MODEL F71B/F71G/F67C/F67G/N75A/N75B
24
B. Interlock
Instruction: In the parallel water treatment system, it ensure only one
valve in regeneration or rinsing cycle and (n-1) valves in service, that is,
realizing the function of supplying water simultaneously and
regenerating individually.
In the series and parallel water treatment system(Second grade Na+
Exchanger or RO pre-treatment system), it ensure only one valve in
regeneration or washing cycle and there is/are water(s) in service. The
wiring refer to figure 3-10
Use interlock cable to connect CN8 to CN7 on next valve in the loop.
One system with several valves, if interlock cable is disconnected,
the system is divided into two individual systems.
C. Pressure Relief Output
Runxin valve will cut off feeding water to drain line when it switches
in rinsing cycles. Thus in some water treatment system, e.g. Deep Well,
one booster pump was installed on the inlet to increase the system water
feeding pressure, this cut-off will cause pressure on inlet rinsing too fast
to damage the valve. Pressure Relief Output can be used to avoid this
problem. The wiring refer to Figure3-11
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