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Nest install query

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  • 21-08-2017 8:49pm
    #1
    Kagawa
    Registered Users Posts: 678 ✭✭✭


    Hi All,

    Got a nest installed today while I was at work. I have a couple of questions if anyone here has experience with these.

    1. My old system had three switches on the wall for downstairs, upstairs heating & hot water. This was controlled using an old timer. I told the installer to create 1 zone for the heating and the other for the hot water. I assumed that these switches would now be redundant but they seem to still control what zone is heated. Am I missing something?

    2. Again, when I turn on the hot water on the nest nothing happens, the boiler doesn't kick in at all. I think that if I turn on the heating on the nest and then switch the old hot water switch on the I get hot water. Does this sound right?

    I am assuming that the nest heat link is supposed to be controlling my whole heating system now. And I should leave the old switches on all the time now.

    Thanks in advance to anyone who can help me out on this.


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    #2
    Sleeper12
    Registered Users Posts: 16,949 ✭✭✭✭Sleeper12


    Here's what it sounds like to me.
    The three switches each control a motorised valve. Your old timer didn't control these at all, hence the switches. It seems that the nest is just replacing the old timer itself. So the nest is a timer and you can control it remotely but that's all it is.
    I'm sure you will find that the three switches aren't & never have been wired to either timer.
    I'm not sure who installed the nest but a good electrician will sort it out for you


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