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

Stable 10kV Output: Delivers a consistent high-voltage arc at 23mA for reliable fuel vaporization and clinical ignition cycles

which are essential for restoring system SEER ratings

this unit is a direct cross-reference for the Q313A1248

it is designed to withstand the thermal cycling and high-stress environments typical of Lochinvar Knight boilers and A

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