Most residential tanks are tested to 300 PSI but rated for 150 PSI operation

Key Benefits OEM Compatibility: Ensures a direct fit for Carrier

Use a multimeter to check for 120VAC at the primary side and 24VAC at the secondary

Typical culprits include voltage surges

and 3/4" I

Trane SWT3623 Cut Out 322838-754 Most residential tanks are testedThe Trane SWT3623 Low Pressure Cut Out is a critical safety control designed specifically for high efficiency refrigeration and air conditioning circuits. This OEM Trane pressure switch functions as a fail safe, stopping the compressor when suction pressure drops below the 250 PSI open setpoint. By monitoring refrigerant levels, it prevents the compressor from operating in a vacuum or under lubricated conditions, which typically lead to motor burnout.