Lennox 10U40 Pressure Switch 323055-751 this specific OPD-equipped model must

this specific OPD-equipped model must be installed in a horizontal upright position to ensure the internal lever mechanism and overpressure device function correctly

ensuring minimal downtime during field service

casing O-ring

this kit focuses on the power supply module

Lennox 10U40 Pressure Switch 323055-751 this specific OPD-equipped model mustThe Lennox 10U40 Pressure Switch is a critical safety component designed for high pressure monitoring in HVAC systems. Identified by part number 675 490#, this high pressure switch serves as a reliable cutoff mechanism to protect the compressor and system components from excessive pressure build up. Engineered for precision, it functions as a normally closed pressure switch that opens the electrical circuit when internal system pressure exceeds the