A 16" round flex duct will accommodate up to a 3.5 ton unit
Ducts not the right? Size would be the? 4 tons = 1600cfm = 18" round duct or 16"x16" rec. duct.
14" Round or 14" x 12" Rec. will work.
Yes replace the three ton and four ton unit with another three ton or or four ton unit. If you looking to combine the units it may need some re-engineering of the ducts, evaporators, and air handlers either to combine or zone the two ? duct system.
About a tenth of a ton.
8x22 or8x24 duct
048 would be a 4 ton unit
a 4 ton unit
2.5 ton a/c unit
1.5 ton evaporator
Kwh per ton
The size of room is enough wich is suitable for capacity of 1.5 Ton A/C The size of room is enough wich is suitable for capacity of 1.5 Ton A/C