7
2.3 Wiring Diagram
4MXC2309BF0W0AA 4MXC2312BF0W0AA 4MXC2318BF0W0AA (Manufactured before 6th May, 2021)
TO OUT DOOR
B:BLACK
R:RED
W:WHITE
Y/G:YELLOW/GREEN
TEMP
.
SENSOR
ROOM
SENSOR
FLOA
T
SWITCH
DRAIN
PUMP
CN9
CN1
CN6
INFRARED REMOTE RECEIVER
CN4
CN11
CN19
CN3
ON
CN21
T5A/250VAC
FUSE
BM3
2
1
3
B
W
R
Y/G
NOTE1.DASHED PARTS ARE OPTIONAL.
2.USERS SHOULD NOT SET BM1 AND BM3.
CH1
OFF
CN16
TEMP
.
PIPING
DC F
AN
ROOMCARD
WIFI MODULE
WIRED
CONTROLLER
B
A C
B
A C
87654321
ON
BM1
OFF
87654321
N
CN10
FRESH AIR MOTOR/ EXTERNAL ALARM OUTPUT
(Contact rating 230VAC 3A)
CN14
CN29
CN7
INFRARED REMOTE RECEIVER
CN1
CN2
CN3
CN4
LOUVER STEP MOTOR
L
(BL)
BL:BLUE
(Y)
Y:YELLOW
(W)
(R)
(W)
(B)
(W)
(W)
(W)
(W)
(BL)
(R)
(W)
(W)
(W)
（W）
（B）