Congratulations on the new Precept and welcome to the forum.
"I tried plugging in the standard 110 in a garage outlet but the AC powers but is not blowing so my guess is I need to have an electrician install a 30 or 50 amp circuit/outlet. Am I right?"
The short answer is 'Yes'. A standard 110v outlet does not have sufficient power for standard air conditioners.
Your on-board generator (I'm assuming all Precepts have those) should power your air conditioner so that would be the way to cool off yours.
Your Precept probably has a 50amp cord, so the adapter would allow you to plug into sites that only have 30amp outlet.
That's a start. I'm sure you'll hear from others before too long.
Sherm & Terry w/rescue Eydie (min Schnauzer) & Charley (std Poodle)
2015 Jay Flight 27RLS (Nights Camped: 102 '15, 90 '16, 80 '17, 161 '18)
2006 Ford F350 6.0 PSD, 4WD, CC, LB, SRW, Camper pkg, Equal-i-zer, GY Endurance (E)