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CIRCUIT DIAGRAM
INDOOR UNIT
OUTDOOR UNIT
Model :
MW18Y3F / MR18Y3F
2006.02.20 4
RED
WHITE
BLACK
RED
WHITE
BLACK
RED
BLACK
WHITE
YELLOW
BLUE
RED
BROWN
BLUE
ORANGE
YELLOW
WHITE
BLACK
BLACK
WHITE
RED
YELLOW
YELLOW
BLACK
BLACK
BROWN
BROWN
BLACK
BLACK
WHITE
WHITE
RED
BLACK
BLACK
BLACK
BLACK
GREEN
CN71
W10
W11
W7
W9
W8
CN801
W4
W2
W1
W3
CN40
CN30
CN70
1
5
4
3
2
6
1
5
4
3
2
6
1
5
4
3
2
6
1
5
4
3
2
1
3
2
1
3
2
6
1
4
3
2
1
4
3
2
1
3
2
1
3
2
1
3
2
1
3
2
2
2
1
1
5
(N)
4
(L)
3
2
1
FUSE
5A-250V
TO INDOOR UNIT
POWER SUPPLY
G
TERMINAL
FUSE 20A-250V
PIPE TEMP. THERMISTOR
DISCHARGE PIPE TEMP. THERMISTOR
OUTDOOR TEMP. THERMISTOR
REACTOR
FAN MOTOR
COMPRESSOR
EXPANSION VALVE
4-WAY VALVE
4WV
E V
F M
C M
S(S)
C(T)
R(R)
CONTROLLER PCB ASSY
ORANGE
RED
YELLOW
PINK
BLUE
BLACK
BLACK
BLACK
BLACK
YELLOW
BLUE
WHITE
BLACK
RED
RED
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
GRAY
GRAY
WHITE
BLACK
RED
GREEN /
YELLOW
G
321
1
6
5
4
3
2
1
6
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
6
5
4
3
2
7 7 7
1
2
1
2
1
3
2
1
3
2
CN1
CN7
CN5 CN6 CN2
CN3
CN10
CN201
W1
W3
W2
THERMAL FUSE
102
TERMINAL
TO OUTDOOR UNIT
VARISTOR
FUSE
3.15A
FAN MOTOR
STEP MOTOR
PIPE TEMPERATURE
THERMISTOR
ROOM TEMPERATURE
THERMISTOR
SW
POWER CIRCUIT
FM
M
CONTROLLER PCB ASSY
INDICATOR PCB ASSY