Mitsubishi MUH09NW, MSH12NN, MUH12NN, MUH15NN, MUH17NN Service Manual
...
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
L
I
S
T
E
D
R
SERVICE MANUAL
Wireless type
Models
No. OB198
MSH09NW
MSH12NN
MSH15NN
MSH17NN
MSH12NN
MSH15NN
MSH17NN
INDOOR UNIT
(WH)
(WH)
(WH)
(WH)
Remote
controller
· MUH09NW
· MUH12NN
· MUH15NN
· MUH17NN
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
MUH12NN
MUH15NN
OUTDOOR UNIT
The Slim Line.
From Mitsubishi Electric.
1
SWING
1013/16
FEATURES
LCD wireless
MSH12NN, MSH15NN MUH12NN, MUH15NN
remote controller
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
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 10
(H✕W✕D), which used to be 143/
16
✕311/8✕ 53/8.
16
/
✕321/16✕ 73/
16
13
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
3
2
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
3
PART NAMES AND FUNCTIONS
MSH09NW, MSH12NN, MSH15NN, MSH17NN
REMOTE CONTROLLER
4
INDOOR UNIT
MSH09NW
(When the front panel is opened)
MSH09NW
MSH12NN
MSH15NN
MSH17NN
MSH09NW
MSH12NN, MSH15NN,MSH17NN
OUTDOOR UNIT
MUH09NW
MSH12NN, MSH15NN,MSH17NN
MUH12NN
MUH17NN
MUH15NN
5
4
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
Notes ❈1 : Rating conditions (cooling) — Indoor : 80˚FDB, 67˚FWB, Outdoor : 95˚FDB, 75˚FWB
❈2 : Rating conditions (heating) — Indoor : 70˚FDB, 60˚FWB, Outdoor : 17˚FDB, 15˚FWB
(heating) — Indoor : 70˚FDB, 60˚FWB, Outdoor : 47˚FDB, 43˚FWB
Operating Range
6
ITEM MODELS MSH12NN MSH15NN
❈1
❈1
❈1
❈2
❈1
❈1
❈2
❈2
Capacity
Power
consumption
❈1
EER [SEER]
HSPF
Cooling
Heating 47
Heating 17
Cooling
Heating 47
Heating 17
47 [17˚]
COP
INDOOR UNIT MODEL
External finish
Power supply
V, phase, Hz
Max. fuse size (time delay)
Min. ampacity
Fan motor
Auxiliary heater
Airflow Lo—Me—Hi
Dry
Wet
Moisture removal
Sound level Lo-Me-Hi
Cond. drain connection O.D.
W
Dimensions
D
H
Weight
OUTDOOR UNIT MODEL
External finish
Power supply
V, phase, Hz
Max. fuse size (time delay)
Min. ampacity
Fan motor
Model
Compressor
Winding resistance (at 68˚F) ½
Refrigerant control
Defrost method
W
Dimensions
D
H
Weight
REMOTE CONTROLLER
Control voltage (by built-in transformer)
REFRIGERANT PIPING
Pipe size
Connection method
Between the indoor
& outdoor units
Notes ❈1 : Rating conditions (cooling) — Indoor : 80˚FDB, 67˚FWB, Outdoor : 95˚FDB, 75˚FWB
❈2 : Rating conditions (heating) — Indoor : 70˚FDB, 60˚FWB, Outdoor : 17˚FDB, 15˚FWB
❈3 : include auxiliary electric heater operation at 115V
Liquid
Gas
Indoor
Outdoor
Height difference
Piping length
(heating) — Indoor : 70˚FDB, 60˚FWB, Outdoor : 47˚FDB, 43˚FWB
Btu/h
Btu/h
Btu/h
W
W
F.L.A
A(kW)
CFM
CFM
Pints/h
dB(A)
in.
in.
in.
in.
lbs.
F.L.A
R.L.A
L.R.A
in.
in.
in.
lbs.
in.
in.
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]
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]
6.8/6.8
3.2/3.2
MSH12NN
3.4/3.3
MSH15NN
White
115, 1, 60
A
A
15
0.6
0.43
–
360-395-452
311-339-388
3.3
293-321-367
4.7
36-39-42
5/8
39-15/16
7-1/2
12-5/8
31
MUH12NN
MUH15NN
Munsell 5Y7/1
208/230, 1, 60
A
A
15
20
14
0.52
RH-185NHDT
RH-207NHDT
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
ft
ft
Max. 25
Max. 49
Operating Range
Indoor intake air temperature
Cooling
Heating
Maximum
Minimum
Maximum
Minimum
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
7
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
❈2 : Rating conditions (heating) — Indoor : 70˚FDB, 60˚FWB, Outdoor : 17˚FDB, 15˚FWB
(heating) — Indoor : 70˚FDB, 60˚FWB, Outdoor : 47˚FDB, 43˚FWB
Operating Range
8
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
MAX. HEIGHT DIFFERENCE
9
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 (x10
3
Btu/h), SHC : Sensible Heat Capacity (x10
3
Btu/h)
TPC : Total Power Consumption (kW)
2. SHC is based on 80˚F of indoor intake air DB temperature.
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 (x10
3
Btu/h), SHC : Sensible Heat Capacity (x10
3
Btu/h)
TPC : Total Power Consumption (kW)
2. Heating capacity correction factors.
DATA
MSH09NW, MSH12NN, MSH15NN, MSH17NN
1. PERFORMANCE DATA
1) COOLING CAPACITY
2) COOLING CAPACITY CORRECTIONS
3) HEATING CAPACITY
10
2. PERFORMANCE CURVE
71
67
63
71
67
63
65
70
75
75
70
65
Total power consumption (kW) Total capacity ( ✕10 Btu/h)
Outdoor intake air DB temperature (¡F)
Indoor intake air WB temperature (
¡F)
Indoor intake air WB temperature (
¡F)
Cooling capacity
SHF at rating condition = 0.7
= 279CFM
= 0.23
Airflow
Bypass Factor
12
10
8
6
1.2
65 75 85 95 105 115
0.8
0.6
Total power consumption (kW) Total capacity ( ✕10 Btu/h)
Outdoor intake air WB temperature (¡F)
Indoor intake air DB temperature (¡F)
Indoor intake air DB temperature (
¡F)
Heating capacity
= 328CFM
Airflow
12
14
10
8
6
1.1
1.0
15 25 35 45 55
0.8
0.6
0.7
0.9
NOTE : Apoint on the curve shows the reference point.
MSH09NW
MUH09NW
11
NOTE : Apoint on the curve shows the reference point.
71
67
63
71
67
63
16
14
10
12
2
1
Indoor intake air DB temperature (
¡
F)
Indoor intake air DB temperature (
¡
F)
65
70
75
65
70
75
20
16
8
12
1.6
0.6
Cooling capacity
SHF at rating condition = 0.71
= 388CFM
= 0.15
Airflow
Bypass Factor
65 75 85 95 105 115
Total power consumption (kW) Total capacity ( ✕10 Btu/h)
Outdoor intake air DB temperature (¡F)
Indoor intake air DB temperature (
¡
F)
Heating capacity
= 452CFM
Airflow
15 25 35 45 55
Total power consumption (kW) Total capacity ( ✕10 Btu/h)
Outdoor intake air WB temperature (¡F)
0.8
1.0
1.2
1.4
Indoor intake air DB temperature (
¡
F)
MSH12NN
MUH12NN
12
NOTE : Apoint on the curve shows the reference point.
71
67
63
71
67
63
65
70
75
75
70
65
Indoor intake air WB temperature (
¡
F)
Cooling capacity
SHF at rating condition = 0.65
= 367CFM
= 0.22
Airflow
Bypass Factor
65 75 85 95 105 115
Total power consumption (kW) Total capacity ( ✕10 Btu/h)
22
18
14
10
2
Outdoor intake air DB temperature (¡F)
Indoor intake air DB temperature (
¡
F)
Heating capacity
= 452CFM
Airflow
15 25 35 45 55
Total power consumption (kW) Total capacity ( ✕10 Btu/h)
20
16
8
1.4
0.8
Outdoor intake air WB temperature (¡F)
1
12
1.0
1.2
0.6
Indoor intake air DB temperature (
¡
F)
Indoor intake air WB temperature (
¡
F)
MSH15NN
MUH15NN
13
NOTE : Apoint on the curve shows the reference point.
71
67
63
71
67
63
65
70
75
75
70
65
Indoor intake air WB temperature (
¡
F)
Indoor intake air WB temperature (
¡
F)
Cooling capacity
SHF at rating condition = 0.64
= 413CFM
= 0.24
Airflow
Bypass Factor
65 75 85 95 105 115
Total power consumption (kW) Total capacity ( ✕10 Btu/h)
24
20
16
12
2
1
Outdoor intake air DB temperature (¡F)
Indoor intake air DB temperature (
¡
F)
Indoor intake air DB temperature (
¡
F)
Heating capacity
= 491CFM
Airflow
15 25 35 45 55
Total power consumption (kW) Total capacity ( ✕10 Btu/h)
20
16
12
8
2.0
1.0
Outdoor intake air WB temperature (¡F)
1.2
1.6
1.4
1.8
MSH17NN
MUH17NN
14
3. Condensing presure
86 F
80
75
70
(Psi.G)
300
280
260
240
220
200
180
160
140
68 70 75 80 85 90 95 100 104 F
Condensing pressure
Outdoor ambient temperature
Intdoor DB temperature (
¡F)
86 F
80
75
70
Intdoor DB temperature (
¡F)
(psi.G)
40
50
60
70
80
90
100
68 70 75 80 85 90 95 100 104 F
Suction pressure
Outdoor ambient temperature
75 F
70
65
(psi.G)
310
300
290
280
270
260
250
230
240
220
210
200
190
170
180
150
160
5 10 15 20 25 30 35 40 45 50 55 60 65 70 F
Condensing pressure
Outdoor ambient temperature
Intdoor DB temperature(¡F)
75 F
70
65
(psi.G)
80
70
60
50
40
30
20
10
5 10 15 20 25 30 35 40 45 50 55 60 65 70 F
Suction pressure
Outdoor ambient temperature
Intdoor DB temperature (
¡F)
MSH09NW(Cooling)
Data is bassed on the condition of indoor humidity 50%.
Air flow should be set at Hi.
A point on the curve shows the reference point.
MSH09NW(Heating)
Data is bassed on the condition of outdoor humidity 75%.
Air flow should be set at Hi.
A point on the curve shows the reference point.
15
MSH12NN(Cooling)
86 F
80
75
70
(Psi.G)
300
320
280
260
240
220
200
180
160
140
68 70 75 80 85 90 95 100 104( F)
Condensing pressure
Outdoor ambient temperature
Intdoor DB temperature (¡F)
86 F
80
75
70
Intdoor DB temperature (
¡F)
(psi.G)
40
50
60
70
80
90
100
68 70 75 80 85 90 95 100 104( F)
Suction pressure
Outdoor ambient temperature
75 F
70
65
(psi.G)
310
300
290
280
270
260
250
230
240
220
210
200
190
170
180
150
160
5 10 15 20 25 30 35 40 45 50 55 60 65 70( F)
Condensing pressure
Outdoor ambient temperature
Intdoor DB temperature(¡F)
75 F
70
65
(psi.G)
80
70
60
50
40
30
20
10
5 10 15 20 25 30 35 40 45 50 55 60 65 70( F)
Suction pressure
Outdoor ambient temperature
Intdoor DB temperature (
¡F)
Data is bassed on the condition of indoor humidity 50%.
Air flow should be set at Hi.
A point on the curve shows the reference point.
MSH12NN(Heating)
Data is bassed on the condition of outdoor humidity 75%.
Air flow should be set at Hi.
A point on the curve shows the reference point.
16
MSH15NN(Cooling)
86 F
80
75
70
(Psi.G)
300
320
280
260
240
220
200
180
160
140
68 70 75 80 85 90 95 100 104( F)
Condensing pressure
Outdoor ambient temperature
Intdoor DB temperature (¡F)
86 F
80
75
70
Intdoor DB temperature (
¡F)
(psi.G)
40
50
60
70
80
90
100
68 70 75 80 85 90 95 100 104( F)
Suction pressure
Outdoor ambient temperature
75 F
70
65
(psi.G)
290
280
270
260
250
230
240
220
210
200
190
170
180
150
160
5 10 15 20 25 30 35 40 45 50 55 60 65 70( F)
Condensing pressure
Outdoor ambient temperature
Intdoor DB temperature(¡F)
75 F
70
65
(psi.G)
80
70
60
50
40
30
20
10
5 10 15 20 25 30 35 40 45 50 55 60 65 70( F)
Section pressure
Outdoor ambient temperature
Intdoor DB temperature (¡F)
Data is bassed on the condition of indoor humidity 50%.
Air flow should be set at Hi.
A point on the curve shows the reference point.
MSH15NN(Heating)
Data is bassed on the condition of outdoor humidity 75%.
Air flow should be set at Hi.
A point on the curve shows the reference point.
17
MSH17NN(Cooling)
86 F
80
75
70
(Psi.G)
300
320
280
260
240
220
200
180
160
140
68 70 75 80 85 90 95 100 104( F)
Condensing pressure
Outdoor ambient temperature
Intdoor DB temperature (¡F)
86 F
80
75
70
Intdoor DB temperature (
¡F)
(psi.G)
40
50
60
70
80
90
100
68 70 75 80 85 90 95 100 104( F)
Suction pressure
Outdoor ambient temperature
75 F
70
65
(psi.G)
290
280
270
260
250
230
240
220
210
200
190
170
180
150
160
5 10 15 20 25 30 35 40 45 50 55 60 65 70( F)
Condensing pressure
Outdoor ambient temperature
Intdoor DB temperature(¡F)
75 F
70
65
(psi.G)
80
70
60
50
40
30
20
10
5 10 15 20 25 30 35 40 45 50 55 60 65 70( F)
Section pressure
Outdoor ambient temperature
Intdoor DB temperature (¡F)
Data is bassed on the condition of indoor humidity 50%.
Air flow should be set at Hi.
A point on the curve shows the reference point.
MSH17NN(Heating)
Data is bassed on the condition of outdoor humidity 75%.
Air flow should be set at Hi.
A point on the curve shows the reference point.
18
4. STANDARD OPERATION
Model
Item
Capacity
Total
Electrical
circuit
Refrigerant
circuit
Indoor
unit
Outdoor
unit
SHF
Input
Indoor unit
Power supply (V, phase, Hz)
Input
Fan current
Aux. heater current
Outdoor unit
Power supply (V, phase, Hz)
Input
Comp. current
Fan current
Condensing pressure
Suction pressure
Discharge temperature
Condensing temperature
Suction temperature
Comp. shell bottom temp
Ref. pipe length
Refrigerant charge
Intake air temperature
Discharge air temperature
Fan speed
Airflow (Hi)
Intake air temperature
Fan speed
Airflow
DB
WB
DB
WB
DB
WB
Unit
Btu / h
—
kW
kW
A
A
kW
A
A
psi.G
psi.G
˚F
˚F
˚F
˚F
ft
—
˚F
˚F
˚F
˚F
rpm
CFM
˚F
˚F
rpm
CFM
Cooling
8,800
0.70
237
73
162
110
47
147
80
67
59
57
1,230
279
95
–
MSH09NW
Heating
10,500
–
0.89
MSH09NW
115,1,60
0.035
0.34
–
MUH09NW
115, 1, 60
0.855
6.8
0.7
233
60
160
108
37
142
25
2 lbs 5 oz
70
60
104
–
1,430
328
47
43
850
1,059
POWER SUPPLY
MSH09NW
INDOOR UNIT
OUTDOOR UNIT
115V 60Hz, 1[
SIGNAL WIRE
2 wire 12V DC
Field installed
115V 60Hz, 1[
✻ Control voltage
MSH09NW / MUH09NW
Power supply voltage to serial signal circuit is
12V DC.
Between
11
and 33on in-out terminal block will
be 12V DC peak voltage.
19
Cooling
12,600/12,900
0.71
1.28/1.31
1.233/1.263
5.61/5.11
246
82
167
114
51
156
80
67
57
56
388
95
–
Capacity
SHF
Input
Indoor unit
Power supply (V, phase, Hz)
Input
Fan current
Aux. heater current
Outdoor unit
Power supply (V, phase, Hz)
Input
Comp. current
Fan current
Condensing pressure
Suction pressure
Discharge temperature
Condensing temperature
Suction temperature
Comp. shell bottom temp
Ref. pipe length
Refrigerant charge
Intake air temperature
Discharge air temperature
Fan speed
Airflow (Hi)
Intake air temperature
Fan speed
Airflow
Unit
Btu / h
—
kW
kW
A
A
kW
A
A
psi.G
psi.G
˚F
˚F
˚F
˚F
ft
—
˚F
˚F
˚F
˚F
rpm
CFM
˚F
˚F
rpm
CFM
Cooling
14,300/14,600
0.65
1.35/1.38
1.303/1.333
5.91/5.41
246
80
146
112
58
161
80
67
55
54
367
95
–
Heating
14,500/14,800
–
1.25/1.30
1.203/1.253
5.41/5.11
230
57
158
108
33
143
70
60
107
–
452
47
43
Heating
13,000/13,500
–
1.18/1.25
1.133/1.203
5.11/4.91
220
58
159
106
31
146
70
60
104
–
452
47
43
DB
WB
DB
WB
DB
WB
Item
Model
Total
Electrical
circuit
Refrigerant
circuit
Indoor
unit
Outdoor
unit
MSH12NN
MSH12NN
115, 1, 60
0.047
0.41
–
MUH12NN
208/230, 1, 60
0.49
25
3bs 1oz
1,200
830/900
1,288/1,394
MSH15NN
MSH15NN
115, 1, 60
0.047
0.41
–
MUH15NN
208/230, 1, 60
0.49
25
3bs 1oz
1,200
830/900
1,288/1,394
MSH12NN / MSH15NN
INDOOR UNIT
OUTDOOR UNIT
115V 60Hz, 1[
Field installed
208/230V 60Hz, 1[
SIGNAL WIRE
2 wire 12V DC
POWER SUPPLY
20
✻ Control voltage
MSH12NN / MUH12NN
MSH15NN / MUH15NN
Power supply voltage to serial signal circuit is
12V DC.
Between 11and 33on in-out terminal block will
be 12V DC pesk voltage.
Total
MSH17NN
INDOOR UNIT
OUTDOOR UNIT
115V 60Hz, 1[
Field installed
208/230V 60Hz,
SIGNAL WIRE
2 wire 12V DC
Electrical
circuit
Refrigerant
circuit
Indoor
unit
Outdoor
unit
Model
Item
Capacity
SHF
Input
Indoor unit
Power supply (V, phase, Hz)
Input
Fan current
Aux. heater current
Outdoor unit
Power supply (V, phase, Hz)
Input
Comp. current
Fan current
Condensing pressure
Suction pressure
Discharge temperature
Condensing temperature
Suction temperature
Comp. shell bottom temp
Ref. pipe length
Refrigerant charge
Intake air temperature
Discharge air temperature
Fan speed
Airflow (Hi)
Intake air temperature
Fan speed
Airflow
DB
WB
DB
WB
DB
WB
Unit
Btu / h
—
kW
kW
A
A
kW
A
A
psi.G
psi.G
˚F
˚F
˚F
˚F
ft
—
˚F
˚F
˚F
˚F
rpm
CFM
˚F
˚F
rpm
CFM
Cooling
16,000/16,200
0.64
1.56/1.58
1,506/1,526
6.69/6.19
243
77
165
113
48
150
80
67
56
54
413
95
–
MSH17NN
MSH17NN
115,1,60
0.054
0.47
–
MUH17NN
208/230, 1, 60
0.61
25
4 lbs 14 oz
1,290
740/800
1,606/1,730
Heating
16,800/17,200
–
1.50/1.57
1,446/1,516
6.39/6.09
242
63
162
112
35
144
70
60
109
–
491
47
43
POWER SUPPLY
✻ Control voltage
MSH17NN / MUH17NN
Power supply voltage to serial signal circuit is
12V DC.
Between 11and 33on in-out terminal block will
be 12V DC pesk voltage.
21
5. OPERATING RANGE
MUH09NW
MUH12NN
MUH15NN
MUH17NN
Indoor unit
Outdoor unit
Rating
115V 60Hz 1[
208/230V 60Hz 1[
Guaranteed Voltage
Min. 103V — Max. 127V
Min. 198V — Max. 253V
MSH09NW
MSH12NN
MSH15NN
MSH17NN
Models
Model
MSH09NW
MSH12NN
MSH15NN
MSH17NN
Function
Dry
Wet
Dry
Wet
Dry
Wet
Dry
Wet
328
279
452
388
452
367
491
413
19.0
16.1
18.2
15.6
18.2
14.8
19.7
16.6
25.6
21.8
29.2
25.2
29.2
23.9
31.7
26.8
Air flow
(CFM)
Air speed
(ft/sec.)
Coverage
range (ft)
MSH09NW
MUH09NW
MSH12NN
MUH12NN
MSH15NN
MUH15NN
MSH17NN
MUH17NN
Outdoor unit
precharged
(up to 25ft)
2 lbs 5 oz
3 lbs 1 oz
3 lbs 3 oz
4 lbs 14 oz
25ft
0
30ft
3
35ft
5
Refrigerant piping length (one way)
40ft
8
45ft
11
49ft
13
Model
Function
Cooling
Heating
Standard temperature
Maximum temperature
Minimum temperature
Standard temperature
Maximum temperature
Minimum temperature
DB (˚F)
80
95
67
70
80
70
WB (˚F)
67
71
57
60
–
60
Indoor
DB (˚F)
95
115
67
47
75
17
WB (˚F)
—
—
—
43
65
15
Outdoor
Condition
Intake air
temperature
(1) POWER SUPPLY
(2) OPERATION
6. OUTLET AIR SPEED AND COVERAGE RANGE
7. ADDITIONAL REFRIGERANT CHARGE (R-22(oz))
22
● The air coverage range is the value up to the position
where the air speed is 1 ft/sec, when air is blown out
horizontally from the unit properly at the High speed
position.
The coverage range should be used only as a general guideline since it varies according to the size of
the room and furniture installed inside the room.
6
OUTLINES AND DIMENSIONS
MSH09NW
INDOOR UNIT
10-13/16
2-3/8
2-3/16
30-13/16
32-1/16
24-5/8
11/16
5-1/8
3-5/16
3-5/16
7-3/8
1-5/8
1/4
3-15/16
8-7/8
12-11/16
7-3/16
3-9/16
8-7/8
12-3/8
3/16
2-13/16
5-1/4
3-11/16
1/4-19-11/16
3/8-16-15/16
1-3/8 O.D.
3/4 I.D
7-3/16
1/8
5/8
1-1/8
Unit: inch
8-11/16
10-3/8 3/8
1-13/16
2-9/16
6-5/16
MUH09NW
OUTDOOR UNIT
7/8
10-1/16
21-1/4
11-1/4
12-5/8
10-5/16
3/8
12-5/8
11/16
4-13/16
9-13/16
3-9/16
1-11/16
19-5/8
30-11/16
4-3/8 ✕ 13/16
12-5/16
1-15/16
1-1/16
16-11/16
3/4
2-13/16
1-1/4
12-5/8
11-1/4
9/16 9/16
(5/16 ✕ 7/8)
2-3/8
13-1/2
2-9/16
3-9/16
2-9/16
20 in
5/8
7/16
4
4-3/16
4 in.
16
16 in.
1/4
3/8
4 in.
4 in.
14 in.
23
MSH12NN, MSH15NN, MSH17NN
INDOOR UNIT
5-15/16
7/16 ✕ 13/16
25-1/2
Unit: inch
8-9/16
2-3/8
1-9/16
17-11/16
17-11/16
17-1/4
12-5/8
1-15/16
2-3/16
6-5/16
MUH12NN, MUH15NN
OUTDOOR UNIT
39-15/16
30-1/2
13-7/8
11/16
7-1/2
11-3/16
10-13/16
13/161/8
11-11/16
2-15/16
7-1/2
installation plate
3/16
5/16-19-11/16
1/2-16-15/16
1-15/16 O.D.
1-1/8 O.D.
5/8
1-1/8
1-3/8
9-3/4
23-13/16
11-1/2
13/16
13-12/16
5/8
7-3/16
19-11/16
33-7/16
13/16
1-15/16
11-7/16
1-3/16
6-3/16
2-15/16
12-3/16
3-15/16
13-9/16
6-5/16
4 in.
20 in.
1/4
5/8
4 in.
4 in.
14 in.
24
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