York 1NP0457 Propane Kit

The York 1NP0457 Propane Kit is an essential OEM component designed for field-converting natural gas furnaces to liquid propane (LP) operation. As a technical professional, you recognize the necessity of precise combustion tuning; this S1-1NP0457 LP conversion kit provides the specific burner orifices and gas valve regulator springs required to maintain BTU input accuracy and flame stability. Engineered for high-efficiency and standard-efficiency York residential furnaces, the kit ensures the manifold pressure is properly calibrated for the higher energy density of propane. Utilizing a genuine furnace propane conversion kit is critical for preventing sooting, CO production, and premature heat exchanger fatigue. Each component in this HVAC propane conversion set is manufactured to tight tolerances to ensure long-term reliability in demanding heating applications.

Key Benefit List:

• Precise Fuel Transition: Features specific #55 burner orifices (typical) to ensure stoichiometric combustion when switching from natural gas to LP.
• OEM Compatibility: Designed specifically for York, Coleman, and Luxaire induced-combustion furnaces to maintain original equipment performance.
• Pressure Regulation: Includes necessary gas line pressure switches and valve components to adjust manifold gas pressure to the required 10"–11" W.C. range.
• Safety Compliance: Helps contractors meet National Fuel Gas Code requirements for safe LP gas appliance operation.

Common Question Section:

• Which furnace models are compatible with the 1NP0457 kit? This kit is compatible with specific York 80% and 90%+ AFUE induced-combustion furnaces; always verify your specific model number and gas valve type (e.g., White-Rodgers) in the unit's technical guide before installation.
• Does this kit include the gas line pressure switch? Yes, the S1-1NP0457 typically includes the 17471 gas line pressure switch and the 18095 tapped gas pipe nipple for a complete burner manifold conversion.
• Is professional installation required for this conversion? Absolutely. Converting an appliance to propane requires specialized tools for measuring manifold pressure and performing combustion analysis to ensure safe, efficient operation.

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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.