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central heating wiring probs still, Please help

Discussion in 'Electrics UK' started by hardbasta, 27 Mar 2008.

  1. hardbasta

    hardbasta

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    so the programmer & wires were burnt in a fire & all i have is some cables & a new programmer. i have traced the cables as far as i can without lifting laminate floors, the picture of the boiler doesnt necacerily represent seperate connections, just the wires dissappear under the floor towards the boiler, the top of the picture is the programmer back plate, i posted yesterday not realising that 1 valve was an actuator. the actuator is on the top circ pipe into the cylinder, the motorised valve is on the heating pipe just after the t to the circ pipe.

    i need to know which wires go into which number sockets on the programmer.
    if you can help gplease go from left to righ

    ie:
    L=1
    E=Earth <---- think this is right
    N=N <--- think this is right
    L=3
    N=4
    L=2
    E=3

    [​IMG]
     
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  3. hardbasta

    hardbasta

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    is this info not helpul at all? im sure securespark can help, you usually straight in there :p
     
  4. 333rocky333

    333rocky333

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    make and model of the programmer may help
    And of the old one if you remember
    may help
     
  5. hardbasta

    hardbasta

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    programmer is just a cheapo one, only wiring diagram with it is:
    N-L-DH off-CH off-DH on-CH on

    old programmer was melted in fire, not recognisable.

    sparky came, ripped it out & cut wires, then didnt come back.

    its ex council house so maybe that helps, heating been in 25 years+ i would guess.
     
  6. hardbasta

    hardbasta

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  7. 333rocky333

    333rocky333

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  8. hardbasta

    hardbasta

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  9. 333rocky333

    333rocky333

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    :cool:
     
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  11. hardbasta

    hardbasta

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  12. 333rocky333

    333rocky333

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    sorry cant help
    I think heat on goes to the roomstat
    and hw on and off both eventually get to the cylinder stat .
    But as for the boiler , pump, etc i am not sure.
    The E cable on right not sure if you meant it is used as earth or being used as something else.
    I cannot see no L+ N+E timer supply either

    I only follow the relevant plan drawing and usually work it out from there

    If you can get this to the plumbing forum or search there you may get better results
     
  13. hardbasta

    hardbasta

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    programmer first 2 are n & l, e is a block at bottom but programmer is double insulated
     
  14. Pensdown

    Pensdown

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    Sorry hardbasta, I'm with Rocky, I can't make head nor tail of your drawing.

    Do your 2 port valve actuators have the following cables?

    Brown
    Blue
    Black
    Orange
    Grey
     
  15. kevnurse

    kevnurse

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    Hardbasta, there is a huge difference between spending a few minutes writing a few lines of advice about wiring a lamp (or a consumer unit) versus studying a dodgy CH/DHW diagram, identifying wires and working out where they should go.

    You had a fire. You should have insurance to pay for an electrician to repair the system. If you don't have insurance, why should we spend considerable amounts of our own time trying to save you some money.

    Sorry, but it had to be said.
     
  16. hardbasta

    hardbasta

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    to kevnurse
    very helpful, youre an A1 TOOL, congratulations. Id rather start from scratch than a nob like u help me.

    i will rewire it myself tomorrow if nobody can identify the wires, its not in my house. just thought it easier than ripping the laminate up & rewiring with a new system.



    pensdown


    1 is a honeywel motorised valve, 1 is an actuator, both are different colour wiring.
    the grey from the honeywell valve meets the white from the sunvic actuator
     
  17. Pensdown

    Pensdown

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    Forget the cable colours and work it out.

    The heating ON terminal on the programmer should go into the room stat and then out to open the heating valve, brown & blue on most valves. Either via the valve micro switches (orange & grey) or as a direct link it should also start the boiler and pump.

    The hot water works the same but via the tank stat.

    If your charging for the work I feel sorry for the customer because I get feeling that for no good reason their laminate floor is in for a good hiding.
     
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