Control accessories

The extension module is used for the extension of heating and HWT circuits. A maximum of two mixer-controlled heat circuits and one HWT circuit with a DHW circulation pump can be connected. Additionally an external heat circuit or an
accumulator and other HKM’s can be connected.

Like HKM. In addition, all heat circuits can be controlled by means of a touch display. In addition, an external heat circuit or a central and a second accumulator tank and another HKM can be connected.

Controller based on the outdoor temp. and atmospheric conditions for up to two mixer-controlled heat circuits and one HWT circuit with a DHW circulation pump, a decentralised accumulator tank or an external heat boiler, a district line pump or an accumulator loading pump and an external heat circuit (max. of 16
HKRs).

These HC additional boards are used to add a heat circuit and a hot water tank to a heating system. It is now possible to install an additional board A in a boiler and an additional board B in an extension module, two additional boards in a boiler or an additional board in each of two different extension modules. This is also possible with the heat circuit controller. Sensors must be ordered separately.

Mixed district line, actuation of the district line pump and the district line mixer, including district line sensors.

For 2 additional sensor inputs. All together you can connect 5 sensors on the buffer now. Sensors must be ordered separately.

for differential control of a separate heat source and one accumulator or hot water tank. This differential control can be used for an external boiler (wood, oil, gas, heat recovery etc.). The actuation of the pumps is constant (Incl. 2 immersion sensors).

Additional board S (X10-104) acts as a differential controller for a solar system in single-circuit or double-circuit operation. The actuation of the pumps is either constant or speed-controlled with a PWM signal.