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.

1. Since the evaporator is typically part of a closed circuit, it may not accumulate appreciable amounts of scale or sludge

2. Normally, cleaning every three years is sufficient

3. However, periodic inspection and cleaning is recommended on open evaporator systems, such as air washers;

- Shut down the chiller once each year to check the items for Leak Test Chiller

1. Check purge times and unit performance logs. If warranted, pressure leak test

2. Review oil analysis. If required, submit refrigerant sample for analysis

3. Inspect unit for any signs of refrigerant or oil leakage

4. Check unit for any loose screws on flange, volutes, or casing

Failure to follow safe leak test procedures below could result in death or serious injury or equipment or property-only-damage

Never use an open flame to detect gas leaks. Use a leak test solution for leak testing

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

2. Clean and touch-up painted surfaces as needed

3. Repair deteriorated, torn, or missing insulation;

Equipment Damage! Mixing refrigerants or oils could result in equipment damage including bearing damage, introduction of acids into the chiller, or continuous purge pump-out in high-head/high ambient applications

CenTraVac chillers are manufactured with different refrigerant/oil systems: 1) chillers using R-123 refrigerant and OIL00022 compressor oil, and 2) chillers using R-514A refrigerant and OIL00334/OIL00335 compressor oil

Verify proper refrigerant and oil for your chiller and do NOT mix refrigerants or oils!

Important: Verify proper refrigerant and compressor oil for your chiller before proceeding!

1. After the first six months of accumulated operation or after 1000 hours operation—whichever comes first—it is recommended to change the oil and filter

2. After this oil change, it is recommended to subscribe to the Trane annual oil analysis program rather than automatically change the oil as part of scheduled maintenance

3. Change the oil only if indicated by the oil analysis. Using an oil analysis program will reduce the chiller’s overall lifetime waste oil generation and minimize refrigerant emissions. The analysis determines system moisture content, acid level, and wear metal content of the oil, and can be used as a diagnostic tool. The oil analysis should be performed by a qualified laboratory that is experienced in refrigerant and oil chemistry and in the servicing of Trane® centrifugal chillers