Siemens ASV181.1E VAV Actuator Damper Module Unit

Siemens ASV181.1E/3 is a VAV modular controller engineered for plants with variable or constant air-volume flow, integrating a highly precise differential-pressure sensor and a digitally configurable air-volume controller. It is designed to connect to OpenAir family 3-position damper actuators with high-torque or safety features, enabling accurate, coordinated damper positioning in zoned HVAC systems. The unit ships prewired with a 0.9 m damper-actuator cable and a 0.3 m connecting cable and operates on 24 V AC power, with an application range up to 300 Pa for the differential pressure sensor. This compact, integrated solution is ideal for centralized control of VAV terminals in commercial buildings where reliable airflow modulation and energy-efficient operation are essential.