York S1-029-20423-030 Orifice 328140-751 allowing for 1 to 6

allowing for 1 to 6 defrost occurrences per day with a minimum 4-hour interval between operations

ensuring tight shut-off and high performance in balanced 3-way mixing applications

this factory-authorized part ensures the diagnostic logic remains consistent with original equipment specifications

Featuring a 2-inch NPT connection and a substantial 34 Cv flow factor

the FAN3130 provides a direct drop-in solution

York S1-029-20423-030 Orifice 328140-751 allowing for 1 to 6The 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