ABB KNX 2CDG110220R0011 Control unit HCC/S2.2.1.1

For controlling a heating or cooling circuit. The device has 2 channels, each with two electronic outputs for controlling the 3-way mixer valve (3-point) of a heating or cooling circuit. The device also has a relay output (5 A) for switching the circulating pump. 3 binary signal inputs can be used to monitor the status of the pump (via potential-free contacts) and to include this feedback in the pump control. The flow and return temperatures are measured and used for the calculation of the valve set value by the integrated controller. The setpoint is received via the KNX bus. Channel bundling makes it possible to control systems with double pumps. The ABB i-bus tool can be used for extended diagnostic functions as well as improved commissioning.

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