Originally Posted by Boxster1971
Looked like anodized aluminum to me. That would help make the aluminum more durable. ...
Yes it could be, but I wasn't going to lead the witness. I want to have ARV offer the confirmation in their own words, if that's true.
I've learned that "looked like" and "should be" are right up there with "assume" where air conditioners are concerned. Most owners never crack open their units, and so some manufacturers do tend to hide sins inside of them. We replaced our stick-and-brick a/c system last year. I was amazed to find that, while the main visible lines were indeed copper and the heat exchanger was indeed aluminum, the portions of the lines concealed inside the aluminum fins... THOSE portions were galvanized steel. So of course they rotted out in short order, costing us many thousands of dollars for a replacement unit.
Last year, we opened up our old lumbering deafening Dometic roof unit to install the EasyStart. I was pleased to see correct configuration of metals. The red arrow in this photo is pointing toward the EasyStart, but if you look near my husband's left elbow, you'll see the beginnings of the copper that runs all the way through the aluminum. No sins were visible, no corrosion was visible. Now, if only the danged thing weren't so loud...