Lennox 89M57 Gas Valve Els PW 17895 verify the wiring schematic of

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Lennox 89M57 Gas Valve Els PW 17895 verify the wiring schematic ofThe Lennox 89M57 is a critical OEM replacement gas valve designed for single stage heating legacy systems. This 24V gas valve is factory configured for natural gas with a 3. 5" WC manifold pressure setting, though it often includes a propane conversion kit for versatile field application. Engineered for precision, the unit features a 1 2" NPT inlet and outlet, ensuring a direct fit for standard gas manifold assemblies. As a veteran grade HVAC