AHU components:
1.ventilators for supply and exhaust,
2. Heating coil,
3. Cooling coil,
4. Heating/cooling recovery system,
5. Air filter racks or chambers,
6. Sound attenuators,
7. Mixing chamber, and
8. Dampers.
Characteristics of AHU:
The basic function of the AHU is to take in outside air, re-condition it and supply it as fresh air to a building.