York S1-029-20422-052 Pilot Orifice

The York S1-029-20422-052 is a precision-engineered #52 Pilot Orifice designed for integration within gas-fired furnace pilot burner assemblies. Featuring an exact .0635 diameter, this component is critical for metering gas flow to ensure a stable pilot flame, which is necessary for reliable flame rectification and main burner ignition. In the field, technicians encounter these orifices when servicing York, Luxaire, and Coleman equipment where debris or oxidation has compromised the original fuel delivery. This HVAC pilot assembly component is manufactured to strict OEM tolerances to prevent nuisance lockouts caused by weak pilot signals. Utilizing the correct .0635 orifice size is mandatory to maintain the design BTU output and prevent unsafe combustion characteristics. As a heavy-duty furnace ignition component, its brass construction provides the necessary thermal resistance required for the high-heat environment of a burner box, ensuring the pilot flame remains consistent across varying manifold pressures during standard heating cycles.

• Precision Metering: The #52 drill size ensures the exact gas-to-air ratio required for a stable standing or intermittent pilot.
• OEM Compatibility: Direct replacement for York and Johnson Controls heating systems to maintain factory specifications.
• High-Temp Durability: Machined from high-grade brass to resist corrosion and fouling in extreme burner environments.
• Reliable Ignition: Supports proper flame impingement on thermocouples and flame sensors to reduce system downtime.

Common Questions

What is the specific drill size for this York orifice?
This part is a #52 drill size, which translates to a precise decimal diameter of .0635 inches.

Can I clean this orifice if it is clogged?
While some technicians use high-pressure air, it is standard practice to replace the orifice if the .0635-inch bore is compromised, as physical cleaning tools can enlarge the hole and cause over-firing.

Is this orifice used for Natural Gas or Liquid Propane?
This specific orifice size is typically indexed for Natural Gas applications; always verify the manifold pressure and manufacturer conversion charts before installation.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.