h27xl

  1. SenileGit

    Horstmann 2 Channel Programmer won't allow different hot water and central heating settings

    Hi everybody, I have just replaced an old Horstmann Channel Plus H27 programmer with a Horstmann Channel Plus H27XL Series 2 programmer, but the new programmer duplicates whatever settings I put on the hot water channel, onto the central heating channel, and vice versa. Whichever one I change...
  2. F

    Secure Channelplus H27XL to Drayton Wiser Hub (WT734R)

    Hi, I've got Secure ChannePlus H27XL which I want to swap with Drayton Wiser Hub (WT734R - three channel) Could anyone please help me with the wiring of these below? (N & L I can see how to wire clearly) Here is a diagram for Secure ChannelPlus H27XL: And here is a diagram for Drayton Wiser...
    • firebot
    • Thread
    • channelplus drayton h27xl wiser wt734r
    • Replies: 8
    • Forum: Electrics UK
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