Electronic Expansion Valve Wiring Diagram - Haier H-MRV Series Service Manual

EEV 2
EEV 1
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.
When the system is equipped with MP2, the installer should use the corresponding two-way
electronic expansion valve communication wiring and its driver port.

Electronic expansion valve wiring diagram

electronic
expansion
valve 3
M
CN15 valve 3
M
M
black
white
brown
black
>a__WcU[S^ <[c >a`V[e[a`Wc
FUSE T3.15A/250VAC
CN1 live wire 1
CN2 neutral wire 1
control board
CN3 COM1
live wire 2 CN4
neutral wire 2
CN5
COM2 CN6
CN14 valve 2
CN13 valve 1
6 5 2 1
4 3
black
white
white
brown
brown
indoor 2
-116-
CN7 live wire 3
CN8 neutral wire 3
CN9 COM3
SERIAL
1 2
CN16
CN10
CN11
CN12
yellow green
／
indoor 3