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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

Case 2

If the 62MZ calculator reveals that the critical zone is a zone with cooling only (with a min of 0), is that an appropriate reason to pursue Case 2?

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Dylan Connelly
Mechanical Engineer
Integral Group
LEEDuser Expert
342 thumbs up

Wed, 10/03/2012 - 15:40

Two Thoughts 1. You need to attempt to correct the your system unless it is infeasible because of the physical constraints of the existing ventilation system. So unless you can't reset your minimum to say 30% then you need to attempt to make corrections. 2. If your minimum is 0 then you won't be able to meet Case 2 either. In Case 2, you are required to provide 10 CFM/person under ALL normal operating conditions. Obviously your zone with a minimum of 0 can't provide 10 cfm/person.

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