To clean and test the Col Wall evaporator, proceed as follows:
1- With a blowtorch, disconnect the suction tube and capillary from the evaporator.
2- Solder two copper tips of approximately 150 mm at the inlet and outlet of the evaporator, respectively.
3- Clean the evaporator by passing Nitrogen (N2) through the pipe.
4 - Seal one end with a torch.
5- Pressurize the evaporator with 250 PSI of Nitrogen (N2), then seal the other end.
NOTE: In roll-type evaporators, 100 PSI of Nitrogen should not be exceeded.
6- Perform leak testing on welds performed.
7- Keep the evaporator pressurized for 24 hours.
8 - Check the pressure drop.
