Description
The York S1-02322459000 Base Valve is a liquid-line service valve used in refrigeration and air conditioning systems to control refrigerant flow and provide a access point within the piping circuit. In HVAC systems, it is typically installed on the liquid line near the condenser or outdoor unit, where it allows isolation of the refrigerant circuit during maintenance, charging, or system diagnostics. The valve provides a sealing path for refrigerant while supporting controlled opening and closing of flow through the 3/8-inch connection point. It is positioned as part of the base service assembly in residential and light commercial equipment.









