I have a relatively new A/C units. (9 months old & 2 years old)
The condos are both roughly 800 square feet. 14x8 ducts in 2 bedrooms, plus two in the main room, and then 4x8 ducts in each bathroom.
I replaced the original A/C units (1975) which were 2 Ton GE units with a flat evaporator, vs...