The Importance of Preventive Maintenance
Regular preventive maintenance extends equipment life by 30-50%, reduces energy consumption by 15-20%, and avoids emergency maintenance costs that can be 5 times higher than preventive maintenance.
Monthly Checks
- Clean or replace air filters
- Check refrigerant pressures and airflow
- Clean and maintain coils
- Inspect fan belts and lubricate
- Review energy consumption records
Quarterly Checks (Every 3 Months)
- Check refrigerant connections for tightness (Leak Detection)
- Test ethylene glycol solutions
- Calibrate control devices and sensors
- Inspect and clean drain pans
- Test fire protection and alarm systems
Comprehensive Annual Checks
| Equipment | Annual Checks | Standard |
|---|---|---|
| Compressor | Oil analysis + insulation resistance test | ASHRAE 180 |
| Cooling Tower | Cleaning + biological treatment | ASHRAE 188 |
| AHU | Coil washing + comprehensive inspection | EN 13779 |
| Control Panels | Terminal tightening + protection testing | IEC 60364 |
