Been doing battle with an old Kyser Warren Deli Sandwich display cooler (M/N: DS61-6) with C.U. on roof. I did a search on the current compressor being used (Tecumseh AWG5520EXT) and came up with some info I'd like clarified.

According to the M/N, this compressor is under the application of "Air Conditioning +45 deg." Just so happens there are two more applications listed for +45 deg, but designated as "High" temp. Two questions...

What's the difference between +45 high temp and +45 air conditioning applications?

...And, is this compressor not best suited for a medium temp sandwich cooler where box temps would be expected to hover around 35 degrees?