Outdoor air monitoring

VISHESH AGARWAL

LEEDuser Basic Member

1 thumbs up

Project location :

India

June 9, 2016

If TFAs are having manual dampers for fresh air intake so is we need to change the in motorised dampers which can be communicated by sensors.for the monitoring of the CO2 level in the space and then to control the fresh air intake based on the ppm of CO2.

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Melissa Kelly

Sustainability Specialist

Gensler

LEEDuser Basic Member

66 thumbs up

Wed, 07/06/2016 - 15:00

Hi Vishesh, The requirements for this credit are that the monitors generate an alarm that communicates to the operators that the dampers need to be adjusted, so it seems like it's technically possible to achieve if the monitoring requirements are met and that alarm is sufficient to let the operator know that the damper needs to be adjusted immediately. However, from a practical point of view, I think that this is a much more valuable and effective approach when the CO2 and OA monitors do automatically control motorized dampers.

Summer Minchew

Managing Partner

Ecoimpact Consulting

LEEDuser Expert

171 thumbs up

Thu, 06/21/2018 - 16:13

What if the air handling units are mechanically configured to meet the 30% increase in outdoor airflow specification and the dampers are locked into position which do not allow the airflow to change? Does anyone have experience as to whether this will meet or not meet the credit requirement?

Ben Stanley

Senior Sustainability Manager

WSP - Built Ecology

LEEDuser Expert

188 thumbs up

Fri, 07/20/2018 - 14:59

My understanding is that you would still need to install an outdoor air monitoring device. For VAV systems, the delivered outdoor air flow could vary depending on the fan speed and for any system, it's relatively common for outdoor air dampers to be adjusted by maintenance personnel during operations and so having the monitoring device provides extra assurance that the required airflow is delivered.