Trane SWT2973 Pressure Switch 318172-701 This 2-wire configuration significantly reduces

This 2-wire configuration significantly reduces cabling requirements and commissioning time compared to traditional 3-wire sensors

Quiet Operation: Balanced impeller wheel reduces vibration and resonance through the vent piping

this reversing valve pilot-operated design simplifies the transition between cycles while maintaining the thermal integrity of Trane condensing units

and Corsaire AC and Heat Pump units

Trane SWT2973 Pressure Switch 318172-701 This 2-wire configuration significantly reducesThe Trane SWT2973 Pressure Switch is an essential OEM safety component designed for precise draft monitoring in Trane and American Standard gas furnaces. Engineered for a 24V control circuit, this high performance sensor ensures the inducer motor establishes a proper vacuum before allowing the ignition sequence to proceed. It features a critical setpoint configuration, precisely calibrated to open at 1. 33" WC and close at 1. 52" WC, preventing unsafe