
| Preventive Maintenance Saves Energy | |
| How? | Savings |
| Adjusting operating sequence of equipment | 25-35% |
| Cleaning coils | 5-15% |
| Changing dirty air filters | 10-15% |
| Removing scale from condenser coils | 25-30% |
| Adjusting air/fuel ratio of burners | 15% |
| Cleaning burner assembly | 15% |
| Removing soot from fire side of burner | 9% |
| Eliminating belt slippage and poor alignment of fan motors | 15-20% |


