Lennox 74W75 Limit Switch 319848-301 high-torque operation (71 in-oz) while

high-torque operation (71 in-oz) while minimizing mechanical noise during transitions

This valve is engineered to withstand high-pressure environments typically found in R-410A refrigerant systems

Universal Shaft Compatibility: Native support for 1/2-inch round shafts with easy adaptation for 3/8-inch round or square shafts using standard KMC hardware

this valve body is designed to handle both chilled water and hot water within standard HVAC operating temperatures

Lennox 74W75 Limit Switch 319848-301 high-torque operation (71 in-oz) whileThe Lennox 74W75 Limit Switch is a genuine OEM safety component specifically calibrated to open the circuit at 225F, providing essential high limit protection for your heating system. As a Lennox furnace limit switch replacement, this fixed temperature control prevents the heat exchanger from reaching critical temperatures that could lead to structural fatigue or safety hazards. For technicians, installing a genuine Lennox 74W75 ensures the system