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SERVICE MANUAL
SPLIT-TYPE AIR CONDITIONERS
CONTENTS
1. FEATURES·························································3
2. TECHNICAL CHANGES ····································4
3. PART NAMES AND FUNCTIONS······················4
4. SPECIFICATIONS ··············································6
5. DATA···································································9
6. OUTLINES AND DIMENSIONS ·······················17
7. WIRING DIAGRAM ··········································19
8. REFRIGERANT SYSTEM DIAGRAM··············21
9. MICROPROCESSOR CONTROL ····················22
10. SERVICE FUNCTIONS·····································30
11. TROUBLESHOOTING······································31
12. DISASSEMBLY INSTRUCTIONS·····················39
13. PARTS LIST······················································47
14. OPTIONAL PARTS···········································55
Wireless type
Models
MS09NW
(WH)
· MU09NW
MS12NN
(WH)
· MU12NN
MS15NN
(WH)
· MU15NN
MS17NN
(WH)
· MU17NN
No. OB192
The Slim Line.
From Mitsubishi Electric.
L
I
S
T
E
D
R
MS12NN
MS15NN
MS17NN
INDOOR UNIT
MU12NN
MU15NN
MU17NN
OUTDOOR UNIT
Remote
controller
Refer to our Service Manual OB202 when the indoor unit is used in the multi-system operation.
Applied models are MS09NW and MS15NN.
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