For air flow it looks like you can set the air flow using the fields for these objects.

AirTerminal:SingleDuct:ParallelPIU:Reheat

AirTerminal:SingleDuct:SeriesPIU:Reheat

For fan power you can you'll need to adjust the pressure rise to predict the W and W/L/s output from EnergyPlus. See the question below for resources.

Fan Power Inputs in OpenStudio

For air flow it looks like you can set the air flow using the fields for these objects.

AirTerminal:SingleDuct:ParallelPIU:Reheat

AirTerminal:SingleDuct:SeriesPIU:Reheat

For fan power you'll need to adjust the use pressure rise to predict the output W and W/L/s output from EnergyPlus. See the question below for resources.

Fan Power Inputs in OpenStudio

For air flow it looks like you can set the air flow using the fields for these objects.

AirTerminal:SingleDuct:ParallelPIU:Reheat

AirTerminal:SingleDuct:SeriesPIU:Reheat

For fan power you'll need to use pressure rise to predict the output W and W/L/s W/cfm from EnergyPlus. See the question below for resources.

Fan Power Inputs in OpenStudio

For setting air flow it looks like you can set the air flow using see the fields for these objects.objects in the Input Output Reference...

AirTerminal:SingleDuct:ParallelPIU:Reheat

AirTerminal:SingleDuct:SeriesPIU:Reheat

For This question has some resources for predicting fan power you'll need to use pressure rise to predict the output W and W/cfm from in EnergyPlus. See the question below for resources.Hope that helps.

Which AirTerminal object are you using? For setting air flow see the fields for these objects in the Input Output Reference...

AirTerminal:SingleDuct:ParallelPIU:Reheat

AirTerminal:SingleDuct:SeriesPIU:Reheat

This question has some resources for predicting fan power in EnergyPlus. Hope that helps.