Replacing a 20 year old Trane Unit 2.5 ton
I am looking to replace a current 2.5 ton AC, Coil, and Furnace:
My old equipment is as follows:
AC: (Old 10 SEER)
Trane XE 1000
TRANE XE 78/60,000 BTU
The house is a split foyer with most of the living space (1,600 sq feet) on the top floor and about 800 square feet in the basement which is partially underground. I finished the basement my self and had an AC guy come in 15 year ago and put 2 2X2 supply registers in my drop ceiling in the basement. He put only a 6 inch return in the wall of the basement. The basement normally is cool all year around due to most of it being underground. The only problem is heat in the winter. (The hot air rises) I want to upgrade to a 3 ton AC/furnace combination but did not know if my main 12 inch return plus the 6 inch return for the basement will provide enough airflow. One AC guy said he would change out the 6 inch return and replace it with a 10 inch return for that reason.
I live in the Atlanta Area and have many trees shading our house as well which helps in the summer.
I know with my old system I could here a whistling noise coming from the 12 inch return on the upper level.
Could my system handle an upgrade from a 2.5 ton to 3 ton system? I want a good mid grade TRANE/AM Standard or RHEEM/RUUD system with 13 or 14 seer and a basic quality single speed furnace 80% AFUE and a good eval coil. Also wanting a good Aprilaire media filter model.
Can anyone give me any specific part numbers for the brands I am looking at that would fit my requirements? (AC/COIL/GAS FURNACE). This is a basic house but I would like a good system that could last another 20 years if possible.
I like the KISS Principle and am wanting a simple but reliable system.
Thanks In Advance