Replacing Drayton LP111 with Center BDR91 - HELP!

Discussion in 'Engineers' Talk' started by Pete90, Jan 8, 2022.

  1. Pete90

    Pete90 New Member

    I'm looking to replace my fixed boiler control unit with a wireless thermostat (so that i don't manually have to switch boiler on & off). Need some help in understanding how to rewire my existing control unit (Drayton LP111) with the wireless thermostat (Center BDR91). I've added all the images i have of the wiring. Hopefully i can get some help on this

    TIA
     

    Attached Files:

    Pete90, Jan 8, 2022
    #1
  2. Teki

    Teki Screwfix Select

    Which boiler do you have?
     
    Teki, Jan 9, 2022
    #2
  3. Pete90

    Pete90 New Member

    Vokera Linea Plus
     
    Pete90, Jan 9, 2022
    #3
  4. Teki

    Teki Screwfix Select

    LP111 - BDR91

    Brown - L
    Blue - N
    Connect jumper wire from second L terminal to A
    If there is another wire in terminal 1 - also connect it to A
    Wire in terminal 3 - B

    If you have an existing wired thermostat, the wires will have to be linked.
     
    Teki, Jan 9, 2022
    #4

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