Trane CNT0674 v 321894-706 Engineered for durability in demanding

Engineered for durability in demanding heating and refrigeration environments

and rotation direction match the OEM specifications

The adjustable superheat setting and bi-flow capability make it a versatile component for both cooling and heat pump applications

Always verify the part number in your service manual or contact our team for a compatibility check

providing a seamless field upgrade while maintaining the same 1035 Ohm platinum silicon temperature sensor output for precise thermal monitoring

Trane CNT0674 v 321894-706 Engineered for durability in demandingThe Trane CNT0674 is an industrial grade 170 210F AUTO Limit Switch designed for high performance temperature regulation in forced air systems. As a SPST N C (Single Pole Single Throw, Normally Closed) safety control, this component is critical for preventing heat exchanger overheating. The switch is calibrated to open at 210F, effectively interrupting the burner or heating circuit when thermal limits are exceeded, and automatically resets when