Description
The Honeywell Residential 8MARD 8″ Modulating Automatic Round Damper is designed to regulate airflow within a duct system by adjusting the position of its internal blade. It is typically mounted inside round ductwork, where it connects to a zoning control panel that modulates the damper based on temperature demands in different areas of a building. As the actuator opens or closes the blade, it directs conditioned air to specific zones while restricting flow to others. This controlled air distribution supports balanced airflow management and coordinated operation within residential HVAC systems.









