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Horstmann Centaur C21 To British Gas Hive

Discussion in 'Plumbing and Central Heating' started by Jonnylogan85, 28 Dec 2015.

  1. Jonnylogan85

    Jonnylogan85

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    Country:
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    Hi!

    Trying to replace Horstmann Centaur C21 to British Gas Hive. The wiring is confusing me a little... The existing wiring as attached picture. The control unit is connected to a Horstmann HRT3 thermostat.

    Any suggestions as to how to wire up, greatly appreciated....
     
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