I have a customer with a very cold liquid line. About a month ago I recovered the refrigerant, removed the orifice from the liquid line that goes into the evaporator coil box. I cleaned it out, did not see any blockage in the orifice, made sure that I installed in the right direction, pulled vacume and recharged the system. Before I had a 50 psi suction and a 190 head. After the repairs I had a 75 suction and a 240 head.
The customer call me back today and states the the liquid line going into the evap is very cold and sweaty. And not cool enough in the house.