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A2L refrigerant compliance ensures this relay meets modern safety standards for newer cooling systems
provided the model number matches your specific unit's parts list
reducing premature field failures
Smith boiler parts inventories
Lennox 36K29 Limit Switch 320788-703 A2L refrigerant compliance ensures thisThe Lennox 36K29 Limit Switch is a critical safety component designed for precise thermal monitoring in residential and light commercial gas furnaces. This furnace high limit switch features an auto reset function, calibrated to trip when plenum temperatures reach the 210 240F range. When an overheat condition is detected, the switch opens the electrical circuit to the gas valve, immediately terminating the heating cycle to protect the heat exchanger