Io Hvac Controls LD-2412-BM Rectangular Zone Damper

Product Description

The IO HVAC CONTROLS LD-2412-BM is a 24 x 12 inch rectangular two-position zone damper designed for residential and light commercial HVAC zoning systems. It features a 3-wire actuator with an LED indicator and a bottom-mount configuration. The damper controls airflow through a single zone by opening and closing in response to a zone control board or thermostat signal. Licensed HVAC technicians typically install this damper inside a duct trunk or branch run as part of a multi-zone forced-air system. The LED indicator provides a quick visual confirmation of the damper's open or closed position without requiring additional test equipment.

This damper is sized for large rectangular duct applications at 24 x 12 inches, making it suitable for main trunk branches or high-volume zone runs in residential or light commercial forced-air systems. The bottom-mount actuator orientation is useful when overhead access is limited or when the duct run is positioned to allow service from below. It is typically installed in conjunction with a dedicated zone control board, bypass damper, and individual zone thermostats as part of a complete zoning layout.

Key Features

• 24 x 12 inch rectangular duct opening for high-volume zone runs
• Two-position operation: fully open or fully closed for reliable zone control
• 3-wire actuator compatible with standard zone control board wiring configurations
• Integrated LED indicator provides visual confirmation of damper position
• Bottom-mount actuator design accommodates overhead and space-restricted installations

Compatibility

Designed as an OEM-style replacement or new-installation zone damper for rectangular duct systems requiring a 24 x 12 inch two-position damper with a 3-wire bottom-mount actuator.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with forced-air zoning systems. Shut down the air handler or furnace and de-energize the zone control board before wiring or mounting the damper. The damper must be secured to the duct with sheet metal screws and sealed with approved duct tape or mastic to prevent air bypass. Follow the zone control board manufacturer's wiring diagram for proper 3-wire actuator connections.