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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

Laboratory Classrooms

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Crina Bosch
Project Coordinator
Karpinski Engineering
LEEDuser Premium Member
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We have a lab classroom building that is served by an 100% OA unit. It maintains 6 ACH in all the lab spaces for ventilation while in use. This is obviously much higher than would be necessary for CO2 control. I don't think you could fit enough people in the space to go over the 1100 ppm setpoint. Has anyone every argued that CO2 sensors are not necessary in a scenario like this?

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Mon, 06/06/2016 - 20:29

I have designed many labs with LEED certification. I have never designed a lab that met the requirements for dense occupation though. Typically, the amount of lab casework per person prevents this. That being said, if you have a densely occupied lab and do not find a CIR allowing the monitors to be excluded, then you can either submit a CIR or provide CO2 sensors. I would opt for the sensors.

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