Well, yes, we've determined that already that the original photo is not quite as compelling as one would wish for, but LCARS' crops (suggesting zooming in more in order to go more abstract on the whole thing) are already showing the potential that's in this boring-at-first-sight air conditioning element. If you leave out the roof, and try to get only details (which Skyclad can't do as easily, what with the camera he has to work with just now, I also understand that!), giving the impression of something large and very "industrial", it may very well get more compelling at once!
So: go for the ladder-idea. Get yourself closer. Pick out details. Go abstract. Let lines work for you, shapes, textures (maybe). (Though upon a closer look, LCARS has just about covered every really interesting corner of this unit already... :scratch: ).