Io Hvac Controls TD-14 Round Zone Damper 14 Inch 24V

Product Description

The IO HVAC CONTROLS TD-14 is a 14-inch round zone damper with an integrated 60-second, 3-wire, 24-volt actuator designed for residential and light commercial HVAC zoning applications. The actuator operates on a standard 24 VAC control signal, making it compatible with most zone control boards and thermostats used in forced-air systems. The damper blade and housing control conditioned airflow through round duct runs, allowing a zone controller to open or close individual supply branches on demand. Licensed HVAC technicians and sheet metal contractors are the typical installers of this type of unit.

The TD-14 fits into 14-inch round ductwork and is suited for residential zoning systems as well as light commercial forced-air applications. The 3-wire actuator wiring configuration supports open, close, and common terminals, which aligns with the control signal format used by Belimo-compatible zone control systems and Trane AS zone panels. This makes it a practical direct-replacement or new-installation option where a 14-inch zone damper with an integrated actuator is required.

Key Features

• 14-inch round damper sized for standard 14-inch round duct installations
• 24 VAC, 3-wire actuator with 60-second drive time for smooth, controlled blade movement
• Belimo-compatible actuator design works with Belimo-style zone control wiring
• Compatible with Trane AS zone control systems
• Integrated actuator simplifies installation by eliminating separate actuator mounting

Compatibility

Compatible with Belimo actuator-style zone control systems and Trane AS zone panels. Designed for use in 14-inch round duct zoning installations in residential and light commercial forced-air HVAC systems.

Installation Notes

Installation should be performed by a licensed HVAC technician or sheet metal contractor. Power down the air handler and de-energize the 24 VAC control circuit at the transformer before making any wiring connections. Verify that the duct diameter matches the 14-inch damper bore before mounting. Follow the zone control board manufacturer's wiring diagram for the 3-wire open, close, and common terminals.