Mitsubishi Electric Mr. Slim MSH09NW User manual

SERVICE MANUAL
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
CONTENTS
1. FEATURES·························································3
2. TECHNICAL CHANGE·······································4
3. PART NAMES AND FUNCTIONS······················4
4. SPECIFICATIONS ··············································6
5. DATA·································································10
6. OUTLINES AND DIMENSIONS ·······················23
7. WIRING DIAGRAM ··········································26
8. REFRIGERANT SYSTEM DIAGRAM··············28
9. MICROPROCESSOR CONTROL ····················30
10. SERVICE FUNCTIONS·····································41
11. TROUBLESHOOTING······································43
12. DISASSEMBLY INSTRUCTIONS·····················55
13. PARTS LIST······················································65
14. OPTIONAL PARTS···········································74
Wireless type
Models
MSH09NW(WH) · MUH09NW
MSH12NN(WH) · MUH12NN
MSH15NN(WH) · MUH15NN
MSH17NN(WH) · MUH17NN
No. OB198
The Slim Line.
From Mitsubishi Electric.
L
I
S
T
E
D
R
MSH12NN
MSH15NN
MSH17NN
INDOOR UNIT
MUH12NN
MUH15NN
OUTDOOR UNIT
Remote
controller
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1FEATURES
Models Cooling capacity Heating Capacity SEER HSPF
MSH09NW 8,800Btu/h 10,500Btu/h 10.0 6.8
MSH12NN 12,900Btu/h 13,500Btu/h 10.2 6.8
MSH15NN 14,600Btu/h 14,800Btu/h 10.7 6.8
MSH17NN 16,200tu/h 17,200tu/h 10.3 6.8
MSH12NN, MSH15NN MUH12NN, MUH15NN
LCD wireless
remote controller
NEW “I FEEL CONTROL” IN OUR LCD WIRELESS REMOTE CONTROLLER WITH ON/OFF PROGRAM
TIMER
Mitsubishi Electric’s new wireless remote controller incorporates a number of advanced features that provide even greater con-
trol and ease-to- use. It has a liquid crystal display which indicates such infomation as mode, fan speed and temperature
selected as well as the programmed ON/OFF time. It is also equipped with “I Feel Control”, a unique Mitsubishi Electric feature
that allows the user to adjust the temperature to exactly the level he or she wants simply by tapping the button that describes
present conditions : “Too Cool” or “Too Warm”. The optimum temperature set this way is then memorized for immediate recall
whenever the air conditioner is used again. And what’s more, the new controller has been made more better design and easier
to handle than even before.
Select desired air flow direction.
REMOTE-CONTROL OPERATION MODE
Using the remote controller, you can select from five airflow set-
tings to match room layout and the location of people. Also, you
can set the vane to swing automatically.
Small in size, big on cooling.
COMPACT INDOOR UNIT
The sleek design of the NW/NN Series matches virtually any room
layout. For instance, MSH09NW is 1013/16 ✕321/16 ✕73/16
(H✕W✕D), which used to be 143/16 ✕311/8✕53/8.
AUTO-RESTART FUNCTION
The auto-restart function restarts the equipment when power is
restored following an outage automatically. Operation resumes in
the mode in which the equipment was running immediately before
the outage.
HIGH PERFORMANCE ROTARY COMPRESSOR
The advanced design of Mitsubishi Electric’s powerful and energy-
efficient rotary compressor results in lower operating costs and
longer service life.
MSH09NW
SWING
1013/16
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2
PART NAMES AND FUNCTIONS
3
MSH09NW, MSH12NN, MSH15NN, MSH17NN
REMOTE CONTROLLER
TECHNICAL CHANGES
MSH09EW ➔ MSH09NW
1. Indoor unit has changed.
(Outline dimension changes. 31-1/8”o5-3/8”o14-3/16”(WoDoH)➔32-1/16”o7-3/16”o10-13/16”(WoDoH))
2. Outdoor unit has changed. (Capillary tube and refrigerant had changed.)
3. Remote controller has changed. (The timer function was changed to the clock timer function.)
4. Indoor auto vane has been adopted.
MSH12EN, MSH15EN ➔ MSH12NN, MSH15NN
1. Indoor unit has changed.
(Outline dimension changes. 39-3/8”o7”o14-3/16”(WoDoH)➔39-15/16”o7-1/2”o12-5/8”(WoDoH))
2. Outdoor unit has changed.
(Outline dimension changes. 33-1/2”o11-7/16”o23-7/8”(WoDoH)➔33-7/16”o11-7/16”o23-13/16”(WoDoH))
(Capillary tube, refrigerant and pipe had changed.)
3. Remote controller has changed. (The timer function was changed to the clock timer function.)
4. The swing mode was addedd to indoor auto vane.
MSH17NN
1. New Model
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INDOOR UNIT
MSH09NW


OUTDOOR UNIT
MUH12NN
MUH15NN
MUH09NW
(When the front panel is opened)
MSH09NW MSH09NW
MSH12NN, MSH15NN,MSH17NN MSH12NN, MSH15NN,MSH17NN
MSH12NN
MSH15NN
MSH17NN
MUH17NN
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4
Notes ❈1 : Rating conditions (cooling) — Indoor : 80˚FDB, 67˚FWB, Outdoor : 95˚FDB, 75˚FWB
(heating) — Indoor : 70˚FDB, 60˚FWB, Outdoor : 47˚FDB, 43˚FWB
❈2 : Rating conditions (heating) — Indoor : 70˚FDB, 60˚FWB, Outdoor : 17˚FDB, 15˚FWB
Operating Range
ITEM MODELS MSH09NW
Capacity
Power
consumption
EER [SEER]
HSPF
COP
INDOOR UNIT MODEL
External finish
Power supply
Max. fuse size (time delay)
Min. ampacity
Fan motor
Auxiliary heater
Airflow Lo—Me—Hi
Moisture removal
Sound level Lo-Me-Hi
Cond. drain connection O.D.
Dimensions
Weight
OUTDOOR UNIT MODEL
External finish
Power supply
Max. fuse size (time delay)
Min. ampacity
Fan motor
Compressor
Refrigerant control
Defrost method
Dimensions
Weight
REMOTE CONTROLLER
Control voltage (by built-in transformer)
REFRIGERANT PIPING
Pipe size
Connection method
Between the indoor
& outdoor units
47 [17˚]
Dry
Wet
W
D
H
Model
Winding resistance (at 68˚F) ½
W
D
H
Liquid
Gas
Indoor
Outdoor
Height difference
Piping length
Btu/h
Btu/h
Btu/h
W
W
V, phase, Hz
A
A
F.L.A
A(kW)
CFM
CFM
Pints/h
dB(A)
in.
in.
in.
in.
lbs.
V, phase, Hz
A
A
F.L.A
R.L.A
L.R.A
in.
in.
in.
lbs.
in.
in.
ft
ft
8,800
10,500
5,300
890
890
820
9.9 [10.0]
6.8
3.5
MSH09NW
White
115, 1, 60
15
0.5
0.37
–
208-265-328
177-226-279
2.3
31-37-42
5/8
32-1/16
7-3/16
10-13/16
18
MUH09NW
Munsell 5Y 7/1
115, 1, 60
20
16
0.7
RH-140WGJT
C-R 0.83 C-S 1.48
12
42
Capillary tube
Reverse cycle
30-11/16
10-1/16
21-1/4
80
Wireless type
12V DC (peak voltage)
Not supplied (optional parts)
1/4
3/8
Flared
Flared
Max. 25
Max. 49
❈1
❈1
❈1
❈2
❈1
❈1
❈1
❈2
❈2
Cooling
Heating 47
Heating 17
Cooling
Heating 47
Heating 17
Cooling
Heating
Maximum
Minimum
Maximum
Minimum
Indoor intake air temperature
90˚FDB, 71˚FWB
67˚FDB, 57˚FWB
80˚FDB, 67˚FWB
70˚FDB, 60˚FWB
Outdoor intake air temperature
115˚FDB
67˚FDB
75˚FDB, 65˚FWB
17˚FDB, 15˚FWB
SPECIFICATIONS
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ITEM MODELS MSH12NN MSH15NN
Capacity
Power
consumption
EER [SEER]
HSPF
COP
INDOOR UNIT MODEL
External finish
Power supply
Max. fuse size (time delay)
Min. ampacity
Fan motor
Auxiliary heater
Airflow Lo—Me—Hi
Moisture removal
Sound level Lo-Me-Hi
Cond. drain connection O.D.
Dimensions
Weight
OUTDOOR UNIT MODEL
External finish
Power supply
Max. fuse size (time delay)
Min. ampacity
Fan motor
Compressor
Refrigerant control
Defrost method
Dimensions
Weight
REMOTE CONTROLLER
Control voltage (by built-in transformer)
REFRIGERANT PIPING
Pipe size
Connection method
Between the indoor
& outdoor units
47 [17˚]
Dry
Wet
W
D
H
Model
Winding resistance (at 68˚F) ½
W
D
H
Liquid
Gas
Indoor
Outdoor
Height difference
Piping length
Btu/h
Btu/h
Btu/h
W
W
V, phase, Hz
A
A
F.L.A
A(kW)
CFM
CFM
Pints/h
dB(A)
in.
in.
in.
in.
lbs.
V, phase, Hz
A
A
F.L.A
R.L.A
L.R.A
in.
in.
in.
lbs.
in.
in.
ft
ft
12,600/12,900
13,000/13,500
6,800/7,000
1,280/1,310
1,180/1,250
1,110/1,140
9.8/9.8[10.2/10.2]
3.2/3.2
MSH12NN
311-339-388
3.3
MUH12NN
15
RH-185NHDT
6.8/6.8
White
115, 1, 60
15
0.6
0.43
–
360-395-452
36-39-42
5/8
39-15/16
7-1/2
12-5/8
31
Munsell 5Y7/1
208/230, 1, 60
14
0.52
C-R 1.68 C-S 2.78
10
35
Capillary tube
Reverse cycle
33-7/16
11-7/16
23-13/16
99
Wireless type
12V DC (peak voltage)
Not supplied (optional parts)
1/4
5/8
Flared
Flared
Max. 25
Max. 49
14,300/14,600
14,500/14,800
8,700/8,900
1,350/1,380
1,250/1,300
1,210/1,240
10.6/10.6 [10.7/10.7]
3.4/3.3
MSH15NN
293-321-367
4.7
MUH15NN
20
RH-207NHDT
❈1
❈1
❈1
❈2
❈1
❈1
❈1
❈2
❈2
Cooling
Heating 47
Heating 17
Cooling
Heating 47
Heating 17
Cooling
Heating
Maximum
Minimum
Maximum
Minimum
Indoor intake air temperature
90˚FDB, 71˚FWB
67˚FDB, 57˚FWB
80˚FDB, 67˚FWB
70˚FDB, 60˚FWB
Outdoor intake air temperature
115˚FDB
67˚FDB
75˚FDB, 65˚FWB
17˚FDB, 15˚FWB
Notes ❈1 : Rating conditions (cooling) — Indoor : 80˚FDB, 67˚FWB, Outdoor : 95˚FDB, 75˚FWB
(heating) — Indoor : 70˚FDB, 60˚FWB, Outdoor : 47˚FDB, 43˚FWB
❈2 : Rating conditions (heating) — Indoor : 70˚FDB, 60˚FWB, Outdoor : 17˚FDB, 15˚FWB
❈3 : include auxiliary electric heater operation at 115V
Operating Range
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ITEM MODELS MSH17NN
Capacity
Power
consumption
EER [SEER]
HSPF
COP
INDOOR UNIT MODEL
External finish
Power supply
Max. fuse size (time delay)
Min. ampacity
Fan motor
Auxiliary heater
Airflow Lo—Me—Hi
Moisture removal
Sound level Lo-Me-Hi
Cond. drain connection O.D.
Dimensions
Weight
OUTDOOR UNIT MODEL
External finish
Power supply
Max. fuse size (time delay)
Min. ampacity
Fan motor
Compressor
Refrigerant control
Defrost method
Dimensions
Weight
REMOTE CONTROLLER
Control voltage (by built-in transformer)
REFRIGERANT PIPING
Pipe size
Connection method
Between the indoor
& outdoor units
47 [17˚]
Dry
Wet
W
D
H
Model
Winding resistance (at 68˚F) ½
W
D
H
Liquid
Gas
Indoor
Outdoor
Height difference
Piping length
Btu/h
Btu/h
Btu/h
W
W
V, phase, Hz
A
A
F.L.A
A(kW)
CFM
CFM
Pints/h
dB(A)
in.
in.
in.
in.
lbs.
V, phase, Hz
A
A
F.L.A
R.L.A
L.R.A
in.
in.
in.
lbs.
in.
in.
ft
ft
16,000/16,200
16,800/17,200
10,100/10,300
1,560/1,580
1,500/1,570
1,410/1,510
10.3/10.3 (10.4/10.4)
6.8/6.8
3.3/3.2
MSH17NN
White
115, 1, 60
15
0.7
0.51
–
406-441-491
342-371-413
5.1
40-43-45
5/8
39-15/16
7-1/2
12-5/8
31
MUH17NN
Munsell 5Y 7/1
208/230, 1, 60
20
15
0.75
RH-231NHDT
C-R 1.65 C-S2.67
11
38
Capillary tube
Reverse cycle
34-1/4
11-5/8
33-1/2
128
Wireless type
12V DC (peak voltage)
Not supplied (optional parts)
1/4
5/8
Flared
Flared
Max. 25
Max. 49
❈1
❈1
❈1
❈2
❈1
❈1
❈1
❈2
❈2
Cooling
Heating 47
Heating 17
Cooling
Heating 47
Heating 17
Cooling
Heating
Maximum
Minimum
Maximum
Minimum
Indoor intake air temperature
90˚FDB, 71˚FWB
67˚FDB, 57˚FWB
80˚FDB, 67˚FWB
70˚FDB, 60˚FWB
Outdoor intake air temperature
115˚FDB
67˚FDB
75˚FDB, 65˚FWB
17˚FDB, 15˚FWB
Notes ❈1 : Rating conditions (cooling) — Indoor : 80˚FDB, 67˚FWB, Outdoor : 95˚FDB, 75˚FWB
(heating) — Indoor : 70˚FDB, 60˚FWB, Outdoor : 47˚FDB, 43˚FWB
❈2 : Rating conditions (heating) — Indoor : 70˚FDB, 60˚FWB, Outdoor : 17˚FDB, 15˚FWB
Operating Range
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MAX. HEIGHT DIFFERENCE
Model
MSH09NW
MSH12NN
MSH15NN
MSH17NN
Additional piping
Max. length : ft
A
49
Gas
[ 3/8

[ 5/8
Piping size O.D. : in. Length of connecting pipe : in.
Liquid

[ 1/4
Indoor unit
16-15/16
Outdoor unit
0
MAX. REFRIGERANT PIPING LENGTH
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DATA
5
MODEL Refrigerant piping length (one way)
MSH09NW
MSH12NN
MSH15NN
MSH17NN
1.0
1.0
1.0
1.0
25ft (std)
0.954
0.954
0.954
0.954
40ft
0.927
0.927
0.927
0.927
49ft
Models
Indoor air Outdoor intake air DB temperature(˚F)
MSH09NW
71
67
63
71
67
63
71
67
63
71
67
63
TC
10.8
10.2
9.6
15.8
15.0
14.1
17.9
16.9
15.9
19.8
18.8
17.7
SHC
6.1
7.1
8.0
9.1
10.6
11.9
9.2
11.0
12.5
10.1
12.0
13.7
TPC
0.79
0.75
0.71
1.17
1.10
1.05
1.23
1.16
1.10
1.41
1.33
1.26
TC
10.1
9.5
8.9
14.8
13.9
13.0
16.7
15.8
14.7
18.5
17.5
16.4
SHC
5.7
6.7
7.4
8.5
9.9
11.0
8.6
10.2
11.6
9.4
11.2
12.7
TPC
0.87
0.82
0.79
1.28
1.21
1.16
1.35
1.28
1.22
1.54
1.46
1.40
TC
9.5
8.8
8.3
13.9
12.9
12.1
15.7
14.6
13.7
17.4
16.2
15.2
SHC
5.4
6.2
6.9
8.0
9.2
10.2
8.1
9.5
10.8
8.8
10.4
11.8
TPC
0.94
0.89
0.85
1.38
1.31
1.25
1.45
1.38
1.31
1.66
1.58
1.51
TC
8.8
8.2
7.5
12.9
12.0
11.0
14.6
13.6
12.5
16.2
15.1
13.9
SHC
5.0
5.7
6.3
7.4
8.5
9.3
7.5
8.8
9.8
8.2
9.6
10.7
TPC
0.98
0.94
0.91
1.45
1.39
1.34
1.53
1.46
1.41
1.75
1.68
1.61
TC
8.1
7.5
6.9
11.9
11.0
10.1
13.4
12.5
11.4
14.9
13.9
12.6
SHC
4.6
5.3
5.7
6.8
7.8
8.5
6.9
8.1
8.9
7.6
8.9
9.8
TPC
1.02
0.99
0.94
1.51
1.45
1.39
1.59
1.53
1.46
1.82
1.75
1.68
IWB
(˚F)75 85 95 105 115
MSH12NN
MSH15NN
MSH17NN
Notes 1. IWB : Intake air wet-bulb temperature
TC : Total Capacity (x103 Btu/h), SHC : Sensible Heat Capacity (x103 Btu/h)
TPC : Total Power Consumption (kW)
2. SHC is based on 80˚F of indoor intake air DB temperature.
1. PERFORMANCE DATA
1) COOLING CAPACITY
2) COOLING CAPACITY CORRECTIONS
MSH09NW, MSH12NN, MSH15NN, MSH17NN
3) HEATING CAPACITY
Models
Models Outdoor intake air WB temperature(˚F)
MSH09NW
75
70
65
75
70
65
75
70
65
75
70
65
TC
6.1
6.5
6.6
7.8
8.3
8.5
8.6
9.1
9.3
10.0
10.6
10.8
TPC
0.66
0.64
0.61
0.93
0.90
0.86
0.97
0.94
0.90
1.17
1.13
1.08
TC
7.6
7.9
8.2
9.8
10.1
10.6
10.7
11.1
11.6
12.5
12.9
13.5
TPC
0.78
0.76
0.73
1.09
1.07
1.03
1.14
1.11
1.07
1.37
1.34
1.30
TC
9.1
9.3
9.6
11.7
11.9
12.4
12.8
13.1
13.5
14.9
15.2
15.7
TPC
0.87
0.85
0.82
1.22
1.19
1.16
1.27
1.24
1.20
1.53
1.49
1.45
TC
10.2
10.5
10.8
13.2
13.5
13.9
14.4
14.8
15.2
16.8
17.2
17.7
TPC
0.91
0.89
0.87
1.28
1.25
1.22
1.33
1.30
1.27
1.61
1.57
1.53
TC
10.6
10.8
11.1
13.6
13.9
14.3
14.9
15.2
15.7
17.3
17.7
18.2
TPC
0.93
0.91
0.88
1.30
1.28
1.24
1.35
1.33
1.29
1.63
1.60
1.55
TC
12.0
12.2
12.5
15.4
15.7
16.1
16.9
17.2
17.6
19.6
20.0
20.5
TPC
0.96
0.94
0.93
1.35
1.33
1.30
1.40
1.38
1.35
1.70
1.66
1.63
IWB
(˚F)15 25 35 43 45 55
MSH12NN
MSH15NNMSH15NNMSH15NNMSH15NNMSH15NN
MSH17NN
Notes 1. IWB : Intake air wet-bulb temperature
TC : Total Capacity (x103 Btu/h), SHC : Sensible Heat Capacity (x103 Btu/h)
TPC : Total Power Consumption (kW)
2. Heating capacity correction factors.
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