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Discuss Three port wiring question in the Central Heating Forum area at

  1. spanner

    spanner Plumber GSR

    Hi guys.
    Hoping for a quick Three port answer.
    When wired to programmer tined switch?,is this the common wire to cylinder stat??.
    As what I'm trying to retrieve is when the water is used and goes below set temperatures to fire up boiler.
    Just trying to get heads up about the wiring again.
    This valve isn't a mid position it stays one way or other
    Prioiritse hot water
  2. Harvest Fields

    Harvest Fields S. Mod Trusted Plumber GSR Top Contributor!!

    Say that again mate?
  3. Chuck

    Chuck Well-Known Member

    Sorry mate, it's forked. :)
    • Funny Funny x 1
  4. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!


    • Winner Winner x 2
    • Like Like x 1
  5. CBW1982

    CBW1982 GSR

    • Agree Agree x 1
  6. SJB060685

    SJB060685 Top Contributor!!

    You can download the Honeywell app that has all these on system @spanner@spanner
    • Useful Useful x 1
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