Technicians can raise the opening point by turning the range adjusting screw counterclockwise

While some universal motors may fit

Optimized Combustion: The 4-cell burner design facilitates a stable flame pattern

With three tries for ignition before safe lockout

and crank arm specifically for 1/2-inch damper shafts

Reznor 14474 Blower Bearing 323613-751 Technicians can raise the openingThe Reznor 14474 Blower Bearing is a critical industrial grade component designed to support the blower shaft in heavy duty commercial unit heaters and rooftop HVAC systems. Featuring a precise 1 3 16 inch bore diameter, this bearing ensures stabilized rotational momentum, which is essential for maintaining consistent airflow and preventing catastrophic shaft failure. As an OEM Reznor replacement part, it is engineered to handle the high torque