Centrifugal fans are the most versatile air moving equipment. The housing (volute) of the centrifugal fan accelerates the air and changes the direction of the airflow twice, that is 90⁰ before leaving the volute / housing. These fans are relatively quite and reliable. If selected properly, these centrifugal fans are highly energy efficient. The following paragraphs discuss about the considerations to be made while selecting a centrifugal fan for your HVAC application. A. Selection consideration…