Io Hvac Controls HD-BM-NA-3212 Zone Damper 32x12

Product Description

The IO HVAC CONTROLS HD-BM-NA-3212 is a two-position zone damper designed for ducted HVAC zoning systems. It ships without an actuator, allowing the installing technician to pair it with a compatible actuator to match the application. The damper features a bottom-mount configuration and a 5/8-to-1/2 inch shaft, accommodating standard actuator drive connections. At 32 inches wide by 12 inches tall, this unit fits larger rectangular duct runs common in commercial and residential forced-air systems. Weighing 13.04 pounds, it is a substantial assembly suited for high-volume airflow zones.

This damper is used in forced-air zoning applications where airflow must be directed or restricted to specific areas of a building. It is appropriate for both residential multi-zone systems and light commercial installations. The bottom-mount bracket configuration is selected when the duct layout requires the actuator to be positioned along the lower face of the damper assembly. Technicians installing larger trunk-line dampers or supply-side zone controls will find the 32 x 12 inch size suited to high-capacity duct sections.

Key Features

• Two-position operation for open/closed zone control in forced-air systems
• Ships without actuator, allowing field selection of compatible drive unit
• Bottom-mount bracket configuration for specific duct orientation requirements
• 5/8-to-1/2 inch shaft accommodates standard actuator coupling sizes
• 32 x 12 inch face size fits larger rectangular duct runs
• Substantial 13.04-pound construction for durability in continuous-cycle applications

Compatibility

Designed as an OEM-style replacement or new-installation zone damper for rectangular ducted forced-air zoning systems requiring a 32 x 12 inch two-position damper with bottom-mount actuator positioning.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with zoning system wiring and duct modification. Shut down the air handler and disconnect power to the zone control panel before beginning installation. The damper is supplied without an actuator and requires a separately sourced, compatible actuator rated for the shaft diameter before the assembly can be commissioned. Follow the zoning system manufacturer wiring instructions and applicable mechanical codes when integrating the damper into the zone control circuit.