Designed with a fixed

enhancing overall system performance

The internal Bourdon tube and bimetal spiral spring components deliver ASME Type B accuracy

Constructed from galvanized steel with a secure aluminum hub

Carrier 322848-751 Replacement Kit 30067439-890 Designed with a fixedThe Carrier 322848 751 Replacement Kit is a critical OEM furnace control board upgrade designed for veteran HVAC technicians servicing older Carrier, Bryant, and Payne fan coil units. This comprehensive kit provides a direct path to modernize fan blower control board systems in FA4A, FB4A, and FC4B models manufactured prior to 1994. Engineered to replace obsolete HK61GA001 and HK61GA003 Texas Instruments boards, this assembly integrates a new