York S1-029-20423-030 Orifice 321702-401 It functions by creating negative

It functions by creating negative pressure within the heat exchanger

33 Amp rating with robust insulation to withstand standard operating temperatures in air-over environments

Leak Prevention: High-tensile elastomer construction prevents air leakage

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

though it is vital to verify specific manifold requirements

York S1-029-20423-030 Orifice 321702-401 It functions by creating negativeThe 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