Mitsubishi Mr.Slim MS09NW User manual

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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3
1FEATURES
Models Cooling capacity SEER
MS09NW 8,500Btu/h 10.2
MS12NN 12,300/12,600Btu/h 11.3/11.3
MS15NN 14,300/14,600Btu/h 10.5/10.5
MS17NN 15,900/16,100Btu/h 10.2/10.2
MS12NN, MS15NN, MS17NN MU12NN, MU15NN, MU17NN
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 redesigned and easier
to handle than 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, MS09NW is 1013/16 o321/16 o73/16 (HoWoD),
which used to be 143/16 o311/8 o53/8.
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.
SWING
1013/16
MS09NW
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4
2
PART NAMES AND FUNCTIONS
3
MS09NW, MS12NN, MS15NN, MS17NN
REMOTE CONTROLLER
MS09EW ➔ MS09NW
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.
(Outline dimension changes. 29-15/16”o9-1/16”o21-1/4”(WoDoH)➔30-11/16”o10-1/16”o21-1/4”(WoDoH))
(Capillary tube, refrigerant and pipe had changed.)
3. Remote controller has changed. (The timer function was changed to the clock timer function.)
4. Indoor auto vane has been adopted.
MS12EN, MS15EN ➔ MS12NN, MS15NN
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.
MS17NN
1. New Model
TECHNICAL CHANGES
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5
INDOOR UNIT
MS09NW
Operation section
MS12NN
Emergency operation switch
Emergency operation switch
OUTDOOR UNIT
MU12NN
MU15NN
MU17NN
MU09NW
(When the front panel is opened)
MS09NW MS09NW
MS12NN, MS15NN, MS17NN MS12NN, MS15NN, MS17NN
MS12NN
MS15NN
MS17NN
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6
4
Notes w1 : Rating conditions (cooling) — Indoor : 80˚FDB, 67˚FWB, Outdoor : 95˚FDB, 75˚FWB
Operating Range
ITEM MODELS MS09NW MS12NN
Cooling capacity
Power consumption
EER [SEER]
INDOOR UNIT MODEL
External finish
Power supply
Max. fuse size (time delay)
Min. ampacity
Fan motor
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
Sound level
Dimensions
Weight
REMOTE CONTROLLER
Control voltage (by built-in transformer)
REFRIGERANT PIPING
Pipe size
Connection method
Between the indoor
& outdoor units
w1
w1
w1
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
W
V, phase, Hz
A
A
F.L.A
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
dB(A)
in.
in.
in.
lbs
in.
in.
ft
ft
8,500
840
10.1 (10.2)
MS09NW
0.5
0.37
208-265-328
177-226-279
2.3
31-37-42
32-1/16
7-3/16
10-13/16
18
MU09NW
115, 1, 60
14
0.66
KH122WES
C-R 0.98 C-S 2.21
10
37
46
30-11/16
10-1/16
21-1/4
64
3/8
White
115, 1, 60
15
5/8
Munsell 5Y6.5/1
15
Capillary tube
Wireless type
12V DC
Not supplied (optional parts)
1/4
Flared
Flared
Max. 25
Max. 49
12,300/12,600
1,100/1,130
11.2/11.2 (11.3/11.3)
MS12NN
0.6
0.43
360-395-452
314-342-392
3.2
36-39-42
39-15/16
7-1/2
12-5/8
31
MU12NN
208/230, 1, 60
12
0.52
RH167NHDT
C-R 2.16 C-S 3.11
9
29
52
33-7/16
11/7/16
23-13/16
92
5/8
Cooling Maximum
Minimum
Indoor intake air temperature
95˚FDB, 71˚FWB
67˚FDB, 57˚FWB
Outdoor intake air temperature
115˚FDB
67˚FDB
SPECIFICATIONS
When MS09NW indoor unit is operating with MUM18NW and MUM30NN outdoor unit connected.
(Please refer to the manual No.OB202 for MUM18NW and MUM30NN.)
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Notes w1 : Rating conditions (cooling) — Indoor : 80˚FDB, 67˚FWB, Outdoor : 95˚FDB, 75˚FWB
Operating Range
ITEM MODELS MS15NN MS17NN
Cooling capacity 
Power consumption 
EER [SEER]
INDOOR UNIT MODEL
External finish
Power supply
Max. fuse size (time delay)
Min. ampacity
Fan motor
Airflow Lo—Me—Hi
Moisture removal
Sound level Lo-Me-Hi
Cond. drain connection O.D.
Dimensions
Weight
OUTDOOR UNIT
External finish
Power supply
Max. fuse size (time delay)
Min. ampacity
Fan motor
Compressor
Refrigerant control
Sound level
Dimensions
Weight
REMOTE CONTROLLER
Control voltage (by built-in transformer)
REFRIGERANT PIPING
Pipe size
Connection method
Between the indoor
& outdoor units
w1
w1
w1
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
W
V, phase, Hz
A
A
F.L.A
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
dB(A)
in.
in.
in.
lbs
in.
in.
ft
ft
14,300/14,600
1,370/1,400
10.4/10.4 (10.5/10.5)
MS15NN
0.6
0.43
360-395-452
293-321-367
4.7
36-39-42
MU15NN
14
RH207NHDT
C-R 1.68 C-S 2.78
10
35
52
92
White
115, 1, 60
15
5/8
39-15/16
7-1/2
12-5/8
31
Munsell 5Y6.5/1
208/230, 1, 60
20
0.52
Capillary tube
33-7/16
11-7/16
23-13/16
Wireless type
12V DC
Not supplied (optional parts)
1/4
5/8
Flared
Flared
Max. 25
Max. 49
15,900/16,100
1,570/1,600
10.1/10.1 (10.2/10.2)
MS17NN
0.7
0.51
406-441-491
346-374-417
5.1
40-43-45
MU17NN
15
RH231NHDT
C-R 1.65 C-S 2.67
11
38
52
97
Cooling Maximum
Minimum
Indoor intake air temperature
95˚FDB, 71˚FWB
67˚FDB, 57˚FWB
Outdoor intake air temperature
115˚FDB
67˚FDB
When MS15NN indoor unit is operating with MUM30NN outdoor unit connected.
(Please refer to the manual No.OB202 for MUM30NN.)
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8
25
MAX. HEIGHT DIFFERENCE
Models
MS09NW
MS12NN
MS15NN
MS17NN
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
Models
Indoor air Outdoor intake air DB temperature(˚F)
MS09NW
71
67
63
71
67
63
71
67
63
71
67
63
TC
10.4
9.9
9.3
15.4
14.6
13.7
17.9
16.9
15.9
19.7
18.7
17.5
SHC
5.9
6.9
7.7
11.6
10.4
8.9
9.2
11.0
12.5
10.2
12.1
13.7
TPC
0.75
0.71
0.67
1.01
0.95
0.90
1.25
1.18
1.12
1.42
1.34
1.28
TC
9.7
9.2
8.6
14.4
13.6
12.7
16.7
15.8
14.7
18.4
17.4
16.3
SHC
5.5
6.4
7.2
8.3
9.7
10.7
8.6
10.2
11.6
9.5
11.3
12.7
TPC
0.82
0.78
0.74
1.10
1.05
1.00
1.37
1.30
1.24
1.56
1.48
1.42
TC
9.1
8.5
8.0
13.5
12.6
11.8
15.7
14.6
13.7
17.3
16.1
15.1
SHC
5.2
6.0
6.7
7.8
8.9
10.0
8.1
9.5
10.8
8.9
10.5
11.9
TPC
0.88
0.84
0.80
1.19
1.13
1.08
1.47
1.40
1.34
1.68
1.60
1.53
TC
8.5
7.9
7.3
12.6
11.7
10.8
14.6
13.6
12.5
16.1
15.0
13.8
SHC
4.8
5.5
6.1
7.3
8.3
9.1
7.5
8.8
9.8
8.3
9.7
10.8
TPC
0.93
0.89
0.86
1.25
1.20
1.15
1.55
1.48
1.43
1.77
1.70
1.63
TC
7.8
7.3
6.6
11.6
10.8
9.8
13.4
12.5
11.4
14.8
13.8
12.6
SHC
4.4
5.1
5.5
6.7
7.6
8.3
6.9
8.1
8.9
7.7
8.9
9.8
TPC
0.97
0.93
0.89
1.30
1.25
1.20
1.61
1.55
1.48
1.84
1.78
1.70
IWB
(˚F)75 85 95 105 115
MS12NN
MS15NN
MS17NN
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.
Models Refrigerant piping length (one way)
MS09NW
MS12NN
MS15NN
MS17NN
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
1. PERFORMANCE DATA
1) COOLING CAPACITY
2) COOLING CAPACITY CORRECTIONS
MS09NW, MS12NN, MS15NN, MS17NN
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2. PERFORMANCE CURVE
NOTE : A point on the curve shows the reference point.
MS09NW MS12NN
MU09NW MU12NN
MS15NN MS17NN
MU15NN MU17NN
71
67
63
71
67
63
71
67
63
71
67
63
Total power consumption (kW) Total capacity ( o10 Bw/h)
Outdoor intake air DB temperature (¡F) Outdoor intake air DB temperature (¡F)
Indoor intake air WB temperature (¡F)
Indoor intake air WB temperature (¡F)
Indoor intake air WB temperature (¡F)
Indoor intake air WB temperature (¡F)
Cooling capacity
SHF at rating condition = 0.7
= 279CFM
= 0.26
Airflow
Bypass Factor
Cooling capacity
SHF at rating condition = 0.71
= 392CFM
= 0.17
Airflow
Bypass Factor
12
10
8
6
1.2
65 75 85 95 105 115 67 75 85 95 105 115
0.8
0.6
Total power consumption (kW) Total capacity ( o10 Bw/h)
16
14
12
10
8
2
1
71
67
63
71
67
63
71
67
63
71
67
63
Indoor intake air WB temperature (¡F)
Indoor intake air WB temperature (¡F)
Cooling capacity
SHF at rating condition = 0.7
= 367CFM
= 0.22
Airflow
Bypass Factor
67 75 85 95 105 115
Total power consumption (kW) Total capacity ( o10 Bw/h)
18
16
14
12
2
1
Outdoor intake air DB temperature (¡F)
Indoor intake air WB temperature (¡F)
Indoor intake air WB temperature (¡F)
Cooling capacity
SHF at rating condition = 0.65
= 417CFM
= 0.24
Airflow
Bypass Factor
67 75 85 95 105 115
Total power consumption (kW) Total capacity ( o10 Bw/h)
20
18
16
14
2
1
Outdoor intake air DB temperature (¡F)
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3. CONDENSING PRESSURE AND SUCTION PRESSURE
Data is based on the condition of indoor humidity 50%. Air flow should be set at Hi. A point on the curve shows
the reference point
MU09NW
MU09NW
86 F
80
75
70
86 F
80
75
70
300
(PSIG)
280
260
240
220
200
180
17068 70 75 80 85 90 95 100 104 F
Condensing pressure
Outdoor ambient temperature
Indoor DB temperature
Indoor DB temperature
(PSIG)
40
50
60
70
80
90
68 70 75 80 85 90 95 100 104 F
Suction pressure
Outdoor ambient temperature
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12
Data is based on the condition of indoor humidity 50%. Air flow should be set at Hi. A point on the curve shows
the reference point
MU12NN
MU12NN
86 F
80
75
70
86 F
80
75
70
300
(PSIG)
280
260
240
220
200
180
16068 70 75 80 85 90 95 100 104 F
Condensing pressure
Outdoor ambient temperature
Indoor DB temperature
Indoor DB temperature
(PSIG)
40
50
60
70
80
90
68 70 75 80 85 90 95 100 104 F
Suction pressure
Outdoor ambient temperature
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13
86 F
80
75
70
86 F
80
75
70
300
320
(PSIG)
280
260
240
220
200
180
16068 70 75 80 85 90 95 100 104 F
Condensing pressure
Outdoor ambient temperature
Indoor DB temperature
Indoor DB temperature
(PSIG)
40
50
60
70
80
90
68 70 75 80 85 90 95 100 104 F
Suction pressure
Outdoor ambient temperature
Data is based on the condition of indoor humidity 50%. Air flow should be set at Hi. A point on the curve shows
the reference point
MU15NN
MU15NN
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14
300
320
(PSIG)
280
260
240
220
200
180
16068 70 75 80 85 90 95 100 104 F
Condensing pressure
Outdoor ambient temperature
Indoor DB temperature
Indoor DB temperature
(PSIG)
40
50
60
70
80
90
68
(20) 70 75 80 85 90 95 100 104 F
Suction pressure
Outdoor ambient temperature
86 F
80
75
70
86 F
80
75
70
Data is based on the condition of indoor humidity 50%. Air flow should be set at Hi. A point on the curve shows
the reference point
MU17NN
MU17NN
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15
MS09NW
INDOOR UNIT
OUTDOOR UNIT
115V 60Hz, 1[
Field installed
115V 60Hz, 1[
SIGNAL WIRE
2 wire 12V DC
MS12/15/17NN
INDOOR UNIT
OUTDOOR UNIT
115V 60Hz, 1[
Field installed
208/230V 60Hz, 1[
SIGNAL WIRE
2 wire 12V DC
4. STANDARD OPERATION DATA
MS09NW
Cooling
8,500
0.7
0.84
MS09NW
115, 1, 60
0.035
0.34
MU09NW
115, 1, 60
0.805
6.49
0.66
259
80
161
117
49
137
25
2 lbs 2oz
80
67
60
57
1,230
279
95
—
780
1,024
Capacity
SHF
Input
INDOOR UNIT MODEL
Power supply (V, phase, Hz)
Input
Fan current
OUTDOOR UNIT MODEL
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 High / Low
Airflow
Unit
Btu / h
—
kW
kW
A
kW
A
A
psi-G
psi-G
˚F
˚F
˚F
˚F
ft
—
˚F
˚F
˚F
˚F
rpm
CFM
˚F
˚F
rpm
CFM
MS15NN
Cooling
14,300/14,600
0.65
1.37/1.40
MS15NN
115, 1, 60
0.047
0.41
MU15NN
208/230, 1, 60
1.323/1.353
6.01/5.51
0.49
256
77
166
116
48
154
25
2 lbs 14 oz
80
67
55
54
1,200
367
95
—
830/900
1,324/1,430
MS17NN
Cooling
15,900/16,100
0.65
1.57/1.60
MS17NN
115, 1, 60
0.054
0.47
MU17NN
208/230, 1, 60
1.516/1.546
7.01/6.41
0.49
252
77
174
114
46
160
25
lbs oz
80
67
56
54
1,290
417
95
—
830/900
1,288/1,394
MS12NN
Cooling
12,300/12,600
0.71
1.10/1.13
MS12NN
115, 1, 60
0.047
0.41
MU12NN
208/230, 1, 60
1.053/1.083
4.71/4.31
0.49
243
78
157
112
48
140
25
2 lbs 14 oz
80
67
58
56
1,200
392
95
—
830/900
1,324/1,430
DB
WB
DB
WB
DB
WB
Item
Model
Total
Electrical
circuit
Refrigerant
circuit
Indoor
unit
Outdoor
unit
POWER SUPPLY
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5. OPERATING RANGE
(1) POWER SUPPLY
Models
MS09NW
MS12NN
MS15NN
MS17NN
MU09NW
MU12NN
MU15NN
MU17NN
Indoor unit
Outdoor unit
Rating
115V 60Hz 1[
208/230V 60Hz 1[

Guaranteed Voltage
Min. 103V — Max. 127V
Min. 198V 208V 230V Max. 253V
6. OUTLET AIR SPEED AND COVERAGE RANGE
Model
MS09NW
MS12NN
MS15NN
MS17NN
Function
Dry
Wet
Dry
Wet
Dry
Wet
Dry
Wet
328
279
452
392
452
367
491
417
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
25.6
21.8
29.2
25.5
29.2
23.9
31.7
27.0
Air flow
(CFM) Air speed (ft/sec.) Coverage range (ft)
7. ADDITIONAL REFRIGERANT CHARGE (R-22(oz))
Model
MS09NW
MU09NW
MS12NN
MU12NN
MS15NN
MU15NN
MS17NN
MU17NN
Outdoor unit
precharged
(up to 25ft)
2 lbs 2 oz
2 lbs 14 oz
2 lbs 14 oz
25ft
0
30ft
1
33ft
1
Refrigerant piping length (one way)
40ft
2
45ft
2
49ft
3
3lbs
(2) OPERATION
Function
Cooling
Standard temperature
Maximum temperature
Minimum temperature
Maximum humidity
DB (˚F)
80
95
67
WB (˚F)
67
71
57
Indoor
78%
DB (˚F)
95
115
67
WB (˚F)
—
—
—
Outdoor
—
Condition
Intake air
temperature
●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 gen-
eral guideline since it varies according to the size of
the room and furniture arranged in the room.
OB192--1.qxp 23/6/97 11:45 PM Page 16

17
6
MS09NW
MU09NW
INDOOR UNIT
OUTDOOR UNIT
30-13/16
32-1/16
10-13/16
2-3/8
2-3/16
6-5/16
11/16
24-5/8 5-1/8
3-5/16 8-7/8 8-7/8 5-1/4
1-5/8
7-3/8
3-5/16 12-11/16 12-3/8
3-11/16
1/8
1-13/16
7-3/16
8-11/16
10-3/8 3/8
2-9/16
1/4-19-11/16
5/8
1-1/8
3-15/16
1/4
3-9/16
2-13/16
3/16
7-3/16
3/8-16-15/16
1-3/8 O.D.
3/4 I.D
7/8
12-5/8 12-5/16
11/16 3-9/16
4-3/16
7/16
(5/16 o7/8)
2-3/8
1/4
4
3/8
16-11/16
4-13/16
1-1/16
2-9/16
13-1/2
3-9/16
10-5/16
9-13/16
19-5/8
30-11/16 2-9/16
10-1/16
21-1/4
11-1/4
12-5/8
3/8
1-11/16 2-13/16
3/4
1-15/16 5/8
4-3/8 o13/16
1-1/4
9/16 9/16
11-1/4
12-5/8
4 in.
4 in.
14 in.
16 in.
4 in.
16
20 in
OUTLINES AND DIMENSIONS
Unit : inch
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18
MS12NN, MS15NN, MS17NN
MU12NN, MU15NN, MU17NN
INDOOR UNIT
OUTDOOR UNIT
2-3/8
1-9/16
5-15/16 7/16 o13/16
25-1/2 8-9/16
11-3/16 10-13/16 11-11/16 13/161/8
17-11/16
17-11/16
17-1/4 13-7/8
39-15/16 2-15/16
12-5/8
1-15/16
2-3/16
30-1/2 7-1/2
6-5/16
11/16
7-1/2 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
9-3/4
1-3/8
5/8
13-12/16 13/16
1-15/16
11-7/16 12-3/16 13-9/16
1-3/16
6-3/16
3-15/16
6-5/16
1/4
5/8
7-3/16
13/16
19-11/16
33-7/16 2-15/16
23-13/16
11-1/2
4 in.
4 in.
4 in.
14 in.
20 in.
Unit : inch
OB192--1.qxp 23/6/97 11:46 PM Page 18

19
7
MS09NW
MU09NW
MODEL WIRING DIAGRAM
MODEL WIRING DIAGRAM
INDOOR UNIT
OUTDOOR UNIT
GROUND
VLT
2
1
TB
N
L1
BLK
YLW
RED
POWER
SUPPLY
115V
1 phase
60Hz TAB12
AUTO RESTART
ASSY
TO OUTDOOR
UNIT
CONNECTING
WIRES
DC12V
NR11
TRANS
HIC1
MV
POWER MONITOR,
RECEIVER
P.C.BOARD
REMOTE
CONTROLLER
MF
RT11
RT12
SR11
F11 C11
ELECTRONIC CONTROL P.C BOARD
3
2
2
1
1
5
4
3
2
6
1
3
2
1
5
LD101 104
CN
CN202
5
3
5
151
CN
CN201
CN211
111
CN
CN
112
121
CN
RED
WHT
BRN
YLW
GRY
BLK
w
w
w
POWER SUPPLY
115V
1 phase 60Hz
FROM INDOOR UNIT
CONNECTING WIRES
DC12V
GROUND
L1
TB
NO
52C 51C
C1
C2
C
SR
COM
RED
RED
RED
WHT WHT
1
1
2
3
2
WHT
WHT WHT
NBLK
BLK
RED
WHT
BLK
BLK1 VLT 1
2YLW 2 52C
MC
MF
ww
ww
w
w w w
NOTE:1. For the outdoor electric wiring, refer to the outdoor unit electric wiring diagram .
2. Use copper conductors only.(For field wiring)
3. Symbols below indicate.
: Terminal block, : Connector
NOTE:1. Use copper conductors only.(For field wiring)
2. “w”show the terminals with a lock mechanism, so they can not be removed when you pull
the lead wire.
Be sure to pull the wire by pushing the locking lever(projected part) of the terminal with a finger.
3. Symbols below indicate.
: Terminal block, : Connector
1.Slide the sleeve.
2.Pull the wire while
pushing the locking
lever.
SYMBOL NAME SYMBOL NAME SYMBOL NAME
C11 INDOOR FAN CAPACITOR NR11 VARISTOR TB TERMINAL BLOCK
HIC1 DC/DC CONVERTER RT11
ROOM TEMPERATURE THERMISTOR MV VANE MOTOR
F11 FUSE(3.0A) RT12
INDOOR COIL THERMISTOR SR11 SOLID STATE RELAY
MF INDOOR FAN MOTOR
SYMBOL NAME SYMBOL NAME SYMBOL NAME
C1
COMPRESSOR CAPACITOR MF OUTDOOR FAN MOTOR TB1 TERMINAL BLOCK
C2
OUTDOOR FAN CAPACITOR MC COMPRESSOR (INNER THERMOSTAT)
51C OVERCURRENT RELAY 52C COMPRESSOR CONTACTOR
WIRING DIAGRAM
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20
MS12NN, MS15NN, MS17NN MODELS WIRING DIAGRAM
MU12NN, MU15NN, MU17NN MODELS WIRING DIAGRAM
INDOOR UNIT
OUTDOOR UNIT
DSAR
GRN/YLW
TO OUTDOOR
UNIT
CONNECTING
WIRES
DC12V
POWER
SUPPLY
115V
1 phase
60Hz
2TB
RT12
RT11
C11
CN
112
CN
104
CN
102
CN
101 CN 151
CN
111
SR144
LDCOM
LDFH
LDFL
LDFM
LDC11
LDC12
SR142
SR143
1
12
1
2
3
4
5
6
7
8
2
3
MV
CN201
CN202
AUTO RESTART
ASSY
DISPLAY
P.C. BOARD
HIC1
NR11
MF
TAB12 F11
TRANS
YLW
WHT
ORN
RED
BLK
YLW
BLU
WHT
ORN
RED
BLK
YLW
BLU
BRN
GRN/YLW
NBLK
L1
GROUND
RED
BRN
1
3 3 5 5
VLT
RECEIVER
P.C. BOARD
REMOTE
CONTROLLER
w
w
w
4321
POWER SUPPLY
208/230V
1phase 60Hz
GROUNDL1
TB
L2
WHT
COMNO
BLU
52C
RED
BLK
C
R
S
C2
C1
WHT
WHTWHT
BLK
BLU
RED
RED
ORN ORN
MC
MF
FROM INDOOR UNIT
CONNECTING WIRES
DC12V
1VLT
2YLW 52C
RED www
w
w
w
w
h
NOTE:1. For the outdoor electric wiring refer to the outdoor unit electric wiring diagram for servicing.
2. Use copper conductors only.(For field wiring)
3. Symbols below indicate.
: Terminal block, : Connector
NOTE:1. Use copper conductors only.(For field wiring)
2. “w”show the terminals with a lock mechanism, so they cannot be removed when you pull
the lead wire.
Be sure to pull the wire by pushing the locking lever(projected part) of the terminal with a finger.
3. Symbols below indicate.
: Terminal block, : Connector
1.Slide the sleeve.
2.Pull the wire while
pushing the locking
lever.
SYMBOL NAME SYMBOL NAME SYMBOL NAME
C11 INDOOR FAN CAPACITOR NR11 VARISTOR TB TERMINAL BLOCK
HIC1 DC/DC CONVERTER RT11
ROOM TEMPERATURE THERMISTOR MV VANE MOTOR
F11 FUSE(3.0A) RT12
INDOOR COIL THERMISTOR DSAR SURGE ABSORBER
MF INDOOR FAN MOTOR
SR142~SR144 SOLID STATE RELAY
SYMBOL NAME SYMBOL NAME SYMBOL NAME
C1
COMPRESSOR CAPACITOR MF OUTDOOR FAN MOTOR(INNER THERMOSTAT) TB TERMINAL BLOCK
C2
OUTDOOR FAN CAPACITOR MC COMPRESSOR(INNER THERMOSTAT) 52C COMPRESSOR CONTACTOR
OB192--1.qxp 23/6/97 11:46 PM Page 20