General System Overview
- Perform thorough visual inspection for wear, corrosion, or damage
- Check and record total operating hours and compressor starts
- Verify all alarms are active and functioning properly
- Review alarm history for recurring issues since last inspection
- Check equipment room conditions and ventilation
- Inspect insulation integrity on piping and components
Compressor & Refrigerant System
- Inspect compressor for smooth operation, no unusual vibrations or noises
- Measure refrigerant pressure and confirm within operating range
- Check oil levels and inspect for contamination or discoloration
- Verify oil heater operating properly to prevent refrigerant migration
- Check slide valve operation and response to capacity changes
- Monitor oil pressure differential across filter
- Record superheat and subcooling values
Electrical Components
- Inspect electrical connections for tightness, corrosion, or damage
- Check motor amperage against specifications
- Inspect motor for overheating or damage signs
- Verify control panel displays accurate readings
- Check all switches and buttons are operational
- Inspect VFD operation if equipped
Water Systems
- Verify chilled water flow and pressure within optimal range
- Inspect pumps for proper operation and no blockages
- Check condenser water flow for sufficient circulation
- Inspect pump operation and flow meters
- Check water temperatures and approach values
- Verify water treatment system operation
Heat Exchangers
- Inspect condenser and evaporator coils for dirt, scale, or debris
- Clean coils as necessary to maintain heat transfer efficiency
- Check approach temperatures and trend against baseline
- For air-cooled units, verify all condenser fans operating
- Inspect for proper airflow and no obstructions
Safety & Protection Systems
- Test pressure and temperature sensors for proper operation
- Verify high/low pressure alarms functioning correctly
- Ensure emergency shutdown system is operational
- Check oil pressure safety switches
- Verify flow switches responding properly
- Test refrigerant leak detection if equipped
Performance Monitoring
- Monitor and assess operational efficiency versus expected parameters
- Review energy consumption patterns for potential issues
- Compare weekly performance data with previous weeks
- Check slide valve position versus cooling demand
- Monitor compressor loading patterns
- Record key performance indicators for trending
Documentation & Reporting
- Record all activities and inspections in weekly log
- Document maintenance performed during inspection
- Note any abnormal conditions or concerns
- Update maintenance schedule based on findings
- Report critical issues for immediate attention