Resideo ZD20X24TZ Damper

The Resideo ZD20X24TZ is a heavy-duty parallel blade zone damper designed for precision airflow control in multi-zone HVAC systems. Building on the reliable design of the legacy ZDB-20X24, this 20-inch wide by 24-inch high damper features a synchronous motor mounted on the 24-inch side. Operating on a standard 24Vac signal, the actuator utilizes a power closed/spring return open configuration, ensuring the zone defaults to an open state during power loss for system safety. The rugged aluminum frame and parallel blade arrangement provide low pressure drop and high-velocity handles, making it ideal for high-static residential or light commercial ductwork. This two-position damper integrates seamlessly with most forced air zoning systems, offering contractors a durable solution for balancing thermal loads and improving localized climate control.

Key Benefits

• Direct Replacement: Engineered as the professional-grade successor to the ZDB-20X24 model.
• Fail-Safe Operation: The spring return open mechanism ensures maximum airflow if the power supply is interrupted.
• Durable Construction: Features high-quality mechanical components and a synchronous motor designed for long-cycle duty.
• Simplified Wiring: Standard 24-volt zone damper wiring allows for quick integration with Honeywell Home and Resideo panels.
• Precise Gasketing: Internal seals minimize air bypass when the damper is in the fully closed position.

Common Questions

Can the Resideo ZD20X24TZ be installed in any orientation?
Yes, this damper can be mounted in any position within the ductwork, provided the motor on the 24-inch side remains accessible for wiring and maintenance.

What is the power consumption for the synchronous motor?
The motor typically draws approximately 6VA to 8VA when powered, allowing multiple dampers to be wired in parallel to a single zone on most HVAC zone control boards.

How do I verify if this unit replaces my existing ZDB series damper?
The ZD20X24TZ is the specific technical update for the ZDB-20X24. If your existing duct footprint matches these dimensions, this unit is the designated drop-in replacement.

This item is not eligible for free shipping.

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.