Mitsubishi Electric MUZ-GE25VA-a1 User manual

SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES ··································· 3
2. PART NAMES AND FUNCTIONS····················· 4
3. SPECIFICATION················································ 6
4. NOISE CRITERIA CURVES ·····························11
5. OUTLINES AND DIMENSIONS ······················ 13
6. WIRING DIAGRAM·········································· 15
7. REFRIGERANT SYSTEM DIAGRAM ············· 27
8. PERFORMANCE CURVES ····························· 31
9. ACTUATOR CONTROL··································· 63
10. SERVICE FUNCTIONS···································· 64
11. TROUBLESHOOTING ····································· 65
12. DISASSEMBLY INSTRUCTIONS···················· 86
SPLIT-TYPE AIR CONDITIONERS
NOTE:
RoHS compliant products have <G> mark on the spec name plate.
HFC
utilized
R410A
OUTDOOR UNIT
Indoor unit service manual
MSZ-GE•VA Series (OBH531)
PARTS CATALOG (OBB532)
MUZ-GE25VA
MUZ-GE25VAD
MUZ-GE33VA
MUZ-GE35VA
MUZ-GE35VA2
MUZ-GE35VAD
MUZ-GE42VA
MUZ-GE42VAD
Models
MUZ-GE25VA -A1 MUZ-GE50VA -A1
MUZ-GE25VA -A2 MUZ-GE50VA2 -A1
MUZ-GE25VAD -A1 MUZ-GE50VAD -A1
MUZ-GE33VA -A1 MUZ-GE60VA -A1
MUZ-GE35VA -A1 MUZ-GE60VAD -A1
MUZ-GE35VA2 -A1 MUZ-GE71VA -A1
MUZ-GE35VA2 -A2 MUZ-GE71VAD -A1
MUZ-GE35VAD -A1 MUZ-GE80VA -A1
MUZ-GE42VA -A1 MUZ-GE80VA2 -A1
MUZ-GE42VAD -A1 MUZ-GE80VAD -A1
No. OBH532
REVISED EDITION-E
Please void OBH532 REVISED EDITION-D.
Revision E:
• MUZ-GE25VAD- A1 , MUZ-GE35VAD- A1 , MUZ-GE42VAD- A1 ,
MUZ-GE50VAD- A1 , MUZ-GE60VAD- A1 , MUZ-GE71VAD- A1
and MUZ-GE80VAD- A1 have been added.

2
Revision A :
• MUZ-GE60VA- A1 , MUZ-GE71VA- A1 and MUZ-GE80VA- A1 have been added.
Revision B:
• MUZ-GE33VA- A1 and MUZ-GE42VA- A1 have been added.
Revision C:
• MUZ-GE35VA2- A1 , MUZ-GE50VA2- A1 and MUZ-GE80VA2- A1 have been added.
Use the specified refrigerant only
Never use any refrigerant other than that specified.
Doing so may cause a burst, an explosion, or fire when the unit is being used, serviced, or disposed of.
Correct refrigerant is specified in the manuals and on the spec labels provided with our products.
We will not be held responsible for mechanical failure, system malfunction, unit breakdown or accidents caused by
failure to follow the instructions.
Revision D:
• MUZ-GE25VA- A2 and MUZ-GE35VA2- A2 have been added.
Revision E:
• MUZ-GE25VAD- A1 , MUZ-GE35VAD- A1 , MUZ-GE42VAD- A1 , MUZ-GE50VAD- A1 , MUZ-GE60VAD- A1 , MUZ-GE71VAD- A1
and MUZ-GE80VAD- A1 have been added.
OBH532E

3
TECHNICAL CHANGES
1
MUZ-GE25VA - A1
MUZ-GE33VA - A1
MUZ-GE35VA - A1
MUZ-GE42VA - A1
MUZ-GE50VA - A1
MUZ-GE60VA - A1
MUZ-GE71VA - A1
MUZ-GE80VA - A1
1. New model
MUZ-GE35VA - A1 MUZ-GE35VA2 - A1
MUZ-GE50VA - A1 MUZ-GE50VA2 - A1
MUZ-GE80VA - A1 MUZ-GE80VA2 - A1
1. Inverter P.C. board has been changed.
MUZ-GE25VA - A1
MUZ-GE25VA - A2
1. Compressor has been changed.
2. Back panel has been changed.
3. Outdoor heat exchanger has been changed.
4. Reactor has been changed.
5. Inverter P.C. board has been changed.
6. Maximum heating capacity has been changed.
MUZ-GE35VA2 - A1
MUZ-GE35VA2 - A2
1. Compressor has been changed.
2. Back panel has been changed.
3. Outdoor heat exchanger has been changed.
4. Inverter P.C. board has been changed.
MUZ-GE25VA - A2 MUZ-GE25VAD - A1
MUZ-GE35VA2 - A2 MUZ-GE35VAD - A1
MUZ-GE42VA - A1 MUZ-GE42VAD - A1
MUZ-GE50VA2 - A1 MUZ-GE50VAD - A1
1. Inverter P.C. board has been changed.
MUZ-GE60VA - A1 MUZ-GE60VAD - A1
MUZ-GE71VA - A1 MUZ-GE71VAD - A1
MUZ-GE80VA2 - A1 MUZ-GE80VAD - A1
1. Outdoor heat exchanger has been changed.
2. R.V coil has been changed.
3. 4-Way valve has been changed.
4. Service panel has been changed.
5. Terminal block has been changed.
6. Inverter P.C. board has been changed.
OBH532E

4
Air outlet
Drain outlet
Piping
Drain hose
Air inlet
(back and side)
Piping
Air outlet
Air inlet
(back and side)
Drain hose
Drain outlet
PART NAMES AND FUNCTIONS
2
MUZ-GE25VA MUZ-GE25VAD MUZ-GE33VA
MUZ-GE35VA MUZ-GE35VA2 MUZ-GE35VAD MUZ-GE42VA MUZ-GE42VAD
MUZ-GE50VA MUZ-GE50VA2 MUZ-GE50VAD
OBH532E

5
ACCESSORIES
Model
MUZ-GE25VA MUZ-GE25VAD
MUZ-GE33VA
MUZ-GE35VA MUZ-GE35VA2
MUZ-GE35VAD
MUZ-GE42VA MUZ-GE42VAD
MUZ-GE50VA
MUZ-GE50VA2
MUZ-GE50VAD
MUZ-GE60VA MUZ-GE60VAD
MUZ-GE71VA MUZ-GE71VAD
MUZ-GE80VA MUZ-GE80VA2
MUZ-GE80VAD
Drain socket 1 1 1
Drain cap - 2 -
Piping
Air outlet
Drain outlet
Air inlet
(back and side)
Drain hose
MUZ-GE60VA MUZ-GE60VAD MUZ-GE71VA MUZ-GE71VAD
MUZ-GE80VA MUZ-GE80VA2 MUZ-GE80VAD
OBH532E