- Low Pressure Switch
Should be installed
after the sediment filter and before
Inlet Solenoid and Pump. Uses
a micro switch to signal when inlet
pressure is below 5psi. Used
to prevent the system from continuous
operation that can happen when the water
supply is stopped. Without the LPS,
if the inlet supply is interrupted the
system will continue to operate because
the storage tank will not fill (not making water)
and therefore not provide an 'OFF' signal for the system.
- Inlet Solenoid
- The Inlet, or Main Solenoid opens at start
of filtration cycle and closes at end of
- Pressure Boost Pump
- Used in areas where the source water pressure
is below 50psi. The Pressure Boost Pump
provides a constant 70+psi for optimum membrane
performance. Pump model varies depending
on membrane specification.
- Controller (PCB)
- The PCB Controller integrates all
the electronic functions of the system.
It operates the system based
on two sensor inputs, typically the
Low Pressure Switch and Level Sensor.
Based on signals from these
two sensors, the PCB opens and closes
the Inlet Solenoid and Auto Flush
Solenoid, and starts and stops the
Pressure Boost Pump.
- Float Level Sensor
- In the case of an atmospheric tank,
a level sensor must be used to indicate
tank level to start and stop the system
operation. Float Level Sensors
are available in side mount or vertical
mount. Vertical mount can be
either Dual or Single Float.
- Auto Flush Solenoid
- The Auto Flush Solenoid is controlled
either by the PCB or the Auto Flush
Circuit. When the solenoid is
closed the brine passes through an
orifice that is sized according to
the membrane specification which restricts
the brine flow for normal operation.
At the beginning of each filtration
cycle, the Solenoid will open allowing
free brine flow to flush the membrane