Siemens Building Technology SSD61.5U Actuator 326058-756 making it the standard choice

making it the standard choice for softening systems or environments with moderate water conductivity

Simplified Calibration: Factory-calibrated resistance values ensure immediate compatibility with Alco controllers without extensive field adjustment

preventing bypass and ensuring all refrigerant passes through the filtration media

provided the shaft diameter is compatible

Durable Construction: Epoxy-encapsulated design resists moisture ingress and heavy vibration

Siemens Building Technology SSD61.5U Actuator 326058-756 making it the standard choiceThe 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