Remember the little wall units , Magna-Flow 030-wc1 with slant coil and had return grille for door.
Well, yesterday Hurst,TX found one with 1985 serial number tied to 1999 TTR030 Trane condenser,wish I had my camera to post pictures, the condenser took me hour to clean with foaming chemical and the indoor is set-up to be pulled out and cleaned.. He stated renter complained it would not get below 87* inside. As I removed covers and showed him the condenser coils, with 130* discharge temp..WOW that's dirty isn't it,lucky it didn't take out fan or compressor..
He said I have another unit down the street, I am going to check it tonight...LOL He waited until 103* to check anything .