Fresh Air From Central Plant With Conditioned Air

Hello,

I am carrying out heat gain calculations for a large open space which will be served by a full air AHU system and have selected the "Fresh Air From Central Plant With Conditioned Air".

The documentation states "The illustration shows a recirculation system where primary fresh air is mixed with recirculation air then cooled to the defined supply temperature before being introduced to the room."

Does the calculation assume a degree of heat recovery? or is there any way of specifying a percentage of heat recovery?

Regards,