Always verify the nameplate amperage against your system's ratings to ensure it falls within the 3

We recommend installing an expansion tank or clearing the waterways by briefly operating the test lever

Chemical Resilience: High-quality gaskets resistant to common industrial refrigerants and ester/mineral oils

3-inch frame and Class B insulation for sustained operation in high-temperature flue environments

Compact Manifold Integration: The 3/4" female NPT inlet and outlet provide high flow capacity while maintaining a standard footprint for HVAC gas valve replacement

Lennox 15W11 Expansion Valve R-407A Always verify the nameplate amperageThe Lennox 15W11 Expansion Valve (model 100254 05) is an OEM indoor coil expansion valve specifically engineered for high performance HVACR systems. As a critical metering device, this TXV precisely regulates R 410A refrigerant flow into the evaporator coil, adjusting based on thermal load to maintain exact superheat levels. By preventing compressor slugging and evaporator starvation, the Lennox 15W11 ensures the refrigeration cycle operates at peak