Description
The Trane SWT3876 Low Pressure Refrigerant Switch is a pressure-sensing control component designed to monitor refrigerant pressure levels within cooling circuits. It is calibrated to open at 35 PSI and close at 55 PSI, allowing it to respond to low-pressure conditions by interrupting or restoring the control circuit based on system status. In HVAC systems it is commonly used in air conditioning and refrigeration equipment to protect compressors from operating under insufficient refrigerant pressure. The switch used as a protective monitoring element that reacts to pressure variation, assisting in maintaining safe operating conditions within the refrigeration system.
