SERVICE MANUAL
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
CONTENTS
1. TECHNICAL CHANGES ···································2
2. SPECIFICATION················································5
3. NOISE CRITERIA CURVES······························7
4. WIRING DIAGRAM ···········································8
5. REFRIGERANT SYSTEM DIAGRAM·············10
6. PERFORMANCE CURVES·····························11
7. SERVICE FUNCTIONS ···································23
8. TROUBLESHOOTING ····································23
9. PARTS LIST ····················································24
Wireless type
Models
MSC-C07SV -
(
WH
)
· MUH-C07SV -
MSC-C09SV -
(
WH
)
· MUH-C09SV -
MSC-C12SV -
(
WH
)
· MUH-C12SV -
MSH-C18SV -
(
WH
)
· MUH-C18SV -
E1E1
E1E1
E1E1
E1E1
No. OB250
REVISED EDITION-A
MSC-C07SV -
MSC-C09SV -
MSC-C12SV -
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E1
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NOTE: This service Manual covers only change points.
•MSC-07/09/12RV - , MUH-07/09/12RV -
➔ MSC-C07/C09/C12SV - , MUH-C07/C09/C12SV -
Please refer to the Service Manual OB227 REVISED EDITION-B for unchanged contents.
•MSH-18NV - , MUH-18NV - ➔ MSH-C18SV - , MUH-C18SV -
Please refer to the Service Manual OB229 REVISED EDITION-A for unchanged contents.
E1E1E4E4
E1E1E1E1
Revision
• Set temperature change of Operating Temperature of
Defrosting in MUH-C09SV-
.
• Change of refrigeration oil amount of
MUH-C07/C09SV-
.
• Installed place change of defrost thermistor RT61 in
MUH-C07/C09/C12SV-
.
• Please void OB250.
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OB250-A.qxp 3/10/00 1:19 PM Page 1
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