Preventive maintenance helps heat exchangers maintain capacity and avoid unexpected shutdowns. A simple checklist can make inspections consistent across equipment and sites.
Daily or Weekly Checks
- Review inlet and outlet temperatures
- Check operating pressure and unusual pressure changes
- Listen for abnormal fan, motor, pump, or vibration noise
- Look for leaks, frost, oil marks, or damaged insulation
Monthly Checks
- Inspect fins, tubes, guards, and casing
- Clean filters and remove visible debris
- Check electrical connections and motor condition
- Confirm airflow and drainage are unobstructed
Quarterly or Seasonal Checks
- Clean coils using an approved method
- Inspect corrosion and repair damaged protective coatings
- Check fan blades, belts, bearings, and mounting points
- Review refrigerant or water-circuit performance
Annual Checks
Schedule a detailed inspection that includes pressure testing where appropriate, electrical testing, water-quality review, control verification, and performance comparison with commissioning data.
Recordkeeping
Document readings, cleaning activities, parts replaced, and observed defects. Good records make it easier to identify gradual performance loss and plan maintenance before failure.
Conclusion
Consistent inspections protect efficiency and extend equipment life. Always follow the manufacturer’s safety and service instructions.