what causes the orfice tube line to freeze up on the ac on 2002 Dodge Ram 1500

has a new ac compressor and liquid line. the liquid line will freeze up quick. what could cause that/

Asked by for the 2002 Dodge Ram 1500
Pressure readings high and low? Was system flushed? Proper vacuum pulled on system? How much and what type of oil added? Is it coolling at all? Was old compressor trashed, locked up? Any trash in system that has entered new orfice tube/line? New accumulator? Blower fan working? Really need to see it and check it to give an answer!