Mitsubishi Electric MS-12NV - E2 (WH) User Manual

SERVICE MANUAL
SPLIT-TYPE,HEAT PUMP AIR CONDITIONERS
CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················3
3. SPECIFICATION·················································6
4. OUTLINES AND DIMENSIONS ·························9
5. WIRING DIAGRAM ··········································12
6. REFRIGERANT SYSTEM DIAGRAM··············20
7. PERFORMANCE CURVES······························24
8. MICROPROCESSOR CONTROL ····················27
9. SERVICE FUNCTIONS ····································34
10. TROUBLESHOOTING······································37
11. DISASSEMBLY INSTRUCTIONS·····················45
12. PARTS LIST······················································53
13. OPTIONAL PARTS···········································61
Wireless type
Models
MS-07NV -
(
WH
)
· MU-07NV -
MS-09NV -
(
WH
)
· MU-09NV -
MS-12NV -
(
WH
)
· MU-12NV -
MS-18NV -
(
WH
)
· MU-18NV -
MS-24NV -
(
WH
)
· MU-24NV -
MS-07NV -
(
WH
)
· MU-07NV -
MS-09NV -
(
WH
)
· MU-09NV -
MS-12NV -
(
WH
)
· MU-12NV -
MS-18NV -
(
WH
)
· MU-18NV -
MS-24NV -
(
WH
)
· MU-24NV -
MS-18NV -
(
WH
)
· MU-18NV -
E3E3
E2E2
E2E2
E2E2
E2E2
E2E2
E1E1
E1E1
E1E1
E1E1
E1E1
No. OB206
MS-18NV -
MS-24NV -
MS-18NV -
MS-24NV -
MS-18NV -
E3
E2
E2
E1
E1
This Servise Manual OB206 deals with MS-07/09/12/18/24NV-E1,
MU-07/09/12/18/24NV-E1, MS-18NV-E2, and MU-18NV-E2 in
OB175 THIRD EDITION issued in June in 1997.
Therfore, please refer to OB206, not to OB175 THIRD EDITION,
for the above models.
OB206t-1.qxp 25/9/97 6:42 PM Page 1

Mitsubishi Electric MS-12NV - E2 (WH) Specifications

General

Cooling Capacity	3.5 kW
Heating Capacity	4.0 kW
Power Supply	220-240 V, 50 Hz
Refrigerant	R410A
Type	Split System