Heavy-Duty Brass Construction: Machined from 65/35 brass for maximum durability and resistance to mechanical pullout

factory-calibrated response necessary to protect the unit's cabinet and surrounding structure

While some older sensors share similar pin configurations

Frequent tripping usually indicates poor combustion air supply

always verify your specific valve's media rating

York S1-029-20422-056 Orifice Heavy-Duty Brass Construction: Machined fromEnsure reliable ignition in gas fired heating systems with the York S1 029 20422 056 Pilot Orifice. Specifically engineered for use in York branded HVAC units and gas control applications, this #56 Pilot Orifice features a precise . 0465 inch diameter to regulate the fuel to air ratio required for consistent pilot flame stability. As an authentic OEM replacement part, the S1 029 20422 056 is critical for maintaining the proper gas flow to the pilot