Featuring a fixed temperature range of 110-140°F

recent technical specifications confirm that this component is A2L compliant

This auto limit switch functions as a primary safety control

which is critical for maintaining long-term system stability

Lennox 49L87 Limit Switch Featuring a fixed temperature rangeThe Lennox 49L87 Limit Switch is a critical safety component designed for precise thermal regulation in residential gas furnaces and commercial heating systems. As a genuine OEM replacement part, this normally closed (NCO) limit control is engineered to open the electrical circuit upon reaching its fixed 230F cut out temperature, effectively preventing heat exchanger damage and hazardous conditions. Once the system cools to the 200F cut in