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4 bar pressure. Should I turn it on?!!

  • 24-12-2010 12:30pm
    #1
    kkelly77
    Registered Users, Registered Users 2 Posts: 1,673 ✭✭✭


    I had an issue with frozen pipes for the CH the last few days. Repaired a burst outside pipe and re-insulated it which seems to have thawed the freeze.

    However the pressure gauge on my boiler which normally reads just under 1 bar is now at it's max, 4 bar!!! Should I turn on the CH with the pressure this high? Or should I drain off some water in the CH system?

    Need to get the heating going while I have the chance. Thanks.

    K


Comments

  • #2
    heinbloed
    Registered Users, Registered Users 2 Posts: 1,632 ✭✭✭heinbloed


    The picture shows 1.6 bar .


  • #3
    aujopimur
    Registered Users, Registered Users 2 Posts: 3,953 ✭✭✭aujopimur


    You either have a faulty gauge or a faulty (3bar) safety valve.


  • #4
    Buford T Justice
    Registered Users, Registered Users 2 Posts: 6,262 ✭✭✭Buford T Justice


    heinbloed wrote: »
    The picture shows 1.6 bar .

    Thats the adjustable needle that you can manually turn, not the current pressure

    OP, did you refill the system after the repair? Are you sure all the ice has melted.

    There may be an issue with the gauge, as the pressure relief valve should blow off at 3 bar.


  • #5
    kkelly77
    Registered Users, Registered Users 2 Posts: 1,673 ✭✭✭kkelly77


    Fingers McGee wrote: »
    Thats the adjustable needle that you can manually turn, not the current pressure

    OP, did you refill the system after the repair? Are you sure all the ice has melted.

    There may be an issue with the gauge, as the pressure relief valve should blow off at 3 bar.

    Only as soon as I posted my original message, I check the pressure valve again only to find it back to 0 again.

    Unfortunately I found another burst pipe after some investigation. Replaced burst section and did my best to reinsulate. Have a blower heater on the pipes at the moment. Gauge still reading 0.

    FMcG - I refilled the system after repairing first burst pipe.


  • #6
    SC024
    Registered Users, Registered Users 2 Posts: 586 ✭✭✭SC024


    heinbloed wrote: »
    The picture shows 1.6 bar .

    Have another look there...


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  • #7
    heinbloed
    Registered Users, Registered Users 2 Posts: 1,632 ✭✭✭heinbloed


    Oops, wrong reading...
    Originally Posted by heinbloed viewpost.gif
    The picture shows 1.6 bar .

    The pressure release valve might be frozen as well ?


  • #8
    Bruthal
    Closed Accounts Posts: 13,422 ✭✭✭✭Bruthal


    aujopimur wrote: »
    You either have a faulty gauge or a faulty (3bar) safety valve.

    Maybe the safety valve outlet is also frozen.


  • #9
    kkelly77
    Registered Users, Registered Users 2 Posts: 1,673 ✭✭✭kkelly77


    robbie7730 wrote: »
    Maybe the safety valve outlet is also frozen.


    Even though it moved earlier today?


  • #10
    Buford T Justice
    Registered Users, Registered Users 2 Posts: 6,262 ✭✭✭Buford T Justice


    If you had another burst pipe, you will need to top up the system again.


  • #11
    kkelly77
    Registered Users, Registered Users 2 Posts: 1,673 ✭✭✭kkelly77


    Fingers McGee wrote: »
    If you had another burst pipe, you will need to top up the system again.

    It's a vented system so any time I've had to drain it before I just let the header tank refill and that would take it back up to ~1 bar.


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  • #12
    Bruthal
    Closed Accounts Posts: 13,422 ✭✭✭✭Bruthal


    kkelly77 wrote: »
    It's a vented system so any time I've had to drain it before I just let the header tank refill and that would take it back up to ~1 bar.

    Every meter high to the water head is 0.1 bar so for 1 bar it would need 10 meters on a vented system.


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