Ispring RCCP Series Installation Instructions & User Manual page 9

How the Booster Pump and RO System Work
1
Initial Filtration: Source water enters the system, passing through pre- lters in stages 1,
2, and 3. The Low-Pressure Switch, positioned between the pre- lters, activates when
incoming water pressure reaches at least 6 psi.
2
Water Flow and Boosting: When both
the Low-Pressure and High-Pressure
Switches are on, the Feed Water
Solenoid Valve opens, allowing water to
ow to the Booster Pump. The Booster
Pump then pressurizes the water to
approximately 135 psi as it enters the
RO membrane housing.
3 Pressure Control: The High-Pressure
Switch activates when the pressure in
the storage tank falls below 20 psi and
deactivates at 45 psi, which indicates
the tank is full.
Membrane Filtration: The RO membrane
4
divides the water into two streams:
puri ed water and wastewater. Puri ed
water is pushed
membrane's 0.0001-micron pores and
exits through a one-way Check Valve on
the pure water port. Wastewater ows to the drain line, where a ow restriction regulates
the out ow to maintain system pressure.
Storage Tank: Pure water is routed to the pressurized storage tank. As the tank lls, the
5
pressure rises. When the pressure reaches 45 psi, the High-Pressure Switch deactivates,
shutting o both the Booster Pump and the system.
Water Dispensing: Opening the RO faucet allows water to ow from the tank through the
6
FT15 post-carbon lter and out of the faucet. As the water is dispensed, tank pressure
gradually decreases, reactivating the High-Pressure Switch to re ll the tank.
Faucet
through the
AK / UV
AHP
Purified
Water
RO MEMBRANE
Drain Water
ASOF
PUMP
ASOW
Tank
Drain Saddle
ALP
Source
Water
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