the gasket is designed for dry installation on clean

then adjust slightly further to ensure a stable signal that can account for minor voltage fluctuations

Hand-tighten first to check alignment before torquing to manufacturer specifications to prevent shaft slipping

the contacts return to their original state

Will this work as a universal replacement

Lochinvar & A.O. Smith 100208399 Pressure Switch Els PW 17895 the gasket is designed forProfessional grade Lochinvar & A. O. Smith 100208399 Pressure Switch is a critical safety component designed for high efficiency boilers and water heaters. As a low air pressure switch, it monitors the differential pressure within the combustion chamber to ensure the blower is moving sufficient air for safe ignition and sustained combustion. This OEM part is a direct replacement for PRS2434 and PRS2434K, as well as legacy part number 100166179.