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Hive

Discussion in 'Electrics UK' started by jonnym86, 20 Sep 2020.

  1. jonnym86

    jonnym86

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    can anyone help with wiring my hive heating system the wires same to be different on the old controller.
     
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  3. AndyPRK

    AndyPRK

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    Seams ok to me to fit a
    Single channel hive
     
  4. Taylortwocities

    Taylortwocities

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    Is that the back panel of the controller or a thermostat? Please state make and model, or photo the wiring assignments.
     
  5. jonnym86

    jonnym86

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    Its the controller. Its a centaurplus c21 series 2 horstmann.
     

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  6. flameport

    flameport

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    What was the original, totally different picture of?
     
  7. jonnym86

    jonnym86

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    This is what I need as per the hive manual
     

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  8. jonnym86

    jonnym86

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    Sorry that first image is one I found online its not mine
     
  9. flameport

    flameport

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    The dual channel Hive is a direct replacement for the Horstmann, it will probably fit onto the old backplate.

    If there is a separate room thermostat, that will need to be removed and a link installed instead.
     
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  11. jonnym86

    jonnym86

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    I have 2 thermostats in the house would I need to remove both. Also whats a link?lol
     
  12. ericmark

    ericmark

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    Drayton and EPH both do a thermostat designed for use with a zoned system, Drayton with a TRV's and wall thermostat on/off and EPH with OpenTherm with thermostats set as master/slave.

    But most gas central heating boilers are designed to modulate and although they will work with a zoned system they will not work efficiently.

    Hive have an unusual approach, you have a single wall thermostat which connects to TRV's wireless and the TRV's send a demand for heat, there is nothing to stop you connecting 20 Hive thermostats in parallel so any one will fire the boiler, but with zone valves, the thermostat does not connect to boiler, but to the zone valve, and the zone valve in turn connects to boiler, so boiler only fires up after the valve has opened.

    So the question is how much control do you want? If you want room by room control may as well latch the zone valves open or remove them or link together, they don't have a job to do any more, you can use the TRV heads, but if your OK with a group of rooms together then keep the zone valves.

    I looked at Hive, it seemed rather expensive, the wall thermostat was cheap enough, but the TRV heads are on the expensive side, I have 9 electronic TRV heads, 4 brought from last house Energenie at around £76 per pair, and 5 eQ-3 which are only blue tooth at £15, the non blue tooth down to £10 each. I use Nest not Hive.

    So you need to decide what compromise you want, yes could use all Hive TRV's but they are not cheap, I used the expensive TRV's down stairs, and cheap upstairs and kitchen, the cheap has open window detection which also detects an open door, so auto turns off heat in kitchen when unloading the car.

    So combining the two zone valves together and loads of programmable TRV heads is best, but expensive, but you only need one Hive wall thermostat, continuing with zones, cheaper but need a second Hive wall thermostat. Well say cheaper depends how many TRV heads you need.
     
  13. Taylortwocities

    Taylortwocities

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    Two thermostats? I think the Hive only syncs to a single thermostat. Do you have two separate heating zones in your house?

    re a link. You need to understand how most systems are wired. When the time to enable The heating comes around, the programmer (your Horstmann) sends a live out to the thermostat(s). If it’s cold, the thermostat returns the live back to the boiler which switches on.

    The Hive has its own thermostat. So you will need to disable(link out) the old thermostats. If you don’t, you’ll only get heat when the Hive stat is on AND the old stat is on. And you don’t want that!
    The best place to disconnect will be at the wiring centre. You could do it at the thermostats themselves, but you done want to do that because you’ll want to take them off the wall and plaster over the hole.

    So, find your Wiring centre, that’ll be where the heating valves are connected.
     
  14. jonnym86

    jonnym86

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    Yeah I'm happy enough just having it the way it is if possible. At the min I have an upstairs thermostat and a downstairs. Just not sure what I need to do to them if I connect the hive controller. My heating is oil fired also
     
  15. ericmark

    ericmark

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    Likely if oil fired it is not likely OpenTherm so Hive is likely good option, however we don't know how your system is set up, I also have an oil fired boiler and I had to fit relays to get independent control of main house and flat, but that is mainly as I have two pumps, and two motorised valves and thermo syphon domestic hot water with no water temperature sensor, or DMW motorised valve.

    Pictures are good, non of us have a crystal ball, need to know what you have.
     
  16. jonnym86

    jonnym86

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    I appreciate the help what pics would help best?
     
  17. jonnym86

    jonnym86

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    Does this help
     

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