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combined posts - pumping to/away piping math

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Jeff Elston
Jeff Elston Member Posts: 289
in THE MAIN WALL
Can you sketch out the rest of the manifolding ( supply and return)? How many feet to the highest pipe? vertical rise?
I have seen these things before. Piped in this way the pump at the boiler return was keeping a large header hot and keeping the flow through the boiler. I see some three way valves, if all the three way valves are stroked closed to the boiler supply then the boiler may not have the flow it needs.
good luck

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  • [Deleted User]
    [Deleted User] Posts: 0
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    combined posts - pumping to/away pump math

    here's the drawing of the piping and the numbers; is the exp tank to discharge side of pump piped correctly, and is the pump correctly sized?

  • Unknown
    Unknown
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    What is

    the circulator on the return being used for ? Is it running it's own zone ? I guess not if it's on 24/7 .

    Are all the return pipes connected to this circ before it heads into the boiler ?
  • [Deleted User]
    [Deleted User] Posts: 0
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    circs connected to boiler?

    i believe so, and here are some pics but it's not easy to see it all
  • [Deleted User]
    [Deleted User] Posts: 0
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    no, unfortunately,

    i can't sketch it out because i don't have enough pics and i can't remember it all, but it's a 2 story bldg
  • Jeff Elston
    Jeff Elston Member Posts: 289
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    Oh well

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