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Central heating wiring.

Discussion in 'Electrics UK' started by dingodeano, 10 Mar 2018.

  1. dingodeano

    dingodeano

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    Hello men. I haven’t posted on here for a while but I wondered if any of the experts of central heating wiring could give me a heads up.
    This is probably beyond mere DIY.
    I’ve got to go out to look at a job involving a y plan.
    Apparently there is an issue with wiring. But the information I have is not anything I’ve come across before. There is a three port valve one direction heat one water which goes to cylinder however there is a second two port valve between three port and cylinder. What is the purpose of this valve? Safety? Cheers. I have limited info as I’m not going out until Monday thx in advance
     
  2. DaveHerns

    DaveHerns

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    You'd probably be better posting in Plumbing and Heating
     
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  4. John D v2.0

    John D v2.0

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    Clearly international women's Day passed you by completely.

    To answer your question, it's possibly an unvented cylinder? In which case the second one is a safety measure to prevent the cylinder causing a danger by overheating.
     
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  5. dingodeano

    dingodeano

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    That was my assumption because the valve would serve no purpose except a limit of delivery of water into tank. Haven’t come across this configuration.
    Thanks men...and ....ladies and everyone in between (lucky for some) ....I will know more next week.
     
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