Io Hvac Controls MD-2406-BM Rectangular Zone Damper 24x6

Product Description

The IO HVAC CONTROLS MD-2406-BM is a rectangular two-position zone damper sized at 24 inches wide by 6 inches tall, fitted with a Belimo three-wire actuator mounted on the bottom of the unit. It is designed to control airflow in ducted HVAC zoning systems by opening and closing on command from a zone control board or thermostat. The bottom-mount actuator configuration suits tight duct runs where side access is limited. Licensed HVAC technicians install this damper as part of residential or light-commercial zoning layouts. At 8 pounds, it is a manageable single-tech installation in most attic, basement, or mechanical-room duct configurations.

This damper is suited for rectangular duct zoning applications in forced-air systems, both residential and light-commercial. The Belimo three-wire actuator allows spring-return or end-switch-driven operation depending on control board wiring. It fits standard rectangular duct openings where the 24-inch by 6-inch nominal size matches the existing ductwork. Typical install scenarios include multi-zone split systems, heat pumps, and gas furnace air handlers where independent room or floor control is required.

Key Features

• 24 inches x 6 inches nominal rectangular form factor fits standard duct openings
• Belimo three-wire actuator provides reliable two-position open/close operation
• Bottom-mount actuator configuration accommodates restricted side-clearance installations
• Two-position operation integrates with standard zone control boards and low-voltage thermostats
• 8-pound unit weight supports single-technician handling during installation

Compatibility

Designed as an OEM-style replacement or new-installation zone damper for rectangular ducted forced-air HVAC zoning systems using Belimo three-wire actuator wiring schemes.

Installation Notes

Installation should be performed by a licensed HVAC technician in accordance with applicable mechanical codes. Power down the air handler and de-energize all zone control boards before wiring or mounting the damper. Secure the damper firmly to the duct collar to prevent air bypass around the frame. Verify actuator wiring polarity and end-switch configuration against the zone control board specifications before restoring power.