1. Visiting from the US? Why not try DIYnot.US instead? Click here to continue to DIYnot.US.
    Dismiss Notice

Hive multi zone thermostat

Discussion in 'Plumbing and Central Heating' started by stevewright81, 28 Oct 2018.

  1. stevewright81

    stevewright81

    Joined:
    27 Oct 2018
    Messages:
    2
    Thanks Received:
    0
    Country:
    United Kingdom
    good morning.

    I’m after so information on wiring my Hives up. I’ve just bout the active heating and extra hive

    We have 2 thermostats to replace.
    In my current thermostat they only have 4 wire. L, N, E and a L when the heating is called (CH on?)

    I’ve put the wires to the corresponding pins on the hive and it fires up as it should. But when I press the CH button the boiler doesn’t fire up.

    Any ideas what I’m missing?
    I’ve seen some diagrams with a loop between the L and Common?
    It’s a Baxi boiler, with 2 Honeywell zone valves running Drayton combistats

    Thanks for looking
     
  2. stem

    stem

    Joined:
    20 Jul 2005
    Messages:
    6,782
    Thanks Received:
    1,608
    Location:
    Nottinghamshire
    Country:
    United Kingdom
    It will never work if there is not a connection to the 'com'. All Hive installations require a 'com' connection of some kind.

    The 'com' and 'Heating on' terminals are connected inside the Hive to a switch. When the Hive switches 'on' the two terminals are effectively joined together. If there is nothing connected to the 'com', the switch will operate and connect the motorised valve to ...nothing.... so nothing will happen.

    Connecting the 'com' to the 'L' gives the Hive something to switch to the motorised valve and make it open.

    AFAIK the combistat is just a thermostat and is not of the programmable kind. So is there a separate programmer for on / off time control you haven't mentioned?
     
    Last edited: 29 Oct 2018
    • Like Like x 1
  3. Sponsored Links
  4. stevewright81

    stevewright81

    Joined:
    27 Oct 2018
    Messages:
    2
    Thanks Received:
    0
    Country:
    United Kingdom
    There is a timer on the boiler. But it is switched to perm on so the thermostats control when it’s on/off.
     
  5. stem

    stem

    Joined:
    20 Jul 2005
    Messages:
    6,782
    Thanks Received:
    1,608
    Location:
    Nottinghamshire
    Country:
    United Kingdom
    Thanks. I just wanted to make sure that if there was one, that it was set to be permanently 'on' otherwise that could have stopped stop the Hives working.
     
    • Thanks Thanks x 1
  6. DIYnot Local

    DIYnot Local

    Joined:
    3 Sep 2019
    Country:
    United Kingdom

    If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

    Select the supplier or trade you require, enter your location to begin your search.


    Are you a trade or supplier? You can create your listing free at DIYnot Local

     
  7. Sponsored Links
Loading...

Share This Page