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Air-conditioning

Commercial Air Handling Units

An air handling unit (AHU) is a device used to condition and circulate air as part of a heating, ventilating, and air-conditioning (HVAC) system. Air handlers usually connect to a ventilation system that distributes the conditioned air through the building and returns it to the AHU.

Air handlers may need to provide heating, cooling, or both to change the supply air temperature, and humidity level depending on the location and the application. Such conditioning is provided by heat exchanger coil(s) within the air handling unit air stream; such coils may be direct or indirect in relation to the medium providing the heating or cooling effect.