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combi v system

Discussion in 'Plumbing and Central Heating' started by rhinosaw, 1 May 2019.

  1. fixitflav

    fixitflav

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    That's the way to do it! If the 18mb is mandatory you would expect W-B to be aware of it.
     
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  3. hard-work

    hard-work

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    I assume they never touched the meter at all. If they did wouldn't they say so?
     
  4. ianmcd

    ianmcd

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    on Guernsey the gas meter pressure is 14mbar and the lpg/air supply CV is 625 below half of Nat gas, the outlet pipes to appliances are sometimes 2"
     
  5. Grumpy Gasman

    Grumpy Gasman

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    Fixitflav & hard-work clearly show their incompetence when discussing gas related topics.
    The YouTube video clearly shows the manometer measuring the gas burner pressure and not gas working/inlet pressure on the Potterton Profile boiler.
    The 3 bods in that video are a bunch of clowns (I personally know them) as is fixitflav and hard-work.
     
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  6. nwgs

    nwgs

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  7. Grumpy Gasman

    Grumpy Gasman

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    Ian Puddick MD of the London Boiler Company also boiler expert to BBC, ITV & C4.
    Well well well, you couldn’t make it up.
     
  8. hard-work

    hard-work

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    Clown, they said it was working pressure. Listen again. They are all GasSafe men, like you, so they must know what they are doing. Do they?
     
    Last edited: 4 May 2019
  9. Grumpy Gasman

    Grumpy Gasman

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    The working principle of the zero/1:1 governor does NOT “draw the gas through the pipe” as stated above.
    Fan pressure whether negative or positive acts upon a diaphragm (offset) and in turn regulates the volume of gas to burner/mixing chamber by bleeding-off pressure to the underside of working pressure diaphragm.
     
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  11. Grumpy Gasman

    Grumpy Gasman

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    It clearly wasn’t “working pressure” but “burner pressure” that they were measuring on that Potterton Profile.
    The inlet/working pressure on that Potterton Profile would of also shown >21mb.
    Do you not know the difference between the burner pressure test point and inlet pressure test point on that Potterton Profile? Clearly not.
     
  12. hard-work

    hard-work

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    I just had another look with a full screen Youtube vid. Wow they did take the burner pressure which is to the right of White Rogers control valve. I cannot believe this. I am shocked! These GasSafe men are not competent?
     
  13. hard-work

    hard-work

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    It depends on which control valve fitted - Honeywell or White Rogers?
     
  14. Grumpy Gasman

    Grumpy Gasman

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    So you required a “full screen” in order to ‘clearly see’ that the manometer tube was connected to the burner pressure test point as opposed to the inlet/working pressure test point which is located to the left side of gas valve? Lol what a fool.
     
  15. hard-work

    hard-work

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    Do you mean it was not connected to the burner?
     
  16. Grumpy Gasman

    Grumpy Gasman

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    You tell me.
     
  17. hard-work

    hard-work

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    You are doing the telling.
     
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