An air handler, or air handling unit (often abbreviated to AHU), is used to regulate and circulate air as an integral part of a heating, ventilating, and air-conditioning (HVAC) system. An air handler usually consists of a large metal box containing a blower, filter racks, heating and cooling elements, sound mufflers, and dampers.
Air handlers are usually connected to a duct work ventilation system that distributes the air through a building and returns it to the Air Handling Unit. Air Handling Units may discharge and return air directly to and from the space served without duct work.
Small air handlers are known as terminal units and may only include an air filter, coil, and blower. Simple terminal units are called blower coils or fan coil units. An air handler unit that conditions 100% outside air, and that uses no recirculated air, is known as a makeup air unit (MAU). An air handler unit designed for outdoor use, and typically on mounted on the roof, is known as a packaged unit (PU) or rooftop unit (RTU).
San Fernando Valley HVAC Services offers a number of Air Handlers Units. Call us for more details.