Resideo ZD16X20TZ Damper

The Resideo ZD16X20TZ is a heavy-duty rectangular zone damper engineered for professional HVAC applications requiring high-reliability airflow management. Built with a solid extruded aluminum frame and parallel blades, this 16" W x 20" H unit is designed for use with TrueZONE systems and other 24VAC electronic panels. The integrated synchronous motor is mounted on the 20-inch side and operates in a power closed/spring return open configuration, ensuring a fail-safe open position during power loss to prevent equipment high-limit trips.

For high-static applications up to 1 in. wc, the ZD16X20TZ features parallel blade design to minimize leakage and ensure quiet operation. The two-wire installation is straightforward for contractors, with a dedicated M4 terminal for optional LED position indication. Veteran techs will appreciate the adjustable mechanical range stops and the all-metal drive train gears, which provide long-term durability in demanding residential or light commercial zoning environments.

• Fail-Safe Logic: Spring return open design ensures maximum airflow if power is interrupted.
• Low Leakage Performance: Extruded aluminum parallel blades provide a tight seal, reducing energy waste in inactive zones.
• Flexible Mounting: Multi-poise motor allows for installation in any orientation to fit tight duct layouts.
• Visual Diagnostics: Built-in mechanical indicator and optional LED terminal for immediate status verification.
• Durability: Features Kevlar-reinforced gearing and high-temperature plastic components for attic or mechanical room installs.

Is the ZD16X20TZ compatible with older 3-wire Honeywell panels?
Yes, while it is optimized for modern 2-wire setups, it remains compatible with legacy systems; just ensure you are wiring to the M1 and M6 terminals for proper power-close functionality.

Can I install this damper in a vertical duct run?
Absolutely. The Resideo ZD series is designed for multi-orientation installs, though it is recommended to avoid mounting the motor on the bottom of the duct to prevent moisture accumulation.

How do I adjust the minimum airflow for a specific zone?
This model includes adjustable range stops on the actuator that allow you to set a minimum bleed position even when the damper is "closed."

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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.