York S1-331-02979-000 Control Board 30067439-890 this unit ensures the valve

this unit ensures the valve remains in the shut position when power is removed

loop-powered device

Using it on 60Hz power may lead to overheating or irregular magnetic pull

which facilitates cooler operation and higher thermal efficiency in demanding residential or commercial boiler environments

York S1-331-02979-000 Control Board 30067439-890 this unit ensures the valveThe York S1 331 02979 000 Control Board is a specialized OEM replacement part designed for integration into York, Source 1, and Johnson Controls HVAC systems, particularly high efficiency heat pumps and rooftop units. As a direct S1 331 09171 000 replacement, this Simplicity Kit 1 2 4 Pipe board serves as the primary HVAC central processing unit, orchestrating critical sequences of operation for both heating and cooling cycles. Field technicians