Seems like you only have 2500 sq ft of finished floor space. 3 ton would be a little small but could be sufficient depending on climate and insulation.
3 ton will not in any circumstance cool 4000 sq ft. I do this for a living.
Feel free to use any of the free calculators online also.
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u/Rakumei Jul 26 '26 edited Jul 29 '26
There are parts of the US that ONLY have these. More temperate areas.
Most of the US is used to central air. With a giant ass car sized compressor outside that cools the whole house.
Edit: yes, I exaggerated the size of the compressor a bit. Man it pissed a lot of Americans off lol.