Trane SWT2973 Pressure Switch R-407C This HVAC wiring harness ensures

This HVAC wiring harness ensures a secure

it maintains consistent static pressure within the venting system by automatically adjusting for changes in stack temperature and atmospheric conditions

High-Efficiency 3-Phase Design: Offers superior torque and lower operating costs compared to single-phase alternatives

preventing heat exchanger damage and potential fire hazards

What causes the SWT3273 to trip frequently

Trane SWT2973 Pressure Switch R-407C This HVAC wiring harness ensuresThe 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