Mitsubishi Electric MS09NW User manual

SERVICE MANUAL
SPLIT-TYPE AIR CONDITIONERS
CONTENTS
1. FEATURES ························································2
2.TECHNICAL CHANGES ····································4
3. PART NAMES AND FUNCTIONS······················5
4. SPECIFICATIONS ··············································7
5. DATA ································································12
6. OUTLINES AND DIMENSIONS ······················23
7. WIRING DIAGRAM ··········································26
8. REFRIGERANT SYSTEM DIAGRAM ··············32
9. MICROPROCESSOR CONTROL ····················35
10. SERVICE FUNCTIONS ····································43
11. TROUBLESHOOTING ······································44
12. DISASSEMBLY INSTRUCTIONS ····················59
13. PARTS LIST······················································70
14. OPTIONAL PARTS ··········································79
Wireless type
Models
MS09NW (W) ·MU09NW MUM30NN
MS12NN (W) ·MU12NN MUM30NN2
MS15NN (W) ·MU15NN
MS17NN (W) ·MU17NN
MS09NW2 (W) ·MU09NW2
MS12NN2 (W) ·MU12NN2
MS15NN2 (W) ·MU15NN2
MS17NN2 (W) ·MU17NN2
No. OB192
The Slim Line.
From Mitsubishi Electric.
L
I
S
T
E
D
R
MS12NN MS12NN2
MS15NN MS15NN2
MS17NN MS17NN2
INDOOR UNIT
MU12NN MU12NN2
MU15NN MU15NN2
MU17NN MU17NN2
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.
REVISED EDITION -B
Revision:
●MS09NW2, MS12NN2, MS15NN2 and
MS17NN2 has been added.
●Parts List has been partially modified.
●Please void OB192 REVISED EDITION -A.

2
1FEATURES
Models Cooling capacity SEER
MS09NW MS09NW2 8,500Btu/h 10.2
MS12NN MS12NN2 12,300/12,600Btu/h 11.3/11.3
MS15NN MS15NN2 14,300/14,600Btu/h 10.5/10.5
MS17NN MS17NN2 15,900/16,100Btu/h 10.2/10.2
MS12NN MS15NN MS17NN
MS12NN2 MS15NN2 MS17NN2 MU12NN MU15NN MU17NN MU12NN2 MU15NN2 MU17NN2
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 information 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 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.
SWING
Revision:
●The following parts numbers have been modified.
1. OUTDOOR P.C. BOARD of MUM30NN (T2W 800 451 ➔T2W E46 451)
2. SURGE KILLER of MUM30NN (T2W E64 410 has been added)
3. CAPILLARY TUBE (for 09A, 09B) of MUM30NN (M21 463 936 ➔M21 195 936) (See REFRIGERANT SYSTEM)
4. CAPILLARY TUBE (for 15C) of MUM30NN (M21 987 936 ➔M21 G46 936) (See REFRIGERANT SYSTEM)
5. CAPILLARY TUBE (for 09A, 09B) of MUM30NN2 (M21 463 936 ➔M21 AP9 936) (See REFRIGERANT SYSTEM)
6. CAPILLARY TUBE (for 15C) of MUM30NN2 (M21 987 936 ➔M21 G46 936) (See REFRIGERANT SYSTEM)
7. HIGH PRESSURE SWITCH of MUM30NN2 (Q’ty/unit 1 ➔3)
8. MC1. MC2. CAPACITOR of MUM30NN2 (T2W 738 353 ➔T2W 903 353)
●Please void OB192REVISED EDITION -B.

3
Small in size, big on cooling.
COMPACT INDOOR UNIT
The sleek design of the NW/NN Series matches virtually any room
layout. For instance, MS09 is 1013/16 o321/16 o73/16 (HoWoD),
which used to be 143/16 o311/8o53/8.
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.
1013/16
MS09NW MS09NW2
SPACE-SAVING LAYOUT
Two or three indoor units are served by a single outdoor unit whose installation requires only minimum space. This allows
equipment installed outside the house to be arranged in a neat, space-saving layout.
FLEXIBLE INSTALLATION OF INDOOR UNITS
Each indoor unit can be connected to piping up to 65 feet in length, providing plenty of freedom in determining the best loca-
tions for installation.
MUM30NN
MUM30NN2
LCD Wireless
remote controller
MS09NW (A) MS15NN (C)
MS09NW (B)
Cooling Capacity (BTU/h)
1 Indoor Unit Operation
2 Indoor Unit Operation
3 Indoor Unit Operation
8,200
—
—
8,200
8,200
—
8,100
MS09NW
—
8,200
—
8,200
—
8,200
8,100
MS09NW
—
—
12,400
—
12,400
12,400
12,200
Operation Indoor unit MS15NN
This “3 to 1” Multi system (MSM30NN / MSM30NN2) consists of a single outdoor unit with three compressors that per-
mit up to three indoor units to be installed separate rooms, each with its own controller.
MSM30NN MSM30NN2

4
2
MS09EW
➔
MS09NW
1. Indoor unit has been 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 been 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 been 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 been 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 been 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 been changed. (The timer function was changed to the clock timer function.)
4.The swing mode has been added to indoor auto vane.
MSM30EN2
➔
MSM30NN
1. Indoor unit has been changed.
2. Outdoor unit has been changed.
3. Remote controller has been changed. (The timer function was changed to the clock timer function.)
4.The swing mode has been added to indoor auto vane.
5. Outdoor unit fan speed control has been changed.(MF1/MF2 : 1.Lo/Lo➔Stop/Hi 2.Me/Me➔Me/Me 3.Hi/Hi➔Hi/Hi)
6.The relay “X64” has been added to electric circuit.
7. Surge absorber has been added to electric circuit.
MSM30NN
➔
MSM30NN2
1. Outdoor unit has changed.
2. Compressor has changed. (Compressor A,B: KH122WEV➔KH122WES)
3. Outdoor unit fan speed control has changed.(MF1/MF2 : 1.Stop/Hi➔Lo/Lo 2.Me/Me➔Lo/Lo 3.Hi/Hi➔Hi/Hi)
4.Wiring diagram has been changed.
5. Capillary tube has been changed.
6. Accumulator has been enlarged.(Refrigerant cycle A and B)
7. High-pressure switch has been added.
8. Outdoor unit heat exchanger has changed.
MS09NW
➔
MS09NW2
MS12NN MS15NN MS17NN
➔
MS12NN2 MS15NN2 MS17NN2
1. Power supplied way has changed from “supply to both indoor and outdoor” to “supply to only outdoor”. (“Supply to both
indoor and outdoor” as before is also possible.)
2. Remote controller has changed.
(•The timer function has changed from program timer to ON/OFF timer.
NW/NN system can be used ON and OFF timer in combination.
In NW2/NN2 systems, either ON or OFF is available at a time.
•SWING button is removed, but SWING MODE function is available by VANE CONTROL button.)
3.The number of conduit holes on the outdoor unit has changed from 2 to 3.
TECHNICAL CHANGES

5
PART NAMES AND FUNCTIONS
3
INDOOR UNIT
MS09NW MS09NW2
Operation section
MS12NN
Emergency operation switch
Emergency operation switch
(When the front panel is opened)
MS09NW MS09NW2 MS09NW MS09NW2
MS12NN MS12NN2
MS15NN MS15NN2
MS17NN MS17NN2
Air inlet
(back and side)
Piping
Drainage hose
Air outlet
Drain outlet
Air inlet
(back and side)
Piping
Drainage hose
Air outlet
Drain outlet
OUTDOOR UNIT MU12NN MU12NN2
MU15NN MU15NN2
MU17NN MU17NN2
MU09NW MU09NW2
MS12NN MS12NN2
MS15NN MS15NN2
MS17NN MS17NN2
MS12NN MS12NN2
MS15NN MS15NN2
MS17NN MS17NN2

6
MS09NW MS12NN MS15NN MS17NN
REMOTE CONTROLLER
Signal transmitting
section
Operation display
section
OPERATE/STOP
(ON/OFF)button
OPERATION
SELECT button
FAN SPEED
CONTROL button
ON-TIMER button
CLOCK SET button
HR. button
MIN. button
(TIME SET button)
TEMPERATURE
button
VANE CONTROL
button
SWING button
OFF-TIMER button
RESET button
Signal transmitting
section
Operation display
section
OPERATE/STOP
(ON/OFF)button
OPERATION
SELECT button
FAN SPEED
CONTROL button
TEMPERATURE
button
VANE CONTROL
button
TIME SET button
RESET button
TIMER MODE
SELECT button
ON/OFF
TIMER CONTROL
FAN
VANE
RESET
SELECT TIME
TOO
WARM
TOO
COOL
Hr
MODE
I FEEL COOL DRY FAN
OUTDOOR UNIT
MUM30NN MUM30NN2
MS09NW2 MS12NN2 MS15NN2 MS17NN2
REMOTE CONTROLLER

7
4
Notes w1 :Test conditions are based on ARI 210/240
Rating conditions (cooling) — Indoor : 80-FDB, 67-FWB, Outdoor : 95-FDB, 75-FWB
Operating Range
ITEM MODELS
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
Refrigerant filling capacity (R-22)
Refrigerant oil (Model)
w1
w1
w1
Dry
Wet
W
D
H
Model
Winding resistance (at 68˚F) "
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
lbs
cc
8,500
840
10.1 (10.2)
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
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
2 lbs 2 oz
270 (MS56)
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)
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
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
2 lbs 14 oz
520 (MS56)
MS09NW
MS09NW
MU09NW
MS09NW2
MS09NW2
MU09NW2
MS12NN
MS12NN
MU12NN
MS12NN2
MS12NN2
MU12NN2
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, MUM30NN and MUM30NN2 outdoor unit connected.
(Please refer to the manual No.OB202 for MUM18NW.)

Item Model
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
Refrigerant filling capacity (R-22)
Refrigerant oil (Model)
w1
w1
w1
Dry
Wet
W
D
H
Model
Winding resistance (at 68˚F) "
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
lbs
cc
14,300/14,600
1,370/1,400
10.4/10.4 (10.5/10.5)
0.6
0.43
360-395-452
293-321-367
4.7
36-39-42
14
RH207NHDT
C-R 1.68 C-S 2.78
10
35
52
92
2 lbs 14 oz
520 (MS56)
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)
0.7
0.51
406-441-491
346-374-417
5.1
40-43-45
15
RH231NHDT
C-R 1.65 C-S 2.67
11
38
52
97
3 lbs
520 (MS56)
MS15NN
MS15NN
MU15NN
MS15NN2
MS15NN2
MU15NN2
MS17NN
MS17NN
MU17NN
MS17NN2
MS17NN2
MU17NN2
8
Notes w1 :Test conditions are based on ARI 210/240
Rating conditions (cooling) — Indoor : 80-FDB, 67-FWB, Outdoor : 95-FDB, 75-FWB
Operating Range
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 and MUM30NN2 outdoor unit connected.
(Please refer to the manual No.OB202 for MUM18NW.)

9
Model
Cooling capacity w1 BTU/h
w1 WPower consumption
EER (Triple unit operation)
SEER (Triple unit operation)
INDOOR UNIT MODEL
Extenal finish
Power Supply V, Hz, Phase
A
F.L.A
CFM
CFM
(Pints/h)
in.
in.
in.
in.
lbs.
V, Hz, Phase
A
F.L.A
Winding resistance (at 68˚F) "
Model
W
D
H
W
D
H
Dry
Wet
Liquid
Gas
Indoors
Outdoors
Height difference
Piping length
R.L.A
L.R.A
in.
in.
in.
in.
in.
ft
ft
lbs.
Max. fuse size (time delay)
Min. ampacity
Fan motor
Airflow
Lo-Me-Hi
Moisture removal
Cond. drain connection OD
Dimensions
Weight
OUTDOOR UNIT MODEL
External fnish
Power supply
Max. fuse sizu (time delay)
Min. ampacity
Fan motor
Compressor
Refrigerant control
Dimensions
Weight
REMOTE CONTROLLER
Control voltage (be built-in transformer)
REFRIGERANT PIPING
Pipe size
Connection
method
Between the
indoor &
outdoor units
Items MSM30NN
Triple-Unit
A+B+C
28,400
2,990
DoubIe-Unit
A+B A+C or B+C
16,400 20,600
1,860 9.5
10.0
2,060
MS15NNMS09NW
115,60,1
15.0 0.6
0.43
360-395-452
314-342-392
3.2
5/8
39-15/16
7-1/2
12-5/8
31
MUM30NN
Munsell 5Y 7/1
208/230,60,1(3-wire)
30
25
0.8+0.7
KH122WEV<115V> RH167NAB<208/230V>
C-R 0.97 C-S 4.81 C-R 2.47 C-S 4.62
10 8
37 29
Capillary tube
37-7-16
15-3/8
45-5/16
240
Wireless type
DC12V
Not supplied (optional parts)
1/4 1/4
3/8 5/8
Flared Flared
Flared Flared
Max. 25 Max. 25
Max. 65
3 lbs 3 oz
270 (MS56)
Max. 65
3 lbs 8 oz
520 (MS56)
Notes w1.Test conditions are based on ARI 210/240
Rating conditions (cooling) — Indoor : 80˚FDB, 67˚FWB, Outdoor : 95˚FDB, 75˚FWB
Operating Range
Cooling Maximum
Maximum
Indoor air intake temperature
90˚FDB,71˚FWB
67˚FDB,57˚FWB
Outdoor air intake temperature
115˚FDB
67˚FDB
Single-Unit
A or B C
990
8,200 12,400
1,220
0.5
0.37
208-265-328
177-226-279
2.1
5/8
32-1/16
7-3/16
18
10-13/16
A B C
MS09NW
White
0.5
0.37
208-265-328
177-226-279
2.1
5/8
32-1/16
7-3/16
18
10-13/16
Sound level dB (A) 4242 42
Sound level dB (A) Max. 57
Refrigerant filling capacity (R-22)
Refrigerant oil (Model) lbs.
cc

10
Model
Cooling capacity w1BTU/h
w1WPower consumption
EER (Triple unit operation)
SEER (Triple unit operation)
INDOOR UNIT MODEL
Extenal finish
Power Supply V, Hz, Phase
A
F.L.A
CFM
CFM
(Pints/h)
in.
in.
in.
in.
lbs.
V, Hz, Phase
A
F.L.A
Winding resistance (at 68˚F) "
Model
W
D
H
W
D
H
Dry
Wet
Liquid
Gas
Indoors
Outdoors
Height difference
Piping length
R.L.A
L.R.A
in.
in.
in.
in.
in.
ft
ft
lbs.
Max. fuse size (time delay)
Min. ampacity
Fan motor
Airflow
Lo-Me-Hi
Moisture removal
Cond. drain connection OD
Dimensions
Weight
OUTDOOR UNIT MODEL
External fnish
Power supply
Max. fuse sizu (time delay)
Min. ampacity
Fan motor
Compressor
Refrigerant control
Dimensions
Weight
REMOTE CONTROLLER
Control voltage (be built-in transformer)
REFRIGERANT PIPING
Pipe size
Connection
method
Between the
indoor &
outdoor units
Items MSM30NN2
Triple-Unit
A+B+C
28,400
2,870
DoubIe-Unit
A+B A+C or B+C
16,400 20,600
1,830 9.9
10.0
2,060
MS15NN
White
MS09NW
115,60,1
15.0 0.6
0.43
360-395-452
314-342-392
3.2
5/8
39-15/16
7-1/2
12-5/8
31
MUM30NN2
Munsell 5Y 7/1
208/230,60,1(3-wire)
30
25
0.8+0.7
KH122WES<115V> RH167NAB<208/230V>
C-R 0.98 C-S 2.21 C-R 2.47 C-S 4.62
10 8
37 29
Capillary tube
37-7/16
15-3/8
45-5/16
244
Wireless type
DC12V
Not supplied (optional parts)
1/4 1/4
3/8 5/8
Flared Flared
Flared Flared
Max. 25 Max. 25
Max. 65
2 lbs 14 oz
270 (MS56)
Max. 65
3 lbs 1 oz
520 (MS56)
Notes w1.Test conditions are based on ARI 210/240
Rating conditions (cooling) — Indoor : 80˚FDB, 67˚FWB, Outdoor : 95˚FDB, 75˚FWB
Operating Range
Cooling Maximum
Maximum
Indoor air intake temperature
90˚FDB,71˚FWB
67˚FDB,57˚FWB
Outdoor air intake temperature
115˚FDB
67˚FDB
Single-Unit
A or B C
990
8,200 12,400
1,260
0.5
0.37
208-265-328
177-226-279
2.1
5/8
32-1/16
7-3/16
18
10-13/16
A B C
MS09NW
0.5
0.37
208-265-328
177-226-279
2.1
5/8
32-1/16
7-3/16
18
10-13/16
Sound level dB (A) 4242 42
Sound level dB (A) Max. 57
Refrigerant filling capacity (R-22)
Refrigerant oil (Model) lbs.
cc

11
wHeight difference
should be within
25ft regardless of
which unit, indoor
or outdoor
position is high.
wMax. Height
difference 25ft Additional Piping
Max. length
A
Indoor
unit
Outdoor unit
MAX. HEIGHT DIFFERENCE
Models
MS09NW MS09NW2
MS12NN MS12NN2
MS15NN MS15NN2
MS17NN MS17NN2
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
MSM30NN MSM30NN2
Indoor unit A
MS09NW
wMax. Height
difference 25ft
Indoor unit B
MS09NW
Outdoor unit
MUM30NN
MUM30NN2
Indoor unit C
MS15NN
Max. Length
65ft
wMax. Height
difference 25ft
wMax. Height
difference 25ft
Max. Length
65ft
Max. Length
65ft
Model Additional piping Max. length : ft
A
Length of connecting pipe : in.
MS09NW
MS15NN 65
Gas Liquid Indoor unit
16-15/16
Piping size O.D. : in.
0
[3/8
[5/8 [1/4
Outdoor unit
MAX. HEIGHT DIFFERENCE

12
DATA
5
Model
Indoor air Outdoor intake air DB temperature (˚F)
MS09NW
MS09NW2
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
MS12NN2
MS15NN
MS15NN2
MS17NN
MS17NN2
Notes 1.IWB : Intake air wet-bulb temperature.
TC :Total Capacity (x103Btu/h), SHC : Sensible Heat Capacity (x103Btu/h)
TPC :Total Power Consumption (kW)
2.SHC is based on 80˚F of indoor intake air DB temperature.
Model Refrigerant piping length (one way)
MS09NW MS09NW2
MS12NN MS12NN2
MS15NN MS15NN2
MU17NN MS17NN2
MUM30NN MUM30NN2
1.0
1.0
25ft (std)
0.954
0.954
40ft
0.927
0.927
49ft
Model
Indoor air Outdoor intake air DB temperature (˚F)
MS09NW
MS15NN
71
67
63
71
67
63
TC
10.05
9.51
8.94
15.19
14.38
13.52
SHC
5.89
6.85
7.63
8.76
10.21
11.40
TPC
0.88
0.83
0.79
1.09
1.03
0.98
TC
9.39
8.86
8.28
14.20
13.39
12.52
SHC
5.51
6.38
7.07
8.19
9.51
10.56
TPC
0.97
0.92
0.88
1.19
1.13
1.08
TC
8.82
8.20
7.71
13.33
12.40
11.66
SHC
5.17
5.90
6.58
7.69
8.80
9.83
TPC
1.04
0.99
0.95
1.28
1.22
1.17
TC
8.20
7.63
7.01
12.40
11.53
10.60
SHC
4.81
5.49
5.98
7.15
8.19
8.94
TPC
1.09
1.05
1.01
1.35
1.29
1.24
TC
7.54
7.01
6.40
11.41
10.60
9.67
SHC
4.43
5.05
5.46
6.58
7.53
8.16
TPC
1.14
1.10
1.05
1.40
1.35
1.29
IWB
(˚F)75 85 95 105 115
Notes 1. IWB : Intake air wet-bulb temperature
TC :Total Capacity (x103Btu/h), SHC :Sensible Heat Capacity (x103Btu/h)
TPC :Total Power Consumption (kW)
2. SHC is based on 80˚F of indoor intake air DB temperature.
Model
Indoor air Outdoor intake air DB temperature (˚F)
MS09NW
MS15NN
71
67
63
71
67
63
TC
10.05
9.51
8.94
15.19
14.38
13.52
SHC
5.89
6.85
7.63
8.76
10.21
11.40
TPC
0.88
0.83
0.79
1.12
1.06
1.01
TC
9.39
8.86
8.28
14.20
13.39
12.52
SHC
5.51
6.38
7.07
8.19
9.51
10.56
TPC
0.97
0.92
0.88
1.23
1.17
1.12
TC
8.82
8.20
7.71
13.33
12.40
11.66
SHC
5.17
5.90
6.58
7.69
8.80
9.83
TPC
1.04
0.99
0.95
1.32
1.26
1.20
TC
8.20
7.63
7.01
12.40
11.53
10.60
SHC
4.81
5.49
5.98
7.15
8.19
8.94
TPC
1.09
1.05
1.01
1.39
1.34
1.29
TC
7.54
7.01
6.40
11.41
10.60
9.67
SHC
4.43
5.05
5.46
6.58
7.53
8.16
TPC
1.14
1.10
1.05
1.45
1.40
1.37
IWB
(˚F)75 85 95 105 115
MS09NWo2 MS15NNo1 MUM30NN2 .
PERFORMANCE DATA (ONE INDOOR UNIT WITH ONE OUTDOOR UNIT)
MS09NWo2 MS15NNo1 MUM30NN .
PERFORMANCE DATA (ONE INDOOR UNIT WITH ONE OUTDOOR UNIT)
MS09NW MS12NN MS15NN MS17NN MS09NW2 MS12NN2 MS15NN2 MS17NN2
-
0.878
65ft
1. PERFORMANCE DATA
1) COOLING CAPACITY
2) COOLING CAPACITY CORRECTIONS

13
2. PERFORMANCE CURVE
NOTE : A point on the curve shows the reference point.
MS09NW MS09NW2 MS12NN MS12NN2
MU09NW MU09NW2 MU12NN MU12NN2
MS15NN MS15NN2 MS17NN MS17NN2
MU15NN MU15NN2 MU17NN MU17NN2
71
67
63
71
67
63
71
67
63
71
67
63
Total power consumption (kW) Total capacity ( o10 Btu/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 Btu/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 BTU/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 BTU/h)
20
18
16
14
2
1
Outdoor intake air DB temperature (-F)

14
65
0.6
0.8
1.0
1.2
6
8
10
12
75 85 95 105 115
Outdoor intake air DB temperature (-F)
Total power consumption (kW) Total capacity (o 103Btu/h)
Cooling capacity
SHF at rating condition = 0.72
Airflow = 279CFM
Bypass Factor = 0.24
Indoor intake air WB temperature (-F)
Indoor intake air WB temperature (-F)
63
67
71
63
67
71
65
0.9
1.1
1.3
1.5
10
12
14
16
75 85 95 105 115
Outdoor intake air DB temperature (-F)
Total power consumption (kW) Total capacity (o 103Btu/h)
Cooling capacity
SHF at rating condition = 0.71
Airflow = 392CFM
Bypass Factor = 0.19
Indoor intake air WB temperature (-F)
Indoor intake air WB temperature (-F)
63
67
71
63
67
71
MSM30NN MSM30NN2 (ONE INDOOR UNIT WITH ONE OUTDOOR UNIT)
NOTE : A point on the curve shows the reference point.
MS09NW
MUM30NN MS15NN
MUM30NN
65
0.6
0.8
1.0
1.2
6
8
10
12
75 85 95 105 115
Outdoor intake air DB temperature (-F)
Total power consumption (kW) Total capacity (o 103Btu/h)
Cooling capacity
SHF at rating condition = 0.72
Airflow = 279CFM
Bypass Factor = 0.24
Indoor intake air WB temperature (-F)
Indoor intake air WB temperature (-F)
63
67
71
63
67
71
65
0.9
1.1
1.3
1.5
10
12
14
16
75 85 95 105 115
Outdoor intake air DB temperature (-F)
Total power consumption (kW) Total capacity (o 103Btu/h)
Cooling capacity
SHF at rating condition = 0.71
Airflow = 392CFM
Bypass Factor = 0.19
Indoor intake air WB temperature (-F)
Indoor intake air WB temperature (-F)
63
67
71
63
67
71
MS09NW
MUM30NN2 MS15NN
MUM30NN2

15
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
MU09NW2
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
MU12NN
MU12NN2
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

16
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
86 F
80
75
70
86 F
80
75
70
MU17NN
MU17NN2
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
MU15NN2

17
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.
MS09NW MS15NN
MUM30NN MUM30NN
MS09NW MS15NN
MUM30NN MUM30NN
67
40
50
60
70
80
90
100
PSIG
70 Outdoor ambient temperature
75 80 85 90 95 100 104-F
Suction pressure
70-F
86-F
80-F
75-F
Indoor DB temperature
67
170
180
200
220
240
260
280
300
PSIG
70 Outdoor ambient temperature
75 80 85 90 95 100 104-F
70-F
75-F
80-F
86-F
Condensing pressure
Indoor DB temperature
MSM30NN
(ONE INDOOR UNIT WITH ONE OUTDOOR UNIT)
67
170
180
200
220
240
260
280
300
PSIG
70 Outdoor ambient temperature
75 80 85 90 95 100 104-F
70-F
75-F
80-F
86-F
Condensing pressure
Indoor DB temperature
67
40
50
60
70
80
90
100
PSIG
70 Outdoor ambient temperature 75 80 85 90 95 100 104-F
Suction pressure
70-F
86-F
80-F
75-F
Indoor DB temperature

18
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.
MS09NW MS15NN
MUM30NN2 MUM30NN2
MS09NW MS15NN
MUM30NN2 MUM30NN2
67
40
50
60
70
80
90
100
PSIG
70 Outdoor ambient temperature
75 80 85 90 95 100 104-F
Suction pressure
70-F
86-F
80-F
75-F
Indoor DB temperature
67
170
180
200
220
240
260
280
300
PSIG
70 Outdoor ambient temperature
75 80 85 90 95 100 104-F
70-F
75-F
80-F
86-F
Condensing pressure
Indoor DB temperature
MSM30NN2
(ONE INDOOR UNIT WITH ONE OUTDOOR UNIT)
67
170
180
200
220
240
260
280
300
PSIG
70 Outdoor ambient temperature
75 80 85 90 95 100 104-F
70-F
75-F
80-F
86-F
Condensing pressure
Indoor DB temperature
67
40
50
60
70
80
90
100
PSIG
70 Outdoor ambient temperature
75 80 85 90 95 100 104-F
Suction pressure
70-F
86-F
80-F
75-F
Indoor DB temperature

✻ Control voltage
Power supply voltage to serial signal circuit is 12V DC. Between
1
+ and
2
-- on in-out terminal block will be 12V DC peak voltage.
19
MS09NW2
INDOOR UNIT
115V 60Hz, 1[
MS12/15/17NN
INDOOR UNIT 115V 60Hz, 1[
OUTDOOR UNIT
Field installed
115V
60Hz, 1[
SIGNAL WIRE
2 wire 12V DC
OUTDOOR UNIT
Field installed
208/230V
60Hz, 1[
SIGNAL WIRE
2 wire 12V DC
MS12/15/17NN2
INDOOR UNIT
OUTDOOR UNIT
Field installed
208/230V
60Hz, 1[ 3wire
MS09NW
INDOOR UNIT 115V 60Hz, 1[
OUTDOOR UNIT
Field installed
115V
60Hz, 1[
SIGNAL WIRE
2 wire 12V DC 115V 60Hz, 1[
SIGNAL WIRE
2 wire 12V DC
• The following wiring can also apply to MS09NW2, MS12/15/17NN2.
115V
4. STANDARD OPERATION DATA
MS09NW MS12NN MS15NN MS17NN MS09NW2 MS12NN2 MS15NN2 MS17NN2
MS09NW MS09NW2
Cooling
8,500
0.7
0.84
MS09NW MS09NW2
115, 1, 60
0.035
0.34
MU09NW MU09NW2
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
PSIG
PSIG
˚F
˚F
˚F
˚F
ft
—
˚F
˚F
˚F
˚F
rpm
CFM
˚F
˚F
rpm
CFM
MS15NN MS15NN2
Cooling
14,300/14,600
0.65
1.37/1.40
MS15NN MS15NN2
115, 1, 60
0.047
0.41
MU15NN MU15NN2
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 MS17NN2
Cooling
15,900/16,100
0.65
1.57/1.60
MS17NN MS17NN2
115, 1, 60
0.054
0.47
MU17NN MU17NN2
208/230, 1, 60
1.516/1.546
7.01/6.41
0.49
252
77
174
114
46
160
25
3lbs oz
80
67
56
54
1,290
417
95
—
830/900
1,288/1,394
MS12NN MS12NN2
Cooling
12,300/12,600
0.71
1.10/1.13
MS12NN MS12NN2
115, 1, 60
0.047
0.41
MU12NN MU12NN2
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

✻ Control voltage
Power supply voltage to serial
signal circuit is 12V DC.
Between
1
+ and
2
-- on in-out
terminal block will be 12V DC
peak voltage.
20
STANDARD OPERATION DATA
MSM30NN
MODEL Triple
A+B+CDouble A+BA
+C or B+CSingle
115,60,1 115,60,1 115,60,1
0.7+0.8 0.65+0.75 0.6+0.7
95 95 95
———
850/940 750/840 0/1030
2,720 2,360 1,039
A or B C
28,400 16,400 20,600 8,200 12,400
0.72 0.72 0.71 0.72
2.99 1.86 2.06 0.99 1.22
2.873 1.79 1.978 0.955 1.173
MSM30NN
CoolingUnit
BTU/h
—
kW
kW
A
kW
A
A
PSIG
PSIG
-F
-F
-F
-F
ft
—
-F
-F
-F
-F
DB
WB
DB
WB
R.P.M.
CFM
-F
-F
DB
WB
R.P.M.
CFM
Item
Capacity
SHFTotal
Electrical
circuit
Refrigerant
circuit
Indoor
side
Outdoor
side
Input
Indoor unit model
Power supply (V,Hz,{)
Input
Fan current
Outdoor unit model
Power supply (V,Hz,{)
Input
Comp. current
Fan current
Condensing pressure
Suction pressure
Discharge temp.
Condensing temp.
Suction temp.
Comp.shell botton temp.
Ref.pipe length
Refrigerant charge
Entering
air temp.
Discharge
air temp.
Entering
air temp.
Fan speed
Airflow (Hi)
Fan speed
Airflow
MS09NW MS09NW MS15NN MS09NW MS09NW MS09NW MS15NN MS09NW MS15NN
0.035
0.34 0.035 0.34 0.047
0.71
0.41 0.035 0.34 0.035 0.34
MUM30NN
208/230,60,1(3-wire)
0.035
0.34 0.047 0.41 0.035 0.34 0.047 0.41
7.0
273
80
154
122
47
130
25
3 lbs 3 oz
80
67
60
57
1,230
279
264
80
157
118
47
130
25
3 lbs 3 oz
80
67
60
57
1,230
279
243
82
169
111
54
145
25
3 lbs 8 oz
80
67
58
57
1,200
392
262
78
197
118
60
171
25
3 lbs 3 oz
80
67
60
57
1,230
279
263
79
171
116
47
146
25
3 lbs 3 oz
80
67
60
57
1,230
279
269
78
151
118
47
124
25
3 lbs 3 oz
80
67
60
57
1,230
279
240
82
169
110
54
144
25
3 lbs 8 oz
80
67
58
57
1,200
392
267
80
143
121
52
129
25
3 lbs 3 oz
80
67
60
57
1,230
279
267
85
141
118
51
139
25
3 lbs 8 oz
80
67
58
57
1,200
392
7.0 3.8 7.0 7.0 7.0 3.8 7.0 3.8
0.72 0.71
INDOOR UNIT C
INDOOR UNIT B
INDOOR UNIT A
OUTDOOR UNIT
208/230V,60Hz,
1{3wire
POWER SUPPLY
115V common
115V 230V
SIGNAL WIRE 2wire 12V DC
115V,60Hz,1{
115V,60Hz,1{
115V,60Hz,1{
POWER SUPPLY