Io Hvac Controls HD-BM-NA-3210 Zone Damper 32x10

Product Description

The IO HVAC CONTROLS HD-BM-NA-3210 is a two-position zone damper designed for rectangular ductwork in residential and light commercial HVAC zoning systems. Sized at 32 x 10 inches, this bottom-mount damper ships without an actuator, allowing the installer to pair it with a compatible actuator to suit the application. The damper accepts a 5/8-inch to 1/2-inch shaft and provides reliable open/closed airflow control in forced-air zoning setups. At 12.04 pounds, it is a substantial assembly built for stable duct installation. Licensed HVAC technicians are the primary installers for this type of component.

This damper is suited for use in forced-air residential or light commercial zoning systems where airflow to individual zones must be independently controlled. The bottom-mount configuration makes it appropriate for duct runs where actuator access is available from below. Because the actuator is not included, the installer selects and mounts a separate two-position actuator onto the 5/8-inch to 1/2-inch shaft during commissioning. It is commonly installed in horizontal duct runs as part of a multi-zone control system managed by a zone control board.

Key Features

• Two-position operation for open/closed zone airflow control
• 32 x 10 inch duct opening size fits standard rectangular duct
• Bottom-mount design for accessible actuator placement from below
• No actuator included - allows pairing with installer-specified two-position actuator
• 5/8-inch to 1/2-inch shaft compatibility for broad actuator fitment
• 12.04-pound assembly for stable, rigid duct mounting

Compatibility

Designed as an OEM-style replacement or new-installation zone damper for rectangular forced-air duct systems requiring two-position zone control. No specific system or model compatibility was provided by the manufacturer for this listing.

Installation Notes

Installation should be performed by a licensed HVAC technician. Shut down the air handler and de-energize the zoning control system before beginning installation. Secure the damper to the duct using appropriate sheet metal fasteners and seal all connections per local mechanical code requirements. Mount and wire the actuator to the shaft only after the damper body is fully installed and the shaft alignment is confirmed.