SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················5
3. SPECIFICATION·················································5
4. NOISE CRITERIA CURVES·······························6
5. OUTLINES AND DIMENSIONS ·························7
6. WIRING DIAGRAM ············································7
7. REFRIGERANT SYSTEM DIAGRAM················8
8. PERFORMANCE CURVES································9
9. TROUBLESHOOTING······································20
10. DISASSEMBLY INSTRUCTIONS·····················23
11. PARTS LIST······················································26
Wireless type
Models
MU-A07YV -
MU-A09YV -
MU-A12YV -
E1
E1
E1
MU-A07YV -
MU-A09YV -
MU-A12YV -
E1
E1
E1
No. OB330
REVISED EDITION-A
SPLIT-TYPE, AIR CONDITIONERS
Indication of
model name
NOTE:
•This service manual describes technical data of outdoor units.
•As for indoor units MSC-A07YV - , MSC-A09YV - and MSC-A12YV - ,
refer to the service manual OB329.
•As for indoor unit MCF-A12WV - , refer to the service manual OB338.
E1
E1E1E1
Revision A:
● MU-A12YV - can be connected to
MCF-A12WV - .
E1
E1
Please void OB330.
OB330-1.qxp 04.3.2 0:57 PM Page 1
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