Picture #1 Is the head Unit mounted on wall above the Kitchen slide and the tube off to the right is the condensation drain. The left tube is the freon and electrical.
Picture #2 is the continuation of the electrical. Goes through cabinet and out back wall.
Picture #3 is the condenser that is mounted to a rack that was mounted to the trailer frame so there would be no vibration to disturb the line set.
I also use a small floor fan to help circulate the air around the trailer. Any other questions, please feel free to ask.