MODEL F73（17603）
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4) Control Inlet Booster Pump (Set b-01 or b-02)
Instruction: If inlet water pressure is less than 0.15MPa, which makes
rinse drawing difficult, a booster pump is suggested to be installed on
inlet. Control mode b-01. When system in regeneration cycle, booster
pump is open, the wiring refer to Figure 3-7. If the booster pump current
is bigger than 5A, system need to install an contactor, the wiring refer to
Figure3-8.
B. 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 refer to Figure 3-9.
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