measure the resistance across the sensor leads with a multimeter and compare the ohms to the manufacturer's resistance-to-temperature chart

The assembly includes a fused AC terminal block and a 3-conductor power cord

Technicians must source the appropriate flange according to the specific line sizes of the system being serviced

As a veteran-grade SmartValve 24v Nat Fast Open 1/2" unit

The Eaton C25DND325A

Trane SWT4036 Door Switch 320074-702 measure the resistance across theThe Trane SWT4036 is a professional grade SPST 16A Door Switch engineered for high reliability circuit interruption in HVACR service panels, blower compartments, and electrical enclosures. This OEM Trane replacement part serves as a critical safety interlock, ensuring that power is cut to internal components when access panels are removed for maintenance or inspection. Rated for up to 16 amps at standard service voltages, the SWT4036 door switch