i was wondering what the superheat at my compressor should be. it is a 404a low temp freezer line up of 25 cases. i am thinking that i need 20 to 25 degrees, but i have been told differant. i had 12 degrees when i arrived. the reason i was called out was that a pipe going to compressor has alot of ice on it. i know that it is no big deal. see it all the time, but i do have a small frost line on the end bell of the compressor. so that is why i checked compressor superheat to see if there was a problem. check cases and all cases have good air flow and holding temp. with my compressor superheat at 12 degrees i thought that was a little low. found 3 cases with real frosty suction line in case. checked superheat in cases and #1 had 2 degrees #2 had 2 degrees #3 had 3 degrees. adjusted case to run at 6 to 7 degrees of superheat. now at my compressor i have about 52 degrees superheat and i am going back today to check the other cases in the line up. does anyone have any thoughts on that or did i do the right sets?