Haier SYJS-0308 Service Manual page 45

MP3 wiring diagram:
Electronic expansion valve wiring diagram
indoor 1
NOTE：
Valve box power supply and communication wire must be connected with the corresponding
indoor,wiring sequence must be correspondent respectively,L and N must not be connected
reversely,otherwise will cause the unit not work and damaged.
On running, "indoor 1" must be electrified always,or air conditioner does not work normally.
electronic
expansion
valve 3
M
EEV 2
M
EER 1
M
black
white
brown
black
FUSE T3.15A/250VAC
CN1 live wire 1
CN2 neutral wire 1
CN3 COM1 control board
live wire 2 CN4
neutral wire 2
CN5
COM2 CN6
CN15 valve 3
CN14 valve 2
CN13 valve 1
6 5 2 1
4 3
black
white
white
brown
brown
indoor 2
CN7 live wire 3
CN8 neutral wire 3
CN9 COM3
SERIAL
1 2
CN16
CN10
CN11
CN12
yellow／green
indoor 3