Trane SWT3544 Pressure Switch 326070-701 While the brass body is

While the brass body is highly resilient

Always check for 120V at the control board terminals before condemning the part

The 13-511-B15 is rated for saturated steam service up to 250°F (121°C)

the S1-022-11567-000 is specifically calibrated and sized for the liquid side of the HVAC system

Trane SWT3544 Pressure Switch 326070-701 While the brass body isFor mid to large scale refrigeration and HVACR systems, the Trane SWT3544 Pressure Switch is a critical safety component designed to mitigate risk from excessive head pressure. As a High Pressure Switch, this OEM replacement parts (often superceded by part number SWT03544) is factory set to trip at 650 PSI, effectively cutting the control circuit to protect the compressor from mechanical failure or system rupture. With a SPST (Single Pole Single