The Air Movement and Control Association International released its new ANSI/AMCA Standard 207-17, Fan System Efficiency and Fan System Input Power Calculation. It provides a method to estimate the input power and overall efficiency of an extended fan system.
An extended fan system is composed of a fan and an electric motor but may also include a transmission and a motor controller. While direct measurement of fan system performance is preferred, the large number of fan system configurations often makes testing impractical.
The document offers a standardized method to estimate fan system performance by modeling commonly used components. Calculations reported in accordance with this standard offers fan users a tool to compare alternative fan system configurations in a consistent and uniform manner. However, it does not provide selection guidance. Users must assure that selected components have sufficient capacity and are configured to produce the desired results.
The ANSI/AMCA Standard 207-17 was approved by AMCA membership April 12, 2017, and by the American National Standards Institute on April 17, 2017.
AMCA 207-17 is available at the AMCA bookstore at www.amca.org/store. AMCA members receive a 50 percent discount on this and all items in the store.