Io Hvac Controls MBD-1412 Manual Balancing Damper 14x12

Product Description

The IO HVAC CONTROLS MBD-1412 is a manual balancing damper designed to regulate airflow in ductwork systems. It features a locking quadrant that allows technicians to set and hold a fixed blade position, maintaining consistent airflow distribution across zones. The unit measures 14 inches wide by 12 inches in duct opening size and weighs 6.45 pounds. HVAC technicians install this damper during system balancing to dial in airflow to individual zones or branches without requiring power or controls wiring.

This damper is suited for residential and light commercial HVAC systems where manual airflow balancing is preferred over automated zone control. It installs into rectangular duct runs and is commonly used in new construction and retrofit applications where airflow to a specific zone or branch needs to be throttled and locked at a set position. The locking quadrant prevents accidental adjustment after the system has been balanced.

Key Features

• Locking quadrant holds blade at a fixed position after balancing
• 14 x 12 inch duct opening for compatibility with standard rectangular ductwork
• Manual operation requires no wiring, controls, or power supply
• Compact depth of 8 inches suits tight duct chases and mechanical spaces
• Weighs 6.45 pounds for straightforward single-technician installation

Compatibility

Designed as an OEM-style replacement or new-installation manual balancing damper for standard rectangular duct systems requiring a 14 x 12 inch opening.

Installation Notes

Installation is typically performed by a licensed HVAC technician. Power to the air handling unit should be shut off before working inside the duct system. The damper is secured into the duct run using sheet metal screws and sealed with foil tape or mastic per applicable mechanical codes. Once airflow is balanced and verified, the locking quadrant should be tightened to prevent blade movement.