Mitsubishi Electric Mr. SLIM PU-1.6VLJA Operating manual

TECHNICAL & SERVICE MANUAL
SPLIT-TYPE AIR CONDITIONERS
CONTENTS
1. COMBINATION OF INDOOR AND OUTDOOR UNITS ·····2
2. PART NAMES AND FUNCTIONS·····················2
3. DATA ··································································3
4. OUTLINES AND DIMENSIONS ························5
5. WIRING DIAGRAM ············································9
6. REFRIGERANT SYSTEM DIAGRAM ·············13
7. DISASSEMBLY PROCEDURE························14
8. PARTS LIST ····················································16
9. OPTIONAL PARTS···························Back cover
Outdoor unit
[Model names]
PU-1.6VLJA
PU-2VJA,PU-2NJA
PU-2.5VJA,PU-2.5NJA
PU-3VJA,PU-3YJA
PU-3NJA
PU-4VLJSA,PU-4YJSA
PU-4TJSA
PU-5YJSA,PU-5TJSA
PU-6YJSA,PU-6TJSA
[Service Ref.]
1997
PU-1.6VLJA2.UK
PU-2VJA2.UK,PU-2NJA1.UK
PU-2.5VJA2.UK,PU-2.5NJA1.UK
PU-3VJA2 .UK ,PU-3YJA2 .UK
PU-3NJA1 .UK
PU-4VLJSA2.UK,PU-4YJSA2.UK
PU-4TJSA1.UK
1998
PU-5YJSA.UK,PU-5TJSA.UK
PU-6YJSA.UK,PU-6TJSA.UK
No.OC149
REVISED EDITION-B
OUTDOOR UNIT
The Slim Line.
From Mitsubishi Electric.
Revision:
●Parts List has been partially modified.
(Marking Win the PARTS LIST has been changed
the PARTS LIST in OC149 REVISED EDITION-A.)
●Please discard OC149 REVISED EDITION-A.

2
2PART NAMES AND FUNCTIONS
1COMBINATION OF INDOOR AND OUTDOOR UNITS
wUnit of pressure is based on ISO (International Standardization Organization)
[kgf/cm2]➝[Mpa] (1MPa=10.2kgf/cm2)
●Outdoor Unit
Air intake
Air outlet
(Expels warm air during cooling)
Air intake
Air outlet
Air intake
Air outlet
Service
Manual No.
Service
Ref.
OC151
(REVISED EDITION-A)
OC146
OC131
OC143
OC129
PL-GJ(S)B1.UK
PL-KJB.UK
PC-GJ(S)A1
PE-EJH(S)A1
PS-GJ(S)1
PK-1.6/2FLA3
PK-2.5/3/4FL(S)A2
Indoor unit Outdoor unit
PU-1.6
.UK
PU-2.UK PU-2.5.UK PU-3.UK PU-4.UK PU-5.UK PU-6.UK
VLJSA2
VLJA2 VJA2NJA1VJA2NJA1VJA2YJA3 YJSA3TJSA1 YJSA TJSA YJSA TJSA
NJA1
_____
______
_
_
_
_
_
_
_
_
_
_
__
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
OC141
(REVISED EDITION-A)
OC155
(REVISED EDITION-A)
PS-GJ(S)A1
PE-EJ(S)A.TH
_
_____
____
OC134
(REVISED EDITION-A)
Air intake
Air outlet
PU-5YJSA.UK
PU-5TJSA.UK
PU-6YJSA.UK
PU-6TJSA.UK
PU-1.6VLJA2.UK
PU-2VJA2.UK
PU-2NJA1.UK
PU-4VLJSA2.UK
PU-4YJSA2.UK
PU-4TJSA1.UK
PU-2.5VJA2.UK
PU-2.5NJA1.UK
PU-3VJA2.UK
PU-3YJA2.UK
PU-3NJA1.UK

3
3DATA
1. ELECTRICAL SPECIFICATIONS
(1) Rating conditions
●JIS B 8616 Indoor : 27˚C(80˚F)D.B.,19˚C(66˚F)W.B.
Outdoor : 35˚C(95˚F)D.B.,24˚C(75˚F)W.B.
●SSA 385,386 Indoor : 29˚C(84˚F)D.B. ,19˚C(66˚F)W.B.
Outdoor : 46˚C(115˚F)D.B.,24˚C(75˚F)W.B.
2. POWER SUPPLY & MODEL NAMES
Notes : 1.Power supply key N …… 1ph,220V,60Hz Y…3ph,380/220,400/230,
V(L)…1ph,220,230,240V,50Hz 415/240V,50Hz,4 wires
T …… 3ph,220V,60Hz
Power supply (1 phase)
Service Ref.
Current
Input
Starting current
A
A
kW
Power supply (1 phase)
Service Ref.
Current
Input
Starting current
A
A
kW
Power supply (3 phase)
Service Ref.
Current
Input
Starting current
A
A
kW
Power supply (3 phase)
Service Ref.
Current
Input
Starting current
A
A
kW
V : 220V 50Hz V : 230V 50Hz
PU-1.6VLJA2.UK PU-2VJA2.UK PU-2.5VJA2.UK PU-1.6VLJA2.UK PU-2VJA2.UK
PU-1.6VLJA2.UK
PU-3VJA2.UK PU-4VLJSA2.UK PU-3VJA2.UK
PU-4VLJSA 2 .UK PU-3VJA2.UK PU-4VLJSA 2 .UK PU-3NJA1.UK
PU-2VJA2.UK PU-2.5VJA2.UK PU-2NJA1.UK
PU-3YJA2.UK
PU-4YJSA 2 .UK PU-5YJSA.UK
PU-3YJA2.UK PU-4YJSA2.UK PU-4TJSA1.UK
PU-6YJSA.UK
PU-2.5NJA1.UK
PU-2.5VJA2.UK
11.3
2.44
48
6.7
1.42
30
11.4
2.46
45
11.0
2.46
50
6.7
1.47
32
11.0
2.49
47
Power supply (1 phase)
Service Ref.
Current
Input
Starting current
A
A
kW
V : 240V 50Hz N : 220V 60Hz
10.8
2.48
52
6.9
1.52
33
10.7
2.52
49
11.4
2.45
54
13.4
2.91
58
V : 220V 50Hz V : 230V 50Hz V : 240V 50Hz N : 220V 60Hz
15.1
3.18
68
16.9
3.35
79
14.4
3.19
68
16.6
3.44
79
13.9
3.20
68
16.3
3.52
79
17.6
3.44
80
Y : 380/220V 50Hz
5.7
3.18
36
5.7
3.29
38
8.15
4.56
65.5
8.63
5.11
74
PU-3YJA2.UK
PU-4YJSA 2 .UK
5.4
3.19
36
5.5
3.33
38
Y : 400/230V 50Hz
PU-5YJSA.UK PU-6YJSA.UK
7.89
4.61
65.5
8.55
5.15
74
Y : 415/240V 50Hz T : 220V 60Hz
5.3
3.20
36
5.5
3.36
38
PU-5YJSA.UK
7.63
4.66
65.5
PU-6YJSA.UK
8.48
5.18
74
12.2
4.27
69
PU-5TJSA.UK
16.83
5.63
135
PU-6TJSA.UK
18.70
6.15
140
Power supply
Service Ref.
Current
Input
Starting current
A
A
kW
PU-2NJA1.UK
13.6
2.97
54
PU-2.5NJA1.UK
15.8
3.44
58
N : 220V (1 phase) 60Hz
Power supply
Service Ref.
Current
Input
Starting current
A
A
kW
PU-3NJA1.UK
20.9
4.09
80
PU-4TJSA1.UK
14.0
4.97
69
N : 220V (1 phase) 60Hz
PU-5TJSA.UK
19.61
6.68
135
T : 220V (3 phase) 60Hz
PU-6TJSA.UK
21.45
7.28
140
Power supply
50Hz
60Hz
1ph.
3ph.
1ph.
3ph.
Service Ref. (indoor unit)
220, 230, 240V
380/220, 400/230, 415/240V
220V
220V
Model name (outdoor unit)/Service Ref.
PU-1.6 PU-2 PU-2.5 PU-3 PU-4
PU-1.6VLJA2.UK PU-2VJA 2 .UK PU-2.5VJA 2 .UK
—
— ———
—
—
—
—
——
PU-2NJA 1 .UK PU-2.5NJA 1 .UK
PU-3VJA
2 .UK PU-4VLJSA2.UK
PU-3YJA 2 .UK
PU-3NJA
1 .UK
PU-4YJSA
2 .UK
PU-4TJSA
1 .UK
PU-5
——
PU-5YJSA.UK
PU-5TJSA.UK
PU-6
PU-6YJSA.UK
PU-6TJSA.UK

4
2. COMPRESSOR TECHNICAL DATA
Compressor
RH247VFC
NHJ33NBD
NHJ41VMD
NHJ38NBD
NHJ41VMD
NHJ52VND
NHJ52YDE
NHJ47NAD
NH56VND
NHJ56YDE
NHJ56TKA
Winding resistance("). at 20:
R-C/U-V S-C/V-W W-U
2.00 4.55 –
0.70 1.44 –
0.92 2.44 –
0.70 1.42 –
0.92 2.44 –
0.83 2.03 –
3.68 3.68 –
0.58 1.14 3.68
0.64 1.55 –
3.30 3.30 3.30
0.83 0.83 0.83
Outdoor unit
Service Ref.
PU-1.6VLJA2.UK
PU-2NJA1.UK
PU-2VJA2.UK
PU-2.5NJA1.UK
PU-2.5VJA2.UK
PU-3VJA2.UK
PU-3YJA2.UK
PU-3NJA1.UK
PU-4VLJSA2.UK
PU-4YJSA2.UK
PU-4TJSA1.UK
Compressor
Winding resistance("). at 25:
T1–T2T2–T3T3–T1
Outdoor unit
Service Ref.
ZR61KC-TFD 2.53–2.91 2.53–2.91 2.53–2.91 PU-5YJSA.UK
ZR61KC-TF5 0.628–0.722 0.628–0.722 0.628–0.722 PU-5TJSA.UK
ZR72KC-TFD 2.148–2.472 2.148–2.472 2.148–2.472 PU-6YJSA.UK
ZR68KC-TF5 0.517 0.517 0.517 PU-6TJSA.UK
3. ADDITIONAL REFRIGERANT CHARGE (R-22……kg (lbs))
Service Ref.
Outdoor unit
precharged (kg)
(up to 20m)
Refrigerant piping length (one way)
PU-1.6VLJA2.UK
PU-2VJA2.UK
PU-2NJA1.UK
PU-2.5VJA2.UK
PU-2.5NJA1.UK
PU-3VJA2.UK
PU-3YJA2.UK
PU-3NJA1.UK
PU-4VLJSA2.UK
PU-4YJSA2.UK
PU-4TJSA1.UK
1.3
1.78
1.9
2.4
2.4
3.08
2.88
3.5
3.8
4.6
4.6
20m (66ft) 25m (82ft) 30m (98ft) 35m (115ft) 40m (131ft)
0
0
0
0
0
0
0
0
0
0
0
–
0.06 (0.13)
0.06 (0.13)
0.06 (0.13)
0.06 (0.13)
0.06 (0.13)
0.06 (0.13)
0.06 (0.13)
0.15 (0.33)
0.15 (0.33)
0.15 (0.33)
–––
––
––
––
––
––
––
––
0.45 (0.99) 0.6 (1.32)
0.45 (0.99) 0.6 (1.32)
0.45 (0.99) 0.6 (1.32)
45m (148ft)
–
–
–
–
–
–
–
–
–
–
–
50m (164ft)
–
–
–
–
–
–
–
–
–
–
–
0.12 (0.26)
0.12 (0.26)
0.12 (0.26)
0.12 (0.26)
0.12 (0.26)
0.12 (0.26)
0.12 (0.26)
0.30 (0.66)
0.30 (0.66)
0.30 (0.66)
PU-5YJSA.UK
5.1 0 0.15 (0.33) 0.45 (0.99) 0.6 (1.32) 0.75 (1.65) 0.9 (1.98)0.30 (0.66)
PU-5TJSA.UK
5.1 0 0.15 (0.33) 0.45 (0.99) 0.6 (1.32) 0.75 (1.65) 0.9 (1.98)0.30 (0.66)
PU-6YJSA.UK
5.7 0 0.15 (0.33) 0.45 (0.99) 0.6 (1.32) 0.75 (1.65) 0.9 (1.98)0.30 (0.66)
PU-6TJSA.UK
5.7 0 0.15 (0.33) 0.45 (0.99) 0.6 (1.32) 0.75 (1.65) 0.9 (1.98)0.30 (0.66)

5
4OUTLINES AND DIMENSIONS
PU-1.6VLJA2.UK/PU-2VJA2.UK/PU-2NJA1.UK Unit : mm (inch)
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
150
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
Handle for moving
77 524
339
282
297
444
650 (25-5/8)
40 60524
Service panel
(Ground terminal)
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 front piping (refrigerant,drainage and wiring)
R20
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

6
PU-2.5VJA2.UK/PU-2.5NJA1.UK
PU-3VJA2.UK/PU-3YJA2.UK/PU-3NJA1.UK
Unit : mm (inch)
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
150
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
Handle for moving
179 524
441
337
352
403
553
850(33-7/16)
40 60524
Service panel
(Ground terminal)
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 front piping (refrigerant,drainage and wiring)
R20
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

7
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)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
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)
40 60524
Service panel
(Ground terminal)
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 front piping (refrigerant, drainage and wiring)
R20
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
PU-4VLJSA2.UK/PU-4YJSA2.UK/PU-4TJSA1.UK Unit : mm (inch)

8
PU-5YJSA.UK/PU-5TJSA.UK/PU-6YJSA.UK/PU-6TJSA.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
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
(Ground terminal)
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)
R20
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

9
5WIRING DIAGRAM
C
CP
C3
F3
MC
MF3
TB1
TB3
49C
49F3
52C
63H
63L
COMPRESSOR RUN CAPACITOR
COMPRESSOR PROTECTOR
FAN MOTOR CAPACITOR
FUSE(5A)
COMPRESSOR
FAN MOTOR
TERMINAL BLOCK (POWER SUPPLY)
TERMINAL BLOCK (CONNECTING WIRES INDOOR/OUTDOOR)
COMPRESSOR INTERNAL THERMOSTAT
FAN MOTOR INTERNAL THERMOSTAT
COMPRESSOR CONTACTOR
HIGH PRESSURE SWITCH
LOW PRESSURE SWITCH
NOTES:1.THE DOTTED LINES SHOW FIELD WIRING.
2. TO INDOOR UNIT TERMINAL BLOCK.
GRN/YLW
52C
L1/1 T1/2
L3/5 T3/6
BLU
WHT
RED
L
TB1
N
RED BLU
BLU
~/N (1PHASE)
220-240V 50Hz
RED
C
C
S
BLU
49C
ORN
(5A)
F3
A1
A2
63H 63L
WHT WHT GRY GRY
YLW
POWER
SUPPLY
C
52
R
MC
MF3
49F3
C3
WHT
ORN
RED
BLU BLU
RED
ORN
WHT
3
1
2
4
CP
X17
X6
X14
52C P2P3P3 52C P1BA
WHT
RED
TB3
X6
2
1
1
2
X17X14
NOTES:1.THE DOTTED LINES SHOW FIELD WIRING.
2. TO INDOOR UNIT TERMINAL BLOCK.
3.THE LETTERS IN THE ( ) INDICATE PU-3VJA
GRN/YLW
EARTH
N
TB1
L
RED
BLU
GRY
A1
A2
GRY
22(32)
21(31)
GRY
1
52C
HC
2
63L
63H
1413 52C
VLT
VLT
GRY GRY GRY GRY
X14 X17
2
1
1
2
X6
TB3 RED
WHT
ABP1 52C P3 P3 P2 52C
X14 X6
X17
CP
4
2
1
3WHT
ORN
RED
BLUBLU
RED
ORN
WHT
C3
49F3 MF3
MC
R
TB1
52
C
POWER
SUPPLY
52C
L1/1 T1/2
YLW
WHT WHT
F3
(5A)
RED
L3/5 T3/6
BLU
ORN
49C
RED
WHT
BLK
S
C
CRED
~/N (1PHASE)
220-240V 50Hz
C
CP
C3
F3
MC
MF3
TB1
TB3
49C
49F3
52C
63H
63L
COMPRESSOR RUN CAPACITOR
COMPRESSOR PROTECTOR
FAN MOTOR CAPACITOR
FUSE(5A)
HC CRANKCASE HEATER
COMPRESSOR
FAN MOTOR
TERMINAL BLOCK (POWER SUPPLY)
TERMINAL BLOCK (CONNECTING WIRES INDOOR/OUTDOOR)
INTERNAL THERMOSTAT FOR MC
INTERNAL THERMOSTAT FOR MF3
COMPRESSOR CONTACTOR
HIGH PRESSURE SWITCH
LOW PRESSURE SWITCH
C
CP
C3
F3
MC
MF3
TB1
TB3
49C
49F3
52C
63H
63L
COMPRESSOR RUN CAPACITOR FOR
COMPRESSOR PROTECTOR
FAN MOTOR CAPACITOR
FUSE(5A)
HC CRANKCASE HEATER
COMPRESSOR
FAN MOTOR
TERMINAL BLOCK (POWER SUPPLY)
TERMINAL BLOCK (CONNECTING WIRES INDOOR/OUTDOOR)
INTERNAL THERMOSTAT FOR MC
INTERNAL THERMOSTAT FOR MF3
COMPRESSOR CONTACTOR
HIGH PRESSURE SWITCH
LOW PRESSURE SWITCH
NOTES:1.THE DOTTED LINES SHOW FIELD WIRING.
2. TO INDOOR UNIT TERMINAL BLOCK.
GRN/YLW
2
14
2
1
3
WHT
RED BLU
GRY
A1
A2
GRY
32
31
GRY
52C
HC
63L
63H
1413 52C
VLT VLT
GRY GRY
X14 X17
2
1
1
2
X6
TB3 RED
WHT
ABP1 52C P3 P3 P2 52C
X14 X6
X17
CP
L
WHT
ORN
RED
BLU
BLU
RED
ORN
WHT
C3
49F3 MF3
MC
R
TB1
52
C
POWER
SUPPLY
52C
L1/1 T1/2
YLW
WHT
F3
(5A)
RED
NL3/5 T3/6
BLU
ORN
49C
RED
WHT
BLK
S
C
CRED
~/N (1PHASE)
220V 60Hz
PU-1.6VLJA2.UK
PU-2VJA2.UK,PU-2.5VJA2.UK,PU-3VJA2.UK
PU-3NJA1.UK

10
C
CP
C3
F3
MC
MF3
TB1
TB3
49C
49F3
52C
63H
63L
RUN CAPACITOR FOR MC
COMPRESSOR PROTECTOR
FAN MOTOR CAPACITOR
FUSE(5A)
COMPRESSOR
FAN MOTOR
TERMINAL BLOCK (POWER SUPPLY)
TERMINAL BLOCK (CONNECTING WIRES INDOOR/OUTDOOR)
INTERNAL THERMOSTAT FOR MC
INTERNAL THERMOSTAT FOR MF3
COMPRESSOR CONTACTOR
HIGH PRESSURE SWITCH
LOW PRESSURE SWITCH
NOTES:1.THE DOTTED LINES SHOW FIELD WIRING.
2. TO INDOOR UNIT TERMINAL BLOCK.
CP
C3
F3
MC
MF3
TB1
TB3
26C
49F3
52C
63H
63L
COMPRESSOR PROTECTOR
FAN MOTOR CAPACITOR
FUSE(5A)
HC CRANKCASE HEATER
COMPRESSOR
FAN MOTOR
TERMINAL BLOCK (POWER SUPPLY)
TERMINAL BLOCK (CONNECTING WIRES INDOOR/OUTDOOR)
THERMAL SWITCH
47 ANTI-PHASE PROTECTOR
INTERNAL THERMOSTAT FOR MF3
51C THERMAL RELAY
COMPRESSOR CONTACTOR
HIGH PRESSURE SWITCH
LOW PRESSURE SWITCH
NOTES:1.THE DOTTED LINES SHOW FIELD WIRING.
2. TO INDOOR UNIT TERMINAL BLOCK.
N
L1
L2
L3
GRN/YLW
GRY
63H
GRY
YLW
A
C47
GRY
BLK
WHT
RED
(5A)
F3
BLU RED
52C
22
21
A1
A2
YLW
9596
1413
HC
26C 51C
63L
52C
ORN
WHT
VLT
WHT
VLT
BLU
YLW
2
1
GRY
47
RTS
RED WHT BLU
L3/5
L2/3
L1/1
52C 51C
3N~ (3PHASE 4WIRES)
380/220-415/240V 50Hz
POWER SUPPLY
C
52
T3/6
T1/2
T2/4
W
V
U
BLK
WHT
RED MC
MF3
49F3
C3
BLU
ORN
RED
WHT BLU
RED
ORN
WHT
3
1
2
4
CP
X17
X6
X14
52C P2P3P3 52C P1BA
WHT
RED
TB3
X6
2
1
1
2
X17X14
PU-2NJA1.UK,PU-2.5NJA1.UK
PU-3YJA2.UK
C
CP
C3,4
F3
MC
MF3.4
TB1
TB3
49C
49F3.4
52C
26C
RUN CAPACITOR FOR MC
COMPRESSOR PROTECTOR
FAN MOTOR CAPACITOR
FUSE(5A)
HC CRANKCASE HEATER
COMPRESSOR
FAN MOTOR
TERMINAL BLOCK (POWER SUPPLY)
TERMINAL BLOCK (CONNECTING WIRES INDOOR/OUTDOOR)
INTERNAL THERMOSTAT FOR MC
INTERNAL THERMOSTAT FOR MF3,4
COMPRESSOR CONTACTOR
THERMAL SWITCH (DIS. CHARGE)
63H
63L
HIGH PRESSURE SWITCH
LOW PRESSURE SWITCH
NOTES:1.THE DOTTED LINES SHOW FIELD WIRING.
2. TO INDOOR UNIT TERMINAL BLOCK.
3.POWER SUPPLY ~ (1PHASE) 220–240V,50Hz
26C
L
N
220-240V 50Hz
~/N (1PHASE)
SUPPLY
POWER
GRN/YLW
RED
C
C
S
BLK
WHT
RED
49C
BLU
WHT
GRY
GRY
GRY
ORN
BLU T3/6
L3/5
1
1
RED
(5A)
F3
BLU RED
52C
32
31
A1
A2 1413
HC
63H 63L
52C
WHT
VLT
WHT GRY
VLT
GRY
YLW
2
2
T1/2
L1/1
52C
C
52
TB1
R
MF4
49F4
WHT
ORN
RED
BLU
WHT
YLW
BRN
BLU
MC
MF3
49F3
C4
C3
WHT
ORN
RED
BLU BLU
RED
ORN
WHT
3
1
2
4
3
1
2
4
CP
X17
X6
X14
52C P2P3P3 52C P1BA
WHT
RED
TB3
X6
2
1
1
2
X17X14
PU-4VLJSA2.UK
GRN/YLW
TB1
RED BLU
A1
A2
63L
63H
1413 52C
VLT VLT
GRY GRY GRY GRY
X14 X17
2
1
1
2
X6
TB3 RED
WHT
ABP1 52C P3 P3 P2 52C
X14 X6
X17
CP
4
2
1
3WHT
ORN
RED
BLUBLU
RED
ORN
WHT
C3
49F3
MF3
MC
R
52
C
POWER
SUPPLY
52C
L1/1 T1/2
YLW
WHT WHT
F3
(5A)
RED
L3/5 T3/6
BLU
ORN
49C
RED
WHT
BLK
S
C
CRED
~/N (1PHASE)
220V 60Hz
L
N

11
CP
C3,4
F3
MC
MF3,4
TB1
TB3
26C
49F3,4
52C
63H
63L
COMPRESSOR PROTECTOR
FAN MOTOR CAPACITOR
FUSE(5A)
HC CRANKCASE HEATER
COMPRESSOR
FAN MOTOR
TERMINAL BLOCK (POWER SUPPLY)
TERMINAL BLOCK (CONNECTING WIRES INDOOR/OUTDOOR)
THERMAL SWITCH
47 ANTI-PHASE PROTECTOR
INTERNAL THERMOSTAT
COMPRESSOR CONTACTOR
51C THERMAL RELAY
HIGH PRESSURE SWITCH
LOW PRESSURE SWITCH
NOTES:1.THE DOTTED LINES SHOW FIELD WIRING.
2. TO INDOOR UNIT TERMINAL BLOCK.
YLW
GRN/
BLK
WHT
RED
(5A)
F3
GRY RED
52C
32
31
A1
A2
YLW
YLWGRY
9695
AC
1413
HC
26C
63H 51C
47
63L
52C
ORN
WHT
VLT
WHT
BRN VLT
GRY
YLW
2
1
GRY
47
RTS
RED WHT BLU
L3/5
L2/3
L1/1
52C 51C
3~ (3PHASE)
220V 60Hz
POWER
SUPPLY
C
52
TB1
T3/6
T1/2
T2/4
BLU
WHT
W
V
U
BLK
WHT
RED
MF4
49F4
WHT
ORN
RED
BLU
WHT
YLW
BRN
BLU
MC
MF3
49F3
C4
C3
WHT
ORN
RED
BLU BLU
RED
ORN
WHT
3
1
2
4
3
1
2
4
L3
L2
L1
CP
X17
X6
X14
52C P2P3P3 52C P1BA
WHT
RED
TB3
X6
2
1
1
2
X17X14
CP
C3,4
F3
MC
MF3,4
TB1
TB3
26C
49F3,4
52C
63H
63L
COMPRESSOR PROTECTOR
FAN MOTOR CAPACITOR
FUSE(5A)
HC CRANKCASE HEATER
COMPRESSOR
FAN MOTOR
TERMINAL BLOCK (POWER SUPPLY)
TERMINAL BLOCK (CONNECTING WIRES INDOOR/OUTDOOR)
THERMAL SWITCH
47 ANTI-PHASE PROTECTOR
INTERNAL THERMOSTAT
COMPRESSOR CONTACTOR
51C THERMAL RELAY
HIGH PRESSURE SWITCH
LOW PRESSURE SWITCH
NOTES:1.THE DOTTED LINES SHOW FIELD WIRING.
2. TO INDOOR UNIT TERMINAL BLOCK.
3.POWER SUPPRY 3N~ (3PHASE 4WIRES) 380/220-415/240V 50Hz
GRN/YLW
N
3N~ (3PHASE 4WIRES)
380/220-415/240V 50Hz
POWER SUPPLY
L1
L2
L3
GRY
BLU
BLK
WHT
RED
(5A)
F3
BLU RED
52C
22
21
A1
A2
YLW
YLWGRY
9695
AC
1413
HC
26C
63H 51C
47
63L
52C
ORN
WHT
VLT
WHT
BRN VLT
GRY
YLW
2
1
GRY
47
RTS
RED WHT BLU
L3/5
L2/3
L1/1
52C 51C
C
52
T3/6
T1/2
T2/4
WHT
W
V
U
BLK
WHT
RED
MF4
49F4
WHT
ORN
RED
BLU
WHT
YLW
BRN
BLU
MC
MF3
49F3
C4
C3
WHT
ORN
RED
BLU BLU
RED
ORN
WHT
3
1
2
4
3
1
2
4
CP
X17
X6
X14
52C P2P3P3 52C P1BA
WHT
RED
TB3
X6
2
1
1
2
X17X14
PU-4TJSA1.UK
PU-4YJSA2.UK

12
PU-5TJSA.UK, PU-6TJSA.UK
PU-5YJSA.UK, PU-6YJSA.UK
CIRCUID
BREAKER
WHT
T2/4
49C
49C
49C
GRY
26C
T1/2
GRN/YLW
3~ (3PHASE)
220V 60Hz
POWER SUPPLY
L1
L2
L3 BLK
WHT
RED
(5A)
F3
WHT RED
A1
A2
BLK
AC
1413
63H
47
52C
GRY
RED
WHT
GRY RED BLK
YLW
47
RTS
RED WHT BLK
L3/5
L2/3
L1/1
52C
C
52
T3/6
BLU
T3
T2
T1
BLK
WHT
RED
MF4
49F4
WHT
ORN
RED
BLU
WHT
YLW
BRN
BLU
MC
MF3
49F3
C4
C3
WHT
ORN
RED
BLU BLU
RED
ORN
WHT
3
1
2
4
3
1
2
4
CP
X17
X6
X14
52C P2P3P3 52C P1BA
WHT
RED
TB3
X6
2
1
*
*1
2
X17X14
CP
C3,4
F3
MC
MF3,4
TB1
TB3
26C
47
49F3,4
49C
52C
63H
COMPRESSOR PROTECTOR
FAN MOTOR CAPACITOR
FUSE(5A)
COMPRESSOR
FAN MOTOR
POWER SUPPLY TERMINAL BLOCK
INDOOR/OUTDOOR CONNECTING LINE TERMINAL BLOCK
THERMAL SWITCH
PHASE PROTECTOR
FAN MOTOR INTERNAL THERMOSTAT
INTERNAL THERMOSTAT FOR MC
COMPRESSOR CONTACTOR
HIGH PRESSURE SWITCH
WHT
CIRCUID
BREAKER
BLU
49C
49C
49C
GRY
26C
T1/2
GRN/YLW
N
3N~ (3PHASE 4WIRES)
380/220-415/240V 50Hz
POWER SUPPLY
L1
L2
L3 BLK
WHT
RED
(5A)
F3
BLU
RED
A2
BLK
AC
1413
63H
47
52C
GRY RED
WHT
GRY RED BLK
YLW
47
RTS
RED WHT BLK
L3/5
L2/3
L1/1
52C
C
52
T3/6
T2/4
T3
T2
T1
BLK
WHT
RED
MF4
49F4
WHT
ORN
RED
BLU
WHT
YLW
BRN
BLU
MC
MF3
49F3
C4
C3
WHT
ORN
RED
BLU BLU
RED
ORN
WHT
3
1
2
4
3
1
2
4
CP
X17
X6
X14
52C P2P3P352CP1BA
WHT
RED
TB3
X6
2
1
*
*1
2
X17X14
CP
C3,4
F3
MC
MF3,4
TB1
TB3
26C
47
49F3,4
49C
52C
63H
COMPRESSOR PROTECTOR
FAN MOTOR CAPACITOR
FUSE(5A)
COMPRESSOR
FAN MOTOR
POWER SUPPLY TERMINAL BLOCK
INDOOR/OUTDOOR CONNECTING LINE TERMINAL BLOCK
THERMAL SWITCH
PHASE PROTECTOR
FAN MOTOR INTERNAL THERMOSTAT
INTERNAL THERMOSTAT FOR MC
COMPRESSOR CONTACTOR
HIGH PRESSURE SWITCH
NOTES:1.THE DOTTED LINES SHOW FIELD WIRING.
2. TO INDOOR UNIT TERMINAL BLOCK.
A1

13
6REFRIGERANT SYSTEM DIAGRAM
PU-1.6VLJA2.UK
PU-2VJA2.UK,PU-2NJA1.UK
Low pressure
switch
Charge
plug
Ball
valve
Ø15.88
(5/8)
Ball valve
(with service port)
Accumulator
Ø9.52
(3/8)
PU-1.6 (O.D.3.2oI.D.1.8-R900)
PU-2 (O.D.4.0oI.D.2.0-R430)
Check plug
Compressor
Capillary tube
O.D.3.2oI.D.1.2-R1000
Capillary tube
for injection
(Only PU-2NJ1.UK
PU-2VJA2.UK)
Strainer
Outdoor heat
exchanger
High pressure
switch
flow of refrigerant
PU-2.5VJA2.UK
PU-2.5NJA1.UK
Charge
plug
Ball
valve
Ball valve
(with service port)
Accumulator
Ø9.52
(3/8)
Compressor
Capillary tube for
injection
O.D. 3.2o I.D. 1.2-R1000
Strainer
Outdoor heat
exchanger
Check
plug
flow of refrigerant
Low pressure
switch High pressure
switch
Ø15.88
(5/8)
Capillary
tube
(O.D.3.2oI.D.1.6
-R760)o2pcs
PU-3VJA2.UK,PU-3YJA2.UK,PU-3NJA1.UK
PU-4VLJSA2.UK,PU-4YJSA2.UK,PU-4TJSA1.UK
PU-5TJSA.UK, PU-5YJSA.UK
PU-6TJSA.UK, PU-6YJSA.UK
Charge
plug
Ball
valve
Ball valve
(with service port)
Accumulator
Ø9.52
(3/8)
Compressor
Capillary tube for
injection
Strainer
Outdoor heat
exchanger
Check
plug
flow of refrigerant
Low pressure
switch High pressure
switch
Capillary
tube
PU-3NJA,3VJA
PU-3YJA
(O.D.3.2oI.D.1.8-R800)o2pcs
PU-4VLJSA
PU-4YJSA
PU-4TJSA
(O.D.3.2oI.D.2.0-R840)o2pcs
PU-3JA
Ø15.88
(5/8)
PU-4JSA
Ø19.05
(3/4)
PU-3VJA
PU-3YJA
PU-3NJA
PU-4YJSA
PU-4TJSA
(O.D.3.2oI.D.2.0-R520)
(O.D.3.2oI.D.1.4-R800)
(O.D.3.2oI.D.1.6-R500)
(O.D.3.2oI.D.1.2-R500)
Only
}
Strainer
Outdoor
heat
exchanger
Ball
valve
Ball valve
(with service port)
High pressure
switch
Compressor
Accumulator
DPR
Capillary tube
PU-5Y·TJSA (O.D. 4.0 oI.D. 2.4 –R400)
PU-6Y·TJSA (O.D. 4.0 oI.D. 2.4 –R200)
Capillary tube
PU-5Y·TJSA
(O.D. 4.0 oI.D. 2.4 –R840)o2pcs
PU-6YJSA
(O.D. 4.0 oI.D. 2.4 –R1200)o2pcs
PU-6TJSA
(O.D. 4.0 oI.D. 2.4 –R740)o2pcs
[9.52
(3/8)
[19.05
(3/4)
Check plug
Charge
plug
: flow of refrigerant

14
7DISASSEMBLY PROCEDURE
OPERATING PROCEDURE PHOTOS
1. Removing the electrical parts
(1)Remove the 3 screws at the front and the 2 screws at
the rear of the top panel.
(2) Remove the top panel.
(3)Remove the screw from the panel cover. Unhook the
catches from the side panel and pull the panel cover
toward you to remove.
(4)Remove the screw from the service panel. Pull down the
service panel to unhook the caches. Pull the service
panel toward you to remove.
2. Removing the fan motor
(1) Remove the 3 screws and the front panel.
Open the panel to a 45-degree angle and lift it to
remove. The panel is hooked by 3 catches on the left
side.
(2)Remove the propeller nuts and the propellers.
(3)Remove the 3 screws each and the fan motors.
Disconnect the lead connectors.
Model : PU-4JSA.UK type
Photo 1
Photo 2
Photo 3
Panel cover
Propeller
nut
Screws
Terminal block
Screws
52C relay
Run capacitor
Compressor protector
Propeller Crankcase heater
Valve bed
High-pressure
switch
Separator support place
Motor support

15
OPERATING PROCEDURE PHOTOS
3. Removing the heat exchanger and the compressor
NOTE :When removing the panels, move them up and down
to unhook catches.
(1)Remove the rear panel set screws: 2 screws at the
front, 1 screw on the side, and 3 screws at the rear.
(2) Remove the valve bed.
(3) Open the rear panel rearward to remove.
(4)Remove the 4 screws of the right side panel and
remove it.
(5)Remove the 3 screws of the rear guard and remove it.
(6)Remove the 4 screws of the separator support plate
and remove it.
(7)Remove the 2 screws of the motor support and remove
it.
(8)Remove the 5 screws of the valve bed. Lift the valve
bed to unhook the catches on both sides.
(9)Remove the electrical parts box.
(10) Disconnect the connectors of the high-pressure
switch, crankcase heater, shell thermo, and fan motor.
(11)Remove the 2 screws of the separator and remove it.
(12)Remove the 2 screws of the heat exchanger and
remove it.
(13) Detach the welded points of the pipe.
(14) Remove the 3 nuts of the compressor and remove it.
(15) Detach the welded points of the suction pipe and dis-
charge pipe.
Photo 4
Photo 5
Photo 6
Screws
Screws
Heat exchanger
SUCTION
Muffler
Compressor
Ball valve
Charge plug
Accumulator

16
8PARTS LIST
STRUCTURAL PARTS
PU-1.6VLJA.UK, PU-2VJA.UK
PU-1.6VLJA1.UK, PU-2VJA1.UK
112
2
7
1413 9611
5
3
4
8105
1
2
3
4
5
6
7
8
9
10
11
12
13
14
R01 A00 641
—
S70 020 668
S70 001 675
R01 A00 655
S70 020 661
R01 A00 662
—
—
R01 A00 682
R01 A00 658
R01 A00 698
S70 021 130
S70 020 686
S70 001 686
Part No. Part Name Specification
No.
Q,ty/set
VLJA.UK
VLJA1.UK
PU-1.6
VJA.UK
VJA1.UK
PU-2
Wining
Diagram
Symbol
Recom-
mended
Q,ty
Price
Unit Amount
TOP PANEL
F. ST SCREW
FRONT PANEL
FAN GUARD
PANEL HANDLE
SERVICE PANEL
SIDE PANEL
LABEL (MITSUBISHI)
LABEL (BRAND)
REAR PANEL
PANEL COVER
REAR GUARD
MOTOR SUPPORT
BASE
BASE
1
13
1
1
3
1
1
1
1
1
1
1
1
1
1
13
1
1
3
1
1
1
1
1
1
1
1
1
(Z004M203H10)
(DG79R130H01)
(BC79G510H02)
(5O10)
Remarks
(Deawing No)

17
1
2
3
4
5
6
7
8
9
10
11
12
13
Part No. Part Name
SpecificationNo.
Q,ty/set
Wiring
Diagram
Symbol
Recom-
mended
Q,ty
Price
Unit Amount
TOP PANEL
F. ST SCREW
FRONT PANEL
FAN GUARD
PANEL HANDLE
SERVICE PANEL
SIDE PANEL
LABEL (MITSUBISHI)
LABEL(BRAND)
REAR PANEL
PANEL COVER
REAR GUARD
MOTOR SUPPORT
MOTOR SUPPORT
BASE
BASE
1
13
1
1
3
1
1
1
1
1
1
1
1
1
1
13
1
1
3
1
1
1
1
1
1
1
1
1
1
13
1
1
3
1
1
1
1
1
1
1
1
1
Remarks
(Drawing No.)
(DG79R130H01)
(BC79G510H02)
(Z004M203H10)
(5o10)
—
—
—
14
PU-1.6
VLJA2
.UK
VJA2
.UK
NJA1
.UK
PU-2
R01 A00 641
R01 A00 668
R01 A00 675
R01 A00 655
R01 A00 661
R01 A00 662
R01 A00 682
R01 A00 658
R01 A00 698
S70 021 130
S70 030 130
R01 A04 686
R01 A00 686
W
112
2
7
1413 9611
5
3
4
8105
STRUCTURAL PARTS
PU-1.6VLJA2.UK
PU-2VJA2.UK
PU- 2NJA1.UK

18
1
2
3
4
5
6
7
8
9
10
11
12
13
14
R01 A00 641
—
S70 001 668
S70 001 675
R01 A00 655
S70 001 661
R01 A08 662
—
—
R01 A08 682
R01 A00 658
R01 A08 698
S70 030 130
S70 001 686
Part No. Part Name
No.
Q,ty/set
PU-2.5 PU-3
VJA.UK
VJA1.UK
VJA.UK
VJA1.UK
YJA.UK
YJA1.UK
Wining
Diagram
Symbol
Recom-
mended
Q,ty
Price
Unit Amount
TOP PANEL
F. ST SCREW
FRONT PANEL
FAN GUARD
PANEL HANDLE
SERVICE PANEL
SIDE PANEL
LABEL (MITSUBISHI)
LABEL (BRAND)
REAR PANEL
PANEL COVER
REAR GUARD
MOTOR SUPPORT
BASE
1
13
1
1
3
1
1
1
1
1
1
1
1
1
1
13
1
1
3
1
1
1
1
1
1
1
1
1
1
13
1
1
3
1
1
1
1
1
1
1
1
1
(Z004M203H10)
(DG79R130H01)
(BC79G510H02)
(5O10)
Remarks
(Deawing No)
Specification
W
STRUCTURAL PARTS
PU-2.5VJA.UK, PU-3VJA.UK, PU-3YJA.UK
PU-2.5VJA1.UK, PU-3VJA1.UK, PU-3YJA1.UK
112
2
7
14 13 9 6 11
5
3
4
8
10
5

19
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Part No. Part Name
SpecificationNo.
Q,ty/set
Wiring
Diagram
Symbol
Recom-
mended
Q,ty
Price
Unit Amount
TOP PANEL
F. ST SCREW
FRONT PANEL
FAN GUARD
PANEL HANDLE
SERVICE PANEL
SIDE PANEL
LABEL (MITSUBISHI)
LABEL(BRAND)
REAR PANEL
PANEL COVER
REAR GUARD
MOTOR SUPPORT
BASE
1
13
1
1
3
1
1
1
1
1
1
1
1
1
1
13
1
1
3
1
1
1
1
1
1
1
11
11
1
13
1
1
3
1
1
1
1
1
1
1
Remarks
(Drawing No.)
(Z004M207H10)
(5o10)
PU-2.5 PU-3
VJA2.UK
NJA1.UK
VJA2.UK
YJA2.UK
NJA1.UK
(BC79G510H02)
(DG79R130H01)
R01 A00 641
—
R01 A08 668
R01 A00 675
R01 A00 655
R01 A08 661
R01 A08 662
—
—
R01 A08 682
R01 A00 658
R01 A08 698
S70 030 130
R01 A04 686
W
W
W
W
112
2
7
14 13 9 6 11
5
3
4
8
10
5
STRUCTURAL PARTS
PU-2.5VJA2.UK
PU-2.5NJA1.UK
PU-3VJA2.UK
PU-3YJA2.UK
PU-3NJA1.UK

20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
R01 A00 641
—
S70 004 668
S70 001 675
T7W 510 241
S70 004 661
T7W 515 716
—
—
R01 A11 682
R01 A00 658
R01 A11 698
S70 004 130
S70 001 686
Part No. Part Name Specification
No.
Q,ty/set
VLJSA.UK
VLJSA1.UK
YJSA.UK
YJSA1.UK
PU-4
Wining
Diagram
Symbol
Recom-
mended
Q,ty
Price
Unit Amount
TOP PANEL
F. ST SCREW
FRONT PANEL
FAN GUARD
PANEL HANDLE
SERVICE PANEL
SIDE PANEL
LABEL (MITSUBISHI)
LABEL (BRAND)
REAR PANEL
PANEL COVER
REAR GUARD
MOTOR SUPPORT
BASE
1
13
1
2
3
1
1
2
1
1
1
1
1
1
1
13
1
2
3
1
1
2
1
1
1
1
1
1
(Z004M203H10)
(DG79R130H01)
(BG79G510H02)
(5O10)
Remarks
(Deawing No)
STRUCTURAL PARTS
PU-4VLJSA.UK, 4YJSA.UK
PU-4VLJSA1.UK, 4YJSA1.UK
112
2
7
14 13 9 5 11
5
3
4
810
6