1. Compressor System Diagnostics
- Inspect compressor operation under load for unusual noise or vibration.
- Perform oil quality analysis for acidity, moisture, and contamination.
- Review compressor start-stop counts and load hours for abnormalities.
2. Refrigerant Circuit Verification
- Check refrigerant charge levels and adjust if necessary to ensure optimal performance.
- Inspect refrigerant lines and components for potential leaks or damage.
- Validate functionality of refrigerant isolation valves and pressure sensors.
3. Electrical System Review
- Inspect all electrical connections for corrosion, looseness, or wear.
- Test safety interlocks, circuit breakers, and overload protections.
- Review alarm history and resolve recurring fault conditions.
4. Heat Exchanger & Water Circuit Evaluation
- Measure water flow rates and pressure drops across the heat exchangers.
- Inspect and clean heat exchanger tubes as needed for optimal performance.
- Check performance of flow switches, temperature sensors, and valve actuators.
5. Overall System Performance Assessment
- Conduct load testing and analyze key performance indicators such as EER and COP.
- Compare monthly data with historical trends to detect efficiency losses.
- Document findings and submit a comprehensive report to facility management.