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

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

Lubricate the gantries annually

Select the lubricant used for gantries

Select the lubricant used for hinges

Sign off on the lubrication process

Clean and touch-up painted surfaces as needed

Repair deteriorated, torn, or missing insulation

Sign off on the exterior parts maintenance

Trane recommends that coated waterboxes/tubesheets - regardless of the type of protective coating included - be taken out of service within the first one to three months of operation for inspection.

Any voids or defects identified upon inspection?

If voids or defects are identified, they must be repaired.

Is the water quality known to be highly supportive of corrosion (i.e., sea water, etc.)?

If yes, inspect the coating system at one month.

Is the water quality known to be relatively benign (i.e., normal treated and clean condenser water)?

If yes, inspect the coating system within three months.

Did the initial inspections show no problems?

Only when initial inspections show no problems are present should subsequent maintenance intervals be increased.

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

Pressure leak test if warranted

Submit refrigerant sample for analysis if required

Inspect unit for any signs of refrigerant or oil leakage