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Recent content by btuhack

  1. btuhack

    Mitsubishi city MULTI systems

    Need some feedback on the Mitsubishi city MULTI applications from those who have a project or two under their belt. I'd like to hear the "wish we would have..." and "sure glad we..." type comments that only experience can provide. TIA
  2. btuhack

    how to count number of rows of an AHU coil...

    Rows are counted front to back and define the depth of the coil in physical terms. Don't confuse rows with qty of circuits and qty of passes per circuit.
  3. btuhack

    Temperature transition.

    Data loggers are cheap, buckets are cheap, ice is cheap and I bet you own a refrigerator capable of maintaining 36f. Run an experiment and tell us your results.type/temp/quality of ice, water/ice ratio, and surface area to mass are all important factors.
  4. btuhack

    Zoning exterior with interior room

    go back to a jan 10 posting, it may apply to you. regarding exterior zones, try to solve/minimize window problems with window solutions(ext shading, film, drapes, etc) when possible. Also, keep the fan "on" to mix the differences and see where that gets you. return & stat locations matter too...
  5. btuhack

    Mini-Split Q

    The equipment specifications and/or installation directions should offer a complete breakdown of operating performance. Simply "GOOGLE" the Make and model of said device and download the PDF to your computer, then "PRINT" or "SAVE" to the appropriate file. When in a pinch, you might try using...
  6. btuhack

    Thermal VAV versus Powered VAV

    Yup,wait... NO,...wait... what?

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