Askoma

What can you do with Askoma and Niko Home Control?

If you connect your water boiler immersion resistor to Niko Home Control, you can use the solar mode to optimise the energy consumption required for heating your home. When excess solar power is available, Niko Home Control will activate the water boiler immersion resistor in your boiler.

We recommend the following options to make even better use of this connection:

Get a complete overview of the energy flows in your home, including your self-consumption; see https://guide.niko.eu/en/umnhc2/lv/energy-insights .

What do you need?

Niko requirements

Your Niko Home Control installation meets the following requirements:

It has a connected controller II.
It is configured with the most recent programming software.

Additionally, you need to install the analogue control module 0–10 V (550-00240).

Askoma requirements

Your system meets the following requirements:

Your water boiler immersion resistor needs to be inserted into the boiler unit to heat up the water.
It has an additional high power dimmer module (e.g. Carlo Gavazzi RGC1P23V12EA for 1-phase circuits) to control the power of the water boiler immersion resistor. Make sure that it is a phase-switching dimmer, not a Pulse Width Modulation (PWM) switching dimmer.

Your system is one of the following Askoma products*:

AHIR-BI-OP-1.0
AHIR-BI-OP-2.0
AHIR-BI-OP-2.5
AHIR-BI-OP-3.0

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

Wiring diagrams

Use the following contacts on the high power dimmer:

	Carlo Gavazzi high power dimmer
230 V (L)	L1
Variable load	T2
Analogue out (on analogue control module)	A1 (0–10 V)
Common (on analogue control module)	GND

Use the following contacts on the Askoma water boiler immersion resistor:

	Askoma system
Variable load	230 V L
230 V (N)	N

Programming

Configure via the Niko Home Control programming software:

In the solar mode, define virtual devices that correspond to specific levels of available excess solar energy.
Then, create conditions to link the state of these virtual devices to output levels of the 0–10 V output.
Add the analogue control module and assign the 0–10 V output.

Take into account the minimum and maximum power of your water boiler immersion resistor.

The table below shows an example, where the resistor’s minimum power is 500 Watt and the maximum power is 2000 Watt:

Excessive power in solar mode	Virtual device	Output level of 0–10 V output
500 Watt	1	25 %
500 Watt	2	50 %
500 Watt	3	75 %
500 Watt	4	100 %