Cooling Tower Maintenance Checklist Page 2
ADVERTISEMENT
1
2Operation and Maintenance Instructions
MAINTENANCE CHECKLIST
(continued)
OPTIONAL ACCESSORIES:
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
7.
Heater Controller – Inspect controller and
clean probe ends – quarterly
8.
Heater – Inspect junction box for loose wiring
and moisture – one month after start-up and
semi-annually
9.
Heater – Inspect elements for scale
build-up – quarterly
10. Electronic Water Level Controller – Inspect
junction box for loose wiring and moisture –
semi-annually
11. Electronic Water Level Controller – Clean
probe ends of scale build-up – quarterly
12. Electronic Water Level Controller –Clean
inside the standpipe – annually
13. Solenoid Make-up Valve – Inspect and clean
valve of debris – as needed
14. Vibration Switch (mechanical) – Inspect
enclosure for loose wiring and moisture –
one month after start-up and monthly
15. Vibration Switch – Adjust the sensitivity –
during start-up and annually
16. Sump Sweeper Piping – Inspect and clean
piping of debris – semi-annually
17. Water Level Indicator – Inspect and clean –
annually
DURING IDLE PERIODS:
1.
Two or More Days: Energize motor space heaters
– or run motors for 10 minutes twice daily
2.
Few Weeks: Run gear reducer for 5 minutes
– weekly
3.
Several Weeks: Completely fill gear reducer
with oil. Drain to normal level prior to running.
4.
One Month or longer: Rotate motor shaft/fan
10 turns – bi-weekly
5.
One Month or longer: Megger test motor
windings – semi-annually
Seasonal Shut-Down Checklist
When the system is to be shut down for an extended period of time, the following services should be performed.
1.
The evaporative cooling unit cold water basin should be drained.
2.
The cold water basin should be flushed and cleaned with the suction strainer screens in place.
3.
The suction strainer screens should be cleaned and re-installed.
4.
The cold water basin drain should be left open.
5.
The fan shaft bearings and motor base adjusting screws should be lubricated. This should also be performed if the unit is
going to sit idle prior to start up.
6.
The water make up valve needs to be closed. All water make-up, overflow and drain piping needs to be drained, if not
heat traced and insulated.
7.
The finish of the unit should be inspected. Clean and refinish as required.
8.
The fan bearings and motor bearings need to be turned at least once a month by hand. This can be accomplished by
making sure the unit#s disconnect is locked and tagged out, and grasping the fan assembly, rotating it several turns.
9.
Energize motor space heaters.
See Fan & Pump Manufacturer Maintenance and long term storage instructions for more detailed instructions.
6
ADVERTISEMENT
0 votes
Related Articles
Related forms
Related Categories
Parent category: Life