General System Overview
- Inspect entire chiller system for visible leaks, corrosion, wear and tear
- Check for any signs of damage to equipment or surrounding area
- Record operating hours and compare to maintenance schedule
- Review alarm history for past week and identify patterns
- Verify all alarms are functional and properly configured
- Check equipment room conditions (temperature, humidity, ventilation)
Compressor & Refrigerant System
- Inspect compressor for smooth operation, no unusual noises or vibrations
- Check refrigerant pressure and verify within recommended range
- Inspect oil levels and quality for contamination or discoloration
- Verify oil heater is functioning properly
- Check for refrigerant leaks around fittings and connections
- Monitor compressor discharge temperature
- Record suction and discharge pressures for trending
Electrical Components
- Inspect all electrical connections for wear, corrosion, or overheating
- Check motor amperage against manufacturer specifications
- Verify stable voltage and current with no fluctuations
- Inspect control panel for proper operation and display clarity
- Check starter contactors for pitting or wear
- Verify proper operation of disconnect switches
Water Systems
- Verify chilled water flow rates and pressures are correct
- Ensure condenser water flow is optimal
- Inspect pumps for proper operation and any issues
- Check and clean water strainers
- Verify water treatment chemical levels
- Monitor entering and leaving water temperatures
- Check for proper water flow switch operation
Heat Exchangers
- Inspect condenser and evaporator for dirt, dust, or scale buildup
- Clean coils as necessary to maintain efficiency
- Ensure airflow through heat exchangers is unobstructed
- Inspect and clean filters for proper operation
- Check fans for proper operation and cleanliness
- Monitor approach temperatures for efficiency trends
Safety & Protection Systems
- Test high and low pressure sensors and verify calibration
- Test emergency shutdown functionality
- Verify all safety interlocks are operational
- Check refrigerant monitor/leak detection system
- Test flow switches for proper operation
- Verify emergency stop buttons are accessible and functional
Performance Monitoring
- Monitor system performance against historical data
- Identify any inefficiencies or performance degradation
- Review data logs for trends indicating maintenance needs
- Calculate weekly average kW/ton efficiency
- Compare actual capacity to design specifications
- Document any performance anomalies for follow-up
Documentation & Reporting
- Document all maintenance tasks and inspections in weekly log
- Record all operating parameters and readings
- Update maintenance tracking system with completed tasks
- Note any issues requiring follow-up maintenance
- Review and file daily logs from the past week
- Generate weekly performance summary report