How to solve the serious leakage problem of the chiller refrigerant?

The evaporator will have leaks. The main reason is that the welding technology is not good. Before the copper tube is burnt red (the temperature does not reach 600℃～700℃), the welding rod is placed at the welding port, and the copper tube and the solder are not fused together. , Resulting in welding, slag, and not smooth, and leakage points will occur after a long time of use.

1. After identifying the missing points, mark them;

2. If there is still refrigerant in the refrigeration system, the refrigerant must be stored first;

3. Use two 8-inch or 10-inch wrenches to remove the connecting lock nut of the indoor unit, and remove the electrical box on the right side of the indoor unit;

4. Remove the fixed pipes and splints on the rear side of the evaporator, and remove the left and right positioning screws of the indoor evaporator;

5. Lift the pipe from the rear side of the indoor unit with the left hand to move the evaporator forward. After pulling out the evaporator 5cm with your right hand, rotate the evaporator 90 degrees with both hands and pull it out along the pipe (note the operation with both hands and do not knock the fins down).

After removing the evaporator, put it in a flat and clean place, wipe off the oil traces of the leak with a dry cloth, solder the leak with silver solder, press check to confirm that there is no leakage, install the evaporator in the reverse order of disassembly machine. Of course, there are many possibilities for refrigerant leakage, not only the evaporator has a leak, it needs to be checked step by step