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4-1. Indoor Unit
4-1-1. Compact 4-way Cassette Type
FS
5 5
4 4
LM1
3 3
2 2
1 1
5 5
5 5
4 4
4 4
LM2
3 3
3 3
2 2
2 2
1 1
1 1
FM
NOTE
FM
: Fan motor
TA
: Indoor temp. sensor
TC
: Temp. sensor
TCJ
: Temp. sensor
LM1,LM2
: Louver motor
DP
: Drain pump motor
FS
: Float switch
RY302
: Drain control relay
4. WIRING DIAGRAM
TA
TCJ
1 2
1 2
1 2
1 2
CN34
(RED)
CN104
CN102
(YEL)
(RED)
3 3
2 2
1 1
MCC-1402
CN33
Control P.C. Board for
(WHI)
5 5
Indoor Unit
4 4
3 3
2 2
1 1
CN333
(WHI)
5 5
Motor
4 4
drive
3 3
2 2
circuit
1 1
CN334
(WHI)
1 1
2 2
3 3
4 4
5 5
RY
RY
302
303
1
2
3
1
2
3
CN68
(BLU)
1
2
3
CN304
(GRY)
DP
TC
1 2
(EXCT)
1 2
1 2 3
1 2
1 2
CN101
CN80
CN73
CN70
(BLK)
(GRN)
(RED)
(WHI)
DC20V
DC15V
DC12V
DC7V
Power
supply
circuit
Fuse
F302
T3.15A
250V~
+
–
~
~
Fuse
F301
250V~
P301
T6.3A
1
2
3
4
5
1 2
CN67
BLK
1
2
3
4
5
CN66
(BLK)
(WHI)
RED WHI BLK
1
2
3
Indoor unit
earth screw
1
2
3
Outdoor unit
earth screw
Serial
L
N
signal
Single phase
220 to 240V
50Hz
– 21 –
Connection interface (option)
CN50
CN51
(WHI)
(RED)
5
5
5
5
4
4
4
4
P.C.
3
3
3
3
Board
2
2
2
2
1
1
1
1
1 2
CN40
(BLU)
6
1 2
5
CN60
4
(WHI)
U3
U4
3
2
Terminal for
central remote
1
controller
CN32
2
(WHI)
1
(FAN DRIVE)
6
5
4
CN61
3
(YEL)
2
1
BLK
2 2
1 1
WHI
Adapter for
3
Wireless Remote
CN309
2
Controller
(YEL)
1
BLK
BLK
3
3
B
B
2 2
WHI
A
A
1 1
WHI
CN41
(BLU)
Wired Renote
Controller
Color
Identification
BLK
:
BLACK
BLU
:
BLUE
RED
:
RED
GRY
:
GRAY
PNK
:
PINK
GRN
:
GREEN
WHI
:
WHITE
BRN
:
BROWN
ORN
:
ORANGE
YEL
:
YELLOW
CN001
(WHI)
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Troubleshooting
