Lennox 46K73 Limit Switch 318423-701 Reinforced diaphragm construction resists fatigue

Reinforced diaphragm construction resists fatigue and chemical degradation in harsh environments

including popular LCA and LGA series units

Versatile Media Compatibility: Suitable for a wide range of neutral liquids and gases used in industrial HVACR cycles

Verify the auxiliary switch wiring at terminals 2 and 3

critical for system head pressure regulation

Lennox 46K73 Limit Switch 318423-701 Reinforced diaphragm construction resists fatigueThe Lennox 46K73 Limit Switch is a critical safety component designed for precise thermal regulation within high performance HVAC systems. Engineered as a 200 230F Auto Limit Switch, this genuine OEM part monitors internal temperatures and interrupts the heating circuit if values exceed safe operating parameters, effectively preventing equipment damage. This specific model, also identified by part number 46K7301, features an auto reset function that