Io Hvac Controls HD-BM-NA-3012 Zone Damper 30x12

Product Description

The IO HVAC CONTROLS HD-BM-NA-3012 is a two-position zone damper designed for ductwork airflow control in forced-air HVAC zoning systems. Built for a 30 x 12 inch duct opening, this bottom-mount damper ships without an actuator, allowing the installer to pair it with a compatible actuator that meets the job's torque and control requirements. The 5/8-to-1/2 inch shaft accommodates standard actuator mounting hardware. At 12.04 pounds, the unit is sized for commercial-grade or larger residential duct runs where precise zone isolation is required. Licensed HVAC technicians performing zone system installations or retrofits are the primary installers.

This damper is suited for residential and light-commercial forced-air zoning applications where individual zones must be opened or closed based on thermostat demand. It is intended for rectangular duct systems requiring a bottom-mount configuration, typically in horizontal duct runs where the actuator mounts below the damper body. The no-actuator configuration is common in multi-zone projects where the contractor sources actuators separately to standardize control voltage or communication protocol across the system.

Key Features

• Two-position operation for open/closed zone airflow control
• Bottom-mount design for horizontal duct installation where under-duct actuator placement is required
• Ships without actuator, allowing pairing with installer-selected two-position or modulating actuator
• 5/8-to-1/2 inch shaft for compatibility with standard actuator couplings
• Fits 30 x 12 inch rectangular duct openings
• Sturdy construction at 12.04 pounds for stable installation in larger duct runs

Compatibility

Designed as an OEM-style replacement or new-installation zone damper for rectangular forced-air duct systems requiring a 30 x 12 inch two-position bottom-mount damper with a 5/8-to-1/2 inch actuator shaft.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with zoning system controls and ductwork. Shut down the air handler and disconnect power to the zone control board before mounting the damper or wiring any actuator. Select an actuator rated for the appropriate control voltage and torque for the duct size before completing the installation. Follow local mechanical codes and the zone control manufacturer's wiring guidelines when integrating with the zone panel.