Trane SWT3971 Pressure Switch 340155-7026 Technical specifications confirm compatibility with

Technical specifications confirm compatibility with various sealed combustion systems across the Lochinvar and A

maintaining the high-performance standards of Trane HVAC equipment

it is professional practice to test the lamp and inspect the socket for signs of arcing before concluding the ballast is the sole point of failure

) contact configuration

This 120V silicon carbide furnace igniter is designed to replace aging or cracked ignition components in residential and light commercial Trane and American Standard units

Trane SWT3971 Pressure Switch 340155-7026 Technical specifications confirm compatibility withThe 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