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.
Edward H. Thompson, âThe Home of a Forgotten Race: Mysterious Chichen Itza, in Yucatan, Mexico,â National Geographic, 25, 6 (June 1914) 587. Itâs hard not to be impressed by the imposing structures of Chichen Itza, one of the most famous and most visited of the sites of Mayan civilization ruins on Mexicoâs Yucatan Peninsula. As impressive as Europeâs ancient ruins are, they have a fundamentally different feel than those in Central America.