this plunger assembly is built to withstand the rigorous duty cycles of industrial HVACR systems where precise linear modulation is required

1" diameter crankcase

Measuring 5/16" diameter by 36" length

This kit is specifically for the 240RA8 series

Featuring 18-inch leadwires and a manual lever for manual valve positioning during system commissioning or power failures

Lochinvar & A.O. Smith 100135290 Burner Assembly 30067439-890 this plunger assembly is builtThe 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