SERVICE MANUAL
SPLIT-TYPE,AIR CONDITIONERS
SPLIT-TYPE,HEAT PUMP AIR CONDITIONERS
CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················4
3. INDOOR/OUTDOOR
CORRESPONDENCE TABLE ···························7
4. INDOOR UNITS COMBINATION ·······················8
5. SPECIFICATION···············································13
6. NOISE CRITERIA CURVES···························· 19
7. OUTLINES AND DIMENSIONS ······················ 22
8. WIRING DIAGRAM ··········································28
9. REFRIGERANT SYSTEM DIAGRAM··············35
10. PERFORMANCE CURVES······························46
11. MICROPROCESSOR CONTROL···················102
12. SERVICE FUNCTIONS···································120
13. TROUBLESHOOTING····································122
14. DISASSEMBLY INSTRUCTIONS···················148
15. PARTS LIST····················································166
16. OPTIONAL PARTS·········································184
Wireless type
Models
MSC-07RV -
(
WH
)
· MU-07RV -
MSC-09RV -
(
WH
)
· MU-09RV -
MSC-12RV -
(
WH
)
· MU-12RV -
MSC-07RV -
(
WH
)
· MUH-07RV -
MSC-09RV -
(
WH
)
· MUH-09RV -
MSC-12RV -
(
WH
)
· MUH-12RV -
Multi system type
MSC-07RV -
(
WH
)
· MUX-10RV -
MSC-09RV -
(
WH
)
· MUX-18RV -
MSC-12RV -
(
WH
)
· MUX-24RV -
Inverter controlled multi system type
· MXZ-18RV -
· MXZ-32RV -
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No. OB227
REVISED EDITION-B
MSC-07RV -
MSC-09RV -
MSC-12RV -
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Revision:
• MUX-10/18/24RV - has been added.
• MXZ-18/32RV - has been added.
• Noise criteria curves has been added.
• Performance data has been added.
• Specification has been partially modified.
• Refrigerant system diagram has been partially
modified.
• Please void OB227 REVISED EDITION-A
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NOTE: (Only MXZ-32RV - )
This manual describes technical data of MSC
type indoor unit .
For other indoor unit refer to the service manuals
No. OB229 REVISED EDITION-A of correspond-
ing models.
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