Zonefirst AOBD-12X12 Blade Damper

The Zonefirst AOBD-12X12 is a professional-grade 12" x 12" automatic opposed blade damper designed to provide precise airflow management in commercial and residential HVAC zoning systems. Constructed from heavy-duty extruded anodized aluminum, this damper features a low-profile frame that allows for simple "slide-in" installation through a standard 3-inch duct slot. Unlike parallel blade dampers, the opposed blade action provides a linear airflow response and superior sealing, making it the preferred choice for modulating airflow and maintaining static pressure balance across multiple zones.

The integrated 24Vac power open/power closed actuator ensures positive positioning without the maintenance concerns of spring-return motors. This high-torque motor operates with a 30-second cycle time and features built-in end switches, allowing for seamless integration with secondary equipment or status verification on your zoning control panel. The stainless steel drawbars and nickel-plated linkages are engineered to withstand ambient temperatures up to 200°F, providing long-term reliability in demanding plenum environments.

• Enhanced Airflow Control: Opposed blade design reduces turbulence and ensures more accurate volume control compared to parallel configurations.
• Durable Construction: High-grade extruded aluminum blades and frame with corrosion-resistant brass and stainless steel hardware.
• Low Maintenance Actuation: The 3-wire power open/power closed motor prevents the "hum" and failure points common in spring-return dampers.
• System Feedback: Integrated auxiliary end switches allow for proving damper position or interlock with fans and air cleaners.
• Compact Profile: Thinnest motorized damper in the industry, requiring only a small side-cut for mounting in existing metal ductwork.

How do I wire the AOBD-12X12 to a standard zone board?
This is a 3-wire damper. Typically, terminal 1 is common, terminal 4 is power open, and terminal 6 is power closed. Ensure your 24V transformer is rated for the 6VA draw per motor.

Can this damper be used for A2L refrigerant compliance?
Yes, when used with an A2L-compatible control strategy, the power open/power closed configuration allows for the mandatory "all-open" position required during leak detection events.

What happens if there is a power failure?
Since this is a power open/power closed motor (not spring-return), the blades will remain in their last position if power is lost, ensuring the system balance isn't unintentionally disrupted during a momentary outage.

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.