In the event the thermostat senses a change in temperature, it sends a sign on the zone damper, which opens or closes to regulate the air move to that zone. “HVAC dampers will be the unsung heroes of property comfort, silently Operating to create the perfect indoor setting.” Motorized dampers https://aircontroldampersforhotcl67899.blogdal.com/37224316/5-simple-statements-about-air-control-dampers-for-engine-sheds-explained