Resideo RRD6 Damper 321042-401 Enhanced System Protection: Integrated FM911

Enhanced System Protection: Integrated FM911 backflow preventer prevents cross-contamination and maintains constant system pressure

Field-drilling often results in inconsistent gas flow and incomplete combustion

This is the inducer wheel itself

and constant flame rectification sensing

Advanced Desiccant Core: Engineered for superior moisture and acid removal

Resideo RRD6 Damper 321042-401 Enhanced System Protection: Integrated FM911The Resideo RRD6 Damper is a precision engineered 6 inch retrofit round damper designed for seamless integration into existing rigid or flexible ductwork. This HVAC zoning damper utilizes a 24Vac, three wire, power open power closed floating actuator, providing superior control over airflow compared to standard spring return models. Built for high cycle reliability, the RRD6 features a robust Resideo damper motor that maintains position without