What is Air Handling Unit?
An air handling unit is HVAC equipment that circulates and conditions air before sending it through a building.
Definition
Purpose
An air handling unit takes in air, adjusts it as required, and then sends it back to the building through ductwork. Depending on the system, it can heat, cool, filter, or add moisture to the air. An AC unit air handler may work with a separate outdoor air-conditioning unit to cool the building. In some systems, a furnace air handler unit moves heated air through the building.
Examples of Use
- Commercial buildings: AHUs supply conditioned air to offices, stores, and other occupied spaces.
- Residential HVAC: An AC unit air handler can circulate cooled air through a home's ductwork.
- Heating systems: A furnace air handler unit moves heated air from the furnace into different rooms.
Related Terms
Notes
- AHUs can range from small residential units to large systems serving entire buildings.
- Filters inside the unit help remove dust and other particles from the air.
- The size and configuration of an AHU depend on the building and the amount of air it needs to handle.
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