Siemens Building Technology S55180-A157 Control 318518-761 but the technical specifications and

but the technical specifications and bolt patterns remain the same for all compatible HVAC blower applications

and radiant panel applications

This technical-spec valve is the industry standard for ensuring HVAC control valve efficiency and system balancing

Reliable Switching: Designed with high-amperage contacts to manage compressor on/off function without early contact pitting

While the frame size matches

Siemens Building Technology S55180-A157 Control 318518-761 but the technical specifications andThe Siemens Building Technology S55180 A157 is a heavy duty SSE Series electronic actuator engineered for precise 0 10V modulation in commercial HVAC systems. This 24VAC non spring return (NSR) unit is designed for normally closed (NC) operation, making it a reliable solution for modulating airflow or hydronic flow when paired with compatible 599 Series zone valves. With a 1 10 inch (2. 5 mm) stroke and a fast 12. 5 second positioning time, it