The new Carrier Low Profile heat pump roof AC looks good. It's only 7" tall and has an aerodynamic profile. No longer a wart! (We'll call it a sport.) And the squirrel cage fan is very quiet. For those of you who like "plug 'n play" and more room in the bay!
I thought I read Carrier was out of the RV A/C business. Did you find NOS or where the previous posts on Carrier incorrect?
The control board is getting hard to find now for Carrier, Dinosaur is supposed to start making a replacement but I haven't seen one yet I think they stopped production in 2010
good luck