There are (I think) 4 to 6 different A/C units that PC uses: 13.5k and 15k and maybe an 11k. Then you can get it with / without heat strips or with / without heat pump. So I don't think anyone can say what it is from that picture. You would have to go up on the roof, pull the cover and get the model number.
It might be listed in the owners paperwork packet if that is still with the coach.
Looks just like our 15k heat pump from your picture. And all that means is that the interior panels might ALL be the same on same generation units. The only thing different will be in the compressor box on the roof.
