Trane CenTraVac™ Water-Cooled Chiller CVHE - 230-320 - 289 - 032S / 032S

Is the evaporator part of a closed circuit?

If yes, proceed to step 5. If no, proceed to step 4.

Did you perform a periodic inspection and cleaning on open evaporator systems, such as air washers?

Sign off on the evaporator maintenance

For R-123 chillers, perform the annual maintenance procedures referred to in Operation and Maintenance Guide: EarthWise Purge System with Tracer AdaptiView Control for Water-Cooled CenTraVac Chillers with R-123 Refrigerant (PRGF- SVX01*-EN). For R-514A chillers, perform the annual maintenance procedures referred to in Operation and Maintenance Guide: Purge System with Tracer AdaptiView Control for Water-Cooled CenTraVac Chillers with R-514A Refrigerant (PRGG-SVX001*-EN)

Verify the accuracy of the evaporator refrigerant temperature sensor (4R10) using an ice water bath

Check if the sensor is exposed to temperature extremes outside its normal operating range (0°F to 90°F [-17.8°C to 32.2°C])

If the sensor is exposed to temperature extremes, check its accuracy at six-month intervals

Inspect the condenser tubes for fouling

Clean the condenser tubes if necessary

Inspect and clean the ifm efector® flow detection sensors

Use Scotch-Brite® or other non-abrasive material to clean scale; do NOT use steel wool, which could cause the probe to rust

Submit a sample of the compressor oil to a Trane- qualified laboratory for comprehensive analysis

- Check the chiller’s evaporator and condenser pressures, oil tank pressure, differential oil pressure, and discharge oil pressure

- Compare the readings with the values provided in the general maintenance

- Check the oil level in the chiller oil sump using the two sight glasses provided in the oil sump head. When the unit is operating, the oil level should be visible in the lower sight glass

- Complete logs on a daily basis.

- 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;

Operate the tang operators manually and check for any abnormalities

Drain contents of the rupture disk and purge discharge vent-line drip-leg into an evacuated waste container

Is the purge operated excessively?

If yes, repeat step 2 more often.

Apply oil to any exposed metal parts to prevent rust

Sign off on the chiller maintenance