MODEL F71B/F71G/F67C/F67G/N75A/N75B
19
The main functions on main control board:
Signal output
connector b-01
If system strictly require no hard
water flow from outlet or
controlling the liquid level in
water tank.
Increase pressure for
regeneration or rinsing.
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
by-pass to
release pressure
When valve is rotating,
pressure relief connector
opened to prevent pressure
increasing rapidly.
To ensure only
one control valve
regeneration or
rinsing in system.
Use in RO Pre-treatment, water
supply together but
regeneration in turn. Second
grade ion exchange equipment,
etc.
Remote handling
connector
Receipt signal to
make the control
rotate to next
circle
It is used for on-line inspection
system, PC connection, and
realize automatically or remote
controlling valve.
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