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WFS 101545 Operations Manual
It is anticipated that the customer will utilize two (2) ionic exchange resin beds and one activated
carbon vessel. (Collectively these are all referred to as resin beds or resin tanks unless specifically
speaking about the activated carbon filter)
g.
Resin Tank Gages
There are two gauges associated with each resin tank. By subtracting the high pressure reading
(discharge side) from the lower pressure (in-let side) a delta pressure reading is obtained. This delta
pressure is the actual pressure drop through the resin tank and indicates the condition of the resin
bed.
h.
Resin Tank Change-Out
The customer supplied resin tanks can be changed out without interruption to the process. Two (2)
resistivity sensors provide indication when a particular resin bed has reached end of life and
requires change-out.
Changing out a particular resin tank is accomplished by first bringing the stand-by unit online and
then taking the active unit offline.
Use caution to avoid water splashing onto the base structure. If the leak detecting strip gets wet all
of the pumps and chiller will stop.
SECTION II COMMISSIONING
COMMISSIONING
Commissioning the system after all of the proper connections and set-up have been completed
consists primarily of filling the system including all plumbing lines and filter housings with water
and bleeding air from the filter housings. This is accomplished in the following steps:
Filling the Internal Circulating Loop
Filling the Process Water Circuit
Filling the Lift Station
Filling the Spindle Water Circuit
Each of these steps listed below is an iterative process requiring starting and stopping the various
pumps several times while maintaining sufficient water level to prevent pump cavitation.
NOTE: Because of the low flow capacity of the auto-fill valves it is helpful to have a second source
of water to manually maintain reservoir level during commissioning.
1.
COMMISIONING PREREQUISITES
Verify and check the following:
Proper filter elements have been installed in the filter housings and the cover has been
properly secured.
Close the ball valves for the four (4) facility plumbing connections to the WFS Unit.
Leave the water make-up valves open.
All plumbing connections to process and lift station are complete.
