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  1. M

    Programmer - gravity or pumped?

    Hi Just replacing my 2 channel programmer as the old one has failed. New one is a Danfoss Randall FP715SI (previous Sunvic select 207 XL). On the back of the new one (and old) are 4 binary switches, one to select gravity or pumped system. We have a Potterton statesman oil-fired boiler, the...
  2. M

    is fused spur necessary for alarm?

    Hi I'm looking at a Visonic alarm though as a diy'er I realise this is not encouraged. Some of their systems come with a Euro 2-pin plug and some without a plug. What little info I can find suggest that both should be wired via a 3 amp fused spur. Why is this necessary?, is it just so...
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