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ECM Pumping

NRT_Rob
NRT_Rob Member Posts: 1,013
in THE MAIN WALL
anyone know if the "operate in the middle third of the curve" rule holds true for ECM pumps?
Rob Brown
Designer for Rockport Mechanical
in beautiful Rockport Maine.

Comments

  • Unknown
    Unknown
    ECM Pumping

    Hi Rob



    Short answer is you can select an ECM pump anywhere between min/max head and 0 to max flow without any large loss in efficiency, unlike a constant speed pump where as you have suggested should be selected in the middle 1/3 of it's flow range (to get close to it's BEP).



    Typically I select ECM pumps to the right hand side but they rarely run there due to us constantly oversizing pumps and systems.



    Hope this helps...
  • NRT_Rob
    NRT_Rob Member Posts: 1,013
    nice

    this tech just gets better and better the more I learn about it.
    Rob Brown
    Designer for Rockport Mechanical
    in beautiful Rockport Maine.
  • Unknown
    Unknown
    ECM Pump Selection - Where on the curve?

    Rob, I totally agree - the tech is waaaay cool.  As I say in my training classes, 4 innovations in our industry:



    1)  Electricity

    2) Oxygen Barrier (cross link) pipe

    3) Condensing Boilers

    4) Variable flow ECM pumps



    Drop me a line with your mailing address and I will send our our latest traing CD with ECM app drawings (drawn by Siggy) and lots of other info...
This discussion has been closed.

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