Io Hvac Controls MD-3026 Rectangular Zone Damper 30x26

Product Description

The IO HVAC CONTROLS MD-3026 is a rectangular, 2-position zone damper sized at 30 inches by 26 inches and fitted with a Belimo 3-wire actuator. Zone dampers control airflow to individual zones in a ducted HVAC system, opening or closing on a call from a zone controller or thermostat. The Belimo 3-wire actuator provides spring-return fail-safe operation, moving the blade to a defined position on power loss. At 18 pounds, this is a substantial unit intended for larger rectangular duct openings in commercial or residential zoning applications. Licensed HVAC technicians are the primary installers.

This damper is suited for forced-air zoning systems where individual rooms or areas require independent temperature control. The 30 x 26 inch rectangular form factor fits larger trunk or branch duct runs common in light commercial and larger residential installations. The 2-position control logic works with standard zone control panels that output a 24-volt open or close signal to the Belimo actuator, making integration with most residential and light commercial zoning systems straightforward.

Key Features

• 30 x 26 inch rectangular blade fits larger duct openings in zoned forced-air systems
• Belimo 3-wire actuator included - supports spring-return fail-safe operation
• 2-position control logic compatible with standard 24-volt zone control panels
• Heavy-duty construction at 18 pounds for durable, long-term duct installation
• Rectangular form factor suits trunk and branch duct configurations in light commercial and residential builds

Compatibility

Designed as an OEM-style replacement or new-installation zone damper for rectangular duct systems using Belimo 3-wire actuator wiring configurations in residential and light commercial forced-air zoning setups.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with ducted zoning systems and low-voltage control wiring. Shut down the air handler and de-energize the zone control panel before cutting into ductwork or connecting actuator wiring. Secure the damper to the duct with sheet metal screws and seal all edges to prevent air bypass. Low-voltage wiring to the Belimo actuator must comply with NEC Class 2 circuit requirements.