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WFS 1545 Operations Manual
3.
RECIRCULATING CIRUIT
Filling the Internal Recirculating Circuit involves filling the reservoir to the proper level in both
chambers. It also includes filling and bleeding air out of three filter housings. As the filter housings
get filled the reservoir level will go down below the safe to run limit (Red Line). Pump # 1 must be
stopped while the reservoir refills to the nominal operating level (Blue Line)
I.
Close all of the air bleed valves on top of the filter housings.
II.
Remove the reservoir cover so water level can be observed.
III.
Open the ball valve for the make-up water. The reservoir should begin to fill with water. The
water should stop filling when the level in the Dirty Side reaches the blue line. The Clean
Side will remain empty for the time being.
IV.
Once the water level in the reservoir reaches the fill level, turn Power Selector Switch to
“ON” position
V.
Press Reset Push Button. Blue Control Power indicating light should come on.
VI.
While someone observes the pump rotation “jog” Pump 1 for two seconds. (i.e., depress the
Pump 1 Start Push Button, then the Pump 1 Stop Push Button.) Verify that the rotation of
the pump is in the direction indicated on the pump housing. If the pump rotation is not
correct, have a qualified electrician correct the wiring on the incoming line as indicated in
the note below.
WARNING!
Pump Rotation. To be performed by qualified personnel only.
If the pump rotation is in the wrong direction turn off all electrical power to the WFS from the
source. Verify that there is no electrical power in the control cabinet. Switch any two (2) incoming
power wires at the connection terminals.
DO NOT
switch the motor connections at the motor or to any individual motor. All pumps and chiller
are synchronized. Once the power phases for Pump 1 are correct all other motors will be correct.
VII.
Start the pump and observe the water in the chamber. Stop the pump when the water
drops to 6 inches (152 mm) from the bottom. Allow reservoir chamber to fill.
CAUTION:
Use caution to avoid allowing water level to sink too low. Stop pump if there is any indication that
air is getting into the pump inlet.
Air Bleed
Valves
