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Remeha - Wired connection - Energy (via SG Ready contacts)

What do you need?


In short

Extra information

General

Specific electrical wiring is required.



Your Niko Home Control installation meets the following requirements:

  • It has a connected controller II.

  • It is configured with the most recent programming software (version 2.17 or higher).

You need the following if you want to use the Niko Home Control energy-saving routines (e.g., solar or peak mode):

OR

in combination with potential-free contact modules (e.g. Finder 22.32.0.230.1xx0)

The connected double switch can be placed on a DIN rail using a modular holder (e.g. Legrand 412950)

Your Niko Home Control installation meets the following requirements:

  • It has a wireless smart hub.

  • It is configured with the most recent programming software (version 2.17 or higher).

You need the following if you want to use the Niko Home control energy-saving routines (e.g., solar or peak mode):

in combination with potential-free contact modules (e.g. Finder 22.32.0.230.1xx0)

The connected double switch can be placed on a DIN rail using a modular holder (e.g. Legrand 412950)

Logo Viessmann

Your partner system meets the following requirements:

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

The partner system has to be configured to allow correct SG-ready contact use.

Wiring diagrams for energy-saving routines (using SG Ready contacts)

The below table shows several options on how you can use Niko Home Control with your Remeha system and enable Niko routines (solar and peak mode).

When using Remeha  EHC-05 Neptuna PCB :

  • Connect the Smart Grid Ready 1 with connector X12 – BL1 IN contact (NO and C inputs) on the EHC-05 Neptuna PCB

  • Connect the Smart Grid Ready 2 with connector X12 – BL2 IN contact (NO and C inputs) on the EHC-05 Neptuna PCB

When using Remeha CU-HW-01 Azorra Ace PCB :

  • Connect the Smart Grid Ready 1 with  connector X12 D.I1 contact (NO and C inputs) on the CU-HW-01 Azorra Ace PCB

  • Connect the Smart Grid Ready 1 with connector X12 D.I2 contact (NO and C inputs) ) on the CU-HW-01 Azorra Ace PCB          

Niko Home Control set-up

Wiring diagram

a Niko Home Control bus system (connected controller) with a switching module

a Niko Home Control bus system (connected controller) with a connected double switch (wireless bridge needed)

a Niko Home Control wireless installation (wireless smart hub) with a connected double switch

Settings for energy-saving routines (using SG Ready contacts)

To view SG-ready programming examples, please see Niko Home Control programming examples.

It is advised to configure the parameters in peak mode and solar mode 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 max. 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

Niko Smart Grid 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)

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