I've just received an air conditioner (http://www.ajmadison.com/cgi-
bin/ajmadison/AJCQ12DCC.html), which was listed as having a B-type, 15
amp plug. I looked online and it matched up with my outlet, which is
three prong, two running vertically.

The AC arrived, and the plug has three prongs, two running
horizontally.

Is there an adapter I could use? I don't know much about this stuff.

Thanks.