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Ghost flow help please

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Comments

  • Grallert
    Grallert Member Posts: 1,065

    can you hear the offending flocheck close when the circ stops? Very often they make a distinctly metallic tap when the weight falls to the seat.

    Miss Hall's School service mechanic, greenhouse manager, teacher, dog walker and designated driver

  • HVACNUT
    HVACNUT Member Posts: 7,284

    I don't think I've ever heard the sound of a Flo valve seat. I've definitely heard them chatter.

    My bet is the same zone gets the ghost flow after the swap. Spring Check on the return, or zone valve as @EBEBRATT-Ed suggested.

    This is fun when I'm not there.

    bjohnhy
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 19,782

    We can talk about it forever. A zone valve.

  • bjohnhy
    bjohnhy Member Posts: 165

    @Barley12 can you tell us the rise or the elevation difference from the boiler to the highest point of zone 1 (presumable the baseboard a radiators). If its 2 stories above your basement, that would be about 18 ft? What about the other zones?

  • Barley12
    Barley12 Member Posts: 46

    didn't get a chance to swap them today but hopefully tomorrow

  • Big Ed_4
    Big Ed_4 Member Posts: 3,400

    3/4" flow checks are too small and problematic with any rise . The lighter weight and smaller seat could be the issue .. A basement zone not a problem .. The 1" flow check would be the safest to install … Next time around

    There was an error rendering this rich post.

  • hot_rod
    hot_rod Member Posts: 26,862

    the pump second from left looks like a late model. It might take an internal check, check with Taco. Move it to the problem zone.

    That would be a$40.00 fix.

    IMG_1371.jpeg IMG_1372.jpeg
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
    Big Ed_4
  • Barley12
    Barley12 Member Posts: 46

    just swapped them…..time will tell

    bjohnhy
  • Barley12
    Barley12 Member Posts: 46

    Zone 1 is on the 2nd floor. The pipe has a 55' run in the basement then goes up 2 stories.

  • Barley12
    Barley12 Member Posts: 46

    2nd pump from the left is new. I replaced it a month or so ago. I do not believe it has an internal Flocheck but could be wrong.

  • Barley12
    Barley12 Member Posts: 46

    new pump says 007-F5

  • Barley12
    Barley12 Member Posts: 46

    zones 1,2,3 all rise to second floor. Zone 4 is first floor. Zone 5 is hot water tank

  • hot_rod
    hot_rod Member Posts: 26,862
    https://forum.heatinghelp.com/discussion/comment/1882309#Comment_1882309

    Swapped flow checks or the new pump to the problem zone?

    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • Barley12
    Barley12 Member Posts: 46

    just the flochecks to start with. Want to see if the problem moves.

  • HVACNUT
    HVACNUT Member Posts: 7,284
    https://forum.heatinghelp.com/discussion/comment/1882337#Comment_1882337

    Did you swap the whole valve, or just the inserts?

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