Lennox 11K48 Conversion Kit
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Lennox 11K48 Conversion Kit

Lennox 11K48 Conversion Kit

The Lennox 11K48 NAT to LP Conversion Kit is a field-installed changeover assembly designed to convert Lennox gas furnaces from natural gas to regulated liquid propane (LP) operation. This OEM conversion kit is critical for ensuring correct manifold pressure and burner performance when switching fuel sources. It is specifically engineered for Allied Air 80G2, A802, 95G2, A952, and A962 furnace series. By replacing the natural gas orifices with the high-precision 0.034 LP orifices included in this package, technicians can maintain the proper BTU input and combustion efficiency required for high-altitude or off-grid propane applications. The kit includes a low gas inlet pressure switch and a brass valve fitting, which are essential for monitoring propane supply levels and preventing unsafe operation during low-pressure conditions. Utilizing an LP changeover kit ensures that manifold pressure is correctly regulated, typically to 10.5 inches w.c., which prevents soot buildup and heat exchanger damage associated with improper gas-to-air ratios.

Key Benefits
  • Ensures precise fuel regulation by replacing factory springs with 77W89 LP regulator springs for consistent high and low fire operation.
  • Includes a full set of stamped orifices (0.034) to accommodate multi-burner manifolds and ensure even flame distribution.
  • Integrated low-pressure safety switch prevents the furnace from cycling during propane tank depletion, protecting the gas valve.
  • Provides OEM-compliant labeling including gas converter and nameplate stickers to meet local inspection codes and documentation requirements.
  • Compatible with a wide range of two-stage gas valves found in Lennox and Allied Air equipment, facilitating a seamless field conversion.
Common Questions
  • Which furnace models are compatible with the 11K48 kit? This kit is specifically designed for Lennox and Allied Air units including the A802, 80G2, A952, A962, and 95G2 series.
  • What does the low gas pressure switch do? The S145 pressure switch monitors the incoming LP pressure and will break the circuit to the gas valve if the pressure drops below the safe operating threshold.
  • Can I use this kit for high-altitude installations? While this kit provides the standard 0.034 orifices, installations above 2,000 feet may require additional derating—always consult the venting and combustion tables for your specific elevation.

This item is not eligible for free shipping.

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.

$88.52

Original: $252.91

-65%
Lennox 11K48 Conversion Kit

$252.91

$88.52

Lennox 11K48 Conversion Kit

The Lennox 11K48 NAT to LP Conversion Kit is a field-installed changeover assembly designed to convert Lennox gas furnaces from natural gas to regulated liquid propane (LP) operation. This OEM conversion kit is critical for ensuring correct manifold pressure and burner performance when switching fuel sources. It is specifically engineered for Allied Air 80G2, A802, 95G2, A952, and A962 furnace series. By replacing the natural gas orifices with the high-precision 0.034 LP orifices included in this package, technicians can maintain the proper BTU input and combustion efficiency required for high-altitude or off-grid propane applications. The kit includes a low gas inlet pressure switch and a brass valve fitting, which are essential for monitoring propane supply levels and preventing unsafe operation during low-pressure conditions. Utilizing an LP changeover kit ensures that manifold pressure is correctly regulated, typically to 10.5 inches w.c., which prevents soot buildup and heat exchanger damage associated with improper gas-to-air ratios.

Key Benefits
  • Ensures precise fuel regulation by replacing factory springs with 77W89 LP regulator springs for consistent high and low fire operation.
  • Includes a full set of stamped orifices (0.034) to accommodate multi-burner manifolds and ensure even flame distribution.
  • Integrated low-pressure safety switch prevents the furnace from cycling during propane tank depletion, protecting the gas valve.
  • Provides OEM-compliant labeling including gas converter and nameplate stickers to meet local inspection codes and documentation requirements.
  • Compatible with a wide range of two-stage gas valves found in Lennox and Allied Air equipment, facilitating a seamless field conversion.
Common Questions
  • Which furnace models are compatible with the 11K48 kit? This kit is specifically designed for Lennox and Allied Air units including the A802, 80G2, A952, A962, and 95G2 series.
  • What does the low gas pressure switch do? The S145 pressure switch monitors the incoming LP pressure and will break the circuit to the gas valve if the pressure drops below the safe operating threshold.
  • Can I use this kit for high-altitude installations? While this kit provides the standard 0.034 orifices, installations above 2,000 feet may require additional derating—always consult the venting and combustion tables for your specific elevation.

This item is not eligible for free shipping.

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.

Product Information

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Description

The Lennox 11K48 NAT to LP Conversion Kit is a field-installed changeover assembly designed to convert Lennox gas furnaces from natural gas to regulated liquid propane (LP) operation. This OEM conversion kit is critical for ensuring correct manifold pressure and burner performance when switching fuel sources. It is specifically engineered for Allied Air 80G2, A802, 95G2, A952, and A962 furnace series. By replacing the natural gas orifices with the high-precision 0.034 LP orifices included in this package, technicians can maintain the proper BTU input and combustion efficiency required for high-altitude or off-grid propane applications. The kit includes a low gas inlet pressure switch and a brass valve fitting, which are essential for monitoring propane supply levels and preventing unsafe operation during low-pressure conditions. Utilizing an LP changeover kit ensures that manifold pressure is correctly regulated, typically to 10.5 inches w.c., which prevents soot buildup and heat exchanger damage associated with improper gas-to-air ratios.

Key Benefits
  • Ensures precise fuel regulation by replacing factory springs with 77W89 LP regulator springs for consistent high and low fire operation.
  • Includes a full set of stamped orifices (0.034) to accommodate multi-burner manifolds and ensure even flame distribution.
  • Integrated low-pressure safety switch prevents the furnace from cycling during propane tank depletion, protecting the gas valve.
  • Provides OEM-compliant labeling including gas converter and nameplate stickers to meet local inspection codes and documentation requirements.
  • Compatible with a wide range of two-stage gas valves found in Lennox and Allied Air equipment, facilitating a seamless field conversion.
Common Questions
  • Which furnace models are compatible with the 11K48 kit? This kit is specifically designed for Lennox and Allied Air units including the A802, 80G2, A952, A962, and 95G2 series.
  • What does the low gas pressure switch do? The S145 pressure switch monitors the incoming LP pressure and will break the circuit to the gas valve if the pressure drops below the safe operating threshold.
  • Can I use this kit for high-altitude installations? While this kit provides the standard 0.034 orifices, installations above 2,000 feet may require additional derating—always consult the venting and combustion tables for your specific elevation.

This item is not eligible for free shipping.

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.