Hi,
Can please someone give his/her suggestion on the question I have below ?
I received a comment for (Design Preliminary Submission) ventilation calculations indicate a total area (3,055 sqf) significantly less than plf2 (6219 sqf) for the IEQp1
Our response is;
The areas have been revised to match those of table EAp2-1 and to more closely match the architectural floor plans. 3055 sqf was brought up to 4429 sqf and the areas where are not included are the elevator, stairs, jan closet, small restroom, elect & mech spaces and storages (sum of non-ventilated areas is 1489 sf).
My questions is;
Plf2 shows 6219 sqf
Energy model is based on 5812 sqf
IEQp1 - ventilated area is 4429 sqf ( is this sqf reasonable for resubmission ? Does it need to be same as the energy model ? )
Thank you
Julia Weatherby
PresidentWeatherby Design & Co. Engineers
94 thumbs up
January 13, 2015 - 10:24 am
Usually, as long as you explain the discrepancies in area satisfactorily, differences will be accepted by the reviewer. Your summary appears reasonable to me.
Matt Dem
3 thumbs up
January 13, 2015 - 12:17 pm
Thanks Julia
Gustavo De las Heras Izquierdo
LEED Expert185 thumbs up
January 13, 2015 - 4:50 pm
I think this might be of your interest:
In the last project we also received a comment for matching "total peak users" stated in PIf3 and the sum of occupancy for all "ventilation calculators"
Courtney Royal
Sr. Sustainability ConsultantTaitem Engineering
50 thumbs up
April 28, 2015 - 11:53 am
Gustavo, how did you respond? did you by any chance change to ASHRAE default occupancy values? I am dealing with this issue now.
Thanks!
Gustavo De las Heras Izquierdo
LEED Expert185 thumbs up
April 28, 2015 - 12:05 pm
Hi Courtney! you can override ASHRAE default occupancy and input the calculator with actual users. For instance, in an open office space the excel calculates 13 people but in your architectural plans there are only 10 workstations. Then, I would insert 10 people in the "design population of zone" cell.