Runxin 17603 - PC Board Functions and Connections

MODEL F73（17603）
20
3.2. The Function and Connection of PC Board
Open the front cover of control valve, you will see the main control board
and connection port as Figure 3-1:
The main functions on main control board:
Function
Application
Explanation
Signal
output
connector
b-01
Outlet solenoid
valve
To strictly require no hard water flow
from outlet or controlling the liquid level
in water tank.
Inlet pump
Increase pressure for regeneration or
washing.
Use the liquid level controller to control
inlet pump to ensure there is water in
tank.
Signal
output
connector
b-02
Inlet solenoid valve
or inlet pump
When inlet pressure is high, it needs to
close water inlet when valve is rotating
to protect motor.
Pressure
relief
connector
Control the inlet
bypass to release
pressure
When valve is rotating, pressure relief
connector opened to prevent pressure
increasing rapidly.