AEC TK Series Cooling Tower Water Treatment Systems - Manual (Page 14)

14
TK SERIES
AEC, INC.
MAINTENANCE
DAILY
1) Release trapped air in the sand filter through the air release valve located on the top
of the sand filter lid. Placing the clear tubing in a bucket or to a drain, open the air
release valve a 1/4 turn, allowing the air to be purged from the filter chamber. Once
the air has been purged, close the air release valve.
2) Inspect the pump strainer basket and the in-line strainer assemblies for any
foreign material. If cleaning is necessary, turn system off, close pump feed supply
valve, the reaction column flow adjustment and isolation valve(s) and the flow
bypass valve. Release pressure from the filter by opening the air release valve.
¾ Strainer Basket Cleaning requires removing strainer lid. Clean basket, replace
basket and lid following recommended safety procedures, and restart system
following the Start-up Procedure.
¾ In order to clean the In-Line Strainer Assembly, close the column isolation
valve and the column flow control valve. Remove the screen and clean it. After
cleaning the screen, make sure the gasket is in place when replacing the bowl
and screen. Open the column isolation valve, turn pump on and readjust the flow
control valve.
3) Observe flow of media in the reaction column to insure proper up-flow movement of
the media bed. Observe flow rate as indicated on the flow indication sticker on the
column,
4) Check all plumbing connections for leaks.
Monthly
Send water sample to: AEC Laboratory Services
801 AEC Drive
Wood Dale IL 60191