Im relocating to SW Florida and currently soliciting bids for a replacement HVAC system. Two contractors said a 3 ton 2 speed system would provide ample cooling and de-humidification for my 1800 sq/ft home. Contractor number 3 who appeared to be very knowledgeable and helpful recommended the Trane 4TTX6048E (4 ton 2 speed unit). Although the 4 ton unit was oversized, this system would primarily be running at 2.5 Tons ( 7 amps) most of the time thus saving me considerable amount of money. He would add an additional return to accommodate the increase in cooling capacity.
Q. Dont all residential 2 speed scroll compressors perform this very same function with equal efficiency? If not:
Q. What manufacturer incorporates the most energy efficient 2 speed scroll compressors in their equipment?
Q. Will the increased price (significant) of this contractors recommended system prove cost effective?
Appreciate the help,