Io Hvac Controls MD-1414 Rectangular Zone Damper 14x14

Product Description

The IO HVAC CONTROLS MD-1414 is a 14 x 14 inch rectangular, 2-position zone damper designed for duct zoning applications in forced-air HVAC systems. It ships with a Belimo 3-wire actuator, providing reliable open and closed position control without the need for a separate actuator purchase. The 3-wire configuration supports both spring-return and non-spring-return wiring schemes depending on system design. Licensed HVAC technicians install this damper inline within ductwork to divide a structure into independently controlled comfort zones, reducing energy waste and improving temperature balance across the building.

This damper is suited for residential and light commercial zoning installations where a 14 x 14 inch rectangular duct section is present. It fits inline in standard rectangular sheet metal duct runs and is controlled by a zone control board or zoning panel that supplies 24-volt signals to the Belimo actuator. Typical applications include multi-zone split systems, zoned air handler setups, and retrofit zoning projects where existing ductwork is being divided into independently controlled areas.

Key Features

• 14 x 14 inch rectangular form factor fits standard duct openings of that size
• Belimo 3-wire actuator included - no separate actuator sourcing required
• 2-position operation: fully open or fully closed for straightforward zone control
• Compatible with standard 24-volt zone control panels and controllers
• Package dimensions of 18 x 21 x 8 inches for shipping and storage planning

Compatibility

Designed as an OEM-style replacement or new-installation zone damper for rectangular duct systems requiring a 14 x 14 inch 2-position damper with a Belimo 3-wire actuator interface.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with duct zoning systems and low-voltage wiring. Power down the air handler and de-energize all low-voltage control circuits before beginning installation. The damper must be secured in the duct section according to the manufacturer instructions, and all low-voltage wiring to the actuator should comply with NEC guidelines for class 2 circuits. Verify actuator rotation direction and end-switch wiring against the zone panel specifications before restoring power.