AHU, air handler units interior 
 
 
An Interior Air Handler Unit (IAHU) is a type of HVAC equipment that:
 
1. Conditions and circulates air within a building
2. Typically installed indoors, either in a central location or serving a specific zone
3. Provides heating, cooling, ventilation, and air filtration
4. Often used in commercial, industrial, and large residential applications
 
Required annual services for Interior Air Handler Units typically include:
 
1. Filter replacements (pre-filters, bag filters, or HEPA filters)
2. Cleaning of the unit's interior and exterior
3. Inspection and cleaning of fans, motors, and belts
4. Check and adjustment of airflow rates and balances
5. Verification of system controls, sensors, and safety devices
6. Cleaning and inspection of the unit's heating and cooling coils
7. Check for any signs of wear, damage, or corrosion
8. Verification of proper drainage and condensate management
9. Performance testing to ensure the unit is meeting design specifications
10. Refrigerant leak detection and repair (if applicable)
11. Electrical component inspection and tightening (if applicable)
 
Regular annual maintenance ensures:
 
- Optimal performance and efficiency
- Extended equipment lifespan
- Improved indoor air quality
- Reduced energy consumption
- Prevention of unexpected breakdowns