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Enhanced Combustion Geometry: The 22-inch configuration is designed to maximize gas throughput while maintaining flame stability across the entire burner assembly
Enhanced System Protection: Integrated FM911 backflow preventer prevents cross-contamination and maintains constant system pressure
and constant flame rectification sensing
Field-drilling often results in inconsistent gas flow and incomplete combustion
It serves as a universal replacement for over 40 competitive models
Resideo RRD6 Damper 321042-401 Enhanced Combustion Geometry: The 22-inchThe 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