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Ibc dc 12-125 repressurize

Hello, as the title says I need help figuring out how to repressurize this system, I have been looking at it for hours with no success. Any help would be nice, thanks in advance.


  • neilc
    neilc Member Posts: 2,708
    open the white handle ball valve by the PRV and BFP ?
    bottom right of your picture.
    or post a wider picture showing another feed valve.
    known to beat dead horses
  • SuperJ
    SuperJ Member Posts: 609
    edited February 2019
    Once you have the system up to pressure by opening that white handle you should run the pump and open any zone valves. It helps to isolate zones so only one is open at a time to force the air out. It looks like you have an air vent in the top left corner, is the cap loose enough to allow it auto vent?
    Do you have a proper micro bubble eliminator somewhere in the system?

    There should be an air vent installed on the top left corner of the boiler, you should be able to loosen the cap to allow the air to escape as it get trapped in the boiler.