York S1-029-20423-030 Orifice 321702-401 while the snap-action contacts are

while the snap-action contacts are sealed in an epoxy resin to prevent ingress from dust

5" and 4" W

though it is vital to verify specific manifold requirements

protecting integrated control boards

the assembly features a durable housing designed to withstand corrosive flue condensates and high thermal loads

York S1-029-20423-030 Orifice 321702-401 while the snap-action contacts areThe York S1 029 20423 030 Natural Gas Burner Orifice is a precision machined OEM York replacement part designed for specific BTU output requirements in commercial and residential furnaces. Featuring a #30 drill size with a 0. 1285 inch diameter, this orifice is critical for maintaining the correct manifold pressure and stoichiometric air fuel ratio. Field technicians should verify this component against the furnace rating plate to ensure proper