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WFS 1545 Operations Manual
Side may overflow into the Clean Side when the system is shut down. Allow Pump 1 to
run for 3-5 minutes to assure that the water in the Clean Side is properly filtered.
b.
Start Pump 2
This will start the Process Cooling loop. The water level in both the Clean Side and Dirty
may drop and the cascading may also stop for a few seconds. Within a few seconds the
Lift Station should begin to return Process Water back to the Dirty Side chamber.
c.
Start Chiller
The cooling fan will start up immediately and the RANCO controller will illuminate and
display current settings. After a few seconds the condensing pump will start up and
start cooling water for the Process loop.
4)
SHUT-DOWN
The chiller and all pumps can be started or stopped by depressing the appropriately marked
push button. All start push buttons are green and all stop push buttons are red.
a.
Stop the chiller
b.
Stop Pump 2
The Lift Station is controlled by an automated float sensor and can continue to return water
to the Dirty Side reservoir for a period of time. This may cause the Dirty Side to overflow.
The Lift Station will stop automaticity shortly after Pump 2 is stopped.
c.
Stop Pump 1
d.
Close Make-Up Water ball valve
We recommend closing the make-up water ball valve when the system is not in use. This is
to prevent accidental overfilling in the event of a leaking float valve.
5)
FILTER PRESSURE GAUGES
Pressure gauges are provided on every filter housing. By monitoring the pressure readings it is
possible to determine when the filter elements should be changed.
6)
BYPASS VALVE
The pressure readings on the gauges associated with final process filter housings read the back
pressure for the complete process loop. To acquire an accurate indication of the filter condition the
bypass valve must be opened by turning the valve handle clockwise. This will temporarily take the
process loop offline as it diverts the process water directly back to the Dirty Side chamber. It is not
necessary to close any facility interface ball valves
