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Replacing CH Programmer

Discussion in 'Plumbing and Central Heating' started by Ripperoo, 8 Dec 2018.

  1. Ripperoo

    Ripperoo

    Joined:
    26 Feb 2007
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    Location:
    Cumbria
    Country:
    United Kingdom
    I have an unused Danfoss FP715 programmer and am wondering id I can use it to replace my pre-1998 Danfoss FP975 programmer?

    The terminal identification wall plate for my current programmer (Danfoss FP975) has 6 connections in addition to L/N/E and appear to be:
    #1 Neutral (Black) - Direct Connection From?
    #2 Linked From Live (Red)
    #3 Live (Red) - Direct Connection From ?
    #4 Live (Red) - Direct Connection From ?
    #5 Linked From 2 (Red)
    #6 Unused
    Old Back Plate.jpg Old Info Panel.jpg

    The terminal identification wall plate for the Danfoss FP715 only has 4 connections in addition to L/N/E
    New Back Plate.jpg New Info Panel.jpg

    Also, the dip switch layout is a little different between the two progammers, but I think I've got them correct.
    Old Dip Switches.jpg New Dip Switches.jpg

    Could someone be so kind as to let me know if I've messed up her?

    Got a funny feeling the Danfoss FP715 is incompatible for my current CH system, but worth asking

    Ta.
     
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  3. hertsboilers

    hertsboilers

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    975 3 to 715 1
    975 1 to 715 3
    975 4 to 715 4
     
  4. Ripperoo

    Ripperoo

    Joined:
    26 Feb 2007
    Messages:
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    1
    Location:
    Cumbria
    Country:
    United Kingdom
    Thanks for that Hertsboilers, worked a treat!. :)
     
    Last edited: 11 Dec 2018
  5. DIYnot Local

    DIYnot Local

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