1500
Yes, a 4.5 ton air conditioner would be the minimum size for 2000 square feet.
NO
yes
yes
Yes
24000 sq ft = 2229.67 sq metres (to 2 dp)
24000 square feet.
1500 sq ft.
300 square feet, or about 15 x 20 feet.
258,334 square feet.
around 400 SF, not ft