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How many CO2 Sensors do I need to place in occupied large space?

NC-2009 IEQc1:Outdoor Air Delivery Monitoring
posted by  Mamun Ferdaus  on 

we have a project of around 20,000 sft and floor height 14 ft. its a textile project. 210 people work there. the space is ventilated by evaporative cooling system.

6
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Thu May 8, 2025, 11:58 am

Airflow measuring devices

NC-2009 IEQc1:Outdoor Air Delivery Monitoring
posted by  Stella Stella  on 

Hi, In order to file compliance with IEQP1 & IEQc1: does the Airflow measuring devices need to be connected to BMS? Can they be standalone and programmed to generate an alarm?

3
Sat Mar 5, 2022, 7:03 am

Placement of CO2 sensors in a stadium bowl?

NC-2009 IEQc1:Outdoor Air Delivery Monitoring
posted by  chris buntine  on 

A sports stadium bowl exceeds the occupant density threshold and therefore would require CO2 sensors.

5
Wed Mar 17, 2021, 3:59 pm

CO2 monitors location

NC-2009 IEQc1:Outdoor Air Delivery Monitoring
posted by  Isir Messo  on 

Hello everybody.

Our client want to install CO2 sensors into the tables (offices), that is below 3 feet above the floor. Usually tasbls are 2.4-2.6 feet height.

1
Wed Mar 17, 2021, 6:20 am

Occupant Density Calculation for IEQc1

NC-2009 IEQc1:Outdoor Air Delivery Monitoring
posted by  Keerthi Ratnayake  on 

There is a office room (100sqft) and the permanent occupancy is 1 person. In the layout, there are three chairs for the permanent worker and for two visitors.

1
Wed Aug 28, 2019, 10:56 am

CO2 Monitoring in Telephone Rooms

NC-2009 IEQc1:Outdoor Air Delivery Monitoring
posted by  Sue Clark  on 

I am working on a project with a number of small quiet rooms. These rooms are approximately 35sf and their purpose is to provide privacy for individuals during phone calls.

13
Fri Nov 23, 2018, 10:06 am

How to fill out the Credit form for IEQc1 for a 100% outdoor air system that does not require OA monitoring?

NC-2009 IEQc1:Outdoor Air Delivery Monitoring
posted by  Nishank Shah  on 

I have a 100% OA ERU that operates constantly on an occupancy schedule. There is no Outdoor airflow monitoring device on the unit and no CO2 sensors for the densely occupied spaces.

4
Tue May 22, 2018, 3:14 pm

How to fill out the Credit form for IEQc5 for a 100% outdoor air system that does not require OA monitoring?

NC-2009 IEQc1:Outdoor Air Delivery Monitoring
posted by  Nishank Shah  on 

I have a 100% OA ERU that operates constantly on an occupancy schedule. There is no Outdoor airflow monitoring device on the unit and no CO2 sensors for the densely occupied spaces.

0

Monitoring OA via calculation for IEQc1?

NC-2009 IEQc1:Outdoor Air Delivery Monitoring
posted by  David Gibney  on 

During one of our geek sessions the following conversation came up: would monitoring OA be allowed via a calculation? For example, say we’re monitoring supply air and return air.

2
Mon Jan 22, 2018, 6:13 pm