ok, lets look at another situation if you don't mind. Several units I work on do not have any charts. I work for a property management company. Apts. and duplex. Most units are 2 ton to 2.5 ton. Miss matched evap coil and orifices etc. I come across a number 48 orifice in a coil that was labled for .60 on a 2 ton goodman condensor. I changed it and got much better results. Again my boss came behind me and put his hand on the liquid line and said the line was too hot.. and wasn't subcooling. Well here we go again..It was around a hundred something I don't remember exact but was about 12degrees less than the saturation temp for the high side pressure. So I figure I'm getting some subcooling. He told me that the liguid line should always be at least or below human temperature. You know 98.6. They hired this guy because he is supposed to have all kinds of degrees. And I thought I might learn a thing or two. But this is starting to worry me. Unless there is some truth to this..?????