MaintenanceHVAC
Chiller Maintenance Checklist
Maintain optimal cooling performance with our detailed chiller maintenance checklist. Covers water-cooled and air-cooled chillers for commercial applications.
Free Template
Overview
This chiller maintenance checklist ensures thorough inspection and servicing of commercial cooling equipment. Regular chiller maintenance prevents costly breakdowns, improves efficiency, and extends equipment life in data centers, hospitals, and commercial buildings.
Key Benefits
Complete Checklist
Compressor System
- Check compressor oil level and quality
- Inspect compressor for unusual noise or vibration
- Test compressor motor amperage
- Check compressor mounting and alignment
- Inspect suction and discharge valves
- Verify proper refrigerant charge
- Test capacity control operation
- Check oil filter and oil pressure
- Inspect crankcase heater operation
- Monitor compressor discharge temperature
Evaporator and Condenser
- Inspect evaporator tubes for fouling
- Check evaporator approach temperature
- Clean condenser tubes as needed
- Verify proper water flow rates
- Inspect for refrigerant leaks
- Check approach and leaving temperatures
- Test water pressure drops
- Inspect tube bundle condition
- Verify proper insulation
- Check for scale buildup
Water Systems
- Test chilled water flow and pressure
- Check condenser water flow and temperature
- Inspect water pumps and seals
- Verify proper water treatment
- Test automatic fill valves
- Check expansion tank pressure
- Inspect water strainers and filters
- Verify flow switch operation
- Test low water cutouts
- Check for water leaks in system
Electrical Components
- Inspect electrical connections for tightness
- Test motor starter operation
- Check control transformer voltage
- Inspect circuit breakers and fuses
- Test safety interlocks and cutouts
- Verify proper grounding
- Check motor insulation resistance
- Inspect control panel condition
- Test emergency shutdown system
- Verify proper phase voltage balance
Controls and Sensors
- Calibrate temperature sensors
- Test pressure transducers
- Verify control sequence operation
- Check setpoints and programming
- Test safety limit controls
- Inspect control wiring
- Verify proper sequencing
- Test remote monitoring system
- Check alarm functions
- Update control software if needed
Performance and Efficiency
- Record operating pressures and temperatures
- Calculate system efficiency (kW/ton)
- Compare to baseline performance
- Check refrigerant superheat and subcooling
- Measure power consumption
- Verify capacity output
- Document water treatment results
- Review operating logs
- Identify efficiency improvement opportunities
- Create maintenance recommendations report
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