What is an air handler unit?

An air handler unit, also known as an air handling unit (AHU), is a device used to circulate and regulate the flow of air in heating, ventilation, and air conditioning (HVAC) systems. It typically consists of a blower, heating and cooling coils, filters, and dampers. The air handler unit is responsible for distributing conditioned air throughout a building and removing stale air.

Air handler units can be found in residential, commercial, and industrial buildings, as well as in HVAC systems for vehicles. They come in various sizes and configurations to meet the specific needs of a building or space. Some air handler units are designed for use with a rooftop HVAC system, while others are installed indoors.

The components of an air handler unit work together to heat, cool, filter, and distribute air throughout a building. The blower forces air through the coils, where it is heated or cooled, and then passes through the filters to remove particles and impurities. The dampers regulate the flow of air to different parts of the building, ensuring even distribution.

Regular maintenance of an air handler unit is important to ensure optimal performance and energy efficiency. This includes changing filters, cleaning coils, and inspecting the blower and dampers for any issues. Proper maintenance can extend the lifespan of the unit and help prevent costly repairs.