Dear Trnsys users, I’v modelled a multi-zone none-residential building in TRNbuild with HVAC system which is modeled separately in Trnsys. In order to implement a CO2 based demand controlled ventilation, I need to insert airflow between different zones as well as calculation of CO2 concentration for each zone which can be then connected to the controller of HVAC system. I have 2 questions:air 1. Regarding airflow between zones/ air coupling, I applied air coupling function in Trnbuild but the zone-temperatures changed a lot and they somehow got overheated although the air flow rates were given according to the technical documents, how can I solve this problem ? 2. Regarding CO2 based DCV Since I have no experience with Trnflow, I would like to know if anybody has any idea about it. Thanks in advance ! Best Regards, Hamidreza Esfehani |