SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················6
3. INDOOR/OUTDOOR
CORRESPONDENCE TABLE ···························8
4. INDOOR UNITS COMBINATION ·······················9
5. SPECIFICATION···············································10
6. NOISE CRITERIA CURVES ···························· 17
7. OUTLINES AND DIMENSIONS ······················ 20
8. WIRING DIAGRAM ··········································25
9. REFRIGERANT SYSTEM DIAGRAM ··············32
10. PERFORMANCE CURVES ······························45
11. MICROPROCESSOR CONTROL·····················84
12. SERVICE FUNCTIONS···································102
13. TROUBLESHOOTING····································104
14. DISASSEMBLY INSTRUCTIONS···················129
15. PARTS LIST····················································144
16. OPTIONAL PARTS·········································157
Wireless type
Models
MSC-A07WV -
(WH)
· MU-A07WV -
MSC-A09WV -
(WH)
· MU-A09WV -
MSC-A12WV -
(WH)
· MU-A12WV -
MSC-A07WV -
(WH)
· MUH-A07WV -
MSC-A09WV -
(WH)
· MUH-A09WV -
MSC-A12WV -
(WH)
· MUH-A12WV -
Multi system type
Models
MSC-A07WV -
(WH)
· MUX-A10WV -
MSC-A09WV -
(WH)
· MUX-A19WV -
MSC-A12WV -
(WH)
· MUX-A20WV -
· MUX-A25WV -
· MUX-A26WV -
Inverter-controlled multi system Model
· MXZ-A18WV -
E1
E1
E1
E1
E1
E1
E1
E1
E1
E1
E1
E1
E1
E1
E1
E1
E1
E1
E1
E1
E1
MSC-A07WV -
MSC-A09WV -
MSC-A12WV -
E1
E1
E1
No. OB307
REVISED EDITION-A
HFC
utilized
R410A
SPLIT-TYPE, AIR CONDITIONERS
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
Revision:
●
MXZ-A18WV -
have been added.
●
MSC-A07/09/12WV -
Part No..have changed.
VARISTOR (NR11& NR12)
E02 336 385
➔
E02 749 385
●
Please void OB307.
E1
E1
Indication of
model name
Remote
controller
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