Jump to content

Welcome to Smart Home Forum by FIBARO

Dear Guest,

 

as you can notice parts of Smart Home Forum by FIBARO is not available for you. You have to register in order to view all content and post in our community. Don't worry! Registration is a simple free process that requires minimal information for you to sign up. Become a part of of Smart Home Forum by FIBARO by creating an account.

 

As a member you can:

  •     Start new topics and reply to others
  •     Follow topics and users to get email updates
  •     Get your own profile page and make new friends
  •     Send personal messages
  •     ... and learn a lot about our system!

 

Regards,

Smart Home Forum by FIBARO Team


kickonhigh

Replacing the thermostat with a relay switch

Recommended Posts

hello,

could someone help or give some hints how to connect relay switch instead main room thermostat which was connected by this four cables as on screen below , I want to be able to send to CO boiler signal to start heat or stop heat , is this possible  ? of course there are TRV on radiators to control flow .

btw. what kind of signal is send to boiler ? or is it just a open/close circuit ? 

Please login or register to see this attachment.

Share this post


Link to post
Share on other sites

The topic has been moved from "

Please login or register to see this link.

" to "

Please login or register to see this link.

".

 

Temat został przeniesiony z "

Please login or register to see this link.

" do "

Please login or register to see this link.

".

Share this post


Link to post
Share on other sites

It's possible, it's seems to be a open/close circuit. But is the connection of the room thermostat 230v or 24v? Do you have the manual? And with brand of heating do you have?

Share this post


Link to post
Share on other sites
  • Topic Author
  • thank you for support, 

    could you please look at the picture and see if is it correct connection ? does it matter if I connect red cables to IN or Q1

    Please login or register to see this attachment.

    Share this post


    Link to post
    Share on other sites

    if I am not mistaken, you can connect the wires as I have drawn. then you can even use your old thermostat. If you thermostat really switch 230v.

    Please login or register to see this attachment.

     

    Otherwise you are correct in you picture, that's the way you can connect the wires. it does not matter where you are connecting the red cables to IN or Q1.

    Edited by Reinhold

    Share this post


    Link to post
    Share on other sites
  • Topic Author
  • many thanks for clarification ,

    I don't want override scenes, which rely on temp. sensors,  by this thermostat so i will choose second option 

    Edited by kickonhigh

    Share this post


    Link to post
    Share on other sites
    On 11/29/2017 at 7:56 PM, Reinhold said:

    if I am not mistaken, you can connect the wires as I have drawn. then you can even use your old thermostat. If you thermostat really switch 230v.

    Please login or register to see this attachment.

     

    Otherwise you are correct in you picture, that's the way you can connect the wires. it does not matter where you are connecting the red cables to IN or Q1.

    I would not advice to put 230V on thermostat wires... The blue and red from the boiler should be indeed connected to the IN and Q1. The switching should be done by the controller, not manually. 

    Edited by Comfortica

    Share this post


    Link to post
    Share on other sites
    2 hours ago, Comfortica said:

    I would not advice to put 230V on thermostat wires... The blue and red from the boiler should be indeed connected to the IN and Q1. The switching should be done by the controller, not manually. 

    for this, you need the first serie switches (not the 2 version)

    Share this post


    Link to post
    Share on other sites
    14 minutes ago, akatar said:

    for this, you need the first serie switches (not the 2 version)

    Yes, I know that :)There is a relay switch and a regular switch. But, actual switching in both cases is 230V. So yes, you can run the red and blue wire to IN and Q1 of the relais module to control the boiler. But, you should not run L and S1 to the old thermostat. 

    Share this post


    Link to post
    Share on other sites

    .Thanks for the quick reply!

    Picture of the situation attached.

     

    Just to recap.

    - Should not be using the Relay Switch 2x1,5kW for this;

    - Thermostat wires go in IN and Q1;

     

    Question remains.

    - Where do I connect the 230V, which ports?

    - what version Fibaro swich should I buy?

     

    Thx for the help!

    Bart

     

    Please login or register to see this attachment.

    Share this post


    Link to post
    Share on other sites

    @Klompie The wires on the thermostat are not the same as the ones on the pcb (in the picture you posted) where are the wires from the thermostat go to??

    Share this post


    Link to post
    Share on other sites
    6 hours ago, Klompie said:

    .Thanks for the quick reply!

    Picture of the situation attached.

     

    Just to recap.

    - Should not be using the Relay Switch 2x1,5kW for this;

    - Thermostat wires go in IN and Q1;

     

    Question remains.

    - Where do I connect the 230V, which ports?

    - what version Fibaro swich should I buy?

     

    Thx for the help!

    Bart

     

    Please login or register to see this attachment.

    You can use the relais module. Just do not connect you thermostat to it ;)

     

    The module itself needs 230V power. So, connect a Live and Neutral (brown and blue) to the L and N of the module. Then, connect the blue and red wires that run to your boiler, to the IN and Q1 of the module. (does not matter which color to IN and Q1). 

     

    After that, you can replace your thermostat with a zwave enabled thermostat. 

    Edited by Comfortica

    Share this post


    Link to post
    Share on other sites

    Place the Fibaro switch near the boiler and switch a hard relais that in turn switches the 0.8qmm blue and red wires.

    But make sure you connect to boiler/ kettle/ heater as on/ off and not opentherm. Please read manual for your heater to check.

     

    Jim

    Share this post


    Link to post
    Share on other sites
    14 hours ago, Comfortica said:

    You can use the relais module. Just do not connect you thermostat to it ;)

     

    The module itself needs 230V power. So, connect a Live and Neutral (brown and blue) to the L and N of the module. Then, connect the blue and red wires that run to your boiler, to the IN and Q1 of the module. (does not matter which color to IN and Q1). 

     

    After that, you can replace your thermostat with a zwave enabled thermostat. 

    Thx for the clear instructions. Have 10x Fibaro heat controller which should be acting as individual thermostats. Need to create scenes where my heat-controller is asking for warm water and tells the switch to connect (so the central heating unit starts working).

    Won't be using a central zwave enabled thermostat. 

     

    Can anyone help on the scene? As mentioned, 10x heatcontrollers & thermo sensor all over the house.  
    Heatcontroller sensor detects low temp during pre-installed day schedule, then tells switch (at Central heating unit) to connect and provide warm water.

     

    Thx,

    Bart

    Share this post


    Link to post
    Share on other sites

    Do you use the Fibaro Heatcontrollers? And you have 10 pieces in you house?

    But you can't use the Heatcontollers into scenes to control you heater. You need Temperature sensors in the rooms and then you can make scenes to control you heater. 

    Edited by Reinhold

    Share this post


    Link to post
    Share on other sites

    Please login or register to see this image.

    Hi,

    All 10x heatcontrollers come with the temperature sensor. 

    As far as I thought this would work..

    Fibaro heatcontrollers are setup.

    Sensor detects where heat is needed according the schedule.

    Heatcontroller starts scene where it triggers the switch at the heater.

    Radiator is provided with hot water.

     

    Temp sensor detects heat is reached.

    Heatcontroller shuts down and triggers switch to shut down.

     

     

    Share this post


    Link to post
    Share on other sites

    Join the conversation

    You can post now and register later. If you have an account, sign in now to post with your account.

    Guest
    Reply to this topic...

    ×   Pasted as rich text.   Paste as plain text instead

      Only 75 emoji are allowed.

    ×   Your link has been automatically embedded.   Display as a link instead

    ×   Your previous content has been restored.   Clear editor

    ×   You cannot paste images directly. Upload or insert images from URL.


    ×
    ×
    • Create New...