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:
Required additional products | Reference numbers | |
---|---|---|
Connected controller | Switching module with two outputs | |
Connected controller with a wireless bridge | Connected double switch The connected double switch can be placed on a DIN rail using a modular holder (e.g. Legrand 412950) | |
Wireless smart hub | Connected double switch The connected double switch can be placed on a DIN rail using a modular holder (e.g. Legrand 412950) |
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*:
Potential-free contacts | 230 V contacts | |
---|---|---|
Heat pumps |
| - |
Heat pump boilers |
| - |
*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) |
Smart Grid 1 | Smart Grid 2 | |
---|---|---|
Option 1 for CTC heat pump | A14 and A25 (relay K22) | A24 and A25 (relay K23) |
Option 2 for CTC heat pump | G33 and G34 (relay K24) | G73 and G74 (relay K25) |
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) |
Smart Grid 2 | |
---|---|
CTC heat pump boiler | CN6/5-6 |
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
Niko routine | Smart Grid Ready status | Smart Grid Ready output contact | Setting |
---|---|---|---|
Solar mode | Forced on | Smart Grid Ready 1 | On (closed) |
Smart Grid Ready 2 | On (closed) | ||
Enhanced comfort | Smart Grid Ready 1 | Off (open) | |
Smart Grid Ready 2 | On (closed) | ||
Peak mode | Forced off | Smart Grid Ready 1 | On (closed) |
Smart Grid Ready 2 | Off (open) | ||
Normal mode | Normal operation | Smart Grid Ready 1 | Off (open) |
Smart Grid Ready 2 | Off (open) |