Honeywell ARD12TZ Damper

The Honeywell ARD12TZ is a 12-inch automatic round damper engineered specifically for heavy-duty forced air zoning systems. This 24Vac two-position damper features a power-closed/spring-return open configuration, making it a reliable fail-safe solution that ensures unrestricted airflow in the event of a power loss. Constructed from heavy-gauge galvanized steel, the single-blade design utilizes a synthetic gasket to achieve a low-leakage seal, maintaining high static pressure integrity up to 1-inch wc. As a professional-grade HVAC zone damper, the ARD12TZ serves as the direct replacement for ARD12TZ/U and RDS-12 models, offering seamless integration with Honeywell TrueZONE panels via push-in terminals. The spring return actuator is equipped with adjustable range stops for precise blade positioning and a mechanical position indicator to simplify on-site troubleshooting for technicians. This motorized duct damper is built for longevity and quiet operation in high-performance residential and light commercial applications.

Key Benefits for Contractors:

• Fail-Safe Operation: The normally open spring return ensures that 12-inch supply ducts remain open for bypass or emergency relief if control power is lost.
• Compatibility: Perfectly suited as a direct replacement for RDS-12 and legacy ARD12TZ/U units, requiring no ductwork modifications.
• Simplified Wiring: Features two-wire 24V installation with dedicated push-in terminals that match the Honeywell TrueZONE wiring standard.
• Precision Control: Built-in adjustable range stops allow technicians to set minimum and maximum air bleeds without specialized tools.
• Durable Construction: The galvanized steel 12-inch round damper frame provides superior rigidity and resistance to corrosion in unconditioned spaces.

Common Questions:

What is the difference between ARD12TZ and RDS-12?
The ARD12TZ is the updated TrueZONE version of the legacy RDS-12. It features improved motor torque, LED indicators for status monitoring, and push-in terminals that allow for faster field damper installation compared to the older screw-terminal versions.

Can this damper be installed in any orientation?
Yes, the Honeywell ARD12TZ can be mounted in horizontal or vertical duct runs. The damper actuator is designed to operate efficiently regardless of the mounting angle, provided there is enough clearance for the mechanical position indicator.

How do I wire the ARD12TZ to a 3-wire zone panel?
While this is a 2-wire damper (M1 and M6), it can be integrated into systems requiring a third wire for an LED open indicator by utilizing the M4 terminal. For standard power-closed/spring-open operation, only the 24V common and hot connections are required.

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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.