York S1-1NP0501 Conversion Kit

The York S1-1NP0501 LP Conversion Kit is a critical component for field-converting York gas-fired furnaces from natural gas to liquid propane. Specifically engineered for 130,000 BTU 1-stage residential furnaces—including the TG8S130D20MP11A series—this kit provides the precise #56 orifice sizes required for proper combustion and furnace manifold pressure adjustment. As a veteran-grade OEM propane conversion kit, it includes the essential White-Rodgers gas valve springs and a dedicated gas line pressure switch to ensure system safety. When the LP fuel supply pressure drops below 6" w.c., the integrated switch triggers a furnace lockout to prevent hazardous operation. This kit bypasses the need for generic parts, maintaining energy efficiency and OEM performance standards. Utilizing York S1-1NP0501 guarantees a seamless gas-to-propane transition, providing the reliability that contractors demand on the job site for 33-inch chassis models without compromising on HVAC system compatibility or safety protocols.

• Precise Fuel Transition: Engineered specifically for 130,000 MBH single-stage furnaces to ensure optimal fuel-to-air ratios.
• Enhanced Safety Logic: Includes a low-pressure gas switch that prevents unit operation if propane levels fall below safe thresholds.
• OEM Standards: Features a high-quality #56 burner orifice and White-Rodgers burner components for exact fitment and longevity.
• Reliable Monitoring: Facilitates manifold pressure adjustment to 10" w.c. or specified ratings for consistent heating performance.

Which furnace models are compatible with this conversion kit?
This kit is purpose-built for the TG8S130D20MP11A and other York 130K BTU 33-inch chassis gas-fired furnaces. Always verify your model number prior to installation.

Does this kit include a pressure switch?
Yes, the York S1-1NP0501 includes a gas line pressure switch and the necessary wiring harness to integrate with the existing flame sensor and ignition control circuit.

What orifice size is provided in the S1-1NP0501 kit?
The kit utilizes #56 orifices, which are the technical standard for high-capacity 130,000 BTU York 1-stage furnaces converting to liquid propane at standard altitudes.

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.