How could they get the proper evaporation from installing them so close, not to mention the back-flow from the hot air hitting the roof and recirculating through the condensers? Just an interest question.
uhhhhhh. It's funny about golf clubs. They want the units out of the way. I had a similar situation in a parapit on a roof at a golf club in the midwest. The head pressure was soo bad on the units, someone rigged a sprinkler up there to keep em cooled off. Amazing, but not surprising.
Sound installation practices is the key to success. Equipment is only as good as the person installing it.