Mitsubishi PLH–P·KAH, PLA–P·KA, PCH–P·GAH, PCA–P·GA, PKH–P·GALH SERVICE MANUAL

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

SERVICE TECHNICAL GUIDE

No. OCT03

REVISED EDITION-C

R407C

<Indoor unit>
[Model names]

PLH–P·KAH
PLA–P·KA
PCH–P·GAH
PCA–P·GA
PKH–P·GALH
PKA–P·GAL
PKH–P·FALH
PKH–P·FAL
PSH–P·GAH
PSA–P·GA
PMH–P·BA
PLH–P·AAH
PLA–P·AA
PLH–P·KAH
PLA–P·KA
PEHD–P·EAH
PEAD–P·EA

<Outdoor unit>
[Model names]

PUH–P·GA
PU–P·GA
PUH–P·GAA
PU–P·GAA

[Service Ref]

PLH–P·KAH
PLA–P·KA PLA–P·KA

1

PCH–P·GAH PCH–P·GAH1
PCA–P·GA PCA–P·GA1
PKH–P·GALH PKH–P·GALH1
PKA–P·GAL PKA–P·GAL1
PKH–P·FALH PKH–P·FALH1 PKH–P·FALH2
PKA–P·FAL PKA–P·FAL1 PKA–P·FAL2
PSH–P·GAH PSH–P·GAH1
PSA–P·GA PSA–P·GA1
PMH–P·BA PMH–P·BA1 PMH–P·BA2
PLH–P·AAH.UK PLH–P·AAH1.UK
PLA–P·AA(.UK) PLA–P·AA
PLH–P·KAH.UK PLH–P·KAH
PLA–P·KA.UK PLA–P·KA

1.UK

1.UK

1.UK

PEHD–P·EAH.UK
PEAD–P·EA.UK

[Service Ref]

PUH-P·GA PUH-P·GA1

PU-P·GA PU-P·GA1

PUH-P·GAA(.UK) PUH-P·GAA1.UK
PU-P·GAA(.UK) PU-P·GAA

1.UK

Revision:

●PLA-P·KA1, PCH-P·GAH1, PCA-P·GA1,
PKH-P·GALH
PKH-P·FALH2, PKA-P·FAL1, PKA-P·FAL2,
PSH-P·GAH1, PSA-P·GA1,
PMH-P·BA, PMH-P·BA1, PMH-P·BA2,
PLH-P·AAH.UK, PLH-P·AAH1.UK,
PLA-P·AA(.UK), PLA-P·AA1.UK,
PLH-P·KAH.UK, PLH-P·KAH1.UK,
PLA-P·KA.UK, PLA-P·KA1.UK,
PEHD-P·EAH.UK, PEAD-P·EA.UK,
PUH-P·GA, PUH-P·GA1, PU-P·GA, PU-P·GA1,
PUH-P·GAA(.UK), PUH-P·GAA1.UK,
PU-P·GAA(.UK) and PU-P·GAA1.UK
are added in REVISED EDITION-C.

●Please void OCT03 Revised Edition-B.

1, PKA-P·GAL1, PKH-P·FALH1,

CONTENTS

1. PAIRING TABLE OF THE INDOOR AND OUTDOOR UNIT·····2

2. SPECIFICATIONS FOR ELECTRICAL WORK ·························4

3. WIRING DIAGRAM·····································································6

4. REFRIGERANT SYSTEM DIAGRAM ······································27

5. HOW TO CHECK THE PARTS ················································32

6. MICROPROCESSOR CONTROL·············································45

7. INDOOR UNIT CONTROL························································52

8. OUTDOOR UNIT CONTROL····················································59

9. DIP SWITCH FUNCTION ·························································65

10. FUNCTION SETTING ·······························································76

11. TEST RUN & EMERGENCY OPERATION·······························89

12. SELF-DIAGNOSIS····································································95

13. TEST POINT DIAGRAM·························································115

14. TROUBLESHOOTING····························································121

15. SYSTEM CONTROL·······························································124

1

PLH–P·KAH
PLA–P·KA
PCH–P·GAH
PCA–P·GA
PKH–P·GALH
PKA–P·GAL
PKH–P·FALH

1

PKA–P·FAL1
PSH–P·GAH
PSA–P·GA

PMH–P·BA

PLH–P·AAH.UK

PLA–P·AA.UK

PLH–P·KAH.UK

PLA–P·KA.UK

OC181

REVISED EDITION-A

OC182

REVISED EDITION-B

OC176

REVISED EDITION-B

OC175

REVISED EDITION-B

OC212

REVISED EDITION-A

OC238

REVISED EDITION-B

OC236

REVISED EDITION-A

OC241

REVISED EDITION-A

OC235

REVISED EDITION-A

OC240

REVISED EDITION-A

P1.6GA

—

—

—

—

Indoor unit

Outdoor unit [PUH/PU]

OC180 Rev-A

P2GA

—

—

—

P2.5GA

—

—

—

—

P3GA

—

—

—

P4GA

—

—

—

P5GA

—

—

—

—

P6GA

—

—

—

—

PAIRING TABLE OF THE INDOOR AND OUTDOOR UNITS

2

Indoor unit

Service ref.

PCH–P·GAH1
PCA–P·GA1
PKH–P·GALH1
PKA–P·GAL1
PKH–P·FALH2
PKA–P·FAL2
PSH–P·GAH1
PSA–P·GA1

PMH–P·BA1

PLH–P·AAH1.UK

PLA–P·AA1.UK

PLH–P·KAH1.UK

PLA–P·KA1.UK

PEHD–P
PEAD–P

·EAH.UK

·EA.UK

P1GAA.UK

OC182

REVISED EDITION-B

OC176

REVISED EDITION-B

OC175

REVISED EDITION-B

OC212

REVISED EDITION-A

OC238

REVISED EDITION-B

OC236

REVISED EDITION-A

OC241

REVISED EDITION-A

OC235

REVISED EDITION-A

OC240

REVISED EDITION-A

MEE01K

048

—

—

—

—

—

—

—

P1.6GAA.UK

—

—

—

—

P2GAA.UK

—

—

—

Outdoor unit [PUH/PU]

OC261

P2.5GAA.UK

—

—

—

—

P3GAA.UK

—

—

—

P4GAA.UK

—

—

—

P5GAA.UK

—

—

—

—

P6GAA.UK

—

—

—

—

3

2

A

J J

D

E

G

L L

C

K K

B

F

I I

H

F

I

E

A

J J

D

E

G

L L

C

K K

B

F

I I

H

F

I

E

J

L

K

F

I

E

A

J J

D

E

G

L L

C

K K

B

F

I I

H

F

I

E

J

L

K

F

I

E

J

L

K

F

I

E

SPECIFICATIONS FOR ELECTRICAL WORK

2-1. Electrical check

1) Simultaneous twin system

2) Simultaneous triple system

A Power supply for outdoor unit
B Main switch/fuse(purchased locally)for

outdoor unit

C Power supply wiring for outdoor unit
D Outdoor unit
E Indoor unit
F Connection wiring for indoor/outdoor

units(polarity)

G Remote controller
H Connection wiring for indoor/remote

controller(no polarity)

I Grounding
J,K,L:with electric heater model only

J Power supply for electric heater
K Main switch/fuse for electric heater
L Power supply wiring for electric heater

..

Caution:
Both the indoor unit and the outdoor unit
must be grounded.

3) Simultaneous quadruple system

4

2-2. Field electrical wiring(power wiring specifications)

Heater
Power supply
Outdoor unit
Power supply

Phase
Frequency & Voltage
Indoor unit (A)
Outdoor unit (A)
Wire No.
Size (e)
Wire No.
Size (e)

16/16
32/32

3

1.5
3
4

16/16
63/63

3

1.5
3

10

16/16
25/16

3

1.5
5

2.5

16/16
32/25

3

1.5
5

2.5

16/16
32/32

3

1.5
5
4

Models (Outdoor unit)

~ / N (Single)

50Hz, 220-230-240V

Outdoor unit
Power supply
Input capacity
Main switch/Fuse

Indoor unit/Outdoor unit connecting
Wire No. o size (e)
Remote controller-indoor unit connecting
Wire No. o size (e)

indoor unit power supply

~ / N (Single), 50Hz, 220-230-240V

Control circuit rating

Heater power supply

Wiring

3N ~ (3ph)

50Hz, 380/220-400/230-415/240V

3 o 2.5 flat cable (Polar)

Cable 2C o 0.69

This wire is accessory of remote controller (Wire length: 10m,Non-polar)

Indoor unit-Outdoor unit: S1-S2 AC220V-230V-240V

S2-S3 DC24V

Remote controller-Indoor unit: DC14V

~ / N (Single phase), 50Hz, 220-230-240V

P1.6, 2, 2.5V P1.6, 2, 2.5Y P3, 4Y P5, 6YP3V

Heater
Power supply
Outdoor unit
Power supply

Phase
Frequency & Voltage
Indoor unit(A)
Outdoor unit(A)
Wire No.
Size(e)
Wire No.
Size(e)

—

25/25

—
—

3

2.5

16/16
32/32

3

1.5
3
4

16/16
63/63

3

1.5
3

10

16/16
25/25

3

1.5
5

2.5

16/16
32/32

3

1.5
5
4

Models (Outdoor unit)

~ / N (Single)

50Hz, 220-230-240V

Outdoor unit
Power supply
Input capacity
Main switch/Fuse

Indoor unit/Outdoor unit connecting
Wire No. o size (e)
Remote controller-indoor unit connecting
Wire No. o size (e)

Indoor unit power supply

~ / N (Single), 50Hz, 220-230-240V

Control circuit rating

Heater power supply

Wiring

3N ~ (3ph)

50Hz, 380/220-400/230-415/240V

3 o 2.5 cable (Polar)

Cable 2C o 0.69

This wire is accessory of remote controller (Wire length: 10m, Non-polar)

Indoor unit-Outdoor unit: S1-S2 AC220V-230V-240V

S2-S3 DC24V

Remote controller-Indoor unit: DC14V

P1V

—

~ / N (Single phase), 50Hz, 220-230-240V

P3, 4V P1.6, 2, 2.5, 3, 4Y P5, 6YP1.6, 2, 2.5V

PU(H)-P•GA, PU(H)-P•GA1

Check items

1. Grounding protection with a no-fuse breaker (earth leakage breaker[ELB]) is usually installed for B and K.

2. The power cable thickness of C and B have been selected for a voltage drop up to 20m.If the cable length exceeds
20m,select a cable thickness appropriate to that estimated voltage drop.

3. The connection wiring F between the outdoor and indoor units can be extended up to a maximum of 50 meters,and the
total extension including the crossover wiring between rooms is a maximum of 80m.
Use flat cable (three core wires) for indoor and outdoor connection wiring,and connect the core wires in their line-up order
to S1,S2,and S3 of the outdoor unit’s terminal board.(The core wire connected to terminal S2 should be in the center.)

4. Be careful about choosing the installation location for the earth leakage breaker and how it is installed as the initial electric
current may cause it to malfunction.

PU(H)-P•GAA.UK, PU(H)-P•GAA1.UK

Check items

1. The power cable thickness have been selected for a voltage drop up to 20 m. If the cable length exceeds 20 m, select a

cable thickess appropriate to tthat estimated voltage drop.

2. Be careful about choosing the installation location for the earth leakage breaker and how it is installed as the initial electric

current may cause it to maifunction.

3. Power supply cords and indoor unit / Outdoor unit connecting cords shall not be llghter than polychloroprene sheathed flex­ible cord. (design 254 IEC 57)

..

Caution:

Do not push the contactor button (52C) on the outdoor unit ,otherwise the compressor may be damaged.

5

3 WIRING DIAGRAM

9

W.B

GRY

5

6

88H

26H

1

6

2

HEATER
CN24
(YLW)

1

WHT
WHT

YLW

YLW

1

2

REMOTE
CONTROLLER
CN22 (BLU)

2

1

VANE
POSITION
CN23 (GRN)

FS2

FS1

5

TB2

88H

N

L

POWER SUPPLY
~(1PHASE)

220V-240V 50Hz

BLU

RED

3

WHT

RED

RED

1
2

H1

GRN/YLW

1

2

3

CONTROLLER BOARD
CN02 (WHT)

R.B

OUTDOOR UNIT

CN01 (BLU)

3

1
2

D.U.M

CNP
(BLU)

D.SENSOR

CN31

(WHT)

X4

X3

X1

X4

REMOTE
CONTROLLER

RU

FAN

(WHT)

CN90

(WHT)

WIRELESS

W.R

CNB

SW1

SW2

LED1

BZ

J15

BLK

BLK

BLK

BLK

BLK

BLK

BRN

YLW
ORN

WHT

BLK

BRN

ORN

YLW

BLU

BLU

GRY

GRY

YLW

YLW

BLK

WHT

RED

PIPE
CN29
(BLK)

2

1

1
2

TH5

GRILLE

4

8
9

6

1

10

5

3

7

2

S1

S3

S2

TB1

L3

L1
L2

N

S1

S3

S2

TB1

L
N

X1

C

MF

3

1

2

5

3

OUTDOOR UNIT

S1
S2
S3

TB4

P.B

ZNR

2

1

F1

2

CN2

1
TB6

LS

H2

MV

DC14V

1

2

TB5

2
1

CN2S(WHT)

CN32

CN2L

1

2

POWER
CN2D (WHT)

LIQUID
CN21

(WHT)

2

1

INTAKE

CN20

(RED)

2

1

1

2

3

SW2

J22

J23

J24

VANE
CNV
(GRN)

X3

SW1

J11

J12

J13

3

1

3

1

J14

3

1

LED1

LED2

1

D.HEATER

CNC

(RED)

LED3

CN41

3

5

POWER

CN03
(RED)

DP

1

FC

I.B

SWE

ON

OFF

J21

TH2

2

DS

3

1

1

TH1

CN25

TRANSMISSION WIRES DC14V

PLH-P1.6~2.5KAH
only

PLH-P1.6~2.5KAH only

<PUH-P1.6~2.5YGA>
POWER SUPPLY
3N~(3PHASE 4WIRES)
380-415V 50Hz

<PU(H)-P1.6~2.5VGA>
POWER SUPPLY
~(1PHASE)
220-240V 50Hz

BLU

BLU

BLU

BLU

SW1

SW2

Manufacture

service board

MODELS

OFF

ON

432

J14J13J12J11

Service board

Manufacture

MODELS

15

OFF

ON

43215

J15

J14J13J12J11 J15

J23J24

1234

ON
OFF

1234

ON
OFF

J23J24

J22J21

J21J22

PLH-1.6~2.5KAH

PLH-1.6KAH
PLA-1.6KA

PLH-2KAH
PLA-2KA

PLH-2.5KAH
PLA-2.5KA

PLA-1.6~2.5KA

1234

ON
OFF

J23J24J21J22

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

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

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

4.Symbols used in wiring diagram above are,

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

:Connector, :Terminal block.

NOTES:

NAME

NAME

SYMBOL

INDOOR CONTROLLER BOARD

NAME

SYMBOL

INDOOR POWER BOARD

VARISTOR

FUSE (4A)

[LEGEND]

F1

REMOTE CONTROLLER BOARD
CONNECTOR (SCHEDULE TIMER)

R.B

CN2

ZNR

P.B

CONNECTOR (REMOTE SWITCH)

CONNECTOR (LOSSNAY)

CN2L

CN32
CN41

CONNECTOR (HA TERMINAL-A)

LED1
LED2

POWER SUPPLY (R.B)

LED3

TRANSMISSION (INDOOR-OUTDOOR)
JUMPER WIRE (MODEL SELECTION)

SW1

JUMPER WIRE (CAPACITY CODE)

SW2

SWITCH (EMERGENCY OPERATION)

SWE

I.B

POWER SUPPLY (I.B)

CONNECTOR (HUMIDIFIER)

CN25

FC

FAN PHASE CONTROL

X1

RELAY (DRAIN PUMP/D.HEATER)

X3

RELAY (VANE MOTOR)

X4

RELAY (FAN MOTOR)

TERMINAL BLOCK

TB6

(REMOTE CONTROLLER TRAMSMISSION LINE)

W.B

BZ

RU

BOARD (OPTION)
RECEIVING UNIT
BUZZER

SW1

LED1

SWITCH (HEATING ON/OFF)

LED (RUN INDICATOR)

SW2

SWITCH (COOLING ON/OFF)

WIRELESS REMOTE CONTROLLER

W.R

WIRELESS REMOTE CONTROLLER
(OPTION)

SYMBOL

DRAIN-UP MACHINE
DRAIN SENSOR
DEW PREVENTION HEATER

CAPACITOR (FAN MOTOR)

DP

H2

C

DS

ROOM TEMPERATURE THERMISTOR

TERMINAL BLOCK

FAN MOTOR

TERMINAL BLOCK
(REMOTE CONTROLLER TRANSMISSION LINE)

LIMIT SWITCH

VANE MOTOR

(0;/15K', 25;/5.4K' DETECT)

TERMINAL BLOCK (HEATER)

(INDOOR/OUTDOOR CONNECTING LINE)

LS
MF

TB2

MV

TB5

TB4

TH1

HEATER CONTACTOR

HEATER THERMAL SWITCH

HEATER

THERMAL FUSE (98;, 10A),(77;,10A)

CONDENSER/EVAPORATOR TEMPERATURE
THERMISTOR (0;/15K', 25;/5.4K' DETECT)

PIPE TEMPERATURE THERMISTOR/LIQUID
(0;/15K', 25;/5.4K' DETECT)

88H

26H

H1

FS1,2

HEATER

TH2

TH5

PLH-P1.6KAH, PLH-P2KAH, PLH-P2.5KAH
PLA-P1.6KA, PLA-P2KA, PLA-P2.5KA
PLA-P1.6KA1, PLA-P2KA1, PLA-P2.5KA1

6

PLH-P3KAH, PLH-P4KAH
PLA-P3KA, PLA-P4KA

MF

3

12

C

BLK

WHT

W.B

CNB

BZ

RU

SW2

SW1

LED1

9

REMOTE

W.R

CONTROLLER

I.B

FAN

(WHT)

CN90

(WHT)

FC

WIRELESS

SWE

ON

OFF

1

RED

J21

35

SW2

J22

J23

J24

VANE
CNV

(GRN)

J11

J12

SW1

J13

MV

1

DS

TB1

OUTDOOR UNIT

S1
S2

YLW

1

ORN

2

BRN

3

RED

1
2

PLH-P3, 4KAH

TB4

88H

5

GRN/YLW

S3

S1
S2
S3

only

GRILLE

LS

H2

16

10

DP

2

1

GRY

GRY

3

1

D.HEATER
CNC (RED)

X1

X1

LED3

D.SENSOR

CN31

(WHT)

2

1

BLK

TH1

TH2

3

5

INTAKE

BLK

LED2

CN20
(RED)

12

1

BLU

BLU

3

LED1

LIQUID
CN21

(WHT)

BRN

ORN

YLW

513

POWER
CN03
(RED)

2

1

BLK

BLK

2

1

TH5

72

YLW

YLW

D.U.M

3

CNP
(BLU)

X3

X3

J14

J15

1
3

CONTROLLER BOARD

CN02 (WHT)

WHT

BLK

2

1

POWER
CN2D
(WHT)

CN41

CN25

HEATER

PIPE

CN24

CN29

(YLW)

(BLK)

2

1

BLK

BLK

12

CN2S(WHT)

2

DC14V

1
3

2
1

1

VANE
POSITION
CN23 (GRN)

CN2L

CN32

CONTROLLER

CN22 (BLU)

21

YLW

YLW

1

88H

WHT

BLK

2

REMOTE

2

1

BRN

BRN

6

OUTDOOR UNIT

PLH-P3, 4KAH

6

GRY

5

P.B

F1

ZNR

CN01 (BLU)

H1

FS2

FS1

RED
WHT

only

TB5

TRANSMISSION WIRES

2

DC14V

1

26H

WHT
WHT

L1
L2
L3
N

<PU(H)-P3,4YGA>

POWER SUPPLY
3N~

(3PHASE 4WIRES)

380-415V 50Hz

TB1

<PU(H)-P3VGA>

POWER SUPPLY

S1

~(1PHASE)

S2

220-240V 50Hz

S3

L
N

TB2

3

RED

L

BLU

N

POWER SUPPLY
~(1PHASE)
220V-240V 50Hz

1
TB6

R.B

2

CN2

MODELS

PLH-3, 4KAH

PLA-3, 4KA

SW1

Manufacture

J14J13J12J11

J15

J14J13J12J11 J15

Service board

432

15

ON

OFF

43215

ON

OFF

MODELS

PLH-3KAH
PLA-3KA

PLH-4KAH
PLA-4KA

SW2

Manufacture

J23J24

J22J21

J23J24

J21J22

service board

1234

ON
OFF

1234

ON
OFF

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

NOTES:

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

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

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

4.Symbols used in wiring diagram above are,

[LEGEND]

SYMBOL

P.B

INDOOR POWER BOARD

F1

FUSE (4A)

ZNR

VARISTOR

R.B

REMOTE CONTROLLER BOARD

CN2

CONNECTOR (SCHEDULE TIMER)

TB6

TERMINAL BLOCK
(REMOTE CONTROLLER TRAMSMISSION LINE)

W.B

WIRELESS REMOTE CONTROLLER

BOARD (OPTION)

RU

RECEIVING UNIT

BZ

BUZZER

LED1

LED (RUN INDICATOR)

SW1

SWITCH (HEATING ON/OFF)

SW2

SWITCH (COOLING ON/OFF)

W.R

WIRELESS REMOTE CONTROLLER
(OPTION)

NAME

SYMBOL

INDOOR CONTROLLER BOARD

I.B

CONNECTOR (LOSSNAY)

CN2L

CONNECTOR (HUMIDIFIER)

CN25

CONNECTOR (REMOTE SWITCH)

CN32

CONNECTOR (HA TERMINAL-A)

CN41

FAN PHASE CONTROL

FC

POWER SUPPLY (I.B)

LED1

POWER SUPPLY (R.B)

LED2

TRANSMISSION (INDOOR-OUTDOOR)

LED3

JUMPER WIRE (MODEL SELECTION)

SW1

JUMPER WIRE (CAPACITY CODE)

SW2

SWITCH (EMERGENCY OPERATION)

SWE

RELAY (DRAIN PUMP/D.HEATER)

X1

RELAY (VANE MOTOR)

X3

CAPACITOR (FAN MOTOR)

C

DRAIN-UP MACHINE

DP

DRAIN SENSOR

DS

DEW PREVENTION HEATER

H2

:Connector, :Terminal (block).

NAME

SYMBOL

LIMIT SWITCH

LS

FAN MOTOR

MF

VANE MOTOR

MV

TERMINAL BLOCK (HEATER)

TB2

TERMINAL BLOCK

TB4

(INDOOR/OUTDOOR CONNECTING LINE)
TERMINAL BLOCK

TB5

(REMOTE CONTROLLER TRANSMISSION LINE)
ROOM TEMPERATURE THERMISTOR

TH1

(0;/15K', 25;/5.4K' DETECT)
PIPE TEMPERATURE THERMISTOR/LIQUID

TH2

(0;/15K', 25;/5.4K' DETECT)

TH5

CONDENSER/EVAPORATOR TEMPERATURE
THERMISTOR (0;/15K', 25;/5.4K' DETECT)

HEATER

THERMAL FUSE (77;,15A)

FS1,2

HEATER

H1

HEATER THERMAL SWITCH

26H

HEATER CONTACTOR

88H

NAME

7

PLH-P5KAH, PLH-P6KAH
PLA-P5KA, PLA-P6KA

W.B

BZ

CNB

SW2

SW1LED1

9

REMOTE

W.R

CONTROLLER

MODELS

PLH-5, 6KAH

PLA-5, 6KA

I.B

FAN
(WHT)

RU

CN90
(WHT)

WIRELESS

SWE
ON
OFF

SW1

Manufacture

1

FC

J14J13J12J11

J15

J14J13J12J11 J15

MF

C

RED

J21

21

SW2

J22

WHT

3

J23

Service board

LS

MV

YLW

YLW

BLK

VANE
CNV
(GRN)

J24

15

31

X3

SW1

J11

J15

J12

J13

J14

DS

432

43215

OFF

OFF

D.U.M
CNP
(BLU)

X3

ON

ON

GRILLE

H2

10

527

DP

21

GRY

GRY

3531

D.HEATER
CNC (RED)

X1

X1

D.SENSOR
CN31
(WHT)

3

BLK

BLK

1
3

TH1
TH2

MODELS

PLH-5KAH
PLA-5KA

PLH-6KAH
PLA-6KA

6

1

BLU

313151

LED1LED2LED3

INTAKE
CN20
(RED)

Manufacture

J21J22

BLU

LIQUID
CN21
(WHT)

12

BLK

12

SW2

J22J21

YLW

BLK

TH5

J23J24

J23J24

BRN

ORN

POWER
CN03
(RED)

CN2S(WHT)

2
1

3
2
1

CONTROLLER BOARD
CN02 (WHT)

WHT

BLK

2

POWER
CN2D
(WHT)

CN2LCN41

CN32

CN25

PIPE

HEATER

CN29

CN24

(BLK)

(YLW)

12

2121

BLK

BLK

YLW

21

service board

1234

1234

DC14V

WHT

BLK

2

1

VANE
POSITION
CN23 (GRN)

REMOTE
CONTROLLER
CN22 (BLU)

1212

YLW

BRN

BRN

61

88H

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

ON

OFF

ON

OFF

F1

ZNR

OUTDOOR UNIT
CN01 (BLU)

FS2

FS1

RED
WHT

TB5

2

TRANSMISSION WIRES

1

26H

WHT

6

WHTGRY

5

P.B

YLW

1

ORN

2

BRN

3

H1

RED

1
2

PLH-P5, 6KAH

TB4

88H

5

only

S1
S2
S3

3

RED

GRN/YLW

DC14V

BLU

TB2

TB1

L1

S1
S2

L2

S3

L3
N

L
N

CN2

NOTES:

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

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

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

4.Symbols used in wiring diagram above are,

[LEGEND]

SYMBOL

P.B

INDOOR POWER BOARD

F1

FUSE (4A)

ZNR

VARISTOR

R.B

REMOTE CONTROLLER BOARD

CN2

CONNECTOR (SCHEDULE TIMER)

TB6

TERMINAL BLOCK
(REMOTE CONTROLLER TRAMSMISSION LINE)

W.B

WIRELESS REMOTE CONTROLLER
BOARD (OPTION)

RU

RECEIVING UNIT

BZ

BUZZER

LED1

LED (RUN INDICATOR)

SW1

SWITCH (HEATING ON/OFF)

SW2

SWITCH (COOLING ON/OFF)

W.R

WIRELESS REMOTE CONTROLLER
(OPTION)

NAME

SYMBOL

INDOOR CONTROLLER BOARD

I.B

CONNECTOR (LOSSNAY)

CN2L

CONNECTOR (HUMIDIFIER)

CN25

CONNECTOR (REMOTE SWITCH)

CN32

CONNECTOR (HA TERMINAL-A)

CN41

FAN PHASE CONTROL

FC

POWER SUPPLY (I.B)

LED1

POWER SUPPLY (R.B)

LED2

TRANSMISSION (INDOOR-OUTDOOR)

LED3

JUMPER WIRE (MODEL SELECTION)

SW1

JUMPER WIRE (CAPACITY CODE)

SW2

SWITCH (EMERGENCY OPERATION)

SWE

RELAY (DRAIN PUMP/D.HEATER)

X1

RELAY (VANE MOTOR)

X3

CAPACITOR (FAN MOTOR)

C

DRAIN-UP MACHINE

DP

DRAIN SENSOR

DS

DEW PREVENTION HEATER

H2

:Connector, :Terminal (block).

NAME

SYMBOL

LIMIT SWITCH

LS

FAN MOTOR

MF

VANE MOTOR

MV

TERMINAL BLOCK (HEATER)

TB2

TERMINAL BLOCK

TB4

(INDOOR/OUTDOOR CONNECTING LINE)
TERMINAL BLOCK

TB5

(REMOTE CONTROLLER TRANSMISSION LINE)
ROOM TEMPERATURE THERMISTOR

TH1

(0;/15K', 25;/5.4K' DETECT)
PIPE TEMPERATURE THERMISTOR/LIQUID

TH2

(0;/15K', 25;/5.4K' DETECT)

TH5

CONDENSER/EVAPORATOR TEMPERATURE
THERMISTOR (0;/15K', 25;/5.4K' DETECT)

HEATER

THERMAL FUSE (77;,15A)

FS1,2

HEATER

H1

HEATER THERMAL SWITCH

26H

HEATER CONTACTOR

88H

NAME

OUTDOOR UNIT

<PU(H)-P5, 6YGA>
POWER SUPPLY
3N~
(3PHASE 4WIRES)
380-415V 50Hz

POWER SUPPLY
~(1PHASE)
220V-240V 50Hz

R.B

12
TB6

PLH-P5, 6KAH

only

8

PCH-P2GAH, PCH-P2.5GAH, PCH-P3GAH, PCH-P4GAH, PCH-P5GAH, PCH-P6GAH
PCH-P2GAH1, PCH-P2.5GAH1, PCH-P3GAH1, PCH-P4GAH1,PCH-P5GAH1, PCH-P6GAH1
PCA-P2GA, PCA-P2.5GA, PCA-P3GA, PCA-P4GA, PCA-P5GA, PCA-P6GA
PCA-P2GA

1, PCA-P2.5GA1, PCA-P3GA1, PCA-P4GA1, PCA-P5GA1, PCA-P6GA1

INDOOR POWER BOARD

P.B

FUSE(4A)

F1

VARISTOR

ZNR

INDOOR CONTROLLER BOARD

I.B

CONNECTOR(LOSSNAY)

CN2L

CONNECTOR(REMOTE SWITCH)

CN32

CONNECTOR(HA TERMINAL-A)

CN41

JUMPER WIRE(MODEL SELECTION)

SW1

JUMPER WIRE(CAPACITY CODE)

SW2

SWITCH(EMERGENCY OPERATION)

SWE

RELAY(DRAIN PUMP)

X1

RELAY(FAN MOTOR)

X4

FAN PHASE CONTROL

FC

POWER SUPPLY(I.B)

LED1

POWER SUPPLY(R.B)

LED2

TRANSMISSION(INDOOR-OUTDOOR)LED3
CAPACITOR(FAN MOTOR)C
FAN MOTORMF

INDOOR UNIT

MF

123

C

I.B

FAN
(WHT)

RED
1

FC

SWE SW1SW2

ON

J21

J22

J23

OFF

When installing drain-up
machine(Optional part).

J24

CN31 DRAIN SENSOR

(WHT)

312

DS

MODELS

P2

<For manufacture>

P2.5

P3

P4

<For service board>

P5

P6

(OPTION)

DP

WHT

BLK

D.U.M

35

CNP
(BLU)

X4

X4

J14

J13

J12

J11

J15

wWhen installing optional
drain-up machine,disconnect
the CN31 jumper connector
and replace it with the
drain sensor(DS).

SW1

J15J14J13J12J11

54321

ON
OFF

1

X1

X1

D.SENSOR
CN31
(WHT)

Manufacture

J22J23

J21

J22

J23

J21

J22

J23

J21

J22

J23

J21

J22

J23

J21

J21

J22

J23

3

LED3 LED2 LED1

J24

J24

J24

J24

J24

J24

POWER

321

SW2

Service board

1

1

1

1

1

VANE MOTORMV
DRAIN-UP MACHINE(OPTION)

DP

DRAIN SENSOR(OPTION)DS

TB2

TERMINAL BLOCK(HEATER)
TERMINAL BLOCK(INDOOR/OUTDOOR CONNECTING LINE)

TB4

TERMINAL BLOCK(REMOTE CONTROLLERTB5
TRANSMISSION LINE)

TH1 ROOM TEMPERATURE THERMISTOR

(0;/15k' ,25;/5.4k' DETECT)
PIPE TEMPERATURE THERMISTOR/LIQUID

TH2

(0;/15k', 25;/5.4k' DETECT)

TH5

CONDENSER/ EVAPORA T OR TEMPERATURE THERMISTOR
(0;/15k', 25;/5.4k' DETECT)

R.B

REMOTE CONTROLLER BOARD
CONNECTOR(PROGRAM TIMER)

CN2

TERMINAL BLOCK(REMOTE CONTROLLER

TB6

TRANSMISSION LINE)

CN2S(WHT)
2
1

3
2
1

CONT.BOARD
YLW
13 21

CN03

(RED)

INTAKE
CN20
(RED)

12 12

TH1

BRN

ORN

BLK

5

POWER
CN2D(WHT)

CN41 CN2L

CN25 CN32

LIQUID

PIPE

CN21

CN29

(WHT)

(BLK)

BLK

BLK

BLK

12

TH2 TH5

WHT

REMOCON
CN22
(BLU)

21

BLK
21

CN02(WHT)

VANE
CN6V
(WHT)

WIRELESS
CN90
(WHT)

21

BLU

BLU

H1

234

ON
OFF

234

234

234

234

ON
OFF

ON
OFF

ON
OFF

ON
OFF

4321

ON
OFF

PCH-P2~P6GAH only

NOTES:

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

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

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

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

NAME SYMBOLNAME SYMBOLSYMBOL

F1

DC14V

ZNR

1
2
3

6

MV

9

6

OUTDOOR
CN01(BLU)

BZ

RU

RECEIVER

LED2

LED1 SW1SW2

2
1

TRANSMISSION WIRES DC14V

RED
WHT

1
2

R.B

RED

CN2

88H

53

TB5

FS2FS1

GRN/YLW

I.B

W.B

WIRELESS REMOTE CONTROLLER BOARD(OPTION)

RU

RECEIVING UNIT

BZ

BUZZER

LED1

LED(RUN INDICATOR)

LED2

LED(HOT ADJUST)

SW1

SWITCH(HEATING ON/OFF)
SWITCH(COOLING ON/OFF)SW2

HEATER

FS1,2

THERMAL FUSE<98;10A:2GAH / 117;16A:4GAH
110;16A:2.5,3GAH,5,6GAH>

H1

HEATER
HEATER THERMAL SWITCH

26H

HEATER CONTACTOR

88H

NAME

P.B

OUTDOOR UNIT

TB4
YLW
ORN
BRN

S1
S2

S1
S2
S3S3

<PU(H)-P2~3VGA(A)>

TB1

L
N

S1
S2

<PU(H)-P2~6YGA(A)>

TB1

S3

L1

CNB

L2
L3
N

W.B

Please set the voltage using the remote
controller.

21

For the setting method, please refer to

TB6

the indoor unit installation manual.

TB2

L

RED
BLU

N

POWER SUPPLY
~(1PHASE)
220-240V 50HZ

HEATER

CN24

(YLW)

21

YLW

YLW

16

GRY

88H

26H

RED

6

RED

5

POWER SUPPLY
~(1PHASE)
220-240V 50Hz

POWER SUPPLY
3N~(3PHASE 4WIRES)
380-415V 50Hz

9

PKH-P1.6GALH, PKH-P2GALH, PKH-P1.6GALH1, PKH-P2GALH1

9

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

9

ZNR

VANE
CN6V
(WHT)

R.B

F1

OUTDOOR
CN01(BLU)

P.B

3

2

1

CONT.BOARD
CN02(WHT)

CN2S(WHT)

DC14V

CN2

TB6

21

1

TB5

2

MV

FAN
(WHT)

LED3 LED2 LED1

INDOOR UNIT

12 12

J14

J13

J12

J11

OFF

ON

SWE SW1SW2

21

D.SENSOR
CN31
(WHT)

INTAKE
CN20
(RED)

LIQUID
CN21
(WHT)

REMOCON
CN22
(BLU)

POWER
CN2D(WHT)

POWER

CN03

(RED)

123

1

2

3

2
1

1

I.B

TH1

5

MF

C

35

FC

13 21

321

CN41 CN2L

X4

J15

X4

TH2 TH5

PIPE
CN29
(BLK)

21

WIRELESS
CN90
(WHT)

RED

YLW

CN25 CN32

BRN

ORN

BRN

ORN

YLW

WHT

BLK

WHT

BLK

6

TRANSMISSION WIRES DC14V

S1
S2
S3

OUTDOOR UNIT

TB1

L
N

PE

TB4

S1
S2
S3

RECEIVER

RU

CNB

LED2

BZ

LED1 SW1SW2

W.B

J21

J22

J23

J24

<PU(H)-P1.6, 2VGA(A)>
POWER SUPPLY
~(1PHASE)
220-240V 50Hz

S1
S2
S3

TB1

L3

L2

L1

N

PE

<PU(H)-P1.6, 2YGA(A)>
POWER SUPPLY
3N~(3PHASE 4WIRES)
380-415V 50Hz

FS2FS1

WHT

RED

3

1

RED

53

88H

TB2

BLU

RED

GRN/YLW

L
N

PE

POWER SUPPLY
~(1PHASE)
220-240V 50Hz

H1

21

HEATER
CN24
(YLW)

BRN

YLW

16

88H

GRY

6
5

26H

PKH-P1.6, 2GALH
only

WHT

WHT

TERMINAL BLOCK(INDOOR/OUTDOOR

SW2

Manufacture Service board

J24J23J22J21

OFF

1ON432

MODEL

P2

SW2

J24J23J22J21

Manufacture

OFF

1ON432

Service board

MODEL

P1.6

SW1

Manufacture Service board

J15J14J13J12J11

OFF

ON

54321

BUZZER

BZ

RU

RECEIVING UNIT

WIRELESS REMOTE CONTROLLER BOARD

W.B

REMOTE CONTROLLER BOARD(OPTION)

R.B

CN2
TB6

CONNECTOR(PROGRAM TIMER)

TRANSMISSION LINE)

TERMINAL BLOCK(REMOTE CONTROLLER

THERMAL FUSE<84;10A>

FS2

TRANSMISSION(INDOOR-OUTDOOR)

LED3

VANE MOTOR

MV

POWER SUPPLY(R.B)

POWER SUPPLY(I.B)

LED2

LED1

SWITCH(COOLING ON/OFF)

SW2

SW1

LED2

LED1

LED(RUN INDICATOR)

SWITCH(HEATING ON/OFF)

LED(HOT ADJUST)

THERMAL FUSE<104;10A>

HEATER CONTACTOR

HEATER THERMAL SWITCH

HEATER

88H

26H

FS1

CONDENSER /EVAPORATOR TEMPERATURE
THERMISTOR (0;/15k',25;/5.4k' DETECT)

NAME

HEATER

TRANSMISSION LINE)(OPTION)

TERMINAL BLOCK(REMOTE CONTROLLER

TB5

F1
ZNR

P.B

PIPE TEMPERATURE THERMISTOR/LIQUID

TH5

TH2

TH1

ROOM TEMPERATURE THERMISTOR
(0;/15k',25;/5.4k' DETECT)

(0;/15k',25;/5.4k' DETECT)

TERMINAL BLOCK(HEATER)

CONNECTING LINE)

TB4

TB2

FAN MOTOR

MF

CAPACITOR(FAN MOTOR)

C

FAN PHASE CONTROL

RELAY(FAN MOTOR)

SWITCH(EMERGENCY OPERATION)

JUMPER WIRE(CAPACITY CODE)

JUMPER WIRE(MODEL SELECTION)

CONNECTOR(HA TERMINAL-A)

CONNECTOR(REMOTE SWITCH)

CONNECTOR(LOSSNAY)

FC

X4

SWE

SW2

SW1

CN41

CN32

CN2L

INDOOR CONTROLLER BOARD

VARISTOR

FUSE(4A)

INDOOR POWER BOARD

I.B

NAME SYMBOLNAME SYMBOLSYMBOL

H1

NOTES:

:Connector, :Terminal (block).

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

4.Symbols used in wiring diagram above are,

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

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

PKA-P1.6GAL, PKA-P2GAL, PKA-P1.6GAL1, PKA-P2GAL1

10

PKH-P2.5FALH, PKH-P3FALH, PKH-P4FALH
PKH-P2.5FALH1, PKH-P3FALH1, PKH-P4FALH1
PKH-P2.5FALH2, PKH-P3FALH2, PKH-P4FALH2
PKA-P2.5FAL, PKA-P3FAL, PKA-P4FAL
PKA-P2.5FAL1, PKA-P3FAL1, PKA-P4FAL1
PKA-P2.5FAL2, PKA-P3FAL2, PKA-P4FAL2

<PU(H)-P2.5,3VGA(A)>

INDOOR UNIT

CN2S(WHT)

2

DC14V

WHT

BLK
1231

HEATER
CN24
(YLW)

12

YLW

BRN

(OPTION)

TB2

L
N

PE

MV
TB2
TB4

TB5

TH1

TH2

TH5

W.B

RU
BZ
LED1
LED2

1
3

2
1

CONT.BOARD
CN02(WHT)

CN2LCN41

CN32CN25

LED1LED2LED3

PIPE

LIQUID

INTAKE
CN20
(RED)

CN21
(WHT)

2121

CN29

(BLK)

12

TH1

61

GRY

WHT

88H

5
6

WHT

TB4

S1

DP

XP

S2
S3

POWER SUPPLY
~(1PHASE)
220-240V 50Hz

VANE MOTOR
TERMINAL BLOCK(HEATER)
TERMINAL BLOCK(INDOOR/OUTDOOR
CONNECTING LINE)
TERMINAL BLOCK(REMOTE CONTROLLER
TRANSMISSION LINE)(OPTION)
ROOM TEMPERATURE THERMISTOR
(0;/15k',25;/5.4k' DETECT)
PIPE TEMPERATURE THERMISTOR/LIQUID
(0;/15k',25;/5.4k' DETECT)
CONDENSER / EVAPORATOR TEMPERATURE THERMISTOR
(0;/15k',25;/5.4k' DETECT)
WIRELESS REMOTE CONTROLLER BOARD
RECEIVING UNIT
BUZZER
LED(RUN INDICATOR)
LED(HOT ADJUST)

MF

123

C

I.B

FAN
(WHT)

FC

RED
1

WHT

BLK
53

X4

POWER

CN03

(RED)

YLW

BRN

ORN

5

POWER
CN2D(WHT)

X4

PUMP
CN27
(RED)

21

ON
OFF

J21

J12

J13

J14

D.SENSOR
CN31
(WHT)

J15

123

SW2 SW1SWE

J24

J23

J22

J11

wWhen installing optional

drain-up machine,
disconnect the CN31
jumper connector and
replace it with the
drain sensor(DS).

CN31 DRAIN SENSOR

(WHT)

When installing
drain-up machine
(Optional part).

CN27 PUMP

(RED)

213

21

H1

FS1 FS2

DS

RED
WHT

XP

88H

RED

1
2

35

RED
BLU

GRN/YLW

SYMBOL SYMBOLNAME SYMBOLNAME

P.B

I.B

C
MF

INDOOR POWER BOARD
FUSE(4A)

F1

VARISTOR

ZNR

INDOOR CONTROLLER BOARD

CN2L

CONNECTOR(LOSSNAY)

CN32

CONNECTOR(REMOTE SWITCH)

CN41

CONNECTOR(HA TERMINAL-A)

SW1

JUMPER WIRE(MODEL SELECTION)

SW2

JUMPER WIRE(CAPACITY CODE)

SWE

SWITCH(EMERGENCY OPERATION)

X4

RELAY(FAN MOTOR)

FC

FAN PHASE CONTROL

LED1

POWER SUPPLY(I.B)

LED2

POWER SUPPLY(R.B)

LED3

TRANSMISSION(INDOOR-OUTDOOR)
CAPACITOR(FAN MOTOR)
FAN MOTOR

F1

ZNR

OUTDOOR
CN01(BLU)

VANE
CN6V
(WHT)

WIRELESS
CN90
(WHT)

REMOCON
CN22
(BLU)

12

TH5TH2

26H

P.B

YLW

1

ORN

2

BRN

3

2
1

TB5

Manufacture

J11J12J13J14J15

Service board

12345

PKH-P2.5~4FALH
PKH-P2.5~4FALH
only

<PU(H)-P2.5,3,4VGAA.UK>

POWER SUPPLY
~(1PHASE)
220-240V 50Hz

TB4

MV

6

9

SW1

HEATER

R.B

DRAIN-UP MACHINE(OPTION)

S1

S1

S2

S2
S3

TB1

S3

L
N

PE

OUTDOOR UNIT

RECEI

-VER

RU

TRANSMISSION WIRES DC14V

Please set the voltage

using the remote controller.

For the setting method,

please refer to the indoor

unit Installation Manual.

MODELS

P2.5

P3

ON
OFF

P4

1

SWITCH(HEATING ON/OFF)

SW1
SW2

SWITCH(COOLING ON/OFF)

FS1,2

THERMAL FUSE<117; 10A : 2.5

FS1,2

THERMAL FUSE<117; 16A : 4FALH>

H1

HEATER

26H

HEATER THERMAL SWITCH

88H

HEATER CONTACTOR
REMOTE CONTROLLER BOARD(OPTION)
CONNECTOR(PROGRAM TIMER)

CN2

TERMINAL BLOCK(REMOTE CONTROLLER

TB6

TRANSMISSION LINE)

DRAIN PUMP

DP
DS

DRAIN SENSOR

XP

RELAY(DRAIN PUMP)

NOTES:

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

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

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

4.Symbols used in wiring diagram above are,

:Connector, :Terminal (block).

<PUH-P2.5YGA(A)>
<PU(H)-P3,4YGA(A)>
<PUH-P2.5,3,4YGAA.UK>
POWER SUPPLY
3N~(3PHASE 4WIRES)
380-415V 50Hz

W.B

CNB

SW2 SW1LED1BZLED2

Manufacture

J21J22J23J24

J21J22J23J24

J21J22J23J24

NAME

S1
S2
S3

L1
L2
L3

N

PE

TB6
21

SW2

Service board

1

1

1

TB1

234

234

234

•

3FALH>

CN2

R.B

ON
OFF

ON
OFF

ON
OFF

11

NAME

SYMBOL

NAME

SYMBOL SYMBOL

NAME

CN2

R.B

HEATER

HEATER THERMAL SWITCH

THERMAL FUSE (110°C 16A)
HEATER

26H

FS1,2

HEATER CONTACTOR88H

H

CONNECTOR(PROGRAM TIMER)

REMOTE CONTROLLER BOARD

TRANSMISSON LINE)

TERMINAL BLOCK(REMOTE CONTROLLER

TB6

RELAY(FAN MOTOR)X6

X5

X4

X2

SWE

SW2

SW1

JUMPER WIRE(MODEL SELECTION)
JUMPER WIRE(CAPACITY CORD)
SWITCH(EMERGENCY OPERATION)
RELAY(LOUVER)
RELAY(FAN MOTOR)
RELAY(FAN MOTOR)

LED3

LED2

POWER SUPPLY(R.B)
TRANSMISSOION(INDOOR • OUTDOOR)

I.B

CN2L

CN41

CN32

LED1

INDOOR CONTROLLER BOARD
CONNECTOR(LOSSNAY)

CONNECTOR(HA TERMINAL-A)

CONNECTOR(REMOTE SWITCH)

POWER SUPPLY(I.B)

FUSE(4A)

INDOOR POWER BOARD

VARISTOR

P.B

F1
ZNR

CAPACITOR(FAN MOTOR)
FAN MOTOR

LOUVER MOTOR
TERMINAL BLOCK(HEATER)

TB2

ML

MF

TB4

(INDOOR/OUTDOOR CONNECTING LINE)

TERMINAL BLOCK

ROOM TEMPERATURE THERMISTOR

(0°C/15k",25°C/5.4k" DETECT)

COND./EVA. TEMPERATURE THERMISTOR

PIPE TEMPERATURE THERMISTOR/LIQUID

(0°C/15k",25°C/5.4k" DETECT)

(0°C/15k",25°C/5.4k" DETECT)

TH1

TH2

TH5

C

NOTES:

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

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

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

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

J21 J22 J23 J24

J21 J22 J23 J24

J21 J22 J23 J24

J24J23J22

OFF

ON

4321

Manufacture

<For manufacture>

SW1

SW2

MODELS

J14J13J12J11 J15

Service board

OFF

ON

4321

OFF

ON

4321

J21

OFF

ON

4321

3GA(H)

4GA(H)

5GA(H)

6GA(H)

123 5

ON

OFF

4

<For service board>

Abnormality of the signal transmission between remote controller
and indoor unit.

( “EE” indicates abnormality of combination).

Abnormality of the signal transmission between indoor unit outdoor unit

E6 EF

E0 E5

Abnormality of pipe temperture thermistor/liquid(TH2).

Abnormality of room temperture thermistor(TH1).

Symptom

Abnormality of pipe temperature thermistor/Cond./Eva.(TH5).

Abnormality of pipe temperature.

Freezing/overheating protection is working.

P2

P1

Check code

P6
P8

P9

Abnormality in outdoor unit.Refer to outdoor unit wiring diagram.

U0 UL

F F F F

No corresponding unit.

No trouble generated in the past.

Abnormality in outdoor unit.Refer to outdoor unit wiring diagram.

- - - -

F1 F9

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

PE

PE

TB1

TB1

CN24

1

BLU

2

3
2
1

CN31

2
1

2
1

1

2

1
2

J24

J23

J22

P.B

ZNR

X4X5

LOUVER
CNL
(YLW)

13

X6X5

X6

1357

RED

C

ORN

MF

FAN

(WHT)

LED3 LED2 LED1

R.B

INDOOR UNIT

TRANSMISSION WIRE
DC14V

J21

OFF

ON

SWE

SW2

WIRELESS

INTAKE
CN20
(RED)

LIQUID
CN21
(WHT)

REMOCON
CN22
(BLU)

CN90
(WHT)

POWER
CN2D
(WHT)

POWER
CN03
(RED)

S3

S2

S1

N

L

F1

OUTDOOR
CN01(BLU)

3

2

1

<PU(H)-P3/P4VGAA.UK>

<PU(H)-P3VGA>
POWER SUPPLY

(1PHASE)
220-240V 50Hz

OUTDOOR UNIT

S1

S3

S2

CONT.BOARD
CN02(WHT)

CN2S(WHT)

DC14V

1

2

3

2
1

TH1

CN2

TB6

I.B

TH2

ML

513

CN41

CN2L

CN32

X4

X2

X2

BLK

BLU

YLW

WHT

YLW

YLW

YLW

ORN

BRN

WHT

BLK

YLW
ORN
BRN

SW1

J11

J12

J13

J14

J15

L3

L2

L1

S1

S3

S2

TB4

N

<PU(H)-P3YGA 6YGA>

<PU(H)-P3YGA~6YGAA.UK>
POWER SUPPLY

3N-(3PHASE 4WIRES)
380-415V 50Hz

TH5

1

2

PIPE

CN29
(BLK)

BLU

PE

<Only models PSH-P · GAH>

WHT

RED RED

YLW

RED

RED

88H

2
1

I.B

26H

6
5

6

1

HEATER
CN24
(YLW)

FS1FS2

BLU

BRN

5

2

1

3

88H

H

TB2

N

L

YLW

YLW

POWER SUPPLY
(1PHASE)
220-240V 50Hz

PSH-P3GAH, PSH-P4GAH, PSH-P5GAH, PSH-P6GAH
PSH-P3GAH1, PSH-P4GAH1, PSH-P5GAH1, PSH-P6GAH1
PSA-P3GA, PSA-P4GA, PSA-P5GA, PSA-P6GA
PSA-P3GA1, PSA-P4GA1, PSA-P5GA1, PSA-P6GA1

12

PMH-P1BA, PMH-P1.6BA, PMH-P2BA

(BLU)

REMOTECN90 CN32

12

CN22

CONTROLLER

12346

FAN

(WHT)

LED1

ZNR

T

FUSE

POWER
(RED)

CN03

5
3
1

CN2L

5

LED3

J11

J12

J13

J14

J15

J21

J22

J23

J24

SW2SW1SWE

OFF

ON

1

2

3

4

5

6

PIPE
CN29

(BLK)

1

2

(WHT)

(WHT)

(RED)

(WHT)

CN6V

CN21

CN20

CN31

VANE

INTAKE

LIQUID

D.SENSOR

1

2

1

2

3
2
1

LED2

TH1

TH5

5

4

2

1

MV

3

TH2

CN41

TB6

21

CN2

1

2

TB5

DS

YLW

ORN

RED

GRN

BLU

BLU

ORN
YLW

BRN

BRN

BLK

BLK

BLK

BLK

BLK
BLK

BLK

BLK

R.B

I.B

5

MF

TRANSMISSION WIRES DC14V

TB1

S2
S3

S1

L
N

TB1

S1

S3

S2

N

L3

L2

L1

S3

TB4

S2

S1

OUTDOOR UNIT

<PUH-P1.6, 2VGA>
<PUH-P1, 1.6, 2VGAA.UK>
POWER SUPPLY
~(1PHASE)
220 - 230 - 240V 50Hz

<PUH-P1.6, 2YGA>
<PUH-P1.6, 2YGAA.UK>
POWER SUPPLY
3N~(3PHASE 4WIRES)
380 - 400 - 415V 50Hz

See fig : w1

TRANSFORMER

T

[LEGEND]

NAME

SYMBOL

VARISTOR

POWER SUPPLY (R.B)
TRANSMISSION (INDOOR-OUTDOOR)
JUMPER WIRE (MODEL SELECTION)
JUMPER WIRE (CAPACITY CODE)
SWITCH (EMERGENCY OPERATION)

POWER SUPPLY (I.B)

RELAY (DRAIN PUMP)

FUSE (6.3A, 250V)

CONNECTOR (REMOTE SWITCH)

CONNECTOR (LOSSNAY)

CONNECTOR (HA TERMINAL-A)

INDOOR CONTROLLER BOARD

ZNR

LED1
LED2
LED3
SW1
SW2
SWE

X1

FUSE

CN2L
CN32
CN41

I.B

REMOTE CONTROLLER BOARD
CONNECTOR (PROGRAM TIMER)
TERMINAL BLOCK
(REMOTE CONTROLLER TRAMSMISSION LINE)

R.B

CN2
TB6

DP
DS
MF
MV

VANE MOTOR

DRAIN SENSOR
FAN MOTOR

DRAIN-UP MACHINE

(INDOOR/OUTDOOR CONNECTING LINE)

TERMINAL BLOCK

TERMINAL BLOCK
(REMOTE CONTROL TRANSMISSION LINE)
ROOM TEMPERATURE THERMISTOR

(0°C/15K", 25°C/5.4K" DETECT)
PIPE TEMPERATURE THERMISTOR/LIQUID

CONDENSER/EVAPORATOR TEMPERATURE
THERMISTOR (0°C/15K", 25°C/5.4K" DETECT)

(0°C/15K", 25°C/5.4K" DETECT)

TH5

TH2

TH1

TB5

TB4

BLU

BLU

DP

3

1

D.U.M

CNP

(YLW)

X1

X1

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

NOTES:

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

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

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

<w1>

SW2

ON
OFF

4231

ON
OFF

45231

J21 J22 J23 J24

ON
OFF

4231

ON
OFF

4231

J21 J22 J23 J24

J21 J22 J23 J24

PMH-P1BA
PMH-P1BA

1

PMH-P1BA2
PMH-P1.6BA

PMH-P1.6BA

1

PMH-P1.6BA2
PMH-P2BA

PMH-P2BA

1

PMH-P2BA2

J11 J12 J13 J14 J15 J11 J12 J13 J14 J15

PMH-P1/1.6/2BA
PMH-P1/1.6/2BA

1

SW1

J11 J12 J13 J14 J15

PMH-P1/1.6/2BA2

MODELS

Manufacture

Service board

PMH-P1BA

1, PMH-P1.6BA1, PMH-P2BA1

PMH-P1BA2, PMH-P1.6BA2, PMH-P2BA2

13

PLH-P3AAH.UK, PLH-P4AAH.UK, PLH-P5AAH.UK, PLH-P6AAH.UK
PLH-P3AAH1.UK, PLH-P4AAH1.UK, PLH-P5AAH1.UK, PLH-P6AAH1.UK

SYMBOL

P.B

F1
ZNR

I.B

CN2L
CN32
CN41
SW1
SW2
SWE
X1
X4
FC
LED1
LED2

LED3
C
MF

123

I.B

RED

FAN
(WHT)

FC

SWE
ON
OFF

INDOOR POWER BOARD

NAME

FUSE(4A)
VARISTOR
INDOOR CONTROLLER BOARD
CONNECTOR(LOSSNAY)
CONNECTOR(REMOTE SWITCH)
CONNECTOR(HA TERMINAL-A)
JUMPER WIRE(MODEL SELECTION)
JUMPER WIRE(CAPACITY CORD)
SWITCH(EMERGENCY OPERATION)
RELAY(DRAIN PUMP)
RELAY(FAN MOTOR)
FAN PHASE CONTROL
POWER SUPPLY(I.B)
POWER SUPPLY(R.B)
TRANSMISSION(INDOOR-OUTDOOR)
CAPACITOR(FAN MOTOR)
FAN MOTOR

GRILLE

MVMV MV MV

5

5

5

5

489510

7

D.HEATER
CNC (RED)

LED3 LED2 LED1

INTAKE
CN20
(RED)

321

12 12

BLK

BLK

H2

YLW

13

MF

321

C

WHT

BLK

D.U.M
CNP
(BLU)

X4

X4

SW2

J24

J23

J22

J21

5

1236

DP

12

YLW

YLW

1135

3

X1

X1

SW1

D.SENSOR

CN31

J14

J13

J12

J11

J15

(WHT)

DS

TH1

TH2

YLW

LIQUID
CN21
(WHT)

BLK

12

BLK

YLW

BRN

ORN

513 21

POWER
CN03
(RED)

TH5

CN2S(WHT)

2
1

3
2
1

CONTROLLER BOARD

CN02 (WHT)

WHT

BLK

POWER
CN2D
(WHT)

CN41 CN2L

CN32

PIPE

REMOCON

CN29

CN22

(BLK)

(BLU)

21

BLU

BLK

BLK

21

SYMBOL
MV
DP
DS
H2
TB2
TB4
TB5

TH1

TH2

TH5

R.B

DC14V

5

VANE
CN6V
(WHT)

WIRELESS

CN90

21

(WHT)

BLU

TB5

2
1

TRANSMISSION WIRES DC14V

VANE MOTOR

NAME

DRAIN-UP MACHINE
DRAIN SENSOR
DEW PREVENTION HEATER
TERMINAL BLOCK(HEATER)
TERMINAL BLOCK(INDOOR/OUTDOOR CONNECTING LINE)
TERMINAL BLOCK(REMOTE
CONTROLLER TRANSMISSION LINE)
ROOM TEMP.THERMISTOR
(0:/15k",25:/5.4k" DETECT)
PIPE TEMP .THERMIST OR/LIQUID
(0:/15k",25:/5.4k" DETECT)
COND./EVA.TEMP.THERMISTOR
(0:/15k",25:/5.4k" DETECT)
REMOTE CONTROLLER BOARD

CN2

CONNECTOR(PROGRAM TIMER)

TB6

TERMINAL BLOCK(REMOTE
CONTROLLER TRANSMISSION LINE)

F1

ZNR

OUTDOOR UNIT

CN01 (BLU)

9

1
2
3

W.B

CNB

YLW
ORN
BRN

P.B

BZ

OUTDOOR UNIT

TB4

S1
S2
S3

LED2

LED1

SW2SW1

S1
S2
S3

S1
S2
S3

CN2

TB1

L
N

PE

TB1

L1
L2
L3
N

PE

RU

R.B

21

TB6

PUH-P3VGA

<

PUH-P3, 4VGAA.UK

Y

POWER SUPPL
~ / N (1PHASE)
220-240V 50Hz

PUH-P3YGA~6YGA

<

PUH-P3YGAA.UK~6YGAA.UK
POWER SUPPLY

3N~(3PHASE 4WIRES)
380-415V 50Hz

>

SYMBOL

W.B

RU
BZ
LED1
LED2
SW1
SW2

HEATER

FS1
FS2
H1
26H
88H

>

Position of 88H.
(For Control box)

WIRELESS REMOTE CONTROLLER BOARD

NAME

RECEIVING UNIT
BUZZER
LED(RUN INDICATOR)
LED(HOT ADJUST)
SWITCH(HEATING ON/OFF)
SWITCH(COOLING ON/OFF)

THERMAL FUSE(72:,16A)
THERMAL FUSE(104:,16A)
HEATER
HEATER THERMAL SWITCH
HEATER CONTACTOR

HEATER
CN24
(YLW)

12

H1

FS2

FS1

88H

RED

5

RED

1

WHT

2

I.B

YLW

YLW

TB2

RED

L

3

BLU

POWER SUPPLY

N

~ / N (1PHASE)

PE

220V-240V 50Hz

88H

C

TB2

TB4

WHT

6

Y

GR

WHT

61

5

88H

26H

PLH-P3,4,5,6AAH.UK
PLH-P3,4,5,6AAH1.UK

SW1

Service boardManufactureMODELS

J15J14J13J12J11

54321

ON
OFF

MODELS

PLH-P3AAH.UK
PLH-P3AAH1.UK

PLH-P4AAH.UK
PLH-P4AAH1.UK

PLH-P5AAH.UK
PLH-P5AAH

PLH-P6AAH.UK
PLH-P6AAH

1

.UK

1

.UK

SW2

Manufacture

J23 J24J21J22

J23 J24J21J22

J24J23J22J21

J24J23J22J21

Service board

1234

1324

1234

1324

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

ON
OFF

ON
OFF

ON
OFF

ON
OFF

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

4. Symbols used in wiring diagram above are,
/ : Terminal , : Connector.

14

PLA-P3AA.UK, PLA-P4AA.UK, PLA-P5AA.UK, PLA-P6AA.UK

NAME
INDOOR POWER BOARD
FUSE(4A)
VARISTOR
INDOOR CONTROLLER BOARD
CONNECTOR(LOSSNAY)
CONNECTOR(REMOTE SWITCH)
CONNECTOR(HA TERMINAL-A)
JUMPER WIRE(MODEL SELECTION)
JUMPER WIRE(CAPACITY CODE)
SWITCH(EMERGENCY OPERATION)
RELAY(DRAIN PUMP)
RELAY(FAN MOTOR)
FAN PHASE CONTROL
POWER SUPPLY(I.B)
POWER SUPPLY(I.B)
TRANSMISSION(INDOOR-OUTDOOR)
CAPACITOR(FAN MOTOR)
FAN MOTOR

SYMBOL

P.B

F1
ZNR

I.B

CN2L
CN32
CN41
SW1
SW2
SWE
X1
X4
FC
LED1
LED2

LED3
C
MF

NAME
VANE MOTOR
DRAIN-UP MACHINE
DRAIN SENSOR
DEW PREVENTION HEATER
TERMINAL BLOCK(INDOOR/OUTDOOR CONNECTING LINE)
TERMINAL BLOCK(REMOTE
CONTROLLER TRANSMISSION LINE)
ROOM TEMP.THERMISTOR
(0:/15k",25:/5.4k" DETECT)
PIPE TEMP .THERMIST OR/LIQUID
(0:/15k",25:/5.4k" DETECT)
COND./EVA.TEMP.THERMISTOR
(0:/15k",25:/5.4k" DETECT)
REMOTE CONTROLLER BOARD
CONNECTOR(PROGRAM TIMER)
TERMINAL BLOCK(REMOTE
CONTROLLER TRANSMISSION LINE)

SYMBOL
MV
DP
DS
H2
TB4
TB5

TH1

TH2

TH5

R.B

CN2
TB6

NAME
WIRELESS REMOTE CONTROLLER BOARD
RECEIVING UNIT
BUZZER
LED(RUN INDICATOR)
LED(HOT ADJUST)
SWITCH(HEATING ON/OFF)
SWITCH(COOLING ON/OFF)

SYMBOL

W.B

RU
BZ
LED1
LED2
SW1
SW2

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

PE

PE

OFF

ON

543

J152J14J13J12J11

1

PLA-P3,4,5,6AA

S3

S2

S1

TB4

F1

P.B

123

I.B

MF

C

J24

J23

J22

J21

OFF

ON

2
1

1135

FC

3

DP

ZNR

LED3 LED2 LED1

12 12

J14

J13

J12

J11

21

3

2

1

DC14V

1

2

3

DS

TH2

CN2

TB6

21

1

TB5

2

TH1

513 21

321

CN41 CN2L

CN32

13

5

X1

X1

9

R.B

PLA-P3AA

1324

J24J23J22J21

1234

ON

OFF

J23 J24J21J22

OFF

ON

J15

X4

X4

SW2SW1

RU

BZ

LED2

LED1

W.B

CNB

WHT

RED

BLK

YLW

YLW

YLW

YLW

BRN

ORN

YLW

WHT

BLK

CN2S(WHT)

OUTDOOR UNIT

CN01 (BLU)

CONTROLLER BOARD

CN02 (WHT)

YLW
ORN
BRN

FAN
(WHT)

D.U.M
CNP
(BLU)

D.HEATER
CNC (RED)

D.SENSOR

CN31
(WHT)

INTAKE
CN20
(RED)

LIQUID
CN21
(WHT)

POWER
CN2D
(WHT)

POWER
CN03
(RED)

VANE
CN6V
(WHT)

SWE

SW2

SW1

WIRELESS

CN90
(WHT)

REMOCON

CN22
(BLU)

PIPE
CN29
(BLK)

21

TH5

BLU

BLU

BLK

BLK

BLK

BLK

BLK

BLK

SW1

Service boardManufactureMODELS

TRANSMISSION WIRES DC14V

S1
S2
S3

L1
L2
L3

N

S1
S2
S3

L
N

OUTDOOR UNIT

PU(H)-P3VGA

PU(H)-P3,4VGAA.UK
POWER SUPPL
~ / N (1PHASE)
220-240V 50Hz

POWER SUPPLY
3N~(3PHASE 4WIRES)
380-415V 50Hz

TB1

TB1

Service board

Manufacture

MODELS

SW2

PLA-P4AA

PLA-P5AA

PLA-P6AA

J23 J24J21J22

J24J23J22J21

1234

ON

OFF

1324

OFF

ON

5

5

5

5

MVMV MV MV

GRILLE

5

H2

321

1236

7

489510

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,
/ : Terminal , : Connector.

Y

PU(H)-P3YGA~6YGA
PU(H)-P3YGAA.UK~6YGAA.UK

PLA-P3AA1.UK, PLA-P4AA1.UK, PLA-P5AA1.UK, PLA-P6AA1.UK
PLA-P3AA, PLA-P4AA, PLA-P5AA, PLA-P6AA

15

PLH-P1.6KAH.UK, PLH-P2KAH.UK, PLH-P2.5KAH.UK
PLH-P1.6KAH1.UK, PLH-P2KAH1.UK, PLH-P2.5KAH1.UK

W.B

BZ

CNB

LED1

DS

TH1

TH2

TH5

SW1

9

W.R

SW2

REMOTE
CONTROLLER

BLK

1

BLK

3

BLK

1

BLK

2

BLK

1

BLK

2

RU

I.B

FAN

(WHT)

CN90

(WHT)

WIRELESS

ON

OFF

FC

SWE

MF

3

2

1

C

YLW

YLW

WHT

BLK

RED

VANE

5

3

1

J21

3

1
CNV
(GRN)

X4

X3

X4

X3

SW1

SW2

J11

J12

J13

J14

J15

J23

J24

J22

D.U.M

CNP

(BLU)

D.SENSOR

CN31

(WHT)

2

1

1

DP

2

BLU

RED

3

X1

INTAKE

CN20

(RED)

1

D.HEATER

CNC
(RED)

LED3

2

LIQUID

CN21

(WHT)

1

BLU

3

1

POWER

CN03

(RED)

LED1

LED2

PIPE

HEATER

CN29

CN24

(BLK)

(YLW)

2

1

2

RED

1

X1

3

YLW
1

1

YLW

BRN

ORN

5

3

CN41

CN25

REMOTE
CONTROLLER
CN22 (BLU)

2

YLW

1

1

BLU

88H

BLK

WHT

1

POWER

CN2D (WHT)

CN2L

CN32

POSITION
CN23 (GRN)

2

BLU

6

GRY

2

VANE

1

BRN

6
5

WHT
WHT

2

BRN

8
9
2
7
3
4
5

10

1
6

2

TRANSMISSION WIRES DC12V

1

TB5

26H

GRILLE

MV

CN2

LS

H2

1
TB6

2

R.B

CN2S(WHT)

2

DC14V

1

3
2
1

CONTROLLER BOARD

CN02 (WHT)

H1

FS2

ZNR

OUTDOOR UNIT

FS1

RED
WHT

F1

CN01 (BLU)

RED

1
2

P.B

1
2
3

5

YLW
ORN

BRN

88H

3

GRN/YLW

RED
BLU

TB4

S1
S2
S3

TB2

L
N

PE

OUTDOOR UNIT

S1
S2
S3

TB1

S1
S2
S3

TB1

PU(H)-P1.6, 2, 2.5VGA
PU(H)-P1.6, 2, 2.5VGAA.UK
POWER SUPPLY
~/N(1PHASE)
220-240V 50Hz

L
N

PE

PUH-P1.6, 2, 2.5YGA
PU(H)-P1.6, 2, 2.5YGAA.UK
POWER SUPPLY
3N~(3PHASE 4WIRES)
380-415V 50Hz

L1
L2
L3

N

PE

POWER SUPPLY
~/N(1PHASE)

220V-240V 50Hz

(1)

(1)

MODELS

Manufacture

PLH-P1.6KAH.UK
PLH-P1.6KAH1.UK
PLH-P2KAH.UK
PLH-P2KAH1.UK
PLH-P2.5KAH.UK
PLH-P2.5KAH1.UK

SW1

J14J13J12J11

Service board

15

J15

432

ON

OFF

PLH-P1.6KAH1.UK
PLH-P2KAH.UK

PLH-P2KAH1.UK
PLH-P2.5KAH.UK

PLH-P2.5KAH1.UK

PLH-P1.6KAH.UK

SW2

Manufacture

J23J24

J22J21

J23J24

J21J22

J23J24J21J22

service boardMODELS

1234

1234

1234

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

ON

unit Installation Manual.

OFF

ON
OFF

ON
OFF

NOTES:

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

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

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

4. Symbols used in wiring diagram above are,

[LEGEND]

SYMBOL

P.B

F1
ZNR

R.B

CN2
TB6

W.B

RU
BZ
LED1
SW1
SW2

W.R

INDOOR POWER BOARD

NAME

FUSE (4A)
VARISTOR
REMOTE CONTROLLER BOARD
CONNECTOR (PROGRAM TIMER)
TERMINAL BLOCK
(REMOTE CONTROLLER TRAMSMISSION LINE)
WIRELESS REMOTE CONTROLLER
BOARD (OPTION)
RECEIVING UNIT
BUZZER
LED (RUN INDICATOR)
SWITCH (HEATING ON/OFF)
SWITCH (COOLING ON/OFF)
WIRELESS REMOTE CONTROLLER
(OPTION)

SYMBOL

I.B

CN2L
CN25
CN32
CN41
FC
LED1
LED2
LED3
SW1
SW2
SWE
X1
X3

X4
C
DP
DS
H2

:Connector, :Terminal block.

INDOOR CONTROLLER BOARD
CONNECTOR (LOSSNAY)
CONNECTOR (HUMIDIFIER)
CONNECTOR (REMOTE SWITCH)
CONNECTOR (HA TERMINAL-A)
FAN PHASE CONTROL
POWER SUPPLY (I.B)
POWER SUPPLY (R.B)
TRANSMISSION (INDOOR-OUTDOOR)
JUMPER WIRE (MODEL SELECTION)
JUMPER WIRE (CAPACITY CODE)
SWITCH (EMERGENCY OPERATION)
RELAY (DRAIN PUMP/D.HEATER)
RELAY (VANE MOTOR)
RELAY (FAN MOTOR)
CAPACITOR (FAN MOTOR)
DRAIN-UP MACHINE
DRAIN SENSOR
DEW PREVENTION HEATER

NAME

SYMBOL

LIMIT SWITCH

LS

FAN MOTOR

MF

VANE MOTOR

MV

TERMINAL BLOCK (HEATER)

TB2

TERMINAL BLOCK

TB4

NAME

(INDOOR/OUTDOOR CONNECTING LINE)
TERMINAL BLOCK

TB5

(REMOTE CONTROLLER TRANSMISSION LINE)
ROOM TEMPERATURE THERMISTOR

TH1

(0;/15K', 25;/5.4K' DETECT)
PIPE TEMPERATURE THERMISTOR/LIQUID

TH2

(0;/15K', 25;/5.4K' DETECT)
CONDENSER/EVAPORATOR TEMPERATURE

TH5

THERMISTOR (0;/15K', 25;/5.4K' DETECT)

HEATER

THERMAL FUSE (98;,10A), (77;,10A)

FS1,2

HEATER

H1

HEATER THERMAL SWITCH

26H

HEATER CONTACTOR

88H

16

PLA-P1.6KA.UK, PLA-P2KA.UK, PLA-P2.5KA.UK

9

W.B

2

HEATER
CN24
(YLW)

1

1

2

REMOTE
CONTROLLER
CN22 (BLU)

2

1

VANE

POSITION

CN23 (GRN)

1

2

3

CONTROLLER BOARD
CN02 (WHT)

R.B

OUTDOOR UNIT

CN01 (BLU)

3

1

2

D.U.M

CNP

(BLU)

D.SENSOR

CN31
(WHT)

X4

X3

X1

X4

REMOTE
CONTROLLER

RU

FAN

(WHT)

CN90

(WHT)

WIRELESS

W.R

CNB

SW1

SW2

LED1

BZ

J15

BLK

BLK

BLK

BLK

BLK

BLK

BRN

YLW
ORN

WHT

BLK

BRN

ORN

YLW

BLU

BLU

RED

RED

YLW

YLW

BLK

WHT

RED

PIPE
CN29
(BLK)

2

1

1
2

TH5

GRILLE

4

8
9

6

1

10

5

3

7

2

S1

S3

S2

TB1

L3

PE

L1
L2

N

S1

PE

S3

S2

TB1

L
N

X1

C

MF

3

1

2

5

3

OUTDOOR UNIT

S1
S2
S3

TB4

P.B

ZNR

2

1

F1

2

CN2

1

TB6

LS

H2

MV

DC14V

1

2

TB5

2
1

CN2S(WHT)

CN32

CN2L

1

2

POWER

CN2D (WHT)

LIQUID
CN21
(WHT)

2

1

INTAKE

CN20

(RED)

2

1

1

2

3

SW2

J22

J23

J24

VANE

CNV
(GRN)

X3

SW1

J11

J12

J13

3

1

3

1

J14

3

1

LED1

LED2

1

D.HEATER

CNC
(RED)

LED3

CN41

3

5

POWER

CN03
(RED)

DP

1

FC

I.B

SWE

ON

OFF

J21

TH2

2

DS

3

1

1

TH1

CN25

TRANSMISSION WIRES DC12V

PUH-P1.6, 2, 2.5YGA

(1)

PUH-P1.6, 2, 2.5YGAA.UK
POWER SUPPLY
3N~(3PHASE 4WIRES)
380-415V 50Hz

PU(H)-P1.6, 2, 2.5VGA

(1)

PU(H)-P1.6, 2, 2.5VGAA.UK
POWER SUPPLY
~/N(1PHASE)
220-240V 50Hz

BLU

BLU

BRN

BRN

SW2

Manufacture

service boardMODELS

J23J24

1234

ON

OFF

1234

ON

OFF

J23J24

J22J21

J21J22

PLA-P1.6KA.UK
PLA-P1.6KA

1

.UK

PLA-P2KA.UK
PLA-P2KA

1

.UK

PLA-P2.5KA.UK
PLA-P2.5KA

1

.UK

1234

ON

OFF

J23J24J21J22

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

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

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

4. Symbols used in wiring diagram above are,

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

:Connector, :Terminal block.

NOTES:

NAME

NAME

SYMBOL

INDOOR CONTROLLER BOARD

NAME

SYMBOL

INDOOR POWER BOARD

VARISTOR

FUSE (4A)

[LEGEND]

F1

REMOTE CONTROLLER BOARD
CONNECTOR (PROGRAM TIMER)

R.B

CN2

ZNR

P.B

CONNECTOR (REMOTE SWITCH)

CONNECTOR (LOSSNAY)

CN2L

CN32
CN41

CONNECTOR (HA TERMINAL-A)

LED1
LED2

POWER SUPPLY (R.B)

LED3

TRANSMISSION (INDOOR-OUTDOOR)
JUMPER WIRE (MODEL SELECTION)

SW1

JUMPER WIRE (CAPACITY CODE)

SW2

SWITCH (EMERGENCY OPERATION)

SWE

I.B

POWER SUPPLY (I.B)

CONNECTOR (HUMIDIFIER)

CN25

FC

FAN PHASE CONTROL

X1

RELAY (DRAIN PUMP/D.HEATER)

X3

RELAY (VANE MOTOR)

X4

RELAY (FAN MOTOR)

TERMINAL BLOCK

TB6

(REMOTE CONTROLLER TRAMSMISSION LINE)

W.B

BZ

RU

BOARD (OPTION)
RECEIVING UNIT
BUZZER

SW1

LED1

SWITCH (HEATING ON/OFF)

LED (RUN INDICATOR)

SW2

SWITCH (COOLING ON/OFF)

WIRELESS REMOTE CONTROLLER

W.R

WIRELESS REMOTE CONTROLLER
(OPTION)

SYMBOL

DRAIN-UP MACHINE
DRAIN SENSOR
DEW PREVENTION HEATER

CAPACITOR (FAN MOTOR)

DP

H2

C

DS

ROOM TEMPERATURE THERMISTOR

TERMINAL BLOCK

FAN MOTOR

TERMINAL BLOCK
(REMOTE CONTROLLER TRANSMISSION LINE)

LIMIT SWITCH

VANE MOTOR

(0;/15K', 25;/5.4K' DETECT)

(INDOOR/OUTDOOR CONNECTING LINE)

LS
MF
MV

TB5

TB4

TH1

CONDENSER/EVAPORATOR TEMPERATURE
THERMISTOR (0;/15K', 25;/5.4K' DETECT)

PIPE TEMPERATURE THERMISTOR/LIQUID
(0;/15K', 25;/5.4K' DETECT)

TH2

TH5

SW1

Service board

Manufacture

MODELS

OFF

ON

43215

J14J13J12J11 J15

PLA-P1.6KA.UK
PLA-P2KA.UK
PLA-P2.5KA.UK
PLA-P1.6KA

1

.UK

PLA-P2KA

1

.UK

PLA-P2.5KA

1

.UK

PLA-P1.6KA1.UK, PLA-P2KA1.UK, PLA-P2.5KA1.UK

17

PEHD-P1.6EAH.UK,PEHD-P2EAH.UK,PEHD-P2.5EAH.UK,PEHD-P3EAH.UK
PEHD-P1.6EAH1.UK,PEHD-P2EAH1.UK,PEHD-P2.5EAH1.UK,PEHD-P3EAH1.UK
PEHD-P4EAH.UK,PEHD-P5EAH.UK,PEHD-P6EAH.UK
PEHD-P4EAH1.UK,PEHD-P5EAH1.UK,PEHD-P6EAH1.UK
PEAD-P1.6EA.UK,PEAD-P2EA.UK,PEAD-P2.5EA.UK,PEAD-P3EA.UK
PEAD-P1.6EA1.UK,PEAD-P2EA1.UK,PEAD-P2.5EA1.UK,PEAD-P3EA1.UK
PEAD-P4EA.UK,PEAD-P5EA.UK,PEAD-P6EA.UK
PEAD-P4EA1.UK,PEAD-P5EA1.UK,PEAD-P6EA1.UK

18

PUH-P1.6 / 2 / 2.5 / 3VGA
PUH-P2.5VGA1

19

PUH-P1.6 / 2 / 2.5 / 3 / 4 / 5 / 6YGA
PUH-P2.5YGA1

20

PU-P1.6 / 2 / 2.5 / 3VGA
PU-P2.5VGA1

21

PU-P3 / 4 / 5 / 6YGA

22

PUH-P1, 1.6, 2, 2.5, 3, 4VGAA.UK

23

PUH-P1.6, 2, 2.5, 3, 4, 5, 6YGAA.UK

24

PU-P1.6, 2, 2.5, 3, 4VGAA.UK

25

PU-P 1.6, 2, 2.5, 3, 4, 5, 6YGAA.UK

26

4

Measurement item

COOL: 1.8 ~ 2.4 HEAT: 1.8 ~ 2.6

0.33 ~ 0.55
72 ~ 105

-2 ~ 14

COOL: 27: HEAT: 20:

COOL: 8 ~ 12

HEAT: 40 ~ 50

COOL: 35 HEAT: 7

COOL: 40 ~ 50 HEAT: 0 ~ 16

Measurement method, remarks

Connect the pressure gauge to the high-pressure check valve.

Connect the pressure gauge to the low-pressure check valve.

Measure with piping surface thermometer.
Measure with piping surface thermometer.

Can be displayed on remote controller.

Measure with piping surface thermometer.
Measure with piping surface thermometer.

High pressure (MPa)
Low pressure (MPa)
Discharge pipe temperature (:)
Suction pipe temperature (:)
Indoor intake temperature (:)
Indoor outlet temperature (:)

Outdoor intake temperature (:)
Outdoor outlet temperature (:)

Pressure/temperature near JIS
standard operating conditions

A

B

C

D

E

F

G

H

When outdoor units (P1 to P6) and indoor units (P1 to P6) are combined in a proportion of 1:1 ("Hi" notch on indoor unit)

Gas pipe

Ball valve

4-way valve

Outdoor heat exchanger

63H

(High pressure switch)

63L(Low pressure switch)

Indoor heat exchanger

Accumulator

Liquid pipe

Stop valve

LEV

Drier

Compressor

A

B

C

D

Overload operation

Low-pressure operation

Standard
operation
range

Permissible operation range
Normal operation range

0.2 0.4 0.6 0.8
Intake pressure (MPa)

1.0

Discharge pressure (MPa)

2.0

3.0

3.3

Operation pressure ranges

REFRIGERANT SYSTEM DIAGRAM

•Checking operation statuses

Measurement points and items

•The table and diagrams below show the measurement item for each measurement point, and the pressure and temperature
near the JIS standard operating conditions.

•Measure the temperature and pressure of each part by following the descriptions in the table.

•Measurement time: Be sure to wait until the refrigerant circuit has stabilized (30 minutes to 1 hour) before taking
measurements.

27

Note 1: When draining the outdoor

unit's refrigerant, you must
attach a new drier amid the
extension piping. Be sure you
have the drier specified for
your model before beginning
the operation. The drier
model used with R22 can't be
used.

Indoor unit

Outdoor unit

Thermistor
(TH2)

Strainer

Flexible tube

Service
port

Accumulator

Ball valve

Strainer

Compressor

Refrigerant pipe

19.05A({3/4")
(with heat insulator)

Refrigerant pipe

9.52A({3/8")
(with heat insulator)

Ball valve
(with service port)

Strainer

4-way valve

Service
port

High pressure
protect switch

Thermistor
(TH3)

Capillary tube
(O.D.4.0✕I.D.3.0-R200)✕2pcs

Distributor
with
strainer

Flared
connection

Drier

Strainer

Linear expansion valve

Bypass
valve

Thermistor
(TH5)

Thermistor
(TH1)

Low
pressure
protect
switch

Muffler

Thermistor
(TH4)

Thermistor
(TH6)

Distributor
with
strainer

Strainer

Capillary
tube w1

Refrigerant flow in cooling
Refrigerant flow in heating

w1 : O.D.4.0✕I.D.2.0-R250(PUH-P6YGA)

O.D.4.0✕I.D.2.0-R400(PUH-P5YGA)

Indoor unit

Outdoor unit

Thermistor
(TH5)

Strainer

Flexible tube

Service
port

Accumulator

Ball valve

Strainer

Compressor

Refrigerant pipe

19.05A({3/4")
(with heat insulator)

Refrigerant pipe

9.52A({3/8")
(with heat insulator)

Ball valve
(with service port)

Strainer

4-way valve

Service
port

High pressure
protect switch

Thermistor
(TH3)

Capillary tube
(O.D.4.0✕I.D.3.0-R350)✕2pcs

Distributor
with
strainer

Flared
connection

Refrigerant flow in cooling
Refrigerant flow in heating

Strainer
Linear expansion valve

Drier

Thermistor
(TH1)

Indoor coil
thermistor
(TH2)

Thermistor
(TH4)

Muffler

Thermistor
(TH6)

Distributor
with
strainer

Strainer

Indoor unit

Outdoor unit

Thermistor
(TH1)

Strainer

Flared
connection

Flexible tube

Service
port

Accumulator

Ball valve

Strainer

Compressor

Refrigerant pipe

15.88A({5/8")
(with heat insulator)

Refrigerant pipe

9.52A({3/8")
(with heat insulator)

Ball valve
(with service port)

Strainer

4-way valve

Service
port

High pressure
protect switch

Outdoor heat exchanger

Thermistor
(TH3)

Distributor
with
strainer

Thermistor
(TH6)

Distributor
with
strainer

Strainer

Drier

Indoor coil
thermistor
(TH2)

Thermistor
(TH5)

Muffler

Thermistor(TH4)

Linear expansion valve

Strainer

Refrigerant flow in cooling
Refrigerant flow in heating

•Refrigerant Piping System Diagram

PUH-P1.6VGA / PUH-P2VGA / PUH-P2.5VGA / PUH-P2.5VGA1 / PUH-P3VGA
PUH-P1.6YGA / PUH-P2YGA / PUH-P2.5YGA / PUH-P2.5YGA

1 / PUH-P3YGA

<4-way valve solenoid coil>

Heating : ON
Cooling : OFF

PUH-P4YGA

PUH-P5YGA / PUH-P6YGA

28

Indoor unit

Outdoor unit

Thermistor
(TH2)

Strainer

Flexible tube

Service
port

Accumulator

Ball valve

Strainer

Compressor

Refrigerant pipe

19.05A({3/4")
(with heat insulator)

Refrigerant pipe

9.52A({3/8")
(with heat insulator)

Ball valve
(with service port)

Strainer

Service
port

High pressure
protect switch

Thermistor
(TH3)

Capillary tube
(O.D.4.0✕I.D.3.0- 200)✕2pcs

Distributor
with
strainer

Flared
connection

Drier

Strainer

Linear expansion valve

Thermistor
(TH5)

Thermistor
(TH1)

Low
pressure
protect
switch

Thermistor
(TH4)

Thermistor
(TH6)

Distributor
with
strainer

Strainer

Refrigerant flow in cooling

Indoor unit

Outdoor unit

Thermistor
(TH5)

Strainer

Flexible tube

Service
port

Accumulator

Ball valve

Strainer

Compressor

Refrigerant pipe

19.05A({3/4")
(with heat insulator)

Refrigerant pipe

9.52A({3/8")
(with heat insulator)

Ball valve
(with service port)

Strainer

4-way valve

Service
port

High pressure
protect switch

Thermistor
(TH3)

Capillary tube
(O.D.4.0✕I.D.3.0-R350)✕2pcs

Distributor
with
strainer

Flared
connection

Refrigerant flow in cooling

Strainer
Linear expansion valve

Drier

Thermistor
(TH1)

Indoor coil
thermistor
(TH2)

Thermistor
(TH4)

Thermistor
(TH6)

Distributor
with
strainer

Strainer

PU-P1.6VGA / PU-P2VGA / PU-P2.5VGA / PU-P2.5VGA1 / PU-P3VGA / PU-P3YGA

Indoor unit

Outdoor unit

Thermistor
(TH1)

Strainer

Flared
connection

Flexible tube

Service
port

Accumulator

Ball valve

Strainer

Compressor

Refrigerant pipe

15.88A({5/8")
(with heat insulator)

Refrigerant pipe

9.52A({3/8")
(with heat insulator)

Ball valve
(with service port)

Strainer

Service
port

High pressure
protect switch

Outdoor heat exchanger

Thermistor
(TH3)

Distributor
with
strainer

Thermistor
(TH6)

Distributor
with
strainer

Strainer

Drier

Indoor coil
thermistor
(TH2)

Thermistor
(TH5)

Thermistor(TH4)

Linear expansion valve

Strainer

Refrigerant flow in cooling

PU-P4YGA

PU-P5YGA / PU-P6YGA

29

Indoor unit

Outdoor unit

Thermistor
(TH2)

Strainer

Flexible tube

Service
port

Accumulator

Ball valve

Strainer

Compressor

Refrigerant pipe

19.05A({3/4")
(with heat insulator)

Refrigerant pipe

9.52A({3/8")
(with heat insulator)

Stop valve
(with service port)

Strainer

4-way valve

Service
port

High pressure
protect switch

Thermistor
(TH3)

Capillary tube
(O.D.4.0✕I.D.3.0-R200)✕2pcs

Distributor
with
strainer

Flared
connection

Drier

Strainer

Linear expansion valve

Bypass
valve

Thermistor
(TH5)

Thermistor
(TH1)

Muffler

Thermistor
(TH4)

Thermistor
(TH6)

Distributor
with
strainer

Strainer

Capillary
tube w1

Refrigerant flow in cooling
Refrigerant flow in heating

w1 : O.D.4.0✕I.D.2.0-R400(PUH-P5YGAA.UK)

O.D.4.0✕I.D.3.0-R450(PUH-P6YGAA.UK)

Indoor unit

Outdoor unit

Thermistor
(TH5)

Strainer

Flexible tube

Service
port

Accumulator

Ball valve

Strainer

Compressor

Refrigerant pipe

19.05A({3/4")
(with heat insulator)

Refrigerant pipe

9.52A({3/8")
(with heat insulator)

Stop valve
(with service port)

Strainer

4-way valve

Service
port

High pressure
protect switch

Thermistor
(TH3)

Capillary tube
(O.D.4.0✕I.D.3.0-R350)✕2pcs

Distributor
with
strainer

Flared
connection

Refrigerant flow in cooling
Refrigerant flow in heating

Strainer
Linear expansion valve

Drier

Thermistor
(TH1)

Indoor coil
thermistor
(TH2)

Thermistor
(TH4)

Muffler

Thermistor
(TH6)

Distributor
with
strainer

Strainer

PUH-P 1, 1.6, 2, 2.5, 3VGAA.UK

Indoor unit

Outdoor unit

Thermistor
(TH1)

Strainer

Flared
connection

Flexible tube

Service
port

Accumulator

Ball valve

Strainer

Compressor

Refrigerant pipe
P1···12.7A({1/2")
P1.6~P3···15.88A({5/8")
(with heat insulator)

Refrigerant pipe
P1···6.35A({1/4")
P1.6~P3···9.52A({3/8")
(with heat insulator)

Stop valve
(with service port)

Strainer

4-way valve

Service
port

High pressure
protect switch

Outdoor heat exchanger

Thermistor
(TH3)

Distributor
with
strainer

Thermistor
(TH6)

Distributor
with
strainer

Strainer

Drier

Indoor coil
thermistor
(TH2)

Thermistor
(TH5)

Muffler

Thermistor(TH4)

Linear expansion valve

Strainer

Refrigerant flow in cooling
Refrigerant flow in heating

PUH-P1.6, 2, 2.5, 2.5, 3YGAA.UK

PUH-P4VGAA.UK, PUH-P4YGAA.UK

<4-way valve solenoid coil>

Heating : ON
Cooling : OFF

PUH-P5YGAA.UK, PUH-P6YGAA.UK

30

Indoor unit

Outdoor unit

Thermistor
(TH2)

Strainer

Flexible tube

Service
port

Accumulator

Ball valve

Strainer

Compressor

Refrigerant pipe

19.05A({3/4")
(with heat insulator)

Refrigerant pipe

9.52A({3/8")
(with heat insulator)

Stop valve
(with service port)

Strainer

Service
port

High pressure
protect switch

Thermistor
(TH3)

Capillary tube
(O.D.4.0✕I.D.3.0- 200)✕2pcs

Distributor
with
strainer

Flared
connection

Drier

Strainer

Linear expansion valve

Thermistor
(TH5)

Thermistor
(TH1)

Thermistor
(TH4)

Thermistor
(TH6)

Distributor
with
strainer

Strainer

Refrigerant flow in cooling

Indoor unit

Outdoor unit

Thermistor
(TH5)

Strainer

Flexible tube

Service
port

Accumulator

Ball valve

Strainer

Compressor

Refrigerant pipe

19.05A({3/4")
(with heat insulator)

Refrigerant pipe

9.52A({3/8")
(with heat insulator)

Stop valve
(with service port)

Strainer

Service
port

High pressure
protect switch

Thermistor
(TH3)

Capillary tube
(O.D.4.0✕I.D.3.0-R350)✕2pcs

Distributor
with
strainer

Flared
connection

Refrigerant flow in cooling

Strainer
Linear expansion valve

Drier

Thermistor
(TH1)

Indoor coil
thermistor
(TH2)

Thermistor
(TH4)

Thermistor
(TH6)

Distributor
with
strainer

Strainer

PU-P1.6, 2, 2.5, 3VGAA.UK

Indoor unit

Outdoor unit

Thermistor
(TH1)

Strainer

Flared
connection

Flexible tube

Service
port

Accumulator

Ball valve

Strainer

Compressor

Refrigerant pipe

15.88A({5/8")
(with heat insulator)

Refrigerant pipe

9.52A({3/8")
(with heat insulator)

Stop valve
(with service port)

Strainer

Service
port

High pressure
protect switch

Outdoor heat exchanger

Thermistor
(TH3)

Distributor
with
strainer

Thermistor
(TH6)

Distributor
with
strainer

Strainer

Drier

Indoor coil
thermistor
(TH2)

Thermistor
(TH5)

Thermistor(TH4)

Linear expansion valve

Strainer

Refrigerant flow in cooling

PU-P1.6, 2, 2.5, 3YGAA.UK

PU-P4VGAA.UK, PU-P4YGAA.UK

PU-P5YGAA.UK, PU-P6YGAA.UK

31

5

Parts 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.
(Surrounding temperature 20:~30:)

Drain sensor

(Refer to below for a detail.)

(Refer to below for a detail.)

Room temperature
thermistor (TH1)

Pipe temperature
thermistor (TH2)

Condenser/evaporator
temperature thermistor
(TH5)

1
2
3

Normal

4.3k"~9.6k"

Abnormal

Open or short

Abnormal

Open or short

Normal

0.6k"~6.0k"

-20 0 20406080

< Thermistor for drain sensor >

Temperature (:)

0

1

2

3

4

5

6

7

8

9

10

Resistance (K")

HOW TO CHECK THE PARTS

5-1. Indoor unit

11

Common parts

<Thermistor Characteristic graph>

Thermistor for
lower temperature

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

Thermistor R0=15kΩ ±3%
Fixed number of B=3480kΩ ±2%

Rt=15exp { 3480( ) }

1

273+t

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

Drain sensor

1

273

< Thermistor for lower temperature >

50

40

30

20

Resistance (K")

10

0

-20 -10 0 10 20 30 40 50
Temperature (:)

Thermistor R0=6.0kΩ ±5%
Fixed number of B=3390kΩ ±2%

Rt=6exp { 3390( ) }

0: 6.0kΩ
10: 3.9kΩ
20: 2.6kΩ
25: 2.2kΩ
30: 1.8kΩ
40: 1.3kΩ

1

273+t

1

273

32

22

1

1

2

2

3

3

Red

White

Black

Relay connector

1
2

Red

Red

Parts name Check points

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

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

Drain-up
mechanism

Fan motor

Abnormal

Open or short

Normal

327k"

107"

Measure the resistance between the terminals using a tester.

Contactor
(for heater)
(Only P·KAH type)

Abnormal

Open or short

10 11

88H

Normal

P1.6~P6

Abnormal

Open or short

Red–Black

White–Black

Motor terminal

or

Relay connector

Normal

87.2"

104.1"

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

Vane motor

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

Heater
(Only P·KAH type)

Normal Abnormal

15k" Open or short

Normal

Abnormal

P1.6, P2

123.3k"

0.467kW 240V

P2.5, P3, P4

82.3k"

0.7kW 240V

P5, P6

57.6k"

1.0kW 240V

Open or short

Protector
OFF:130i5:

ON :80i20:

PLH-P1.6, P2, P2.5, P3, P4, P5, P6KAH
PLA-P1.6, P2, P2.5, P3, P4, P5, P6KA
PLH-P1.6, P2, P2.5KAH.UK
PLA-P1.6, P2, P2.5KA.UK

33

33

1

1

2

2

3

3

Red

White

Black

Relay connector

1
2

Gray

Gray

4

5

2

361

Orange

Red

Pink

Yellow Brown Blue

M

4

2

5

31

Pink

Orange

Red

Yellow Blue

M

Parts name Check points

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

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

Drain-up
mechanism (Option)

Fan motor

Abnormal

Open or short

Normal

195"

107"

Measure the resistance between the terminals using a tester.

Contactor

(Only P2~P6GAH)

Abnormal

Open or short

10 11

88H

Normal
P2~P6

Abnormal

Open or short

Red–Black

White–Black

Motor terminal

or

Relay connector

P2

70.6"

69.6"

P2.5, P3

45.0"

44.8"

P4

43.7"

55.3"

P5, P6

20.4"

20.7"

Normal

Open or short

Abnormal

Brown–Yellow

Brown–Blue

Red–Orange

Red–Pink

Connector

P2

186~214"

P2.5, P3

140~160"

Normal

Open or short

Abnormal

Brown–Yellow

Brown–Blue

Red–Orange

Red–Pink

Connector

P4, P5, P6

140~160"

Normal

Vane motor

Measure the resistance of each heater element by using a tester.
(Surrounding temperature 20:)

Heater

(Only P2~P6GAH)

Normal

Abnormal

P2

13.7"

0.467kW 80V

P2.5, P3

9.1"

0.7kW 80V

P4

7.1"

0.9kW 80V

P5, P6

6.4"

1.0kW 80V

Open or short

Protector
OFF:130i5:

ON :80i20:

PCH-P2, P2.5, P3, P4, P5, P6GAH
PCA-P2, P2.5, P3, P4, P5, P6GA

34

44

1

3

2

2

3

1

Red

White

Black

Relay connector

4

5

2

361

Orange

Red
Pink

Yellow Brown Blue

M

Parts name Check points

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

Fan motor

160"

Measure the resistance between the terminals using a tester.

Contactor
(for heater)

(Only P1.6, P2GALH)

Abnormal

Open or short

78

88H

Normal

Abnormal

Open or short

Red–Black

White–Black

Motor terminal

or

Relay connector

P1.6, P2

120.5"

111.3"

Normal

Open or short

Abnormal

Brown–Yellow

Brown–Blue

Red–Orange

Red–Pink

Connector

Normal

186~214"

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

Vane motor

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

Heater

(Only P1.6, P2GALH)

Normal

Abnormal

72"

800W 240V

Open or short

Protector
OFF:125i5:

ON :79i15:

PKH-P1.6, P2GALH
PKA-P1.6, P2GAL

35

55

1

1

2

2

3

3

Red

White

Black

Relay connector

4

5

2

361

Orange

Red

Pink

Yellow Brown Blue

M

Parts name Check points

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

Fan motor

107"

Measure the resistance between the terminals using a tester.

Contactor
(for heater)

(Only P2.5~P4FALH)

Abnormal

Open or short

10 11

88H

Normal

P2.5, P3, P4

Abnormal

Open or short

Red–Black

White–Black

Motor terminal

or

Relay connector

P2.5, P3

99.5"

103.9"

P4

62.6"

74.0"

Normal

Open or short

Abnormal

Brown–Yellow

Brown–Blue

Red–Orange

Red–Pink

Connector

Normal

P2.5, P3, P4

186~214"

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

Vane motor

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

Heater

(Only P2.5~P4FALH)

Normal

Abnormal

P2.5, P3

18.9"

700W 240V

P4

16.5"

800W 240V

Open or short

Protector
OFF:130i5:

ON :80i20:

PKH-P2.5, P3, P4FALH
PKA-P2.5, P3, P4FAL

36

66

White

Orage

Red

Black

Blue

Yellow

White

Orage

Red

Blue

Black

Brown

Yellow

Parts name Check points

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

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

Fan motor
P3, P4

P5, P6

Abnormal

Open or short

White–Black

Black–Blue

Blue–Yellow

Black–Red

Motor terminal

or

Relay connector

P3

112.1"

22.1"

41.0"

178.5"

P4

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

P5

28.0"

6.9"

13.3"

8.4"

53.6"

P6

21.7"

7.8"

14.3"

7.7"

54.4"

Normal

Timing motor

Normal

11000~13000"

Abnormal

Open or short

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

Heater

(Only P3~P6GAH)

Normal

Abnormal

P3

18.9"

0.7kW 80V

P4

14.7"

0.9kW 80V

P5, P6

13.2"

1kW 80V

Open or short

Protector

Protector

Protector
OFF:135i5:
ON :86i15:

Parts name Check points

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

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

Vane motor

Drain-up
mechanism

1
3

Blue

Blue

NormalConnector Abnormal

380" i7% Open or short

Normal Abnormal

400"~480" Open or short

M

Orange

Red

Brown

Brown — Yellow
Brown — Red
Brown — Orange
Brown — Green

Green

Yellow

31

5

4

2

PSH-P3, P4, P5, P6GAH
PSA-P3, P4, P5, P6GA

77

PMH-P1, P1.6, P2BA

37

88

Parts name Check points

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

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

Vane motor

Drain pump

1
2

Red

Red

Normal Abnormal

15k" Open or short

Normal Abnormal

290" Open or short

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

Fan motor

1

1

2

2

3

3

Red

White

Black

Relay connector

Abnormal

Open or short

Red–Black

White–Black

Motor terminal

or

Relay connector

Normal

PLH-P

3, 4, 5, 6AAH

87.2"

104.1"

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

Heater

(Only P3~P6AAH)

Normal

Abnormal

P3

18.9"

0.7kW 240V

P4

15.3"

0.867kW 240V

P5, P6

13.2"

1.0kW 240V

Open or short

107"

Measure the resistance between the terminals using a tester.

Contactor
(for heater)

(Only P3~P6AAH)

Abnormal

Open or short

10 11

88H

Normal

P3~P6

Protector
OFF:130:

ON :80i20:

PLH-P3, P4, P5, P6AAH
PLA-P3, P4, P5, P6AA

38

5-2 Outdoor unit

M

4

6

2
3

5

1

Blue

Brown

Yellow

Orange

Red

White

Linear expansion valve
(LEV)

Parts name

Check points

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

Disconnect the connector then measure the resistance using a tester. (Surrounding temperature 20:)

(Refer to the P.42 for a detail.)

Liquid temperature
thermistor (TH3)

Discharge temperature
thermistor (TH4)

Condenser/evaporator
temperature thermistor
(TH6)

Normal

4.3k"~9.6k"

160k"~410k"

4.3k"~9.6k"

TH3
TH4
TH6

Abnormal

Open or short

Measure the resistance between the terminals using a tester.
(Surrounding temperature 20C°)

4-WAY VALVE
SOLENOID COIL
(21S4)

Normal

1430"

Normal

(1) - (5)

White - Red

(2) - (6)

Yellow - Brown

(3) - (5)

Orange - Red

(4) - (6)

Blue - Brown

Abnormal

Abnormal

150" ±10%

Open or short

Open or short

Measure the resistance between the terminals using a tester.
(Surrounding temperature 20°)

BYPASS VALVE
SOLENOID COIL
(21R)

Normal

P5, P6
1970"

P1, P1.6

1920" ±7%

P2~P6

1516" ±7%

Abnormal

Open or short

Measure the resistance between the terminals using a tester.

CRANKCASE
HEATER (HC)

Normal Abnormal

Open or short

Measure the resistance between the terminals using a tester.
(Surrounding temperature 20C°)

FAN MOTOR(MF)

Normal

57.4" ±10%

99.7" ±10%

Motor lead wire

Abnormal

Open or short

White — Black
White — Red

Red

Black

White

Orange

Protector
<PUH> OFF:135i5:
<PU> OFF:120i5:

PUH-P1.6, P2, P2.5, P3VGA PUH-P1.6, P2, P2.5, P3, P4, P5, P6YGA
PU-P1.6, P2, P2.5, P3VGA PU-P2, P2.5, P3, P4, P5, P6YGA

39

PU(H)-P1, P1.6, P2, P2.5, P3VGAA(.UK)

M

4

6

2
3

5

1

Blue

Brown

Yellow

Orange

Red

White

Linear expansion valve
(LEV)

Parts name

Check points

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

Disconnect the connector then measure the resistance using a tester. (Surrounding temperature 20:)

(Refer to the P.42 for a detail.)

Liquid temperature
thermistor (TH3)

Discharge temperature
thermistor (TH4)

Condenser/evaporator
temperature thermistor
(TH6)

Normal

4.3k"~9.6k"

160k"~410k"

4.3k"~9.6k"

TH3
TH4
TH6

Abnormal

Open or short

Measure the resistance between the terminals using a tester.
(Surrounding temperature 20C°)

4-WAY VALVE
SOLENOID COIL
(21S4)

Normal

1430"

Normal

(1) - (5)

White - Red

(2) - (6)

Yellow - Brown

(3) - (5)

Orange - Red

(4) - (6)

Blue - Brown

Abnormal

Abnormal

150" ±10%

Open or short

Open or short

Measure the resistance between the terminals using a tester.
(Surrounding temperature 20°)

BYPASS VALVE
SOLENOID COIL
(21R)
(Only
PUH-P5,P6YGAA.UK)

Normal

P5, P6
1970"

P1, P1.6

1920" ±7%

P2~P6

1516" ±7%

Abnormal

Open or short

Measure the resistance between the terminals using a tester.

CRANKCASE
HEATER (HC)

Normal Abnormal

Open or short

Measure the resistance between the terminals using a tester.
(Surrounding temperature 20C°)

FAN MOTOR(MF)

Normal

57.4" ±10%

99.7" ±10%

Motor lead wire

Abnormal

Open or short

White — Black
White — Red

Red

Black

White

Orange

Protector
<PUH> OFF:135i5:
<PU> OFF:120i5:

PU(H)-P1.6, P2, P2.5, P3, P4, P5, P6YGAA(.UK)

40

COMPRESSOR TECHNICAL DATA

Compressor model

Winding

Resistance

( " )

OPEN
CLOSE

160 ± 5:
90 ± 10:

160 ± 5:
90 ± 10:

160 ± 5:
90 ± 10:

Protection
device

U-V

(R-C)

U-W

(S-C)

W-V

U-V

(R-C)

U-W

(S-C)

W-V

RE277VHSM RE277YFKM

Unit

PUH-P1.6VGA
PU-P1.6VGA

PUH-P1.6YGA

PUH-P2VGA

PU-P2VGA

PUH-P2.5VGA

(1)

PU-P2.5VGA(1)

NE38VMJM NE41VMJM

1.80

3.00
—

10.8

10.8

10.8

5.21

5.21

5.21

NE38YEJM

PUH-P2YGA

5.00

5.00

5.00

NE41YEJM

PUH-P2.5YGA

(1)

0.85

2.15
—

0.79

2.19
—

Unit

Compressor model

Winding

Resistance

( " )

PUH-P5YGA

PU-P5YGA

PUH-P6YGA

PU-P6YGA

HE86YAA HE101YAA

2.40

2.40

2.40

PUH-P4YGA

PU-P4YGA

NE56YDJM

3.20

3.20

3.20

PUH-P3VGA

PU-P3VGA
NE52VNJM

0.64

1.67
—

PUH-P3YGA

PU-P3YGA

NE52YDJM

3.70

3.70

3.70

2.20

2.20

2.20

(at 20°C)

(at 20°C)

—
—

—
—

—
—

OPEN
CLOSE

155 ± 5:
90 ± 10:

130 ± 5:
108 ± 11:

130 ± 5:
108 ± 11:

Protection
device

<Inner thermostat (49C)> <Inner thermostat (49C)>

—
—

—
—

Compressor model

Winding

Resistance

( " )

U-V

(R-C)

U-W

(S-C)

W-V

U-V

(R-C)

U-W

(S-C)

W-V

RE277VHSMT RE277YFKM

Unit

PUH-P1.6VGAA.UK

PU-P1.6VGA.UK

PUH-P2VGAA.UK

PU-P2VGAA.UK

NE36VMJMT

1.80

3.00
—

10.8

10.8

10.8

5.01

5.01

5.01

NE36YEKMT

0.89

2.03
—

Unit

Compressor model

Winding

Resistance

( " )

PUH-P5YGAA.UK

PU-P5YGAA.UIK

PUH-P6YGAA.UK

PU-P6YGAA.UK

ZR61KCE-TFD

(at 25°C) (at 25°C)

(at 20°C)

[Except P5, P6]

ZR72KCE-TFD

0.628 ~ 0.722

0.628 ~ 0.722

0.628 ~ 0.722

0.517

0.517

0.517

PUH-P4YGAA.UK

PU-P4YGAA.UK

NE56YDKMT

3.32

3.32

3.32

PUH-P3VGAA.UK

PU-P3VGAA.UK

NE52VNJMT

0.64

1.67
—

3.59

3.59

3.59

PUH-P3YGAA.UK

PU-P3YGAA.UK

PUH-P1VGAA.UK

PUH-P1.6YGAA.UK

PU-P1.6YGA.UK

PUH-P2YGAA.UK

PU-P2YGAA.UK

U-V

(R-C)

U-W

(S-C)

W-V

Unit

Compressor model

Winding

Resistance

( " )

PUH-P2.5VGAA.UK

PU-P2.5VGAA.UK

NE41VMJMT

PUH-P2.5YGAA.UK

PU-P2.5YGAA.UK

NE41NEKMT

5.00

5.00

5.00

PUH-P4VGAA.UK

PU-P4VGAA.UK

NE56VNJMT

0.62

1.59
—

RE189VHSMT

2.79

3.36
—

0.87

2.22
—

NE52YDKMT

OPEN
CLOSE

155 ± 5:
90 ± 10:

160 ± 5:
90 ± 10:

160 ± 5:
90 ± 10:

Protection
device

—
—

—
—

OPEN
CLOSE

160 ± 5:
90 ± 10:

155 ± 5:
90 ± 10:

Protection
device

—
—

—
—

OPEN
CLOSE

160 ± 5:
90 ± 10:

Protection
device

—
—

—
—

—
—

U

Y type V type

V

W

C

INNER PROTECTION

R

S

41

<Thermistor characteristic graph>

Thermistor for
lower temperature

Liquid temperature thermistor(TH3)
Condenser/evaporator temperature
thermistor(TH6)

Thermistor R0=15k' ±3%
Fixed number of B=3480k' ±2%

Rt=15exp { 3480( ) }

1

273+t

1

273

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

Thermistor for

Discharge temperature thermistor(TH4)

higher temperature

< Thermistor for lower temperature >

50

40

30

20

Resistance (K")

10

0

-20 -10 0 10 20 30 40 50

< Thermistor for higher temperature >

25

Temperature (:)

Thermistor R120=7.465k' ±2%
Fixed number of B=4057k' ±2%

Rt=7.465exp { 4057( ) }

1

273+t

1

393

20: 250k'
30: 160k'
40: 104k'
50: 70k'
60: 48k'
70: 34k'
80: 24k'
90: 17.5k'
100: 13.0k'
110: 9.8k'

20

15

10

Resistance (K")

5

0

90 100 110 120

Temperature (:)

42

D

A

E

B

C

Open

Extra tightning (80~100pulse)

Pulse number

2000 pulse
Opening a valve
all the way

Close

Valve position (capacity)

4

[4

3

6
5

[3

2

[2

1

[1

[4
[3

[2
[1

Controller board

Drive circuit

Connector(CNLEV)

DC12V

Brown

Red

Blue

Orange

Yellow

White

M

4

6

2
3

5

1

Blue

Brown

Yellow

Orange

Red

White

Linear expansion valve

Linear expansion valve

① Operation summary of the linear expansion valve.

• Linear expansion valve open/close through stepping motor after receiving the pulse signal from the indoor controller board.

• Valve position can be changed in proportion to the number of pulse signal.
<Connection between the indoor controller board and the linear expansion valve>

<Output pulse signal and the valve operation>

Output

(Phase)

{1
{2
{3
{4

Linear expansion valve operation

➁

1
ON
ON

OFF
OFF

2

OFF

ON
ON

OFF

Output

3
OFF
OFF

ON
ON

4

ON
OFF
OFF

ON

Closing a valve : 1 → 2 → 3 → 4 → 1
Opening a valve : 4 → 3 → 2 → 1 → 4

The output pulse shifts in above order.
❈ 1. When linear expansion valve operation stops, all output phase

become OFF.

2. At phase interruption or when phase does not shift in order,
motor does not rotate smoothly and motor will locks and vibrates.

❈ When the switch is turned on, 2200 pulse closing valve signal

will be send till it goes to
tion.

When the valve move smoothly, there is no noise or vibration
occurring from the linear expansion valve : however, when the
pulse number moves from E to A or when the valve is locked,
more noise can be heard than normal situation.

❈ Noise can be detected by placing the ear against the screw dri-

ver handle while putting the screw driver to the linear expansion
valve.

A point in order to define the valve posi-

43

Trouble shooting

Problem Check point Corrective measure

Remove the connector from the controller board and connect diagnostic
LEDs.

Pulse signal will be sent out for 10 seconds as soon as the main switch is
turn on. If there is LED with lights on or lights off, it means the operation
circuit is abnormal.

Motor will idle and make ticking noise when motor is operated while the linear
expansion valve is locked.
This ticking sound is the sign of the abnormality.

Measure the resistance between the each coil (red-white, red-orange,
brown-yellow, brown-blue) using a tester. It is normal if the resistance
is in the range of 150'±10%.



1 Check improperly connected connector terminals and the wire colors.
2 Remove the connector on the controller board side and check electrical

conductance

Operation circuit
failure of the micro
processor.

Exchange the linear
expansion valve.

Exchange the indoor
controller board at drive
circuit failure.

Exchange the linear
expansion vale.

Disconnect the connector
at the controller board,
then check the continuity.

Wrong connection of
the connector or
contact failure.

Short or breakage of
the motor coil of the
linear expansion valve.

Linear expansion
valve mechanism is
locked.

6
5
4
3
2
1

1k" LED

➂

44

MICROPROCESSOR CONTROL6

OUTDOOR UNIT SIDE

INDOOR UNIT SIDE

AC220, 230, 240V
AC380, 440, 415V

Power supply

terminal bed

Current

detection

Compressor

Fuse

Fuse

Connecting terminal

bed between the

indoor and outdoor unit

Connecting terminal

bed between the

indoor and outdoor unit

Remote controller

terminal bed

Remote controller

terminal bed

Communication

link

Communication

link

Communication

link

•Drain pump

•Louver

•Dew prevention heater

Relay

Relay

Relay

Relay

Driver

Driver

Fan control

Fan control

Driver

Microprocessor

Indoor fan

Vane

Vane

Outdoor fan

Crankcase

heater

LEV

DC/DC

converter

Fuse

DC5V

12V

5V

4A

DC14V

DC24V

AC220~240V

AC220~240V/DC24V

PL(H)(A)-P1.6~2.5KA(H)
only

Indoor powerboard

Indoor controller

LED1

Power supply
for Microprocessor

LED2

Power supply
for Remote controller

Notes : As for PMH-P•BA, Indoor powerboard and Indoor controller on the whole.

LED3

Communication
between the indoor
and outdoor unit

DC/DC

converter

Current

detection

Key entry

Liquid crystal display

Transmission /

Receiving signal

DC5V for

Microprocessor

4-way valve,

Solenoid valve

Electromagnetic

contactor

6-1. FUNCTIONAL BLOCK CHART

45

6-2. System construction

Standard 1:1 Synchronized twin. Triple

1Unit (indoor/outdoor) power supply L1/L2/L3/N
2Connecting line between the indoor and

outdoor; S1/S2/S3, Polarized 3-wire

3Remote controller transmission line; Non

polarezed 2-wire

4Auxiliary heater exclusive power supply; L/N

1Unit (indoor/outdoor) power supply L1/L2/L3/N
2Connecting line between the indoor and outdoor; S1/S2/S3, Polarized 3-wire
3Remote controller transmission line; Non polarezed 2-wire
4Auxiliary heater exclusive power supply; L/N

1Unit (indoor/outdoor) power supply L1/L2/L3
2Connecting line between the indoor and

outdoor; S1/S2/S3, Polarized 3-wire

3Remote controller transmission line; Non

polarezed 2-wire

4Auxiliary heater exclusive power supply; L/N

Remote control main/sub setting necessity
(In case of 2 remote controllers)

No setting (initial setting)
Refrigerant address setting; SW1; 3~6

Various setting

Remote controller

Main Sub

Indoor unit

Outdoor unit

Remarks

Group control

1

4

2

3

Main

(00)

Outdoor unit; (00)...Refrigerant address

(SW1; 3~6)

Indoor unit; (00)–w

Indoor unit number
(auto setting)

Refrigerant address
(receiving from the
outdoor unit)

Outdoor unit; (00)...Refrigerant address

(SW1; 3~6)

Indoor unit; (00)–w

Indoor unit number
(auto setting)

Refrigerant address
(receiving from the
outdoor unit)

(00)-1 (00)-2 (00)-3

Sub

1

44

222

4

3

Main

(00)

(00)-1 (00)-2 (01)-1

1

(01)

1

(02)

1

44

222

4

(02)-1 (02)-2

4

2

2

4

3

333

(1) Indoor unit number is set automatically
(2) When the refrigerant address of the unit is "00", Remote controller is supplied.

Remote control main/sub setting necessity
(In case of 2 remote controllers)

No setting
No setting

Remote control main/sub setting necessity
(In case of 2 remote controllers)

No setting (initial setting)
No setting (initial setting)

Various setting

Remote controller

System construction

System construction

Indoor unit

Outdoor unit

Remarks (1) Indoor unit number is set automatically

(1) System construction
A-control model which just wires the connecting line between the indoor and outdoor unit and supply the power is applicable to
any models of standard (1:1), twin and triple. (Refer to 2 Start-up system.)

46

(2) The transmitting specification for “A” control

Cross section

of cable

Round

2.5

2.5

1.5

2.5

3

3

4

4

(50)

✽2

(45)

✽3

60

✽4

Not

applicable

✽5

Flat

✽1 : Power supply cords of appliances shall not be lighter than design 245 IEC or 227 IEC.
✽2 : In case that cable with stripe of yellow and green is available.
✽3 : In case of regular polarity connection (S1-S2-S3), wire size is 1.5mm

2

.

✽4 : In case of regular polarity connection (S1-S2-S3).
✽5 : In the flat cables are connected as this picture, they can be used up to 80m.

✽6 : Mentioned cable length is just a reference value.

It may be different depending on the condition of installation, Humidity or materials, etc.

Flat

Round

Wire size

(mm

2

)

Number
of wires

Clockwise : S1-S2-S3
w Pay attention to stripe of yellow and green

Clockwise : S1-S2-S3-Open
w Connect S1 and S3 to the opposite angle

Not applicable
(Because center wire has no cover finish)

From left to right : S1-Open-S2-S3

Polarity

L(m)

✽6

(3C Flat cable ✕ 2)

S1 S2 S3

1Wiring regulations

Section Communications from remote controllers

The maximum length of
total wiring

500m 80m (50m for the wirings between indoor and

Communications between indoor and outdoor units

outdoor units; 30m for the wirings among indoor
units)

The maximum numbers
for connection

One remote controller can connect and operate
up to 16 indoor units by grouping them.
One group can connect up to two remote con­trollers.

2

❋

1

❋

One outdoor unit can connect up to four indoor
units.

❋1 Remote controller considers multiplex units as

a single group.

❋2 PSA-JGA should be excluded.

The cables applicable 0.3mm

2

to 1.25mm

2

Use either VVF flat-type cable (3 cores:
{1.6mm or more) or wires in the table below.
❋3 The diameter of the cables depends on

each unit.

Others The wirings as follows are not allowed:

• The wiring that the indoor units of the same

The core wire connected to terminal S2 shall be
placed at the center of VVF flat-type cable.

refrigerant system are connected through TB5.

• The wiring which directly connects the terminals
for remote controllers.

2Transmitting specification

Section Communications from remote controllers

Communications between indoor and outdoor units
Transmitting speed 83.3 bit/sec. (1 bit = 12ms) 83.3 bit/sec. (1 bit = 12ms)
Normal transmission The terminal for remote controller transmits sig-

nals every 7.5 seconds; the indoor unit whose

Outdoor unit transmits signals every 3 seconds;
all the connected indoor units respond them.

refrigerant address is “0” responds them.
Modulation The waveform modulates at 50kHz. There is no modulation.
Detection of abnormal

communication

When transmitting error is detected for three con-

secutive minutes.

When transmitting error is detected for three
consecutive minute.

WIRING SPECIFICATIONS FOR 220~240V 50Hz
(INDOOR-OUTDOOR CONNECTING CABLE)

PU(H)-P1.6VGA~P6YGA
PU(H)-P1VGAA.UK~P6YGAA.UK
(Except PUH-8YE,PUH-10YE)

47

(3) The waveforms of from remote controller communications

The following graphs are the examples for measuring waveforms on the wirings of remote controlled transmission at the
terminal block for remote controller.

a) Ameasuring example in the sequence of startup b) Ameasuring example during normal stop

Transmission
from
remote
controller

Transmission
from
indoor unit

7.5
seconds

Transmission
from
remote
controller

Transmission
from
indoor unit

7.5
seconds

5V/div, 1sec/div: 5V/div, 1sec/div:

c) Expanded waveform 1 (signal 111000....) d) Expanded waveform 2 (50Hz carrier)

5V/div, 10msec/div: 5V/div, 2µsec/div:

• During normal operation, the remote controller interactively exchanges signals with the indoor unit of refrigerant address “0”.
When the remote controller cannot receive signals from the indoor unit of refrigerant address “0” for 3 minutes, it is considered
as abnormal. E0 is displayed on the remote controller as an error.

48

(4) The waveforms of communications between indoor and outdoor units

The following graphs are the examples for measuring waveforms on the wirings of connecting indoor and outdoor units at
between S2 and S3 of the outdoor terminal block TB1.

a) Ameasuring example the sequence of startup: 1 b) A measuring example in the sequence of startup: 2

Transmission
from
indoor unit

Transmission
from
outdoor unit

10V/div, 500msec/div: 10V/div, 500msec/div:

c) Ameasuring example during normal stop

(When one outdoor unit connects one indoor unit)

Transmission
from
indoor unit

Transmission
from
outdoor unit

Transmission
from
indoor unit

Transmission
from
outdoor unit

d) Ameasuring example during normal stop

(When one outdoor unit connects two indoor units)

Transmission
from
indoor unit

Transmission
from
one indoor unit

Transmission
from
another
indoor unit

10V/div, 500msec/div: 10V/div, 500msec/div:

c) Expanded waveform

10V/div, 50msec/div:

• During normal operation, outdoor unit interactively exchanges signals with all the connected indoor units.

• When outdoor unit cannot receive signals for three minutes from an indoor unit due to any trouble like cable disconnection, it
is considered as abnormal and the outdoor unit stops. E8 is displayed on the remote controller. This is to avoid independent
operation of indoor units.

49

(5) Start-up system

Power ON

YES

NO

1 Refrigerant address

transmitting

Power supply control

to remote controller

3 Set number of the

connected unit

4 Set number of the

indoor unit

6 Collecting the unit

information

7 Collecting the

operation data

Set up finish

2 Refrigerant

address "0"?

YES

NO

5 Duplication

detection

Example

2 blinking 2 blinkingNot lighted

3 seconds

A control unit is applicable to any models of standard (1:1), twin and triple without switch setting according to carrying out the
below process automatically when the power is supplied.
When the power is supplied, following processes of 1 Refrigerant address transmitting, 2 Power supply control to remote
controller, 3 Set number of the connected unit, 4 Set number of the indoor unit, 5 Duplication detection, 6 Collecting the unit
information and 7 Collecting the operation data are carried out as shown on the figure.
Also when detecting the duplicated setting in the step 5, back to the first step and reset it.

; Transmitting the switch setting

contents on the outdoor unit
remote controller
(SW1-3~6)

; Feeding control to remote

controller
Feeding the indoor unit of the
refrigerant address “0”

EA error if 4 minutes have
passed since the power is
supplied.

; If there are 2 or more speci-

fied indoor unit, back to the
first step.

; Collecting the vane, louver

information and transmittance

<<Feature>>
A. Start-up time from the second time will be shorter since setting of the number of connected units is memorized once set.

Start-up time can be estimated as following;

•When installing ... 1~2 minutes (Depending the number of connecting units)

•Since the second time .... 20 seconds ~ 1 minute (Depending the number of connecting units)

w When the above processing does not finish, even if 4 minutes have passed, consider the processing an error and

Ea, Eb or Ec will be displayed.
However if power is not supplied to the indoor unit due to miss-wiring or looseness of the connecting lines
between the indoor and outdoor unit, there will be no display on the remote controller. Also when the data can not
be received from the outdoor unit, E6 is displayed on the remote controller after 6 minutes.

B. When replacing the p.c.board, only the unit number which has had it`s p.c.board replaced is reset.

Even if the power supply is reset, the unit number which has not had it`s replaced does not change.

C. Automatic set unit is possible to confirm by blinking the frequency of LED3 in the indoor controller board.

At intervals of approx. 3 seconds, the number of the unit-number blinks.(Example:The unit(unit number:2) blinks twice at
3-second intervals.

to the remote controller.

; Collecting the preceding oper-

ation setting information and
transmittance to the remote
controller.

EB error if 4 minutes have
passed since the power is
supplied.

EC error if 4 minutes have
passed since the power is
supplied.

50

Function/control specifications

Item

Fan

Up/down
auto vane

Left/right

Function / specification

swing louver

Drain pump

Number of fan speed
Drive method

Provided
Swing function
Shutter mechanism
Moter type

Provided
Moter type

4-way ceiling cassette

PLH-P•KAH(.UK)
PLA-P•KA(.UK)

Pulsation

(AC motor)

—

Timing

(220-240V AC)

—
—

4

PLH-P•AAH.UK
PLA-P•AA(.UK)

4

Pulsation

(AC motor)

Stepping

(12V DC)

—
—

1-way ceiling

cassette

PMH-P•BA

4

Sine wave drive

(DC motor)

Stepping

(12V DC)

—
—

suspended
PCH-P•GAH
PCA-P•GA

Phase control
(AC motor)

Stepping

(12V DC)

Note: The parts marked are optional.

Ceiling

4

—
—

Wall mounted

PKH-P•GALH
PKA-P•GAL

4

Phase control

(AC motor)

Stepping

(12V DC)

—
—

—

PKH-P•FALH
PKA-P•FAL

2

Phase control

(AC motor)

Stepping

(12V DC)

—
—

Floor

standing
PSH-P•GAH
PSA-P•GA

2

Tap-changing

(AC motor)

—
—
—

—

Timing

(220-240V AC)

—

concealed
PEHD-P•EAH.UK
PEAD-P•EA.UK

Tap-changing
(AC motor)

Ceiling

2

—
—
—

—

—
—

51

7

Control modes

Control details

1-1. Thermoregulating function (Function to prevent restarting for 3 minutes)

• Room temp. ] desired temp. +1:(w2)···Compressor ON

• Room temp. [ desired temp. ···Compressor OFF
Crankcase heater: OFF when compressor operates

ON when compressor stopped

(including when thermo is OFF)
Crankcase heater switches ON when 200V AC current is applied between
connectors CH 1 and 2 on the outdoor control p.c. board.

1-2. Anti-freezing control
Detected condition : When the liquid pipe temp. (TH2 ) or Condenser/
Evaporator temp. (TH5 ) (w3) is 2: or less (w4) in 16

minutes from compressors start up, anti-freezing control
starts and the compressor will be suspended.

Released condition : The timer which prevents reactivating is set for 3 minutes,
and anti- freezing control is cancelled when any one of the
following conditions is satisfied.
 1Liquid pipe temp. (TH2) and Condenser / Evaporator

temp (TH5) turn 10: or above.

 2The condition of the compressor stop has become

complete by thermoregulating, etc.

 3The operation modes became mode other than COOL.

4 The operation stopped.

1-3. Frozen protection
Detected condition : When the indoor pipe temp. (TH2 ) or Condenser/

Evaporator temp.

(TH5 ) continues -15: for 3 minutes since 3 minutes has

passed after the compressor start, the compressor stops
and then the mode changes to prevent restarting for 6
minutes.
After restarting of 6 minutes, when the indoor pipe temp.
(TH2) or Condenser / Evaporator temp. (TH5) continues -15
or less for three minutes again by the time 16 minutes have
passed, the frozen protection operates. (P6)

Released condition : When the operation stops by the remote controller operation.

By the remote controller setting (switch of 4 speeds or 2 speeds)
When determining the abnormality of the pipe temp. low speed fan is fixed.

2. Fan

1. Compressor

Remarks

Type

Fan speed notch

[Low] [Mid2] [Mid1] [High]

[Low] [High]

4 speeds type
2 speeds type

Refer to w3.
Refer to w4.

w1 The thermoregulating
function is provided in the
outdoor unit.

The indoor unit transmits
the indoor room temp. and
set temp. data to outdoor
unit, then the outdoor unit
controls thermoregulation.

w2 Can be set to 1,5 or
10: using function
selection mode 19.

INDOOR UNIT CONTROL

7-1. COOL operation

w3 Compare liquid pipe temperature to Condenser/ Evaporator temperature, and the lower one is applied to anti-freezing control.

• Liquid pipe temperature [ Condenser/ Evaporator temperature····· Liquid pipe

• Liquid pipe temperature > Condenser/ Evaporator temperature····· Condenser/ Evaporator pipe
w4 The function of remote controller can change the temperature to start anti-freezing control.

52

Control modes

3. Drain pump

Control details

3-1. Drain pump control

•Always drain pump ON during the COOL and DRY mode operation.
(Regardless of the compressor ON/ OFF)

•When the operation mode has changed from the COOL or DRY to the others
(including Stop), OFF the control after the drain pump ON for 3 minutes.

Drain sensor function

• Energize drain sensor at a fixed voltage for a fixed duration. After energizing,
compare the drain sensor’s temperature to the one before energizing, and judge
whether the sensor is in the air or in the water.

Remarks

✻1 Drain sensor
Indoor control
p.c. board
CN31

1

→

2
3

4. Vane
(up/ down vane change)

5. Louver
(Left / right change)

Basic control system

• While drain pump is turned on, repeat the following control system and judge
whether the sensor is in the air or in the water.

Timing of
energizing
drain sensor

ON

OFF

Stand by for
a minute

30 sec.

·······Repeat

30 sec.Stand by for

a minute

Detect the
temperature
before
energizing
(T0)

Detect the
temperature
after
energizing

Judge whether
the sensor is in
the air or in the
water.

(T1)

•Drain sensor temperature rise (∆t)

•Temperature of drain sensor before current is applied (T0)

•Temperature of drain sensor after current is applied (T

1)

[ ∆t = T1 – T0 ]

(1)Initial setting : Start at COOL mode and horizontal vane.
(2)Vane position : Horizontal →Downward A →Downward B →Downward C→Swing

→

(3)Detecting position (AC 200-240V timing motor)

Positioning the each vane as a basic position (horizontal or shutter) the starting
OFF → ON of the limited switch. When the basic position is not able to detect for
10 minutes, the vane will be stopped at that time. (vane swing motion for 10
minutes)

(4)Restriction of the downward vane setting

When setting the downward vane A, B and C in [Mid2] or [Low] of the fan speed
notch, the vane changes to horizontal position after 1 hour have passed.

By the remote controller setting

✻2 If the unit is
without the
drain sensor,
install the
jumper
connector.
Indoor control
p.c. board
CN31

1

→

2
3

When installing
the jumper
connector,
determine to
detect
compulsorily in
the air.

✻1 Whether the
unit has a swing
function is listed
in the function/
control specifications.

✻2 See the
function/control
specifications for
the vane motor
type.

"SET FOR 1 HOUR"

✻3
appears on the
wired remote
controller.

wModel which is
installed louver
function.

53

7-2. DRY operation

Control modes

Control details

1-1. Thermoregulating function (Function to prevent restarting for 3 minutes)
Setting the compressor operation time by the thermoregulating signal and the

room temperature (TH1).

Thermoregulating signal ON Room temp. ] desired temp. +1:
Thermoregulating signal OFF Room temp. [ desired temp.

1-2. Frozen prevention control

No control function

Indoor fan operation controlled depends on the compressor conditions.

3. Drain pump

1. Compressor

Remarks

✻1 The thermoregulating
function is provided in the
outdoor unit.

The indoor unit transmits the
indoor room temp. and set
temp. data to outdoor unit,
then the outdoor unit controls
thermoregulation.

Room temp.

3 min. passed since starting operation

Thermoregulating signal

Room temp. (T1)

Operating
time (min)

OFF time

(min)

Less than 18:

Over 18:

ON

OFF

T1 ] 28:
28: > T1 ] 26:
26: > T1 ] 24:

24: > T1

Unconditional

93
7

3

5

3

33

10

3

Compressor operation stop

1-3. Frozen protection

Same control as COOL operation

2. Fan

Note: Remote controller setting is not acceptable.

Compressor

2 speed

4 speed

ON

OFF

[Low]

[Low]

Stop(

✻2)

Stop(✻2)

✻1 Fan speed change Refer
to the table of the unit
function.
✻2 Note that even when the
compressor is OFF, 2-speed
models are set to [Low] and
4-speed models are set to
[Quiet] if the start condition
below is met.
Start condition: The piping
temperature (fluid piping or
2-phase piping) has fallen to
1

: or less.

Release condition: The
piping temperature (fluid
piping or 2-phase piping)
has returned to at least
10

:.

4. Vane
(up/ down vane change)

Same control as COOL operation

Same control as COOL operation

5. Louver
(Left/ right change)

Remote controller setting

✻1 Model which

is installed
louver function.

Control modes

Control details

None (always stopped)

Set by remote controller.

3. Drain pump

1. Compressor

Remarks

2. Fan

Number of fan speeds

Fan speed notches

4

2

[Quiet], [Low], [Mid], [High]

[Low]

[High]

4. Vane
(up/ down vane change)

3.1 Drain pump control
The drain pump turns ON for the specified amount of time when any of the following
conditions is met:
1 ON for 3 minutes after the operation mode is switched from COOL or DRY to

another operation mode (FAN).

2 ON for 6 minutes after the drain sensor is determined to be submerged using the

liquid level detection method given below.

3 ON for 6 minutes after indoor piping (liquid piping) temperature - indoor intake

temperature [ -10:, AND the drain sensor input is at the short or open level.
(If condition 2 or 3 is still being met after the drain pump has been turned ON for 6
minutes, the drain pump is kept ON for a further 6 minutes.)

3.2 Liquid level detection method
The liquid level is detected by determining whether or not the drain sensor is
submerged, based on the amount the temperature rises after self-heating the
sensor. This process is performed if any of the following conditions is met:

1 Drain pump is ON.
2 Indoor piping (liquid piping) temperature - indoor intake temperature [ -10:
3 Indoor piping (liquid piping) temperature or indoor intake temperature is at the

short or open level temperature.
4 Every hour after the drain pump has been switched from ON to OFF.

Same as the control performed during the COOL operation, but with no restriction
on the vane's downward blow setting.

7-3. FAN operation

54

7-4. HEAT operation

Control modes

Control details

1-1. Thermoregulating function (Function to prevent restarting for

3 minutes)

•Room temp. [ desired temp.-1: ···Compressor ON

•Room temp. ] desired temp. ···Compressor OFF

1-2. Over- rise protection control

Detected control : When Condenser/ Evaporator temp.
turns 74: or more, less than 90: after starting
compressor, stop the compressor, then the mode changes to
restarting compressor, stop the compressor, then the mode
changes to restarting protection mode after 6 minutes.
After restarting after 6 minutes when the Condenser/
Evaporator temp. became 74: or more, less than 90: by
the time 10 minutes pass, the mode changes to over-rise
protection control.
Release control : When the operation stops by the remote
controller.

1. Compressor

Remarks

✻1
The thermoregulating function is
provided in the outdoor unit.

The indoor unit transmits the indoor
room temp. and set temp. data to
outdoor unit, then the outdoor unit
controls thermoregulation.

2-1. Thermoregulating function

When the mode is not Hot adjust or Defrosting mode during
HEAT compressor operation, the controller changes to
auxiliary heater ON.
Thermoregulating function follows the below table with
according to desired temp. and room temp.

2.

Auxiliary heater

Temp. difference

Keeping condition

Auxiliary heater

z < 0

0 [ z < 3

OFF

3 [ z

ON

✻2 During the over-rise prevention

control, "Airflow increasing" in the
indoor fan is controlled.
( Only the model of fan 4-speed)

✻1 Models without auxiliary heater also
control the units in the same way as
shown in the left.

Temp. difference Z=Desired temp. - Room temp.

2-2. Over-rise prevention control

During the HEAT compressor operation, when the Condenser/
Evaporator temp. became 60: or more, over-rise prevention
control operates and the auxiliary heater prohibits for ON

operation. When the indoor Cond./Eva. temp. is 55: or less
during over-rise prevention, over-rise prevention control will
be released and auxiliary heater ON will be allowed.

55

Control modes

3. Fan

Control details

Controlled by the remote controller (4-speed or 2-speed)
Give priority to under-mentioned controlled mode
3-1. Hot adjuster mode
3-2. Preheating exclusion mode
3-3. Thermo OFF mode (When the compressor off by the

thermoregulating)
3-4. Cool air prevention mode (Defrosting mode)
3-5. Capacity increasing mode

3-1. Hot adjuster mode

The fan controller becomes the hot adjuster mode for the
following conditions.

1 When starting the HEAT operation
2 When starting the compressor by the thermoregulating
3 When release the HEAT defrosting operation

Hot adjuster mode ✻1

Set fan speed by the remote controller

[Low]✻2

[Extra Low]

Remarks

✻1
Fan speed change notch
Refer to the model function table

✻1 "STAND BY" will be displayed

during the hot adjuster mode.

✻2 Unit, which has two levels of fan

speed, operates at "Low."

A

CB

A: HOT adjuster mode start
B: 5 min have passed since the condition A or the indoor

Condenser/ Evaporator temp. turned 35: or more

C: 2 min have passed since the condition A

(Terminating the hot adjuster mode)

3-2. Preheating exclusion mode

When the condition changes the auxiliary heater ON to OFF
(thermoregulating or operation stop, etc), the indoor fan
operates in [Low] mode for 1 minute.

3-3. Thermo OFF mode

When the compressor stops by the thermoregulating, etc., the
indoor fan operates in [Extra low].

3-4. Cool air prevention mode (Heat defrosting mode)
After "not adjustment" mode is finished, the indoor fan will
stop if 1 or 2 mentioned below is detected.

When receiving "DEFROST" from the outdoor unit, the mode
changes to defrosting mode.

Pipe temp. (Condenser/ Evaporator) - Room temp. [ -5deg

-5deg < pipe temp. (Condenser/ Evaporator) - Room temp. [ 5deg
5deg < pipe temp. (Condenser/ Evaporator) - Room temp.

3-5. Fan speed up mode

•When the control changes to over-rise prevention.
The condition of over-rise prevention (Prohibit for auxiliary
heater ON) continues for 3 minutes or more and the set fan
speed is [Low] or [Mid2], the fan speed changes to [Mid1].

•When the control changes to over-rise prevention during the
heater OFF, the mode changes to capacity increasing mode
immediately.
The capacity increasing mode is canceled by canceling the
over-rise prevention mode.

✻1 This control is same for the model

without auxiliary heater.

✻2 Unit, which has two levels of fan

speed, operates at "Low."

✻1 Fan's airflow volume, when thermostat

is OFF, can be changed by selecting the
function of remote controller.

✻1 "DEFROST "will be displayed on the

remote controller during the defrost
operation.

···

1

···

2

···

3

✻1 This control is applied for only 4-

speed model.

56

Control modes

4. Drain pump

5. Vane control
(Up/ down vane
change)

6. Louver
(Left/ right vane)

Control details

No drain pump operation
However, when the control changes from COOL or DRY
operation, the drain pump operates for 3 minutes.

(1) Initial setting : OFF → HEAT···[last setting]

When changing the mode from exception of HEAT
to HEAT operation. ···[Downward C]

(2) Air flow direction

[Horizontal]→[Downward A]→Downward B]→Downward C]→[Swing]

(3) Determining position (When the timing motor of AC 200-240V)

Control each air outlet angle considering the starting OFF →
ON of limit switch to be a standard position (Horizontal or
shutter).
When the standard position can not be determined for 10

minutes, the vane stops at the arbitrary position.
(Vane swing motion for 10 minutes)
(4) Restriction of vane position
1 The vane is horizontally fixed for the following modes.

(The control by the remote controller is temporally invalidated
and control by the unit.)

•Compressor OFF mode (Thermoregulating, etc.)

•Hot adjuster [Extra low] mode

•Cool prevention mode (Determining except for Heat area)

•Heat defrost mode

•Piping (Condenser/ Evaporator) temperature is 37: or less.
2 Short cycle protection (Only model PLH-P1.6, 2, 2.5KAH
PLA-P1.6, 2, 2.5KA PLH-P•KAH.UK PLA-P•KA.UK
supports this control mode.)

If the short cycle status was detected by the vane setting
(downward blow C), the vane angle (downward blow B) is
restricted for short cycle protection. This control mode only
changes the vane angle. No subsequent control is
performed. The remote controller display doesn't change.

Setting by the remote controller

Remarks

✻1 Whether the unit has a swing

function is listed in the
function/control specifications.

✻ See the function/control

specifications for the vane motor
type.

✻

Unit is under “heating,” “hot adjustment,”
and “Compressor ON” mode, and is
set to “Low,” the intake temperature
has risen by over 7:.

✻1 Model which is installed louver

function.
Refer to the table of the unit function.

7-5. AUTO operation

Control modes

1. Initial value of
operation mode

2. Mode change

3. COOL mode

4. HEAT mode

HEAT mode for room temp. < Desired temp.
COOL mode for room temp. ] Desired temp.

(1) HEAT mode → COOL mode

Room temp. ] Desired temp. + 2deg. or 15 min. has passed

(2) COOL mode → HEAT mode

Room temp. [ Desired temp. - 2deg. or 15 min. has passed
Same control as cool operation
Same control as heat operation

Control details

7-6. When unit is stopped Control mode

Control modes

1. Drain pump

1.1 Drain pump control
The drain pump turns ON for the specified amount of time when
any of the following conditions is met (regardless of whether the
compressor is ON or OFF)

1 ON for 3 minutes after the operation mode is switched from COOL

or DRY to another operation mode (HEAT mode).

2 ON for 6 minutes after the drain sensor is determined to be

submerged using the liquid level detection method given below.

3 ON for 6 minutes after indoor piping (liquid piping) temperature

- indoor intake temperature [ -10deg, AND the drain sensor input is

at the short or open level.
(If condition 2 or 3 is still being met after the drain pump has
been turned ON for 6 minutes, the drain pump is kept ON for a
further 6 minutes.)

1.2 Liquid level detection method
The liquid level is detected by determining whether or not the drain
sensor is submerged, based on the amount the temperature rises
after self-heating the sensor. This process is performed if any of the
following conditions is met:

1 Drain pump is ON.

Indoor piping (liquid piping) temperature - indoor intake temperature [ -10deg

2

(except during defrosting)

3 Indoor piping (liquid piping) temperature or indoor intake temperature

is at the short or open level temperature.

4 Every hour after the drain pump has been switched from ON to OFF.

Control details

Remarks

This mode is provide in the outdoor unit.

✻

The indoor unit follows the instruction
from the outdoor unit.

This mode is provide in the outdoor unit.

✻

The indoor unit follows the instruction
from the outdoor unit.

Remarks

57

7-8. TIMER operation

C3 12

A

B cD

PAR-20MAA

ON/OFF

CENTRALLY CONTROLLED

ERROR CODE

CLOCK

ON OFF

˚C

CHECK

CHECK MODE

FILTER

TEST RUN
FUNCTION

˚C

1Hr.

NOT AVAILABLE

STAND BY
DEFROST

FILTER

CHECK TEST

TEMP.

TIMER SET

C

D

3

21

ABc

Available Timer-Interlocked Operation Modes

1. AUTO START/STOP:Allows both start and shutdown to be interlocked
with the timer.

2. AUTO START: Allows automatic start in response to the timer setting
and shutdown to be proceeded by manually pressing the ON/OFF but­ton.

3. AUTO STOP: Allows the start of the operation to be manually invoked
by pressing the ON/OFF button and automatic shutdown based on the
timer setting.

Timer-interlocked operation is available only once for both start
and shutdown in 24 hours.
While D w is displayed, setting and changing of time for timer-

interlocked operation is disabled.

In this case, press 3 button once to turn off the D w display on

the remote controller. This is referred to as TIMER OFF operation.

1) Set the current time

1-1) Press the 1 button and “CLOCK” A will be displayed.
1-2) Press the 2 button once to advance the current time by one.

Press the 2 button once to set back the current time by one.

• Press and hold down either button to fast-forward (-reverse) the time
setting.

• The display will disappear from about 10 seconds after the setting
has been entered.

2) Set the time to start the unit as follows

2-1) Press the 1 button and B will be displayed.

ON

2-2) Press the 2 button to set the current time.
2-3) The --:-- field C will be displayed.

The --:-- field C will display a range of time between 23:50 and 00:00.

2-4) Press the 3 button and D will be displayed.

3) Set time to stop the unit as follows

3-1) Press the 1 button and C will be displayed.

OFF

3-2) Press the 2 button to set the current time.
3-3) Set the automatic shutdown timer in the --:-- B display.
3-4) Press the 3 button and D will be displayed.

4) Changing the set times

• Enter a start time/shutdown time.

• Press the 3 button and D will be displayed.

5) Cancelling the set times

• Press the 3 button to clear the remote controller`s display.

Note:
When the air conditioner is operated or is turned off after the timer
setting has finished, the unit will automatically run without interrup­tion the next time it is operated.

58

OUTDOOR UNIT CONTROL8

3 minutes

or more

Indoor unit

Frost prevention
Normal

ON
OFF

Compressor

Temperature adjustment decides

as to whether compressor stops.

Fan’s
output
step

TH6 [˚C]

TH6<0

0[TH6<8

8[TH6

9
11
14

Opening at upper and lower limit

P1
P1.6
P2
P2.5

500
600
700
800

330
360
240
300

P3
P4
P5
P6

800
1500
1200
1500

330
440
540
550

Model Upper limit Lower limit Upper limit Lower limitModel

8-1. COOL operation

Control mode

mode Function

Compressor

Thermostat

Indoor frost pre­vention

Thermostat starts or stops by the signal of the set temperature and room
temperature from the indoor unit.
(Detecting method depends on indoor unit.)

[Operating condition]

When there is at least 1 indoor unit which has changed to frost prevention
mode, the compressor will stop. After stop the compressor when the frost
prevention mode is released, the compressor will restart.

[Time chart]

RemarksControl

The condition
that prevents
indoor unit from
freezing up is
subject to the
operational con­dition of indoor
unit.

Outdoor
fan control

LEV control

Desired
condensing
temperature

Normal

Others

Normal control

By means of outdoor Condenser/ Evaporator temperature thermistor
(TH6), adjust the condensing temperature at 30-40:. When anti-freezing

control is reactivated, however, adjust the condensing temperature at 40­45:.

Outdoor fan rotation frequency depends on the outdoor condenser temper­ature (TH6)

• Rotation frequency control : Pulsation control

• Rotation frequency : Output step N=0, 6~15 (Output voltage=0~230V)

• Condenser temperature range: 20˚C ~ 50˚C

• Compressor starting :When the compressor restarting, the outdoor fan is
locked for 2 minutes of initial step.

1Outdoor fan stops (Output step=0) during the compressor OFF.
2When compressor started operating, fix the initial step for two minutes.
3When the SW5-1 in the outdoor controller p.c.board set to ON, the outdoor

fan output is always locked to 16. (100% output)

LEV opening should be controlled to become the SC level of the target at
regular intervals, according to the detection temperature of thermistors
installed in the heat exchanger of the condenser.

W The target, SC level is different according to the capacity, the type of

the indoor unit, and the operating state. (Normal: 4~10˚C)

W The SC level are calculated as follows;

COOL : TH6–TH3

Target control
Temperature

30°C~40°C

Unit is controlled at one-minute intervals.
Desired subcooling degree: 4-10˚C (It depends on each model and the
operating condition.)
Pulse width: ±30 pulse at the maximum

59

Control mode

4-way valve

HEAT COOL

ON
OFF

ON
OFF

Compressor

Opening in the startup (Normal operation)

P1
P1.6
P2
P2.5

500
600
500
600

500
600
500
600

P3
P4
P5
P6

800

800
1000
1200

600

600
1000
1200

Model

1 min. from startup

1-3 min.

1 min. from startup

1-3 min.Model

mode Function

LEV control

Fixed control

RemarksControl

Under one of the following conditions, the LEV opening is fixed during the
fixed time.
1 When the compressor stops.

The LEV opening is determined with the unit operating state before the
compressor stops and the capacity.

2 When the compressor starts.

The LEV opening is determined by the operating state, the ambient
temperature, and the capacity.

3 When detecting temperature-rise over.

When detecting over rise of the condensing temperature and the dis­charging temperature because of an increase in the load etc. during
operation.
The LEV opening is different according to the operating state and the
capacity.

W Detecting the condensing temperature COOL : TH6
W Detecting the discharging temperature COOL/HEAT : TH4

The opening is fixed for three minutes from the startup.

4-way valve

Normal operating
Operation mode

change

Bypass valve
(For PUH­P5,6YGA)

8-2. DRY operation

Control mode

Mode Function

Compressor

Thermostat

Indoor frost
prevention

Always OFF during normal operation
When the mode changes HEAT➔ COOL

Always OFF during cooling

RemarksControl

The outdoor unit receives the setting temperature and the suction
temperature from the indoor unit by communication and judges by the
temperature difference between the setting temperature and the suction
temperature .
(The judgement method depends on the operation of the indoor unit .)

Not available

w Other actuator control is same as the control in the cooling mode.

60

8-3. HEAT operation

3 minutes

or more

Indoor unit

Frost prevention
Normal

ON
OFF

Compressor

Fan’s
output
step

TH3 [˚C]

TH3<10

10[TH3<8

18[TH3

14

9

Lower limit

Opening at upper and lower limit

P1
P1.6
P2
P2.5

500
600

1000

800

300
330
300
280

P3
P4
P5
P6

800
1500
1200
1500

320
420
450
490

Model Upper limit Lower limit Upper limit Lower limitModel

StepModel

P1

P1.6

P2

P2.5

P3
P4
P5
P6

3
3
3
3
3
3
1
1

Control mode

Mode Function

Compressor

Thermostat

Indoor frost pre­vention

RemarksControl

Thermostat starts or stops by the signal of the set temperature and room
temperature from the indoor unit.
(Detecting method depends on indoor unit.)

[Operating condition]

When there is at least 1 indoor unit which has changed to frost prevention
mode, the compressor will stop. After stop the compressor when the frost
prevention mode is released, the compressor will restart.

[Time chart]

Outdoor
fan control

Normal

Others

Outdoor fan rotation frequency depends on the evaporating temperature
(TH3).

• Rotation frequency control : Pulsation control

• Rotation frequency : Output step N=1~15 (Output voltage=0~230V)

• Evaporating temperature range: –5 ~ 15˚C

• Compressor starting :When the compressor starting, the outdoor fan is
locked for 2 minutes of initial step.

1Outdoor fan stops (output step = 0) during the suspension of compressor

or defrosting.

2When the SW5-1 in the outdoor controller p.c.board set to ON, the outdoor

fan output is always locked to 16 (100% output).

Target control
Temperature

5~10°C

Refer to page 63
for defrosting.

Note1: Refer to
the table below
for lower limit of
output step.

LEV control

Normal control

LEV opening should be controlled to become the SC level of the target at
regular intervals, according to the detection temperature of thermistors
installed in the heat exchanger of the condenser.

W The target, SC level is different according to the capacity, the type of

the indoor unit, and the operating state. (Normal: 4~10˚C)

W The SC level are calculated as follows;

HEAT : TH5–TH2

Unit is controlled at one-minute intervals.
Desired subcooling degree: 4-10˚C (It depends on each model and the
operating condition.)
Pulse width: ±30 pulse at the maximum

61

Control mode

model

PUH–P5YGA

–P6YGA

CTa [˚C]

55
55

Tda [˚C]

95
95

CTa : Condensing temperature
Tda : Discharge temperature

4-way valve

HEAT COOL

ON
OFF

ON
OFF

Compressor

4-way valve

10 minutes

ON
OFF

Heat
OFF

Operation mode

Opening in the startup (Normal operation)

P1
P1.6
P2
P2.5

500
600
500
600

500
600
500
600

P3
P4
P5
P6

800

800
1000
1500

600

600
1000
1500

Model

1 min. from startup

1-3 min.

1 min. from startup

1-3 min.Model

Mode Function

LEV control

Fixed control

RemarksControl

When becoming to be the following, the LEV opening is fixed during the fixed time.
1 When the compressor stops.

The LEV opening is determined with the unit operating state before the compressor stops
and the capacity.

2 When the compressor starts.

The LEV opening is determined by the operating state, the temperature of the ambient air,
and the capacity.

3 When detecting temperature-rise over.

When detecting over rise of the condensing temperature and the discharging temperature
because of an increase in the load etc. during operation.
The LEV opening is different according to the operating state and the capacity.

W Detecting the condensing temperature HEAT : TH5
W Detecting the discharging temperature COOL/HEAT : TH4

4 Defrosting

When defrosting, the LEV opening is fixed. Also the opening is different according to the
capacity.
W Detecting the defrosting : TH3

The opening is fixed for three minutes from the startup.

Bypass
valve control
Only PUH–
P5,6YGA

4-way valve
control

ON/OFF
condition

Normal operating
Operation mode

change

ON condition

• Start up at outdoor piping temperature (TH3)
]12˚C, after resetting or since 30 minutes has
passed after the compressor OFF.

• Start up at room temperature (TH1) ] 22˚C.

• When the following abnormalities are detected
during the heat compressor operation.

1Abnormal discharging temperature (U2)
2Abnormal high pressure (U1)
3Breaking of the compressor over current

(lock)(UF)

4Breaking of the compressor over current (U6)

• When either below 1 or 2 is satisfied during the
heat compressor operation.

1Indoor Cond./Eva. temperature (TH5)]CTa+2˚C
2Discharge temperature (TH4)]Tda+15˚C

•When restarting within 30 minutes since the heat
compressor stops, the solenoid valve (SV) is
ON at the compressor OFF.

OFF ordinary during normal operation

• When the mode changes HEAT➔ COOL.

• When the mode changes HEAT➔ OFF.

OFF condition
When “Indoor condenser temperature
(TH5) [ 54˚C” or “Outdoor discharging
temperature (TH4) [ 105˚C” since 15
minutes has passed after the solenoid
valve ON.

Defrosting

OFF ordinary during defrosting.

62

4-way valve

4-way valve

1 min.

ON
OFF

ON
OFF

Compressor

Outdoor unit
Pipe temperature
(TH3)

Power supply is turned on

-5; or less -5; or less

1 min.

30 min.

or more

control

8-4. Defrosting operation

Start

Stop

Actuator Compressor

Control mode

Mode Function

Start-up when
outside temper­ature is low

Control

Condition Control name

Fan
4-way valve
Bypass solenoid

valve

Operation time
chart

It takes compressor one minute to restart its operation under one of the fol­lowing circumstances: 1The power supply has been turned on (reset).
2Over 30 minutes have passed since compressor stops, and the pipe
temperature of outdoor unit (TH3) is -5; or below.

Defrosting starts when either of below item is satisfied.

1.When the compressor integrating operation time fulfils defrosting time
and when the present outdoor fan step is rated step (15) and the out­door piping temperature (TH3) is –5˚C or below after 12 minutes have
passed since the compressor start.

2.When the compressor integrating operation time fulfils defrosting time
and when the present outdoor fan step is rated step (15) and the out­door piping temperature (TH3) is –5˚C or below after 2 minutes have
passed since the compressor start and after reading thermostat OFF/ON
3 times more by the indoor unit room or set temperature.

3.When the compressor integrating operation time is 30 minutes more and
when the outdoor piping temperature (TH3) fulfils below formula, the
present outdoor fan step is rated step (15) and the outdoor piping tem­perature (TH3) is –5˚C or below after 12 minutes have passed since the
compressor start.
[Formula]

Te=Te10–Te]7°C
Te10 : Coil thermistor temp. (TH3) when 10 minutes have passed

since the compressor start.

Te : Current coil thermistor temp. (TH3)

Defrosting stops when either of below item is satisfied.

1.When the outdoor piping temperature (TH3) is 22˚C or more within 75
seconds since the defrosting operation starts.

2.When the outdoor piping temperature (TH3) is 13˚C or more after 75
seconds have passed since the defrosting operation starts.

3.When 15 minutes have passed since the defrosting operation starts.

4.When the outdoor unit functions and stops abnormally during defrosting.

Operating except for the following

1.When the outdoor unit reads abnormality.

Stop ordinarily
OFF ordinarily
OFF ordinarily except for the following.

1.U6 (When reading the [Breaking of the compressor over current])

2.UF (When reading the [Breaking of the compressor over current] (lock)

3.U2 (Abnormal discharge temperature)

4.U1 (Abnormal high pressure)

Fan

ON
OFF

ON
OFF

ON
OFF

ON
OFF

defrosting

start

defrosting

terminate

defrosting

start

defrosting

terminate

4-way valve

Solenoid

valve

Compressor

63

RemarksControl

RemarksOperation

The indoor unit
starts defrosting
operation when
the defrosting
signal is trans­mitted with
simultaneous
defrosting oper­ation from the
outdoor unit.

8-4. Defrosting operation

Control

Condition Control name

Prohibit
defrosting

Forced
defrosting

Start condition

End condition

Interval to next defrosting are determined depending the defrosting time.

1.When defrosting control mode [STANDARD]
Defrosting operation time Interval to the next defrosting

3 minutes or below 120 minutes
3 to 7 minutes 80 minutes
7 to 10 minutes 60 minutes
10 to 15 minutes 40 minutes
15 minutes (Maximum) 30 minutes

2.When defrosting control mode [High humidity region]
Defrosting operation time Interval to the next defrosting

7 minutes or below 60 minutes
7 to 15 minutes 30 minutes

Forced defrosting starts if all of conditions 1 through 3 below are met
when the unit detects that switch SW1-1 has been turned from OFF to ON
during operation in HEAT mode.
Conditions:

1 Compressor is operating.
2 Setting of self-diagnosis display switch (SW2) is "OUTDOOR LIQUID

PIPING TEMPERATURE".

3 Temperature detected by outdoor piping sensor (TH3) is less than 8;.
(Same as end condition above.)

RemarksOperation

(Note 1)
Defrosting mode
is changeable by
the remote con­troller.

(Note 2)
When not setting
the remote con­troller, the mode
is set to STAN­DARD.

8-5. AUTO operation

Control

Condition

Initial opera­tion mode

Operation
mode change

COOL mode
HEAT mode

Control name

RemarksOperation

Given in description of indoor unit operation.

Given in description of indoor unit operation.

Same as for COOL operation.
Same as for HEAT operation and DEFROST operation.

64

9

PKH–P·GALH / PKA-P·GAL
PKH–P·FALH / PKA-P·FAL
PCH–P·GAH / PCA-P·GA
PLH–P·KAH / PLA-P·KA
PLH–P·AAH / PLA-P·AA
PMH–P·BA

PSH–P·GAH / PSA-P·GA

J11~J15 (SW1) ; Unit setting
J21~J24 (SW2) ; Capacity setting

Applicable units

;Changeable function
;Not changeable function

INDOOR CONTROLLER BOARD

type Btype A

J11~J15

(SW1)

PKH–P2.5, 3, 4FALH / PKA–P2.5, 3, 4FAL
PCH–P2, 2.5, 3, 4, 5, 6GAH / PCA–P2, 2.5, 3, 4, 5, 6GA
PLA–P1.6, 2, 2.5KA
PLA–P3, 4, 5, 6KA
PLH–P3, 4, 5, 6KAH
PLH–P1.6, 2, 2.5KAH
PKH–P1.6, 2GALH / PKA–P1.6, 2GAL
PLA–P3, 4, 5, 6AA
PLH–P3, 4, 5, 6AAH
PMH–P1, 1.6, 2BA, BA1
PMH–P1, 1.6, 2BA2

Models

J11~J15 (SW1)

type AFunction

Model
settings

Capacity
settings

Pair number
setting with
wireless remote
controller

J11 J12 J13 J14 J15

PSH–P·GAH / PSA–P·GA

Models

J11~J15 (SW1)

type B

J11 J12 J13 J14 J15

J21~J24

(SW2)

J41
J42

P1
P1.6
P2
P2.5
P3
P4
P5
P6

Models

J21~J24 (SW2)

In above table Jumper connector: Short, Open
Note 1: If the settings of SW1 (model settings) or SW2 (capacity settings) on the service PCB are made incorrectly:

•If the SW1 settings are made incorrectly, the unit will not operate, or won't be able to operate normally.

•The SW1 (model) and SW2 (capacity) settings are used to send the indoor unit's model and capacity
information to the outdoor unit. The outdoor unit uses this information to perform control, so the expected
performance may not be achieved if the information is incorrect.

•In models with indoor fan phase control, pulsation control or DC fan control, the SW2 (capacity) settings are
used to control the fan air volume. If the settings are made incorrectly, the air volume may be higher or lower
than expected, performance may drop, or the noise level may increase.

J21 J22 J23 J24

0
1
2

3 ~ 9

Wireless remote
controller setting

Control PCB setting

J41 J42

P1
P1.6
P2
P2.5
P3
P4
P5
P6

Models

SW2

1
ON
ON
ON
ON
ON

OFF
OFF

ON

2

OFF

ON

OFF

ON
OFF
OFF

ON

ON

3
OFF
OFF

ON
ON

OFF

ON
ON
ON

4
OFF
OFF
OFF
OFF

ON
ON
ON
ON

Service PCB

<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.)

DIP SWITCH FUNCTION

9-1. Indoor unit

DIP switch and jumper connector functions.
Each function is controlled by the jumper connector in the control p.c.board. Below table shows that the function setting by the
jumper connector is available or not in the control p.c.board of applicable units. Also J11~15 (SW1) and J21~24 (SW2) has Dip
switch with their jumper connector.

Functions and signification of the jumper connector (Dip switch)

65

Switch

Signal

SW1

SW2

1
2

No.

Function Effective timing

Action by the switch operation

Compulsory defrosting w1 Start Normal Heat compressor operating

~

3
6

~

1
6

Abnormal history clear

Refrigerant address setting When power supply ON

Self diagnosis off or operating

Clear Normal off or operating

SW4 1

2

Trial run ON/OFF ON OFF

OFF

Trial run mode setting Heat Cool

SW5 1

2

Fan 100% fix 100% fix Normal

Outdoor LEV opening fix w2 Fix Normal
3
4

No function No function No function
No function No function No function

off or operating
off or operating

–
–

ON OFF

123

0123

456ON123456ON123456ON123456

ON

123

4567

456ON123456ON123456ON123456

ON

123

891011

456ON123456ON123456ON123456

ON

123

12 13 14 15

456ON123456ON123456ON123456

ON

Refer to 6-2-3

Refer to 6-2-3

9-2. Outdoor unit

9-2-1. Standard control board & Service control board

PUH-P1.6, P2, P2.5, P3VGA PUH-P1.6, P2, P2.5, P3, P4, P5, P6YGA
PU-P1.6, P2, P2.5, P3VGA PU-P3, P4, P5, P6YGA

● Outdoor switch for a new freon function table

w1 Compulsory defrosting should be done as follows.

1Change to ON (coil thermistor indication) the DIP SW2-1 in the outdoor p.c.board.
2Change the DIP SW1-1 in the outdoor p.c.board OFF➔ ON (compulsory defrosting start).

According to the 1 and 2 operation,

• Heat mode setting • Compressor operating • The defrosting starts when the piping temperature is 8˚C and below.

• When the stated condition is satisfied, the defrosting operation will be completed.

w2 Ignore the change of LEV opening by change of subcooling, the opening is fixed on the position of DIP SW 5-2.

When air conditioner is overloaded for some reasons, LEV opening varies in accordance with overload condition.
(Normal LEV control system changes the opening regularly so that the degree of subcooling will remain constant.

Fixed opening is different between cooling operation and heating operation. Refer to page 59-62 for further details.)

66

● Jumper connector function table

Switch

Signal

J1

J2

J3

J4

J5

J6

CN31

No.

Function Effective timing

Action by the switch operation

Switch of single phase and

3 phase power supply

Switch of cooling

only/cooling and heat pump

When power supply ON

When power supply ON

Single phase3 phase

When power supply ON

Cooling and heat pumpCooling only

Capacity switch

Emergency operation Emergency operation Normal When power supply ON

ON OFF

Model

Setting

J3 J4 J5 J6

:Short :Open

P1
P1.6
P2
P2.5
P3
P4
P5
P6

Dip
Switch

1

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

No.

Function Effective timing

Action by the switch operation

Switching the display of
M-NET/Communications
among boards

AlwaysM-NET communication

Communication among boards

(serial communication)

No function
No function
No function

M-NET address No.

SW11(Unit's place)

SW12(Ten's place)

Under suspension

ON OFF

<Example of arrangement>

M-NET address No.

12

~

Arrangement
of switches

1

2

3

4

5

6

7

8

9

0

1

2

3

4

5

6

7

8

9

0

1

2

3

4

5

6

7

8

9

0

1

2

3

4

5

6

7

8

9

0

1

2

3

4

5

6

7

8

9

0

1

2

3

4

5

6

7

8

9

0

50

SW11

(Unit's place)

SW12

(Ten's place)

Switch

SW1

SW11
SW12

Rotary
Switch

Type of
Switch

—
—
—

—
—
—

—
—
—

● Function of switches on M-NET board

67

Switch

Signal

SW1 1

2

No.

Function Effective timing

Action by the switch operation

Compulsory defrosting w1 Start Normal Heat compressor operating

~

3
6

Abnormal history clear

Refrigerant address setting When power supply ON

Clear Normal off or operating

SW4 1

2

Trial run ON/OFF ON OFF

OFF

Trial run mode setting Heat Cool

SW5 1

2

Fan 100% fix 100% fix Normal

Outdoor LEV opening fix w2 Fix Normal
3
4

No function No function No function
No function No function No function

off or operating
off or operating

–
–

ON OFF

123

0123

456ON123456ON123456ON123456

ON

123

4567

456ON123456ON123456ON123456

ON

123

891011

456ON123456ON123456ON123456

ON

123

12 13 14 15

456ON123456ON123456ON123456

ON

9-2-2. Standard control board & Service control board

PUH-P1, P1.6, P2, P2.5, P3V, P4VGAA.UK PUH-P1.6, P2, P2.5, P3, P4, P5, P6YGAA.UK
PU-P1.6, P2, P2.5, P3V, P4VGAA.UK PU-P1.6, P2, P2.5, P3, P4, P5, P6YGAA.UK

● Outdoor switch for a new freon function table

w1 Compulsory defrosting should be done as follows.

1Change the DIP SW1-1 in the outdoor p.c.board OFF➔ ON (compulsory defrosting start).
According to the 1 operation,

• Heat mode setting • Compressor operating • The defrosting starts when the piping temperature is 8˚C and below.

• When the stated condition is satisfied, the defrosting operation will be completed.

w2 Ignore the change of LEV opening, which is subject to change of subcooling, and fix DIP SW 5-2 in the on position. Then

LEV opening is fixed. When air conditioner is overloaded for some reasons, ignore the change of subcooling and adjust the
LEV opening in accordance with overload condition.
(Normal LEV control system changes the opening regularly so that the degree of subcooling will remain constant.

Fixed opening is different between cooling operation and heating operation. Refer to page 59-62 for further details.)

68

Switch

Signal

SW2

No.

Function Effective timing

Action by the switch operation

~

1
5

Self diagnosis off or operating

SW3

6
1

--­Under suspension

Fixing the selected mode

(Not applicable)

Fixing the mode Normal

ON OFF

Refer to 6-2-3

Refer to 6-2-3

-

● Jumper connector function table

Switch

Signal

J1

J2

J3

J4

J5

J6

CN31

No.

Function Effective timing

Action by the switch operation

Switch of single phase and

3 phase power supply

Switch of cooling

only/cooling and heat pump

When power supply ON

When power supply ON

Single phase3 phase

When power supply ON

Cooling and heat pumpCooling only

Capacity switch

Emergency operation Emergency operation Normal When power supply ON

ON OFF

Model

Setting

J3 J4 J5 J6

:Short :Open

P1
P1.6
P2
P2.5
P3
P4
P5
P6

9-2-3. Optional parts

A-control Service Tool [ PAC-SK52ST ]

● Function of switches

Note : Do not use CN33.

69

● Outdoor unit operation monitor function

1ON23456

1ON23456

1 second

interval

Display Operation mode

The tens digit : Operation mode The units digit : Relay output

O
C
H

d

Display

0
1
2
3
4
5
6
7

Compressor 4-way valve

Bypass solenoid valve

—
—
—

—
ON
ON
ON
ON

—

—
ON
ON

—

—
ON
ON

—

ON

—

ON

—

ON

—

ON

OFF

COOL

HEAT

DEFROSTING

Display

Inspection unit
0
1
2
3
4

Outdoor unit

Indoor unit 1

Indoor unit 2

Indoor unit 3

Indoor unit 4

1 second

interval

<Abnormal unit number> <Abnormal code>

Operation indicator SW2 : Indicator change of self diagnosis

SW2 setting

<Digital indicator LED1 working details>

· Lighting (Normal operation) : Indicating the operation mode.

(Be sure the 1 to 6 in the SW2 are set to OFF)

(1) Display when the power supply ON.

When the power supply ON, blinking displays by turns.
Wait for 4 minutes at the longest.

(2) When the display lights. (Normal operation)

1Operation mode display.

Display detail

(Lighting)

LED1

Explanation for display Unit

Code

indication

SW2

(Initial setting)

2Error postponing display

(Compressor stop by the protection device

working) : Display the postponement code.

Postponement code is display during the error

postponing.

(3) When the display blinks (Operation stop by the protection device working) : Display the inspection code.

An error unit number and code are displayed by turns.

· Refer to the “9-3 (1) Error code list” for the code details.
(4) When 7SEG display lights up (Protective device stops compressor operating.):

The screen displays the corresponding code when abnormality is being recorded.

70

SW2 setting

1ON23456

1ON23456

1ON23456

1ON23456

1ON23456
1ON23456

1ON23456

1ON23456

1ON23456

1ON23456

Display detail

Piping temperature. (TH3)
– 40~90

Explanation for display Unit

– 40~90
(When the coil thermistor is 0:or below, “–” and

temperature displays by turns.)
(Example) When -10:

One second interval
– 10

:

Discharge temperature. (TH4)
0~216

FAN output step.
0~16

The number of ON / OFF times.
0~9999

Compressor integrating operation times.
0~9999

0~216
(When the discharge thermistor is 100 or more, the

hundreds digit and tens, units digit are displayed by
turns.)

(Example) When 150:

One second interval
1 50

0~16

0~9999
(When the number of times is 100 or more, the

hundreds digit and tens, units digit are displayed by
turns.)

(Example) When 42500 times

One second interval
4 25

0~9999
(When the time is 100 or more, the hundreds digit

and tens, units digit are displayed by turns.)

(Example) When 2450 hours

One second interval
2 45

:

Step

100 times

10 hours

Compressor operating current.

0~40

0~40

LEV opening.
0~440

Output pulse is displayed by one fifth of actual value.
(Example) When the display shows 300

300 ✕ 5 = 1500 pulse

1500 pulse is the actual output pulse

New error postponement code.

No postponement code is “00”.
New outdoor unit error postponement
display.

Operation mode on error occurring. Operation mode on error stop.

SW2 setting is displayed at below code.

(SW2)

A

Pulse

Code

display

Code

display

71

SW2 setting

1ON23456

1ON23456

1ON23456

1ON23456

1ON23456

1ON23456

1ON23456

Display detail

Piping temperature (TH3) on error
occurring
– 40~90

Explanation for display Unit

– 40~90
(When the coil thermistor is 0:and less, “–” and

temperature are displayed by turns)

(Example) When –15:

One second interval
– 15

:

Compressor temperature (TH4) or
discharge temperature (TH4) on error
occurring.
0~216

Compressor operating current on error
occurring.
0~40

Error code history (1) (latest)
Alternate display of abnormal unit
number and code.

Error code history (2)
Alternate display of error unit number
and code.

0~216
(When the temperature is 100 or more, the hundreds

digit and tens, units digit are displayed by turns.)

(Example) When 130:

One second interval
1 30

0~40

When no error history,
“ 0 ” and “– –” and displayed by turns.

When no error history,
“ 0 ” and “– –” and displayed by turns.

:

A

Code

display

Code

display

Thermistor ON time .
0~999

Trial run elapsed time.
0~120

The number of connected indoor unit.
0~4

0~999
(When the time is 100 or more, the hundreds digit

and tens, units digit are displayed by turns.)

(Example) When 245 minutes

One second interval
2 45

0~120
(When the time is 100 or more, the hundreds digit

and tens, units digit are displayed by turns.)

(Example) When 105 minutes

One second interval
1 05

0~4

Minute

Minute

Unit

72

SW2 setting

1ON23456

1ON23456

1ON23456

1ON23456

1ON23456

Capacity

P1

P1.6

P2

P2.5

P3
P4
P5
P6

Code

6

9
10
11
14
20
25
28

Setting details

●

The tens digit (Total display for applied setting)

● The units digit

H·P /

Cooling only

Single phase / Three phase

Display details

0 : H·P 1 : Cooling only
0 :

Single phase

2 :

Three phase

Setting details

Defrosting switch

Display details

0 :

Normal

1 :

High humidity region

1ON23456

1ON23456

Display detail

Capacity setting display

Outdoor unit setting advice

Indoor unit piping temperature / LIQUID
(TH2)
Indoor 1
– 39~88

Explanation for display

Display as an outdoor
capacity code

(Example) When switching cooing and heat pump,

three phase, defrosting (normal)

“20”

– 39~88
(When the temperature is 0: or less, “–” and

temperature are displayed by turns.)

Unit

Code

display

Code

display

:

Indoor unit piping temperature / LIQUID
(TH2)
Indoor 2
– 39~88

Indoor unit piping temperature / LIQUID
(TH2)
Indoor 3
– 39~88

Indoor unit piping temperature / LIQUID
(TH2)
Indoor 4
– 39~88

Indoor room temperature (TH1)
8~39

– 39~88
(When the temperature is 0: or less, “–” and

temperature are displayed by turns.)

:

When no indoor unit, “00” is displayed.

– 39~88
(When the temperature is 0: or less, “–” and

temperature are displayed by turns.)

:

When no indoor unit, “00” is displayed.

– 39~88
(When the temperature is 0: or less, “–” and

temperature are displayed by turns)

:

When no indoor unit, “00” is displayed.

8~39

:

73

SW2 setting

1ON23456

1ON23456
1ON23456

1ON23456

1ON23456

1ON23456

1ON23456

1ON23456

1ON23456

1ON23456

1ON23456

Display detail

Indoor setting temperature
17~30

Explanation for display Unit

17~30

:

Outdoor piping temperature/Cond./Eva.
(TH6)
– 39~88

Discharge super heat. SHd
0~255

Cool = TH4-TH6
Heat = TH4-TH5

Sub cool. SC
0~130

Cool = TH6-TH3
Heat = TH5-TH2

Communication demanded capacity.
0~255

When air conditioners are
connected to M-NET and
under central control.

When no communication demanded

setting, “100” is displayed.

Error thermistor display

Fan step on error occurring.
0~16

– 39~88
(When the temperature is 0: or less, “–” and

temperature are displayed by turns)

0~255
(When the temperature is 100 or more, the hundreds

digit and tens, units digit are displayed by turns.)

(Example) 115 :

One second interval.
1 15

0~130
(When the temperature is 100 or more, the hundreds

digit and tens, units digit are displayed by turns.)

0~255
(When the capacity is 100 or more, the hundreds

digit and tens, units digit are displayed by turns)

(Example) When 100

One second interval.
1 00

3: Outdoor liquid piping thermistor (TH3)
6: Outdoor condenser thermistor (TH6)

When no error thermistor, “–” is

displayed.

0~16

:

:

:

%

Code

Step

LEV opening on error occurring
0~440
Display by scaled 1/5 to actual opening

Outdoor piping temperature/Cond./Eva.
on error occurring. (TH6)
– 39~88

Discharge super heat on error occurring.
SHd
0~255

Cool = TH4-TH6
Heat = TH4-TH5

Sub cool on error occurring. SC
0~130

Cool = TH6-TH3
Heat = TH5-TH2

0~440
(When the pulse is 100 or more, the hundreds digit

and tens, units digit are displayed by turns)

(Example) When the display shows 300.

300 ✕ 5 = 1500 pulse

– 39~88
(When the thermistor is 0:and less, “–” and

temperature are displayed by turns.)

(Example) When –15:

One second interval
– 15

0~255
(When the temperature is 100 or more, the hundreds

digit and tens, units digit are displayed by turns.)

(Example) When 150:

One second interval
1 50

0~130
(When the temperature is 100 or more, the hundreds

digit and tens, units digit are displayed by turns.)

(Example) When 115:

One second interval
1 15

Pulse

:

:

:

74

SW2 setting

1ON23456

1ON23456

1ON23456

1ON23456

1ON23456

Display detail

Thermo-on time to error stop.
0~999

Indoor unit piping temperature / cond. /
Eva. (TH5) indoor 1
–39~88

Explanation for display Unit

0~999
(When the time is 100 or more, the hundreds

digit and tens, units digit are displayed by turns.)

(Example) When 415 minutes

One second interval
4 15

–39~88
(When the temperature is 0°C or less, “–” and

temperature are displayed by turns.)

Minute

°C

Indoor unit piping temperature / cond. /
Eva. (TH5) indoor 2
–39~88

–39~88
(When the temperature is 0°C or less, “–” and

temperature are displayed by turns.)

°C

When no indoor unit, “00” is displayed.

Indoor unit piping temperature / cond. /
Eva. (TH5) indoor 3
–39~88

–39~88
(When the temperature is 0°C or less, “–” and

temperature are displayed by turns.)

°C

When no indoor unit, “00” is displayed.

Indoor unit piping temperature / cond. /
Eva. (TH5) indoor 4
–39~88

–39~88
(When the temperature is 0°C or less, “–” and

temperature are displayed by turns.)

°C

When no indoor unit, “00” is displayed.

● For A-control Service Tool [ PAC-SK52ST ]

[Operation for A-control Service Tool]

1. By operating the dip switch SW2 on A-control Service Tool, the digital display of light-emitting diode (LED1) indicates the
operation mode and types of inspection with a tow-digit number and symbol.

2. After the inspection, A-control Service Tool shall be removed out of outdoor unit control board.

75

10 FUNCTION SETTING

FUNCTION

FUNCTION

1

2

3

FUNCTION

FUNCTION

3

4

Selecting functions using the wired remote controller

1 Check the function selection setting.
2 Switch to function setting mode. w

(Press A and B at the same time
with the remote controller stopped.)

w For modes 15 and higher,

press J and B at the same
time.

3 Specify refrigerant address 00 (outdoor unit)
4 Specify unit No. 00. (indoor unit)

(Use C and D.)

5 Enter the setting.

(Press E.)

(Specified indoor unit:
BLOW operation)

Change refrigerant
address unit No.

6

Select mode No 02

(room temperature detection position).

7

Select setting No. 03 (remote controller fixed).

(Use

F

and G.)

9

8 Enter the setting.

(Press E.)

Finished

10

Function selection end screen

(Press A and B at the same time.)

YES

YES

NO

NO

Example:
Selecting room temperature
detection position

D

E
G

F

F
E

G

STAND BY
DEFROST

PAR-20MAA

1

234

123

CENTRALLY CONTROLLED

CHECK

TEMP.

˚C

TIMER SET

ON OFF

CLOCK

ERROR CODE

CJ

4

1Hr.

NOT AVAILABLE

˚C

FILTER
CHECK MODE
TEST RUN
FUNCTION

ON/OFF

CHECK TEST

Wired type

1 Mode number
2 Setting number
3 Refrigerant address
4 Unit number

Changing the power voltage setting

• Be sure to change the power voltage setting depending on the voltage
used.

A
H
B

FILTER

A
B

CD

[Operating instructions] (entering settings with a wired remote controller)
1 Go to the function setting mode.

Switch OFF the remote controller.
Press the A FILTER and B TEST RUN buttons simultaneously and hold
them for at least 2 seconds. FUNCTION will start to flash. The refrigerant
address display will start to flash momentarily (see diagram 1).

2 Setting the refrigerant address

Use the C (TIMER SET) button to set the refrigerant address
(3) to 00 (see diagram 2). Press to increase the value or to
decrease it.

*

00 is the typical setting. When operating in a group configuration, use
the correlating refrigerant address (see the technical manual for details
on setting the refrigerant address for a group). The refrigerant address­es must be set in order when performing the following operation.

If the unit stops two seconds after the FUNCTION display starts to flash
or [88] starts to flash in the room temperature display, a transmission
problem may have occurred. Check to see if there is some source of
transmission interference (noise) nearby.

If you make a mistake during any point of this procedure, you can quit
the function setting mode by pressing 8 once and then return to step

1.

3 Setting the unit number

Press D (CLOCK ON OFF) and [--] will start to flash in the unit number
(4) display (see diagram 3).
Use the C (TIMER SET) button to set the unit number to 00
(see diagram 3). Press to increase the value or to decrease it.

Unit number 00 = the function setting selection for the entire refrigerant
system.

76

4

1

3 00 refrigerant address

(a)

(c)

(b)

(g)

(h)

FUNCTION

(d) (e)

(f)

4 Setting the refrigerant address/unit number

Press the E MODE button to designate the refrigerant address/unit num­ber. [--] will flash in the mode number (1) display momentarily (see dia­gram 4).

*

If [88] appears in the room temperature section, the selected refrigerant
address does not exist in the system. Also, if [F] appears in the unit
number display section, the selected unit number does not exist. Enter
the correct refrigerant address and unit number at steps 2 and 3.

Fan draft operation will start when settings are confirmed using the E
MODE button. You can also use this operation to find out what func­tions are assigned to which unit numbers and the locations of those
indoor units. Note that the fan draft operation will start for all of the
indoor units that have been assigned refrigerant addresses when 00 or
AL is the assigned unit number.

If an indoor unit other than those designated with refrigerant addresses

*

emits a fan draft when a different refrigerant grouping is being used,
the set refrigerant address have probably overlapped. Reassign the
refrigerant addresses at the DIP switch of the outdoor unit.

Example) When the refrigerant address is set to 00 and the unit number is

02.
(a) Outdoor unit

(b) Indoor unit
(c) Unit number 01
(d) Unit number 02
(e) Unit number 03
(f) Fan draft
(g) Designate operation
(h) Remote controller

5

5 Selecting the mode number

Press the F (TEMP) buttons to set the mode number (1) to

1

FUNCTION

6

04 (see diagram 5). Press to increase the value or to decrease
it.

Mode number 04 =power voltage switching mode

6 Selecting the setting number

1 will start to flash as the currently specified setting number (2) when the

button G is pressed (see diagram 6). Use the (TEMP) but-

FUNCTION

2

tons to specify 2 as the setting number (see diagram 6). Press to
increase the value or to decrease it.
(2) Setting number 1 = 240V
(2) Setting number 2 = 220V/230V

7 Designating the mode and setting numbers

The mode and setting numbers (1) (2) will start to flash when the MODE

FUNCTION

2

7

button E is pressed and the designation operation will begin (see diagram

7). The numbers are set when the flashing settings stay lit (see diagram

7).

*

If [---] appears in the room temperature display as the mode/setting
number, or if a flashing [88] display appears, a transmission problem
may have occurred. Check to see if there is some source of transmis­sion interference (noise) nearby.

FUNCTION

21

8 Complete function selection

Press the FILTER A and TEST RUN B buttons simultaneously for at least
two seconds. The function selection screen will disappear momentarily and
air conditioner OFF display will appear. (See diagram 8)

*

Do not use the remote controller for 30 seconds after completing the

FUNCTION

function selection.

8

FUNCTION

77

Wireless remote controller type
Flow of function selection procedure

The flow of the function selection procedure is shown below. This example shows how to turn
off the function that raises the set temperature by 4 degrees during HEAT operation. The
procedure is given after the flow chart.

1 Check the function selection setting.
2 Switch to function selection mode.

(Press the TIMER OFF button in
troubleshooting mode.)

Troubleshooting mode is the mode entered when you
set the adjustment switch on the back of the wireless
remote controller operation area to "ADJUST".

3 Specify unit No. "01" (since the function applies to unit 01).

(Set address "01" while still in troubleshooting mode, then press the HOUR button.)

Note: You can't specify the refrigerant address.

4

Select mode No. "24" (function that raises set temperature by 4 degrees during HEAT operation).
(Set address "24" while still in troubleshooting mode, then press the HOUR button.)

6

Finished

7 End function selection mode.

(End troubleshooting mode.)

YES

NO

Note: When you switch to function selection mode

on the wireless remote controller, the unit
ends function selection mode automatically if
nothing is input for 10 minutes or longer.

5 Select setting No. "02" (OFF).

(Set address "02" while still in troubleshooting mode, then press the HOUR button.)

ON/OFF

CHECK

ADDRESS
UNIT No.
FUNCTION No.
SELECTION No.

AM
PM

RESET

AM
PM

TEST RUN

FUNCTION

˚C

MODE FA N

VANE

TEMP.

START

STOP

HR.

MIN.

c
E

D
F

A
B

[Operating instructions] (entering settings with a wireless remote controller)

FUNCTION

TEST RUN

CHECK

STOP

Unit number setting

00

FUNCTION

HR

START

START

0 1

Mode selection

Nrm Set

Diagram 1

Changing the power voltage setting

Be sure to change the power voltage setting depending on the voltage used.

1 Go to the set mode

Set the Nrm/Set switch of the remote controller to Set. (see diagram 1)

, and will start to flash.

2 Go to the function select mode

Direct the wireless remote controller toward the sensor of the indoor unit and
press the button A.

Diagram 2

➜ will become lit and “00” will start to flash in the unit number dis-

play (see diagram 2). When the signal from the remote controller is

Diagram 3

received by the sensor, a single “beep” can be heard and the sensor­operation indicator will flash.

* If the signal was not received by the sensor or an error occurred during

transmission, you will not hear a beep or a “double beep” may be heard.
Press the button E and repeat the procedure.

3 Setting the unit number

Make sure that “00” is flashing in the unit number display. Direct the wireless
remote controller toward the sensor of the indoor unit and press the
button B. (The display changes at each press: 00
AL)
➜ “01” will flash in the mode display (see diagram 3).

When the signal from the remote controller is received by the sensor, a
single “beep” can be heard, the sensor-operation indicator will flash and
the draft operation will start.

* If a unit number that cannot be recognized by the unit is entered, three

beeps (3 deeps of 0.4 seconds duration) will be heard. Press the
button F and reenter the unit number setting.

* If the signal was not received by the sensor or an error occurred during

transmission, you will not hear a beep or a “double beep” may be heard.
Press the button F and reenter the unit number setting.

•When controlling each unit (unit 01 to 04) individually ➜

Select "01" to "04."

•When controlling all the units (unit 01 to 04) at once ➜

Select "AL" (all).

78

➜ 01 ➜ 02 ➜ 03 ➜ 04 ➜

FUNCTION

TEST RUN

CHECK

HR

START

START

00

02

Setting number

Diagram 4

HR

START

START

Diagram 5

0 4

0 1

Setting number

4 Selecting a mode

Enter 04 to change the power voltage setting using the ▲ C and ▼ D but-
tons (see diagram 4). Direct the wireless remote controller toward the sen­sor of the indoor unit and press the button B.

➜ “01” will flash in the setting number display (see diagram 5).

The sensor-operation indicator will flash and beeps will sound to indicate
the current setting number relative to the selected mode number.
Current setting number :1 = 1 beep (one second)

2 = 2 beeps (one second each)
3 = 3 beeps (one second each)

* If a mode number that cannot be recognized by the unit is entered, three

beeps (3 deeps of 0.4 seconds duration) will be heard. Press the
button F and reenter the mode number setting.

* If the signal was not received by the sensor or an error occurred during

transmission, you will not hear a beep or a “double beep” may be heard.
Press the button F and start over from the procedure for entering
the unit number.

Diagram 6

Diagram 7

5 Selecting the setting number

Refer to (2) and change the setting of power supply and voltage with ▼ C
button and ▲ D button .
(see diagram 6). Direct the wireless remote controller toward the sensor of
the indoor unit and press the button B.
(2) setting number “01” = 240V
(2) setting number “02” = 220V/230V

➜ “00” will flash in the setting number display (see diagram 7).

The sensor-operation indicator will flash and beeps will sound to indicate
the setting number that you entered.
Setting number : 1 = 2 beeps (0.4-seconds each)

2 = 2 beeps (0.4-seconds each, repeated twice)
(When the setting number is 02.)
3 = 2 beeps (0.4-seconds each, repeated three times)

* If a setting number that cannot be recognized by the unit is entered, three

beeps (3 beeps of 0.4 seconds duration) will be heard (unit will beep
only). Press the button F and start over from the procedure for
entering the unit number.

* If the signal was not received by the sensor or an error occurred during

transmission, you will not hear a beep or a “double beep” may be heard.
Press the button F and start over from the procedure for entering
the unit number.

6 To select multiple functions continuously

Repeat steps 3, 4 and 5 to change multiple function settings continuous­ly.

7 Complete function selection

Direct the wireless remote controller toward the sensor of the indoor unit and
press the button E.

➜ , and will start to flash.

Set the Nrm/Set switch of the remote controller to Nrm.

* Do not use the wireless remote controller for 30 seconds after complet-

ing the function selection (the unit will not operate).

Note:
Whenever changes are made to the function settings after construction
or maintenance, be sure to record the added functions with an “ ”, i n
the “Check” column provided on the chart.

79

ON/OFF

TEMP

FAN

VANE

MODE

CHECK

LOUVER

TEST RUN

AUTO STOP

AUTO START

h

min

CHECK

RESET

SET

CLOCK

E

C,D

F

A

B

CHECK

h

CHECK

min

h

h

CHECK

00

1

CHECK

00

2

CHECK

04

3

CHECK

01

4

Flow of function selection procedure

The flow of the function selection procedure is shown below. This example shows how to turn
off the function that raises the set temperature by 4 degrees during HEAT operation .
The procedure is given after the flow chart.

1 Check the function selection setting.
2 Switch to function selection mode.

(Enter address "50" in troubleshooting
mode, then press the HOUR button.)

Troubleshooting mode is the mode entered when
you press the INSPECT button twice to display
"INSPECT".

3 Specify unit No. "01" (since the function applies to unit 01).

(Set address "01" while still in troubleshooting mode, then press the MINUTE button.)

Note: You can't specify the refrigerant address.
4

Select mode No. "24" (function that raises set temperature by 4 degrees during HEAT operation).

(Set address "24" while still in troubleshooting mode, then press the HOUR button.)

6

Finished

8 End function selection mode.

(End troubleshooting mode.)

YES

NO

Note: When you switch to function selection mode

on the wireless remote controller's operation
area, the unit ends function selection mode
automatically if nothing is input for 10 minutes
or longer.

5 Select setting No. "02" (OFF).

(Set address "02" while still in troubleshooting mode, then press the HOUR button.)

Change
unit No.

YES

NO

7

Wireless remote controller type

[Operating instructions] (entering settings with a wireless remote controller)
Changing the power voltage setting

Be sure change the power voltage setting depending on the voltage used.

1 Go to the function select mode

Press the button F twice continuously.
(Start this operation from the status of remote controller display turned off.)

is lighted and “00” blinks.
Press The temp button C once to set “50”. Direct the wireless remote
controller toward the receiver of the indoor unit and press the button A.

2 Setting the unit number

Press the temp button C and D to set the unit number “00”. Direct the
wireless remote controller toward the receiver of the indoor unit and press the

•When controlling each unit (unit 01 to 04) individually ➜

Select "01" to "04."

•When controlling all the units (unit 01 to 04) at once ➜

Select "07."

3 Selecting a mode

Enter 04 to change the power voltage setting using the C and D but-
tons.
Direct the wireless remote controller toward the receiver of the indoor unit and
press the button A.

Current setting number: 1 = 1 beep (one second)

4 Selecting the setting number

Use the C and D buttons to change the power voltage setting to 01
(240V).
Direct the wireless remote controller toward the sensor of the indoor unit and
press the button A.

button B. (The display changes at each press: 01 to 50)

2 = 2 beeps (one second each)
3 = 3 beeps (one second each)

80

Function

Mode

No.

01

02

03

04
15
16
17

19

07

08

09

10

11

12
13
23
24

25

27
28

Settings

PLH-P·KAH

PLA-P·KA

PCH-P·GAH

PCA-P·GA

PKH-P·GALH

PKA-P·GAL

Power failure
automatic recovery
Indoor temperature
detecting

LOSSNAY
connectivity

Power voltage
Frost prevention

temperature
Humidifier control

Change of
defrosting control
Thermo differential
setting

Filter sign

Fan speed

No. of air outlets

Installed options (high­performance filter)
Up/down vane
setting

Energy saving air flow
(Heating mode)
Humidifier
(Direct Add-on type)
Swing

Set temperature in heating
mode 4deg-up
Fan speed when the
heating thermostat is
OFF.
Fan speed when the
cooling thermostat is OFF.
Detection of abnormality

Not available
Available
Indoor unit operating average
Set by indoor unit's remote controller
Remote controller's internal sensor
Not supported
Supported (indoor unit in not equipped with outdoor-air intake)
Supported (indoor unit in equipped with outdoor-air intake)
240V
220V, 230V
2:
3:
When the compressor operates, the humidifier also operates.
When the fan operates, the humidifier also operates.
Standard
High humidity region
Normal
5:
10:
100Hr
2500Hr
No filter sign indicator
Quiet
Standard
High ceiling
4 directions
3 directions
2 directions
Not supported
Supported
No vanes
Equipped with vanes (No.1 set)
Equipped with vanes (No.2 set)
Disabled
Enabled
Not supported
supported
Not available
Available
Available
Not available
Extra low
Low
Setting fan speed
Setting fan speed
Stop
Available
Not available

PMH-P·BA

PLH-P·KAH.UK

PLA-P·KA.UK

PEHD-P·EAH

PEAD-P·EA

PLH-P·AAH

PLA-P·AA

PKH-P·FAH

PKA-P·FAL

PSH-P·GAH

PSA-P·GA

standard
High ceiling 1
High ceiling 2

PLH-P·AAH/PLA-P·AA type

5 To select multiple functions continuously

Repeat steps 3 and 4 to change multiple function settings continuously.

6 Complete function selection

Direct the wireless remote controller toward the sensor of the indoor unit and
press the button E.

Note:
Whenever changes are made to the function settings after construction or
maintenance, be sure to record the added functions with an “ ”, in the
“Check” column provided on the chart.

Things to remember when entering function selections:

The basic procedure for entering function selections is the same as described for switching between power voltages. However, there are some
differences at step 33for selecting the unit number, step 55for selecting the mode number and step 66for selecting the unit number. The fol-

lowing Tables 2 and 3 list the various function settings, mode numbers and setting numbers. Table 2 details the functions of the entire refriger­ant system while Table 3 shows the functions that can be set for the indoor unit.
In case of setting the mode number from 15 to 28 with the wired remote controller, shift to the function selecting mode by pressing JJ(Air
direction) button and BB(TEST RUN) button at the same time for 2 seconds or more.
(The function selecting mode will be released in the same way as the one of setting it.)

Other function selections

Now that you know how to change the power voltage setting, there are several other settings that can be changed as well. The following Table
lists the various settings that can be changed through the remote controller and the default settings of the various units.

Table 1

81

Function

Settings

Mode No.

Setting No.

Check Remarks

Filter sign

Fan speed

No. of air outlets

Installed options (high­performance filter)
Horizontal vane
setting

Energy saving air
flow (Heating mode)
Humidifier
(Direct Add-on type)
Swing

Set temperature in
heating mode 4deg-up

Fan speed when the
heating thermostat is OFF

Fan speed when the
cooling thermostat is OFF

Detection of abnormality
(P8) of the pipe temperature

100Hr
2500Hr
No filter sign indicator
Quiet
Standard
High ceiling
4 directions
3 directions
2 directions
Not supported
Supported
No vanes
Equipped with vane (No.1 set)
Equipped with vane (No.2 set)
Disabled
Enabled
Not supported
supported
Not available
Available
Available
Not available
Extra low
Low
Setting fan speed
Setting fan speed
Stop
Available
Not available

1
2
3
1
2
3
1
2
3
1
2
1
2
3
1
2
1
2
1
2
1
2
1
2
3
1
2
1
2

07

08

09

10

11

12
13
23
24

25

27
28

standard
High ceiling 1
High ceiling 2

PL(H)(A)-P·AA type

Refer to w1.
Refer to w2.

Function

Settings

Mode No.

Setting No.

Check Remarks

Power failure
automatic recovery

Indoor temperature
detecting

LOSSNAY
connectivity

Power voltage
Frost prevention

temperature
Humidifier control

Change of
defrosting control
Thermo differential
setting

Not available
Available
Indoor unit operating average

Set by indoor unit's remote controller
Remote controller's internal sensor
Not supported
Supported (indoor unit in not equipped with outdoor-air intake)
Supported (indoor unit in equipped with outdoor-air intake)
240V
220V, 230V
2:
3:
When the compressor operates, the humidifier also operates.
When the fan operates, the humidifier also operates.
Standard
High humidity region
Normal
5:
10:

1
2
1

2
3
1
2
3
1
2
1
2
1
2
1
2
1
2
3

01

02

03

04
15
16
17

19

Approx. 4-minute wait-period
after power is restored.

Only for PU(H)-P•GAA

Table 2. Itemised functions of the entire refrigerant system (select unit number 00)

Table 3. Itemised functions of the indoor unit (select unit numbers 01 to 03 or AL [Wired remote controller] / 07 Wireless remote controller])

3 Setting the unit numbers

Set “00” as the unit number when setting functions from Table 2.
When setting functions from Table 3:

- When setting functions for an indoor unit in an independent system, set the unit number to 01.

- When setting functions for a simultaneous-Twin Triple indoor unit system, assign unit numbers from 01 to 03 each indoor unit.

- When setting the same functions for an entire simultaneous Twin Triple-indoor unit system, assign “AL” as the unit number.

5 Selecting the mode number

Selecting from Table 2 and Table 3.

6 Selecting the setting number

Selecting from Table 2 and Table 3.

w1 Horizontal vane First setting: The angle of the vane is set to standard.
w2 Horizontal vane Second setting: The angle of the vane is finely changed as a measure against smudging.

82

Supplementary information

Setting Status change diagram Example

Normal thermo
(mode: 01)

5 degree
thermo
(mode: 02)

10 degree
thermo
(mode: 03)

19

Mode

Intake temperature

Thermo ON

Thermo OFF
Temperature

set on remote
controller

Setting

Setting + 1 degree

(Indoor intake temperature)

Thermo ON
Thermo OFF

21:
20:

w When remote controller setting = 20:

Intake temperature

Thermo ON

Thermo OFF
Temperature

set on remote
controller

Setting

Setting + 5 degree

(Indoor intake temperature)

Thermo ON
Thermo OFF

25:
20:

w When remote controller setting = 20:

Intake temperature

Thermo ON

Thermo OFF
Temperature

set on remote
controller

Setting

Setting + 10 degree

(Indoor intake temperature)

Thermo ON
Thermo OFF

30:
20:

w When remote controller setting = 20:

1) Energy-saving warm airflow control
Start timing: Starts when thermo is switched from ON to OFF after HEAT mode and the hot adjust process

have finished.

End timing: Ends when any of the following conditions is met:

(1) The unit is switched to any mode other than HEAT.
(2) The unit enters DEFROST operation.
(3) Intake temperature ! Set temperature
(4) More than 5 minutes after the start of energy-saving warm airflow fan control
(5) The unit is switched to hot adjust.

•Energy-saving warm airflow control keeps the vane in the downward position and maintains the fan speed

when thermo is turned OFF.

2) Thermo differential setting
Overview: Enables the thermo differential feature to be switched by remote controller function selection during

COOL operation. Settings are normal (1 degree), 5 degrees or 10 degrees.

Purpose: When the unit is installed to air-condition equipment items or for similar applications where the COOL

operation is used year-round, the compressor is frequently switched ON and OFF in winter when the
air conditioning load is low. This frequent switching can shorten the compressor service life.
The thermo differential feature is used to reduce the number of times the compressor is switched ON
and OFF, to prevent its service life from being shortened.

Changes: "COOL thermo differential switching" has been added to function selection (mode: 19).

Applicable mode: COOL THERMO only. HEAT THERMO settings can't be changed.
Other: Setting at time of factory shipment is "NORMAL THERMO" (mode: 01).

83

Setting model No.

PLH–P·KAH / PLA-P·KA
PLH–P·AAH / PLA-P·AA
PCH–P·GAH / PCA-P·GA
PKH–P·GALH / PKA-P·GAL
PKH–P·FALH / PKA-P·FAL
PLA-P·KA
PLA-P·AA
PCA-P·GA
PKA-P·GAL
PKA-P·FAL

001

003
033

035

Heat pump

Cooling only

Type Model No. Model

•By setting the wireless remote controller model No., you can change the functions that the remote controller
provides. Change the model No. as needed.

Procedure

1. Press the SET button using a pointed implement.
"MODEL SELECT" flashes and the currently set
model No. appears (steadily-lit).

SET button

MODEL SELECT

ON/OFF

MODE

CHECK

TEST RUN

SET

FAN

VANE

LOUVER

RESET

CLOCK

TEMP

AUTO STOP

AUTO START

h

min

Model No.

Temperature
button

2. Press the temperature buttons to select the
model No. to set.

3. Press the SET button using a pointed implement.
"MODEL SELECT" and the set model No. appear
(steadily-lit) for 3 seconds, then disappear.

•When setting a model No., make sure it is the correct

model No. for the unit's functions. If an incorrect model
No. is set, the unit's operation will not correspond with
the remote controller's display.

84

001 002003 004 005 006 007008 009 010 011 012 013 014015 016 017018 019 020021 022 023 024 025 026 027 028029 030 031 032 033 034035 036037 038 039 040041 042043

Model No.

1 Speed 4

2 Speed 3

3 Speed 2

Vane [Equipped]/ Swing function [Equipped]

Vane [Equipped]/ Swing function [None]

4 Speed 1

1 Louver [None]

2

2 Louver [Equipped]

1

No definition (Vane [None])

Cool/ Dry/ Automatic/ Fan/ Heat

Cool/ Dry/ Automatic/ Heat

Cool/ Dry/ Automatic/ Fan/ Burner-used heat/ Heat

3 Vane [None]

4

1

2 Cool/ Dry/ Fan

3

4

044 045046 047 048 049 050051 052 053 054 055 056057 058 059060 061 062063 064 065066 067 068069 070 071 072 073074 075 076 077 078 079080 081 082083 084 085 086

Cool/ Automatic/ Fan/ Heat

5 Cool/ Fan

6

7 Cool/ Fan/ Heat

8 Cool/ Dry/ Fan/ Heat

1 Speed 4

2 Speed 3

3 Speed 2

Vane [Equipped]/ Swing function [Equipped]

Vane [Equipped]/ Swing function [None]

4 Speed 1

1 Louver [None]

2 Louver [Equipped]

1

2

No definition (Vane [None])

Cool/ Dry/ Automatic/ Fan/ Heat

Cool/ Dry/ Automatic/ Heat

Cool/ Dry/ Automatic/ Fan/ Burner-used heat/ Heat

3 Vane [None]

4

1

2 Cool/ Dry/ Fan

3

4

Cool/ Automatic/ Fan/ Heat

5 Cool/ Fan

6

7 Cool/ Fan/ Heat

8 Cool/ Dry/ Fan/ Heat

List of function for all the models [Wireless remote controller]

1.Fan

speed

2.Vertical

vane

3.Horizon

tal vane

4.Operati

on mode

85

1.Fan

speed

2.Vertical

vane

3.Horizon

tal vane

4.Operati

on mode

087 088089 090 091 092 093094 095 096 097 098 099100 101 102103 104 105106 107 108109 110 111 112 113 114 115 116 117 118 119 120121 122 123 124125 126127 128 129

Model No.

Vane [Equipped]/ Swing function [Equipped]

Vane [Equipped]/ Swing function [None]

No definition (Vane [None])

1 Speed 4

2 Speed 3

3 Speed 2

4 Speed 1

1 Louver [None]

2 Louver [Equipped]

1

2

3 Vane [None]

4

List of function for all the models

1.Fan

speed

2.Vertical

vane

3.Horizon

tal vane

Cool/ Dry/ Automatic/ Fan/ Heat

Cool/ Dry/ Automatic/ Heat

Cool/ Dry/ Automatic/ Fan/ Burner-used heat/ Heat

Cool/ Automatic/ Fan/ Heat

1

2 Cool/ Dry/ Fan

3

4

5 Cool/ Fan

6

7 Cool/ Fan/ Heat

8 Cool/ Dry/ Fan/ Heat

4.Operati

on mode

86

130 131132 133 134 135 136137 138 139 140 141 142143 144 145146 147 148149 150 151152 153 154 155 156157 158 159160 161 162163 164 165166 167 168 169 170171 172

1 Speed 4

1.Fan

2 Speed 3

3 Speed 2

4 Speed 1

speed

Vane [Equipped]/ Swing function [Equipped]

Vane [Equipped]/ Swing function [None]

No definition (Vane [None])

Cool/ Dry/ Automatic/ Fan/ Heat

Cool/ Dry/ Automatic/ Heat

Cool/ Dry/ Automatic/ Fan/ Burner-used heat/ Heat

Cool/ Automatic/ Fan/ Heat

1 Louver [None]

2 Louver [Equipped]

1

2

3 Vane [None]

4

1

2 Cool/ Dry/ Fan

3

4

5 Cool/ Fan

6

7 Cool/ Fan/ Heat

8 Cool/ Dry/ Fan/ Heat

2.Vertical

vane

3.Horizon

tal vane

4.Operati

on mode

173 174175 176 177 178 179180 181 182 183 184 185186 187 188189 190 191192 193 194195 196 197198 199 200 201 202203 204 205 206 207 208209 210 211 212 213 214 215

Model No.

1 Speed 4

2 Speed 3

3 Speed 2

Vane [Equipped]/ Swing function [Equipped]

Vane [Equipped]/ Swing function [None]

4 Speed 1

1 Louver [None]

2

2 Louver [Equipped]

1

No definition (Vane [None])

Cool/ Dry/ Automatic/ Fan/ Heat

Cool/ Dry/ Automatic/ Heat

Cool/ Dry/ Automatic/ Fan/ Burner-used heat/ Heat

3 Vane [None]

4

1

2 Cool/ Dry/ Fan

3

4

216 217218 219 220 221 222223 224 225 226 227 228229 230 231232 233 234235 236 237238 239 240241 242 243 244 245246 247 248 249 250 251252 253 254255 256

Cool/ Automatic/ Fan/ Heat

5 Cool/ Fan

6

7 Cool/ Fan/ Heat

8 Cool/ Dry/ Fan/ Heat

1 Speed 4

2 Speed 3

3 Speed 2

Vane [Equipped]/ Swing function [Equipped]

Vane [Equipped]/ Swing function [None]

4 Speed 1

1 Louver [None]

2 Louver [Equipped]

1

2

No definition (Vane [None])

Cool/ Dry/ Automatic/ Fan/ Heat

Cool/ Dry/ Automatic/ Heat

Cool/ Dry/ Automatic/ Fan/ Burner-used heat/ Heat

3 Vane [None]

4

1

2 Cool/ Dry/ Fan

3

4

Cool/ Automatic/ Fan/ Heat

5 Cool/ Fan

6

7 Cool/ Fan/ Heat

8 Cool/ Dry/ Fan/ Heat

List of function for all the models

1.Fan

speed

2.Vertical

vane

3.Horizon

tal vane

4.Operati

on mode

87

1.Fan

speed

2.Vertical

vane

3.Horizon

tal vane

4.Operati

on mode

Wireless remote controller pair number:
Setting operation

1. Press the SET button (using a pointed implement).
Check that the remote controller's display has stopped
before continuing.
MODEL SELECT flashes, and the model No. (3 digits)
appears (steadily-lit).

2. Press the MINUTE button twice.
The pair number appears flashing.

3. Press the temperature buttons to select the pair
number to set.

4. Press the SET button (using a pointed implement).
The set pair number is displayed (steadily-lit) for 3
seconds, then disappears.

SET button

MODEL SELECT

ON/OFF

MODE

CHECK

TEST RUN

SET

FAN

VANE

LOUVER

RESET

CLOCK

TEMP

AUTO STOP

AUTO START

h

min

Pair No.

Model No.

Temperature
button

Minute
button

88

11

TEST RUN & EMERGENCY OPERATION

11-1. Before test run

After installation of indoor and outdoor units, and piping
and electric wiring work, re-check that the unit is free
from leaks of refrigerant, loosened connections, and
incorrect polarity.

Measure and impedance between the power supply ter­minal block on the outdoor unit and the ground with a
500V Merger and check that it is equal to or greater than

1.0MΩ.
For the heater integrated units, make the similar mea­surement on the heater power supply terminal block (L,
N, ).

(*) Never apply any voltage to the both terminal blocks

for the indoor and outdoor unit connection (S1, S2,
S3) and the remote controller (1,2).

For specific models requiring changing of settings for
higher ceilings or selection of power supply ON/OFF
capability, make proper changes referring to the descrip­tion for Selection of Functions through Remote
Controller.

6
A

3

2

4

11-2 Test run procedures

(1) Indoor unit

Wired type

Operating procedures
1 Turn on the main power supply.

While the room temperature display on the remote controller
reads “H0”, the remote controller is disabled. Turn off the
“Ho” display before using the remote controller.

2 Press “TEST RUN” button twice.

A the ‘TEST RUN’ indicator should light up.

3 Press button.

Cool in/drying mode: Cool air should start to blow.
Heating mode: Warm air should start to blow (after a while).

4 Press button.

Check for correct motion of auto-vanes.

5 Check the outdoor unit fan for correct running.

The outdoor unit features automatic capacity control to pro­vide optimum fan speeds. The fan keeps running at a low
speed to meet the current outside air condition unless it
exceeds its available maximum power. Then, in actuality,
the fan may stop or run in the reverse direction depending
on the outside air, which does not mean malfunction.

6 Press the “ON/OFF” button to reset the test run in

progress.

• The test run will be automatically shut down after two
hours in response to the AUTO STOP setting of two hours
on the timer.

• During the test run, the room temperature display shows
the indoor unit tubing temperatures.

3

STAND BY
DEFROST

PAR-20MAA

CENTRALLY CONTROLLED

CHECK

˚C

TEMP.

TIMER SET

ON OFF

CLOCK

ERROR CODE

1Hr.

NOT AVAILABLE

˚C

FILTER
CHECK MODE
TEST RUN
FUNCTION

ON/OFF

FILTER

CHECK TEST

A

6

2
4

• In the case of the test run, the OFF timer will activate, and the test run will automatically stop after two hours.

• The room temperature display section shows the pipe temperature for indoor units during the test run.

• Check that all the indoor units are running properly for simultaneous twin and triple operation.
Malfunctions may not be displayed even if the wiring is incorrect.

(*1)
After turning ON the power supply, the system will go into start up mode and “ H0” will be blinked on the operation lamp of the
remote controller (green) and the display section of the room temperature .
As to INDOOR BOARD LED , LED1 and LED2 will be lit up (In case the address is 0.) or turned off (In case the address is not

0.) and LED3 will be blinked.

As to OUTDOOR BOARD LED , LED1(green) and LED2(red) will be lit up.(After the startup mode of the system will be
finished ,LED2(red) will be turned off.)
In case OUTDOOR BOARD LED is the digital display, — and — will be displayed alternately every second.

• If one of the above operations does not function correctly, the following causes should be considered, and if applicable, dealt
with. (The following symptoms have been determined under test run mode. Note that “start up” in the chart means the *1 dis­play above.)

89

Symptoms

LCD

Nonconformity Content

P1
P2
P4
P5
P6
P8
P9

Abnormality of room temperature thermistor (TH1).
Abnormality of pipe temperature thermistor/Liquid (TH2)
Abnormality of drain sensor (DS)
Malfunction of drain-up machine
Freezing/overheating protection is working
Abnormality of pipe temperature
Abnormality of pipe temperatuer thermistor/Cond./Eva. (TH5)

LCD

Nonconformity Content

E0~E5
E6~EF
U0~UL

F1~F9

----

FFFF

Abnormality of the signal transmission between remote
controller and indoor unit.
Abnormality of the signal transmission between indoor unit and
outdoor unit.
Abnormality in outdoor unit.
Abnormality in outdoor unit.
No trouble generated in the past.
No corresponding unit.

LED 1 (microcomputer power supply)
LED 2 (remote controller feed)

LED 3 (indoor and outdoor signals)

Displays the ON/OFF of power for control. Check that this is lit during normal use.
Displays the ON/OFF of feed to wired remote controller. Is only lit for indoor unit linked to outdoor
unit with address "00".
Displays signal between indoor and outdoor units. Check that this is flashing during normal use.

Nrm Set

92

ON/OFF

CHECK

ADDRESS
UNIT No.
FUNCTION No.
SELECTION No.

AM
PM

RESET

AM
PM

TEST RUN

FUNCTION

˚C

MODE FA N

VANE

TEMP.

START

STOP

HR.

MIN.

A
B

8

4
5

6

7

3

FUNCTION

TEST RUN

CHECK

MIN.

TEST RUN

MODE

COOL

MODE

FAN

VANE

HEAT

Remote Controller Display

Remote controller is displaying "H0", and
operation is not possible.
After power is turned ON, "H0" is displayed
for 3 mins., then error code is displayed.

Power is turned ON, and "EE" or "EF" are
displayed after "H0" is displayed.

OUTDOOR BOARD LED Display Cause

In case of digital display, < > is displayed.

After "startup" is displayed,
only green is lit up. < 00 >
After "startup" is displayed, the
green(once) and red(once) are
blinked alternately. <F1,F2>
After "startup" is displayed, the
green(once) and red(twice) are

• After power is turned ON, system startup lasts for about 2
mins., and "H0" is displayed (correct operation).

• Outdoor unit`s safeguard installation connector is open.

• Negative phase and open phase of outdoor unit`s power
terminal board (Single phase: L,N /triple phase: L1,L2,L3 )

• Incorrect connection of outdoor terminal board (Single phase:
L,N /triple phase: L1,L2,L3 grounding and S1,S2,S3)

blinked alternately. <F3,F5,F9>
After "startup" is displayed,
only green is lit up. < 00,EE>

• The refrigerant system of outdoor unit is different from that of

indoor unit.

Display messages do not appear even
when remote controller operation switch is
turned ON (operation lamp does not light
up).

After "startup" is displayed, the
green(twice) and red(once) are
blinked althernately. <EA,Eb>
After "startup" is displayed,
only green is lit up. < 00 >

• Wiring for the indoor and outdoor unit is not connected
correctly. (Polarity is wrong for S1,S2,S3)

• Remote controller transmission wire short

•There is no outdoor unit for address 0 (address is something
other than 0).

• Remote controller transmission wire burnout

Operation display appears but soon
disappears even when remote controller

After "startup" is displayed,
only green is lit up. < 00 >

• After cancellation of function selection, operation is not
possible for about 30 secs. (correct operation).

operations are executed.

* Press the remote controller`s “CHECK” button twice consecutively to be able to run a self diagnosis. See the chart below for content of

error code displays.

See the chart below for details of the LED displays (LED 1,2,3) on the indoor substrate.

Wireless remote controller type

Operating procedures

1 Turn on the main power to the unit.
2 Set the Nrm/Set selector switch (on the back of the con-

troller) to “Set”.

A The , and begin to blink.

3 Press the button.

B and current operation mode are displayed.

4 Press the ( ) button to activate mode,

then check whether cool air is blown out from the unit.

5 Press the ( ) button to activate mode,

then check whether warm air is blown out from the unit.

6 Press the button and check whether strong air is

blown out from the unit.

7 Press the button and check whether the auto

vane operates properly.

8 Press the ON/OFF button to stop the trial run.
9 After trial run is complete, set the Nrm/Set selector

switch to “Nrm”.

Note:

• Point the remote controller toward the inside unit’s
receiver while following steps 3 though 8.

• It is not possible to run the unit in BLOW, DRY or AUTO
mode.

90

ON/OFF

TEMP

FAN

VANE

MODE

CHECK

LOUVER

TEST RUN

AUTO STOP

AUTO START

h

min

TEST RUN

RESET

SET

CLOCK

7

5

6

2

3,4

Test run [for wireless remote controller]

MODE

MODE

COOL

HEAT

TEST RUN

FAN

VANE

TEST RUN

Measure an impedance between the power supply terminal block on
the outdoor unit and ground with a 500V Megger and check that it is
equal to or greater than 1.0M".

1 Turn on the main power to the unit.
2 Press the button twice continuously.

(Start this operation from the status of remote controller display
turned off.)
A and current operation mode are displayed.

3 Press the ( ) button to activate mode, then

check whether cool air is blown out from the unit.

4 Press the ( ) button to activate mode, then

check whether warm air is blown out from the unit.

5 Press the button and check whether strong air is blown out

from the unit.

6 Press the button and check whether the auto vane operates

properly.

7 Press the ON/OFF button to stop the test run.

Note:

• Point the remote controller towards the indoor unit receiver
while following steps 22to 77.

• It is not possible to run the in FAN, DRY or AUTO mode.

91

(2) Outdoor Unit

OFF

12

ON

<SW4>

AB

CD

A Stop C operation
B Cooling D Heating

1) Check Items

• After installation of indoor and outdoor units, and tubing and electric wiring work, check that the unit is free from leaks of refrigerant, loosened
connections, and incorrect polarity.

• Check that there is no negative phase and open phase. (The F1 message for negative phase and the F2 message for open phase will flash
at digital indicator LED 1 on the outdoor substrate. If this happens, rewire correctly.)

• Measure the impedance between power terminals (Single phase: L,N,;;/ triple phase: L1,L2,L3,;;) and the ground with a 500V Merger and

check that it is 1.0MΩ or more. Do not operate the equipment if measurement is less than 1.0mΩ. *Never conduct this operation on the out­door connection wiring terminals (S1,S2,S3) as this causes damage.

• When there is no error at the outdoor unit.
(If there is an error at the outdoor unit, it can be evaluated at LED 1 [digital display] of the outdoor substrate.)

• The stop valves are open both the liquid and gas sides.
After checking the above, execute the test run in accordance with the following.

2) Test run start and finish

• Operation from the indoor unit
Execute the test run using the installation manual for the indoor unit.

• Operation from the outdoor unit.
Execute settings for test run start, finish and operation mode (cooling, heating) using the DIP switch SW 4 on the outdoor substrate.

1 Set the operation mode (cooling, heating) using SW4-2.
2 Turn ON SW 4-1, The operation mode for SW 4-2 will be adhered to, and the test run will commence.
3 Turn OFF SW 4-1 to finish the test run.

• There may be a faint knocking noise emitted from the proximity of the fan during the test run. This is torque
fluctuation occurring due to control of fan revolutions. There is no problem with the product.

Note:
The SW 4-2 operation mode cannot be changed during the test run. (To change run mode, stop the equipment with SW 4-1, change
the operation mode, then restart test run with SW 4-1.)

11-3. Emergency Operation

(1) Indoor unit

1. When the wired remote controller or indoor unit micro computer troubles if there is not any other wrong, emergency opera-

tion starts as the indoor control 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 pump. (only provided model)

w When the remote controller cannot be used for the wireless remote controller, emergency operation is available by

operating the emergency operation switch (SW1/SW2 in the wireless remote controller receiving p.c/board) in the
indoor unit.

2. When emergency operating for COOL or HEAT, setting of the switch (SWE) in the indoor control p.c.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. (optional drain up mach.)

(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) As for PL-P·AAType or PC, PK Type series, since vane does not work at emergency operation position the vane manu-

ally and slowly.

92

(2) Outdoor unit

Display

U4
E8

E9

E0~E7

Inspections details

Piping thermistor (TH3) or condenser thermistor (TH6) open/short
Transmission between indoor and outdoor unit Receiving trouble (outdoor unit)
Transmission between indoor and outdoor unit Transmission trouble (outdoor unit)
Transmission trouble except for outdoor unit

1. When the outdoor unit becomes under mentioned inspection display. Also when the wired remote controller or micro com­puter in the indoor unit is broken. If there is not any wrong section, short-circuited connector (CN31) in the outdoor con­troller board is possible to emergency operation.

Trouble to which emergency operation can be set

2. Check items and notices as the emergency operation
(1) Be sure that there is no trouble in the outdoor unit any more besides above mentioned.

(When there is trouble besides above mentioned, emergency operation is not available.)
(2) When the emergency operation, their switch (SWE) setting in the indoor control p.c.board is necessary.
(3) 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.
(4) Do not operate for a long time as cold air is blown from the indoor unit, when the outdoor unit starts defrosting operation

during heating emergency operation.
(5) Cool emergency operation must be within 10 hours at most. It may cause heat exchanger frosting in the indoor unit.
(6) After completing the emergency operation, return the switch setting, etc. in former state.

3. How to operate the emergency operation
(1) Turn off the main power supply.
(2) Turn on the emergency switch (SWE) in the indoor control p.c.board.
(3) Short-circuit the CN31 (emergency operation connector) in the outdoor controller board.
(4) Set the operation mode (COOL or HEAT) with the SW4-2 in the outdoor controller board.

(SW4-1 cannot be used.)
(5) Turn on the main power supply.
(6) The emergency operation starts and be sure of blinking the operation mode display.

4. Emergency operation details
(1) Operate with the operation mode which has set (COOL or HEAT) by the SW4-2.
(2) In the fan operation conditions, the fan is always operated by 100 percent.
(3) The operation mode display blinks at intervals of 1 second.

5. How to release the emergency operation
(1) Turn off the main power supply.
(2) Turn off the emergency switch (SWE) in the indoor control p.c.board.
(3) Open the CN31 (emergency operation connector) in the outdoor controller board.
(4) Set the SW4-2 in the outdoor controller board as follows;

93

(3)Operation data during emergency operation

Operation data

Intake temperature (TH1)
Indoor fluid pipe temperature (TH2)
Indoor 2-phase pipe temperature (TH5)
Set temperature
Outdoor fluid pipe temperature (TH3)
Outdoor discharge pipe temperature (TH4)
Outdoor 2-phase pipe temperature (TH6)
Outdoor air temperature (TH7)
Temperature difference code (intake temperature - set temperature) (∆Tj)
Discharge super heat (SHd)
Sub-cool (SC)

Operation mode

COOL

27:

5:

5:
25:
45:
80:
50:
35:

5

30deg

5deg

HEAT

20.5:
45:
50:
22:

5:

80:

5:
7:

5

30deg

5deg

(w1)
(w1)
(w1)
(w1)

(w2)
(w2)

Remarks

w1: If the thermistor temperature data is normal (not open/short), that data is loaded into the control as valid data.

If the unit enters emergency operation because TH values have become mismatched, setting the thermistors
to open/short corrects the settings.

w2: If one thermistor is set to open/short, the values for each will be different.

[Example] When liquid temperature thermistor (TH3) has an open or short circuit.

COOL

45:

Ta

Tc

5:
5:

HEAT

5:

Tb

Td

50:
45:

Thermistor

TH3

TH6

TH4

TH5
TH2

Regard normal firure as effective data.

Regard normal firure as effective data.

Discharge superheat (SHd)
Cooling = TH4 - TH6 = Tc - Ta
Heating = TH4 - TH5 = Td - 50

Degree of subcooling (SC)
Cooling = TH6- TH3 = Ta -45
Heating = TH5- TH2 = 50 - 45 = 5 deg.

During emergency operation, no communication is performed with the indoor unit, so the data items needed for operation
are set to the following values:

94

12

Mode number

Setting number

Refrigerant address

Unit number

PAR-20MAA

ON/OFF

CENTRALLY CONTROLLED

ERROR CODE

CLOCK

ON OFF

˚C

CHECK

CHECK MODE

FILTER

TEST RUN
FUNCTION

˚C

1Hr.

NOT AVAILABLE

STAND BY
DEFROST

FILTER

CHECK TEST

TEMP.

TIMER SET

E
G

CD H

F

I
A

B

J

1

2

a)

3(1)

c)

b)

d)

e)

SELF-DIAGNOSIS

12-1. Malfunction-diagnosis method by remote controller

12-1-1. Error history of unit
(1) Wired remote controller

<In case of trouble during operation>

If there is a trouble on air conditioner, both indoor unit and out­door unit will stop and digital display shows what was wrong.

1 “CHECK” and refrigerant address are displayed at set tem-

perature display, check code and unit number are displayed
at clock display alternately.
(If outdoor unit is malfunctioning, unit number is 00.)

2 The refrigerant address of unit that first made trouble (that

received check code) and check code are displayed, if
group control system of plural refrigerant is set by one
remote controller.

3 Press the “ON/OFF” button to cancel check code.

[Remote controller can not cancel check code at the case of
distant operation of distant-handy combined operation and
the case of central control by controller of MELANS.
Cancel distant operation or central control to cancel check
code.]

<Malfunction-diagnosis method at maintenance ser-

vice>

Digital control has memory function that menorizes latest
check code even if it is cancelled by remote controller or
power is shut off.
Indoor unit fan stops during malfunction-diagnosis process on
maintenance service.

Search error histories of each unit by remote con­troller.

1 Turn to self-diagnosis mode.

Press the H “CHECK” button twice within three seconds,
and following display appears.

a) Error code

2 Set refrigerant address number that you want to diagnose.

Press the F (temp.) button to set refrigerant address
to be diagnosed.
Refrigerant address has number from 00 to 15.
Three seconds after setting, lighted self-diagnosed refriger­ant address begins blinking and self-diagnosis process
begins.

3 Self-diagnosis result display

See the above chart for details of error code contents.
(1) When there is an error history.

b) Alternating display
c) Error code
d) Attribute of error search

e) Unit number
(2) When there is no error history.
(3) When the address does not exist.

95

4 To cancel self-diagnosis

(2)

(3)

5 (1)

b)

(2)

(3)

ON/OFF

CHECK

ADDRESS
UNIT No.
FUNCTION No.
SELECTION No.

AM
PM

RESET

AM
PM

TEST RUN

FUNCTION

˚C

MODE FA N

VANE

TEMP.

START

STOP

HR.

MIN.

4
6

AB

4

35

Nrm Set

72

Inspected unit

Check code

P1
P2
P4
P5
P6
P8
P9

E4, E5

Beep output
beep O 1 time
beep O 2 time
beep O 4 time
beep O 5 time
beep O 6 time
beep O 8 time
beep O 2 time
Other than above

Operation LED

1 sec. O 1 time

1 sec.O 2 time
1 sec.O 4 time
1 sec.O 5 time
1 sec.O 6 time
1 sec.O 8 time
1 sec.O 2 time

Other than above

Indoor unit

Inspected unit

Check code

F1–F9

U0–UP

E6–EE

No check code

(normal)

Beep output

beep beep O 1 time

Other than above

No output

beep beep beep

Operation LED
(0.4sec+0.4sec)

O 1 time

Other than above

Lights off

Lights off

Outdoor

unit

No check code
(mistake of match­ing with refrigerant

address)

There are following two methods to cancel self-diagnosis:
Press the H “CHECK” button twice within three seconds.

➜Self-diagnosis is cancelled and the display screen will
return to the status before self-diagnosis.
Press the I “ON/OFF” button.

➜Self-diagnosis is cancelled and indoor unit will stop.
(This operation is ineffectual when operation is prohibited.)

5 Tor delete check code

When something is wrong with air conditioner, check code
(P1 etc.) is memorized, but check code can be deleted after
termination of service.

<To delete error record with remote controller>

(1)Display the error record at the self-diagnosis result dis-

play screen.

b) Alternating display

(2)The address for self-diagnosis will blink when the D

q <w> button is pressed twice within three seconds.

(3) The diagram below will be displayed when the error

record has been reset. Note that the error content will be
redisplayed if error record resetting is unsuccessful.

<To delete error record with switch of outdoor unit>

Refer to 9-2. Outdoor unit on page 66.

(2) Digital wireless remote controller

<In case of trouble during operation>

When a malfunction occurs to air conditioner, both indoor unit and outdoor unit will stop and operation lamp blinks to inform
unusual stop.

<Self-diagnosis method at maintenance service>

Direct transmitting section to receiving section at the operation of * mark.
(Make sure that beep sounds.)

1 Turn on the main power of air conditioner.
2 On the other side of wireless remote controller, change adjust switch to

“SET”.

A “FUNCTION”, “TEST RUN”, “CHECK” will blink alternately.

3 Press “HR” button.

B “CHECK” blinks.

Refrigerant address display “00” blinks.

4 Press the “ ”,“ ” button to set refrigerant address of air conditioner to self-

diagnose.

*5 Press the “HR” button, directing transmitting section to receiving section.

• The buzzer informs the latest error history of the unit to be checked
*6 Press the “ON/OFF” button to cancel check.
7 Be sure to turn adjust switch to “Nrm” after termination of check.

✽ Wireless remote controller can malfunction-diagnose refrigerant that is con-

nected to wireless unit.

• In case that air conditioner has malfunction, continuous beep and blinking of
operation lamp inform check code at the operation of 5.

(It takes 3 seconds, the maximum, for check code to appear.)

96

[Procedure]

ON/OFF

TEMP

FAN

VANE

MODE

CHECK

LOUVER

TEST RUN

AUTO STOP

AUTO START

h

min

RESET

SET

CLOCK

CHECK

CHECK
display

Temperature
button

CHECK
button

Refrigerant
address
display

HOUR
button

ON/OFF
button

1. Press the CHECK button twice.

•"CHECK" lights, and refrigerant
address "00" flashes.

•Check that the remote controller's
display has stopped before continuing.

2. Press the temperature
buttons.

3. Point the remote controller at the
sensor on the indoor unit and
press the HOUR button.

4. Point the remote controller at the
sensor on the indoor unit and
press the ON/OFF button.

•Select the refrigerant address of the
indoor unit for the self-diagnosis.

Note: The refrigerant address is set using

the outdoor unit's dip switch (SW1).
(For more information, see the
outdoor unit installation manual.)

•If an air conditioner error occurs, the
indoor unit's sensor emits an intermittent
buzzer sound, the operation light
flashes, and the inspection code is
output.

•The check mode is released.

97

12-1-2. Remote controller Diagnosis

If operation can not be carried out from remote controller, try
remote controller diagnosis with following process.

1

a)

1 First, check the electricity current marker.

When correct voltage (DC12V) is not supplied to remote
controller, the electricity current marker is put out.
If the electricity current marker is not lighted, check the
remote controller wiring and the indoor units.

a) Electric current marker

2

3(1)

(2)

(3)

(4)

b)

2 Transfer to remote controller diagnosis mode

Hold down the H “CHECK” button for five seconds or more,
and following display appears.

Press the A “FILTER” button, and remote controller diagno­sis will begin.

3 Remote controller diagnosis result

(1) When the remote controller is functioning correctly

Check other possible causes, as there is no problem
with remote controller.
Consider the unit is normal when remote controller trans­mits the result of diagnosis to indoor or outdoor unit, and
receives the same data back.

(2) When remote controller has malfunction

The remote controller must be replaced.
If the transmitting-receiving circuit is deffective, [‘NG’]
blinks.
"NG" will be displayed when remote controller transmits
the result of diagnosis to indoor or outdoor unit, and
receives no response.

When there might be other problems than diagnosed remote
controller,

(3) There might be ‘noise’ on transmission path or damage

of other remote controllers or indoor units. Check the

transmission path and other controllers.
If the transmission is not possible, [E3] blinks.
"E3" will be displayed when remote controller transmits
the result of diagnosis to indoor or outdoor unit and
receives different data back.

(4) The number of data errors is the number of margin

between the number of generated data from the remote

controller and the actual number of bits that were trans-

mitted along the transmission path. If the data error is

displayed, noise and the like are interfering with the

transmission data. Check the transmission path.
If the data error has occurred, [ERC] and number of data
errors are displayed.

b) Number of generated data errors (maximum 66 errors)

When the number of data errors is 02.
Transmission data from remote controller
Transmission data on transmission path

4 Cancel the remote controller diagnosis

Hold down the H “CHECK” button for five seconds or more
to cancel remote controller diagnosis, then [H0] operation
lamp will blink and the display screen will return to the sta­tus before remote controller diagnosis in about 30 seconds.

98

12-2. Trouble shooting by inferior phenomena

Phenomena Factor Countermeasure

(1)Remote controller display does not

work.
(Electric current marker “ ” is not
displayed on the remote controller.)

Indoor control p.c.board LED

LED1

off off off

1

Lighting off

2

Lighting

3

(2)Remaining “H0” display on the

remote controller.

(3)When pressing the remote controller

operation switch the OPERATION
display is appeared but it will be
turned off soon.

(4)Even controlling by the wireless

remote controller no beep and not
working. (Display is available on the
wireless remote controller)

(5)When operating by the wireless

remote controller, beep sound is
heard without working.

(6)Upward/downward vane perfor-

mance fault.

LED2 LED3

(or blinking)

Blinking

(or lighting)

off

–

1Main power is not turned on. (Power supply inferior)
2Mis-wiring, breaking or contact failure of the connect-

1Refrigerant address excepts “0”.
2Mis-wiring, breaking or contact failure of the connect-

1Short circuit, miswiring and breaking

1At longest 2 minutes after the power supply “H0” is

1Communication fault between the remote controller
2Communication fault between the indoor and outdoor.

3Outdoor unit protection device is opened.

1After cancelling to select function from the remote

1The pair number settings of the wireless remote
2Disconnecting of wireless receiving board and contact
3Factor of the above (1).

1No operation for max. 2 minutes after the power sup-
2Remote operation is prohibited.

3Factor of the above (2).
1When the unit is as follows in the HEAT mode, the

2When setting the downward vane in the cool/dry

3Vane motor does mot rotate.

4Standard position reading fault (Vane motor does not

Reference (Meaning of the indoor control board LED)

LED1 : Micro computer power supply

....Display of DC14V is supply or not from indoor power.

LED2 : Power output supplied to remote controller

....Display the power condition supplied to wired remote controller. When the

refrigerant address is “0” supplied power output ON.

LED3 : Indoor outdoor communication monitor

....Blinking, when receiving the signal normally from the outdoor unit.

ing line.

ing line.

displayed to start up.

and indoor.

(Abnormal code will be displayed after 2~6 minutes.)

controller, the remote controller operation switch will
be not accepted for approx 30 seconds.

controller and indoor control PCB are mismatched.
failure.

ply ON.

•Remote controlling adaptor is connected to the
indoor control board (CN32).

•Remote operation is prohibited by centralised con­troller etc. since it is connected to MELANS.

vane is not downward.
(Working of COOL protection function)

•During HEAT preparation.

•During defrosting.

•During compressor stop.

mode, the vane changes to Horizontal position after 1
hour.

A) Vane motor fault.
B) Disconnecting, breaking and contact fault of the

connector.

C) Setting to no vane unit.

stop).

A) Limited switch fault.
B) Disconnecting breaking and contact fault of the

connector.

w Only AC timing motor adopting mode. (No limited

switch for stepping motor adopting model.)

1

Check the power wiring to the outdoor unit and the breaker.

2

Check for incorrect wiring, wiring breaks and poor
connections between the indoor and outdoor units.

1

Set the refrigerant address to "0" (only 1 refrigerant can be
"0" for group control).

2

Check for incorrect wiring, wiring breaks and poor
connections between the indoor and outdoor units.

Check for shorts, incorrect wiring and wiring breaks in the

1

remote controller wires.

2

Replace the remote controller if the voltage to the remote
controller terminal block (TB6) is between 10 and 14V DC.

Normal operation

Turn the power supply OFF/ON, and check the following:

1

If an error is displayed on the remote controller or outdoor
unit's LED within 6 minutes:
Refer to the self-diagnosis table on p. 101 to take
appropriate action.

2

If "H0" display remains for 6 minutes:
Failure in indoor control PCB or remote controller

Normal operation

1Check the pair number settings.
2Check the indoor control board connector

(CN90).
Check the wireless receiving board con­nector (CNB)

3Check the details of above (1).
1Normal operation

2Normal operation

3Check the details of above (2).

1Normal operation
2Normal operation

3 A) Vane motor resistance value check.

B) Disconnecting, breaking, and contact

fault of the connector.
Stepping motor adopting model

.... CN6V check

AC timing motor adopting model

.... CNV check

C) Check the setting details by selecting

the remote controller function.
Setting check of the indoor control
board J11~J15 (SW1).

4 A) Limiteds witch (LS) conductance

check.

B) Check the removing of indoor control

board (CN23), breaking line and con­tact fault.

99

Phenomena Factor Countermeasure

(7)Left/right louver performance fault.

1Louver motor fault.
2Disconnecting, breaking and contact fault of the con-

nector.

1Louver motor resistance value check
2Check the removing of indoor control

p.c.board (CNL) breaking line and contact
fault.

(8)Though the remote controller dis-

play is normal in cool mode, the
capacity is not enough.

(9)Though the remote controller dis-

play is normal in Heat mode, the
capacity is not enough.

1Filter clogging (dirt)

2Heat exchanger clogging (dirt)

3Air duct short cycle.
4Refrigerant shortage.
5Operation failure in electronic expansion valve

6Thermistor connection failure
7Incorrect piping size
8Piping is too long.

1Filter clogging (dirt)

2Heat exchanger clogging (dirt)

3Air duct short cycle.
4Refrigerant shortage.
5Outdoor unit bypass circuit failure
6Indoor reverse check valve failure

Reverse check valve failure may cause refrigerant
leakage and restrictor failure.

7Heat insulator of refrigerant pipes is defective.
8Malfunction of LEV.
9Loose connection in thermistor.

1Open the grille to check the filter.

Clean the filter and remove dust or dirt
away.

2Clean the heat exchanger.

Lowering the indoor piping temperature
and intake pressure means clogging in the
heat exchanger.

3Remove screen in the air duct (air outlet/

intake).

4Check if gas leaks or not in the piping

joint.

5,6Check the refrigerant circuit operation

status.

7Check the piping size.
8Check the capacity loss characteristic for

the piping length.

1Open the grille to check the filter.

Clean the filter and remove dust or dirt
away.

2Clean the heat exchanger.

Rising the indoor piping temperature and
outlet pressure means clogging in the heat
exchanger.

3Remove screen in the air duct (air outlet/

intake).

4Check if gas leaks or not in the piping

joint.

5Operating condition check in the refriger-

ant cycle.

6Since outlet temperature and indoor heat

exchanger temperature does not rise,
measure the outlet pressure and deter­mine the countermeasure.

7Check the heat insulator.
8,9Check the function of refrigerant circuit.

100