How to replace the capillary tube

A: double door double temperature refrigerator capillary tube is installed in the insulation inside, repair, it is difficult to replace. Single-door single-temperature refrigerator capillary tube is often installed through the return pipe, the replacement steps are as follows: (1) use welding to burn open the compressor and condenser, compressor and return pipe connector, as well as filter drier and capillary tube connector. (2) Disassemble the condenser. (3) Straighten the return air tube and capillary tube, and disassemble the evaporator. (4) Use electric welding to burn open the connectors of the return air tube and capillary tube with the evaporator respectively. (5) The return air tube and capillary tube are more difficult to disassemble, you must burn through the two diagonal holes welding point, pull out the capillary tube. Where possible, the capillary tube is replaced with the return air tube. (6) Select the appropriate length of ! *00 copper tube, flared at both ends, from both ends of the appropriate length (take the same position as the old air return tube) at the two oblique holes. So that the capillary tube from a slant hole through, another slant hole through. Then use silver or copper welding to seal the slant hole. And clean and dry processing. (7) from the slant hole distance is shorter back to the gas pipe end and capillary tube end were connected with the evaporator, and with silver welding or copper welding, sealing requirements, nitrogen leakage detection, to determine the phenomenon of no leakage is qualified. (8) install the evaporator. (9) Installation of condenser. (10) welding filter drier and capillary tube, compressor and condenser, compression and return air pipe of the three joints. And the refrigeration system is filled with nitrogen leak detection, to determine the absence of leakage phenomenon for the replacement is complete.