MODEL：F67Q/F71Q/F68Q/F69Q/F116Q/F117Q
29
Function:
When inlet pressure is high, install a solenoid valve on inlet to ensure
valve switching properly. When valve is exactly in status of Service, Backwash,
Brine & Slow Rinse, Fast Rinse and Brine Refill, solenoid valve is open. When
valve is switching, solenoid valve is closed, no water flows into valve to ensure
valve switching properly. It could prevent the problem of mixing water and
water hammer.
Use interlock cable to realize valves in parallel or series connection in the
same system which is suited for RO pretreatment system or second grade Na
+
system. The wiring refers to Figure 3-4:
2） Liquid Level Controller Controls Inlet Pump (Two-phase motor) (Set as
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 refers to Figure 3-5:
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