Preventive Maintenance Work Plan Chart Page 20
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35Preventive Maintenance Work Plan
Frequency Key
W – Weekly
M - Monthly Q - Quarterly
SA- Semi-Annually A- Annually SST - Seasonal Start-Up SSH - Season Shut Down
Centrifugal Water Cooled Chillers
Critical Tasks
Frequency Status
Date Completed Initials
Fill condenser and chilled water system.
SST
Ensure that unit's internal heater is operating properly before start-up.
SST
Inspect for proper operation of oil cooler.
SST
Ensure that both chilled and condenser water make-up systems are operating properly.
SST
Ensure proper operation of vanes and associated linkages.
SST
Check motor assembly for proper alignment and lubrication.
SST
Check operation of the lubrication system.
SST
Inspect for refrigerant/oil leaks. Repair leaks if found.
SST
Check refrigerant levels and recharge if needed
SST
Note unit run time, number of starts.
SST
Check all relays and operating/safety controls.
SST
Ensure that controls are providing proper/efficient operation of chiller. Check chilled water
SST
reset.
While chiller is operating, document all pressures and temperatures.
SST
Observe all valves and piping, inspect for leaks, repair if necessary.
SST
Inspect that all actuators, linkages, moving parts associated with chiller system control are
SST
properly adjusted, tighten if necessary.
Observe chiller components (i.e. - pumps, controls, motors, etc.) for proper operation.
SST
After first day of operation, flush and drain system to remove dirt and debris.
SST
Observe unit while in operation, note any unusual noise or vibration.
M
Inspect for refrigerant/oil leaks. Repair leaks if found.
M
Observe all valves and piping, inspect for leaks, repair if necessary.
M
While chiller is operating, document all pressures and temperatures.
M
Check refrigerant levels and recharge if needed
M
Flush/clean chilled and condenser water piping strainers.
M
Inspect lubrication system for proper operation.
M
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