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The IO HVAC CONTROLS MBD-2214 is a manual balancing damper designed for airflow regulation in ducted HVAC distribution systems. The damper ships at 22 inches by 14 inches and uses a locking quadrant mechanism to hold blade position after adjustment, preventing unintended drift once airflow is set. At 9.5 pounds, it is a solid, field-ready unit suited for installation in rectangular duct runs where zone balancing or static pressure control is required. HVAC technicians and sheet metal installers are the primary trades that specify and install this damper in both new construction and retrofit applications.
This damper is suited for residential and light commercial forced-air systems where manual airflow balancing is needed across multiple zones or branch runs. Typical installations include supply trunk takeoffs, branch duct runs, and air handler distribution systems where a technician needs repeatable, lockable blade positioning. The locking quadrant allows settings to be confirmed and secured without additional hardware after commissioning.
Designed as an OEM-style manual balancing damper for rectangular duct systems requiring a 22 inch by 14 inch nominal opening with a locking quadrant blade control.
Installation is performed by a licensed HVAC technician or qualified sheet metal installer. The air handling system should be powered down and the supply fan de-energized before fitting the damper into the duct run. Secure the damper per sheet metal fastening practices and verify blade movement through the full range before locking the quadrant at the desired position. Local mechanical codes and SMACNA duct construction standards should be consulted for fastener spacing and sealing requirements.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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