Upon arrival Delfield prep table unit was off. The unit was removed outside and disassembled. The old filter drier was removed and new one installed. The capillarity tube was brazed in and checked for a blockage, it is clear. Unit was pressure tested and put on a vacuum. After the test came back good the unit was charged up and reassembled. Operation of the unit was observed unit came down in temp and satisfied. Unit is running as it should.