Mitsubishi Electric PSA-RP71GA, PSA-RP140GA, PSA-RP125GA, PSH-P71GAH, PSH-P100GAH Service Manual

SERVICE MANUAL

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

No. OC332

REVISED EDITION-B

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

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

12

7. OUTLINES AND DIMENSIONS

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

14

8.

WIRING DIAGRAM

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

16

9.

REFRIGERANT SYSTEM DIAGRAM

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

17

10. TROUBLESHOOTING

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

18

11. SPECIAL FUNCTION

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

29

12. DISASSEMBLY PROCEDURE

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

32

13. PARTS LIST

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

35

14. RoHS PARTS LIST

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

39

Indoor unit
[Model names] [Service Ref.]

PSA-RP71GA PSA-RP71GA

PSA-RP71GA#1

PSA-RP100GA PSA-RP100GA

PSA-RP100GA#1

PSA-RP125GA PSA-RP125GA

PSA-RP125GA#1

PSA-RP140GA PSA-RP140GA

PSA-RP140GA#1

PSH-P71GAH PSH-P71GAH
PSH-P100GAH PSH-P100GAH
PSH-P125GAH PSH-P125GAH
PSH-P140GAH PSH-P140GAH

May 2008

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.

Revision:

• PSA-RP71~140GA#1 are added

in REVISED EDITION-B.

• Some descriptions have been

modified.

• Please void OC332
REVISED EDITION-A.

2

PSA-RP71GA PSA-RP71GA#1
PSA-RP100GA PSA-RP100GA#1
PSA-RP125GA PSA-RP125GA#1
PSA-RP140GA PSA-RP140GA#1

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

2

REFERENCE MANUAL

2-1. OUTDOOR UNIT’S SERVICE MANUAL

2-2. TECHNICAL DATA BOOK

TECHNICAL CHANGES

1

Service Ref. Service Manual No.
PUHZ-RP71/100/125/140VHA

(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-RP71/100/125/140VHA2

(1)

PUHZ-RP100/125/140YHA2

(1)

PUHZ-RP71/100VHA3
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

3

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

[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.

[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.

[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.

Gravimeter

Unit

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 RP100, 125 and 140, 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

Gravimeter

Unit

[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

77

Disperses air
up and down

Disperses air left
and right.

Removes dust and pollutants from intake air.

(Intakes air from room.)

PART NAMES AND FUNCTIONS

4

•

Controller

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

•

Indoor Unit

•

Operation buttons

PAR-21MAA

ON/OFF

FILTER

CHECK

OPERATION

CLEAR

TEST

TEMP.

MENU

BACK DAY

MONITOR/SET

CLOCK

ON/OFF

Set T emperature 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)

T o next operation number.

8

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
weak 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 the parent unit.
 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.

•

Display

99

SPECIFICATIONS

5

kW

A
A

kW

*/min(CFM)

Pa(mmAq)

kW

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) % No.
Fan motor output
Airflow(Low-High)
External static pressure
Booster heater
Operation control & Thermostat
Noise level(Low-High)
Unit drain pipe O.D.
Dimensions

Weight

W

D
H

INDOOR UNIT

PSA-RP100GA, PSA-RP100GA#1

Cooling

0.24

1.06

1.50

Heating

0.24

1.06

1.50

Single phase, 50Hz, 230V

Munsell 0.70Y 8.59/0.97

Plate fin coil

Centrifugal (direct) % 1

0.070

24-31(850-1,060)

0(direct blow)

Ñ

Remote controller & built-in

44-49

20(13/16)
600(23-5/8)
350(13-3/4)

1,900(74-13/16)

51(112)

Cooling

0.15

0.66

0.80

Heating

0.15

0.66

0.80

Single phase, 50Hz, 230V

Munsell 0.70Y 8.59/0.97

Plate fin coil

Centrifugal (direct) % 1

0.03

15-18(530-635)

0(direct blow)

Ñ

Remote controller & built-in

40-45

20(13/16)
600(23-5/8)
270(10-5/8)

1,900(74-13/16)

43(98)

PSA-RP71GA, PSA-RP71GA#1

kW

A
A

kW

*/min(CFM)

Pa(mmAq)

kW

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) % No.
Fan motor output
Airflow(Low-High)
External static pressure
Booster heater
Operation control & Thermostat
Noise level(Low-High)
Unit drain pipe O.D.
Dimensions

Weight

W
D
H

INDOOR UNIT

Cooling

0.28

1.23

1.50

Heating

0.28

1.23

1.50

Single phase, 50Hz, 230V

Munsell 0.70Y 8.59/0.97

Plate fin coil

Centrifugal (direct) % 1

0.11

26-33(920-1,165)

0(direct blow)

Ñ

Remote controller & built-in

46-51

20(13/16)
600(23-5/8)
350(13-3/4)

1,900(74-13/16)

51(112)

PSA-RP125GA, PSA-RP125GA#1

kW

A
A

kW

*/min(CFM)

Pa(mmAq)

kW

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) % No.
Fan motor output
Airflow(Low-High)
External static pressure
Booster heater
Operation control & Thermostat
Noise level(Low-High)
Unit drain pipe O.D.
Dimensions

Weight

W

D
H

INDOOR UNIT

10

kW

A
A

kW

*/min(CFM)

Pa(mmAq)

kW

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

Weight

W

D
H

INDOOR UNIT

PSA-RP140GA, PSA-RP140GA#1

Cooling

0.36

1.59

2.10

Heating

0.36

1.59

2.10

Single phase, 50Hz, 230V

Munsell 0.70Y 8.59/0.97

Plate fin coil

Centrifugal (direct) % 1

0.11

27-35(955-1,240)

0(direct blow)

Ñ

Remote controller & built-in

47-52

20(13/16)
600(23-5/8)
350(13-3/4)

1,900(74-13/16)

53(117)

kW

A
A

kW

*/min(CFM)

Pa(mmAq)

kW

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

kg(lbs)

Service Ref.

Mode
Power supply(phase, cycle, voltage)
Input +1
Running current +1
Starting current +1
External finish
Heat exchanger
Fan Fan(drive) % No.
Fan motor output
Airflow(Low-High)
External static pressure
Booster heater +1
Operation control & Thermostat
Noise level(Low-High)
Unit drain pipe O.D.
Dimensions

Weight

W

D
H

INDOOR UNIT

Cooling

0.15

0.66

0.80

Heating

0.15<1.93>

0.66<8.39>

0.80<8.39>

Single phase, 50Hz, 230V

Munsell 0.70Y 8.59/0.97

Plate fin coil

Centrifugal (direct) % 1

0.03

15-18(530-635)

0(direct blow)

<1.93>

Remote controller & built-in

40-45

20(13/16)
600(23-5/8)
270(10-5/8)

1,900(74-13/16)

45(99)

PSH-P71GAH

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

Cooling

0.24

1.06

1.50

Heating

0.24<2.48>

1.06<10.78>

1.50<10.78>

Single phase, 50Hz, 230V

Munsell 0.70Y

8.59/0.97

Plate fin coil

Centrifugal (direct) % 1

0.07

24-31(850-1,060)

0(direct blow)

<2.48>

Remote controller & built-in

44-49

20(13/16)

600(23-5/8)
350(13-3/4)

1,900(74-13/16)

53(117)

kW

A
A

kW

*/min(CFM)

Pa(mmAq)

kW

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

kg(lbs)

W

D
H

INDOOR UNIT

PSH-P100GAH

Service Ref.

Mode
Power supply(phase, cycle, voltage)
Input +1
Running current +1
Starting current +1
External finish
Heat exchanger
Fan Fan(drive) % No.
Fan motor output
Airflow(Low-High)
External static pressure
Booster heater +1
Operation control & Thermostat
Noise level(Low-High)
Unit drain pipe O.D.
Dimensions

Weight

11

Cooling

0.28

1.23

1.50

Heating

0.28<2.76>

1.23<12.00>

1.50<12.00>

Single phase, 50Hz, 230V

Munsell 0.70Y 8.59/0.97

Plate fin coil

Centrifugal (direct) % 1

0.11

26-33(920-1,165)

0(direct blow)

<2.76>

Remote controller & built-in

46-51

20(13/16)
600(23-5/8)
350(13-3/4)

1,900(74-13/16)

53(117)

kW

A
A

kW

*/min(CFM)

Pa(mmAq)

kW

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

kg(lbs)

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

Weight

W
D
H

INDOOR UNIT

PSH-P125GAH

Cooling

0.36

1.59

2.10

Heating

0.36<2.76>

1.59<12.00>

2.10<12.00>

Single phase, 50Hz, 230V

Munsell 0.70Y 8.59/0.97

Plate fin coil

Centrifugal (direct) % 1

0.11

27-35(955-1,240)

0(direct blow)

<2.76>

Remote controller & built-in

47-52

20(13/16)
600(23-5/8)
350(13-3/4)

1,900(74-13/16)

55(121)

kW

A
A

kW

*/min(CFM)

Pa(mmAq)

kW

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

kg(lbs)

W
D
H

INDOOR UNIT

PSH-P140GAH

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

Weight

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

12

90

80

70

60

50

40

30

20

10

63 125 250 500 1000 2000 4000 8000

APPROXIMATE
THRESHOLD OF
REARING 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

PSA-RP71GA
PSA-RP71GA#1
PSH-P71GAH

NOTCH

High

Low

SPL(dB)

45
40

LINE

90

80

70

60

50

40

30

20

10

63 125 250 500 1000 2000 4000 8000

APPROXIMATE
THRESHOLD OF
REARING 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

PSA-RP100GA
PSA-RP100GA#1
PSH-P100GAH

NOTCH

High
Low

SPL(dB)

49
44

LINE

90

80

70

60

50

40

30

20

10

63 125 250 500 1000 2000 4000 8000

APPROXIMATE
THRESHOLD OF
REARING 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

PSA-RP125GA
PSA-RP125GA#1
PSH-P125GAH

NOTCH

High

Low

SPL(dB)

51
46

LINE

NOISE CRITERION CURVES

6

1313

90

80

70

60

50

40

30

20

10

63 125 250 500 1000 2000 4000 8000

APPROXIMATE
THRESHOLD OF
REARING 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

PSA-RP140GA
PSA-RP140GA#1
PSH-P140GAH

NOTCH

High

Low

SPL(dB)

52
47

LINE

1m

1m

unit

about 1.4m

MICROPHONE

floor

14

125

240

Front side

Metal fixture

against overturning

controller

Rear side

Knockout hole

for branch duct

100

10

3838

50260

130130

766

1900

608

50

115

714 123

767

110

480

590

216

40

82730

2010

130

132

VIEW "A"

A

340

370

520

260

240

130 71

530

600

270

250

70

180

235

Knockout hole for

wiring.:27

(Provided on both sides)

Knockout hole for refrigerant and drainage.

90 60 oval (Provided on both sides)

Knockout hole for piping and wiring

(140 80 oval)

20

105

Terminal block for

indoor/outdoor

connection.

Electrical parts box

Liquid pipe :9.52(3/8F)

1. Service access allows for

insertion of screw driver.

2. Adjustable

Gas pipe :15.88(5/8F)

Drain pipe

Terminal block for

heater power supply

(Only PSH-P¥GAH)

95

46122

47

Front side

Rear side

Knockout hole

for bottom fixing

Knockout hole

for under-piping

Knockout hole for

under-piping(120 70 oval)

277

160

20

218

175

90

55 143

100

95

40 66

186

100 or more 100 or more

2

5 or more

1

300 or more

Front 1,000 or more

10

PSA-RP71GA
PSA-RP71GA#1
PSH-P71GAH

Unit : mm

OUTLINES AND DIMENTIONS

7

1515

125

240

Front side

Metal fixture

against overturning

controller

Rear side

Knockout hole

for branch duct

100

10
3838

50260

130130

766

1900

608

50

115

714 123

767

110

480

590

216

40

82730

2010

130

132

340

370

520

260

240

130 71

530

600

350

330

70

260

315

Knockout hole for

wiring.:27 (Provided on both sides)

Knockout hole for refrigerant and drainage.

90 60 oval (Provided on both sides)

Knockout hole for piping and wiring

(140 80 oval)

20

105

Electrical parts box

Liquid pipe :9.52(3/8F)

1. Service access allows for

insertion of screw driver.

2. Adjustable

Gas pipe :15.88(5/8F)

:19.05(3/4F)

Drain pipe

95

46122

47

Front side

Rear side

Knockout hole

for bottom fixing

Knockout hole

for under-piping

Knockout hole for

under-piping(120 70 oval)

277

120

20

218

255

140

77

201

120

95

40 66

261

100 or more 100 or more

2

5 or more

1

300 or more

Front 1,000 or more

10

VIEW "A"

A

Terminal block for

indoor/outdoor

connection.

Terminal block for

heater power supply

(Only PSH-P·GAH)

: 9.52

RP100,125,140

: 15.88

: 19.05

Use the current nuts meeting the pipe size

of the outdoor unit.

Available pipe size

LIQUID SIDE

GAS SIDE

: 9.52

P100,125,140—: 19.05

: Initial flare nut size

PSA-RP100GA
PSA-RP100GA#1
PSH-P100GAH
PSA-RP125GA
PSA-RP125GA#1
PSH-P125GAH
PSA-RP140GA
PSA-RP140GA#1
PSH-P140GAH

Unit : mm

16

PSA-RP71GA PSA-RP100GA PSA-RP125GA PSA-RP140GA
PSA-RP71GA#1 PSA-RP100GA#1 PSA-RP125GA#1 PSA-RP140GA#1
PSH-P71GAH PSH-P100GAH PSH-P125GAH PSH-P140GAH

1357

MF

ORN

C

RED

BLK

BLU

YLW

13 13 13 12

1

2

2
1

3

13

ML

YLW

YLW

BLK

ORN

YLW

YLW
ORNS1S2

S3

WHT

WHT

WHT

BRN

ORN

RED

I.B

FAN
(WHT)

LOUVER
CNL
(YLW)

X4X5X6

X6

X5 X4

X2

ZNR

FUSE

X2

LED3 LED2 LED1

SWE

ON
OFF

POWER
CNDK
(RED)

POWER
CND
(ORN)

POWER
CN2D
(WHT)

WIRELESS

CN90

(WHT)

2
1

REMOCON

CN22

(BLU)

CN32

CN2L

2

1

TB6

2
2

1
1

2
1

LIQUID
CN21
(WHT)

INTAKE
CN20
(RED)

PIPE
CN29
(BLK)

CN24 CN41

CN51

R.B

TRANSMISSION
WIRES DC12V

BLU
BLU

TH1

TH2

TH5

SW1SW2

TB4

REDRED

WHT

RED
BLU

GRN/YLW

88H

FS1FS2

H

53

1
2

L
N

TB2

POWER SUPPLY
~(1 PHASE)
230V 50Hz

2
1

6
5

RED
RED

YLW

26H

88H

YLW

YLW

16

HEATER

CN24
(YLW)

I.B

PSH -P.GAH

models only

INDOOR UNIT

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

INDOOR/OUTDOOR

COMMUNICATION

CN3C

(BLU)

Refer to tables 1
and 2 for service PCB.

P.B

CNSK
(RED)

CN2S
(WHT)

DC13.1V

TO
OUTDOOR
UNIT

3131

POWER

CND

(ORN)

INDOOR/OUTDOOR

COMMUNICATION

CN3C

(BLU)

TB2

TB4

POWER SUPPLY
~(1PHASE)
230V 50Hz

RED

BLU

GRY/YLW

RED

BLU

TO
OUTDOOR
UNIT

L

S1
S2

S3

N

I.B

YLW

ORN

ORN

BRN

1 (Fig.1)

Service board

SW2

Table 2

1 2 3 4 5

MODELS

PSA-RP71GA
PSH-P71GAH

PSA-RP100GA

PSH-P100GAH

PSA-RP125GA

PSH-P125GAH

PSA-RP140GA

PSH-P140GAH

ON
OFF

1 2 3 4 5

ON
OFF

1 2 3 4 5

ON
OFF

1 2 3 4 5

ON
OFF

Service board

SW2

Table 1

1 2 3 4 5

MODELS
PSA-RP.GA

PSH-P.GAH

ON
OFF

P.B

INDOOR POWER BOARD

SYMBOL NAME SYMBOL NAME SYMBOL NAME

I.B

I.B

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) See Table 1.

SW2

SWITCH (CAPACITY CODE) See Table 2.

SWE SWITCH (EMERGENCY OPERATION)

X4 RELAY (FAN MOTOR)
X5 RELAY (FAN MOTOR)
X6 RELAY (FAN MOTOR)

X2

RELAY (LOUVER)

POWER SUPPLY (R.B)

LED1 POWER SUPPLY (I.B)
LED2

TRANSMISSION (INDOOR-OUTDOOR)LED3

WIRED REMOTE CONTROLLER BOARD
TERMINAL BLOCK (REMOTE CONTROLLER

TRANSMISSION LINE)

R.B

TB6

HEATER

HEATER

THERMAL FUSE (110°C16A)

H

FS1,2

HEATER THERMAL SWITCH

26H

HEATER CONTACTOR

88H

C CAPACITOR (FAN MOTOR)

FAN MOTOR

MF

LOUVER MOTOR

ML
TB2

TERMINAL BLOCK
(INDOOR/OUTDOOR CONNECTING LINE)

TB4

TERMINAL BLOCK (HEATER) PSH-P.GAH
models only or option for PSA-RP.GA models.

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)

TH1

TH2

TH5

[NOTES]

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

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

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

4.This diagram shows the wiring of Indoor and Outdoor connecting wires
(specification of 230V), adopting superimposed system of power and signal.

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

17

PSA-RP71GA PSA-RP100GA PSA-RP125GA PSA-RP140GA
PSA-RP71GA#1 PSA-RP100GA#1 PSA-RP125GA#1 PSA-RP140GA#1
PSH-P71GAH PSH-P100GAH PSH-P125GAH PSH-P140GAH

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

18

TROUBLESHOOTING

10

<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.

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.

1919

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.

20

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)’.

(

)

21

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).

(

)

22

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.

23

(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.

24

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.

25

White

Orage

Red

Black

Blue

Yellow

White

Orage

Red

Blue

Black

Brown

Yellow

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

Heater(H)
(Only PSH)

Normal

Abnormal

71

18.9

0.7kW 80V

100

14.7

0.9kW 80V

125, 140

13.2

1kW 80V

Open or short

Parts name Check points

Disconnect the connector then measure the resistance using a tester

.

(Surrounding temperature 10~30)

(Refer to the <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

Fan motor(MF)
71, 100

125, 140

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

Abnormal

Open or short

White–Black

Black–Blue

Blue–Yellow

Black–Red

Motor terminal

or

Relay connector

71

112.1

22.1

41.0

178.5

100

91.5

18.0

29.6

174.9

Normal

Abnormal

Open or short

White–Brown
Brown–Black

Black–Blue
Blue–Yellow
Yellow–Red

Motor terminal

or

Relay connector

125

28.0

6.9

13.3

8.4

53.6

140

21.7

7.8

14.3

7.7

54.4

Normal

Measure the resistance between the terminals using a tester.
(Surrounding temperature 25)

Louver motor(ML)

Normal

11000~13000

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=3480 ± 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

10-5. HOW TO CHECK THE PARTS
PSA-RP71GA PSA-RP100GA PSA-RP125GA PSA-RP140GA
PSA-RP71GA#1 PSA-RP100GA#1 PSA-RP125GA#1 PSA-RP140GA#1
PSH-P71GAH PSH-P100GAH PSH-P125GAH PSH-P140GAH

26

10-6. TEST POINT DIAGRAM

10-6-1. Power board
PSA-RP71GA PSA-RP100GA PSA-RP125GA PSA-RP140GA
PSA-RP71GA#1 PSA-RP100GA#1 PSA-RP125GA#1 PSA-RP140GA#1
PSH-P71GAH PSH-P100GAH PSH-P125GAH PSH-P140GAH

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 (+))

27

10-6-2. Indoor controller board
PSA-RP71GA PSA-RP100GA PSA-RP125GA PSA-RP140GA
PSA-RP71GA#1 PSA-RP100GA#1 PSA-RP125GA#1 PSA-RP140GA#1
PSH-P71GAH PSH-P100GAH PSH-P125GAH PSH-P140GAH

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)

}

}

Non polarity

+

–

+

–

CN41
Connector
(HA terminal-A)

CNL
Louver motor output
(220~240V AC)

28

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

1 2 3 4 5

1 2 3 4 5

PSA-RP71GA
PSH-P71GAH

1 2 3 4 5

ON
OFF

PSA-RP100GA
PSH-P100GAH

ON
OFF

PSA-RP125GA
PSH-P125GAH

1 2 3 4 5

ON
OFF

PSA-RP140GA
PSH-P140GAH

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.

2929

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 PSA-RP71/100/125/140GA#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

30

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

31

(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]





















32

OPERATING PROCEDURE PHOTOS

1. Removing the intake grille

(1) Remove the screw at the centre of the knob of
the intake grille.
(2) Pull the knob of the intake grille toward you.
(3) Remove the 2 hangers.
(4) Lift the intake grille to remove.

2. Removing the indoor controller board

(1) Remove the intake grille.
(2) Remove the 3 screws of the electrical parts
cover and remove the electrical parts cover.
(3) Disconnect the fan motor connector and the
connectors on the indoor controller board.
(4) Unhook the catch of the controller case by
opening, and remove the indoor controller board.

3. Removing the room temperature thermistor

(1) Remove the intake grille.
(2) Remove the electrical parts cover.
(3) Take out the room temperature thermistor with
the holder. (See Photo 3.)
(4) Pull the room temperature thermistor out of the
holder.
(5) Disconnect the red connector CN20 on the
indoor controller board.

4. Removing the indoor fan and the indoor fan
motor

(1) Remove the intake grille.
(2) Remove the fan GUARD.
(3) Turn the bell mouth clockwise to remove.
(4) Remove the fan nut and the washer.
(5) Pull out the indoor fan. (See Photo 2.)
(6) Remove the 2 screws of the wiring cover and
remove the wiring cover.
(7) Remove the 4 fan-motor nuts and remove the
indoor fan motor.
(8) Remove the electrical parts cover.
(9) Disconnect the fan motor connector.
(See Photo 3.)

Photo 1

Photo 2

Photo 3

Photo 4

Knob

Hanger

Intake grill

Capacitor

Fan motor connector Indoor controller board

Room
temperature
thermistor

Relay

Transformer

Controller case

Catches

Nuts

Indoor fan
motor

Screws

Wiring cover

Electrical parts box

Screws

Bell mouth

Indoor fan

Fan nut & washer

Electrical
parts cover

Heater con­nector

PSH-P71GAH PSH-P100GAH PSH-P125GAH PSH-P140GAH
PSA-RP71GA PSA-RP100GA PSA-RP125GA PSA-RP140GA
PSA-RP71GA#1 PSA-RP100GA#1 PSA-RP125GA#1 PSA-RP140GA#1

DISASSEMBLY PROCEDURE

12

3333

OPERATING PROCEDURE PHOTOS

5. Removing the front panel

(1) Remove the intake grille.
(2) Remove the 2 screws at the lower part of the
front panel.
(3) Pull the front panel down to remove.
(4) Disconnect the blue connector of the controller.

6. Removing the louver motor

(1) Remove the intake grille.
(2) Remove the front panel.
(3) Remove the 5 screws of the swing louver and
remove the swing louver.
(4) Remove the 2 screws of the louver motor and
remove the louver motor.
(5) Remove the electrical parts cover.
(6) Disconnect the yellow connector CNL (LOUVER)
on the indoor controller board.

7. Removing the indoor coil thermistor

(1) Remove the intake grille.
(2) Remove the front panel.
(3) Remove the 10 screws of the insulation panel
and remove the insulation panel .
(4) Remove the swing louver.
(5) Remove the screw of the piping cover and
remove the piping cover.
(6) Remove the indoor coil thermistor from the
holder on the copper pipe.
(7) Remove the electrical parts cover.
(8) Disconnect the connector CN21 on the indoor
controller board.

Photo 5

Photo 6

Photo 7

Photo 8

Photo 9

Swing louver

Controller

Screws

Top panel

Front panel

Swing
louver
screws

Screws

Swing
louver

Swing louver

<Back view of swing louver>

Piping cover

Screw

Screw

Insulation panel

Indoor heat
exchanger

Indoor coil
thermistor

Screws

Screws

Louver motor

34

Screws

OPERATING PROCEDURE PHOTOS

8. Removing the booster heater

(1) Remove the intake grille.
(2) Remove the front panel.
(3) Remove the insulation panel.
(4) Remove the green connector of the heater.

9. Removing the indoor heat exchanger

(1) Remove the intake grille.
(2) Remove the front panel.
(3) Remove the insulation panel.
(4) Remove the 6 screws of the top panel and
remove the top panel.
(5) Remove the swing louver.
(6) Remove the electrical parts box.
(7) Remove the 3 screws of the drain pan support
and remove the drain pan support.
(8) Remove the 4 screws of the indoor heat
exchanger to remove it.

10. Removing the drain pan

(1) Remove the intake grille.
(2) Remove the front panel.
(3) Remove the insulation panel.
(4) Remove the top panel.
(5) Remove the swing louver.
(6) Remove the electrical parts box and the drain
pan support.
(7) Remove the pipe support.
(8) Remove the drain pan.

Photo 10

Photo 11

Photo 12

Swing louver

Booster heater

Screws

Drain pan
support

Electrical
parts box

Drain pan

Drain pan support

Indoor heat exchanger

Indoor heat
exchanger

Screws

Pipe support

Screws

3535

PARTS LIST (non-RoHS compliant)

13

Recom-

mended

Q’ty

Part No.

Part Name

Specification

Remarks

(Drawing No.)

Wiring

Diagram

Symbol

No.

1
2

3

4
5
6

7

8

9
10
11
12

13

14
15
16
17
18

19

20
21

22

23
24
25

R01 A28 529
R01 E02 239
R01 580 255
R01 E01 255
T7W E23 716
T7W A14 716
R01 71G 215
T7W 551 762
T7W 552 762
R01 71G 117
R01 85G 117
R01 71G 527
R01 08K 097
R01 A28 675
R01 E00 119
R01 71G 114
R01 85G 114
R01 E41 202
R01 E02 313
T7W E41 310
R01 110 700
T7W 23J 706
T7W E02 300
T7W E14 300
R01 E44 202
T7W E23 202
T7W E32 480
T7W E33 480
T7W E59 480
T7W E00 675
R01 20J 303
R01 18J 303

DRAIN PAN
FUSE
FAN MOTOR CAPACITOR
FAN MOTOR CAPACITOR
TERMINAL BLOCK
TERMINAL BLOCK
HEATER RELAY
FAN MOTOR
FAN MOTOR
SCROLL
SCROLL
DRAIN HOSE
SPL WASHER
FAN GUARD
BELL MOUTH
SIROCCO FAN
SIROCCO FAN
THERMISTOR (ROOM TEMPERATURE)
POWER BOARD
INDOOR CONTROLLER BOARD
HEATER THERMAL SWITCH
THERMAL FUSE
HEATER ELEMENT
HEATER ELEMENT
THERMISTOR (PIPE TEMPERATURE)
THERMISTOR (COND TEMPERATURE)
HEAT EXCHANGER
HEAT EXCHANGER
HEAT EXCHANGER
HEATER GUARD
INSULATOR
INSULATOR

250V 6.3A

3.5 440V

4.0 440V
(S1,S2,S3)
(L,N,)
LY-3F 12VDC
PA8V30-SB
PA8V70-SB

OFF80ON60
11016A 250V
700W 80V
900W 80V

1
1
1

1
1
1
1

1

1
1
1
1
1

1
1
1
1
1
3

1
1
1

1
1
6

1
1
1

1

1

1

1
1
1
1
1

1
1
1

1
1
1

1
1

1
1

1

1
1
1
1
1

1
1
1
1

1
1

1

FUSE

C

C
TB4
TB2
88H

MF
MF

TH1

P.B

I.B

26H

FS1,2

H

H
TH2
TH5

71 100 71 100

GAH

1
1

1
1
1
1

1

1
1
1
1
1

1
1
1
1
1
1

3
1
1

1

1
6

GA

PSH-P PSA-RP

17

18

22

20

19

15

9

4

8

7

5

1
2

6

3

14

16

13

10

12

FUNCTIONAL PARTS
PSH-P71GAH
PSH-P100GAH
PSA-RP71GA
PSA-RP100GA

11

21

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

36

FUNCTIONAL PARTS
PSH-P125GAH
PSH-P140GAH
PSA-RP125GA
PSA-RP140GA

17

18

22

20

19

15

9

4

8

7

5

1

2

6

3

14

16

13

10

12

11

21

37

Recom­mended

Q’ty

Part No.

Part Name

Specification

PSH-P

PSA-RP

Remarks

(Drawing No.)

Wiring

Diagram

Symbol

No.

1
2
3
4
5
6

7

8

9
10
11
12
13
14
15
16
17
18
19
20
21

22

23
24

R01 A28 529
R01 E02 239
R01 736 255
T7W E23 716
T7W A14 716
R01 71G 215
T7W 553 762
T7W 554 762
R01 85G 117
R01 71G 527
R01 08K 097
R01 A28 675
R01 E00 119
R01 85G 114
R01 E41 202
R01 E02 313
T7W E41 310
R01 110 700
T7W 23J 706
T7W 553 300
R01 E44 202
T7W E23 202
T7W E34 480
T7W E35 480
T7W E60 480
T7W E61 480
R01 20J 303
R01 18J 303

DRAIN PAN
FUSE
FAN MOTOR CAPACITOR
TERMINAL BLOCK
TERMINAL BLOCK
HEATER RELAY
FAN MOTOR
FAN MOTOR
SCROLL
DRAIN HOSE
SPL WASHER
FAN GUARD
BELL MOUTH
SIROCCO FAN
THERMISTOR (ROOM TEMPERATURE)
POWER BOARD
INDOOR CONTROLLER BOARD
HEATER THERMAL SWITCH
THERMAL FUSE
HEATER ELEMENT
THERMISTOR (PIPE TEMPERATURE)
THERMISTOR (COND TEMPERATURE)
HEAT EXCHANGER
HEAT EXCHANGER
HEAT EXCHANGER
HEAT EXCHANGER
INSULATOR
INSULATOR

250V 6.3A

5.0 440V
(S1,S2,S3)
(L,N,)
LY-3F 12VDC
PA8V110-SB
PA8V120-SB

OFF80ON60
110 16A 250V
1000W 80V

1
1
1
1
1
1
1

1
1
1
1
1
1
1
1
1
1
1
3
1
1
1

1
6

1
1
1
1
1
1

1
1
1
1
1
1
1
1
1
1
1
1
3
1
1

1

1
6

1
1
1
1

1
1
1
1
1
1
1
1
1
1

1
1

1

1
1
1
1

1

1
1
1
1
1
1
1
1
1

1
1

1

FUSE

C
TB4
TB2

88H

MF
MF

TH1

P.B

I.B

26H

FS1,2

H
TH2
TH5

125 125140 140

GAH GA

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

38

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

STRUCTURAL PARTS
PSH-P71GAH
PSH-P100GAH
PSH-P125GAH
PSH-P140GAH
PSA-RP71GA
PSA-RP100GA
PSA-RP125GA
PSA-RP140GA

71 71

GAH GA

100

125,140

100

125,140

No.

Part No.

Part Name

Specification

PSH-P PSA-RP

Remarks

(Drawing No.)

Wiring

Diagram

Symbol

Recom-

mended

Q'ty

1

2

3

4
5

6
7
8

9
10
11
12

13
14

15

16

17
18

1

1

1

1
1
1
1
1
8

1
1

1
6

1
1

1
1
1

1

1

1

1

1
1
1
1
8

1
1

1
6

1
1
1

1
1

1

1

1

1
1
1
1
1

8
1

1
1

6
1
1

1
1
1

1

1

1

1

1
1
1
1

8
1

1
1

6
1
1
1

1
1

R.B

ML

R01 71G 676
R01 85G 676
T7W E00 662
T7W E01 662
R01 71G 686
R01 85G 686
R01 71G 661
R01 85G 661
R01 E12 691
R01 A28 500
T7W E09 713
R01 71G 651
R01 71G 035
T7W E00 035
R01 71G 019
T7W 87J 003
T7W E00 003
R01 71G 021
R01 71G 038
T7W E00 038
T7W 87J 222
R01 71G 060
R01 71G 641
R01 85G 641
R01 12G 523
R01 87J 097

REAR PANEL
REAR PANEL
SIDE PANEL L
SIDE PANEL L
BASE
BASE
SIDE PANEL R
SIDE PANEL R
INTAKE GRILLE
AIR FILTER
REMOTE CONTROLLER
FRONT PANEL
GUIDE VANE (H)
GUIDE VANE (H)
VANE ARM (H)
SWING LOUVER
SWING LOUVER
VANE ARM (V)
GUIDE VANE (V)
GUIDE VANE (V)
LOUVER MOTOR
CRANK
TOP PANEL
TOP PANEL
DRAIN SOCKET
KNOB SCREW

16 15 12

11

5

4

2

1

3

6

7

8

9

10

14 13

3939

RoHS PARTS LIST

14

17

18

22

20

19

15

9

4

8

7

5

1
2

6

3

14

16

13

10

12

FUNCTIONAL PARTS
PSH-P71GAH
PSA-RP71GA
PSA-RP71GA#1
PSH-P100GAH
PSA-RP100GA
PSA-RP100GA#1

11

21

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

No.

Part No. Part Name

Specifi cations

PSH-P PSA-RP

Remarks

(Drawing No.)

Wiring

Diagram

Symbol

Recom-

mended

Q'ty

71 100 71 100 71 100

GAH GA GA#1
1 G R01 A30 529 DRAIN PAN 111111
2 G R01 E06 239 FUSE 250V 6.3A 111111 FUSE

3

G R01 902 255

FAN MOTER CAPACITOR

3.5+ 440V 1 1 1 C

G R01 901 255

FAN MOTER CAPACITOR

4.0+ 440V 1 1 1 C

4 G T7W E32 716 TERMINAL BLOCK (L, N,

;

) 1 1 TB2

5 G R01 E20 246 TERMINAL BLOCK (S1, S2, S3) 111111 TB4
6 G R01 E03 215 HEATER RELAY LY-3F 12VDC 1 1 88H

7

G T7W 650 762 FAN MOTOR PA8V30-SB 1 1 1 MF
G T7W 651 762 FAN MOTOR PA8V70-SC 1 1 1 MF

8

G R01 90G 117 SCROLL 1 1 1
G R01 91G 117 SCROLL 1 1 1

9 G R01 80G 527 DRAIN HOSE 111111

10 G R01 09K 097 SPL WASHER 111111
11 G R01 A30 675 FAN GUARD 111111
12 G R01 E04 119 BELL MOUTH 111111

13

G R01 E31 114 SIROCCO FAN 1 1 1
G R01 E27 114 SIROCCO FAN 1 1 1

14 G R01 901 202

THERMISTOR(ROOM TEMPERATURE)

111111 TH1

15 G R01 E38 313 POWER BOARD 111111 P.B
16

G T7W E51 310

INDOOR CONTROLLER BOARD

1111 I.B

G T7W E74 310

INDOOR CONTROLLER BOARD

1 1 I.B

17 G R01 E12 700

HEATER THERMAL SWITCH

OFF80°C ON60°C

1 1 26H

18 G T7W 25J 706 THERMAL FUSE

110°C 16A 250V

1 1 FS 1, 2

19

G T7W E19 300 HEATER ELEMENT 700W 80V 3 H
G T7W E20 300 HEATER ELEMENT 900W 80V 3 H

20 G R01 902 202

THERMISTOR(PIPE TEMPERATURE)

111111 TH2

21 G T7W 900 202

THERMISTOR(COND TEMPERATURE)

111111 TH5

22

G T7W H48 480 HEAT EXCHANGER 1 1 1
G T7W H49 480 HEAT EXCHANGER 1

G T7W H52 480 HEAT EXCHANGER 1 1
23 G T7W E17 675 HEATER GUARD 1
24 G R01 31J 303 INSULATOR 1 1
25 G R01 21J 303 INSULATOR 6 6

RoHS

40

FUNCTIONAL PARTS
PSH-P125GAH
PSA-RP125GA
PSA-RP125GA#1
PSH-P140GAH
PSA-RP140GA
PSA-RP140GA#1

17

18

22

20

19

15

9

4

8

7

5

1

2

6

3

14

16

13

10

12

11

21

41

No.

Part No. Part Name

Specifi cations

PSH-P PSA-RP

Remarks

(Drawing No.)

Wiring

Diagram

Symbol

Recom-

mended

Q'ty

125 140 125 140 125 140

GAH GA GA#1
1 G R01 A30 529 DRAIN PAN 111111
2 G R01 E06 239 FUSE 250V 6.3A 111111 FUSE
3 G R01 900 255

FAN MOTER CAPACITOR

5.0+ 440V 111111 C

4 G T7W E32 716 TERMINAL BLOCK (L, N,

;

) 1 1 TB2

5 G R01 E20 246 TERMINAL BLOCK (S1, S2, S3) 111111 TB4
6 G R01 E03 215 HEATER RELAY LY-3F 12VDC 1 1 88H

7

G T7W 652 762 FAN MOTOR PA8V110-SD 1 1 1 MF

G T7W 653 762 FAN MOTOR PA8V120-SC 1 1 1 MF
8 G R01 91G 117 SCROLL 111111
9 G R01 80G 527 DRAIN HOSE 111111

10 G R01 09K 097 SPL WASHER 111111
11 G R01 A30 675 FAN GUARD 111111
12 G R01 E04 119 BELL MOUTH 111111
13 G R01 E27 114 SIROCCO FAN 111111
14 G R01 901 202

THERMISTOR(ROOM TEMPERATURE)

111111 TH1

15 G R01 E38 313 POWER BOARD 111111 P.B

16

G T7W E51 310

INDOOR CONTROLLER BOARD

1111 I.B

G T7W E74 310

INDOOR CONTROLLER BOARD

1 1 I.B

17 G R01 E12 700

HEATER THERMAL SWITCH

OFF80°C ON60°C

1 1 26H

18 G T7W 25J 706 THERMAL FUSE

110°C 16A 250V

1 1 FS 1, 2
19 G T7W E10 300 HEATER ELEMENT 700W 80V 3 3 H
20 G R01 902 202

THERMISTOR(PIPE TEMPERATURE)

111111 TH2
21 G T7W 900 202

THERMISTOR(COND TEMPERATURE)

111111 TH5

22

G T7W H50 480 HEAT EXCHANGER 1
G T7W H51 480 HEAT EXCHANGER 1
G T7W H53 480 HEAT EXCHANGER 1 1

G T7W H54 480 HEAT EXCHANGER 1 1
23 G R01 31J 303 INSULATOR 1 1
24 G R01 21J 303 INSULATOR 6 6

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

RoHS

42

71 71

GAH GA

100

125,140

100

125,140

71

100

125,140

GA#1

No.

Part No.

Part Name

Specification

PSH-P PSA-RP

Remarks

(Drawing No.)

Wiring

Diagram

Symbol

Recom­mended

Q'ty

1

2

3

4
5

6
7
8

9

10

11
12

13
14

15

16

17
18

RoHS

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

1

1

1
1
1
1
1
8

1
1

1
6

1
1

1
1
1

1

1

1

1

1
1
1
1
8

1
1

1
6

1
1
1

1
1

1

1

1

1
1
1
1
1

8
1

1
1

6
1
1

1
1
1

1

1

1

1

1
1
1
1

8
1

1
1

6
1
1
1

1
1

R.B

ML

R01 90G 676
R01 91G 676
T7W E04 662
T7W E05 662
R01 90G 686
R01 91G 686
R01 90G 661
R01 91G 661
R01 E34 691
R01 A31 500
T7W E13 713
R01 90G 651
R01 90G 035
T7W E01 035
R01 90G 019
T7W E14 003
T7W E15 003
R01 90G 021
R01 90G 038
T7W E01 038
T7W E03 222
R01 90G 060
R01 90G 641
R01 91G 641
R01 E02 523
R01 88J 097

REAR PANEL
REAR PANEL
SIDE PANEL L
SIDE PANEL L
BASE
BASE
SIDE PANEL R
SIDE PANEL R
INTAKE GRILLE
AIR FILTER
REMOTE CONTROLLER
FRONT PANEL
GUIDE VANE (H)
GUIDE VANE (H)
VANE ARM (H)
SWING LOUVER
SWING LOUVER
VANE ARM (V)
GUIDE VANE (V)
GUIDE VANE (V)
LOUVER MOTOR
CRANK
TOP PANEL
TOP PANEL
DRAIN SOCKET
KNOB SCREW

1

1

1

1

1
1
1
1

8
1

1
1

6
1
1
1

1
1

1

1

1

1
1
1
1
1

8
1

1
1

6
1
1

1
1
1

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

STRUCTURAL PARTS
PSH-P71GAH
PSA-RP71GA
PSA-RP71GA#1
PSH-P100GAH
PSA-RP100GA
PSA-RP100GA#1
PSH-P125GAH
PSA-RP125GA
PSA-RP125GA#1
PSH-P140GAH
PSA-RP140GA
PSA-RP140GA#1

16 15 12

11

5

4

2

1

3

6

7

8

9

10

14 13

43

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.OC332 REVISED EDITION-B PDF 7
Distributed in Jul. 2006 No.OC332 REVISED EDITION-A PDF 8
Distributed in Jun. 2005 No.OC332 PDF 9
Made in Japan.

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

TM