Models
NTXUKS09A112AA NTXUKS09A112BA
NTXUKS12A112AA NTXUKS12A112BA
NTXUKS18A112AA NTXUKS18A112BA
No. OBHT802
REVISED EDITION-B
INDOOR UNIT
SERVICE MANUAL
Outdoor unit service manual
NTXMMX•A•AA, NTXMPH•A•AA
Series (OBHT702, OCHT573)
PARTS CATALOG (OBBT802)
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 ··············· 9
7. SERVICE FUNCTIONS ···································· 10
8. MICROPROCESSOR CONTROL ···················· 13
9. TROUBLESHOOTING ····································· 22
10. DISASSEMBLY INSTRUCTIONS ···················· 37
OBHT802 REVISED EDITION-A is void.
Revision B:
• Specications of NTXUKS09/12/18A1112AA and
NTXUKS09/12/18A1112BA have been corrected.
• Some descriptions have been modied.
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