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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

AHU measurements

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Luis Parada
Jones Lang LaSalle
LEEDuser Basic Member
2 thumbs up

In our building we have two main AHU that supply 26 AHU (one for each floor of the building) and then we have VAVs for each zone in each floor. Do I need to perform measurements just in the two main AHU since this are the ones that have fresh air intake or we need to perform measurements in both the main and secondary AHU? Thank you in advance

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Profile picture for user dconnelly
Dylan Connelly
Mechanical Engineer
Integral Group
LEEDuser Expert
342 thumbs up

Tue, 12/11/2012 - 19:37

Luis, You will need to provide calculations/measurements for all the units. The calculations for the 26 units on each floor will dictate the OA requirements of the 2 main AHUs.

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