CTC: Energy optimisation via wired connection (SG Ready contacts)

What do you need?

Niko requirements

Your Niko Home Control installation meets the following requirements:

• It has a wireless smart hub or a connected controller II.

• It is configured with the most recent programming software.

Depending on the basic modules of your Niko Home Control installation, you need to install the following additional products:

CTC requirements

Your system meets the following requirements:

• It is a heat pump or heat pump boiler with Smart Grid Ready contacts.

• It is configured to allow correct Smart Grid Ready contact use.

• Your system contains one of the following CTC logic boards*:

  • EcoLogic M

  • EcoLogic L

  • EcoZenith i360

  • EcoZenith i555 Pro

Your system is one of the following CTC products*:

*Consult the website of the supplier for detailed specifications and the latest products.

Wiring diagrams

Connecting heat pumps

Via potential-free contacts:

Switching module	Connected double switch
	*230V to potential-free contact module (e.g. Finder 22.32.0.230.1xx0)

Connecting heat pump boilers

Heat pump boilers usually have only one photovoltaic contact. You only have to connect the Smart Grid Ready 2.

Via potential-free contacts:

Switching module	Connected double switch
	*230V to potential-free contact module (e.g. Finder 22.32.0.230.1xx0)

Programming energy-saving routines for heat pumps

Configure the energy-saving routines for the heat pump via the Niko Home Control programming software. For more information, see https://guide.niko.eu/en/smnhc2/lv/solar-mode and https://guide.niko.eu/en/smnhc2/lv/peak-mode.

You can use the following programming example as inspiration or as a starting point: https://guide.niko.eu/en/penhc2/lv/making-a-bosch-heat-pump-respond-to-excess-electri

It is advised to configure the parameters as follows:

Solar mode

• Level of excess solar energy that activates the device (one of the following options):

  • 50 % of the power of the heat pump compressor

  • 25 % of the thermal capacity of the heat pump (often the name of the heat pump contains a reference to this thermal capacity)

• Minimum activation duration: 1 hour

Optionally: Define the latest start time and duration to ensure that the device is activated before the peak hours.

Peak mode

• Maximum power consumption (one of the following options):

  • 100 % of the heat pump compressor power

  • 50 % of the thermal capacity of the heat pump (often the name of the heat pump contains a reference to this thermal capacity)

• Peak target value: the maximum power level that should trigger the devices to turn off

• Peak mode type:

  • Predictive (capacity tariff in Flanders)

  • Direct