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EBOM-2009 IEQc1.2:IAQ Best Management Practices—Outdoor Air Delivery Monitoring

Using VAV box CFMs as measurement of outside airfow

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Sean Blaevoet
Engineer
Guttmann & Blaevoet Consulting Engineers
LEEDuser Basic Member
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Will GBCI accept monitoring of VAV box CFMs as measurement of outside airflow during "economizer" mode?

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Ben Stanley
Senior Sustainability Manager
WSP - Built Ecology
LEEDuser Expert
188 thumbs up

Tue, 12/01/2015 - 22:44

Does the system operate under economizer mode 100% of the time and does that mode mean that the VAVs are receiving 100% outdoor air? If not, this couldn't work. If so, it might work but I think that you would have to determine the required outdoor air for each zone per the ASHRAE 62.1 standard and then set up the monitor to give the operator an alarm if the measured flow falls below the required minimum.

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