MODEL 51240B/53540B/53640B/61240B/63540B/63640B
29
individually.
In the series and parallel water treatment system (Second grade Na+
Exchanger or RO pre-treatment system), it ensures only one valve in
regeneration or washing cycle and there is water in service. Refer to Figure
3-9
Note: 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 system.
C. Pressure Relief Output
Runxin valve will cut off feeding water to drain line when it switches in
regeneration 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 rising too fast to
damage the valve. Pressure Relief Output can be used to avoid this
problem. The wiring refers to Figure3-10.
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