When the thermostat senses a transform in temperature, it sends a sign on the zone damper, which opens or closes to control the air movement to that zone. THIS column presents information about the use of outdoor air dampers in scorching and humid climates and during scorching and humid seasons https://gregoryqhxll.azzablog.com/36744780/new-step-by-step-map-for-air-control-dampers-for-hot-climates