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    swapping out a Potterton prt100 room therm for digital model

    Thanks.
  2. B

    swapping out a Potterton prt100 room therm for digital model

    I got the CM907's. They installed very easily and are so much better than what I had before. Thanks for your advice and suggestion. This is how I am running them. I have programmed the daily settings (6 of them) but I have to switch off the programmer before going to bed as the heating keeps...
  3. B

    swapping out a Potterton prt100 room therm for digital model

    Thanks for the advice. Great forum. I might sway towards the CM907 (x2). It should give me control if the old program panel is removed.
  4. B

    swapping out a Potterton prt100 room therm for digital model

    Sorry, but I updated my post with an image while you were posting.
  5. B

    swapping out a Potterton prt100 room therm for digital model

    Hi, I am thinking of swapping out my Potterton PRT100's for new digital thermometers. I've two PRT100's, my heating is zoned upstairs and downstairs. The PRT100's (see image) are both connected as follows: 1 brown wire 2 brown wire 3 empty (There is an earth cable but its...
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