When shut, Each and every close rests around the 1 beneath it. This damper model finds its Key use in ducts with fixed airflow. Handbook dampers are adjusted by hand and are typically Utilized in more mature HVAC methods. These are less prevalent now because of the enhanced effectiveness and https://mylesndrer.activablog.com/35869487/the-ultimate-guide-to-air-control-dampers-for-hot-climates