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The HART COOLEY r22 06 brn is a 6-inch round metal damper assembly designed for use with 6-inch round ductwork in forced-air HVAC distribution systems. This damper provides manual airflow control within a duct run, allowing technicians to balance air delivery across zones or individual supply branches. The assembly is constructed of metal for durability in standard residential and light commercial duct applications. It is installed by licensed HVAC technicians during new construction, duct retrofits, or system rebalancing work.
This damper assembly is sized for 6-inch round duct, making it a common fit for residential forced-air systems where branch runs feed individual supply boots. It is noted for compatibility with the 6-inch 1500-series metal duct fittings, based on supplier product data. Typical installations involve trunk-and-branch duct layouts where zone-by-zone airflow balancing is required.
Designed for use with 6-inch 1500-series round metal duct assemblies as noted in supplier documentation. Intended as an OEM-style replacement or new-installation component for standard 6-inch round duct systems.
Installation is typically performed by a licensed HVAC technician. Power down the air handling unit and close the gas or electrical supply to the system before working inside the duct system. Secure the damper assembly into the duct fitting per standard sheet metal practices and verify the damper blade operates freely through its full range before sealing connections. Follow local mechanical codes and SMACNA duct construction standards for fastening and sealing requirements.
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