answered 2025-05-19 07:34:55 -0500
take a look at ZoneAirContaminantBalance, ZoneContaminantSourceAndSink:CarbonDioxide and ZoneControl:ContaminantController
ZoneAirContaminantBalance
ZoneContaminantSourceAndSink:CarbonDioxide
ZoneControl:ContaminantController
I am not sure about their availability in OpenStudio, but these objects are available in EP3