Lochinvar & A.O. Smith 100135290 Burner Assembly Els PW 17895 75 to 4 PSI/°F to

75 to 4 PSI/°F to match specific zone requirements

eliminating wiring modifications or calibration issues

This ensures the conductance liquid level sensor maintains an accurate circuit with the boiler water at all times

Versatile Installation: Integrated 1/2" female NPT threads allow for seamless integration into standard piping systems

This kit is specifically designed for Reznor UD and UB series (including UDX

Lochinvar & A.O. Smith 100135290 Burner Assembly Els PW 17895 75 to 4 PSI/°F toThe Lochinvar and A. O. Smith 100135290 Burner Assembly is a direct OEM replacement engineered for high efficiency commercial water heaters and boilers. This assembly, cross referenced as BNR3400, features an integrated pressure tap for precise manifold pressure adjustments and diagnostic testing. Designed for optimized gas air mixing, this replacement burner assembly ensures stable flame patterns and consistent thermal output in demanding hydronic