Trane CenTraVac™ Water-Cooled Chiller CVHG - 670-780 - 621 - 080L / 080L

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

WARNING: Explosion Hazard! Never use an open flame to detect gas leaks. Use a leak test solution for leak testing.

WARNING: Hazardous Pressures! If a heat source is required to raise the tank pressure during removal of refrigerant from cylinders, use only warm water or heat blankets to raise the tank temperature. Do not exceed a temperature of 150°F. Do not under any circumstances apply direct flame to any portion of the cylinder.

Important: If leak testing is required, contact a Trane Service Agency.

Check purge times and unit performance logs

Submit refrigerant sample for analysis if required

Inspect unit for any signs of refrigerant or oil leakage

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

Lubricate the gantries annually

Select the lubricant used for gantries

Select the lubricant used for hinges

Sign off on the lubrication process

For R-123 chillers, perform the annual maintenance procedures referred to in Operation and Maintenance Guide: EarthWise Purge System with Tracer AdaptiView Control for Water-Cooled CenTraVac Chillers with R-123 Refrigerant (PRGF- SVX01*-EN). For R-514A chillers, perform the annual maintenance procedures referred to in Operation and Maintenance Guide: Purge System with Tracer AdaptiView Control for Water-Cooled CenTraVac Chillers with R-514A Refrigerant (PRGG-SVX001*-EN)

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

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

Submit a sample of the compressor oil to a Trane- qualified 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

Sign off on the 1 Yearly Chiller Maintenance

Contact a qualified service organization to determine when to conduct a complete examination of the unit to discern the condition of the compressor and internal components

Check for evaporator water tube leaks

Check for condenser water tube leaks

Sign off on the yearly chiller maintenance