In the Trace 700 + LEED training example, the fans in the proposed model were in locked in at their nominal horsepower. I do not fully understand how Trace uses this information.

When the nominal hp is set like this, does Trace use the unloading curve and fan efficiency of the particular library member selected under "Type", and then project that fan's performance across the modeled operating conditions?

I want to make sure that I am still getting credit for using an efficient airfoil fan when I lock in the nameplate hp. I had initially thought that, if we have an efficient fan, that setting the full load energy rate to kW/ CFM-in wg would yield greater savings than setting the nominal hp.

Thanks!