It sounds like your goal is:
- Account for exhaust fan (EF) energy
- Let EnergyPlus know that air is moving from one zone to another
I've been using E+ for ~15 years, but have not explored the airflow network, so I can't help specifically with that. If I were doing this, I would:
- Make a simple air loop with only outdoor air in the amount of ambient air you desire (or assign proper outdoor air to an existing air loop)
- Add a Zone EF to exhaust that air
- add an electric load in the transfer zone downstream of the exhaust fan equivalent to the fan's power (both zones)
- add a ZoneMixing or ZoneCrossMixing object with the same airflow as the transfer airflow.
