9
7-4 E-magnetic valve
Operating principle
Inspection method
The bistable two way T-piece e-magnetic
valve is under the control of the pulse
generator that outputs semi-wave DC pulse
power to scan the coils once every 30s~60s
with 4~10 pluse semi-waves.
The e-magnetic will reverse with changing
pluse direction.
Entrance
Exit 1
Exit 2
Connect the appliance to power, press
TEST key on the PCB:
If pressing RF , the gateway is from
Entrance to Exit 2;
If pressing FF , the gateway is from
Entrance to Exit 1.
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