The Rheem-Ruud 51-102728-02 Outdoor ECM Motor is a high-efficiency variable-speed motor designed for Rheem and Ruud outdoor HVAC units. It controls fan operation by adjusting motor speed to match system demand, ensuring optimal airflow and performance. This electronically commutated motor reduces energy consumption, minimizes noise, and enhances overall system efficiency. Built for du... https://www.partshnc.com/51-102728-02-rheem-ruud-outdoor-ecm-motor