Purclean PURWATER RECLAIM 3.0, Technical Manual, Page: 42 / 97

Corporate
800.882.8854
42
Recirculation Valve
The 2” Recirculation or “Recirc” Motorized Ball
Valve is located high on the system plumbing
and is controlled by the PLC . It closes when the
Reclaim is running in Auto and a wash signal
is not present. That way, when the system is
recirculating water, it is running through one
or two cyclones only depending on the system
model. This keeps the pressure up in order for the
cyclone to spin out solids It also closes in prime
mode to provide backpressure to help activate
the pressure switch. The valve opens on a wash
activation circulating water to all of the cyclonic
seperators. This valve is equipped with a position
switch to indicate to the PLC if it is open or
closed. (There is no recirc valve on the PW050 or
PW100.) If the position switch detects an error, a
minor fault will display on the touch screen. There
is a viewport on the valve that also gives a status
indication showing Green when open and Red
when closed. This is also true with the underflow
flush valve which opens only when the Reclaim is
in the OFF mode.
U/F Flush Valve
The 1” Underflow Flush or U/F Flush valve is
located on the bottom of the cyclone manifold
section to remove solids spun downward by the
cyclonic action. It is controlled by the PLC and
opens once daily at 2am to flush out the cyclones.
The pump ramps up in speed during this flush
period. A manual flush of the cyclones can also
be done from the touch screen. The purpose of
this daily flush is to keep solids from backing up at
the bottom of the cyclones and hardening creating
a blockage.
There is a viewport on the valve that
gives a status indication showing Green when
open and Red when closed similar to the Recirc
Valve. The Gen 3 Reclaim Systems have two
different plumbing configurations depending on
the Reclaim model. Pictures on the right illustrate
the two different U/F valve plumbing layouts.
NOTE: Regardless of size, the U/F valve,
despite being a ball valve has a 5/32” hole
drilled in it as an orifice. Water should be
coming through the orifice when the ball valve
is closed. See picture to the right
Key Plumbing System Component Overview (cont.)
Open Closed
PW100 U/F Valve Plumbing
PW200 & Larger U/F Valve Plumbing