Professional-Grade Build: Features a high-integrity brass body and brazed connections for maximum 500 PSI operating pressure resistance

3-way ball valve is engineered for reliable performance in chilled or hot water applications

Durable Solenoid Interaction: Built to precise tolerances to ensure the reversing valve slide shifts reliably even after thousands of cycles

preserving the equipment’s BTU output and operational efficiency

To maintain system integrity and prevent solenoid coil burnout

Trane SWT3372 Pressure Switch 320788-703 Professional-Grade Build: Features a high-integrityThe Trane SWT3372 Pressure Switch is an essential safety component designed for precise refrigerant monitoring in Trane and American Standard HVAC systems. Functioning as a low pressure cutout switch, this part is engineered to open the electrical circuit when system pressure drops below its calibrated setpoint, protecting the compressor from damage due to loss of charge or restricted flow. Specifically identified by technical designations such as