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Changing Thermostat????

Discussion in 'Plumbing and Central Heating' started by Ripperoo, 4 Dec 2018.

  1. Ripperoo

    Ripperoo

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    My 20+ year old current Sunvic TLX room stat has 3 wires going to it (plus earth) and has been tested as follows:
    #1 Yellow - Switched 240v
    #2 Not Used
    #3 Red - 240v
    #4 Blue - Neutral

    I have an unused Danfoss RMT230 room stat (wiring diagram below) and wonder if it be a compatible replacement for the old Sunvic TLX I currently have?

    Would it be a direct swap, using the colours mentioned above (yellow, red and blue) in the positions/numbers shown below on the Danfoss RMT230?

    [​IMG]
     
  2. stem

    stem

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    The RMT230 is designed to, as the name suggests switch 230V. (Your diagram shows 24v)

    Capture.JPG


    So in your case, the RMT230 would connect as follows:

    Live (red) goes to 1 'COM'
    Switched live (yellow) goes to 2 'ON'
    Neutral (Blue) goes to 'N'
     
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  4. Ripperoo

    Ripperoo

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    Duh! Of course it is! How did I not even notice that?

    I wouldn't, care but I was sure I pulled that image from a PDF downloaded from the Danfoss site after searching for "RMT230", so don't know how I ended up with that particular diagram. Weird!


    Thanks for that info Stem, it is much appreciated, but still cannot believe I never even noticed the "24v" at the bottom of that image. LOL
     
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  5. Ripperoo

    Ripperoo

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    Cheers, worked a treat! :)
     
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