SERVICE MANUAL
CONTENTS
1. PART NAMES AND FUNCTIONS······················2
2. SPECIFICATION·················································4
3. NOISE CRITERIA CURVES·······························5
4. OUTLINES AND DIMENSIONS ·························6
5. WIRING DIAGRAM ············································7
6. REFRIGERANT SYSTEM DIAGRAM················7
7. SERVICE FUNCTIONS ······································8
8. TROUBLESHOOTING······································10
9. DISASSEMBLY INSTRUCTIONS ····················19
10. PARTS LIST······················································21
11. OPTIONAL PARTS···········································23
Wireless type
Models
MSZ-A09YV -
(WH)
MSZ-A12YV -
(WH)
E1
E1
No. OB327
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
Indication of model name
MSZ-A09YV -
MSZ-A12YV -
E1
E1
NOTE:
This service manual describes technical data of the indoor units.
•Refer to the service manual OB328 when MSZ-A09YV- or MSZ-A12YV- is connected
with MUZ-A09YV- , MUZ-A12YV- , MUZ-A09YVH- or MUZ-A12YVH- .
•Refer to the service manual OB319 when MSZ-A09YV- or MSZ-A12YV- is connected
with MXZ-A18WV- , MXZ-A26WV- or MXZ-A32WV- as multi system units.
E1E1E1
E1E1
E1E1E1E1
E1E1
OB327 --1qxp 04.1.8 1:41 PM Page 1
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