New Summer New AC Problem
 

After suffering with poor AC and no center vents last summer. I recently had the AC compressor, expansion valve, dryer, and all vac pods replaced on my 82SD. Before doing all this, in the winter my CCU seemed to control temperature OK in EC mode, but I never had center vents.

After replacing everything, now air blows ice cold, with full fan speed, and I have center vents only with the temperature wheel at minimum. When I move the wheel off of minimum, center vents stop, and I start getting heat. I don't mind the cold air , but would like for the system to work the way it should.

Could it be the CCU, temperature regulator, or something else?