BM 21903-08 Alpha Direct Balance Switch Modbus 230V Station - 8 zones

This station manages up to 8 zones via Modbus-RTU interface and integrates with building management systems. It supports standard heating controllers and offers automatic hydraulic balancing.

• The station can map cooling by inverting input signals from heating controllers.
• It allows setting cooling blocking for each valve output/actuator.
• Special functions include factory reset, manual opening, and first opening.
• It has an app function with NFC support.
• Automatic detection of connected controllers is possible.
• Up to 12 valve actuators can be connected.
• Suitable for NC drives, with configurable pump and boiler control.
• Integrated automatic hydraulic balancing with TÜV certification.