I am working on the IEQp1 LEED form and ran into a couple problems when filling out the information. The building I am working on is 12 stories high and has 3 AHUs (in the penthouse) that supply the entire building. I am trying to fill out the IEQp1 PDF but dont know what to put in for the total occupants. Would I put in the total number of occupants for the whole building, total number of occupants supplied by just one AHU or total number of occupants in the critical zone? Also, is the Az the area of the whole building, area of the building that one AHU supplies or the area of the critical zone? I would appreciate any assistance.
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Ben Stanley
Senior Sustainability ManagerWSP - Built Ecology
LEEDuser Expert
250 thumbs up
December 6, 2011 - 3:38 pm
If you are using version 4.0 of the form, you'll need to enter each AHU as a separate system in the appendix. For this form, each zone must be listed and the population and area should match up with known values for each zone.
If you'd like, you can use the ASHRAE 62MZ calculator and complete a separate calculation for each AHU. This calculator allows you to assess the critical zones of each system to determine the total outside air required. In other words, each zone does not need to be individually entered into the calculator.
If you are working with any version of the form other than version 4.0, you'll either need to request the updated version of the form or use the 62MZ spreadsheet.