This identifies the specific negative pressure threshold required to close the internal switch contacts

this unit is a direct cross-reference for the Q313A1248

which are essential for restoring system SEER ratings

What are the physical dimensions of the bracket

This high-temperature rectangular gasket is engineered to withstand the rigorous thermal cycling and pressure fluctuations common in commercial and residential boiler operations

Lochinvar & A.O. Smith 100208398 Pressure Switch Els PW 17895 This identifies the specific negativeThe Lochinvar & A. O. Smith 100208398 Pressure Switch is a critical OEM safety component engineered for high efficiency boilers and commercial water heaters. Calibrated to a precise 7. 05" WC (Water Column) trip point, this switch ensures the combustion blower is generating the necessary static pressure to safely vent flue gases before the ignition sequence begins. It serves as a direct, drop in replacement for legacy part numbers PRS2432 and