I just had a Trane xv95 installed; it replaced "half" of my Carrier Weathermaker system. The outdoor AC unit and coils are still good, so they remained. Coils are from the CD5A series.
From reading this site, I understand that the AC unit has to have a TXV if you are going to slow the blower speed, to dehumidify for example. I'd like to take advantage of the Trane comfort-r capability. I checked the control board and the installer did not install the jumper between Y and O, and has the #5 and #6 dip switches set for no comfort-r. Does my existing AC have a TXV installed (I've looked and don't see anything resembling it)? If not (and I'm thinking not, based on my amateur set of eyes and the installer's setup), would this be an easy mod?