SpectraPure
®
SpectraPure
®
Inc.
480.894.5437 Call us toll-free 1.800.685.2783
2167 East Fifth St, Tempe, Arizona 85281
16
THE MANUAL FLUSH VALVE (-MF Versions):
The Manual Flush Valve is located in parallel with the flow restrictor (see
page 11) and, when opened, provides a high-flow bypass of waste water
used to purge concentrated brine from the membrane housing and rapidly
flush any particulates from the membrane surface. This is especially useful
in hard-water conditions. The valve can be turned ON for 30 seconds at
the start of a fill cycle and/or at the end of a fill cycle. BE SURE to turn the
Flush Valve OFF before making product water.
An optional Booster Pump can be added for installations with less than 40
psi tap water pressure. Be sure to use the BPHF-MF-115 Booster Pump Kit.
THE AUTOMATIC FLUSH VALVE (-AF Versions):
The Automatic Flush Valve is located in parallel with the flow restrictor
and, when electrically activated, provides a high flow by-pass of waste
water used to purge concentrated brine from the membrane housing and
rapidly flush any particulates from the membrane surface. This is especially
useful in hard water conditions. A Pressure Switch and Flush Control
Module (AFC) will activate the Flush Valve at the start of a fill cycle, at the
end of a fill cycle, and for a short time every hour during the fill cycle. This
module is powered by a 24VDC power supply. An optional Booster Pump
can be added for installations with less than 40 psi tap water pressure.
Only use a power supply rated at 24VDC, 2.5A that comes with the Booster
Pump Kit (BPHF-AF-115). Connect the Pump to the black/black wires on
the AFC Module.
BOOSTER PUMP INSTALLATION (Both Versions):
If needed, install the Booster Pump on the black tap water feed line. Be
sure the arrow on the pump head is in the direction of the flow. Replace
the small black power supply (-AF Systems) with the larger black power
supply provided with the Booster Pump Kit. Connect the remaining free
wires and connector on the AFC module to the pump. Systems with
25- and 40-GPD RO membranes should first consider upgrading to the
90-GPD membrane before aquiring the Booster Pump.
Notice:
Drinking water add-on kits and bladder tanks are
not compatible with Automatic Flush (AF) systems.
