Control Dampers Home / Products / HVAC / Fans & Dampers / Control Dampers Accordion with Plus Icon and External Links Dampers + Life Safety Dampers Control Dampers Manual Balancing Dampers Tunnel Dampers VCD Features VCD Series Volume Control Dampers Designed for HVAC systems requiring modulating airflow Suitable for use as an automatic control damper in low to medium pressure and velocity systems. Blade design maximizes free area, enhancing damper performance.