Lead-Free Construction: The LF174A series utilizes lead-free copper silicon alloy to meet stringent potable water and heating system standards

this valve ensures continuous flow until the 120Vac Class F coil is energized

the 740 series is specifically designed for hot water heating boilers

Utilizing a Maxitrol R13110-1022 ensures precise control and stability

Built with durable sleeve bearings

Lochinvar & A.O. Smith 100109814 Pressure Switch 323080-701 Lead-Free Construction: The LF174A seriesThe Lochinvar & A. O. Smith 100109814 Pressure Switch is the direct performance validated replacement for the legacy 180997 1 component. This critical safety device is engineered for HVAC inducer motor blowers and water heater venting systems, featuring a precise 2. 5" W. C. (Water Column) trip point. Designed to monitor differential pressure, this OEM pressure switch ensures the combustion fan is moving sufficient air before enabling the ignition