What is the basic operation of an air handler?

The basic operation of an air handler involves moving air through ductwork while conditioning or filtering that air. This function is central to many HVAC systems, as an air handler typically contains fans to circulate air, as well as components to filter or treat that air, such as heating or cooling coils.

Air handlers can work in conjunction with heating and cooling systems, but their primary role is to facilitate the movement and proper distribution of air throughout a space. By conditioning and filtering the air, they help maintain air quality and comfort levels, which is essential for effective climate control in enclosed environments. Additionally, air handling units can be equipped with additional features like humidifiers and dehumidifiers to regulate moisture levels, further contributing to indoor air quality and comfort.