This ambient air temperature sensor utilizes a high-precision NTC thermistor to provide real-time atmospheric data to the primary control board

As a critical component in the diagnostic and protection circuit

this OEM assembly simplifies repairs by combining the starting relay and motor protector into a single 103N-style housing

this auto-reset limit switch features a specialized 100-160°F temperature range

this pilot device is engineered for switching multiple loads or isolating disparate control voltages

Trane SWT2515 Pressure Switch Els PW 17895 This ambient air temperature sensorThe Trane SWT2515 is a high precision HVAC pressure switch calibrated to a 1. 36" WC setpoint for critical safety monitoring in gas furnaces and air handlers. This SPST (Single Pole Single Throw) air pressure sensor acts as a primary safety interlock, ensuring the draft inducer motor generates sufficient negative pressure before the ignition sequence begins. Designed for maximum reliability in high cycle environments, the SWT2515 provides a 1 4" barb