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Hive replacing Drayton SCR and LP111

Discussion in 'Electrics UK' started by Twisted Pair, 10 Dec 2019.

  1. Twisted Pair

    Twisted Pair

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    Good evening,

    I was hoping I could get some assistance with the Hive terminations to replace old. Any help is greatly appreciated.

    My current Heating system is:

    Glow Worm Flexicom 30 CX Combi boiler
    Drayton SCR
    Drayton LP111

    There is main flex from the boiler to the SCR.

    Pin 1 Blue N
    Pin 2 Red L
    Pin 5 Black
    Earth to Earth


    A separate flex runs from the SCR to the LP111

    Pin 1 Blue N
    Pin 2 Brown L
    Pin 3 An Earth wire which is not an Earth, just a botch from the original installer

    SCR Plate




    --------------------------------------------------------------------------------------------

    LP111 Wiring from SCR

    Flex from SCR

    Pin 1 Blue N
    Pin 2 Brown L
    Pin 3 Black Loop to L
    Pin 5 That Earth Wire from Pin 3 on SCR

    LP111 Plate



    Please can someone point in my the right direction on which what I am doing with the Pin 3 on the SCR which goes to Pin 5 LP111.

    Wire Hive from boiler flex with:

    Pin 1 Blue N
    Pin 2 Red L
    Pin 3 Loop to Pin 2
    Leaves the black wire for Heat on?

    Could I just leave the SCR wiring as is and remove the LP111 flex.
     
    Last edited: 10 Dec 2019
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  3. stem

    stem

    Joined:
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    If the wires highlighted below go to the boiler, and the other cable to the LP111, then with the Hive Single Channel version you can do what you suggest.

    scr (1).JPG

    Blue goes to Hive N
    Red goes to Hive L
    Black goes to Hive 3
    Link Hive terminal 1 to L

    Remove the cable to the LP111
     
    Last edited: 11 Dec 2019
  4. Twisted Pair

    Twisted Pair

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    Brilliant, thank you very much for the advice Stem.
     
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