The ZoneFirst AOBD-16X12 is a professional-grade automatic opposed blade damper engineered for high-performance HVAC zoning systems. Measuring 16 inches wide by 12 inches high, this heavy-duty unit features a 24Vac power open/power closed actuator with integrated end switches for precise feedback and system sequencing. Built from anodized extruded aluminum, the opposed blade design ensures linear airflow control and minimal turbulence compared to single-blade models. The actuator is strategically mounted on the 12-inch side to facilitate low-profile installation in tight ductwork runs. Designed for systems with static pressures up to 0.5" W.C., the AOBD-16X12 provides a reliable solution for commercial HVAC airflow management and residential air balancing. This motorized zone damper is essential for contractors seeking to optimize energy efficiency and thermal comfort across multiple zones while utilizing standard 24V HVAC controls.

Key Benefits for Contractors

• Precision Airflow Control: The opposed blade mechanism provides superior air modulation and tighter shut-off than standard parallel or single-blade dampers.
• System Feedback: Built-in end switches allow for easy slaving of multiple dampers or signaling equipment status, reducing field wiring complexity.
• Rugged Construction: Extruded aluminum frame and blades offer excellent corrosion resistance and long-term durability in high-demand environments.
• Reliable Actuation: The high-torque 24V power open/power closed motor ensures positive positioning without the failure risks associated with spring-return models in high-velocity ducts.
• Flexible Mounting: Side-mounted motor configuration is ideal for retrofit HVAC applications where clearance around the duct is limited.

Common Questions

Can this damper be used as a replacement for older TAT or Honeywell models?
Yes, the AOBD series is often used as a direct or functional replacement for various industry-standard motorized dampers. Always verify the 16x12 dimensions and the 3-wire 24Vac control requirement before installation.

Is this model compatible with both heating and cooling cycles?
Absolutely. This zone damper is designed to handle the variable temperatures of standard forced-air heating and air conditioning systems, providing consistent performance regardless of the cycle.

How do I wire the built-in end switches?
The integrated end switches are typically dry contacts that close when the damper reaches its full open or closed position, allowing you to interlock the damper actuator with the fan or other zones for advanced automation.

Item is Non Cancelable / Non Returnable

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.