pitted or welded contacts

Direct OEM Compatibility: Specifically engineered for McDonnell & Miller 63 Series units

including the BI2

Always verify the amperage rating of your load matches the contact capacity on the relay casing before installing in a non-specified model

If those check out with a manometer

Reznor 269853 Conversion Kit 30067439-890 pitted or welded contactsWhen transitioning a Reznor unit heater from propane to natural gas, the Reznor 269853 conversion kit provides the necessary hardware for a field ready fuel swap. This gas conversion kit is specifically engineered for Reznor UDAP, UDAS, UDBP, and UDBS models in 100 and 125 sizes, ensuring the manifold pressure and thermal output align with factory benchmarks. The 100% genuine Reznor 269853 package includes precisely sized burner orifices and the