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14
2. WIRING DIAGRAM
2-1. Indoor Unit
2-1-1. 4-way Air Discharge Cassette Type
Model: MMU-AP0091H, AP0121H, AP0151H, AP0181H, AP0241H,
MMU-AP0271H, AP0301H, AP0361H, AP0481H, AP0561H
CN104
(YEL)
CN102
(RED)
CN101
(BLK)
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5 6
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5 6
6 4 3 1 2 5
6 4 3 1 2 5
3 1
321
CN34
(RED)
FS
CN33
(WHI)
CN82
(BLU)
5 4 3 2 1
5 4 3 2 1
CN334
(BLU)
DC20V
CN333
(WHI)
CN68
(BLU)
CN304
(GRY)
CN66
(WHI)
CN44
(BLN)
CN67
(BLK)
LM1
PMV
Indoor control P.C. board
MCC-1402
1
2
1
2
TA
1
2
1
2
TCJ
1
2
1
2
TC2
CN100
(BRN)
1
2
1
2
33
CN80
(GRN)
PNL
EXCT
1
2
CN73
(RED)
1
2
Filter input
(Option)
(Fandrive)
CN70
(WHI)
CN20
(BLU)
1
2
3
TC1
1 2 3 4 5
1 2 3 4 5
LM2
1 2 3 4 5
CN81
(BLK)
CN60
(WHI)
CN32
(WHI)
CN61
(YEL)
CN50
(WHI)
CN40
(BLU)
T10
1 2 3 4 5
1 2
1 2
3 4 5 6
1 2 3 4 51 2 3
CN309
(YEL)
1 2 3
1 2 3
1 2
1 2
CN41
(BLU)
1 2 3
1 2 3
4 5 6
RY302
RY303
1
2
3
1
2
3
1
2
3
1
2
3
1
2
1
2
1
2
3
~
+
~
Fuse
T6.3A
250V~
Fuse
T3.15A
250V~
DC15V
DC12V
DC7V
P301
BLK
RED
WHI
WHI
RED
S(N)R(L)
Power supply
Single phase
220-240V 50Hz
220V 60Hz
Indoor unit
Earth screw
DM
FM
Power
supply
circuit
Motor drive
circuit
Parts name
Fan motor
Indoor temp sensor
Temp sensor
Temp sensor
Temp sensor
Louver motor
Drain pump motor
Float switch
Drain control relay
Pulse Motor Valve
Color identification
RED : RED
WHI : WHITE
YEL : YELLOW
BLU : BLUE
BRN : BROWN
BLK : BLACK
GRY : GRAY
PNK : PINK
ORN : ORANGE
GRN : GREEN
Closed end
connector
CN01
(WHI)
CN02
(BLU)
Adaptor for wireless
remote controller
CN03
(RED)
Network adaptor
(Option)
1 2
1 2
1 2
1 2
1 2
1 2
X Y
3 3
2 2
1 1
Wired remote
controller
1 2
BAU
2
1 2
CN1
(WHI)
CN001
(WHI)
WHI
Outdoor unit
BLK WHI BLK
BLK
BLU
BLU
BLK
BLK
TR
WHI
U
1
U
2
U
1
Network
adaptor
P.C. board
MCC-1401
Symbol
FM
TA
TC1
TCJ
TC2
LM1, LM2
DM
FS
RY302
PMV
Flow selector
unit earth
screw
1. indicates the terminal block, letter at inside
indicates the terminal number.
2. A dotted line and broken line indicate the wiring at site.
3. indicates the control P.C. board.