Trane CenTraVac™ Water-Cooled Chiller CVHF - 190-320 - 231 - 050S / 050S

Test appropriate sensors for accuracy

Ensure sensors are properly seated in wells with thermopaste installed

Check evaporator leaving water temperature low temperature cutout setpoint

Condenser high pressure switch check-out

Check adjustment and operation of the inlet guide vane actuator

Sign off on the control circuits inspection

- Shut down the chiller once each year to check the items

4. Inspect motor terminal board

5. Check inlet guide vanes (IGV) for abnormalities;

Review the purge Installation, Operation, and Maintenance manual and follow maintenance and/or inspection items identified

Review overall operation of purge and service as necessary

Sign off on the purge unit inspection

- Shut down the chiller once each year to check the items of Condenser

1. Inspect for fouling and scaling in tubes

2. Check operation of condenser water flow sensing device

3. Factory recommendation to eddy current test tubes every three years;

NOTICE: Equipment Damage! Mixing refrigerants or oils could result in equipment damage including bearing damage, introduction of acids into the chiller, or continuous purge pump-out in high-head/high ambient applications.

CenTraVac chillers are manufactured with different refrigerant/oil systems: 1) chillers using R-123 refrigerant and OIL00022 compressor oil, and 2) chillers using R-514A refrigerant and OIL00334/OIL00335 compressor oil.

Verify proper refrigerant and oil for your chiller and do NOT mix refrigerants or oils!

Important: Verify proper refrigerant and compressor oil for your chiller before proceeding!

After the first six months of accumulated operation or after 1000 hours operation—whichever comes first—it is recommended to change the oil and filter.

After this oil change, it is recommended to subscribe to the Trane annual oil analysis program rather than automatically change the oil as part of scheduled maintenance.

Change the oil only if indicated by the oil analysis. Using an oil analysis program will reduce the chiller’s overall lifetime waste oil generation and minimize refrigerant emissions.

The analysis determines system moisture content, acid level, and wear metal content of the oil, and can be used as a diagnostic tool. The oil analysis should be performed by a qualified laboratory that is experienced in refrigerant and oil chemistry and in the servicing of Trane® centrifugal chillers.

In conjunction with other diagnostics performed by a qualified service technician, oil analyses can provide valuable information on the performance of the chiller to help minimize operating and maintenance costs and maximize its operating life. A valve is installed next to the oil filter for the purpose of obtaining oil samples.