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NC-2009 IEQp1:Minimum IAQ Performance

IEQp1 ventilation cals

I am calculating the ventilation requirements for a conference room. From the ASHRAE Table 6-1 I selected .06 cfm/ft2 and 5 cfm/person. The room has occupancy of 8 people. Since the room is not regularly occupied, do I uses 0 people for the actual occupancy when I do the Leeds compliance? Would this be the same for a file storage room, copy room and library?

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Fri, 05/29/2015 - 16:37

You should use the peak occupancy, which is 8 people. There are some allowances for time averaging in spaces with variable occupancy, but you wouldn't apply that here. Just use the peak occupancy. The LEED reviewers want to know that the system can provide sufficient ventilation for worst-case conditions at peak occupancy.

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