Trane SWT3971 Pressure Switch R-407C technicians should always inspect the

technicians should always inspect the collector box gasket and replace it if the seal is compromised to prevent flue gas leakage

helping to lower energy consumption

minimizing vibration stress on the piping

this 60-inch thermocouple is engineered to reduce millivolt line loss

Trane SWT3971 Pressure Switch R-407C technicians should always inspect theThe Trane SWT3971 Pressure Switch is an essential safety component engineered for induction monitoring in high efficiency Trane and American Standard furnaces. This SPST pressure switch (Single Pole Single Throw) is factory calibrated at a 1. 00" W. C. set point to ensure the inducer motor maintains the precise vacuum required for safe combustion and flue gas venting. As a 28VA pilot duty component, the SWT03971 effectively prevents the ignition cycle