Navien Combi boiler icon help

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sfowler
sfowler Posts: 2
in Radiant Heating

Does anyone know what this display icon in the upper right hand corner means? I have looked in my manual and all over the internet but, still can’t figure it out

Thanks in advance!

IMG_3124.jpeg

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  • 109A_5
    109A_5 Posts: 4,761
    image.png

    NCB-H User's Information Manual EN 240329.pdf

    image.png
    National - U.S. Gas Boiler 45+ Years Old
    Steam 300 SQ. FT. - EDR 347
    One Pipe System
  • 109A_5
    109A_5 Posts: 4,761
    image.png
    National - U.S. Gas Boiler 45+ Years Old
    Steam 300 SQ. FT. - EDR 347
    One Pipe System
  • sfowler
    sfowler Posts: 2

    THANK YOU!

    I have literally been in that manual for hours and missed that icon.

    Thanks again!

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