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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

Increased ventilation instead of alarms?

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Maria Porter
Sustainability specialist
Skanska Sweden
LEEDuser Basic Member
205 thumbs up

I understand that for densely occupied spaces an alarm (visible or audible) is required. If a sensor was installed in the room, but instead of beeping/flashing it would increase the ventilation rate when CO2 is exceeded by 10 % over the set point? Could that be a way of meeting the credit intent? (We have complex ventilation systems with 100 % outdoor air and heat recovery, and most owners find the alarms being just a show and they don’t want them). Best regards

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Sun, 08/27/2017 - 22:58

No, you will need to provide an alarm. It does not need to be local. It is better practice to have it alert building staff remotely.
Profile picture for user maria.porter_1
Maria Porter
Sustainability specialist
Skanska Sweden
LEEDuser Basic Member
205 thumbs up

Mon, 08/28/2017 - 06:26

Thank you Andrew! So a visible alarm, to building staff remotely, with an increase of air would be fine then? A combo?

Thu, 08/31/2017 - 00:54

The automatic increase is not actually required. However, it is likely a good idea for design purposes.

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