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  1. S

    ST7100 - CH Wiring Query

    Hi Chris / Ian, Thank you both for your assistance. Much appreciated.
  2. S

    ST7100 - CH Wiring Query

    Hi Chris, Thanks for your reply. Do I therefore take it that ST7100 does not require a wire connected to the CH Off terminal in order to control the central heating?
  3. S

    ST7100 - CH Wiring Query

    Hi, Have switched our hot water and central heating to our summer settings using Honeywell ST7100 and have found that the central heating is still coming on despite having set all settings instances not to. Effectively the central heating is coming on at the same time as the hot water is set to...
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