General System Overview
- Visual inspection of entire chiller unit and surrounding equipment for visible leaks, wear, corrosion, or physical damage
- Inspect pipes, insulation, and support structures for integrity
- Record total operating hours and compressor starts for the day
- Ensure equipment is operating within expected limits
- Test all system alarms including high/low pressure, temperature, and low flow
- Verify all alarms are functional and audible
Compressor & Refrigerant System
- Check compressor for smooth operation without unusual vibrations or noises
- Monitor for signs of overheating in compressor operation
- Measure refrigerant pressures to ensure within prescribed operating range
- Check for refrigerant leaks using appropriate detection methods
- Verify oil levels in compressor are correct and oil is clean
- Replace oil if necessary according to manufacturer specifications
Heat Exchanger & Cooling Tower
- Inspect condenser coils for cleanliness and remove debris or dirt buildup
- Ensure coils are not clogged and clean if needed
- Verify adequate water flow rate through the condenser
- Check water temperature entering and exiting condenser meets design specifications
- Inspect cooling tower for debris, scale buildup, or fouling
- Clean cooling tower basin and fans if necessary
- Ensure cooling tower provides sufficient airflow and fan motors function properly
Water System & Treatment
- Verify proper water circulation through the system
- Check water pressure is within recommended range
- Inspect water pumps and check for leaks or unusual sounds
- Verify water treatment system chemicals are being dosed properly
- Test pH levels to ensure optimal water treatment performance
- Test alkalinity and hardness levels for proper water quality
Electrical System
- Inspect all electrical connections for corrosion, wear, or loose terminals
- Ensure all fuses, circuit breakers, and relays are in good condition
- Inspect motor and fan blades for wear and proper operation
- Check motor amperage against manufacturer specifications
- Verify control panel displays correct operational parameters
- Check for error codes on control panel display
Safety & Protection Systems
- Test all pressure relief valves to ensure proper working condition
- Verify pressure relief valves are not obstructed or stuck
- Verify emergency shutdown system is operational and responds appropriately
- Test high-pressure cutoff for correct operation under fault conditions
- Test low-pressure cutoff for correct operation under fault conditions
- Ensure all safety switches are clearly labeled and accessible
Performance Monitoring
- Monitor system performance by reviewing cooling output and energy consumption
- Review temperature and pressure levels for optimal operation
- Compare current data with historical data to identify trends or inefficiencies
- Review daily energy consumption for signs of increased usage
- Check for indicators of inefficiency or system malfunctions
Documentation & Reporting
- Record all inspections and findings in daily maintenance log
- Document corrective actions taken during inspection
- Include summary of system performance in maintenance log
- Record water treatment conditions and any issues addressed
- Verify compliance with ISO 14001 environmental management standards
- Ensure compliance with OSHA safety regulations