7/27/2019 Chiller Maintenance Checklist (2)

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Chiller Maintenance Checklist

Description Comment

Maintenance

Frequency

Daily Weekly Monthly Annually

Chiller use andsequencing

Turn off or sequence unnecessary chillers.X

Overall visualinspection

Complete overall visual inspection to be sureall equipment is operating and that safetysystems are in place.

X

Check setpoints Check all setpoints for proper setting andfunction.

X

Evaporator andcondenser coilfouling

Assess evaporator and condenser coil foulingas required. X

Compressor motortemperature

Check temperature per manufacturer'sspecifications.

X

Perform waterquality test

Check water quality for proper chemicalbalance.

X

Leak testing Conduct leak testing on all compressorfittings, oil pump joints and fittings, and reliefvalves.

X

Check all insulation Check insulation for condition andappropriateness.

X

Control operation Verify proper control function including:

Hot gas bypass

Liquid injection

X

Check vane controlsettings

Check settings per manufacturer'sspecification.

X

Verify motor loadlimit control

Check settings per manufacturer'sspecification.

X

Verify load balanceoperation

Check settings per manufacturer'sspecification.

X

Check chilled waterreset settings andfunction

Check settings per manufacturer'sspecification. X

Check chiller lockoutsetpoint

Check settings per manufacturer'sspecification.

X

Clean condensertubes

Clean tubes at least annually as part ofshutdown procedures.

X

7/27/2019 Chiller Maintenance Checklist (2)

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Eddy current testcondenser tube

As required, conduct eddy current test toassess tube wall thickness.

X

Clean evaporatortubes

Clean tubes at least annually as part ofshutdown procedures.

X

Eddy current testevaporator tubes

As required, conduct eddy current test toassess tube wall thickness.

X

Compressor motorand assembly

Check all alignments to specification. Checkall seals and provide lubrication wherenecessary.

X

Compressor oilsystem

Conduct analysis on oil and filter. X

Change as required. X

Check oil pump and seals. X

Check oil heater and thermostat. X

Check all strainers, valves, etc. X

Electricalconnections

Check all electrical connections and terminalsfor contact and tightness.

X

Water flows Assess proper water flow in evaporator andcondenser.

X

Check refrigerantlevel and condition Add refrigerant as required. Record amountsand address leakage issues. X