Lennox 36K29 Limit Switch 320788-703 A2L refrigerant compliance ensures this

A2L refrigerant compliance ensures this relay meets modern safety standards for newer cooling systems

frost on the indoor coil

Safety Monitoring: Engineered to interface with safety sensors and switches

and wall-mounted controllers

you must verify that the 100 Psi maximum range and overpressure ratings meet the specific requirements of your R-410A high-side system

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