Common Technical Questions

Designed for high-duty cycle applications

The rugged construction makes it a staple for contractors maintaining Johnson Controls and York equipment

This HVAC safety switch opens the circuit to prevent the furnace from operating in an unsafe thermal state

this component ensures a seamless transition that meets strict manufacturer specifications for Rheem and Ruud heating equipment

Nordyne 626481R Limit Switch Common Technical QuestionsThe Nordyne 626481R Limit Switch is a critical OEM safety component designed for high performance temperature regulation in residential and light commercial HVAC systems. This L135 40 limit switch is engineered to open the electrical circuit at a fixed cutout temperature of 135F, effectively interrupting the burner or blower circuit to prevent thermal override and equipment damage. As an auto reset limit switch, it automatically re closes the circuit