Io Hvac Controls MD-3208-BM Rectangular Zone Damper 32x8 in

Product Description

The IO HVAC CONTROLS MD-3208-BM is a rectangular 2-position zone damper sized at 32 inches wide by 8 inches tall, fitted with a Belimo 3-wire actuator in a bottom-mount configuration. Zone dampers control airflow through individual duct branches in forced-air HVAC systems, opening and closing on demand from a zone controller or thermostat. The Belimo 3-wire actuator provides spring-return operation, ensuring a defined fail-safe position on power loss. This unit ships at approximately 11.76 pounds and is sized for medium to large residential or light commercial duct runs. Licensed HVAC technicians handle specification, procurement, and installation of this component.

The MD-3208-BM is designed for ducted forced-air zoning systems in residential and light commercial applications where independent temperature control is required across multiple zones. A 32 by 8 inch rectangular form factor fits standard rectangular ductwork of the same nominal size. The bottom-mount actuator position suits installations where duct access is limited to the lower face of the fitting. This damper integrates into multi-zone control systems alongside compatible zone control panels and thermostats.

Key Features

• 32 inches by 8 inches rectangular blade matches standard nominal duct sizing
• 2-position operation - fully open or fully closed for straightforward zone control
• Belimo 3-wire actuator with spring-return fail-safe on power loss
• Bottom-mount actuator configuration for restricted-access duct installations
• Packaged weight of 11.76 pounds for single-unit shipment

Compatibility

Designed as an OEM-style replacement or new-installation zone damper for rectangular ducted forced-air HVAC zoning systems using Belimo 3-wire actuator wiring schemes.

Installation Notes

Installation is performed by a licensed HVAC technician. De-energize the zone control panel and disconnect power to the air handler before beginning damper installation or actuator wiring. Secure the damper body to the duct section per standard sheet metal practice before connecting actuator control wiring to the zone panel. Verify actuator spring-return direction and end-stop positions before restoring power and commissioning the zone control system.