Does anyone know how to add a supply fan into a unit ventilator? One of building's thermal zones served by a unit ventilator. So I select a unit ventilator from library for this zone as a zone equipment. However, the unit ventilator didn't have any supply air fan name on the Edit section and it also doesn't allow me to type in any fan's name to do changes manually. Hope to get any ideas from friends on this forum. Thanks!