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Keston c40 honeywel 9400c programmer for central heating and hot water control and st 6100 for separate control of under floor heating circuit with polyplumb manifold and pump. cyl stat l641a 2x room stats t6360 .. need your help with a wiring diagram please?

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  • Anonymous Jul 24, 2008

    hanoywell st 9400c programmer ( click when programmer off)



    and timer get warm,,and why timer junps when off ,,,,,,

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Do a s plan plus and buy a poly plumb roomstat combined programer with built in relays as you require the relays to stop back feed! simple!

Posted on Jul 23, 2008

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