The definition of air handling unit from ANSI/AHRI Regular 430-2009 states that it is “A factory-made encased assembly consisting of the enthusiast or fans as well as other necessary devices to carry out a number of of the capabilities of circulating, cleaning, heating, cooling, humidifying, dehumidifying and mixing of air….” https://ahuhire04714.blogsuperapp.com/32348553/top-guidelines-of-air-handling-units-ahus