Io Hvac Controls HD-NA-0806 Zone Damper 8x6 No Actuator

Product Description

The IO HVAC CONTROLS HD-NA-0806 is a two-position zone damper sized for 8 x 6 inch duct openings and supplied without an actuator. It accepts a 5/8-inch to 1/2-inch shaft for mounting a separately sourced actuator, giving installers flexibility to pair it with a compatible two-position or spring-return actuator of their choice. The damper controls airflow to individual zones in forced-air residential or light-commercial HVAC systems, opening fully or closing fully based on thermostat demand. Licensed HVAC technicians and sheet metal contractors typically source this component when replacing a failed zone damper or expanding an existing zone-control system.

This damper is suited for rectangular duct systems where zone-by-zone airflow management is required. It is installed in the supply duct branch serving a defined zone and wired to a zone control board that signals the actuator to open or close based on calling thermostats. The no-actuator configuration makes it practical for staged replacements, multi-zone retrofits, and job-site situations where the actuator is already on hand or sourced separately.

Key Features

• Two-position operation - full open or full closed for straightforward zone control
• Fits 8 x 6 inch rectangular duct openings
• 5/8-inch to 1/2-inch shaft accommodates a wide range of separately sourced actuators
• Supplied without actuator, allowing pairing with the installer's preferred two-position or spring-return actuator
• Compact package dimensions support installation in tight duct chases

Compatibility

Designed as an OEM-style replacement or new-installation zone damper for 8 x 6 inch rectangular supply duct branches in residential and light-commercial forced-air zoning systems.

Installation Notes

Installation should be performed by a licensed HVAC technician following local mechanical codes and the zone control system manufacturer's wiring guidelines. Power down the air handler and zone control board before installing or servicing the damper. Verify the actuator shaft size matches the 5/8-inch to 1/2-inch shaft before mounting. Secure the damper in the duct using appropriate sheet metal fasteners and seal edges to prevent air bypass.