Using genuine York parts like the S1-025-38936-000 ensures that your HVAC wiring meets factory specifications for gauge and insulation

Technicians should inspect the diaphragm during routine maintenance or if the valve exhibits "hunting" or delayed shut-off

provided the system pressures align with the valve's technical specifications

Includes the specific conversion spring needed for calibrated gas valve adjustments

Siemens Building Technology SSD61.5U Actuator 319852-301 Using genuine York parts likeThe Siemens SSD61. 5U is a high performance 0 10Vdc electronic valve actuator engineered for precise proportional control in HVAC applications. Designed for seamless integration with 1 2 inch to 1 1 4 inch Pressure Independent Control Valves (PICV), this unit delivers a nominal force of >56 lbs (250N) to ensure reliable operation in chilled and hot water systems. A critical feature of the SSD61. 5U is its spring return fail safe mechanism, which