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Electrical Problem wiring

Discussion in 'Plumbing and Central Heating' started by ZiderIup, 10 Sep 2010.

  1. ZiderIup

    ZiderIup

    Joined:
    10 Sep 2010
    Messages:
    5
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    Location:
    Bristol
    Country:
    United Kingdom
    Hi All,
    Can anyone help with what wires I should connect to a new Horstmann Channel plus H27XL.

    I have a gravity HW and Pumped CH system with room stat (no cylinder stat)

    Here is the existing timer Horstmann Diamond


    Here is the existing wiring



    what wires control what and have had a go at replacing

    I have the installation instructions here but cannot work out what goes where exept for the L,N and E and I can see that I need to link L 2 & 5 which I have done. I have also removed the gravity link.

    I have DHW going to 1
    Room stat (yellow) going to 4
    CH pump (Red) going to 5
    CH Pump (Yellow) ? this is where I have a problem can not work out where to put this wire.


    http://www.horstmann.co.uk/downloads/ElectronicDocuments/Central-Heating/H21-27-27ZXL-ISeries2.pdf


    All fixed CH PUMP (Red) TO 4
    joined 2 yellows together
    Thanks to holmslow on the Electrical forum


    Any help will be most appreciated
     
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    DIYnot Local

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