Mitsubishi MS-10SN-C2, MS-12SN-C2, MS-15SN-C1, MS-15SN-C2, MS-12SN-C1 Service Manual
...
SPLIT-TYPE, AIR CONDITIONERS
Revision:
●MS-09SN -, MS-10SN -, MS-12SN -, MS-15SN -
and MS-18SN - has been added.
●Please void OB256 REVISED EDITION-A.
SERVICE MANUAL
Wireless type
Models
C2C2C2C2
C1
No. OB256
REVISED EDITION-B
MS-09SN MS-09SN MS-10SN MS-10SN MS-12SN MS-12SN MS-15SN MS-15SN MS-17SN MS-18SN MS-24SN -
MS-09SN MS-09SN MS-10SN MS-10SN -
C1
C2
C1
C2
(WH)
(WH)
(WH)
(WH)
(WH)
(WH)
(WH)
(WH)
(WH)
(WH)
(WH)
· MU-09SN -
· MU-09SN -
· MU-10SN -
· MU-10SN -
· MU-12SN -
· MU-12SN -
· MU-15SN -
· MU-15SN -
· MU-17SN -
· MU-18SN -
· MU-24SN -
CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················4
3. SPECIFICATION·················································6
4. OUTLINES AND DIMENSIONS·························9
5. WIRING DIAGRAM ··········································12
6. REFRIGERANT SYSTEM DIAGRAM··············18
7. PERFORMANCE CURVES······························22
8. MICROPROCESSOR CONTROL ····················25
9. SERVICE FUNCTIONS ····································32
10. TROUBLESHOOTING······································34
11. DISASSEMBLY INSTRUCTIONS ·····················42
12. PARTS LIST······················································50
13. OPTIONAL PARTS ···········································58
C1C1
C2C2
C1C1
C2C2
C1C1
C2C2
C1C1
C2C2
C1C1
C1C1
C1C1
1
TECHNICAL CHANGES
MS-09NW - ➔ MS-09SN -
1. Power supply voltage has changed. (110V ➔ 220V)
2. Indoor unit model has changed.
3. Remote controller has changed.
• SLEEP MODE function has been removed.
• ECONO COOL operation has been added.
• SWING button was removed, but SWING MODE function is available by VANE CONTROLbutton.
MS-10SN -
New model
C1
MS-12NN - ➔ MS-12SN -
1. Design of receiver part on indoor unit has changed.
2. Remote controller has changed.
• SLEEP MODE function has been changed.
• ECONO COOL operation has been added.
• SWING button was removed, but SWING MODE function is available by VANE CONTROLbutton.
MS-15NN - ➔ MS-15SN MS-17NN - ➔ MS-17SN -
1. Design of receiver part on indoor unit has changed.
2. Remote controller has changed.
• SLEEP MODE function has been removed.
• ECONO COOL operation has been added.
• SWING button was removed, but SWING MODE function is available by VANE CONTROLbutton.
MS-24NN - ➔ MS-24SN -
1. Design of receiver part on indoor unit has changed.
2. Remote controller has changed.
• SLEEP MODE function has removed.
• ECONO COOL operation has added.
• SWING button was removed, but SWING MODE function is available by VANE CONTROLbutton.
C1C1
C1C1
C1C1
C1C1
C1C1
MS-09SN - ➔ MS-09SN MS-10SN - ➔ MS-10SN MS-12SN - ➔ MS-12SN MS-15SN - ➔ MS-15SN -
1. Fan guard has added.
2. Indoor electronic control P.C. board has changed.
Indoor fan speed has changed.
MS-18SN -
New model
C1
C2C1
C2C1
C2C1
C2C1
2
MU-09NW - ➔ MU-09SN -
C1C1
1. Outdoor unit model has changed.
2. Additional refrigerant amount of extended pipe length over 7m has changed. (10g/m ➔ 15g/m)
MU-10SN -
C1
New model
MU-12NN - ➔ MU-12SN -
C1C1
1. Outdoor unit model has changed.
2. Additional refrigerant amount of extended pipe length over 7m has changed. (10g/m ➔ 15g/m)
3. Diameter of expansion pipe (GAS) has changed. ([15.88 ➔ [12.7)
MU-15NN - ➔ MU-15SN MU-17NN - ➔ MU-17SN -
C1C1
C1C1
1. Additional refrigerant amount of extended pipe length over 7m has changed. (10g/m ➔ 15g/m)
2. Service port has removed from outdoor unit.
3. Fusible plug has removed from outdoor unit.
MU-24NN - ➔ MU-24SN -
C1C1
1. Additional refrigerant amount of extended pipe length over 7m has changed. (10g/m ➔ 15g/m)
MU-09SN - ➔ MU-09SN MU-10SN - ➔ MU-10SN MU-12SN - ➔ MU-12SN MU-15SN - ➔ MU-15SN -
C2C1
C2C1
C2C1
C2C1
1. Sub number has changed.
MU-18SN -
C1
New model
3
2
Emergency operation switch
Operation section
Horizontal vane
Air filter
Deodorizing filter(option)
(gray sponge type)
Vertical vane
Air inlet
Grille
Remote control
receiving section
Remote controller
Display section
(when the grille is open)
Operation indicator lamp
Receiving section
Air cleaning filter(option)
(white bellows type)
Front panel
Emergency operation switch
Operation indicator lamp
Receiving section
Air inlet
Piping
Drain hose
Air outlet
Drain outlet
(back and side)
PART NAMES AND FUNCTIONS
INDOOR UNIT
MS-09SN MS-09SN MS-10SN MS-10SN -
C1
C2
C1
C2
MS-12SN MS-12SN MS-15SN MS-15SN MS-17SN MS-18SN MS-24SN -
C1
C2
C1
C2
C1
C1
C1
MS-09SN MS-09SN MS-10SN MS-10SN -
C1
C2
C1
C2
MS-12SN MS-12SN MS-15SN MS-15SN -
C1
C2
C1
C2
OUTDOOR UNIT
MU-09SN MU-09SN MU-10SN MU-10SN MU-12SN MU-12SN -
MS-17SN MS-18SN MS-24SN -
C1
C2
C1
C2
C1
C2
MS-09SN MS-09SN MS-10SN MS-10SN -
C1
C2
C1
C2
C1
C1
C1
MS-12SN MS-12SN MS-15SN MS-15SN -
C1
MS-17SN -
C2
MS-18SN -
C1
MS-24SN -
C2
C1
C1
C1
MU-15SN MU-15SN MU-17SN MU-18SN MU-24SN -
C1
C2
C1
C1
C1
4
ACCESSORIES
<Indoor unit>
Installation plate
Installation plate fixing screw 4 x 25 mm
Remote controller mounting hardware
Fixing screw for 3 3.5 x 16 mm (Black)
Battery (AAA) for remote controller
Wireless remote controller
Felt tape (Used for left or left-rear piping)
1
5
1
2
2
1
1
1
2
3
4
5
6
7
MS-09SNMS-09SN-
MS-12SNMS-12SNMS-15SNMS-15SN-
1
6
1
2
2
1
1
MS-17SNMS-18SNMS-24SN-
C2
C1
C2
C1
C2
C1
C1
C1
C1
REMOTE CONTROLLER
MS-09SN MS-09SN MS-10SN MS-10SN MS-12SN MS-12SN MS-15SN MS-15SN MS-17SN MS-18SN MS-24SN -
C1
C2
C1
C2
C1
C2
C1
C2
C1
C1
C1
Signal transmitting section
Operation display section
OPERATE /STOP
(ON /OFF)button
ON/OFF
TOO
WARM
PM
AM
TOO
COOL
TEMPERATURE buttons
FAN SPEED CONTROL button
OPERATION SELECT button
Open the front lid.
ECONO COOL button
RESET button
5
ON/OFF
WARM
FAN
I FEEL
COOL
VANE
DRY
FAN
MODE
ECONO COOL
RESET
TOO
CLOCK
CLOCK
PM
AM
TOO
COOL
STOP
START
HR.
MIN.
OFF-TIMER button
ON-TIMER button
HR. button
MIN. button
(TIME SET button)
CLOCK SET button
VANE CONTROL button
3
Indoor model
Function
Power supply
Capacity
Dehumidification
Air flow
(High/Med.w/Loww)
Power outlet
Running current
Total input
Auxiliary heater
Power factor
Starting current
Fan motor current
Model
Winding
resistance(at20:)
Dimensions WOHOD
Weight
Air direction
Sound level
(High/Med.w/Loww)
Fan speed
(High/Med.w/Loww)
Fan speed regulator
Thermistor RT11(at25:)
Thermistor RT12(at25:)
Outdoor model
Air flow
Compressor motor current
Fan motor current
Model
Output
Winding
resistance(at20:)
Model
Winding
resistance(at20:)
Dimensions WOHOD
Weight
Sound level
Fan speed
Fan speed regulator
Refrigerant filling
capacity(R22)
Refrigerating oil (Model)
Capillary tube
(Inner diameter O length)
(kcal/h)/(kW)
R/h
K /h
A
A
W
A(kW)
%
A
A
(kcal/h/W)/(W/W)
"
mm
kg
dB
rpm
k"
k"
K /h
A
A
W
"
"
mm
kg
dB
rpm
kg
cc
mm
MS-10SN -
C1
2,450/2.85
4.50
1,005
99
2.44/2.84
910/800w/680
w
MU-10SN -
C1
3.97
1.2
564/474
w
/384
w
26
10
37/33
w
/29
w
1,950
0.36
RH-145NGDT
700
C-R 2.74
C-S 3.78
RA6N33-AA
WHT-BLK 150
BLK-RED 265
49
740
0.82
[1.6 O 900
MS-10SN -
C2
2,500/2.91
4.61
992
98
2.52/2.93
940/830w/710
w
MU-10SN -
C2
4.08
Electrical
data
Fan
motor
Special
remarks
Compressor
Electrical
data
Fan
motor
Special
remarks
Capacity
Energy efficiency ratio (EER)
Capacity
Connection method
Connection method
MS-09SN -
C1
880
97
2.44/2.84
890/740w/600
w
MU-09SN -
C1
2,150/2.50
1.1
474/384
w
/300
w
4.13
21
9
35/30
w
/26
w
1,638
3.68
0.28
RH-130NGDT
650
C-R 3.19
C-S 3.55
RA6N23-AA
WHT-BLK 169
BLK-RED 226
45
630
0.80
[1.4 O 600
MS-09SN -
C2
843
93
2.55/2.97
920/770w/630
w
MU-09SN -
C2
Cooling
Single phase
220V, 60Hz
10
—
0.17
RC4N19-AA
WHT-BLK 335
BLK-RED 320
850O278O191
5
3
10
10
Flared
780o540o255
32
1
300(MS56)
Flared
SPECIFICATION
NOTE:Test conditions are based on CNS3615.
Cooling : Indoor DB 27°C / WB 19.5°C
Outdoor DB 35°C /
Indoor-Outdoor piping length 5m
w Reference value
6
C1
Indoor model
MS-12SN -
Function
Power supply
Capacity
Dehumidification
Capacity
Air flow
(High/Med.w/Loww)
Power outlet
Running current
Total input
Auxiliary heater
Electrical
data
Power factor
Starting current
Fan motor current
Energy efficiency ratio (EER)
(kcal/h)/(kW)
R/h
K /h
A
A
W
A(kW)
%
A
A
(kcal/h/W)(W/W)
3,150/3.66
1.5
5.14
1,120
99
30
2.81/3.27
Model
Winding
Fan
motor
resistance(at20:)
Dimensions WOHOD
Weight
"
mm
kg
Air direction
Sound level
Fan speed
Fan speed regulator
Special
remarks
Thermistor RT11(at25:)
Thermistor RT12(at25:)
(High/Med.w/Loww)
(High/Med.w/Loww)
dB
rpm
1,180/1,040w/900
w
k"
k"
Connection method
C1
Outdoor model
Capacity
Air flow
Compressor motor current
Fan motor current
Electrical
data
Model
Output
Winding
Compressor
resistance(at20:)
Model
Winding
Fan
motor
resistance(at20:)
Dimensions WOHOD
Weight
Sound level
Fan speed
MU-12SN -
K /h
A
A
W
"
"
mm
kg
dB
rpm
1,656
4.52
0.36
RH-167NHDT
800
C-R 2.16
C-S 3.11
RA6N33-AA
WHT-BLK 150
BLK-RED 265
780o540o255
36
49
700
Fan speed regulator
Refrigerant filling
capacity(R22)
Special
remarks
Refrigerating oil (Model)
Capillary tube
(Inner diameter O length)
kg
cc
mm
1.20
520(MS56)
[1.8O 500
Connection method
NOTE:Test conditions are based on CNS3615. (MS-12/15SN- )
C1
Cooling : Indoor DB 27°C / WB 19.5°C
Outdoor DB 35°C /
Test conditions are based on CNS 14464. (MS-12/15SN- )
Cooling : Indoor DB 27°C / WB 19°C
Outdoor DB 35°C /
Indoor-Outdoor piping length 5m
w Reference value
7
MS-12SN -
Single phase
220V, 60Hz
780/672
RA4N30-AB
WHT-BLK 118
BLK-RED 162
1,015O320O190
42/38
1,210/1,070w/930
MU-12SN -
C2
C2
MS-15SN -
Cooling
w
/570
15
—
0.26
14
5
w
w
/34
w
1,180/1,040w/900
3
10
10
Flared
C2
MU-15SN -
1
Flared
w
C1
MS-15SN -
3,650/4.24
2.2
6.50
1,400
98
36
2.61/3.03
w
1,210/1,070w/930
C1
MU-15SN -
2,340
5.74
0.50
RH-207NHDT
1,000
C-R 1.68
C-S 2.78
RA6N50-BA
WHT-BLK 116
BLK-RED 111
850o605o290
42
52
865
1.30
520(MS56)
[1.8 O 550
C2
w
C2
Indoor model
Function
Power supply
Capacity
Dehumidification
Air flow
(High/Med.w/Loww)
Power outlet
Running current
Total input
Auxiliary heater
Power factor
Starting current
Fan motor current
Model
Winding
resistance(at20:)
Dimensions WOHOD
Weight
Air direction
Sound level
(High/Med.w/Loww)
Fan speed
(High/Med.w/Loww)
Fan speed regulator
Thermistor RT11(at25:)
Thermistor RT12(at25:)
Outdoor model
Air flow
Compressor motor current
Fan motor current
Model
Output
Winding
resistance(at20:)
Model
Winding
resistance(at20:)
Dimensions WOHOD
Weight
Sound level
Fan speed (High)
Fan speed regulator
Refrigerant filling
capacity(R22)
Refrigerating oil (Model)
Capillary tube
(Inner diameter O length)
(kcal/h)/(kW)
R/h
K /h
A
A
W
A(kW)
%
A
A
(kcal/h/W)/(W/W)
"
mm
kg
dB
rpm
k"
k"
K /h
A
A
W
"
"
mm
kg
dB
rpm
kg
cc
mm
Electrical
data
Fan
motor
Special
remarks
Compressor
Electrical
data
Fan
motor
Special
remarks
Capacity
Energy efficiency ratio (EER)
Capacity
Connection method
Connection method
Cooling
Single phase
220V, 60Hz
—
0.29
RA4N30-AB
WHT-BLK 118
BLK-RED 162
1,015O320O190
14
5
3
10
10
Flared
850O605O290
Flared
MS-17SN -
C1
3,950/4.59
2.3
7.30
1,580
98
39
2.50/2.91
1,260/1,140
w
/1,020
w
MU-17SN -
C1
6.51
RH-231NHDT
1,100
C-R 1.65
C-S 2.67
1.35
[2.0 O 700
2,280
0.50
RA6N50-BA
WHT-BLK 116
BLK-RED 111
44
52
865
1
520(MS56)
15
MS-18SN -
C1
4,500/5.23
2.6
840/750
w
/660
w
8.77
1,910
99
49
2.36/2.74
45/41
w
/38
w
1,290/1,170w/1,050
w
MU-18SN -
C1
7.98
RH-277NHDT
1,300
C-R 1.38
C-S 2.55
1.40
[2.0 O 500
MS-24SN -
C1
5,600/6.51
3.4
20
14.00
3,040
99
56
1.84/2.14
1,260/1,140
w
/1,020
w
MU-24SN -
C1
2,460
13.08
0.63
NH-38NBDT
1,700
C-R 0.83
C-S 1.83
RA6V60-AC
WHT-BLK 81.1, BLK-RED 102
BLK-YLW 92.2
61
54
930
2
2.15
1,200(MS32)
[2.0O 700(600+100)
NOTE:Test conditions are based on CNS3615. (MS-17/24SN- )
Cooling : Indoor DB 27°C / WB 19.5°C
Outdoor DB 35°C /
Test conditions are based on CNS14464. (MS-18SN- )
Cooling : Indoor DB 27°C / WB 19°C
Outdoor DB 35°C /
Indoor-Outdoor piping length 5m
w Reference value
C1
C1
8
4
OUTLINES AND DIMENSIONS
MS-09SN MS-09SN -
INDOOR UNIT
278
58
162
231.5
42
Unit: mm
271 4.5
C1
169
2.5
116.581.5
Wall hole [65
Installation plate
Liquid line [ 6.35-0.5m
Gas line [
{
Insulation [37 O.D
Drain hose [16
(Connected part O.D)
Insulation [ 28
9.52-0.43m
[ 21 I.D
41
Air in
82
326
7 or more
100
Air out
326
5
189
67
78
C2
Installation plate
Indoor unit
818
850
16562956
19
Power supply cord
Lead to right 1.0m
Lead to left 0.3m
Wireless remote controller
MS-10SN MS-10SN -
INDOOR UNIT
278
58
162
C1
41
Air in
82
326 326
189
or more
7
100
Air out
78
5
67
C2
Installation plate
Indoor unit
818
850
16562956
19
Power supply cord
Lead to right 1.0m
Lead to left 0.3m
169
2.5
116.581.5
Wall hole [65
Installation plate
Liquid line [6.35-0.5m
Gas line [9.52-0.43m
{
Insulation [37 O.D
[21 I.D
Drain hose [16
(Connected part O.D)
Insulation [28
231.5
42
271 4.5
Wireless remote controller
9
320
25
43-
35-
155
90
104
74
260
10
780
500
122
40
540
320
285
255
Service panel
Gas refrigerant
pipe joint
Refrigerant pipe
(flared) [9.52 (MU-09/10SN
)
[12.7 (MU-12SN
)
Liquid refrigerant
pipe joint
Refrigerant pipe
(flared) [6.35
Airout
Air in
Air in
Service port
109
32
110
147
Drainage
3holes [33
If clearance
behind the outdoor unit
is only 400
mm
or 500
mm
side A must be fully opened.
100mm or more
100mm or more
100mm or more
350mm or more
REQUIRED SPACE
A
400mm or more
MU-09SN MU-09SN MU-10SN MU-10SN MU-12SN MU-12SN -
C1
C2
C1
C2
C1
C2
OUTDOOR UNIT
Unit: mm
10
MS-12SN MS-12SN MS-15SN MS-15SN -
INDOOR UNIT
C1
MS-17SN -
C2
MS-18SN -
C1
MS-24SN -
C2
995
C1
C1
C1
60
40
4holes 11x 20
150 648 217
Indoor unit
20
320
58
162
Wireless remote controller
MU-15SN MU-15SN MU-17SN -
C1
MU-18SN -
C2
MU-24SN -
C1
OUTDOOR UNIT
35
248
Air in
350
1015
19
450
450
352438
Installation plate
5190
Installation plate
Liquid line
Gas line
Air in
19077550
Power supply cord
Lead to right 2m
Lead to left 1m
C1
C1
20
310
345
290
Air out
REQUIRED SPACE
100mm or more
If clearance
behind the
outdoor unit is
only 400
500
must be fully
opened.
mm,
or
mm
side A
{
Insulation
Drain hose
A
500mm or more
Insulation
100mm or more
[8-0.5m
[ 12-0.43m
[ 50 O.D
[ 28 I.D
100mm or more
254
Wall hole
[
16
[
28
350mm or more
3 297
[ 75
Drainage
3holes [16.2
Air out
605
292
20
183
50
500
850
74
157
30
100
11
161
Service panel
Liquid refrigerant
pipe joint
Refrigerant pipe (flared)
o
[6.35 (MU-15/17/18SN)
30
[9.52 (MU-24SN)
o
35
Gas refrigerant
pipe joint
Refrigerant pipe (flared)
[15.88
Service port
5
SYMBOL
RT12
SR141
TB
52C
SYMBOL
MF
MV
NR11
RT11
SYMBOL
C11
F11
F12
HIC1
NAME
NAME NAME
INDOOR FAN CAPACITOR
FUSE(3.15A)
THERMAL FUSE(93:)
DC/DC CONVERTER
INDOOR FAN MOTOR(INNER FUSE)
VANE MOTOR
VARISTOR
ROOM TEMPERATURE THERMIST OR
INDOOR COIL THERMISTOR
SOLID STATE RELAY
TERMINAL BLOCK
CONTACTOR
3
2
2
3
RT12
RT11
BLK
GRY
YLW
BRN
WHT
RED
1
2
3
4
5
6
MF
F11
52C
HIC1
TRANS
NR11
C11
SR141
CN211
112
CN
CN
111
121
CN
1
3
ELECTRONIC CONTROL P.C. BOARD
TB
REMOTE
CONTROLLER
POWER MONITOR,
RECEIVER
P.C. BOARD
MV
F12
POWER
SUPPLY
CORD
1[ 220V~
60Hz
L1
L
2
1
1
2
4
3
CN201
CN
151
5
5
LD101T
GRN/YLW
BLU
WHT
BLU
BLU
BRN
BLU
BLU
BLU
C
220V~
TO OUTDOOR
UNIT
CONNECTING
BRN
GRN/YLW
FROM INDOOR
UNIT
CONNECTING
220V~
BLU
WHT
C
2
C2
TB
MF
RED
BLK
WHT
MC
C1
S
R
C
WHT
BLK
RED
SYMBOL
TB
SYMBOL
MC
MF
SYMBOL
C1
C2
NAME
NAME NAME
COMPRESSOR CAPACITOR
OUTDOOR FAN CAPACITOR
COMPRESSOR(INNER PROTECTOR)
OUTDOOR FAN MOTOR(INNER PROTECTOR)
TERMINAL BLOCK
WIRING DIAGRAM
MS-09SN MS-10SN -
C1
C1
INDOOR UNIT
MODELS WIRING DIAGRAM
NOTE:1. About the outdoor side 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
C1
C1
C1
MODELS WIRING DIAGRAM
MU-09SN MU-10SN MU-12SN -
OUTDOOR UNIT
NOTE:1. About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing.
2.Use copper conductors only. (For field wiring)
3. Symbols below indicate.
/: Terminal block
12
SG79B730H02
VG79B076H01
MS-09SN -
SYMBOL
RT12
SR141
TB
52C
SYMBOL
MF
MV
NR11
RT11
SYMBOL
C11
F11
F12
HIC1
NAME
NAME NAME
INDOOR FAN CAPACITOR
FUSE(3.15A)
THERMAL FUSE(93:)
DC/DC CONVERTER
INDOOR FAN MOTOR(INNER FUSE)
VANE MOTOR
VARISTOR
ROOM TEMPERATURE THERMIST OR
INDOOR COIL THERMISTOR
SOLID STATE RELAY
TERMINAL BLOCK
CONTACTOR
3
2
2
3
RT12
RT11
BLK
GRY
YLW
BRN
WHT
RED
1
2
3
4
5
6
MF
F11
52C
HIC1
TRANS
NR11
C11
SR141
CN211
112
CN
CN
111
121
CN
1
3
ELECTRONIC CONTROL P.C. BOARD
TB
REMOTE
CONTROLLER
POWER MONITOR,
RECEIVER
P.C. BOARD
MV
F12
POWER
SUPPLY
CORD
1[ 220V~
60Hz
L1
L
2
1
1
2
4
3
CN201
CN
151
5
5
LD101T
GRN/YLW
BLU
WHT
BLU
BLU
BRN
BLU
BLU
BLU
C
220V~
TO OUTDOOR
UNIT
CONNECTING
BRN
GRN/YLW
FROM INDOOR
UNIT
CONNECTING
220V~
BLU
WHT
C
2
C2
TB
MF
RED
BLK
WHT
MC
C1
S
R
C
WHT
BLK
RED
SYMBOL
TB
SYMBOL
MC
MF
SYMBOL
C1
C2
NAME
NAME NAME
COMPRESSOR CAPACITOR
OUTDOOR FAN CAPACITOR
COMPRESSOR(INNER PROTECTOR)
OUTDOOR FAN MOTOR(INNER PROTECTOR)
TERMINAL BLOCK
MS-10SN -
C2
C2
INDOOR UNIT
MODELS WIRING DIAGRAM
NOTE:1. About the outdoor side 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
C2
C2
C2
MODELS WIRING DIAGRAM
MU-09SN MU-10SN MU-12SN -
OUTDOOR UNIT
NOTE:1. About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing.
2.Use copper conductors only. (For field wiring)
3. Symbols below indicate.
/: Terminal block
13
SG79J520H01
VG79B176H01
MS-12SN -
SYMBOL
RT12
TB
52C
SYMBOL
IC141
MF
MV
NR11
RT11
SYMBOL
C11
DSAR
F11
F12
HIC1
NAME
NAME NAME
INDOOR FAN CAPACITOR
SURGE ABSORBER
FUSE(3.15A)
THERMAL FUSE(93:)
DC/DC CONVERTER
HYBRID IC
INDOOR FAN MOTOR(INNER FUSE)
VANE MOTOR
VARISTOR
ROOM TEMPERATURE THERMIST OR
INDOOR COIL THERMISTOR
TERMINAL BLOCK
CONTACTOR
220V~
BLU
BRN
2
60Hz
TRANS
HIC1
BRN
DSAR
GRN/YLW
LD1
REMOTE
CONTROLLER
3
1
DISPLAY
P.C.BOARD
101
CN
102
CN
151
CN
111
CN
ELECTRONIC CONTROL P.C. BOARD
4
2
1
C11
CN211
BLU
RECEIVER
P.C.BOARD
BLK
WHT
GRY
RED
RT11
MV
5
F11
33
BLU
MF
3
121
CN
CN
112
1[ 220V~
CORD
POWER
SUPPLY
TO OUTDOOR
UNIT
CONNECTING
BRN
L
L1
GRN/YLW
TB
NR11
IC141
52C
C
RT12
YLW
BRN
4
3
CN201
1
2
F12
WHT
BLU
BLU
BLU
MS-15SN -
C1
C1
INDOOR UNIT
MS-17SN -
MODELS WIRING DIAGRAM
C1
NOTE:1. About the outdoor side 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
MU-15SN MU-17SN -
OUTDOOR UNIT
C1
C1
MODELS WIRING DIAGRAM
FROM
INDOOR UNIT
CONNECTING
220V~
SYMBOL
C1
C2
NOTE:1. About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing.
2.Use copper conductors only. (For field wiring)
3. Symbols below indicate.
/: Terminal block, : Connector
COMPRESSOR CAPACITOR
OUTDOOR FAN CAPACITOR
NAME
TB
2
C
SYMBOL
MC
MF
COMPRESSOR(INNER PROTECTOR)
OUTDOOR FAN MOTOR(INNER PROTECTOR)
NAME NAME
14
WHT
BLU
C2
RED
ORN
WHT
BLU
C
C1
RED
MC
S
R
BLK
RED
1
ORN
2
WHT
3
BLK
4
SYMBOL
TB
MF
TERMINAL BLOCK
MS-12SN -
SYMBOL
RT12
TB
52C
SYMBOL
IC141
MF
MV
NR11
RT11
SYMBOL
C11
DSAR
F11
F12
HIC1
NAME
NAME NAME
INDOOR FAN CAPACITOR
SURGE ABSORBER
FUSE(3.15A)
THERMAL FUSE(93:)
DC/DC CONVERTER
HYBRID IC
INDOOR FAN MOTOR(INNER FUSE)
VANE MOTOR
VARISTOR
ROOM TEMPERATURE THERMIST OR
INDOOR COIL THERMISTOR
TERMINAL BLOCK
CONTACTOR
220V~
BLU
BRN
2
60Hz
TRANS
HIC1
BRN
DSAR
GRN/YLW
LD1
REMOTE
CONTROLLER
3
1
DISPLAY
P.C.BOARD
101
CN
102
CN
151
CN
111
CN
ELECTRONIC CONTROL P.C. BOARD
4
2
1
C11
CN211
BLU
RECEIVER
P.C.BOARD
BLK
WHT
GRY
RED
RT11
MV
5
F11
33
BLU
MF
3
121
CN
CN
112
1[ 220V~
CORD
POWER
SUPPLY
TO OUTDOOR
UNIT
CONNECTING
BRN
L
L1
GRN/YLW
TB
NR11
IC141
52C
C
RT12
YLW
BRN
4
3
CN201
1
2
F12
WHT
BLU
BLU
BLU
MS-15SN -
C2
C2
INDOOR UNIT
MS-18SN -
MODELS WIRING DIAGRAM
C1
NOTE:1. About the outdoor side 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
MU-15SN -
OUTDOOR UNIT
C2
MODELS WIRING DIAGRAM
FROM
INDOOR UNIT
CONNECTING
220V~
SYMBOL
C1
C2
NOTE:1. About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing.
2.Use copper conductors only. (For field wiring)
3. Symbols below indicate.
/: Terminal block, : Connector
NAME
COMPRESSOR CAPACITOR
OUTDOOR FAN CAPACITOR
TB
2
C
SYMBOL
MC
MF
COMPRESSOR(INNER PROTECTOR)
OUTDOOR FAN MOTOR(INNER PROTECTOR)
15
VG79B123H01
WHT
C
BLU
C1
RED
MC
S
R
BLK
C2
RED
ORN
WHT
BLU
NAME NAME
RED
1
ORN
2
WHT
3
BLK
4
SYMBOL
MF
TB
TERMINAL BLOCK
VG79B175H01
MU-18SN -
C1
OUTDOOR UNIT
FROM
INDOOR UNIT
CONNECTING
220V~
MODELS WIRING DIAGRAM
TB
2
C
WHT
BLU
C1
RED
BLK
C
MC
S
R
C2
RED
ORN
WHT
BLU
SYMBOL
C1
COMPRESSOR CAPACITOR
C2
OUTDOOR FAN CAPACITOR
NOTE:1. About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing.
2.Use copper conductors only. (For field wiring)
3. Symbols below indicate.
/: Terminal block, : Connector
NAME
SYMBOL
MC
MF
NAME NAME
COMPRESSOR(INNER PROTECTOR)
OUTDOOR FAN MOTOR(INNER PROTECTOR)
RED
1
ORN
2
WHT
3
BLK
4
SYMBOL
MF
TERMINAL BLOCK
TB
VG79B106H01
16
MS-24SN -
SYMBOL
RT12
TB
52C
SYMBOL
IC141
MF
MV
NR11
RT11
SYMBOL
C11
DSAR
F11
F12
HIC1
NAME
NAME NAME
INDOOR FAN CAPACITOR
SURGE ABSORBER
FUSE(3.15A)
THERMAL FUSE(93:)
DC/DC CONVERTER
HYBRID IC
INDOOR FAN MOTOR(INNER FUSE)
VANE MOTOR
VARISTOR
ROOM TEMPERATURE THERMIST OR
INDOOR COIL THERMISTOR
TERMINAL BLOCK
CONTACTOR
220V~
220V~
2
C
CN
151
CN
102
CN
101
3
5
MV
DISPLAY
P.C.BOARD
RECEIVER
P.C.BOARD
3
REMOTE
CONTROLLER
52C
RT12
IC141
112
CN
HIC1
NR11
TRANS
1
WHTWHT
DSAR
GRN/YLW
LD1
3
1
111
CN
ELECTRONIC CONTROLP.C. BOARD
4
2
1
C11
CN211
WHT
BLK
WHT
GRY
RED
RT11
F11
BLU
MF
3
121
CN
60Hz
1[ 220V~
CORD
POWER
SUPPLY
TO OUTDOOR
UNIT
CONNECTING
RED
3
GRN/YLW
TB
BLU
YLW
BRN
4
3
CN201
1
2
F12
BLU
BRN
BLU
BLU
C1
INDOOR UNIT
MODEL WIRING DIAGRAM
NOTE:1. About the outdoor side 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
MU-24SN -
OUTDOOR UNIT
C1
MODEL WIRING DIAGRAM
TB
2
220V~
FROM INDOOR
UNIT
CCONNECTING
220V~
SYMBOL
CR
C1
C2
NOTE:1. About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing.
2.Use copper conductors only. (For field wiring)
3. Symbols below indicate.
/: Terminal block, : Connector
CR SURGE ABSORBER
COMPRESSOR CAPACITOR
OUTDOOR FAN CAPACITOR
NAME
C
3
5
52C
1
52C
3
52C
RED
5
78
X1
RED
3
X1
1
BLU
NAME NAME
WHT
YLW
YLW
BLU
BLU
BLU
A2/b
RED
A1/a
RED
SYMBOL
MC
MF
TB
2
4
6
6
52C
GRY
CR
COMPRESSOR(INNER PROTECTOR)
OUTDOOR FAN MOTOR(INNER PROTECTOR)
TERMINAL BLOCK
17
C2
26F1
WHT
1
2
3
4
5
RED
ORN
WHT
BLK
MF
RED
ORN
WHT
BLK
YLW YLW
6
X1
26F1
52C
FAN MOTOR RELAY
THERMOSTAT(AIRFLOW CONTROL)
CONTACTOR
SYMBOL
RED
C
MC
RS
BLK
C1
6
REFRIGERANT SYSTEM DIAGRAM
MS-09SN MS-09SN -
INDOOR UNIT
Indoor
heat
exchanger
Room temperature
thermistor
RT11
C1
C2
Indoor coil
thermistor
RT12
Refrigerant pipe [9.52
(Option)
(with heat insulator)
Flared connection
Flared connection
Stop valve
(with service port)
Stop valve
Compressor
Unit:mm
MU-09SN MU-09SN -
C1
C2
OUTDOOR UNIT
Outdoor
heat
exchanger
Strainer
MS-10SN MS-10SN -
INDOOR UNIT
Indoor
heat
exchanger
Room temperature
thermistor
RT11
C1
C2
Indoor coil
thermistor
RT12
Refrigerant pipe [6.35
(Option)
(with heat insulator)
Refrigerant pipe [9.52
(Option)
(with heat insulator)
Flared connection
Flared connection
Stop valve
(with service port)
Capillary tube
[3.0x[1.4x600
Compressor
Refrigerant flow in cooling
Unit:mm
MU-10SN MU-10SN -
C1
C2
OUTDOOR UNIT
Outdoor
heat
exchanger
Refrigerant pipe [6.35
(Option)
(with heat insulator)
Stop valve
18
Strainer
Capillary tube
[3.0x[1.6x900
Refrigerant flow in cooling
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