Description
The Trane SWT03629 High Pressure Switch is a refrigerant pressure control component used to protect compressors and related elements from excessive operating pressure conditions. In HVAC systems, it is installed within air conditioning and heat pump units where it continuously monitors discharge pressure during cooling operation. It features an open setting at 400 PSI and a close setting at 250 PSI, meaning it interrupts the control circuit when pressure rises automatically restores operation once pressure decreases. It helps maintain safe refrigerant pressure levels, supports compressor protection in residential and commercial equipment.
