In the model I have, some of the rooms only have mechanical extraction of air. (Supply is via the doors/opening between zones). I used a Zone:Mixing object for the interzone air exchange in combination with a zone exhaust fan. When running the simulation a warning about unbalanced exhaust airflow is generated:
* Warning * In zone LEVEL1:1.03ARCHIEF there is unbalanced exhaust air flow. * ~~~ * During Warmup, Environment=BRUSSELS ANN HTG 99% CONDNS DB, at Simulation time=01/21 00:00 - 00:10 * ~~~ * Unless there is balancing infiltration / ventilation air flow, this will result in * ~~~ * load due to induced outdoor air being neglected in the simulation.
Is there a better way to model this?
