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FAQs about IEQp1 :

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

What if our systems do not meet the required outside air when systems are tested at worst-case conditions?

Our building has a single fan that supplies outside air to multiple AHU’s. Do we need to perform outside air testing at the supply fan or at all AHUs?

We have a VAV system where single AHUs serve multiple zones. Do we need to take outside air measurements at each VAV box?

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EBOM-2009 IEQp1:Minimum IAQ Performance

IAQ calculator v03

The new calculator (v2009v4_Minimum IAQ Performance Calculator_v03) from the Resources tab, does not count the ‘Zone Outdoor Airflow’ (column N) and it shows 0,00 no matter what system and values we put into calculator. Is this me or the calculator to make mistake? The 62MZ Calc has been substituted with the mentioned Calculator_v03 and can't be used any more, right? Or maby we can use the v02 calculator version?

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

Thu, 04/27/2017 - 15:57

I just tried it out and the v3 calculator seems to be functioning normally and populating zone outdoor airflow. Maybe it's an issue with the version of Excel that you're using? Otherwise, if you have an older version of the calculator that functions for you, I would think that would be ok.

Fri, 04/28/2017 - 06:15

Thank you Ben. I think we will try with the v2 version. Greetings.
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Andrzej Gutowski
LEED AP, BREEAM Assessor, WELL AP, Fitwel Ambassador |Associate Director
Colliers International Poland
LEEDuser Basic Member
4 thumbs up

Mon, 05/08/2017 - 07:34

Hi Iza, we had this problem as well - it seems EZ values are default set to use dot (".") instead of coma (",") as a separator (ex: 0.8 instead of 0,8). That cause problems to european excel that is using different separators. You can manually replace dot with coma it should work than.

Mon, 05/08/2017 - 07:43

Yey! It works, Andrzej. Thank you!

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