Mitsubishi HWE05060 Service Manual

SERVICE MANUAL

<indoor unit> Service ref.

Models

PEAD-RP60GA
PEAD-RP71GA
PEAD-RP100GA

TM

1. REFERENCE MANUAL ····························· 2

2. SAFETY PRECAUTION ···························· 3

3. PART NAMES AND FUNCTIONS ············· 7

4. SPECIFICATION ······································· 9

5. FAN PERFORMANCE AND
CORRECTED AIR FLOW ·························10

6. OUTLINES & DIMENSIONS ···················· 12

7. WIRING DIAGRAM ·································· 13

8. REFRIGERANT SYSTEM DIAGRAM ······ 14

9. TROUBLESHOOTING ···························· 15

10

. DISASSEMBLY INSTRUCTIONS ············ 27

11

. PARTS LIST ············································· 29

12

. OPTIONAL PARTS ·································· 33

CONTENTS

INDOOR UNIT

REMOTE CONTROLLER

ON/OFF

TEMP.

Series PEAD

R407C/R410A

2005

NOTE:

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

SPLIT-TYPE, HEAT PUMP
AIR CONDITIONERS

2

REFERENCE MANUAL

1

Service Ref.

PUHZ-RP35/50/60/71/100/125/140VHA
PUHZ-RP100/125/140YHA

PUHZ-RP71/100/125/140VHA-A

PUHZ-RP200/250YHA

PUHZ-RP200/250YHA-A

PU(H)-P·VGAA.UK
PU(H)-P·YGAA.UK

SUZ-KA·VA.TH

Service Manual No.

OC334

OC337

OC338

OC339

OC336

OC322

1-1. OUTDOOR UNIT’S SERVICE MANUAL

Series (Outdoor unit)

PUHZ-RP·VHA(-A)
PUHZ-RP·YHA(-A)

PU(H)-P·VGAA.UK
PU(H)-P·YGAA.UK

Manual No.

OCS01

OCS02

1-2. TECHNICAL DATA BOOK

3

SAFETY PRECAUTION

2

[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.

Cautions for units utilising refrigerant R407C

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.

Gravimeter

Unit

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.

5

<Cautions for units utilizing refrigerant R410A>

CAUTIONS RELATED TO NEW REFRIGERANT

Use new refrigerant pipes.

In case of using the existing pipes for R22, be careful with
the following.
á For RP4 be sure to perform pipe replacement operation

before test run.

á Use flare nut as provided with this product.

Use a newly flared pipe.

áAvoid using thin pipes. For the detail, please refer to the

outdoor unit service manual No. OC294.

Do not use refrigerant other than R410A.

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

Use a vacuum pump with a reverse flow check
valve.

If no reverse flow check valve is used, 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 com-
pressor.

Do not use a charging cylinder.

If a charging cylinder is used, the composition of refrigera-
nt 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)

Make sure that the inside and outside of refrige­rant piping is clean and it has no contamination
such as sulfur which is 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.

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.

Contamination inside refrigerant piping can cause deterio-
ration of refrigerant oil etc.

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

If large amount of mineral oil enter, that can cause deterio-
ration 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 system with the 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

Ensure that the cylinder for R410A is syphon type.
Charging should be performed with the syphon cylinder type stood vertically. (Refrigerant must be charged from liquid phase.)

6

Gravimeter

Unit

[3] Service tools

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

No. 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

7

PART NAMES AND FUNCTIONS

3

•

Indoor Unit

Air intake (sucks the
air from inside the
room into the unit)

Air outlet

A

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. The room
temperature display range is 8–39°C.
The display flashes if the temperature
is less than 8 °C or 39 °C or more.

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.

8

• Remote controller

• Display

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.

Built-in temperature sensor

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 the 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.

9

Service Ref.
Power supply

Input kW
Running current

❇

1

❇

1

❇

1

❇

1

A

Starting current A
External finish
Heat exchanger

Fan

Fan (drive) × No.

Fan motor output kW

Airflow (Lo-Hi)

m

3

/min <CFM>

External static pressure Pa
Booster heater kW
Operation control & Thermostat

Noise level (Lo-Hi)

dB (A)

Unit drain pipe O.D mm (in.)
Dimensions W mm (in.)

D mm (in.)
H mm (in.)

kg (lbs)

Notes 1. Above data based on indicated voltage

Indoor Unit: Single phase 230V 50Hz
Outdoor Unit: Single phase 230V 50Hz/3 phase 400V 50Hz

INDOOR UNIT

Weight

5/35/50Pa at 220V

10/50/70Pa at 230V

20/60/75Pa at 240V

Service Ref.
Power supply

Input kW

Running current

❇

1

❇

1

❇

1

❇

1

A

Starting current A
External finish
Heat exchanger

Fan

Fan (drive) × No.

Fan motor output kW

Airflow (Lo-Hi)

m

3

/min <CFM>

External static pressure Pa
Booster heater kW
Operation control & Thermostat

Noise level (Lo-Hi)

dB (A)

Unit drain pipe O.D mm (in.)
Dimensions W mm (in.)

D mm (in.)
H mm (in.)

kg (lbs)

INDOOR UNIT

Weight

5/35/50Pa at 220V

10/50/70Pa at 230V

20/60/75Pa at 240V

Service Ref.
Power supply

Input kW

Running current

❇

1

❇

1

❇

1

❇

1

A

Starting current A
External finish
Heat exchanger

Fan

Fan (drive) × No.

Fan motor output kW

Airflow (Lo-Hi)

m

3

/min <CFM>

External static pressure Pa
Booster heater kW
Operation control & Thermostat

Noise level (Lo-Hi)

dB (A)

Unit drain pipe O.D mm (in.)
Dimensions W mm (in.)

D mm (in.)
H mm (in.)

kg (lbs)

INDOOR UNIT

Weight

5/35/50Pa at 220V

10/50/70Pa at 230V

20/60/75Pa at 240V

Single phase, 50Hz, 220-240V

0.18

0.80

1.03

Galvanized sheets

Plate fin coil

Centrifugal (direct) × 2

0.10

16.5-21<582-741>

❇

16-20<565-706> at 220V/5Pa, 230V/10Pa, 240V/20Pa

5/35/50Pa at 220V, 10/50/70Pa at 230V, 20/60/75Pa at 240V

–

Built in remote controller

32-36/33-39/34-41

33-37/35-40/36-42

35-39/37-42/37-43

32 (1-1/4)

1171 (46-1/8)

740 (29-1/8)

275 (10-13/16)

42 (93)

PEAD-RP60GA

Single phase, 50Hz, 220-240V

0.21

0.94

1.21

Galvanized sheets

Plate fin coil

Centrifugal (direct) × 2

0.10

20-25<706-883>

❇

19-24<671-847> at 220V/5Pa, 230V/10Pa, 240V/20Pa

5/35/50Pa at 220V, 10/50/70Pa at 230V, 20/60/75Pa at 240V

–

Built in remote controller

34-37/35-40/36-42

35-38/37-41/37-43

37-40/38-42/38-43

32 (1-1/4)

1171 (46-1/8)

740 (29-1/8)

275 (10-13/16)

42 (93)

PEAD-RP71GA

Single phase, 50Hz, 220-240V

0.28

1.25

1.61

Galvanized sheets

Plate fin coil

Centrifugal (direct) × 2

0.16

26.5-33<935-1165>

❇

25.5-32<900-1130> at 220V/5Pa, 230V/10Pa, 240V/20Pa

5/35/50Pa at 220V, 10/50/70Pa at 230V, 20/60/75Pa at 240V

–

Built in remote controller

38-42/40-45/40-46

40-43/42-45/42-46

42-45/43-46/43-47

32 (1-1/4)

1411 (55-9/16)

740 (29-1/8)

275 (10-13/16)

50 (111)

PEAD-RP100GA

SPECIFICATION

4

10

14 15 16 17 18 19 20 21 22 23 24 25 26 27

14 15 16 17 18 19 20 21 22 23 24 25 26 27

14 15 16 17 18 19 20 21 22 23 24 25 26 27

0

10

20

30

40

50

60

70

80

90

100

110

Upper limit

120

130

Airflow rate (m3/min) Airflow rate (m3/min)

Fan performance <220V>

Extemal static pressure (Pa)

0

10

20

30

40

50

60

70

80

90

100

110

120

130

Extemal static pressure (Pa)

Fan performance <230V>

Corrected air flow

High(50Pa)

High(35Pa)

High(10Pa)

High(50Pa)

High(70Pa)

High(5Pa)

Low

0

10

20

30

40

50

60

70

80

90

100

110

Upper limit

120

130

17

0.8

0.85

0.95

1.05

1.1

0.9

1

18 19 20 21 22 23 24 25 26 27 28

Airflow rate (m3/min)

Airflow (m

3

/min)

Fan performance <240V>

Extemal static pressure (Pa)

High(75Pa)

High(60Pa)

High(20Pa)

Low

Low

Upper limit

Correction factor

Cooling capacity

Heating capacity

PEAD-RP71GA

10

PEAD-RP60GA

12

0

10

20

30

40

50

60

70

80

90

100

110

Upper limit

120

130

13 14 15 16 17 18 19 20 21 22 23

Airflow rate (m3/min)

12 13 14 15 16 17 18 19 20 21 22 23

Airflow rate (m3/min)

Fan performance <220V>

Extemal static pressure (Pa)

0

10

20

30

40

50

60

70

80

90

100

110

120

130

Extemal static pressure (Pa)

Fan performance <230V>

Corrected air flow

High(50Pa)

High(35Pa)

High(10Pa)

High(50Pa)

High(70Pa)

High(5Pa)

Low

12

0

10

20

30

40

50

60

70

80

90

100

110

120

130

13 14 15 16 17 18 19 20 21 22 23

14

0.8

0.85

0.95

1.05

1.1

0.9

1

15

Heating capacity

Cooling capacity

16 17 18 19 20 21 22 23 24 25

Airflow rate (m3/min)

Airflow (m

3

/min)

Fan performance <240V>

Extemal static pressure (Pa)

High(75Pa)

High(60Pa)

High(20Pa)

Low

Low

Upper limit

Upper limit

Correction factor

5

FAN PERFORMANCE AND CORRECTED AIR FLOW

1111

PEAD-RP100GA

Fan performance <220V>

160
150
140

Upper limit

130
120
110
100

90
80
70
60
50
40
30
20
10

Extemal static pressure (Pa)

0

Low

18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34

Airflow rate (m3/min) Airflow rate (m3/min)

Fan performance <240V>

160
150
140

Upper limit

130
120
110
100

90
80
70
60
50
40
30
20
10

Extemal static pressure (Pa)

0

18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34

Low

Airflow rate (m3/min)

High(50Pa)

High(35Pa)

High(5Pa)

High(75Pa)

High(60Pa)

High(20Pa)

Fan performance <230V>

160
150
140

Upper limit

130
120
110
100

90
80
70
60
50
40
30
20
10

Extemal static pressure (Pa)

0

18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34

Low

Corrected air flow

1.1

1.05

Heating capacity

1

0.95

0.9

Correction factor

0.85

0.8
25

26 27 28 29 30 31 32 33 34 35 36 37

Airflow (m

High(10Pa)

Cooling capacity

3

/min)

High(70Pa)

High(50Pa)

12

2. REMOTE CONTROLLER

6

OUTLINES & DIMENSIONS

1. INDOOR UNIT

PEAD-RP60, 71, 100GA

Air outlet

Air outlet

Air inlet

Refrigerant piping flare connection(liquid øH copper tube):HP
Refrigerant piping flare connection(gas øJ copper tube):LP
Electrical parts box
Terminal bed : Power source
Terminal bed : Remote control
Filter
Drain pan (R1 External thread: ø34)(❊;Fixable to opposition side.)

❊NOTE: IT IS NECESSARY TO REMOVE THE CEILING PARTS OR TO KEEP THE MAINTENANCE HOLE OF

OVER UNIT SIZE WHEN YOU HAVE A MAINTENANCE OR SERVICE THE FOLLOWING PARTS.
SERVICE: MOTOR,SIROCCO FAN,HEAT EXCHANGER,DRAIN PAN
(EXCHANGE) FILTER(IN CASE OF INDOOR UNIT HAVE INLET DUCT.)
MAINTENANCE: HEAT EXCHANGER,DRAIN PAN(SURFACE WASHING)
(WASHING) FILTER(IN CASE OF INDOOR UNIT HAVE INLET DUCT.)

Air inlet

In case of rear inlet

In case of bottom inlet

3

64

261

3.5

271.53.5

D

120XE=F

120 86

15

48

Opposition
side❊

7

66

78

A

2XG-ø2.9

2XG-ø2.8

6

7

6 5 4 1 2

Access door

33

260

86.5

120

10010018

236.6

236.614

296

2X3-ø2.9

2X2-ø3

162

130 16

19.5

❊ Service space:550 or more

179

250~350

450

450

39

100~200

86

15

609.6 (Lifting bolt pitch)

75

15

15.5

C(Lifting bolt pitch)

46

20

680

100

D

D

100

30

237

18

120

120XE=F

86

B

15

30

39

120xE=F

15

2

1

3
4
5
6
7

❊ Setting at shipment

J

HGFEDCBAModel

Outdoor unit(MUZ,SUZ);6.35
Other outdoor unit;9.52 ❊

84071012105010901125

RP60

R410A Outdoor unit;15.88 ❊
R407C Outdoor unit;19.05

1365 1330 1290 1252 9 1080

1125 1090 1050 1012 7 840

8

10

8

15.88

15.88

9.52

9.52

RP100

RP71



     









13

7

WIRING DIAGRAM

TO MA-REMOTE
CONTROLLER
DC8.7-13V

TO OUTDOOR UNIT

X6

X5

X4

X1

ZNR

<❊A>

FUSE

N

L

S1
S2

12

21

12

S3

TO CND

TO OUTDOOR
UNIT

TO CN3C

P.B.

I.B.

RELAY(DRAIN PUMP)

X1

CONNECTOR(WIRELESS)

TRANSMISSION(INDOOR. OUTDOOR)

LED3

POWER SUPPLY(REMOTE CONTROLLER)

LED2

LED1

POWER SUPPLY(I.B.)

CN90

CN51

CONNECTOR(CENTRALLY CONTROL)

CN24 CONNECTOR(HEATER)

POWER SUPPLY
~(1PHASE)
230V 50Hz

Capacity cord
switch

Model selection
switch

SW2SW1

VARISTOR

FUSE(T6.3AL250V)

ZNR

FUSE

INDOOR POWER BOARD

P.B.

ON
OFF

12345

ON
OFF

12345

ON
OFF

12345

COND./EVA. TEMP. THERMISTOR
(0

°C/15KΩ,25°C/5.4KΩ DETECT)

PIPE TEMP. THERMISTOR/LIQUID
(0

°C/15KΩ,25°C/5.4KΩ DETECT)

INTAKE AIR TEMP.THERMISTOR
(0

°C/15KΩ,25°C/5.4KΩ DETECT)

TERMINAL BLOCK
(INDOOR/OUTDOOR CONNECTING LINE)

TERMINAL BLOCK(REMOTE CONTROLLER)

FAN MOTOR

CAPACITOR(FAN MOTOR)

TH5

TH2

TH1

TB4

TB5

MF

C

NAMENAME

SYMBOLSYMBOL

NAME

RELAY(FAN MOTOR)

RELAY(FAN MOTOR)

SWITCH(CAPACITY CORD)

CONNECTOR(HA TERMINAL-A)

CONNECTOR(REMOTE SWITCH)

INDOOR CONTROLLER BOARD

RELAY(FAN MOTOR)

SWITCH(EMERGENCY OPERATION)

SWITCH(MODEL SELECTION)

CONNECTOR(LOSSNAY)

X6

X5

X4

SWE

SW2

SW1

CN41

CN32

CN2L

I.B.

SYMBOL

X1

Y
L
W

O
R
N

X6X5X4

2

1

(RED)

(WHT)

(WHT)

(YLW)

(WHT)

(WHT)

(WHT)

B
L
U

B

L

U

B
L
U

B
L
U

(BLK)

(WHT)

(RED)

(BLU)

B
L
K

W
H
T

BLK

WHT

(WHT)

(BLU)

B
R
N

BRN

O
R
N

ORN
YLW

(BLU)(RED)(ORN)

(RED)

(WHT)

B
L
K

W
H

T

B
L
K

W

H
T

(WHT)

(WHT)

O
R
G

B
L
K

B
L
U

B
L
K

Y
L
W

Y
L
W

G
R
Y

??A

54321

OFF

ON

100GA

71GA

60GA

MODELS

*

(FACTORY SHIPMENT)

240V230V220V

20Pa

60Pa

75Pa

10Pa

50Pa

70Pa50Pa

35Pa

5Pa

RED

WHT

BLU

CONNECTOR COLOR

2
1

TB5

TB4

S3

S1

S2

2 1

CNP

1331

31

13

CNSK

2

1

CN2S

643521

MF

C

1

2

CN24

3

21

12

3

1

2

121

2

TH5TH2

TH1

LED1
LED2
LED3

1

2

CN2D

CN3C

31

CND CNDK

137

FAN

5

OFF

ON

SWE

SW2

SW1

CN2L

CN22

CN20 CN21 CN29

CN31

CN90

CN41

CN51

CN32

2

1

123456789

4

321

54321

INSIDE SECTION OF CONTROL BOX

NOTE 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.

4.THE WIRING BETWEEN MA-REMOTE CONTROLLER AND TB5 IS INCLUDED
IN THE PACKAGE.

(IN CASE OF CONNECT
THE REPLACEMENT WIRING)

*External static pressure

PEAD-RP60, 71, 100GA

14

8

REFRIGERANT SYSTEM DIAGRAM

PEAD-RP60, 71, 100GA

Indoor unit

Indoor
heat
exchanger

Thermistor TH5
(Cond./Eva.
temperature)

Strainer

Refrigerant flow in cooling
Refrigerant flow in heating

Refrigerant GAS pipe connection

Thermistor TH1
(Room temperature)

Thermistor TH2
Pipe temperature
(Liquid)

Distributor
with strainer

Refrigerant LIQUID pipe connection

15

9

TROUBLESHOOTING

<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 inferior phenomenon reoccurrence at field are summarized in the table below. Check
the contents below before investigating details.

9-1. TROUBLESHOOTING

Unit conditions at service

Error code

Actions to be taken for service (summary)

The inferior phenomenon is
reoccurring.

Displayed

Not displayed

Judge what is wrong and take a corrective action
according to “SELF-DIAGNOSIS ACTION TABLE” (9-2).

Identify the cause of the inferior phenomenon and take
a corrective action according to “TROUBLESHOOTING
BY INFERIOR PHENOMENA ” (9-3).

The inferior phenomenon is
not reoccurring.

Logged

Not logged

1Consider 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
inferior phenomenon occurred, and wiring related.
2Reset error code logs and restart the unit after finishing
service.
3There is no abnormality in electrical components,
controller boards, and remote controller.

1Recheck the abnormal symptom.
2Identify the cause of the inferior phenomenon and take

a corrective action according to “TROUBLESHOOTING
BY INFERIOR PHENOMENA ” (9-3).
3Continue to operate unit for the time being if the cause
is not ascertained.
4There is no abnormality in electrical components,
controller boards, remote controller etc.

16

9-2. 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

Meaning of error code and detection method

Cause

Countermeasure

P1

Abnormality of room temperature
thermistor (TH1)

1 The unit is in three-minute resume

prevention mode if short/open of
thermistor is detected. Abnormal if the
unit does not reset normally after three
minutes. (The unit returns to normal
operation, if it has normally reset.)

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 9-6.
Tu rn 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.

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

P2

Abnormality of pipe temperature
thermistor/Liquid (TH2)

1 The unit is in three-minute resume

prevention mode if short/open of
thermistor is detected. Abnormal if the
unit does not reset normally after three
minutes. (The unit returns to normal
operation, if it has normally reset.)

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

(CN21) on the indoor controller
board. (Insert failure)

3 Breaking of wire or contact

failure of thermistor wiring.

4 Defective refrigerant circuit is

causing thermistor temperature
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 (CN21) on

the indoor controller board. Refer to 9-6. 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 exclusively 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 exclusive
difference with actual pipe <liquid> temperature,
replace indoor controller board.

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

P4

Abnormality of drain sensor (DS)

1 Suspensive abnormality, if short/open of

thermistor is detected for 30 seconds
continuously.
Tu rn off compressor and indoor fan.

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 9-6. 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.

Tu rn 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. Turn off
compressor and indoor fan.

2 Drain pomp is abnormal if the condition

above is detected during suspensive
abnormality.

3 Constantly detected during drain pomp

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 9-6.

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

17

Error Code

Meaning of error code and detection method

Cause

Countermeasure

P6

Freezing/overheating protection is
working

1 Freezing protection (Cooling mode)

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

-15: for three minutes, three minutes
after the compressor started. Abnormal
if it stays under -15: for three minutes
again within 16 minutes after six-minute
resume prevention mode.
<Frost prevention mode>
If pipe <liquid or condenser-evaporator>
temperature is 2: or below when 16
minutes has passed after compressor
starts operating, unit will start operating
in frost prevention mode which stops
compressor operation. After that, when
pipe <liquid or condenser/evaporator>
temperature stays 10: or more for 3
minutes, frost prevention mode will be
released and compressor will restart its
operation.

2 Overheating protection (Heating mode)

The units is in six-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 10 minutes
after six-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 beyond 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 beyond 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 Measure the resistance of fan motor's winding.

Measure the output voltage of fan's connector
(FAN) on the indoor controller board.
WThe indoor controller board should be

normal when voltage of AC 220~240V is
detected while fan motor is connected.
Refer to 9-6.

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

circuit.

(Heating mode)

1 Check clogs of the filter.
2 Remove shields.

4 Measure the resistance of fan motor's

winding.
Measure the output voltage of fan's connector
(FAN) on the indoor controller board.
WThe indoor controller board should be

normal when voltage of AC 220~240V is
detected while fan motor is connected.
Refer to 9-6.

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

circuit.

Abnormality of pipe temperature

<Cooling mode>
Detected as abnormal when the pipe tem­perature is not in the cooling range 3 min­utes later of compressor start and 6 min­utes later of the liquid or condenser/evapo­rator pipe is out of cooling range.
Note 1) It takes at least 9 min. to detect.
Note 2) Abnormality P8 is not detected in

drying mode.

Cooling range : -3 deg ] (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 deg [ (TH5-TH1)

1~4 Check pipe <liquid or condenser /

evaporator> 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

Meaning of error code and detection method

Cause

Countermeasure

P9

Abnormality of pipe temperature ther­mistor / Condenser-Evaporator (TH5)

1 The unit is in three-minute resume pro-

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

2 Constantly detected during cooling, dry-

ing, and heating operation (except
defrosting)
Short: 90: or more
Open: -40: or less

1 Defective thermistor

characteristics

2 Contact failure of connector

(CN29) 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 (CN29)

on the indoor controller board.
Refer to 9-6.
Tu rn 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
exclusively low (in cooling mode) or high (in
heating mode), refrigerant circuit may have
defective.

5 Operate in test run mode and check pipe

<condenser / evaporator> temperature with
outdoor control circuit board. If there is
exclusive difference with actual pipe
<condenser / evaporator> temperature
replace indoor controller board.
There is no abnormality if none of above
comes within the unit.
Tu rn 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 can not receive normally any
transmission from indoor unit of refriger­ant address “0” for three minutes.
(Error code : E0)

2 Abnormal if sub remote controller could

not receive for any signal for two min­utes. (Error code: E0)

1 Abnormal if indoor controller board can

not receive normally any data from
remote controller board or from other
indoor controller board for three minutes.
(Error code: E4)

2 Indoor controller board cannot receive

any signal from remote controller for two
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 cablex 3 or more)

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

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

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.
Put 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” is displayed,
d) When “ERC 00-06” is displayed,
[ c),d)→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 six
seconds and could not transmit.

(Error code: E3)

2 Remote controller receives transmitted

data at the same time, compares the
data, and when detecting it, judges
different data to be abnormal 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, compares
the data,and when detecting it, judges
different data to be abnormal 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.

Put 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 displayed,

noise may be causing abnormality.

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 Mis-wiring of remote controller.
4 Defective transmitting receiving

circuit of remote controller

5 Defective transmitting receiving

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

6 Noise has entered into the

transmission wire of remote
controller.

1 Tw o remote controller are set

as “main.”

(In case of 2 remote con-

trollers)

2 Remote controller is connected

with two 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 con­troller.

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

(

)

19

E6

1 Contact failure, short circuit or,

mis-wiring (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 cir-

cuit board. (Connect A-control service tool,
PA C-SK52ST.)
Refer to EA-EC item if LED displays EA-EC.

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 Tu rn 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

defective in case of twin triple indoor unit
system.

E7

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 Tu rn 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
six minutes after putting the power on.

2 Abnormal if indoor controller board

cannot receive any signal normally for
three minutes.

3 Consider the unit abnormal under the

following condition: When two or more
indoor units are connected to one
outdoor unit, indoor controller board
cannot receive a signal for three minutes
from outdoor controller circuit board, a
signal which allows outdoor controller
circuit board to transmit signals.

Error Code

Meaning of error code and detection method

Cause

Countermeasure

Fb

Abnormality of indoor controller board

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

1 Defective indoor controller

board.

1 Replace indoor controller board.

E1

or

E2

Abnormality of remote controller control
board

1 Abnormal if data cannot be normally

read from the nonvolatile memory of the
remote controller control board.

(Error code: E1)

2 Abnormal if the clock function of remote

controller cannot be normally operated.

(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.

9-3. 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 (L

3, 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
circuit 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 9-6-1.

• 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

method 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

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 hor-

izontal 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
short-cut 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

9-4. 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;

(1) Indoor fan high speed operation (2) Drain-up machine operation

2. When emergency operating for COOL or HEAT, setting of the switch (SWE) in 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 at most. It may cause heat exchanger frosting in the indoor unit.
(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 manually and slowly.

23

9-5. HOW TO CHECK THE PARTS

PEAD-RP60GA
PEAD-RP71GA
PEAD-RP100GA

Par ts name Check points

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

Measure the resistance between the terminals using a tester (winding temp. 20°C).

(Refer to the thermistor)

Room temperature
thermistor (TH1)

Pipe temperature
thermistor (TH2)

Condenser/Evaporator
temperature thermistor
(TH5)

Fan motor (MF)

Normal

4.3k"~9.6k"

Motor terminal

Orange-Gray

Orange-Black

Black-Blue

Blue-Yellow

Yellow-Red

Orange-Red

Protector

OPEN

CLOSE

RP60,71

145±5°C

94±15°C

RP100

135±5°C

86±15°C

RP60, 71

35.0"

10.3"

5.87"

6.97"

21.4"

-

RP100

35.2"

2.63"

3.00"

7.01"

-

50.7"

Abnormal

Open or short

Normal

Abnormal

Open or short













       

     

 :

 

"



<Thermistor Characteristic graph>

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

Thermistor R

0=15k" ±3%

Fixed number of B=3480k" ±2%

Rt=15exp { 3480( ) }

0: 15k"
10: 9.6k"
20: 6.3k"
25: 5.2k"
30: 4.3k"
40: 3.0k"

Thermistor for
lower temperature

1

273+t

1

273

24

9-6.TEST POINT DIAGRAM

9-6-1. Power board
PEAD-RP60GA
PEAD-RP71GA
PEAD-RP100GA

CNSK
Connect to the indoor controller board
(CNDK)
Between

11

to 33220-240V AC

CN2S
Connect to the indoor controller board (CN2D)
Between

11

to

33

12.6-13.7V DC (Pin11(+))

25

9-6-2. Indoor controller board
PEAD-RP60GA
PEAD-RP71GA
PEAD-RP100GA

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
Tr ansmission
(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
Tr ansmission
(Indoor/outdoor)
(0~24V DC)

}

}

Non polarity

+

–

+

–

CN41
Connector
(HA terminal-A)

26

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

<Settings at time of factory shipment>
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

Factory shipment

Service parts

Indoor controller board type

JP3

12345

ON

OFF

Service board

MODELS

1 2 3 4 5

1 2 3 4 5

PEAD-RP60GA

ON
OFF

PEAD-RP71GA

1 2 3 4 5

ON
OFF

PEAD-RP100GA

ON
OFF

9-7. 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.

27

10

DISASSEMBLY INSTRUCTIONS

Figure1.

1. Removing the fan motor

1. Remove the screws that fix the bottom plate A,

and remove it.

2. Removing the drain pan as follows:
(1) Remove the screws that fix the drain pan.

(2) Slide the drain pan in the direction

1, Figure1

and unhook the drain pan catches.

(3) Slide the drain pan in the direction

2, Figure1

and unhook the 2 catches on the other side of
the drain pipe.

3. Remove the screws that fix the bottom plate assem-

bly, and remove it.

4. Disconnect the fan motor connector from the con-

troller box.

5. Remove the sirocco fan setting screw and the
motor fixture setting screw to remove the motor
fixture.
Remove the other motor fixture as well, and then
remove the fan motor. (Figure 2)

6. Remove the 8 screws that fix fan housing.

 

 
 

    



1

2

 

A

 

 

 


 
 

28

Figure2.

Fan base

Sirocco fan

Motor

Housing

assembly

Piece

Bush

Piece

Motor base

Leg

Bush

Sirocco fan

Housing assembly

29

11

PARTS LIST

PEAD-RP60GA
PEAD-RP71GA
PEAD-RP100GA

EXTERNAL PARTS

10.11

1.2

8.9

3.4

5.6.7

Part No. Part Name Drawing No.

No.

1

S70 071 669

2

S70 072 669

S70 061 669

3

4

S70 062 669

5

S70 K01 480

S70 K02 480

6

7

S70 K03 480

8

S70 061 529

9

S70 071 529

10

S70 061 500

11

S70 071 500

Bottom plate 1 ass’y

H.EX. General ass’y

Filter

W652372Z05Bottom plate 2

W652372Z07Bottom plate 2

W902770G01

W902770G02Bottom plate 1 ass’y

W274422G06H.EX. General ass’y

W274422G04

W274422G05H.EX. General ass’y

W906341G01Drain pan ass’y

W906341G02Drain pan ass’y

W652374G04

W652374G03Filter

PEAD-

RP60GA

1

1

1

1

1

Qt’y/set

PEAD-

RP71GA

1

1

1

1

1

PEAD-

RP100GA

1

1

1

1

1

Spec.

30

PEAD-RP60GA
PEAD-RP71GA
PEAD-RP100GA

7

8

2

1

2

1.16

5.6

5.6

9.10

11.12

17.18

8

7

3.4

13.14.15

No.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

Part No. Part Name Drawing No.

Qt’y/set

R02F328H09 2

2

22

2

2

2

2

2

2

22

11

1

1

1

1

2

1

11

1

1

1

11

1

R02F328G84

W491760H02

W126471G01

W903428G02

P714913X01

P412291X01

R02G131H07

P412292X01

W353715H01

W634069Z02

W902771Z03

with a nut

Piece

Piece

Bush

W902772G08Fan base ass’y

W902772G07Fan base ass’y

Sirocco fan

Housing ass’y

Motor

Leg

Capacitor 6

W241060H03Motor support

P714914X01Motor

Capacitor 8

Attachment

Motor base

Motor base

P412209X01Capacitor 4

R31F676H01

S70 507 131

S70 507 132

S70 768 105

S70 Y05 114

S70 980 110

S70 Y02 220

S70 510 255

S70 883 130

S70 610 255

S70 652 131

S70 090 130

S70 031 130

S70 710 677

S70 610 677

S70 090 130

S70 Y03 220

S70 710 255

S70 755 105 Bush

PEAD-

RP60GA

PEAD-

RP71GA

PEAD-

RP100GA

31

PEAD-RP60GA
PEAD-RP71GA
PEAD-RP100GA

CONTROL BOX PARTS

4

7

5

3

6

Earth post

2

1

Part No. Part Name Drawing No.

No.

1

S70 979 717

S70 435 717

2

S70 K06 313

3

4

S70 KW3 202

5

S70 KW2 202

6

S70 KW1 202

7

S70 K70 310

8

9

10

Terminal bed

Terminal bed

Power Board

Thermistor

Thermistor

Thermistor

Controller Board

P436110X01

BA73S950H02

RG00B435F08

W905588G01

W906303G02

W906303G01

RG00D008B02

PEAD-

RP60GA

1

1

Qt’y/set

PEAD-

RP71GA

PEAD-

RP100GA

111

111

111

111

111

11

11

Spec.

< TB4 >

< TB5 >

PWB

<TH1> RED

< TH2 > WHITE

<

TH5 > BLACK

I.B

32

PEAD-RP60GA
PEAD-RP71GA
PEAD-RP100GA

ELECTRICAL PARTS

1

TEMP.

ON/OFF

No. Part No. Part Name Drawing No.

1

2

S70 030 305

Remote controllerS70 KW1 713

Remote controller cable

P972122X01

W873334G05

Qt’y/set

PEAD-

PEAD-

PEAD-

RP100GA

RP71GA

RP60GA

111

111

Spec.

MA Remo-con

10 m

33

1. REMOTE SENSOR

2. REMOTE OPERATION ADAPTER

3. REMOTE ON/OFF ADAPTER

4. INSULATION KIT

12

OPTIONAL PARTS

Part No. PAC-SE41TS-E

PEAD-RP60,71,100GAApplied model

Part No. PAC-SF40RM-E

PEAD-RP60,71,100GAApplied model

Part No. PAC-SE55RA-E

PEAD-RP60,71,100GAApplied model

Part No. PAC-SK010DK

PEAD-RP60,71,100GAApplied model

HWE05060
Issued in Aug. 2005
Printed in Japan

New publication, effective Aug. 2005.
Specifications subject to change without notice.

TM

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