The definition of air handling unit from ANSI/AHRI Conventional 430-2009 states that it's “A factory-designed encased assembly consisting of a fan or fans as well as other important machines to complete a number of from the features of circulating, cleaning, heating, cooling, humidifying, dehumidifying and mixing of air….” The ACR https://ahu-hire18630.luwebs.com/32455563/air-handling-unit-ahu-hire-options