I have a SWUA Trane package unit (40 tons) with airside Economizer and a water cooled condenser. I've recently added VFD control to the fan, and I'm considering removing the inlet vanes on the two fans. I've heard that you can increase the airflow from these units by doing this. Is this true? I don't want to spend the man hours removing the vanes and not get any results. Does anyone have any experience with this or had any luck by doing this?