how air handling unit is rated?
The capacity of the air handling units is rated in terms of the amount of air that can be handled by its fan. The capacity of the fan can be 30,000cfm (cubic feet per minute) with the static pressure of about 75 to 100mm of water gauge.) Cooling Coil: The cooling is one of the most important parts of the air handling units. It is made up of copper tubing of several turns and covered with the fins to increase the heat transfer efficiency of the cooling coil.