The design for a current building involves installing CO2 sensors in the return duct of each densely occupied space rather than inside of the space itself. Since the LEED v4 BD+C handbook states Co2 monitors must be between 3 and 6 feet above the floor, does that mean the CO2 monitors for this project are ineligible because they are too high up?
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Pallavi Mantha
ARUPAugust 28, 2018 - 4:11 pm
Hi Edgar, did you ever get an answer on this? I'm having the same issue on a current project. Thanks!
Gustavo De las Heras Izquierdo
LEED Expert185 thumbs up
August 29, 2018 - 11:58 am
Hi there,
I think we are dealing with two different requirements:
-CO2 sensors located between 3 and 6 feet above floor level are intended to trigger an alarm in naturally ventilated spaces so that occupants can open the operable windows to ventilate the room.
-CO2 sensors in the return duct are necessary to comply with a Demand Controlled Ventilation (DCV) which provides outdoor air when a densely occupied space is in use and provides minimum airflow in order to save energy when the space is empty (auditoriums, theatres...).
I hope that helps,
Edgar Arevalo
Associate19 thumbs up
August 29, 2018 - 1:34 pm
Oh wait... nevermind guys. I just took a look again at the LEED v4 BD+C handbook, under page 652, and it says "CO2 sensors installed in return air ducts cannot be used to meet the requirements"
Pallavi, looks like there's the answer. Now I gotta get back to the designer to change installation of those sensors.