Mitsubishi PUH-1VKA.UK, PUH-1.6VKA(1).UK, PUH-2VKA(1).UK, PUH-2.5VKA(1).UK, PUH-3VKA(1).UK Service Manual
...
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
OUTDOOR UNIT
PUH-3KA type
TECHNICAL & SERVICE MANUAL
Outdoor unit
[Model names] [Service Ref.]
PUH-1VKA PUH-1VKA.UK
1996
No.OC086
REVISED EDITION-B
PUH-1.6VKA PUH-1.6VKA.UK,PUH-1.6VKA
PUH-2VKA PUH-2VKA.UK,PUH-2VKA
1
PUH-2.5VKA PUH-2.5VKA.UK,PUH-2.5VKA
PUH-3VKA PUH-3VKA.UK,PUH-3VKA
PUH-3YKA PUH-3YKA.UK,PUH-3YKA
PUH-4YKSA PUH-4YKSA.UK,4YKSA
1
1
1
.UK
PUH-5YKSA PUH-5YKSA.UK,PUH-5YKSA
PUH-6YKSA PUH-6YKSA.UK,PUH-6YKSA
CONTENTS
1. TECHNICAL CHANGES··································2
2.
COMBINATION OF INDOOR AND OUTDOOR UNITS
3. PART NAMES AND FUNCTIONS ···················3
4. DATA ································································4
5. OUTLINES AND DIMENSIONS·······················5
6. WIRING DIAGRAM ··········································9
7.
REFRIGERANT SYSTEM DIAGRAM
8. DISASSEMBLY PROCEDURE······················23
9. PARTS LIST···················································25
10. OPTIONAL PARTS························Back cover
1
.UK
1
.UK
.UK
1
.UK
1
.UK
···············21
.UK
.UK
····2
Revision
• Parts List has been partially modified.
• Please destroy OC086 SECOND EDITION.
The Slim Line.
From Mitsubishi Electric.
1 TECHNICAL CHANGES
PUH-1VKA.UK
1
1
.UK
1
.UK
1
.UK
1
1
1
.UK
1
.UK
.UK
.UK
.UK
PUH-1.6VKA.UK PUH-1.6VKA
PUH-2VKA.UK PUH-2VKA
PUH-2.5VKA.UK PUH-2.5VKA
PUH-3VKA.UK PUH-3VKA
PUH-3YKA.UK PUH-3YKA
PUH-4YKSA.UK PUH-4YKSA
PUH-5YKSA.UK PUH-5YKSA
PUH-6YKSA.UK PUH-6YKSA
1. The contactor have changed. (PUH-1.6/2/2.5/3VKA1,5/6YKSA1.UK)
2. Following Parts have changed in order to comply with LVD standard. (All models with
small one)
1Terminal block
2Controller board (Including the fuse)
❈ Please reter to the parts list for the new parts number
3.Color of lead wire for N phase has changed from BLK➔ BLU.
Color of lead wire for L3 phase has changed from BLU➔ BLK.
4. 4-way valve have changed. (PUH-1.6/2/2.5/3VKA1,6YKSA1.UK)
2 COMBINATION OF INDOOR AND OUTDOOR UNITS
Indoor unit Outdoor unit
Models
PLH-GKH(S)B.UK
PLH-GK(S)B.UK
PLH-GKH(S)B
PLH-GK(S)B
PLH-KKHB
PLH-KKB
PCH-GKH(S
PCH-GK(S
PEH-EKH(S
PEH-EK(S
PKH-FKH(S
PKH-FK(S
PKH-EK
PSH-GJH
PSH-GJH(S
PEHD-EKH(S
PEHD-EK(S
)A
)A
)A
)A
)A
)A
A
)
)A.UK
)A.UK
Service
Manual No.
OC091
OC096
OC099
OC098
OC094
OC068
OC069
OC070
OC075
–
1
VKA
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
VKA,VKA
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
2
1
VKA
VKA,VKA
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1
VKA,VKA
—
—
—
341.6 2.5
1
YKA,YKA
—
—
—
1
YKSA,YKSA
—
—
—
5
1
YKSA,YKSA
—
—
—
—
—
—
—
—
6
1
YKSA,YKSA
—
—
—
—
—
—
—
—
—
—
1
2
3 PART NAMES AND FUNCTIONS
PUH-1VKA.UK
1.6VKA.UK,1.6VKA
1.UK
2VKA.UK,2VKA
1·UK
Air intake
Air outlet
(Expels warm air during cooling)
PUH-4YKSA·UK
4YKSA
1·UK
Air intake
Air outlet
PUH-5YKSA·UK
5YKSA
1·UK
6YKSA·UK
6YKSA
1·UK
Air intake
Air outlet
PUH-2.5VKA.UK,2.5VKA1.UK
3VKA.UK,3VKA
1.UK
3YKA.UK,3YKA
1.UK
Air intake
Air outlet
• Outdoor unit
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
4 DATA
1. REFILLING REFRIGERANT CHARGE (R-22 : kg)
Models
PUH-1VKA1·UK
PUH-1.6VKA·UK
PUH-1.6VKA
1·UK
PUH-2VKA·UK
PUH-2VKA
1·UK
PUH-2.5VKA·UK
PUH-2.5VKA
1·UK
PUH-3VKA·UK
PUH-3VKA
1·UK
PUH-3YKA·UK
PUH-3YKA
1
·UK
PUH-4YKSA·UK
PUH-4YKSA
1
·UK
PUH-5YKSA·UK
PUH-5YKSA
1
·UK
PUH-6YKSA·UK
PUH-6YKSA
1
·UK
5m
1.7
1.5
1.5
2.1
2.5
2.5
3.5
4.7
4.3
10m
1.7
1.7
1.7
2.3
2.7
2.7
3.6
4.8
4.4
15m
1.8
1.8
1.8
2.4
2.8
2.8
3.8
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-1VKA1·UK
RH173VFC
)
)
2.85
5.55
—
PUH-1.6VKA ·UK
PUH-1.6VKA
1
RH247VFC
2.00
4.55
—
Refrigerant piping length (one way)
20m
1.8
1.9
1.9
2.5
2.9
2.9
3.9
5.1
4.7
PUH-2VKA·UK
PUH-2VKA
·UK
NH38VMD
1.05
2.23
—
25m
1.9
2.1
2.1
2.7
3.1
3.1
4.1
5.3
4.9
PUH-2.5VKA·UK
1
PUH-2.5VKA
·UK
NH41VMD
1.03
2.22
—
30m
1.9
2.2
2.2
2.8
3.2
3.2
4.2
5.4
5.0
1
·UK
PUH-3VKA
35m
—
2.3
2.3
2.9
3.3
3.3
4.4
5.6
5.2
PUH-3VKA·UK
1
·UK
NH52VND
0.83
2.03
—
40m
—
2.4
2.4
3.0
3.4
3.4
4.5
5.7
5.3
45m
—
—
—
3.1
3.6
3.6
4.6
5.9
5.5
PUH-3YKA·UK
PUH-3YKA
1
·UK
NH52YDA
3.60
3.60
3.60
50m
—
—
—
3.3
3.7
3.7
4.8
6.0
5.6
PUH-4YKSA·UK
PUH-4YKSA
1
·UK
NH56YDA
3.50
3.50
3.50
Outdoor unit
Compressor Model
Winding
Resistance
(Ω)
at 25˚C
1-T3
T
T2-T
T3-T
PUH-5YKSA/5YKSA
ZR61K3-TFD
2.53-2.91
3
1
2.53-2.91
2.53-2.91
1
·UK
PUH-6YKSA/6YKSA1·UK
ZR68KC-TFD
2.31
2.31
2.31
4
5 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
10
10
Note:Allow adequate
upper clearance
100
500
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 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
Drain hole
2-12o23 Oval holes
(standard bolt M10)
Handle for moving
PUH-1VKA·UK,PUH-1.6VKA·UK,PUH-2VKA·UK Unit : mm (inch)
PUH-1.6VKA1·UK,PUH-2VKA1·UK
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
10
10
Note:Allow adequate
upper clearance
100
500
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 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
Drain hole
2-12o23 Oval holes
(standard bolt M10)
Handle for moving
PUH-2.5VKA·UK,PUH-3VKA·UK,PUH-3YKA·UK Unit : mm (inch)
PUH-2.5VKA1·UK,PUH-3VKA1·UK,PUH-3YKA1·UK
6
PUH-4YKSA·UK Unit : mm (inch)
PUH-4YKSA1·UK
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
7 24(1)295(11-5/8)
installation hole
Side air intake
52461
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-5YKSA·UK,PUH-6YKSA·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 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
10
10
Note:Allow adequate
upper clearance
150
500
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
Drain hole
2-12o23 Oval holes
(standard bolt M10)
Front opening
PUH-5YKSA1·UK,PUH-6YKSA1·UK
8
6 WIRING DIAGRAM
RED
N
E
BLU
1
230V
ORN
RED
4
3
WHT
RED
ORN
BLU
WHT
WHT
WHT
2
X11X12X13
1234
CN2
63H1
BRN
3
1
X13X14
X14
SV
RED
RED
21R
21S4
21
S4
RED
RED
MF
ORN
C1
RED
52C
R
T
W
U
BLU
WHT
BLU
C2
S
C
MC
R
63H1
BRN
BRN
GRN/YLW
T
ORN
YLW
1
2
TB3
A
RED AC12.3V
BRN AC12.3V
RED
YLW
BLK
BLK
RED
240V
220V
4
1234
CN4T
CN3
2
3
12
SW3
SW2
O.B
LED
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
WHT
GRY
GRY
A
B
52C
HC
CH
ZNR
R/1 S/2 T/3
BLU BLU
YLW
YLW
YLW
YLW
BLU
FC
26C
63H2
51CM
MF2
MF1
PUH-1VKA·UK,PUH-1.6VKA·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
R.V COIL
BYPASS VALVE 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 (INNER THERMOSTAT)
OUTDOOR CONTROLLER BOARD
>
SELECT SWITCH(CHECK,SERVICE)
TRANSFORMER
TERMINAL BLOCK
OUTDOOR COIL THERMISTOR
(
0˚C/15kΩ,25˚C/5.4kΩ
)
CRANKCASE HEA TER RELA Y
SYMBOL
X12<O.B
X13<O.B
X14<O.B
ZNR<O.B>
52C
63H1
>
COMPRESSOR RELAY
>
R.V RELAY
>
B.V RELAY
VARISTOR
COMPRESSOR CONTACTOR
HIGH PRESSURE CONTROL 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
2. Symblos used in wiring diagram above are.
(
when both Nos.1 and 2 of are ”OFF”
Output display (light
)
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).
SW1
SW2
—
26C functions
RT overheat protecyion
Defective input
/:Terminal block :Connector :PC board insertion tab.
wWhen power supply is 220V
YELLOW
ORANGE
RED
240V
230V
220V
WHITE
9
PUH-1.6VKA1·UK
RED
N
BLU
1
230V
ORN
RED
4
3
WHT
RED
ORN
BLU
WHT
WHT
WHT
2
X11X12X13
1234
CN2
63H1
BRN
3
1
X13X14
X14
SV
RED
RED
21R
21S4
21
S4
BLU
BLU
MF
ORN
C1
RED
52C
L1/1
L3/5
T3/6
T1/2
BLU
WHT
BLU
C2
S
C
MC
R
63H1
BRN
BRN
GRN/YLW
T
ORN
YLW
1
2
TB3
L
RED AC12.3V
BRN AC12.3V
RED
YLW
BLU
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
WHT
GRY
GRY
A1
A2
52C
HC
CH
ZNR
R/1 S/2 T/3
BLU BLU
YLW
YLW
YLW
YLW
BLU
FC
26C
63H2
51CM
MF2
MF1
LED
SYMBOL
HC
C1
C2
FC<O.B
F<O.B
21S4
21R
LD1~LD8
CRANKCASE HEATER
FAN MOTOR CAPACITOR
COMPRESSOR CAPACITOR
>
FAN CONTROLLER
>
FUSE(6.3A
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 (INNEER THERMOSTAT)
OUTDOOR CONTROLLER BOARD
>
SELECT SWITCH(CHECK,SERVICE)
TRANSFORMER
TERMINAL BLOCK
OUTDOOR COIL THERMISTOR
(
0˚C/15kΩ,25˚C/5.4kΩ
)
CRANKCASE HEA TER RELA Y
SYMBOL
X12<O.B
X13<O.B
X14<O.B
ZNR<O.B>
52C
63H1
>
COMPRESSOR RELAY
>
21S4 RELAY
>
21R RELAY
VARISTOR
COMPRESSOR CONTACTOR
HIGH PRESSURE CONTROL SWITCH
NAME
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
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.
10
(
when both Nos.1 and 2 of are ”OFF”
SW3
)
Check display (flash
Pipe temp. sensor short/open
26C functions
RT overheat protecyion
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
240V
ORANGE
RED
230V
220V
WHITE
PUH-2VKA·UK,PUH-2.5VKA·UK,PUH-3VKA·UK
B
52C
A
GRY
GRY
N
E
A
RED
BLK
RED
BLK
GRN/YLW
52C
RED
C2
BLU
BLUBLU
5
MF2
RED
LED
O.B
LD8
LD7
LD6
LD5
LD4
LD3
LD2
63H1
YLW
YLW
YLW
YLW
BRN
BRN
HC
WHT
WHT
BLK
BLK
RED
RED
S
C
R
BLU
WHT
BLU
W
U
T
R
WHT
WHT
220V
230V
240V
RED
ORN
YLW
T
AC12.3V
AC
12.3V
BRN
BRN
RED
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
TB1
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
)
)
)
ZNR<O.B>
21S4
51C
52C
63H1
26C
COMPRESSOR RELAY
NAME
SOLENOID COIL RELAY
B.V COIL RELAY
SURGE ABSORBER
BYPASS VALVE SOLENOID COIL
THERMAL RELAY
CONPRESSOR CONTACTOR
HIGH PRESSURE CONTROL SWITCH
THERMAL RELAY
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
Main functions of LED
LED No.
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,
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.
(
when both Nos.1 and 2 of are ”OFF”
Output display (light
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
11
PUH-2VKA1·UK,PUH-2.5VKA1·UK,PUH-3VKA1·UK
A2
52C
A1
GRY
GRY
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
YLW
YLW
YLW
BRN
BRN
HC
WHT
WHT
BLU
BLU
RED
RED
S
C
R
BLU
WHT
BLU
T2/6
T1/2
L3/5
L1/1
WHT
WHT
220V
230V
240V
RED
ORN
YLW
T
AC12.3V
AC
12.3V
BRN
BRN
RED
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(6.3A
)
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
PIPE TEMP. THERMISTOR
CRANKCASE HEATER RELAY
NAME
SYMBOL
X12(O.B
X13(O.B
X14(O.B
)
)
)
ZNR<O.B>
21S4
52C
63H1
COMPRESSOR RELAY
NAME
SOLENOID COIL RELAY
SOLENOID COIL RELAY
SURGE ABSORBER
4-WAY VALVE SOLENOID COIL
CONPRESSOR CONTACTOR
HIGH PRESSURE CONTROL SWITCH
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
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,
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
Pipe sensor short/open
TH overheat protecyion
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-3YKA·UK
SYMBOL
CN3<O.B
CN4T<O.B
C
FC<O.B
F<O.B
HC
LD1-LD8<O.B
MC
MF
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
A1
A2
A3
N
E
T
O.B
SW1
SW2
SW3
4
GRN/YLW
12
YLW
ORN
RED
LED
OFF
ON
3
2
CN3
1
CN4T
LD1
LD2
123
240V
230V
220V
LD3
SYMBOL
O.B
SW1·2·3<O.B
T
TB1,3
TH
X11<O.B
X12<O.B
X13<O.B
X14<O.B
ZNR<O.B>
TH
LD8
LD7
LD6
LD5
LD4
CN2
4
RED
RED
21R
WHT
WHT
RED
WHT
BLU
BLK
RED
WHT
BLU
OUTDOOR CONTROLLER BOARD
NAME
>
SELECT SWITCH(CHECK,SERVICE)
TRANSFORMER
TERMINAL BLOCK
SYMBOL
21R
21S4
52C
63H1
BYPASS VALVE SOLENOID COIL
NAME
R.V COIL
COMPRESSOR CONTACTOR
HIGH PRESSURE CONTROL SWITCH
OUTDOOR COIL TERMISTOR
>
CRANKCASE HEATER RELAY
>
COMPRESSOR RELAY
>
R.V COIL RELAY
>
B.V COIL RELAY
SURGE ABSORBER
1234
CN4
X11X12X13X14
63H1
ST
26C
51C
5
BRN
BRN
X11X12X13X14
ZNR
F
HC
R
U
V
MC
W
CH52C21S4TRFSV
GRY
GRY
WHT
51C
52C
WHT
A
B
RED
U
WHT
V
BLU
W
BLK
BLK
21
S4
52C
R
U
S
V
T
W
R
S
T
ORN
ORN
F.C
MF2
MF1
YLW
YLW
96
51C63H1
26C
95
WHT
WHT
3
BLU
BLU
4
RED
RED
2
C
ORN
MF
ORN
1
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 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
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 lit during operation but
pressing displays the past check contents in flashing
mode. Pressing the switch again returns to output display
(light).
SW1
SW2
Power line reconnoction procedure
In case of reverse rotation
Unit side
wiring
A1A2A3
Field wiring
Change thie side
123
wWhen power supply is 220V
YELLOW
ORANGE
RED
Change 2 out of 1.
2 and 3.
(This example shows
reconnection of 1
and 2.)
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
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