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.
Woolston is a suburb of Southampton, Hampshire, located on the eastern bank of the River Itchen. It is bounded by the River Itchen, Sholing, Peartree Green, Itchen and Weston.The area is rich in maritime and aviation history. The ancient hamlet grew as new industries, roads and railways came to the area in the Victorian era with Woolston being formally incorporated into the borough of Southampton in 1920.t is bounded by the River Itchen, Sholing, Peartree Green, Itchen and Weston. The area is rich in maritime and aviation history. The ancient hamlet grew as new industries, roads and railways came to the area in the Victorian era with Woolston being formally incorporated into the borough of Southampton in 1920.