On-Board Diagnostics: The integrated test button and signal light allow for rapid verification of the boiler low water cut-off status

acts as a filter that opposes sudden changes in electrical current

Always verify the part number in the specific Weil McLain boiler manual for your model's series before installation

the VAL2375 offers reliable sensing through its thermal bulb

With a nominal capacity of 1/2 ton

Reznor 197117 Kit R-410A On-Board Diagnostics: The integrated testThe Reznor 197117 Kit is an essential DJ20 high altitude kit engineered for Reznor unit heater models UDAP, UDAS, UDBP, and UDBS (sizes 30 125). High elevation installations over 6,000 feet require a precise adjustment to the air fuel mixture to compensate for decreased atmospheric density and prevent incomplete combustion or safety circuit tripping. This OEM replacement part includes a specialized pressure switch, often identified by a purple label,