Dear K.Anan
I recheck drawing and piping size for 9th – 12th Floor as CAD Files have change piping size as word file detail see under below;
Revise xpress 9-12 fl.
From CDU 10-11 the first branch to farthest more than 40 m. attached file piping diagram up sizing for piping length can be 90 m.
But the difference between [Outdoor unit to the farthest indoor unit] and [Outdoor unit to the nearest indoor unit]