Mitsubishi Electric SUZ-KA25VA2 Operating manual

TECHNICAL & SERVICE MANUAL
No. OCB472
REVISED EDITION-A
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
HFC
utilized
R410A
July 2010
R410A
Outdoor unit
[Model names] [Service Ref.]
Indication of
model name
NOTE:
This service manual describes technical data of the
outdoor units.
RoHS compliant products have <G> mark on the spec
name plate.
For servicing of RoHS compliant products, refer to the
RoHS Parts List.
SUZ-KA25VA2.TH
SUZ-KA35VA2.TH
SERVICE MANUAL (OCH472)
CONTENTS
1. RoHS PARTS LIST............................................ 2
SUZ-KA25VA2
SUZ-KA35VA2
SUZ-KA50VA2
SUZ-KA60VA2
SUZ-KA71VA2
SUZ-KA25VA2.TH
SUZ-KA35VA2.TH
SUZ-KA50VA2.TH
SUZ-KA60VA2.TH
SUZ-KA71VA2.TH
Revision:
•Part No. of INVERTER P.C.
BOARD (P.11) has been
modified.

2
1-1. OUTDOOR UNIT ELECTRICAL PARTS
SUZ-KA25VA2.TH SUZ-KA35VA2.TH
1RoHS PARTS LIST
10
6
12
5
3
7
8
9
4

33
Part numbers that are circled are not shown in the illustration.
No.
RoHS
Part No. Part Name
Symbol
in Wiring
Diagram
Q'ty/unit
Remarks
SUZ-KA•VA2.TH
25 35
1 G E12 838 337 REACTOR L61 1 1
2 G E12 C34 306 THERMISTOR SET RT61,RT62 1 1
DEFROST, DISCHARGE
3 G E12 927 308 AMBIENT TEMPERATURE THERMISTOR RT65 1 1
4 G E12 C34 307 OUTDOOR HEAT EXCHENGER
TEMPERATURE THERMISTOR RT68 1 1
5 G E12 C34 490 R.V. COIL 21S4 1 1
6 G E12 735 241 FUSE HOLDER 1 1
7 G E12 735 382 FUSE F61 1 1 T20AL250V
8 G E12 D69 374 TERMINAL BLOCK TB1 1 1 3P
9 G E12 D70 374 TERMINAL BLOCK TB2 1 1 3P
10 G E17 612 451 INVERTER P.C. BOARD 1 Including heat sink
and RT64
GE17 614 451 INVERTER P.C. BOARD 1
11 G E12 784 382 FUSE
F701,F801,F901 1 1 T3.15AL 250V
12 G E12 661 385 VARISTOR
NR61~NR64
11
1-1. OUTDOOR UNIT ELECTRICAL PARTS
SUZ-KA25VA2.TH SUZ-KA35VA2.TH

4
1
12
11
2
15
17
13
10 9
345678
16
14
18
19
1-2. OUTDOOR UNIT UNIT STRUCTURAL PARTS AND FUNCTIONAL PARTS
SUZ-KA25VA2.TH SUZ-KA35VA2.TH

5
1-2. OUTDOOR UNIT UNIT STRUCTURAL PARTS AND FUNCTIONAL PARTS
SUZ-KA25VA2.TH SUZ-KA35VA2.TH
Part numbers that are circled are not shown in the illustration.
No.
RoHS
Part No. Part Name
Symbol
in Wiring
Diagram
Q'ty/unit
Remarks
SUZ-KA•VA2.TH
25 35
1 G E12 927 232 CABINET 1 1
2 G E12 927 521 GRILLE 1 1
3 G E12 927 501 PROPELLER 1 1
4 G E12 D69 290 BASE 1 1
5G E12 D69 900 COMPRESSOR MC 1 KNB073FFDHC
G E12 D70 900 COMPRESSOR MC 1 KNB092FFAHC
6 G E12 065 506 COMPRESSOR RUBBER SET 3 3 3 RUBBERS/SET
7 G E12 D69 661 STOP VALVE (GAS) 1 1 ø9.52
8 G E12 D58 662 STOP VALVE (LIQUID) 1 1 ø6.35
9 G E12 927 245 SERVICE PANEL 1 1
10 G E12 927 233 BACK PANEL 1 1
11 G E12 927 640 EXPANSION VALVE 1 1
12 G E12 927 493 EXPANSION VALVE COIL LEV 1 1
13 G E12 D65 961 4-WAY VALVE 1 1
14 G E12 B83 523 CONDENSER NET 1
G E12 929 523 CONDENSER NET 1
15 G E12 D69 293 SEPARATOR 1
G E12 C34 293 SEPARATOR 1
16 G E12 927 515 MOTOR SUPPORT 1
G E12 929 515 MOTOR SUPPORT 1
17 G E12 927 297 TOP PANEL 1 1
18 G E12 D69 630 OUTDOOR HEAT EXCHANGER 1
G E12 D70 630 OUTDOOR HEAT EXCHANGER 1
19 G E12 D69 301 OUTDOOR FAN MOTOR MF 11
RC0J50-
20 G E12 927 937 CAPILLARY TUBE 11
ø3.0 × ø2.0 × 240
21 G E12 735 936 CAPILLARY TUBE 2ø3.0 × ø1.8 × 600

6
SUZ-KA50VA2.TH
1-3. OUTDOOR UNIT STRUCTURAL PARTS, ELECTRICAL PARTS AND FUNCTIONAL PARTS
4
17
1
12911
2
5
6
7
815
13
18
272830
3
10
14
16
25
26
22
23
24
19 20 21
29

7
1-3. OUTDOOR UNIT STRUCTURAL PARTS, ELECTRICAL PARTS AND FUNCTIONAL PARTS
Part numbers that are circled are not shown in the illustration.
No.
RoHS
Part No. Part Name
Symbol
in Wiring
Diagram
Q'ty/unit
Remarks
SUZ-KA50VA2.TH
1 G E12 819 297 TOP PANEL 1
2 G E12 851 630 OUTDOOR HEAT EXCHANGER 1
3 G E12 938 301 OUTDOOR FAN MOTOR MF 1 RC0J60-
4 G E12 851 501 PROPELLER FAN 1
5 G E12 851 290 BASE 1
6 G E12 819 232 CABINET 1
7 G E12 819 009 HANDLE 1
8 G E12 D84 521 FAN GUARD 1
9 G E12 C34 506 COMPRESSOR RUBBER SET 3 3 RUBBERS/SET
10 G E12 E05 900 COMPRESSOR MC 1 SNB130FGBHT
11 G E12 D58 661 STOP VALVE (GAS) 1 ø12.7
12 G E12 D58 662 STOP VALVE (LIQUID) 1 ø6.35
13 G E12 851 640 EXPANSION VALVE 1
14 G E12 D58 493 EXPANSION VALVE COIL LEV 1
15 G E12 D58 490 R.V. COIL 21S4 1
16 G E12 C18 961 4-WAY VALVE 1
17 G E12 819 650 VALVE COVER 1
18 G E12 819 245 SERVICE PANEL 1
19 G E12 D58 306 THERMISTOR SET
RT61,RT62 1DEFROST, DISCHARGE
20 G E12 D58 309 AMBIENT TEMPERATURE THERMISTOR RT65 1
21 G E12 C34 307 OUTDOOR HEAT EXCHANGER
TEMPERATURE THERMISTOR RT68 1
22 G E12 735 241 FUSE HOLDER 1
23 G E12 735 382 FUSE F61 1 T20AL250V
24 G E12 927 374 TERMINAL BLOCK TB1 1 3 P
25 G E12 D69 374 TERMINAL BLOCK TB2 1 3 P
26 G E17 616 451 INVERTER P.C. BOARD 1 Including heatsink and RT64
27 G E12 D58 337 REACTOR L61 1
28 G E12 D58 233 BACK PANEL (OUT) 1
29 G E12 817 009 HANDLE 1
30 G E12 851 515 MOTOR SUPPORT 1
31 G E12 851 936 CAPILLARY TUBE (TAPER PIPE) 1 ø3.6 × ø2.4 × 50
32 G E12 784 382 FUSE
F701,801,901 1 T3.15AL250V
33 G E12 661 385 VARISTOR NR61-64 1

8
SUZ-KA60VA2.TH
1-4. OUTDOOR UNIT STRUCTURAL PARTS, ELECTRICAL PARTS AND FUNCTIONAL PARTS
4
19
9
1
1310 12
2
5
6
7
816
14
20
22
23
24
25
2930
3
11
15
17
18
21
28 27
26

9
1-4. OUTDOOR UNIT STRUCTURAL PARTS, ELECTRICAL PARTS AND FUNCTIONAL PARTS
Part numbers that are circled are not shown in the illustration.
No.
RoHS
Part No. Part Name
Symbol
in Wiring
Diagram
Q'ty/unit
Remarks
SUZ-KA60VA2.TH
1 G E12 819 297 TOP PANEL 1
2 G E12 851 630 OUTDOOR HEAT EXCHANGER 1
3 G E12 938 301 OUTDOOR FAN MOTOR MF 1 RC0J60-
4 G E12 851 501 PROPELLER FAN 1
5 G E12 851 290 BASE 1
6 G E12 819 232 CABINET 1
7 G E12 819 009 HANDLE 1
8 G E12 D84 521 FAN GUARD 1
9 G E12 853 646 HIGH PRESSURE SWITCH HPS 1
10 G E12 C34 506 COMPRESSOR RUBBER SET 3 3 RUBBERS/SET
11 G E12 E05 900 COMPRESSOR MC 1 SNB130FGBHT
12 G E12 819 661 STOP VALVE (GAS) 1 ø15.88
13 G E12 821 662 STOP VALVE (LIQUID) 1 ø6.35
14 G E12 851 640 EXPANSION VALVE 1
15 G E12 851 493 EXPANSION VALVE COIL LEV 1
16 G E12 D02 490 R.V. COIL 21S4 1
17 G E12 C18 961 4-WAY VALVE 1
18 G E12 819 650 VALVE COVER 1
19 G E12 819 245 SERVICE PANEL 1
20 G E17 618 450
OUTDOOR ELECTRONIC CONTROL P.C. BOARD 1
21 G E12 D69 374 TERMINAL BLOCK TB2 1 3P
22 G E12 935 374 TERMINAL BLOCK TB1 1 3P
23 G E12 851 337 REACTOR
L 1
24 G E12 935 444 NOISE FILTER P.C. BOARD 1
25 G E12 935 309 AMBIENT TEMPERATURE THERMISTOR RT65 1
26 G E12 851 308 THERMISTOR SET RT61,RT62,RT68 1
DEFROST, DISCHARGE
OUTDOOR HEAT EXCHANGER
27 G E12 B79 440 POWER BOARD 1 Including heatsink and RT64
28 G E12 D58 233 BACK PANEL (OUT) 1
29 G E12 817 009 HANDLE 1
30 G E12 851 515 MOTOR SUPPORT 1
31 G E12 784 382 FUSE F801 1 T3.15AL 250V
32 G E12 B79 382 FUSE F911 1 T1AL 250V
33 G E12 977 385 FUSE & VARISTOR F64,NR64 1
34 G E12 851 936 CAPILLARY TUBE (TAPER PIPE) 1 ø3.6 × ø2.4 × 50

10
SUZ-KA71VA2.TH
1-5. OUTDOOR UNIT STRUCTURAL PARTS, ELECTRICAL PARTS AND FUNCTIONAL
PARTS
4
17
1
15
911
2
8
5
6
14
12
18
262728
3
10
13
16
23
24
22
20
21
19
7
25