Maintenance Schedule

Basic Steps for Optimized Performance

• Inspect the chiller quarterly
• Routinely check for refrigerant leaks
• Confirm compressor operating pressures are within a reasonable range
• Check all motor voltages & amps
• Check all electrical starters, contactors and relays
• Check all hot gas and unloader operations
• To reach maximum efficiency, use superheat and subcooling temperature readings
• Line readings from Discharge lines should also be obtained

For a custom maintenance schedule for your specific product, please contact a Cooling Technology, Inc representative and they will be happy to discuss our maintenance packages with you. Daily Maintenance Check List for Chillers

Description	Comment
Chiller use & Sequencing	Turn off or sequence unnecessary chillers
Overall Visual Inspection	Complete overall visual inspection to be sure all equipment is operating and that safety systems are in place
Check Setpoints	Check all setpoints for proper setting and function

Monthly Maintenance Check List for Chillers

Description	Comment
Evaporator and Condenser Coil Fouling	Assess evaporator and condenser coil fouling as required
Compressor Motor Temperature	Check temperature per manufacturer’s specifications
Leak Testing	Conduct leak testing on all compressor fittings, oil pump joints and fittings, and relief valves
Check all Insulation	Check insulation for condition and appropriateness
Control Operations	Verify proper control function including: Hot gas bypass Liquid injection

Semi – Annually Maintenance Check List for Chillers

Description	Comment
Check Chiller Lockout Points	Check settings for manufacturer’s specifications

Annual Maintenance Check List for Chillers

Description	Comment
Compressor Motor & Assembly	Check all alignments to specification. Check all seals and provide lubrication where necessary.
Compressor Oil System	Conduct analysis on oil & change as necessary Check oil pump and seals Check oil heater and thermostat Check all strainers, valves, etc
Electrical Connections	Check all electrical connections and terminals for contact and tightness
Water Flows	Assess proper water flow in evaporator and condenser
Check Refrigerant Level and Condition	Record amounts and address leakage issues.

Maintenance Schedule as provided by www.eere.energy.gov