Carrier 17122000002587 Circuit Board 340155-7024 provided the boiler’s BTU output

provided the boiler’s BTU output does not exceed the valve’s 105

You will replace the internal spring and external burner orifices using the components provided

Always verify the inducer motor is reaching full RPM and the venting is clear before replacing the switch

and similar materials

The Armstrong Furnace R44957-001 Control is a critical OEM replacement ignition blower control designed to manage the combustion and air circulation cycles in high-efficiency heating systems

Carrier 17122000002587 Circuit Board 340155-7024 provided the boiler’s BTU outputThe Carrier 17122000002587 Main Circuit Board is a critical OEM replacement component engineered for high performance Carrier ductless mini split systems and select heat pump models. As the primary control board, it manages the communication between the indoor and outdoor units, regulating vital operations including compressor frequency, fan motor speeds, and electronic expansion valve (EEV) positioning. Designed to replace legacy part numbers like