Xylem-McDonnell & Miller 157S-M Low Water Cut-Off W/Manual Reset & Snap-Action Switch 172812

The Xylem-McDonnell & Miller 157S-M 157 w/ManRest SNAP SW 172812 is a pressure switch for HVAC systems that has a manual reset button and a visual indicator. It monitors and controls liquid or gas pressure, and if the pressure exceeds a safe limit, the apparatus shuts down automatically. The manual reset button allows the operator to restart the equipment following a pressure surge, and the visual indicator displays the switch's current status. The Xylem-McDonnell & Miller 157S-M safety device prevents equipment damage and guarantees the HVAC system's safe operation by immediately stopping it in the event of an overpressure condition. It is commonly used in pumps, compressors, boilers, and other equipment that needs pressure monitoring and control.