SERVICE MANUAL
INDOOR UNIT
No. OBH736
REVISED EDITION-C
Models
MSZ-EF09NAW
-
U1
,
U2
MSZ-EF12NAW
-
U1
,
U2
MSZ-EF15NAW
-
U1
,
U2
MSZ-EF18NAW
-
U1
,
U2
MSZ-EF09NAB
-
U1
,
U2
MSZ-EF12NAB
-
U1
,
U2
MSZ-EF15NAB
-
U1
,
U2
MSZ-EF18NAB
-
U1
,
U2
MSZ-EF09NAS
-
U1
,
U2
MSZ-EF12NAS
-
U1
,
U2
MSZ-EF15NAS
-
U1
,
U2
MSZ-EF18NAS
-
U1
,
U2
Outdoor unit service manual
MXZ- •C•NA Series (OBH702, OCH573)
MXZ- •C•NAHZ Series (OBH702, CH573)
OBH736 REVISED EDITION-B is void.
Revision C:
• 9-7. TEST POINT DIAGRAM AND
VOLTAGE has been modied.
CONTENTS
1. TECHNICAL CHANGES ······························2
2. PART NAMES AND FUNCTIONS ··················3
3. SPECIFICATION ········································4
4. OUTLINES AND DIMENSIONS ·····················6
5. WIRING DIAGRAM ·····································7
6. REFRIGERANT SYSTEM DIAGRAM ·············8
7. SERVICE FUNCTIONS ································9
8. MICROPROCESSOR CONTROL ················· 11
9. TROUBLESHOOTING ······························· 19
10. DISASSEMBLY INSTRUCTIONS ················· 31
PARTS CATALOG (OBB736)