Armstrong Furnace ANGKT555-1 Kit

The Armstrong Furnace ANGKT555-1 Conversion Kit is a field-installed assembly designed to convert 80% and 90% AFUE gas furnaces from Liquefied Petroleum (LP/Propane) back to Natural Gas operation. This OEM furnace conversion kit includes precisely calibrated burner orifices and the specific gas valve regulator spring required to ensure proper manifold pressure and safe combustion. Utilizing the manufacturer-specified LP to Natural gas conversion components is critical for maintaining the appliance's input rating and preventing soot accumulation or heat exchanger stress. Contractors should verify the gas valve model and furnace serial number before installation to ensure the ANGKT555-1 orifice kit aligns with the BTU requirements of the specific burner tray. This kit facilitates a seamless transition for residential furnaces originally converted to propane, restoring factory-standard Natural Gas performance without compromising the integrity of the furnace burner assembly.

• Ensures accurate manifold pressure regulation when reverting to Natural Gas.
• Includes OEM-spec burner orifices for consistent flame pattern and BTU output.
• Compatible with a wide range of Armstrong and AirEase gas furnaces.
• Reduces diagnostic time by providing all necessary gas valve conversion components in a single package.
• Critical for maintaining factory efficiency ratings and safe CO emissions levels.

Can I reuse the existing LP spring when converting back to Natural Gas?
No, the regulator spring must be replaced with the one provided in the ANGKT555-1 kit to properly manage the lower pressure required for Natural Gas.

What tools are needed for this gas conversion?
A manometer is essential to verify the outlet pressure at the gas valve, along with a socket or wrench set for the burner orifices.

Is this kit compatible with modulating gas valves?
The Armstrong ANGKT555-1 is typically used for single-stage and two-stage units; always check the specific furnace technical manual for gas valve compatibility.

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.