Hi,
I have build a system to control my heating. All rooms are controlled individual on time and temperature. The boiler ( Nefit ) I control via on/off control based on the boiler temperature. The boiler temperature is calculated based on the outside temperature. The system works very well. However, since my Nefit can also be modulated I am looking to control it via OpenTherm ( with Nefit convertor ).
Is there anyone who has experience with this setup ?
Looking forward for responses.
Best Regards,
Arno
Who has experience with Control Nefit via Opentherm
Moderator: hvxl
Re: Who has experience with Control Nefit via Opentherm
I have a Nefit proline heater and I am using the Honywell Round for modulation and also had to buy the Nefit OpenTherm converter.
It works very well with the gateway!
It works very well with the gateway!
Re: Who has experience with Control Nefit via Opentherm
Hi Cyberde,
Thanks a lot for your answer. Would it be possible to send a wiring diagram how your have connected everything ?
Br,
Arno
Thanks a lot for your answer. Would it be possible to send a wiring diagram how your have connected everything ?
Br,
Arno
Re: Who has experience with Control Nefit via Opentherm
Pretty simple.
Thermostat --- OpenTherm Gateway -- Converter -- Nefit
The converter can only be connected one way to the Nefit, other than that it doesn't matter how you connect the wires. Generally it's a good idea to connect for example Red to Red, but again, it doesn't matter.
Thermostat --- OpenTherm Gateway -- Converter -- Nefit
The converter can only be connected one way to the Nefit, other than that it doesn't matter how you connect the wires. Generally it's a good idea to connect for example Red to Red, but again, it doesn't matter.
Re: Who has experience with Control Nefit via Opentherm
first check with nefit
the converter doesn't work with every nefit
the converter doesn't work with every nefit
Re: Who has experience with Control Nefit via Opentherm
Hi,
How can you control the CV boiler temperature directly from the OpenTherm interface ?
Br,
Arno
How can you control the CV boiler temperature directly from the OpenTherm interface ?
Br,
Arno