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FAQs about EQp1 :

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

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

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

What if after our Preliminary Review we have to revise 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? Wou

My building has 80 AHUs providing ventilation to building spaces. Do I have to do the ventilation calculations and conduct outdoor air measurements for each one?

Our system cannot provide enough outdoor air to meet ASHRAE 62.1-2010 due to design limitations. How much outdoor air must we provide to meet Case 2 instead?

The outdoor air intake for our ventilation system is not accessible, and it’s not possible to measure the outdoor airflow directly. How can we determine the outdoor airflow for this system?

How do I find whether my project is located in a non-attainment area for particulate matter or exceeds the prerequisite ozone requirements?

What happened to the IEQ Space Matrix that was available to version 2009 projects? What should I reference to determine how spaces in my building should be categorized for this prerequisite?

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Forum discussion

EBOM-v4 EQp1:Minimum indoor air quality performance

How to justify that a parking garage is ventilated enough?

Joan Mora Juvanteny

LEEDuser Basic Member

0 thumbs up

December 19, 2023

Hello,

We have some problems to justify that an exterior parking with a covered part meets the Table 6.5 minimum exhaust requirements. The covered part is one-side opened so we can't apply the exception when two or more walls are at least 50% open (in our case, one wall 100% opened). We are convinced that the opening is enough for natural ventilation of only 10 cars.

Is there any way to compute the exhaust rate, in order to justify that it is above the ASHRAE 62.1-2010 standards (3.7 l/s·m2) or Europe standards, without the need of a CFD modelling?

Thanks

Joan

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