Io Hvac Controls HD-BM-NA-2608 Zone Damper 26x8

Product Description

The IO HVAC CONTROLS HD-BM-NA-2608 is a two-position zone damper designed for bottom-mount duct installations in residential and light commercial HVAC zoning systems. This damper ships without an actuator, allowing installers to pair it with a compatible actuator of their choice. The 5/8-to-1/2 inch shaft accommodates standard actuator drives used in zoned forced-air applications. At 8.04 pounds, the unit is built for duct openings sized at 26 inches wide by 8 inches tall. It is installed by licensed HVAC technicians as part of a multi-zone air distribution system.

This damper is suited for residential and light commercial zoning projects where airflow to individual rooms or zones must be modulated independently. The bottom-mount configuration positions the actuator drive at the base of the damper, which can simplify access in certain duct configurations. Because no actuator is included, this model is often selected when upgrading an existing zoned system or when a specific actuator brand or control voltage is already specified. Installers working with IO HVAC CONTROLS zone control panels or third-party zone controllers can match the appropriate actuator to this damper based on their system requirements.

Key Features

• Two-position operation for open/closed zone control in forced-air duct systems
• Bottom-mount actuator configuration for accessible installation in tight duct runs
• Ships without actuator, allowing field selection of compatible drive
• 5/8-to-1/2 inch shaft size supports standard HVAC actuator couplings
• 26-inch by 8-inch duct opening size fits common residential trunk and branch duct profiles

Compatibility

Designed as an OEM-style replacement or new-installation zone damper for residential and light commercial forced-air HVAC zoning systems requiring a bottom-mount, no-actuator two-position damper in a 26x8 inch duct opening.

Installation Notes

Installation should be performed by a qualified HVAC technician following applicable mechanical codes. Power down the air handler and zone control panel before installing or wiring the damper and actuator assembly. Verify the selected actuator shaft coupling matches the 5/8-to-1/2 inch shaft before mounting. Secure the damper in the duct per the manufacturer instructions and confirm blade travel is unobstructed before restoring system power.