Zonefirst ZDB-16X24 16HX24W Parallel 24V 2-Pos S/R

The Zonefirst ZDB-16X24 is a professional-grade 16-inch high by 24-inch wide rectangular zone damper engineered for high-performance HVAC airflow management. Operating on a 24V motor, this 2-position spring return unit provides a reliable fail-safe, ensuring the damper returns to its normal state during power loss. The parallel blade damper configuration allows for rapid response times and consistent modulation, making it an essential component for both standard zoning and bypass applications. Unlike lighter residential models, the ZDB series features a heavy-duty extruded aluminum frame and reinforced blade seals to significantly reduce air leakage and maintain system static pressure. For contractors, this HVAC zone control solution offers a simplified two-wire installation, integrating seamlessly with most 24V zoning panels. This 16x24 zone damper is built for heavy-duty cycling in demanding environments, delivering precision airflow without the mechanical noise often found in lower-tier actuators.

Key Benefits

• High-Torque Actuator: The synchronous 24V motor provides consistent mechanical force for reliable 2-position operation.
• Fail-Safe Logic: Internal spring-return mechanism ensures positive closure or opening upon loss of power for system protection.
• Precision Sealing: Gasketed blades and tight tolerances minimize bypass air, improving overall energy efficiency and temperature control.
• Rugged Construction: Extruded aluminum frames resist corrosion and warping under high-velocity airflow conditions.

Common Questions

How do I wire the ZDB-16X24 for my zone panel? This unit utilizes a standard two-wire 24V AC connection. One wire provides common, while the other triggers the motor when energized, allowing the spring return to handle the closing cycle.

What is the advantage of parallel blades over opposed blades? In a two-position spring return damper, parallel blades offer a quicker full-open or full-close transition, which is ideal for isolating zones in residential and light commercial ductwork.

Can the actuator be replaced without removing the damper? Yes, the Zonefirst ZDB series is designed with field-serviceability in mind, allowing the motor assembly to be swapped if necessary without cutting into the ductwork.

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.