preserving the equipment’s BTU output and operational efficiency

To maintain system integrity and prevent solenoid coil burnout

providing the reliable ignition control necessary for uninterrupted domestic hot water delivery and space heating performance in demanding environments

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

and a mechanical position indicator to streamline field verification for contractors

Trane SWT3372 Pressure Switch 320788-703 preserving the equipment’s BTU outputThe 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