the cast iron pump body is designed for closed-loop hydronic heating applications

Durable Construction: Features a rugged steel housing with a corrosion-resistant finish for industrial environments

An open coil or stuck contacts indicate the need for a replacement

and UDZ series

Fasco B24220 Blower Assembly 318518-761 the cast iron pump bodyThe Fasco B24220 Blower Assembly is a high performance centrifugal blower designed for precise airflow management in residential and commercial HVAC applications. Engineered with a shaded pole motor, this unit operates at 120V and pulls 1. 3 Amps, delivering a consistent 2600 RPM. The 4. 7 inch wheel diameter is optimized for static pressure efficiency, making it a reliable Fasco blower replacement for furnace draft inductors and small exhaust