this OEM component maintains optimal evaporator superheat by modulating flow based on load conditions

Durable Round Housing: Metal-cased design facilitates optimal heat dissipation and protection against harmonic vibration

For standard HVAC maintenance

For larger commercial boilers exceeding this heat input

York S1-3591-00 Valve 320788-704 this OEM component maintains optimalThe York S1 3591 00 Valve is a normally closed (N C) solenoid valve body engineered for high performance fluid control in industrial and commercial HVACR systems. Specifically designed with 7 8" sweat (ODF) connections, this valve ensures leak resistant, soldered joints within refrigerant lines, water circuits, or coolant systems. As a critical component for York chiller maintenance and fluid handling, the S1 3591 00 features a manual lift stem,