A mechanical damper HVAC is a device used to regulate the flow of air in a ventilation system. It is typically installed in the ductwork of a building and is used to control the amount of air that is allowed to pass through the system. The damper is typically operated by a motor, which is connected to a switch or controller. The motor can be set to open or close the damper depending on the desired airflow. This allows the system to be adjusted to meet the needs of the building’s occupants. Mechanical dampers are used in both residential and commercial buildings, and they are an important part of any HVAC system. They help to ensure that the air is properly circulated throughout the building, and they also help to reduce energy costs by preventing the system from running at full capacity when it is not needed.