Io Hvac Controls MD-3012-BM Zone Damper 30x12 in Rectangular

Product Description

The IO HVAC CONTROLS MD-3012-BM is a rectangular two-position zone damper sized at 30 inches wide by 12 inches tall, designed for residential and light commercial HVAC zoning systems. It ships with a Belimo three-wire actuator mounted to the bottom of the damper frame. Two-position actuators drive the blade fully open or fully closed on demand from a zone control board, making this a straightforward, reliable choice for forced-air zoning applications. At 12 pounds, the unit is robust enough for in-duct installation without additional support in most standard sheet-metal duct configurations.

This damper is intended for use in forced-air zoning systems where individual zones require independent airflow control. The bottom-mount actuator configuration suits installations where overhead or side-mount clearance is limited inside a mechanical room, basement, or attic duct run. HVAC technicians install this damper inline in rectangular ductwork as part of a multi-zone system managed by a compatible zone control panel. It is appropriate for new construction and retrofit zoning projects in residential and small commercial buildings.

Key Features

• 30 x 12 inch rectangular damper frame fits standard duct openings of that size
• Two-position operation delivers fully open or fully closed blade positioning
• Belimo three-wire actuator included, factory-mounted to the bottom of the frame
• Bottom-mount actuator placement preserves side and top clearance in tight duct chases
• Sturdy construction at 12 pounds supports reliable long-term in-duct service

Compatibility

Designed as an OEM-style zone damper for rectangular duct zoning systems using two-position, three-wire Belimo-style actuator controls compatible with standard 24-volt zone control boards.

Installation Notes

A licensed HVAC technician should install this damper. De-energize the zone control panel and air handler before beginning any duct or wiring work. The damper is wired to the zone board using the three-wire actuator leads per the zone controller manufacturer's low-voltage wiring diagram. Ductwork connections should be sealed per local mechanical code to prevent air leakage around the damper frame.