AEC TK Series Cooling Tower Water Treatment Systems - Manual (Page 12)

12
TK SERIES
FILTER START UP PROCEDURE
(Flooded Suction Installations)
• Close the reaction column(s) flow control valve(s) and completely open “bypass to
reservoir” valve.
• Place the clear plastic drain hose from the high flow air relief valve, in a drain or
bucket.
• Open the isolation valve from the reservoir. Open high flow air relief valve at the top
of the filter chamber by turning it ¼ turn to its full open position. Allow air to escape
from the filter chamber until water flows from the air relief valve. Close the air relief
valve.
• Check all fittings for leaks.
Note: Insure that the strainer basket is full of water before attempting to start
pump motor. Running the pump without water in the basket will cause failure
of the pump seals.
• Make sure pump on/off switch is in the off position, Turn main disconnect switch to
the on position.
• Turn pump on/off quickly to check for proper pump motor rotation according on the
arrow on the pump. Correct if necessary.
• After verifying pump motor rotation, turn the system panel switch on and allow the
pump to run.
• Open high flow air relief valve once again until you achieve a steady stream of
water. Close the valve.
• Press manual backwash button on the control panel.
The following sequence will occur:
Pump will pause for 30 seconds while the two automatic valves rotate 180°.
Note: Valves must rotate simultaneously in the same direction. If they do
not, check the toggle switches on the valve motor housings to insure that
both switches are in the ON1 position.
Pump will restart and run for 3 minutes. During this time, check the discharge
from the filter to the drain.
Pump will then shut down for 30 seconds while the valves return to the run
position.
After a brief time delay the pump will restart.
Check the backwash counter to insure that the number has increased by one.
• The filter is now operational.