Mitsubishi PUH-1.6VKA3.UK, PUH-2NKA1.K, PUH-2VKA2.UK, PUH-2.5VKA2.UK, PUH-3VKA2.UK Service Manual

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

OUTDOOR UNIT

TECHNICAL & SERVICE MANUAL

Outdoor unit [Model names] [Service Ref.]

1997

No.OC150

REVISED EDITION-A

PUH-1.6VKA PUH-1.6VKA PUH-2VKA,2NKA PUH-2VKA

2

.UK,PUH-2NKA1.UK

PUH-2.5VKA,2.5NKA PUH-2.5VKA PUH-3VKA,3NKA PUH-3VKA PUH-3YKA PUH-3YKA PUH-4YKSA,4TKSA PUH-4YKSA PUH-5YKSA PUH-5YKSA PUH-6YKSA PUH-6YKSA

2

.UK,PUH-3NKA1.UK

2

.UK

2 2 2

CONTENTS

1.

COMBINATION OF INDOOR AND OUTDOOR UNITS

2. PART NAMES AND FUNCTIONS·····················3

3. DATA··································································4

4. OUTLINES AND DIMENSIONS························5

5. WIRING DIAGRAM ···········································9

6.

REFRIGERANT SYSTEM DIAGRAM

7. DISASSEMBLY PROCEDURE ·······················19

8. PARTS LIST····················································21

9. OPTIONAL PARTS ························Back Cover

3

.UK

2

.UK,PUH-2.5NKA1.UK

.UK,4TKSA1.UK .UK .UK

················17

·····2

Revision:

●Parts List has been partially modified.

(Marking W in the PARTS LIST has been

changed the PARTS LIST in OC150.)

●Please discard OC150.

The Slim Line. From Mitsubishi Electric.

1 COMBINATION OF INDOOR AND OUTDOOR UNITS

Indoor unit Outdoor unit

Service Ref.

PLH-GKH(S)B1·UK PLH-GK(S)B1·UK PLH-GKH(S)B PLH-GK(S)B

1

PLH-KKHB·UK PLH-KKB·UK

)A

1

2

PCH-GKH(S PCH-GK(S PKH-1.6/2FKHA3, 2.5/3/4FKH(S)A PKH-2FKA3, 2.5/3/4FK(S)A2

PSH-GJH(S)A

1

PEHD-EKH(S)A·UK PEHD-EK(S)A·UK

Service

Manual No.

OC148 OC139

OC107 OC147 OC119 OC135 OC136 OC130 OC132

OC142

—

1.6

VKA,VKA3.UK

— — — —

— — —

VKA2.UK

— — — —

—

— —

NKA1.UK

— — — — —

— — —

— — — —

VKA2.UK

— — — —

— —

NKA1.UK

— — — — —

— — —

— — — —

VKA2.UK

— —

342 2.5

YKA2.UK

— —

NKA1.UK

—

— — — — —

—

YKSA2.UK

— —

TKSA1.UK

—

— — — — —

—

5

YKSA2.UK

—

— — —

— —

6

YKSA2.UK

—

— — —

— —

2

2 PART NAMES AND FUNCTIONS

PUH-1.6VKA3,2VKA2,2NKA1·UK

Air intake

Air outlet (Expels warm air during cooling)

PUH-4YKSA2·UK

4TKSA

1·UK

Air intake

Air outlet

PUH-5YKSA2·UK

6YKSA

2·UK

Air intake

Air outlet

PUH-2.5VKA2,2.5NKA1,3VKA2,3YKA2,3NKA1·UK

Air intake

Air outlet

CHARGELESS SYSTEM PRE-CHARGED REFRIGERANT IS SUPPLIED FOR UP TO 30m PIPING LENGTH AT SHIPMENT.

The unique refrigerant circuit and a large accumulator always control the optimal refrigerant level regardless of the length (50m max. and 5m min.) of piping. The additional refrigerant charging work during installation often causes problems. Therefore, it is completely eliminated. This unique system improves the quality and reliability of the work done. It also helps to speed up the installation work.

3

3 DATA

1. REFILLING REFRIGERANT CHARGE (R-22 : kg)

Service Ref.

PUH-1.6VKA3·UK PUH-2VKA

PUH-2NKA PUH-2.5VKA PUH-2.5NKA PUH-3VKA PUH-3NKA

PUH-3YKA PUH-4YKSA

PUH-4TKSA PUH-5YKSA

PUH-6YKSA

2·UK

1·UK

2·UK

1·UK

2·UK

1·UK

2·UK

2

·UK

1

·UK

2·UK 2·UK

5m

1.5

2.1

2.5

3.5

4.0

4.7

4.3

10m

1.7

2.3

2.7

3.6

4.1

4.8

4.4

15m

1.8

2.4

2.8

3.8

4.3

5.0

4.6

2. COMPRESSOR TECHNICAL DATA

Outdoor unit

Compressor Model

Winding

Resistance

(Ω)

at 20˚C

U-V

(

R-C

U-W

(

S-C

W-V

PUH-1.6

VKA

RH247VFC

2.00

)

4.55

)

3

—

·UK

PUH-2

2

VKA

·UK

NH38VMD

1.05

2.23 —

PUH-2

NKA

NHJ33NBD

0.70

1.44 —

Refrigerant piping length (one way)

1

·UK

20m

1.9

2.5

2.9

3.9

4.4

5.1

4.7

PUH-2.5

VKA

NH41VMD

1.03

2.22 —

2

·UK

25m

2.1

2.7

3.1

4.1

4.6

5.3

4.9

PUH-2.5

1

NKA

·UK

NHJ38NBD

0.70

1.42 —

30m

2.2

2.8

3.2

4.2

4.7

5.4

5.0

PUH-3

2

VKA

·UK

NH52VND

0.83

2.03 —

35m

2.3

2.9

3.3

4.4

4.9

5.6

5.2

PUH-3

1

NKA

·UK

NHJ47NAD

0.58

1.14 —

40m

2.4

3.0

3.4

4.5

5.0

5.7

5.3

PUH-3

2

YKA

·UK

NH52YDA

3.60

45m

— —

3.1

3.6

4.6

5.1

5.9

5.5

PUH-4

2

YKSA

·UK

NH56YDA

3.50

50m

— —

3.3

3.7

4.8

5.3

6.0

5.6

PUH-4

1

TKSA

·UK

NHJ56TKA

0.83

Outdoor unit

Compressor Model Winding

Resistance

(Ω)

at 25˚C

1-T2

T T2-T T3-T

PUH-5YKSA

ZR61K3TFD

2.53-2.91

3

1

2.53-2.91

2

·UK

PUH-6YKSA2·UK

ZR68KCTFD

2.31

4

4 OUTLINES AND DIMENSIONS

100 10

1000For 10 units or less

200

Outdoor Unit-Necessary surrounding clearance

(Concentrated installation)

The upper side must be open.

Outdoor Unit-Necessary surrounding clearance

200

10

Note:Allow adequate

upper clearance

100

500

Service space

Front opening

Handle

for moving

138

95

Rear piping hole

23

33

Rear fresh

air intake

Side air intake

7 24(1)295(11-5/8)

Outlet guide

installation hole

302

Air intake

Air outlet

870(34-1/4)

185

(7-9/32)

185

(7-9/32)

500(19-11/16)

330(13)

362(14-1/4)

1715

39.5 27.5 Terminal block for indoor and outdoor unit connection

Terminal block for power line and Ground terminal

Handle for moving

77

524

339

282

297

444

650 (25-5/8)

40 60524

Service panel

Refrigerant-pipe flared

connection

[15.88 3/8F

Refrigerant-pipe flared

connection

[9.52 3/8F

Knock out hole

for front piping

(refrigerant,drainage

and wiring)

Knock out hole

for right piping

(refrigerant,drainage

and wiring)

R

20

R20

60

120

4553

25 max.

Knock out holes for

power line 2-[27

Standard bolt length

65

Front right piping holes-

detail figures

80

17

42

45

12

R6

104

33

Bottom

piping hole

2-U-shaped

notched

holes

Drain hole

2-12o23 Oval holes

(standard bolt M10)

Handle for moving

PUH-1.6VKA3·UK,PUH-2VKA2·UK,PUH-2NKA1·UK Unit : mm (inch)

5

100 10

1000For 10 units or less

200

Outdoor Unit-Necessary surrounding clearance

(Concentrated installation)

The upper side must be open.

Outdoor Unit-Necessary surrounding clearance

200

10

Note:Allow adequate

upper clearance

100

500

Service space

Front opening

Handle

for moving

138

95

Rear piping hole

23

33

Rear fresh

air intake

Side air intake

7 24(1)295(11-5/8)

Outlet guide

installation hole

302

Air intake

Air outlet

870(34-1/4)

185

(7-9/32)

185

(7-9/32)

500(19-11/16)

330(13)

362(14-1/4)

1715

39.5 27.5 Terminal block for indoor and outdoor unit connection

Terminal block for power line and Ground terminal

Handle for moving

179 524

441

337

352

403

553

850(33-7/16)

40 60524

Service panel

Refrigerant-pipe flared

connection [15.88 5/8F

Refrigerant-pipe flared

connection [9.52 3/8F

Knock out hole

for front piping

(refrigerant,drainage

and wiring)

Knock out hole

for right piping

(refrigerant,drainage

and wiring)

R

20

R20

60

120

4553

25 max.

Knock out holes for

power line 2-[27

Standard bolt length

65

Front right piping holes-

detail figures

80

17

42

45

12

R6

104

33

Bottom

piping hole

2-U-shaped

notched

holes

Drain hole

2-12o23 Oval holes

(standard bolt M10)

Handle for moving

PUH-2.5VKA2·UK,PUH-3VKA2·UK,PUH-3YKA2·UK Unit : mm (inch) PUH-2.5NKA1·UK,PUH-3NKA1·UK

6

PUH-4YKSA2·UK,PUH-4TKSA1·UK Unit : mm (inch)

4553

300

Note:Allow adequate

upper clearance

10

Front opening

10

Outdoor Unit-Necessary surrounding clearance

1715

185

(7-9/32)

100

500

Service space

500

10

Terminal block for

indoor and outdoor

unit connection

362(14-1/4)

330(13)

39.5 27.5

Terminal block for power line

and Ground terminal

Service panel

Handle

for moving

Refrigerant-pipe flared

1258(49-1/2)

959

Knock out holes for

60

connection [19.05 3/4F

Refrigerant-pipe flared

connection [9.52 3/8F

Knock out hole

for front piping

403

382

power line 2-[27

120

(refrigerant,drainage

and wiring)

104

R20

20

R

Knock out hole

for right piping

(refrigerant,

57 52

Bottom

39

drainage and wiring)

25 max.

80

R6

piping hole

2-U-shaped

Standard bolt length

65

Front right piping holes-

detail figures

17

12

notched

holes

Air intake

500(19-11/16)

185

(7-9/32)

Air intake

300

1000For 10 units or less

The upper side must be open.

870(34-1/4)

302

Air outlet

Outlet guide

installation hole

7 24(1)295(11-5/8)

52461

Side air intake

585

Handle for moving

Rear fresh

air intake

345

2-12o23 Oval holes

(standard bolt M10)

83 524

40 60524

Drain hole

33

23

Drain hole

Outdoor Unit-Necessary surrounding clearance

(Concentrated installation)

150 10

Handle

for moving

Rear piping hole

95

138

7

PUH-5YKSA2·UK,PUH-6YKSA2·UK Unit : mm (inch)

150 10

1000For 10 units or less

300

Outdoor Unit-Necessary surrounding clearance

(Concentrated installation)

Outdoor Unit-Necessary surrounding clearance

The upper side must be open.

Handle

for moving

138

95

Rear piping hole

23

33

Rear fresh

air intake

Side air intake

7 24(1)345(13-9/16)

Outlet guide

installation hole

352

Air intake

Air outlet

970(38-3/16)

185

(7-9/32)

185

(7-9/32)

600(23-5/8)

380(14-31/32)

412(16-1/4)

1715

39.5 27.5

Terminal block for

indoor and outdoor

unit connection

Terminal block for power line

and Ground terminal

300

10

Note:Allow adequate

upper clearance

150

500

Service space

Handle for moving

52461

585

83 524

345

382

403

959

1258(49-1/2)

90 60524

Service panel

Handle

for moving

Refrigerant-pipe flared

connection [19.05 3/4F

Refrigerant-pipe flared

connection [9.52 3/8F

Knock out hole

for front piping

(refrigerant,drainage

and wiring)

Knock out hole

for right piping

(refrigerant,

drainage and wiring)

R

20

R20

60

120

4553

25 max.

Knock out holes for

power line 2-[27

Standard bolt length

65

Front right piping holes-

detail figures

80

17

52

57

12

R6

104

39

Bottom

piping hole

2-U-shaped

notched

holes

Drain hole

2-12o23 Oval holes

(standard bolt M10)

Front opening

8

5 WIRING DIAGRAM

8

7

6

2

1 5

GRY

63H2

X16

VLT

RED

N

BLU

1

230V

ORN

RED

4 3

WHT RED ORN

BLU

WHT

2

X11X12X13

1234

CN2

63H1

BRN

3

1

X13X14

X14

SV

RED

21R

21S4

21

S4

BLU

MF

ORN

C1

RED

52C

L1/1

L3/5

T3/6

T1/2

BLU WHT BLU

C2

S

C

MC

R

63H1

BRN

GRN/YLW

T

ORN

YLW

1 2

TB3

L

RED AC12.3V

BRN AC12.3V

RED

YLW

BLU

RED

240V

220V

4

1234

CN4T

CN3

2

3

12

SW3

SW2

O.B

SW1

TO INDOOR UNIT CONNECTING WIRES DC 12V (polar)

TB1

POWER SUPPLY ~(1PHASE) 220—240V 50Hz

ON

OFF

LD7

LD1

LD2

LD3

LD4

LD5

LD6

LD8

F

5

RT

X11X12

CN4

TRF 52C

WHT

GRY

A1

A2

52C

HC

CH

ZNR

R/1 S/2 T/3

BLU BLU

YLW

BLU

FC

26C

63H2

51CM

MF2

MF1

PUH-1.6VKA3·UK

SYMBOL HC C1 C2 FC<O.B

>

F<O.B 21S4 21R LD1~LD8

CRANKCASE HEATER FAN MOTOR CAPACITOR COMPRESSOR CAPACITOR

>

FAN CONTROLLER FUSE(6A 4-WAY VALVE SOLENOID COIL BYPASS VALVE SOLENOID COIL LED(CHECK, SERVICE)

NAME

)

SYMBOL MC MF O.B SW1·2·3<O.B T TB1,3 RT X11<O.B>

COMPRESSOR MOTOR(INNER THERMOSTAT)

NAME

FAN MOTOR (INDOOR THERMOSTAT) OUTDOOR CONTROLLER BOARD

>

SELECT SWITCH(CHECK,SERVICE) TRANSFORMER TERMINAL BLOCK

OUTDOOR COIL THERMISTOR (

0˚C/15kΩ,25˚C/5.4kΩ

)

HC RELAY

SYMBOL X12<O.B X13<O.B X14<O.B X16 ZNR<O.B> 52C 63H1 63H2

>

COMPRESSOR RELAY

>

21S4 RELAY

>

21R RELAY HIGH PRESSURE RELAY VARISTOR COMPRESSOR CONTACTOR HIGH PRESSURE SWITCH PROTECTIVE HIGH PRESSURE SWITCH

NAME

Main functions of LED

LED No.

NOTES : 1. If the operation of the protection device stops to function. then check the display flashes.

CAUTIONS FOR SERVICING

●

Connect the lead wires according to the color indication of sticker on the compressor terminal.

CAUTIONS FOR POWER SUPPLY WIRING

●

Since LD8 lights when normal power is furned ”ON”, check the power supply with the ON or OFF LD8.

w

Since the transformer (T) is connected with 240V power, if 220V or 230V power is used,

change the wiring connection in the following procedure.

CAUTION FOR INDOOR AND OUTDOOR CONNECTING WIRES

●

Since the indoor and outdoor connecting wires has polarity, make sure to connect the same terminal numbers (1,2,3) for indoor and outdoor units.

LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8

Compressor indoor command Heating indoor command 63H1 ON Compressor ON Outdoor fan ON 4-way valve ON Bypass valve ON Crankcase heater ON

(

when both Nos.1 and 2 of are ”OFF”

Output display (light

2. Symblos used in wiring diagram above are.

)

SW3

Pipe temp. sensor short/open

)

Check display (flash

— —

How to use SW1 and 2

●

)

Pressing erases the past check contents loaded on the microcomputer.

●

The output display (light) remains lit during operation but pressing displays the past check contents in flashing mode. Pressing the switch again returns to output display (light).

26C functions RT overheat protecyion Defective input

/:Terminal block :Connector :PC board insertion tab.

SW1

SW2

wWhen power supply is 220V YELLOW

ORANGE

RED

240V 230V 220V

WHITE

9

PUH-2VKA2·UK,PUH-2.5VKA2·UK,PUH-3VKA2·UK

5

1

2

6

8

7

GRY

63H2

X16

GRY

A2

52C

A1

GRY

VLT

X16

63H2

N

L

TB1

RED

BLU

RED BLU

GRN/YLW

52C

RED

C2

BLU

BLUBLU

5

MF2

RED

LED

O.B

LD8

LD7

LD6

LD5

LD4

LD3

LD2

63H1

YLW

BRN

HC

WHT

BLU

RED

S

C

R

BLU

WHT

BLU

T2/6

T1/2

L3/5

L1/1

WHT

220V

230V

240V

RED

ORN

YLW

T

AC12.3V

AC

12.3V

BRN

RED

C1

ORN

RED

BLU

WHT

ORN

BLU

WHT

F.C

MF1

R

ST

26C

63H1

51CM

F

ZNR

CH52C21S4TRFSV

X11X12X13X14

4

123

CN4T

4

1234

CN4

TH

LD1

CN2

CN3

1

2

3

12

ON

OFF

SW3

SW2

SW1

TB3

BRN

ORN

YLW

3

2

1

POWER SUPPLY ~(1PHASE) 220—240V 50Hz

TO INDOOR UNIT CONNECTING WIRES DC 12V

MF

1

2

4

3

MC

21R

21

S4

X11X12X13X14

SYMBOL

CN3(O.B

)

CN4T(O.B HC C1 C2

)

FC(O.B

)

F(O.B LD1-LD8(O.B

CONNECTOR (CONNECTING) WIRES INDOOR/OUTDOOR

)

CONNECTOR(TRANSFORMER) CRANKCASE HEATER FAN MOTOR CAPACITOR RUN CAPACITOR FOR MC FAN CONTROLLER FUSE(6A

)

LED(CHECK,SERVICE)

NAME

)

SYMBOL MC MF O.B 21R SW1·2·3(O.B T TB1,3 TH X11(O.B

)

COMPRESSOR FAN MOTOR OUTDOOR CONTROLLER BOARD BYPASS VALVE SOLENOID COIL

)

SELECT SWITCH(CHECK,SERVICE) TRANSFORMER TERMINAL BLOCK OUTDOOR COIL THERMISTOR CRANKCASE HEATER RELAY

NAME

SYMBOL X12(O.B X13(O.B X14(O.B

) ) )

X16 ZNR<O.B> 21S4 52C 63H1 63H2

COMPRESSOR RELAY

NAME

SOLENOID COIL RELAY SOLENOID COIL RELAY HIGH PRESSURE RELAY SURGE ABSORBER 4-WAY VALVE SOLENOID COIL CONPRESSOR CONTACTOR CONTROL HIGH PRESSURE SWITCH PROTECTIVE HIGH PRESSURE SWITCH

Main functions of LED

LED No.

LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8

Compressor indoor command Heating indoor command 63H1 ON Compressor ON Outdoor fan ON 4-way valve ON Bypass valve ON Crankcase heater ON

NOTE : If the operation of the protection device stops to function. then check the display flashes.

CAUTIONS FOR SERVICING

●

Connect the lead wires according to the color indication of sticker on the compressor terminal.

CAUTIONS FOR POWER SUPPLY WIRING

●

Since LD8 lights when normal power is furned ”ON”, check the power supply with the ON or OFF LD8.

w

Since the transformer (T) is connected with 240V power, if 220V or 230V power is used,

(

when both Nos.1 and 2 of are ”OFF”

Output display (light

change the wiring connection in the following procedure.

CAUTION FOR INDOOR AND OUTDOOR CONNECTING WIRES

●

Since the indoor and outdoor connecting wires has polarity, make sure to connect the same terminal numbers (1,2,3) for indoor and outdoor units.

10

)

SW3

Pipe sensor short/open

TH overheat protecyion Defective input

)

Check display (flash

— —

— — —

)

How to use SW1 and 2

●

Pressing erases the past check contents loaded on the microcomputer.

●

The output display (light) remains lit during operation but pressing displays the past check contents in flashing mode. Pressing the switch again returns to output display (light).

SW1

SW2

wWhen power supply is 220V YELLOW ORANGE

RED

240V 230V 220V

WHITE

PUH-2NKA1·UK,PUH-2.5NKA1·UK,PUH-3NKA1·UK

SYMBOL HC C1 C2 FC<O.B> F<O.B> LD1~LD8 MC MF

TO INDOOR UNIT CONNECTING WIRES DC 12V (polar)

POWER SUPPLY ~(1PHASE) 220V—60Hz

CRANKCASE HEATER FAN MOTOR CAPACITOR COMPRESSOR CAPACITOR FAN CONTROLLER FUSE(6A) LED(CHECK,SERVICE) COMPRESSOR MOTOR(INNER THERMOSTAT) FAN MOTOR(INNER THERMOSTAT)

1 2 3

TB3

BRN AC12.3V

RED AC12.3V

NAME

YLW ORN BRN

TB1

GRN/YLW

SYMBOL O.B RT SW1·2·3(OB) T TB1,3 X11(O.B X12(O.B X13(O.B

RT

O.B

SW1

SW2

LD1

SW3

OFF ON

12

3 2

CN3

1

CN4T

YLW

240V

ORN

230V

RED

220V

T

L N

RED BLU

LD7

LD2

LD3

LD4

LD5

LD6

LD8

4

1234

SV

RED

21R

L1/1

L3/5

OUTDOOR CONTROLLER BOARD

OUTDOOR COIL THERMISTOR (

0˚C/15kΩ,25˚C/5.4kΩ

SELECT SWITCH(CHECK,SERVICE) TRANSFORMER TERMINAL BLOCK

)

HC RELAY

)

COMPRESSOR RELAY

)

SOLENOID COIL RELAY

CN2

X14

WHT

X13X14

21S4

TRF 52C

BLU

21

S4

52C

T1/2

T3/6

GRY

BLU WHT BLU

NAME

X11X12

GRY

A1

52C

A2

SYMBOL

63H1

)

SOLENOID COIL RELAY

)

VARISTOR 4-WAY VALVE SOLENOID COIL BYPASS VALVE SOLENOID COIL COMPRESSOR CONTACTOR HIGH PRESSURE SWITCH

5

BRN

YLW

63H1

)

ZNR(O.B 21S4 21R 52C 63H1

1234

CN4

X11X12X13

F

ZNR

X14(O.B

CH

WHT

RED

C2

HC

R/1 S/2 T/3

R

C

MC

S

BLU BLU

NAME

FC

26C

MF2

63H2

MF1

51CM

BLU

YLW

MF

BLU WHT RED ORN

BLU

WHT

4 3

RED

2

C1

1

ORN

Main functions of LED

LED No.

LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8

Output display (light Compressor indoor command Heating indoor command 63H1 ON Compressor ON Outdoor fan ON 4-way valve ON Bypass valve ON Crankcase heater ON

(

when both Nos.1 and 2 of are ”OFF”

SW3

)

Pipe temp. sensor short/open

RT overheat protecyion Defective input

)

Check display (flash

— —

— — —

How to use SW1 and 2

●

)

Pressing erases the past check contents loaded on the microcomputer.

●

The output display (light) remains lit during operation but pressing displays the past check contents in flashing mode. Pressing the switch again returns to output display (light).

SW1

SW2

NOTES : 1. If the operation of the protection device stops to function. then check the display flashes.

2. Symblos used in wiring diagram above are. /:Terminal block :Connector :PC board insertion tab.

CAUTIONS FOR SERVICING

●

Connect the lead wires according to the color indication of sticker on the compressor terminal.

CAUTIONS FOR POWER SUPPLY WIRING

●

Since LD8 lights when normal power is furned ”ON”, check the power supply with the ON or OFF LD8.

w

Since the transformer (T) is connected with 240V power, if 220V or 230V power is used,

change the wiring connection in the following procedure.

CAUTION FOR INDOOR AND OUTDOOR CONNECTING WIRES

●

Since the indoor and outdoor connecting wires has polarity, make sure to connect the same terminal numbers (1,2,3) for indoor and outdoor units.

11

PUH-3YKA2·UK

L1L2L3

Power line reconnoction procedure In case of reverse rotation

Unit side wiring

Outdoor unit terminal

Field wiring

Change thie side

Change 2 out of 1. 2 and 3. (This example shows reconnection of 1 and 2.)

123

5

1

2

6

8

7

A2

A1

GRY

52C

GRY

63H2

X16

63H2

26C

YLW

N

L3

L2

L1

TB1

WHT

RED

RED WHT

BLK BLU

BLK

GRN/YLW

LED

O.B

LD8

LD7

LD6

LD5

LD4

LD3

LD2

95

96

X1651C63H1

VLT

ORN

BRN

HC

WHT

BLU

RED

W

V

U

BLU

WHT

RED

51C

T3/6

T2/4

T1/2

52C

L3/5

L2/3

L1/1

WHT

220V

230V

240V

RED

ORN

YLW

T

AC12.3V

AC

12.3V

BRN

RED

C

ORN

RED

BLU

WHT

ORN

RED

BLU

WHT

F.C

MF1

MF2

R

ST

26C

63H1

51C

5

F

ZNR

CH52C21S4TRFSV

X11X12X13X14

4

123

CN4T

4

1234

CN4

TH

LD1

CN2

CN3

1

2

3

12

ON

OFF

SW3

SW2

SW1

TB3

BRN

ORN

YLW

3

2

1

POWER SUPPLY 3N~(3PHASE 4WIRES) 380/220—415/240V 50Hz

TO INDOOR UNIT CONNECTING WIRES DC 12V

MF

1

2

4

3

MC

21R

21 S4

X11X12X13X14

SYMBOL

CN3<O.B CN4T<O.B

C FC<O.B F<O.B HC LD1-LD8<O.B MC MF

>

CONNECTOR (CONNECTING WIRES INDOOR/OUTDOOR)

>

CONNECTOR (TRANSFORMER) FAN MOTOR CAPACITOR

>

FAN CONTROLLER

>

FUSE(6A CRANKCASE HEATER

>

LED(CHECK,SERVICE) COMPRESSOR FAN MOTOR

NAME

)

SYMBOL O.B SW1·2·3<O.B T TB1,3 TH X11<O.B X12<O.B X13<O.B X14<O.B X16

OUTDOOR CONTROLLER BOARD

NAME

>

SELECT SWITCH(CHECK,SERVICE) TRANSFORMER TERMINAL BLOCK OUTDOOR COIL TERMISTOR

>

CRANKCASE HEATER RELAY

>

COMPRESSOR RELAY

>

SOLENOID COIL RELAY

>

SOLENOID COIL RELAY HIGH PRESSURE RELAY

SYMBOL ZNR<O.B> 21R 21S4 26C 51C 52C 63H1 63H2

SURGE ABSORBER

NAME

BYPASS VALVE SOLENOID COIL 4-WAY VALVE SOLENOID COIL THERMAL SWITCH THERMAL RELAY COMPRESSOR CONTACTOR CONTROL HIGH PRESSURE SWITCH PROTECTIVE HIGH PRESSURE SWITCH

Main functions of LED

LED No.

LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8

NOTE : If the operation stops to function of the protection device, the check display flashes.

CAUTIONS FOR SERVICING

●

Connect the lead wires according to the color indication of sticker on the compressor terminal.

CAUTIONS FOR POWER SUPPLY WIRING

●

Making wiring connection in anti-phase or missing phase “A2” or “A3” causes the protection device incorporated in the

Output display (light Compressor indoor command Heating indoor command 63H1 ON Compressor ON Outdoor fan ON 4-way valve ON Bypass valve ON Crankcase heater ON

microcomputer to function resulting in LD1 or LD2 shown in the table above to flash and prevents the compressor operation. If phase “A1” or “N” is missing it causes all displays to go out. Under normal condition LD8 light when power is turned “ON”. If anti-phase connection is to be used, change connections of 2 out of 3 power lines (field wiring side) contained in the power supply terminal block (TB1) of the outdoor unit as shown at the right upper.

w

Since the transformer (T) is connected with 240V power, if 220V or 230V power is used, change the wiring connection

in the following procedure.

CAUTION FOR INDOOR AND OUTDOOR CONNECTING WIRES

●

Since the indoor and outdoor connecting wires has polarity, make sure to connect the same terminal numbers (1,2,3) for indoor and outdoor units.

12

(

when both Nos.1 and 2 of are “OFF”

)

SW3

Check display (flash Anti-phase detect Missing-phase detect Pipe sensor short/open

51C functions 26C functions TH overheat protection Defective input

)

—

How to use SW1 and 2

●

Pressing erases the past check contents loaded on the microcomputer.

●

The output display (light) remains lit during operation but pressing displays the past check contents in flashing mode. Pressing the switch again returns to output display (light).

SW1

SW2

wWhen power supply is 220V YELLOW ORANGE

RED

240V 230V 220V

WHITE

PUH-4YKSA2·UK

SYMBOL

CN3<O.B CN4T<O.B

C1,2 FC<O.B F<O.B HC LD1-LD8<O.B MC MF1,2

POWER SUPPLY 3N~(3PHASE 4WIRES) 380/220 — 415/240V 50Hz

>

CONNECTOR (CONNECTING WIRES INDOOR/OUTDOOR)

>

CONNECTOR (TRANSFORMER) FAN MOTOR CAPACITOR

>

FAN CONTROLLER

>

FUSE(6A CRANKCASE HEATER

>

LED(CHECK,SERVICE) COMPRESSOR FAN MOTOR

TO INDOOR UNIT CONNECTING WIRES DC 12V

)

1 2 3

TB3

RED

NAME

YLW ORN BRN

RED

BRN BRN

AC

12.3V

AC12.3V

TB1

L1 L2 L3

N

T

O.B

SW1 SW2 SW3

4

YLW

GRN/YLW

12

3 2 1

ORN RED

LED

OFF ON

CN3

CN4T

LD1

240V 230V

220V

LD2

123

LD3

LD6

LD5

LD4

CN2

4

RED

WHT WHT

RED WHT BLK

BLU RED WHT BLK

SYMBOL O.B SW1·2·3<O.B T TB1,3 TH X11<O.B X12<O.B X13<O.B X14<O.B X16

TH3

LD8

LD7

TRFSV

RED

21R

L1/1 L2/3 L3/5

52C

OUTDOOR CONTROLLER BOARD

NAME

>

SELECT SWITCH(CHECK,SERVICE) TRANSFORMER TERMINAL BLOCK OUTDOOR COIL TERMISTOR

>

CRANKCASE HEATER RELAY

>

COMPRESSOR RELAY

>

SOLENOID COIL RELAY

>

SOLENOID COIL RELAY HIGH PRESSURE RELAY

1234

CN4

X11X12X13X14

63H2

63H1

ZNR

F

RST

5

BLU

21S4

BLU

S4

52C

CH

GRY

WHT

A1

21

52C

X16

51C

A2

GRY

7

8

T1/2 T2/4 T3/6

HC

GRY

6

2

X16

63H2

GRY

RED

U

WHT

V

BLU

MC

W

SYMBOL ZNR<O.B> 21R 21S4 26C 51C 52C 63H1 63H2

26C

51C

ORN

BRN

SURGE ABSORBER

NAME

BYPASS VALVE SOLENOID COIL 4-WAY VALVE SOLENOID COIL THERMAL SWITCH THERMAL RELAY COMPRESSOR CONTACTOR CONTROL HIGH PRESSURE SWITCH PROTECT HIGH PRESSURE SWITCH

F.C

MF2

MF1

YLW

VLT

YLW

VLT

96

1

X16

26C51C63H1

5

95

WHT

3

BLU

4

RED

MF1

2

ORN

WHT

BLU BRN YLW

ORN

1

WHT

3

BLU

4

RED

MF2

2

ORN

1

C1

C2

Main functions of LED

LED No.

LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8

Output display (light Compressor indoor command Heating indoor command 63H1 ON Compressor ON Outdoor fan ON 4-way valve ON Bypass valve ON Crankcase heater ON

(

when both Nos.1 and 2 of are “OFF”

SW3

)

Anti-phase detect Missing-phase detect Pipe sensor short/open

51C functions 26C functions

TH overheat protection Defective input

NOTE : If the operation stops to function of the protection device, the check display flashes.

CAUTIONS FOR SERVICING

●

Connect the lead wires according to the colo indication of sticker on the compressor terminal.

CAUTIONS FOR POWER SUPPLY WIRING

●

Making wiring connection in anti-phase or missing phase “A2” or “A3” causes the protection device incorporated in the microcomputer to function resulting in LD1 or LD2 shown in the table above to flash and prevents the compressor operation. If phase “A1” or “N” is missing it causes all displays to go out. Under normal condition LD8 light when power is turned “ON”. If anti-phase connection is to be used, change connections of 2 out of 3 power lines (field wiring side) contained in the power supply terminal block (TB1) of the outdoor unit as shown at the right upper.

w

Since the transformer (T) is connected with 240V power, if 220V or 230V power is used, change the wiring connection

in the following procedure.

)

Check display (flash

—

How to use SW1 and 2

●

)

Pressing erases the past check contents loaded on the microcomputer.

●

The output display (light) remains during operation but pressing displays the past check contents in flashing mode. Pressing the switch again returns to output display (light).

SW1

SW2

Unit side wiring

Field wiring

Change thie side

Power line reconnoction procedure In case of reverse rotation

L1L2L3

Change 2 out of 1. 2 and 3. (This example shows reconnection of 1

123

and 2.)

wWhen power supply is 220V YELLOW ORANGE

RED

240V 230V 220V

CAUTION FOR INDOOR AND OUTDOOR CONNECTING WIRES

●

Since the indoor and outdoor connecting wires has polarity, make sure to connect the same terminal numbers (1,2,3) for indoor and outdoor units.

Outdoor unit terminal

WHITE

13

PUH-4TKSA1·UK

L3

L2

ORN

RED

GRN/YLW

220V

240V

L1/1 L2/3 L3/5

T1/2 T2/4 T3/6

52C

RED AC12.3V

51C

RED WHT

BLU

BLK

F.C.

MF1

95

96

26C51C

26C

5

BRN

BLU

YLW

WHT

C2

4

3 2

1

WHT BLU

MF2

ORN

BLU RED

WHTWHT

BLU

C1

4

3 2

1

230V

ORN

BLU

WHT

X11X12X13

1234

CN2

63H1

BRN3

1

X13X14

X14

SV

RED

21R

21S4

21 S4

BLU

MF1

ORN

RED

W

V

MC

U

63H1

BRN

T

LED

ORN

YLW

1 2

TB3

L1

BRN AC12.3V

RED

YLW

WHT

RED

WHT

RED

4

1234

CN4T

CN3

2

3

12

SW3

SW2

O.B

SW1

TO INDOOR UNIT CONNECTING WIRES DC 12V (polar)

TB1

POWER SUPPLY 3~(3PHASE) 220V 60Hz

ON

OFF

LD7

LD1

LD2

LD3

LD4

LD5

LD6

LD8

F

RT

X11X12

CN4

TRF 52C

WHT

GRY

A1

A2

52C

HC

CH ZNR R S T

ORN

YLW

51C

MF2

SYMBOL

CN3<O.B CN4T<O.B

C1,2 FC<O.B F<O.B HC LD1-LD8 MC

>

CONNECTOR (CONNECTING WIRES INDOOR/OUTDOOR)

>

CONNECTOR (TRANSFORMER) FAN MOTOR CAPACITOR

>

FAN CONTROLLER

>

FUSE(6A CRANKCASE HEATER LED(CHECK,SERVICE) COMPRESSOR

NAME

)

SYMBOL MF1,2 O.B SW1·2·3<O.B T TB1,3 RT X11<O.B X12<O.B X13<O.B

FAN MOTOR

NAME

OUTDOOR CONTROLLER BOARD

>

SELECT SWITCH(CHECK,SERVICE) TRANSFORMER TERMINAL BLOCK OUTDOOR COIL TERMISTOR

>

CRANKCASE HEATER RELAY

>

COMPRESSOR RELAY

>

SOLENOID COIL RELAY

SYMBOL X14<O.B ZNR<O.B> 21R 21S4 26C 51C 52C 63H1

>

SOLENOID COIL RELAY SURGE ABSORBER BYPASS VALVE SOLENOID COIL 4-WAY VALVE SOLENOID COIL THERMAL SWITCH THERMAL RELAY COMPRESSOR CONTACTOR HIGH PRESSURE SWITCH

NAME

Main functions of LED

LED No.

LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8

(

Compressor indoor command Heating indoor command 63H1 ON Compressor ON

when both Nos.1 and 2 of are “OFF”

Output display (light

Outdoor fan ON 4-way valve ON Bypass valve ON

Crankcase heater ON

NOTES : 1. If the operation of the protection device stops to function. then check the display flashes.

2. Symblos used in wiring diagram above are. /:Terminal block :Connector :PC board insertion tab.

CAUTIONS FOR SERVICING

●

Connect the lead wires according to the colo indication of sticker on the compressor terminal.

CAUTIONS FOR POWER SUPPLY WIRING

●

Making wiring connection in anti-phase or missing phase “A2” or “A3” causes the protection device incorporated in the microcomputer to function resulting in LD1 or LD2 shown in the table above to flash and prevents the compressor operation. If phase “A1” or “N” is missing it causes all displays to go out. Under normal condition LD8 light when power is turned “ON”. If anti-phase connection is to be used, change connections of 2 out of 3 power lines (field wiring side) contained in the power supply terminal block (TB1) of the outdoor unit as shown at the right upper.

CAUTION FOR INDOOR AND OUTDOOR CONNECTING WIRES

●

Since the indoor and outdoor connecting wires has polarity, make sure to connect the same terminal numbers (1,2,3) for indoor and outdoor units.

14

SW3

)

Anti-phase detect Missing-phase detect Pipe sensor short/open

51C functions 26C functions

RT overheat protection Defective input

)

Check display (flash

—

How to use SW1 and 2

●

)

Pressing erases the past check contents loaded on the microcomputer.

●

The output display (light) remains during operation but pressing displays the past check contents in flashing mode. Pressing the switch again returns to output display (light).

SW1

SW2

Unit side wiring

Field wiring

Change thie side

Power line reconnoction procedure In case of reverse rotation

L1L2L3

123

Outdoor unit terminal

Change 2 out of 1. 2 and 3. (This example shows reconnection of 1 and 2.)