Lennox 97J67 Limit Switch 321702-401 ensuring a drop-in replacement without

ensuring a drop-in replacement without field modifications

Key Benefits for the Contractor: Direct Replacement Logic: Field-ready substitute for P70CA-65 and P70CA-93 models

Service Reliability: Ensures consistent boiler burner performance under high-demand operating conditions

OEM Precision: Ensures exact fit and retention standards for factory-specified thermistor assemblies

Lennox 97J67 Limit Switch 321702-401 ensuring a drop-in replacement withoutThe 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