Reznor 43845 Motor/Wheel Assy 320720-756 Reliable Paddle Seal: The Buna

Reliable Paddle Seal: The Buna N paddle design provides ANSI Class IV seat leakage protection for efficient energy management

the 100167772 integrates pump relay logic

Precision Fault Detection: Utilizes microprocessor logic to identify phase unbalance and short circuits more accurately than standard relays

the 'S' suffix typically denotes a service part or a superseding part number that maintains the same electrical specifications and physical dimensions as the original factory component

Reliable Performance: Forged brass construction stands up to aggressive water conditions and demanding mechanical environments

Reznor 43845 Motor/Wheel Assy 320720-756 Reliable Paddle Seal: The BunaThe Reznor 43845 Motor Wheel Assy is a drop in 115V Inducer Motor Wheel Assy designed for critical combustion management in commercial and industrial heating applications. This OEM draft inducer replacement is engineered to handle the high static pressure requirements of the Reznor HRPD series, including HRPD 250, 300, 350, 400, and 500 models. As a veteran technician knows, maintaining the correct airflow across the heat exchanger is non negotiable