Siemens Building Technology 540-680FA Sensor 326058-757 For technicians and installers

For technicians and installers

While the mechanical operation is similar

Key Benefits: Precise Flow Control: Ensures accurate refrigerant management to maintain stable evaporator pressures

always verify the part number against your specific model and serial number before installation

facilitating the accurate translation of digital pulse signals into a stable analog control signal

Siemens Building Technology 540-680FA Sensor 326058-757 For technicians and installersThe Siemens Building Technology 540 680FA is a Series 1000 wall mounted room temperature sensor designed for seamless integration with Terminal Equipment Controllers (TEC) and LONMARK compliant systems. This desert beige unit features a high precision 10K Ohm Type II NTC thermistor, ensuring accurate thermal feedback within a standard operating range of 55F to 95F. Engineered for professional grade HVAC automation, the 540 680FA includes a secondary