My home is 8 years old, 1680 sq ft. Had to replace the 3 ton builders model this past week and discussed with my contractor a 3. Ton vs a 3.5 ton. Because we like to run it cold (70 degrees from April-September) the contractor suggested we go to a 3.5 ton, 15.25 seer. He did not think it would be overkill since we keep it lower than most people.
The new unit has no trouble keeping 70 degrees and cycles 3 times an hour almost like clockwork. 10 minutes on, 10 minutes off. I am a little concerned about humidity. At 70 degrees, it stays anywhere between 50 and 53%. To get it into the 40's I have to knock the temp down to 69 or below. I know low 50's is acceptable but it does make me wonder what I will be in for when summer ends and we want to run the thermostat at 72 or 73
Would you suggest I have the contractor reduce the blower speed? How much of a difference will that really make?? I think it's running full throttle right now...pretty strong. I know that would give longer cycles (and fewer) but how much of a real difference will it make in humidity? Or should I just leave good enough alone and be glad my system finally can keep up, and accept the low 50's as our RH range.
Full disclosure...the 2 days I have been testing this, it has been cooler than normal, high 70's low 80's outside, and mostly stormy with cloud cover. When full Florida summer returns, I have no idea what to expect.