makes it a rugged

preventing the safety risks and calibration errors often associated with generic alternatives

It is compatible with a wide range of AO Smith and Lochinvar models

as these two part numbers are functionally identical

Always check the union series stamped on the fitting before replacement

York S1-031-02987-000 Control Board Freon makes it a ruggedThe York S1 031 02987 000 Reheat Control Board is a critical OEM replacement part designed for industrial and commercial HVAC systems, specifically those requiring precise humidity control and dehumidification. Engineered to manage hot gas reheat cycles, this board ensures optimal climate stability by coordinating with the refrigerant circuit and blower timing. As a genuine York control board, it provides a direct fit solution for commercial rooftop