Weil McLain 511-624-450 Switch Els PW 17895 00" WC to maintain strict

00" WC to maintain strict system safety tolerances and prevent nuisance trips or delayed ignition

What is the proper wiring for this 2-wire switch

which is ideal for optimizing efficiency in various occupancy patterns

and solid contaminants that can lead to premature compressor failure

Built for heavy-duty commercial and industrial environments

Weil McLain 511-624-450 Switch Els PW 17895 00" WC to maintain strictThe Weil McLain 511 624 450 is a high precision differential pressure switch engineered specifically for CGi model boilers (sizes 25, 3, and 4) and certain HE II boiler applications. This OEM replacement part is factory calibrated to a 1. 18" WC nominal set point, ensuring critical safety monitoring of the exhaust vent and combustion air system. With an operational differential range of 0. 5 to 2. 0" WC, it effectively prevents the boiler burner from