Siemens Building Technology 540-670B Sensor 323613-751 which is sold separately to

which is sold separately to match your specific shaft diameter

Automatic Reset: Eliminates the need for manual intervention once temperatures return to the 135°F safety range

The Lennox Y8736 TXV Kit is a field-installed 3-ton thermal expansion valve specifically engineered for high-efficiency R410A air conditioning and heat pump systems

Robust Construction: UL-approved steel shell with copper-plated steel or solid copper ODF connections for high-pressure durability

Siemens Building Technology 540-670B Sensor 323613-751 which is sold separately toThe Siemens 540 670B is a TEC Room Sensor designed for integration with Siemens Building Technologies terminal equipment controllers. This unit provides precision room temperature sensing and features a local setpoint adjustment slider and a manual override button for temporary occupancy requests. Built for durability in commercial environments, the 540 670B utilizes a 10K Ohm Type II thermistor to ensure accurate HVAC automation feedback and stable