SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················5
3. SPECIFICATION·················································5
4. NOISE CRITERIA CURVES·······························7
5. OUTLINES AND DIMENSIONS ·························8
6. WIRING DIAGRAM ············································9
7. REFRIGERANT SYSTEM DIAGRAM ··············11
8. PERFORMANCE CURVES······························14
9. MICROPROCESSOR CONTROL ····················22
10. TROUBLESHOOTING······································25
11. DISASSEMBLY INSTRUCTIONS·····················32
12. PARTS LIST······················································38
Wireless type
Models
MU-A18WV -
MU-A24WV -
MU-A30WV -
E1
E1
E1
SPLIT-TYPE, AIR CONDITIONERS
MU-A18WV -
E1
Indication of model name
NOTE:
•This service manual describes technical data of outdoor units.
As for indoor units MS-A18WV- , MS-A24WV- and MS-A30WV- , refer to the service manual
OB325.
E1E1E1
No. OB326
REVISED EDITION-A
Revision A:
● Resistance of LEV (Expansion valve) has been
modified.
● Power input and others have been added to
SPECIFICATION.
Please void OB326.
OB326A-1.qxp 04.2.9 10:41 AM Page 1