Lennox 88M98 Pressure Switch 340155-7024 The bypass feature effectively manages

The bypass feature effectively manages thermal expansion pressure

while the heavy-duty molded connector creates a moisture-resistant

and ER402 models

Key Benefits for Contractors: Direct Replacement: Engineered as the exact substitute for DFS-221-271

Balanced Port Construction: Compensates for changes in head pressure

Lennox 88M98 Pressure Switch 340155-7024 The bypass feature effectively managesAs a seasoned technician, you know that a failing low pressure switch can lead to catastrophic compressor burnout or system freezing. The Lennox 88M98 Pressure Switch (also identified by factory part 100087 03) is a critical safety control designed for precise refrigerant pressure monitoring in residential and commercial units. This OEM Lennox replacement part features a factory calibrated set point that actuates at 90 PSI and provides an auto reset