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If my project is using air handlers that supply 100% outside air at a constant volume, do I still need to install an airflow monitoring device?

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NC-2009 IEQc1:Outdoor Air Delivery Monitoring

PTHP

We are working on a hotel with PTHP units. PTHP units have manual outdoor airflow monitors that, once set, are not adjusted unless the unit is taken apart. There isn't a way to automatically monitor these units. Is this still acceptable to achieve this credit? Would it be acceptable if we provided CO2 sensors in the room instead of the automatic airflow monitors?

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Emily Catacchio
Sustainability Specialist
Wight and Company
LEEDuser Basic Member
415 thumbs up

Fri, 10/14/2011 - 02:42

Kristin,Can you install outdoor air monitoring devices in each space? As opposed to at the PTHP units? I do not think only installing CO2 sensors will be enough to earn this credit, since one of the requirments is to montor outdoor air flow. Anyone else have experience with this?

Thu, 04/19/2012 - 20:29

I assume that when you said "THP units have manual outdoor airflow monitors" you meant that they have manual dampers. You may be able to install an airflow monitor (which is not required to modulate the damper) in each unit. If there is no room to install one in your selected model then I think you will simply not be able to achieve this credit. Companies such as Ebtron make special application AMS's that may fit your need. Hope that helps (even if it's late).

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