Io Hvac Controls MD-2608-BM Rectangular Zone Damper 26x8 in

Product Description

The IO HVAC CONTROLS MD-2608-BM is a rectangular 2-position zone damper designed for forced-air HVAC zoning systems. Measuring 26 inches wide by 8 inches in height, it ships with a Belimo 3-wire actuator mounted to the bottom of the damper body. The 2-position design drives the blade fully open or fully closed on a 24-volt control signal, making it a straightforward fit for residential and light commercial zone control panels. HVAC technicians install this damper in ductwork to regulate airflow to individual zones, allowing a single air handler to serve multiple independently controlled areas.

This damper is suited for rectangular supply or return duct applications in residential and light commercial forced-air systems. The bottom-mount actuator position accommodates duct runs where side access is restricted. Systems using a zone control panel with 24-volt, 3-wire (open-close-common) wiring logic are the primary application. It is typically installed during new zoning system builds or when retrofitting an existing single-zone system into a multi-zone configuration.

Key Features

• 26 x 8 inch rectangular damper body sized for standard rectangular duct
• 2-position operation: fully open or fully closed for simple zone control
• Includes Belimo 3-wire actuator for reliable open and close control signal response
• Bottom-mount actuator configuration for installations with limited side clearance
• Compatible with standard 24-volt zone control panel wiring

Compatibility

Designed as an OEM-style replacement or new-installation zone damper for rectangular duct zoning systems that use a 24-volt, 3-wire actuator control scheme.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with forced-air zoning systems. Power down the air handler and zone control panel before making any wiring connections. The damper is field-mounted into the duct using sheet metal screws around the damper frame, and low-voltage actuator wiring should be run in accordance with NEC guidelines for Class 2 circuits. Verify actuator rotation and blade position during system commissioning before closing up the duct.