24V signal present at the terminals without the internal solenoid clicking

though you should verify the label on the existing unit)

or blocked return air registers before replacing the sensor

making it suitable for both standard residential furnaces and commercial heating units requiring high-voltage HVAC limit controls

ensuring optimal heat transfer in commercial HVAC systems

York 371-04479-002 Assembly Kit 318172-701 24V signal present at theThe York 371 04479 002 Assembly Kit is an essential component for maintaining the efficiency of Variable Speed Drive (VSD) systems in industrial chillers. Designed specifically as an IGBT VSD Power Assy Kit, this assembly manages high speed electrical switching to regulate motor frequency and voltage. For technicians servicing York compressor chiller parts, this kit ensures the Insulated Gate Bipolar Transistor (IGBT) functions within precise thermal