Hi I receive this comment of the reviewers:
"The Minimum Energy Performance Calculator indicates that outside airflow rates have been modeled identically in the Baseline and Proposed Case buildings (as designed). However, Section G18.104.22.168 exception c requires that, when the minimum outdoor air intake flow in the Proposed Case is greater than the amount required by the rating authority or building official (see EQp Minimum Indoor Air Quality Performance for ASHRAE 62.1-2010 calculations for the outdoor airflow rate required by the rating authority - GBCI), the Baseline be modeled with the minimum amount required by the rating authority, which is equal to the rates determined in EQp Minimum Indoor Air Quality Performance. In the case of this building, it appears that the Air Handling Units provide outdoor airflow rates that significantly exceed ASHRAE 62.1-2010 minimums.
Update the Baseline models to comply with this requirement, update the Air-Side HVAC tab, and provide SV-A reports to verify compliance."
I want to know if I have 3650 CFM of Outdoor Air on my model and the minimum airflow in EQp Minimum Air Quality Calculator I have 2348 CFM, so I have to use G22.214.171.124 Exception C? There's a maximum range between the proposed and the baseline? or I have to model my baseline with the 2348 CFM
Marcus ShefferLEED Fellow
7group / Energy Opportunities
5769 thumbs up
March 8, 2018 - 10:06 am
You have to model the 2348 cfm.
It looks like the outside air in the design is significantly greater than the calculated minimum. The current requirements in 90.1 will penalize projects whose design is significantly greater than the calculated minimum. There is no maximum range or maximum difference between the baseline and proposed values.
Juan Carlos Sanabria Fallas
March 8, 2018 - 2:26 pm
Thank you very much Marcus!