Trane CenTraVac™ Water-Cooled Chiller CVHG - 920-1100 - 892 - 142M / 142L

Inspect for fouling and scaling in tubes

Check operation of condenser water flow sensing device

Factory recommendation to eddy current test tubes every three years

Sign off on the condenser inspection

Is the evaporator part of a closed circuit?

If yes, proceed to step 4. If no, proceed to step 5.

Has it been three years since the last cleaning?

For open evaporator systems, such as air washers, proceed with the following steps.

Is the evaporator visibly dirty?

If yes, proceed to cleaning. If no, inspection is complete.

Sign off on the evaporator maintenance

Shut down the chiller once each year to check the items of Starter or Adaptive FrequencyTM Drive

Check all connections per manufacturer specifications

Follow all manufacturer recommendations for starter or Adaptive FrequencyTM Drive (AFD) maintenance

Inspect/clean/service the AFD cooling system (water- or air-cooled AFD)

Record all applicable starter or starter component settings

Sign off on the yearly inspection

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

Is the purge operated excessively?

If yes, repeat the second step more often.

Apply oil to any exposed metal parts to prevent rust

Sign off on the chiller maintenance

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