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Zone CO2 Concentration
Carbon dioxide concentration measured in a conditioned zone, in parts per million (ppm). Used for demand-controlled ventilation (DCV) per ASHRAE 62.1.
Brick
CO2_Sensor
Category
iaq
Typical Range
-
Object Type
-
Haystack
Tags
zoneMarkerairMarkerco2MarkersensorMarkerpointMarker
Kind
Number
Point Function
sensor
Haystack Unit
ppm
Source Units
ppm
States
-
Aliases
Common
Common Misspellings
co2-sesnorzone-c02
Notes
- Outdoor ambient CO2 is typically 400-420 ppm
- ASHRAE 62.1 DCV typically targets 800-1000 ppm above outdoor baseline
- Rising CO2 indicates insufficient ventilation for occupancy level
- Sensor placement is critical — avoid near doors, diffusers, or exhaust