the protective coating on the probe eventually degrades

How do I know if my switch needs replacement

ensuring the system meets specified BTU inputs while maintaining low NOx emissions

the rod must be positioned directly in the path of the burner flame

Trane SWT3207 Pressure Switch 322057-301 the protective coating on theThe Trane SWT3207 Pressure Switch is an essential safety component engineered for precise monitoring in residential and commercial HVAC systems. This genuine OEM part functions as a low pressure switch (CO 25#), specifically calibrated to break the circuit at 25 psi to prevent the compressor from operating under hazardous low refrigerant or low ambient conditions. Built to Trane OEM specifications, the SWT3207 ensures that your equipment remains