General System Inspection
- Perform detailed visual inspection of chiller and surrounding areas for leaks, wear, or corrosion
- Verify weekly operating hours and compare with typical operation patterns
- Test all system alarms including pressure, temperature, and flow alarms
- Check for unusual odors indicating solution degradation or overheating
- Inspect insulation for damage or moisture infiltration
Solution System Check
- Check absorber solution levels and record any changes from previous week
- Verify solution pump operation - listen for cavitation or unusual noise
- Check solution sight glasses for clarity and proper flow patterns
- Monitor solution temperatures at key points in the cycle
- Inspect for crystallization indicators around valves and piping
- Verify proper solution mixing and consistency
Water System Maintenance
- Clean chilled water strainers and document debris accumulation
- Clean cooling water strainers and check for biological growth
- Verify water flow rates and pressure drops across heat exchangers
- Check water treatment chemical levels and adjust dosing if needed
- Inspect pump seals for leaks or excessive wear
- Verify proper venting of water systems
Vacuum System Review
- Record vacuum readings and compare with previous weeks
- Document purge unit runtime for the week
- Check purge pump oil level and condition
- Listen for air infiltration sounds during operation
- Verify vacuum gauge readings are stable and accurate
Heat Source Verification
- Verify steam/hot water supply pressure and temperature stability
- Check steam trap operation and condensate return (if applicable)
- Monitor generator temperature profile during operation
- Test heat input control valve modulation
- Verify combustion efficiency (direct-fired units)
Electrical System Check
- Inspect electrical connections for signs of overheating or corrosion
- Check motor amperage against nameplate ratings
- Verify proper operation of motor overload protection
- Test control panel displays and operator interface
- Check for proper grounding and electrical safety
- Verify motor condition and listen for bearing noise
Control System Verification
- Review control panel for active alarms or warnings
- Verify setpoints haven't been inadvertently changed
- Test control response to simulated load changes
- Check trending data for unusual patterns
- Verify remote monitoring connectivity (if applicable)
- Test manual override functions
Performance Monitoring
- Record key performance indicators including COP and capacity
- Compare weekly energy consumption with baseline
- Monitor approach temperatures for fouling indicators
- Review performance trends to identify developing issues
- Document any capacity shortfalls or efficiency losses
- Track cycle times and operating patterns
Safety Systems Test
- Test high/low pressure and temperature safety alarms
- Verify emergency shutdown system functionality
- Check crystallization prevention system readiness
- Test safety interlocks and protective devices
- Verify proper equipment room ventilation
- Check emergency equipment accessibility