Description
The IO HVAC Controls D-10-PO 10″ Round Fresh Air Damper is a motorized airflow control component designed to regulate the intake of outside air into duct systems by opening or closing based on a 24V control signal. It is configured as normally closed, meaning it stays shut when not energized and opens when power is applied to allow fresh air circulation. Installed in ventilation and air distribution assemblies, it manage indoor air balance, ventilation rates, and system efficiency. This component is used in building ventilation systems as a controlled air intake part that supports proper airflow management, energy efficiency and stable indoor air conditions.









