Breaker for second A/C

[Glenn the fifth]

Hello all, one more question before I begin my front A/C install Saturday. I picked up the unit last night and brought it home (Coleman 15K Mach 8 low profile). I have a junction box in the ceiling just forward of the bedroom vent. I took the cover off last night and saw the taped up power wires in the box. I then went and look at the breaker panel to see if there was a separate breaker for the second A/C. It appears there are 6 "ganged" breakers (not counting the main 50 amp ganged breaker). The one on the far left while looking at it is labeled "AC". All of the other breakers have labels for other things around the coach. I am assuming that both A/Cs will run off of that far left breaker? I did not get my meter out to check power yet (but I will before I do anything). I will actually unplug the trailer and open the battery breaker before I do anything Saturday. Just thought someone might know something about this. -Glenn