Trane CenTraVac™ Water-Cooled Chiller CVHF - 350-910 - 957 - 080L / 080L

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

2. Test appropriate sensors for accuracy

3. Ensure sensors are properly seated in wells with thermopaste installed

4. Check evaporator leaving water temperature low temperature cutout setpoint

5. Condenser high pressure switch check-out

6. Check adjustment and operation of the inlet guide vane actuator;

- Clean all water strainers in the water piping system

- Inspect waterbox coatings within the first 1–3 months to determine a required maintenance schedule for your job site

- Inspect waterbox anodes within the first 1–3 months to determine a required maintenance schedule for your job site;

- Use a non-destructive tube test to inspect the condenser and evaporator tubes

1. It may be desirable to perform tube tests on these components at more frequent intervals depending upon chiller application

2. This is especially true of critical process equipment

3. Ask your Sales account manager for a copy of engineering bulletin (CTV-PRB024*-EN) for clarification of the role of eddy current testing in chiller maintenance by providing information about eddy current technology and heat exchanger tubing;

1. Since the evaporator is typically part of a closed circuit, it may not accumulate appreciable amounts of scale or sludge

2. Normally, cleaning every three years is sufficient

3. However, periodic inspection and cleaning is recommended on open evaporator systems, such as air washers;

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!

1. 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

2. 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

3. 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