SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················5
3. SPECIFICATION·················································6
4. OUTLINES AND DIMENSIONS ·······················10
5. WIRING DIAGRAM···········································11
6. REFRIGERANT SYSTEM DIAGRAM··············15
7. DATA·································································17
8. ACTUATOR CONTROL····································30
9. SERVICE FUNCTIONS ····································31
10. TROUBLESHOOTING······································31
11. DISASSEMBLY INSTRUCTIONS·····················59
12. PARTS LIST······················································66
12-1. PARTS LIST·············································66
12-2. RoHS PARTS LIST··································72
13. OPTIONAL PARTS ·························BACK PAGE
Wireless type
Models
MUZ-A09NA MUZ-A09NA-
MUZ-A12NA MUZ-A12NA-
MUZ-A15NA MUZ-A15NA-
MUZ-A17NA MUZ-A17NA-
MUZ-A24NA MUZ-A24NA-
MUY-A15NA
MUY-A17NA
MUY-A24NA
U1
U1
U1
U1
U1
No. OB451
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
OUTDOOR UNIT
Indoor unit service manual
MSZ-A•NA Series (OB450)
MUZ-A09NA MUY-A15NA
MUZ-A12NA MUY-A17NA
MUZ-A15NA
NOTE:
This service manual describes technical data of the outdoor units.
RoHS compliant products have <G> mark on the spec name plate.
For servicing of RoHS compliant products, refer to the PARTS
LIST (RoHS compliant).
TM
OB451--1.qxp 06.3.29 9:51 AM Page 1
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