MODULATING CHARACTERISTICS OF CONTROL DAMPERS: Determining the Correct Damper Design

摘要

With the wide variety of dampers that can be used in the design of air-handling units (AHUs), determining which is right for your application can be a daunting task, but it doesn't have to be, Here's a simple rule of thumb I began using 40 years ago: 1,000 fpm Face Velocity, unless it was used behind a coil or louver, and then it was 500 fpm for that unit.