MODEL F71B/F71G/F67C/F67G/N75A/N75B
21
Function:
When inlet pressure is high, install a solenoid valve on inlet to
ensure valve switching properly. When valve is exactly at position of
Service, Backwash, and Fast Rinse, solenoid valve is open. When valve
is switching, solenoid valve is closed, no water flow into valve to ensure
valve switching properly. It could prevent the problem of mix water and
water hammer.
Use interlock cable to realize valves in parallel and series in same
system which is suited for RO pretreatment system or second grade Na
+
system. The Wiring refer to Figure 3-5:
2） Liquid Level Controller controls Inlet Pump( Two-phase motor)( Set
b-01)
Instruction: For the system using well or middle-tank supplying water,
switch of liquid level controller and valve together control pump opening
or closing. The wiring refer to Figure 3-6
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