I got a Quote on a new air conditioner to replace my existing 15 year old system. I live in the Atlanta area. My house is 2 stories with a finished basement (3 floors). Each floor is approximately 2200 square feet. We have three a/c units. We are replacing the main floor and upper floor units, which are currently 3 ton units and highly inefficient. One furnace is in the attic and the other in the basement.
The main floor has a large family room with 20 foot vaulted ceilings with one side basically one giant window with southern exposure. It is also very open to the second floor with a staircase. The entry foyer On the other side of the house is also 20 feet high and open to the second floor The second floor includes a bonus room above the garage. We have trouble maintaining consistent cooling and heating in all these rooms as well as one bedroom on the opposite side of the house. In addition to high utility bills we have problems with humidity.
The quote is for 2 systems, one for each floor: Trane 3.5 ton xl15i with Trane xv80 variable speed 2 stage gas furnace. The model number are as follows: outdoor unit 4TTX5049E1. Indoor unit 4TXCD061BC3. Furnace TUD2C080B9V4. In addition to the two systems, they proposed running dedicated ducts to the two bedrooms (currently the existing ducts run off main ducts) and increasing them from 6 to 8 inches. He said there is no problem with the number and position of my current returns. I questioned my dealer about the outdoor unit because the Trane website says it Is a nominal 4 ton but he said it was a heavy 3.5 ton (3.75 to be exact). Sounds a little strange to me.
What do you think about the configuration and The models?