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Nest Thermostat Connection with Nefit Stove: A Comprehensive Guide and Cable Setup

Krzysiekok22 5103 6
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 16178332
    Krzysiekok22
    Level 2  
    Hello, like in the subject. I bought a Nest thermostat, you can say that I have almost connected it, but it does not start with the stove (nefit) in the attachment there are a few pictures, maybe someone will help where I made the mistake by connecting the cables.
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  • #2 16178348
    daro31ie
    Automation specialist
    Give the diagram and describe your connections.
    The pictures show quite weak markings.
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  • #4 16180161
    Krzysiekok22
    Level 2  
    The heat link has been connected as in the diagram, the problem is the connection of the furnace with the heat link. Nest connects wirelessly to a heat link.
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  • #5 16180525
    daro31ie
    Automation specialist
    Krzysiekok22 wrote:
    The heat link has been connected as in the diagram, the problem is the connection of the furnace with the heat link. Nest connects wirelessly to a heat link.


    Dude, I don't understand something here.
    If there is wireless communication here, why do you have cables connected to the relay?
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  • #6 16181809
    Krzysiekok22
    Level 2  
    The wires for the relay are for powering it. It can be powered via USB or cable, and communication is done wirelessly.
  • #7 20492475
    marvellmat
    Level 1  
    Nefit uses EMS communication and Nest communicates via OpenTherm, you need to buy a small adapter between the stove and the heatlink, "EMS to OT".
    I reheated the cutlet, but maybe someone will find it useful ;)

Topic summary

The discussion revolves around connecting a Nest thermostat to a Nefit stove, with the user facing issues in establishing a proper connection. The user has nearly completed the setup but is unsure about the cable connections. Responses highlight the need for a clear diagram and emphasize that the Nest thermostat communicates wirelessly with a heat link, which in turn connects to the stove. A key point raised is that Nefit uses EMS communication, while Nest operates via OpenTherm, necessitating an EMS to OpenTherm adapter for successful integration. The conversation also clarifies that the relay requires power through cables or USB, despite the wireless communication.
Summary generated by the language model.
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