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Rosewood paper grain — description and returns beneath the overlapping buy card.
The York S1-031-01958-000 Selection Board is a critical OEM component engineered for precise airflow calibration in high-efficiency variable-speed fan coil units
and high-impedance flame sensor electrode necessary for reliable signal feedback to the integrated control board
They are the same technical component and are interchangeable for 1/2" flare configurations
This CCW blower wheel turns counter-clockwise
maintaining the same 1/2" solder footprint for easy field replacement
Lochinvar & A.O. Smith 100112867 Flow Switch 30067439-890 The York S1-031-01958-000 Selection BoardThe Lochinvar & A. O. Smith 100112867 is a mission critical outdoor flow switch engineered to maintain high precision monitoring of fluid movement within hydronic heating and pool systems. As a direct OEM replacement for obsolete parts 100232493, WTR2041, WTR2041K, and WTR2141, this component ensures seamless system compatibility and prevents dry fire conditions that lead to heat exchanger failure. For the seasoned technician, this 100112867 flow