Trane CenTraVac™ Water-Cooled Chiller CVHE - 230-320 - 289 - 050S / 050L

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

1. Review the purge Installation, Operation, and Maintenance manual and follow maintenance and/or inspection items identified

3. Review overall operation of purge and service as necessary;

- Check chiller for normal operation

1. Condenser pressure is dependent on condenser water temperature, and should equal the saturation pressure of the refrigerant at a temperature above that of leaving condenser water at full load

2. Normal pressure readings for ASME condenser exceed 12 psig (82.7 kPaG)

3. Oil tank pressure: -9 to -6 psig (-62.1 to -41.4 kPaG). Discharge oil pressure: 7 to 15 psig (48.3 to 103.4 KPaG)

4. Approximate Evaporator Pressure: 6 to 9 psia (41.4 to 62.1 kPaA) / -9 to -6 psig (-62.1 to -41.4 kPaG)

5. Approximate Condenser: Pressure(a) , (b) 17 to 27 psia (117.2 to 182.2 kPaA) / 2 to 12 psig (13.8 to 82.7 kPaG) (standard condenser)

6. Oil Sump Temperature Unit not running: 140°F to 176°F (60.0°C to 80.0°C)

7. Oil Sump Temperature Unit running: 95°F to 162ºF (35.0°C to 72.2°C)

8. Oil Sump Differential: Oil Pressure(c) 18 to 22 psid (124.1 to 151.7 PaD)

- 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;

Lubricate the gantries annually

Select the lubricant used for gantries

Select the lubricant used for hinges

Sign off on the lubrication process

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