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Plumbing & Plumbers Forum - Help.. Intermittent oil boiler lock out ( moved from Central heating Thread)
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Help.. Intermittent oil boiler lock out ( moved from Central heating Thread)

Discuss Help.. Intermittent oil boiler lock out ( moved from Central heating Thread) at UK Plumbers Forums; Remove tigerloop and change back to 1 piper. Had to do that to one week before last. Been fitted on a eaga job. Didn't need tigerloop and compression fittings everywhere....
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    Default Re: Help.. Intermittent oil boiler lock out ( moved from Central heating Thread)

    Remove tigerloop and change back to 1 piper. Had to do that to one week before last. Been fitted on a eaga job. Didn't need tigerloop and compression fittings everywhere.
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    Default Re: Help.. Intermittent oil boiler lock out ( moved from Central heating Thread)

    I considered that but MI says max pipe run for 0.5m head is 10mtrs @10mm and I have a 25metre run, Even if I upped it to 12mm that would only give me 20mtrs, Although should be fine when tank full..

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    Default Re: Help.. Intermittent oil boiler lock out ( moved from Central heating Thread)

    Just back from the boiler. .. Checked all joints that I could access.
    Correct me if I have done this wrong...(Two Pipe system) I put a vacuum gauge on the pump and fired boiler, It read 0 vacuum pressure??.
    I then isolated the fuel at the tank and pressure dropped to -.05bar. I then switched the boiler off and the pressure held. I left it for about 30 min and only lost a fraction -.005bar.
    Opened the tank isolation valve and went back to 0.
    From this can I presume I have pressure tested all of the fuel line suction and return to tigerloop. ?? And they are OK..?

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    Default Re: Help.. Intermittent oil boiler lock out ( moved from Central heating Thread)

    Quote Originally Posted by RayPlumb View Post
    Just back from the boiler. .. Checked all joints that I could access.
    Correct me if I have done this wrong...(Two Pipe system) I put a vacuum gauge on the pump and fired boiler, It read 0 vacuum pressure??.
    I then isolated the fuel at the tank and pressure dropped to -.05bar. I then switched the boiler off and the pressure held. I left it for about 30 min and only lost a fraction -.005bar.
    Opened the tank isolation valve and went back to 0.
    From this can I presume I have pressure tested all of the fuel line suction and return to tigerloop. ?? And they are OK..?
    Sorry Pressures are supposed to be -0.5bar at vacuum test. Cant read my own notes

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    Default Re: Help.. Intermittent oil boiler lock out ( moved from Central heating Thread)

    hate to say it but a pressure test means you apply pressure to the line and look for a drop over time
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