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Removing Siemens rcr/10/433 receiver unit when installing hive

Discussion in 'Plumbing and Central Heating' started by tiberious, 13 Oct 2021.

  1. tiberious

    tiberious

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    Hi all,

    Looked extensively but can't find a definitive answer to this.

    Existing system is Worcester Bosch 30cdi boiler with potterton ep6002 controller and Siemens rdh10rf wireless roomstat ( and accompanying receiver unit rcr10/433-gb).

    I am installing the Hive 2 ( water and heating) to replace the potterton and Siemens units.

    I have removed the potterton and replaced it with the hive receiver unit ( wiring diagram attached). Everything worked fine as long as I turned up the Siemens roomstat to max.

    So the next stage is to remove the existing wireless roomstat and accompanying receiver unit.

    I have located the wire from the receiver unit to the "wiring centre" ( photo attached) which is White 4 core and earth, and removed it, but now the boiler doesn't fire up when the hive receiver is calling for heat for central heating.

    I assume from reading about other thermostats that I may need to put a link in somewhere - but where?

    The 4 cores from the Siemens are -

    Black (has brown sheath) - connected to terminal along with wire from CH valve

    Grey (has brown sheath) - connected to terminal along with a wire going to CH on in the hive receiver.

    Blue and brown I assume are neutral and live.

    Do I just put a link in between where the black and grey wires were?

    Hive instructions useless as they just say remove batteries from roomstat!.

    Help really appreciated - at the moment it's " so near yet so far"

    Many thanks in advance

    Steve
     

    Attached Files:

  2. CBW

    CBW

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    Whichever the 2 switching wires were at receiver end (L and Lx) these need to be joined together or wired so that ch on corresponds to the switch live for the thermostat.
     
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  4. tiberious

    tiberious

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    Many thanks CBW

    The black and grey wires went to L and LX, so can I just put a link in between the 2 terminals at the wiring centre which these 2 wires were removed from? ( Ch on to programmer and Ch motorised valve) or can I just put both those wires into the same terminal?
     
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  5. CBW

    CBW

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    Put them both in the same terminal for easiness.
     
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  7. tiberious

    tiberious

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    Thanks mate - I'll give it a crack!

    Edit - looks like that did the trick - thanks again!
     
    Last edited: 13 Oct 2021
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