General • Maintenance

CenTraVac Water-Cooled Chiller CDHH 2 - Annual Maintenance

This annual procedure helps you inspect the condenser tubes for fouling and to have it cleaned if necessary. It will also let you inspect and clean the ifm efector flow detection sensors.

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10/24/2021

CenTraVac Water-Cooled Chiller CDHH 2 - Annual Maintenance

This annual procedure helps you inspect the condenser tubes for fouling and to have it cleaned if necessary. It will also let you inspect and clean the ifm efector flow detection sensors.

Shut down the chiller once each year to check the items listed on the “Appendix D: CDHH CenTraVac™ Chiller Annual Inspection List,” p. 126 (refer to “Appendix A: Forms and Check Sheets,” p. 121).

Perform the annual maintenance procedures referred to in “Maintenance,” p. 114.

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Use an ice water bath to verify the accuracy of the evaporator refrigerant temperature sensor (4R10). 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]), check its accuracy at six-month intervals.

Inspect the condenser tubes for fouling; clean if necessary.

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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.

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Submit a sample of the compressor oil to a Tranequalified laboratory for comprehensive analysis.

Measure the compressor motor winding resistance to ground; a qualified service technician should conduct this check to ensure that the findings are properly interpreted. Contact a qualified service organization to leak-test the chiller; this procedure is especially important if the system requires frequent purging.

Source: Trane (www.trane.com)