Preventive maintenance is the annual, pre-scheduled service, where all or part of the components of a chiller are tested, inspected, or replaced.
Typically, this would include:-
·
Typically, this would include:-
·
- An inspection of the condenser heat exchanger and cleaning if necessary·
- Changing the oil filter, refrigerant filters and purge filter/driers, for low-pressure chillers·
- An oil change, depending on what the oil analysis report indicates a thorough refrigerant leak test·
- Performing diagnostics tests on the control panel and chiller starter·
- Checking wiring for overheating and tightness at the connections·
- Testing the compressor motor and oil pump motor winding's with a meg Ohm meter. ·
- This test tells the condition of the motor winding's·
- Lubricating the compressor, compressor motor, related pumps and motors to their manufacturer's specifications.All of these tests are standard procedures that can be performed by a large machine service technician.