SERVICE MANUAL
Wireless type
Models
MCFH-13NV-
(WH)
·MUCFH-13NV-
MCFH-18NV-
(WH)
·MUCFH-18NV-
·MUCFH-18NV-
MCFH-24NV-
(WH)
·MUCFH-24NV-
E3E3
E4
E3E3
E4E4
No. OB267
REVISED EDITION-A
(When installed on the ceiling)
(When installed on the floor)
FLOOR AND CEILING TYPE AIR CONDITIONERS
• Refer to service manual OB212 for MCFH-13/18/24/NV- , MUCFH-13/18/24/NV- ,
MCFH-13/18/24/NV- and MUCFH-13/18/24/NV- .
• Refer to service manual OB240 for MCFH-13NV- and MUCFH-13NV- .
• Refer to service manual OB185 REVISED EDITION-C for MCFH-13NV- or MCFH-18NV- is
connected with MXZ-32NV- .
• Refer to service manual OB227 REVISED EDITION-B for MCFH-13NV- or MCFH-18NV- is
connected with MXZ-32RV- .
• Refer to service manual OB254 for MCFH-13NV- or MCFH-18NV- is connected with
MXZ-32SV- .
• As for parts lists, all sub number’s series are included.
E1
E3E4
E1
E3E4
E2
E3E4
E3E3
E2E2
E1E1
Revision:
● MUCFH-18NV- has been added.
MUCFH-18NV- ➔ MUCFH-18NV-
•Path of outdoor heat exchanger has changed .
•Temperature range of high pressure protection has
changed.
•Please void OB267.
E4E3
E4
CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················2
3. SPECIFICATION·················································5
4. NOISE CRITERIA CURVES·······························6
5. OUTLINES AND DIMENSIONS ·························7
6. WIRING DIAGRAM ··········································10
7. REFRIGERANT SYSTEM DIAGRAM··············14
8. PERFORMANCE CURVES······························16
9. MICROPROCESSOR CONTROL ····················32
10. SERVICE FUNCTIONS·····································41
11. TROUBLESHOOTING······································42
12. DISASSEMBLY INSTRUCTIONS·····················55
13. PARTS LIST······················································63
14. OPTIONAL PARTS ······················BACK COVER
OB267--1.qxp 01.12.19 2:58 PM Page 1
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