Raspberry Pi with Opentherm Gateway?

This Forum is about the Opentherm gateway (OTG) from Schelte

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Raspberry Pi with Opentherm Gateway?

Postby kaspberry » Sun Oct 11, 2015 7:18 pm

Hello,

For the home automatization i want to control the heating system with a Raspberry Pi. I can control it by using a relay but i want to use to opentherm technology for using the heating with modulation.

Is the opentherm Gateway a product i can use? Can i connect it to a raspberry pi and send and receive data to the heating system?
The heating system i have is a Nefit ProLine HRC 30 HR CW5

I am a programmer but i haven't done anything with opentherm yet.

Thanks for your help!
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Re: Raspberry Pi with Opentherm Gateway?

Postby hvxl » Tue Oct 13, 2015 4:43 pm

From the manual I get the impression that the Nefit ProLine HRC 30 HR CW5 doesn't support Opentherm. So then the OTGW will not be able to work with it.
Schelte
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Re: Raspberry Pi with Opentherm Gateway?

Postby marcelr » Tue Oct 13, 2015 8:50 pm

You will need an EMS-OT converter to talk to that boiler through OTGW. Available from EUR 50.-- upwards.

grtz,

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Re: Raspberry Pi with Opentherm Gateway?

Postby kaspberry » Wed Oct 14, 2015 9:09 am

Thank you,

If i buy the EMS-OT converter, can i modulate the boiler like this connection:

Raspberry PI -> OpenTherm Gateway -> EMS-OT -> Nefit Proline HRC 30 HR CW5

So i can make a software programm that sets the temp and the boiler modulates?
Thanks again for your help!
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Re: Raspberry Pi with Opentherm Gateway?

Postby kaspberry » Wed Nov 04, 2015 8:59 pm

No one knows if this works?

And do i need to add a thermostat or can i use the raspberry pi to set and receive the temperatures?

Thank you very much!
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