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CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················2
3. SPECIFICATION·················································4
4. OUTLINES AND DIMENSIONS ·························5
5. WIRING DIAGRAM ············································6
6. REFRIGERANT SYSTEM DIAGRAM················7
7. SERVICE FUNCTIONS ······································8
8. TROUBLESHOOTING······································10
9. DISASSEMBLY INSTRUCTIONS ····················18
10. PARTS LIST······················································20
11. RoHS PARTS LIST···········································23
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
Outdoor unit service manual
MUH-A·ND Series (OB428)
MSH-A18ND
MSH-A24ND
TM
Wireless type
Models
MSH-A18ND -
MSH-A24ND -
S1
S1
SERVICE MANUAL
INDOOR UNIT
No. OB427
REVISED EDITION-B
Please void OB427 REVISED EDITION-A.
Revision B:
•Remote controller model has been changed.
•RoHS PARTS LIST has been added.
NOTE:
This service manual describes technical data of the indoor units.
RoHS compliant products have <G> mark on the spec name plate.
For servicing of RoHS compliant products, refer to the RoHS PARTS LIST (RoHS compliant).
OB427B-1.qxp 07.5.16 3:30 PM Page 1