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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

Minimum Indoor Air Quality Performance Calculator: critical zones and demand-controlled ventilation

We are working on certifying a building (EBOM 2009) and we want to use the Minimum Indoor Air Quality Performance Calculator  https://www.usgbc.org/resources/minimum-indoor-air-quality-performance-calculator .

1) I'm not sure how to include the critical zones. We plan to physically measure outdoor air flow at the system level but if we add a line for the critical zone, the calculator asks us to fill the excel cell "zone outdoor airflow provided for this critical zone, and we can't do that

2) We plan to complete the calculator for a min scenario (0 occupant) and a max scenario (max occupancy). At the time of measurement to verify the OA flow is adequate, what do we need to measure? If we measure the OA airflow with the damper set for the min occupancy and for the max occupancy, is that enough for LEED? 

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