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Variable Flow Pump Sizing

tim smith
tim smith Member Posts: 2,807
in THE MAIN WALL
Figure out what your ft of head is for your pipe loop, contact either your Taco or B&G local rep. and let them run the selection. I would hope this is more that a single loop, I think 3 or 4 loops with same # of pumps might be a good decision. Good luck.

Comments

  • MagicJS
    MagicJS Member Posts: 3
    Pump Sizing with Variable Flow

    Hi I'm designing a residential building using PTACs with HW coils & motorized valves for cooling/heating. When I multiply 2gpm to the number of units the total is over 600 GPM. Building cooling load at 20 Delta T comes out to about 450 GPM.
    Normally variable speed pumps can match the load easily, but the developer is selling the building and does not care about long term payback. He want to use constant speed pumps only.
    Does anyone know how I should size the pumps?
  • Joe Mattiello
    Joe Mattiello Member Posts: 720
    Taco pumps with VFD

    Taco pumps are great for pumping hot water. Please call me if you need help sizing.
    Taco, Inc.
    Joe Mattiello
    Technical Service Technician
    joemat@taco-hvac.com
    401-942-8000 X 484
    www.taco-hvac.com
    Joe Mattiello
    N. E. Regional Manger, Commercial Products
    Taco Comfort Solutions
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