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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 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?

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 due to design limitations. What should we do?

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

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?

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Forum discussion

EBOM-v4.1 EQp1:Minimum Indoor Air Quality

Minimum Air Requirement

Pulak Goyal

ESD Consultant

GreenA Consultants

LEEDuser Basic Member

0 thumbs up

May 2, 2024

I have an interior space going for LEED O+M v4.1 Interiors. The building is very old and the drawings of 1 out of 4 floors is not available. The rest of the 3 are available with the ACMV layout and the fresh air flow. It meets the LEED requirements. Can we assume the same airflow and layout for the 1 floor missing?

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Dave Hubka

Practice Leader - Sustainability

EUA

LEEDuser Expert

510 thumbs up

Thu, 05/02/2024 - 11:29

it has been my experience in this situation that you will not be able to assume airflows when mechanical drawings are not available. GBCI will probably require the team to provide a duct layout and duct sizes to confirm airflows entered into the vent calcs.

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