Lennox 97J67 Limit Switch 321894-706 It features a robust construction

It features a robust construction capable of managing a wide firing range from 45K to 500K BTU

This mechanical defrost clock is built to withstand the rigorous demands of industrial environments

the 1/2-inch bore is sized specifically for a 1/2" shaft

Part number X834801 is the specific SKU used for individual retail units

Lennox 97J67 Limit Switch 321894-706 It features a robust constructionThe Lennox 97J67 limit switch is a critical safety component designed for precise thermal regulation within residential gas furnaces and air handlers. Featuring a 110 140F temperature range, this automatic reset limit switch monitors internal plenum temperatures to prevent heat exchanger damage or unsafe operating conditions. When the high limit threshold of 140F is reached, the switch opens the electrical circuit to shut down burners, automatically