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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