SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES ····································3
2. PART NAMES AND FUNCTIONS······················7
3. INDOOR/OUTDOOR
CORRESPONDENCE TABLE ···························7
4. INDOOR UNITS COMBINATION ·····················10
5. SPECIFICATION···············································21
6. NOISE CRITERIA CURVES·····························23
7. OUTLINES AND DIMENSIONS ·······················24
8. WIRING DIAGRAM ··········································27
9. REFRIGERANT SYSTEM DIAGRAM··············30
10. PERFORMANCE CURVES······························33
11. MICROPROCESSOR CONTROL·····················47
12. TROUBLESHOOTING······································52
13. DISASSEMBLY INSTRUCTIONS·····················71
14. PARTS LIST······················································78
15. OPTIONAL PARTS···········································83
Inverter-controlled multi system
Models
MXZ-A18WV -
MXZ-A26WV -
MXZ-A32WV -
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No. OB319
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
MXZ-A18WV -
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Indication of model name
NOTE:
•The description for MXZ-A18WV- has been transferred here from service manual OB307 REVISED
EDITION-A.
•SPECIFICATION, PERFORMANCE CURVES and PARTS LIST of MXZ-A18WV- have been partially
modified.
•This service manual describes technical data of outdoor units.
As for indoor units, refer to the service manual OB307 REVISED EDITION-A, OB321, OB327 or B329.
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