Trane CenTraVac™ Water-Cooled Chiller CVHF - 1070-1300 - 1062 - 142M / 210L

Refer to Operation and Maintenance Guide: EarthWise Purge System with Tracer AdaptiView Control for Water-Cooled CenTraVac Chillers with R-123 Refrigerant (PRGF- SVX01*-EN) for annual maintenance procedures.

Refer to Operation and Maintenance Guide: Purge System with Tracer AdaptiView Control for Water-Cooled CenTraVac Chillers with R-514A Refrigerant (PRGG-SVX001*-EN) for annual maintenance procedures.

Evaporator refrigerant temperature sensor (4R10) reading

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.

Condenser tubes fouling inspection

Clean condenser tubes if necessary.

ifm efector® flow detection sensors inspection

Lubricate the vane control linkage bearings, ball joints, and pivot points

Lubricate vane operator tang O- rings

Lubricate the oil filter shutoff valve O-rings

Sign off on the chiller lubrication

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

1. Inspect for fouling and scaling in tubes

2. Check operation of evaporator water flow sensing device

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

NOTICE: Proper Water Treatment Required! The use of untreated or improperly treated water could result in scaling, erosion, corrosion, algae or slime. Use the services of a qualified water treatment specialist to determine what water treatment, if any, is required. Trane assumes no responsibility for equipment failures which result from untreated or improperly treated water, or saline or brackish water.

Condenser tube fouling is indicated when the approach temperature (the difference between the condensing refrigerant temperature and the leaving condenser water temperature) is higher than predicted.

If the annual condenser tube inspection indicates that the tubes are fouled, two cleaning methods— mechanical and chemical—can be used to rid the tubes of contaminants. Use the mechanical cleaning method to remove sludge and loose material from smooth-bore tubes.

To clean other types of tubes including internally- enhanced types, consult a qualified service organization for recommendations.

Follow all instructions in “Waterbox Removal and Installation,” to remove waterbox covers.

Work a round nylon or brass bristled brush (attached to a rod) in and out of each of the condenser water tubes to loosen the sludge.

Thoroughly flush the condenser water tubes with clean water.

Scale deposits are best removed by chemical means. Be sure to consult any qualified chemical house in the area (one familiar with the local water supply’s chemical mineral content) for a recommended cleaning solution suitable for the job.

Note: A standard condenser water circuit is composed solely of copper, cast iron, and steel.

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

Tube test performed on condenser?

Tube test performed on evaporator?

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

Is this a critical process equipment?

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

Upload a copy of the engineering bulletin (CTV-PRB024*-EN)

Sign off on the 3 Yearly Tubes Maintenance