1, the air conditioning indoor unit and outdoor unit connection, this is also need to use materials to connect. Most of the materials commonly used in the air conditioning indoor unit and outdoor unit connection is the use of copper and aluminum tubes. At present, the most common air conditioning connection material is also the air conditioning copper pipe. Because the refrigerant is ultimately to absorb heat in the evaporator, and it is still in the condenser to release heat, so the outside of the air conditioning copper pipe is also connected to the heat sink, so that you can connect the tube through the refrigerant. Therefore, this refrigerant with the quality of copper pipe is also very critical, it will directly affect the cooling effect of air conditioning.
2, relatively speaking, like the high pressure resistance of copper tube, there is also a corrosion resistance function, so that its service life will be relatively longer than the aluminum tube; refrigeration copper tube thermal conductivity will be compared to the aluminum tube to be much better, welding performance, mechanical strength is also far better than aluminum, of course, air conditioning copper tube price will be more expensive than the aluminum tube. Many consumers in the choice of time in order to save money or cheap, they will refrigerators, air conditioners copper pipe to thin or directly change the use of aluminum tubes, which is relatively speaking, the price is also lower, but of course the performance is much worse than the use of copper tubes in the refrigeration effect is certainly not so good.
