If the equipment is going to be based off of the same ceiling level, then you should use the same Reference Plane (or Level) to host them both. As I mentioned previously, Ducts must be associated with a Level, not a Reference Plane.
River Itchen. The River Itchen is a beautiful chalk stream which flows for approximately 28 miles from mid-Hampshire to Southampton.he source of the Itchen is situated in Cheriton, near Alresford, and flows down to the historic city of Winchester passing through nature reserve Winnall Moors, and Winchester City Mill.
Origin of the Indus River. The Indus River originates near the Mansarovar Lake in the Tibetan plateau, on the northern slopes of the Kailash Mountain Range. Regardless of the fact that almost two thirds of the itinerary of the river is flowing through Pakistan, it has its presence on the Indian soil.