For controlling heating and cooling applications in the room, such as radiators, underfloor heating
or a cooling ceiling. The device has 4 channels, each of which can be used to independently control a heating or cooling application. Each channel has an electronic valve output for controlling a thermoelectric actuator, as well as 3 inputs for recording and monitoring the room status (can be used for window contact, dew point sensor, level sensor or temperature sensor). It is also possible to connect an analog room control unit (SAR/A) to the device's inputs. To regulate the room temperature, the device has an integrated room temperature controller, which can be used directly to control the device's outputs. The ABB i-bus tool can be used for extended diagnostic functions and improved commissioning.