I have created an air loop for the outside air roof top unit. After running the simulation I have noticed that the IDF file has an "AvailabilityManager:Scheduled"; however the OS model did not have one. Also no matter what availability schedule I use for the fan in OS it will be overridden when translated to IDF file to match the Availibility manager schedule. I am not sure if I am missing something or the systems should be set this way.

OS model

EP model