In a zone control system, what role do dampers play?

In a zone control system, what role do dampers play?

• A. Filter air entering the system
• B. Direct conditioned air to specific zones by opening/closing dampers
• C. Change refrigerant charge
• D. Power the fans

Answer: (B)

Dampers act as gates in the ductwork that control where the conditioned air goes. In a zone control setup, each zone has its own damper that can open or close under the direction of a central control panel and thermostats. When a zone thermostat calls for heating or cooling, its damper opens to allow more air into that zone, while dampers serving other zones close or restrict airflow. This selective opening and closing directs the conditioned air to specific areas, creating different temperatures in different rooms and saving energy by not conditioning spaces that don’t need it. Dampers are typically motorized and powered by the system, but they don’t filter air, change the refrigerant charge, or power the fans themselves.

Dampers act as gates in the ductwork that control where the conditioned air goes. In a zone control setup, each zone has its own damper that can open or close under the direction of a central control panel and thermostats. When a zone thermostat calls for heating or cooling, its damper opens to allow more air into that zone, while dampers serving other zones close or restrict airflow. This selective opening and closing directs the conditioned air to specific areas, creating different temperatures in different rooms and saving energy by not conditioning spaces that don’t need it. Dampers are typically motorized and powered by the system, but they don’t filter air, change the refrigerant charge, or power the fans themselves.