Lennox 46K69 Limit Switch if your collector box is

if your collector box is designed for a 4-cell configuration

the York S1-025-32625-000 is technically cross-referenced for use in various Coleman and Luxaire furnaces that specify the 271N hot surface igniter

When should this O-ring be replaced

typically rated for systems between 3 to 5 tons depending on the specific refrigerant and liquid temperature

3-pole footprints

Lennox 46K69 Limit Switch if your collector box isThe Lennox 46K69 Limit Switch is a critical safety component engineered for precision HVAC temperature regulation in residential and commercial heating systems. Operating within a strictly defined thermal profile, this auto reset limit switch is designed to open an electrical circuit when temperatures reach 180F and automatically reset at 150F. This specific Lennox replacement part is a direct OEM equivalent for multiple legacy and current part