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

- 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.

- 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;

- 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;

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

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

2. 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

- 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

- Do this more often if the purge is operated excessively

- Apply oil to any exposed metal parts to prevent rust;