The primary operate of HVAC dampers is to control the airflow in the technique. This can be essential for several factors. Backdraft dampers are both gravity or motorized. Gravity backdraft dampers use the force of gravity to shut the damper when there is no air move. Motorized backdraft dampers use https://air-control-dampers-for-e90122.wizzardsblog.com/36662604/considerations-to-know-about-air-control-dampers-for-hot-climates