Description
The Reznor 209122 Fan Blade Udap/S is a centrifugal airflow component that generates and directs air movement within heating equipment by converting motor-driven rotation into controlled ventilation. It operates by drawing air through the system and distributing it across heat exchange surfaces to support proper thermal transfer. Within HVAC systems, it is used in unit heaters and air circulation assemblies to maintain consistent airflow for heating processes. It is typically fitted onto the motor shaft during the service process inside the blower section and supports stable airflow balance, improved heat distribution, and reliable overall system performance under continuous operating conditions.









