (See photo 2.)
(3) Remove the room temperature thermistor connector (CN20)

on the indoor controller board. (See photo 3.)
(4) Remove a filter rail that is the nearest to the control box.
(See photo 4.)
(5) Remove the fan guard. (See photo 5.)
(6) Remove the room temperature thermistor together with the

holder at the right side of the casing.

5. Removing the fan motor and the sirocco fan

(1) Remove the oil filter. (See figure 1.)
(2) Remove the control box cover.

(See photo 2.)

(3) Remove the fan motor relay connectors (6P) in the control

box. (See photo 3.)

(4) Remove the 3 filter rails.

(See photo 1, 4.)

(5) Remove the fan guard.

(See photo 5.)

(6) Remove the lower casing.

(See photo 6.)

(7) Remove the green earth wire from the motor support.

(See photo 7.)

(8) Remove the 2 screws (M5 × 12) for motor support, and

remove the left and right motor supports.

(9) Remove the fan motor together with the sirocco fan.

(10) Remove the 2 set screws (M6) to separate the fan motor

from the sirocco fan.

Photo 4

Photo 6

Fan guard

Screws for Fan guard

Room
temperature
thermistor

Screws for Fan guard

Control box
cover

Screws for casing

Screws for
motor support

Motor
support

Fan motor

casing

Set screws

Screws for casing

casing

Sirocco fan

Sirocco fan

Photo 7

Earth wire

Screws for
filter reil

Filter reil

Room
temperature
thermistor

Photo 5

Control box
cover

30

OPERATING PROCEDURE PHOTOS

6. Removing the pipe temperature thermistor

(1) Remove the oil filter. (See figure 1.)
(2) Remove the fan guard.

(See photo 1.)
(3) Remove the terminal block box cover.
(4) Remove the white relay connector (2P) in the terminal

block box. (See photo 8.)
(5) Remove the service panel. (See photo 9.)
(6) Remove the pipe temperature thermistor from the holder.

(See photo 10.)

8. Removing the drain pan

(1) Remove the oil filter. (See Figure 1)
(2) Remove the 3 filter rails. (See photo 1, 4.)
(3) Remove the under panel. (See photo 11.)
(4) Pull the blue lead wire for cord heater towards you to

slack off. (See photo 12.)
(5) Remove the 3 screws at the center of the drain pan, and

remove the drain pan.
(Note) Remove the drain pan carefully since the drain could

remain in it.

7. Removing the under panel

(1) Remove the oil filter. (See figure 1.)
(2) Remove the 3 filter rails. (See photo 1, 4.)
(3) Remove the 12 screws (left: 1, right: 1, Bottom: 10) for

under panel, and remove the under panel.
(See photo 11.)

Photo 8

Photo 9

Photo 11

Photo 12

Caution for installation

When installing the pipe temperature
thermistor, slack off its lead wire as
shown in the photo. Otherwise, water
trickled down the lead wire may splash
on the connector and this could cause a
short circuit of the connector.

Photo 10

Terminal block box

Relay connector

Screw for
service panel

Service panel

Inspection port

Pipe temperature
thermistor

Slack off

Screws for
drain pan

Lead wire for
cord heater

Drain pan

Screws for under panel (Bottom:10)

Screw for

under panel

(left:1)

Screw for under panel
(right:1)

Under panel

31

32

OPERATING PROCEDURE PHOTOS

9. Removing the guide vane

(1) Remove the oil filter. (See figure 1.)
(2) Remove the 3 filter rails. (See photo 1, 4.)
(3) Remove the under panel. (See photo 11.)
(4) Remove the drain pan. (See photo 12.)
(5) Remove the 3 screws (4 × 10) for guide vane, and

remove the guide vane. (See photo 13.)

10. Removing the vane

(1) Slide the vane to the center of the unit, and pull it towards

you to remove. (See photo 14.)

11. Removing the heat exchanger

(1) Remove the oil filter. (See figure 1.)
(2) Remove the 3 filter rails. (See photo 1, 4.)
(3) Remove the under panel. (See photo 11.)
(4) Remove the drain pan. (See photo 12.)
(5) Remove the 2 screws (4 × 10) for pipe cover, and remove

the pipe cover. (See photo 15.)

(6) Remove the 3 screws (4 × 10, left: 2, right: 1) for heat

exchanger. (See photo 15, 16.)

(7) Remove the 2 screws (4 × 10) for heat exchanger at the

top of the unit, and remove the heat exchanger.

(See photo 17.)

Photo 13

Photo 14

Photo 15

Caution for installation

When installing the vane, check that its
projection is on the left-rear side.

Guide vane

Screws for guide vaneDrain pan

Vane

Slide

Slide

Screw for
pipe cover

pipe cover

Heat exchanger

Screw for
Heat exchanger
(right)

Screws for
Heat exchanger
(left)

Heat exchanger

Photo 16Photo 17

Screws for
Heat exchanger
(top)

Heat exchanger

Projection

33

13

PARTS LIST (non-RoHS compliant)

No.

Parts No. Parts Name

Specifications

PCA-RP

71HA

Wiring

Diagram

Symbol

Recom­mended

Q'ty

Q'ty / set

Remarks

(Drawing No.)

125HA

1
2

3

4

5

7
8
9

10

11

12

13

14
15
16
17
18
19

LEG-L
SIDE PLATE-L
REAR PANEL
REAR PANEL
UNDER PANEL
UNDER PANEL
FILTER RAIL
OIL FILTER
DRAIN HOSE SUPPORT
SIDE COVER
LEG-R
SERVICE PANEL
SIDE PLATE-R
FRONT PANEL
FRONT PANEL
VANE ASSY
VANE ASSY
GUIDE VANE ASSY-6L
GUIDE VANE ASSY-6C
GUIDE VANE ASSY-6R
VANE HOLDER
VANE SUPPORT
FRONT SUPPORT

R01 13N 809
R01 13N 662
T7W E02 676
T7W E03 676
R01 12N 669
R01 13N 669
R01 13N 503
R01 E05 500

—
R01 13N 667
R01 13N 808
R01 13N 668
R01 13N 661
T7W E02 651
T7W E03 651
R01 12N 002
R01 13N 002
R01 13N 086
R01 13N 087
R01 13N 085
R01 13N 533

—

—

2
1
1

1

2
3
1
1
2
1
1
1

2

1

1
1
1
1

2
1

1

1
3
4
1
1
2
1
1

1

3
1
1
1
2
2
2

(BG00K145G02)

(BG00K146G02)
(BG00T773G01)

6

STRUCTURAL PART
PCA-RP71HA
PCA-RP125HA

1
2

3

4
5

6

7

8

9

10

11

13

12

16

15

14

17

18

19

34

No.

Parts No. Parts Name

Specifications

PCA-RP

71HA

Wiring

Diagram

Symbol

Recom-

mended

Q'ty

Q'ty / set

Remarks

(Drawing No.)

125HA

TH1

TH2
TH5

MF1
MF1,2

PA6V40-CB
PA4V80-CA

1

2

3

4
5

6

7

8

9

10

11
12
13

14

15
16

17

18
19
20
21
22
23

T. CASING ASSY
T. CASING ASSY
SIROCO FAN
SIROCO FAN
UNDER CASING-L
UNDER CASING-L
FAN GUARD-S
ROOM TEMPERATUR TERMISTOR
FAN GUARD-L
FAN GUARD-L
UNDER CASING-R
UNDER CASING-R
FAN GUARD-S
DRAINPAN ASSY
DRAINPAN ASSY
FAN PLATE
FAN PLATE
PIPE SUPPORT
PIPE TEMPERATURE TERMISTOR
CONDENSER / EVAPORATOR TEMPERATURE TERMISTOR
HEAT EXCHANGER
HEAT EXCHANGER
FAN PLATE SUPPORT-R
FAN PLATE SUPPORT-C
FAN MOTOR
FAN MOTOR
MOTOR LEG
PIECE FOR MOTOR
FAN PLATE SUPPORT-L
PIPE COVER
DRAIN HOSE COVER
RUBBER MOUNT

(BG00N756G15)
(BG00N756G14)
(BG02T500H04)

(BG00N893G15)
(BG00N893G14)

(BG00N893G13)

R01 12N 110
R01 13N 110
R01 12N 114
R01 13N 114
T7W E02 111
T7W E03 111
T7W E12 675
R01 E51 202
T7W E14 675
T7W E13 675
T7W E00 111
T7W E01 111
T7W E11 675
R01 12N 529
R01 13N 529

—
—

—
R01 13N 202
R01 E63 202
R01 H04 480
T7W K07 480

—

—
T7W E20 762
T7W E21 762
R01 45K 130
R01 83E 126

—
R01 13N 521
R01 13N 072
R01 811 105

2

2

1

1
1
1

1

1
1

1

1
1
1
1

1
1
1

1
1
1
1
1
2

4

4

2
2
1

2

2
2

1

2
1
1
1

1
1
1

2
2
2
1
1
1
4

Part numbers that are circled are not shown in the figure.

1
2
3

4

9

5
6

8

10

11

13

14

12

16

18,19 17

FAN PARTS
PCA-RP71HA
PCA-RP125HA

7

20 15

4

6

8

35

TO REMOTE
CONTROLLER

TO OUTDOOR
UNIT

21

S3S2S1

ELECTRICAL PARTS
PCA-RP71HA
PCA-RP125HA

1

ON/OFF

TEMP.

No.

Parts No. Parts Name Specifications

PCA-RP

71HA

Wiring

Diagram

Symbol

Recom­mended

Q'ty

Q'ty / set

Remarks

(Drawing No.)

125HA

(BG02N713H05)

(BG00T759G13)

1

2

3

4

5

6

7

8

9

10

11

SUPPORT

CONTROLLER BOARD

FUSE

POWER BOARD

RUN CAPACITOR

RUN CAPACITOR

CONTROL BOX COVER

CONTROL BOX

TERMINAL BLOCK

TERMINAL BLOCK

REMOTE CONTROLLER

R01 18J 054

T7W E41 310

R01 E02 239

R01 E02 313

R01 A00 255

R01 576 255

—

—

T7W E23 716

R01 556 246

T7W E08 713

9

1

1

1

1

1

1

1

1

1

I.B

FUSE

P. B

C1

C1,C2

TB4

TB5

R.B

250V 6.3A

2.5, 440V

3, 440V

3P(S1, S2, S3)

2P(1, 2)

PAR-21MAA

9

1

1

1

2

1

1

1

1

1

2

3

4

1

6

5

9 10

11

7, 8

36

14

RoHS PARTS LIST

No.

Parts No. Parts Name

Specifications

PCA-RP

71HA

Wiring

Diagram

Symbol

Recom-

mended

Q'ty

Q'ty / set

Remarks

(Drawing No.)

125HA

7
8
9

10

14
15
16
17
18
19

LEG-L
SIDE PLATE-L
REAR PANEL
REAR PANEL
UNDER PANEL
UNDER PANEL
FILTER RAIL
OIL FILTER

DRAIN HOSE SUPPORT
SIDE COVER
LEG-R
SERVICE PANEL
SIDE PLATE-R
FRONT PANEL
FRONT PANEL
VANE ASSY
VANE ASSY
GUIDE VANE ASSY-6L
GUIDE VANE ASSY-6C
GUIDE VANE ASSY-6R
VANE HOLDER
VANE SUPPORT
FRONT SUPPORT

R01 15N 669
R01 14N 503
R01 14N 500

—
R01 14N 667
R01 14N 808
R01 14N 668
R01 14N 661
T7W 14N 651
T7W 15N 651
R01 15N 002
R01 16N 002
R01 14N 086
R01 14N 087
R01 14N 085
R01 14N 533

—

—

2
1
1

1

2
3

1
1
2
1
1
1

2

1

1
1
1
1

2
1

1

1
3
4

1
1
2
1
1

1

3
1
1
1
2
2
2

(BG00K145G02)

(BG00K146G02)
(BG00T773G02)

RoHS

G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G

1
2

3

4

5

6

13

G

R01 14N 809

R01 14N 662
T7W 14N 676
T7W 15N 676

R01 14N 669

12

11

G

R01 15N 500

OIL FILTER

71HA#1

125HA#1

2
1
1

1

2

3
1
1
2
1
1
1

2

1

1
1
1
1

2
1

1

1
3

4
1
1
2
1
1

1

3
1
1
1
2
2
2

STRUCTURAL PART
PCA-RP71/125HA
PCA-RP71/125HA#1

1
2

3
4

5

6

7

8

9

10

11

13

12

16

15

14

17

18

19

3737

Part numbers that are circled are not shown in the figure.

RoHS

No.

Parts No. Parts Name

Specifications

PCA-RP

71HA·71HA#1

Wiring

Diagram

Symbol

Recom-

mended

Q'ty

Q'ty / set

Remarks

(Drawing No.)

125HA·125HA#1

TH1

TH2
TH5

MF1
MF1,2

PA6V40-CC
PA4V80-CA

1

2

3

4
5

6

7

8

9

10

11
12
13

14

15
16

17

18
19
20

21

22

23

T. CASING ASSY
T. CASING ASSY
SIROCO FAN
SIROCO FAN
UNDER CASING-L
UNDER CASING-L
FAN GUARD-S(L)
ROOM TEMPERATUR TERMISTOR
FAN GUARD-L
FAN GUARD-L
UNDER CASING-R
UNDER CASING-R
FAN GUARD-S(R)
DRAINPAN ASSY
DRAINPAN ASSY
FAN PLATE
FAN PLATE
PIPE SUPPORT
PIPE TEMPERATURE TERMISTOR
CONDENSER / EVAPORATOR TEMPERATURE TERMISTOR
HEAT EXCHANGER
HEAT EXCHANGER
FAN PLATE SUPPORT-R
FAN PLATE SUPPORT-C
FAN MOTOR
FAN MOTOR
MOTOR LEG
PIECE FOR MOTOR
FAN PLATE SUPPORT-L
PIPE COVER
DRAIN HOSE COVER
RUBBER MOUNT

(BG00N756G17)
(BG00N756G16)
(BG02T500H04)

(BG00N893G15)
(BG00N893G14)

(BG00N893G13)

R01 14N 110
R01 15N 110
R01 14N 114
R01 15N 114
T7W 16N 111
T7W 17N 111
T7W 18N 675
R01 15N 202
T7W 15N 675
T7W 16N 675
T7W 14N 111
T7W 15N 111
T7W 17N 675
R01 15N 529
R01 16N 529

—
—

—
R01 16N 202
R01 17N 202
R01 J68 480
T7W H55 480

—

—
T7W 14N 762
T7W 15N 762
R01 14N 130
R01 14N 126

—
R01 14N 521
R01 14N 072
R01 14N 105

2

2

1

1
1
1

1

1
1

1

1
1
1
1

1
1
1

1
1
1
1
1
2

4

4

2
2
1

2

2
2

1

2
1
1
1

1
1
1

2
2
2
1
1
1
4

G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G
G

1
2
3

4

9

5
6

8

10

11

13

14

12

16

18,19 17

FAN PARTS
PCA-RP71/125HA
PCA-RP71/125HA#1

7

20 15

4

6

8

38

TO REMOTE
CONTROLLER

TO OUTDOOR
UNIT

21

S3S2S1

ELECTRICAL PARTS
PCA-RP71/125HA
PCA-RP71/125HA#1

1

ON/OFF

TEMP.

No.

Parts No. Parts Name

Specifications

PCA-RP

71HA

Wiring

Diagram

Symbol

Recom-

mended

Q'ty

Q'ty / set

Remarks

(Drawing No.)

125HA

(BG02N713H07)

(BG00T759G16)

1

3

4

5

6

7

8

9

10

11

SUPPORT

CONTROLLER BOARD

FUSE

POWER BOARD

RUN CAPACITOR

RUN CAPACITOR

CONTROL BOX COVER

CONTROL BOX

TERMINAL BLOCK

TERMINAL BLOCK

REMOTE CONTROLLER

R01 20J 054

T7W E51 310

R01 E06 239

R01 E38 313

R01 14N 255

R01 E12 255

—

—

R01 E20 246

R01 E21 246

T7W E11 713

9

1

1

1

1

1

1

1

1

1

I.B

FUSE

P. B

C1

C1,C2

TB4

TB5

R.B

250V 6.3A

2.5, 440V

3, 440V

3P(S1, S2, S3)

2P(1, 2)

PAR-21MAA

9

1

1

1

2

1

1

1

1

1

G

G

G

G

G

G

G

G

G

G

G

125HA#1

1

1

2

1

1

1

1

71HA#1

1

1

1

1

1

1

1

2

T7W E74 310

1

1

G

CONTROLLER BOARD

9

1

I.B

1

RoHS

9

2

3

4

1

6

5

9 10

11

7, 8

39

HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN

CCopyright 2005 MITSUBISHI ELECTRIC ENGINEERING CO., LTD.
Distributed in May 2008 No.OC329 REVISED EDITION-B PDF 7
Distributed in Jul. 2006 No.OC329 REVISED EDITION-A PDF 8
Distributed in Jun. 2005 No.OC329 PDF 9
Made in Japan.

New publication, effective May 2008.
Specifications subject to change without notice.

TM