ARLINGTON HEIGHTS, Ill., April 11, 2024—Air Movement and Control Association (AMCA) International Inc. announces the release of AMCA Publication 201-23, Fans and Systems.

Superseding AMCA Publication 201-02 (R2011), Fans and Systems, AMCA Publication 201-23 includes general information about how fans are tested in laboratories and how their performance ratings are calculated and published. Also, it reviews some of the more important reasons for decreased performance once a fan is installed in a system. Allowances, called system-effect factors (SEF), are given. SEF must be taken into account by system designers, if a reasonable estimate of fan/system performance is to be determined.

AMCA Publication 201-23 includes findings from several research projects performed by AMCA and other laboratories. As a result of the research, the definition of outlet system effect was revised.

The cost of AMCA Publication 201-23 is $45 for AMCA members and $90 for non-members in printed or PDF format and $61 for AMCA members and $122 for non-members in both printed and PDF formats. To purchase a copy, click here.

For more information about AMCA Publication 201-23, contact Director of Publications and Standards Joe Brooks, PE, at [email protected] or Senior Manager, Publications and Standards Shruti Kohli-Bhargava at [email protected].