the 78F9001 is simply the extended factory part number for the standard 78F90 motor

For differential sensing

Rugged Construction: Built as a hermetic compressor to withstand the rigorous duty cycles of commercial refrigeration environments

Rated as a L280-40F furnace limit switch

You should verify the valve body size

Heil Quaker ICP 1177025 Blower Wheel 322027-701 the 78F9001 is simply theThe Heil Quaker ICP 1177025 Blower Wheel is a critical OEM component designed for high efficiency airflow within International Comfort Products (ICP), Heil, Tempstar, Comfortmaker, and Arcoaire residential air handlers and gas furnaces. This assembly features an 11 inch diameter and a 10. 5 inch width, engineered for a precise fit within the blower housing to maintain static pressure requirements. With a 1 2 inch bore diameter and counterclockwise