Recent content by Johnmdc

  1. J

    Potterton EP2002, PR2 to Tado Wireless starter kit v3+

    If you look at the picture stem posted and follow the lines you will see that 2 is CH off (which is very rarely used) and 3 is actually CH on.
  2. J

    Potterton EP2002, PR2 to Tado Wireless starter kit v3+

    NC means normally closed which would equate to off. NO means normally open or on So 1 on the potterton would go to HW NC (HW off) 3 to HW NO (HW on) And 4 to CH NO (CH on) The opposite of what you put before.
  3. J

    Replacing Honeywell ST699 Programmer with ST9400c

    The wire that was in 8 should be connected to L on your new clock. (It was linked to L before by the links from L to 5 and 5 to 8.)
  4. J

    Honeywell Sundial Plan Wiring Centre - Permanent Live - Nest

    I'm not sure about the nest, but with Hive it has a setting called"ready by" So if you set it to say 21° at 1930 it will come on early, so the temperature will be 21° at 1930. Not just start heating up at 19.30
  5. J

    Can a Hive installer take mercy on me pls?

    You don't need a relay. The live feed to the boiler goes to terminal 3 and the feed to the pump goes to terminal 4. You then need to set the Hive to "gravity mode". To do this you press the left hand button on the Hive receiver for 5 seconds the top green light will change from green to blue...
  6. J

    Anyone know the purpose?

    Could it be D U W Downstairs heating Upstairs heating Water Do you have 3 zone valves?
  7. J

    Nest 3rd gen, hot water works but radiators aren't coming on?

    So blue should be to terminal 3 Red to terminal 4 and Yellow to terminal 6
  8. J

    Nest 3rd gen, hot water works but radiators aren't coming on?

    Sorry my mistake. I've got water and heating the wrong way round.
  9. J

    Nest 3rd gen, hot water works but radiators aren't coming on?

    On the nest terminal 4 is heating off, terminal 6 is heating on.
  10. J

    Nest 3rd gen, hot water works but radiators aren't coming on?

    Also you need to move the blue wire in terminal 4 in the heat link to terminal 6
  11. J

    Nest 3rd gen, hot water works but radiators aren't coming on?

    You need to bridge terminals 2 and 3 in the wiring centre or just move the white wire in terminal 4 to terminal 3.
  12. J

    Hive thermostats

    So long as the existing stats are mains powered the Hive wired up stats would just replace them, you wouldn't need to change the control panel
  13. J

    Hive thermostats

    I'm not familiar with those Poly Pipe thermostats, maybe someone else is?
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