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What if after our Preliminary Review we have to re-work the ventilation rate procedure calculations and find that we need to make corrections to the system in order to meet the prerequisite? Can we redo the outside air testing after making corrections? Wo

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EBOM-2009 IEQp1:Minimum IAQ Performance

Which calculator version I have to use

I have downloaded the "USGBC LEED 62MZCalc (May 2011) and I have to complete manually the cells that correspondon to the "Inputs of the system". In the "2002UM-62MZ" calculator I do not have to do this because this cells give me automatically an average value of the As, Ps and Vpsd. What I have to do? I have submitted this prerrequesite with the "2002UM-62MZ" calcualtor and the review team have not told me nothing about the calculator version in the review report, so could I submit with this version? Besides, Do I have to leave the calculator in "IP" units mode or can I leave it in "SI"? I have submitted it in SI and the review team has not told me nothing about this as well, so I supose I can leave it in SI mode, or not? Thank you very much.

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Ben Stanley
Senior Sustainability Manager
WSP - Built Ecology
LEEDuser Expert
188 thumbs up

Tue, 04/16/2013 - 14:45

Patricia, generally you only need to make revisions to the calculations in order to directly respond to the reviewer technical advice from the preliminary review. Related to the 62MZ calc, it's typically best to use the USGBC LEED 62MZCalc but if the review team hasn't requested that you change calculators then you should be ok. Also, if you have entered all of the zones served by the system into the calculator then you don't need to manually enter the As or Ps values for the system inputs. But if you only want to enter potentially critical zones into the calculator then you do need to enter those values manually. Keeping everything in SI units is ok but it may be helpful to point that out to the review team for the final review submission.

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