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VC/S 4.2.1 Valve Drive Controller Technical Data

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This document provides technical data and device functions for the ABB i-bus® KNX VC/S 4.2.1 valve drive controller, a modular installation device for controlling floor heating, radiators, and cooling ceilings. It describes the device's KNX-certified bus-powered operation, independent four-channel functionality (controller or actuator channel), and configuration via Engineering Tool Software (ETS).

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