York S1-031-03010-000 Control Board 319852-301 This is a 2-way normally

This is a 2-way normally closed valve

or Luxaire equipment requiring a power ventor induction seal

What capacitor is required for the Nordyne 621912

an "Open High" model (O10-1402 or similar) is required

though you must verify the specific expansion valve (TXV/piston) compatibility for your application

York S1-031-03010-000 Control Board 319852-301 This is a 2-way normallyThe York S1 031 03010 000 Control Board is a genuine OEM single stage furnace control board engineered for precise sequencing and monitoring of York, Coleman, and Luxaire gas fired furnaces. This HVAC replacement circuit board functions as the primary logic controller, managing critical sequences including the hot surface igniter (HSI), inducer fan motor operation, and multi speed blower timings. As the designated York furnace part for modernizing