It doesn't matter if the copper tube of air conditioner bends 90 degrees. However, it is limited to the new air-conditioning copper tube, which can be directly bent at 90 degrees with a pipe bender. It is difficult to realize the old copper tube after being used for a period of time, because the flexibility becomes worse after being used for a period of time, and it is easy to appear flat. Moreover, it is not recommended to bend directly by hand, because the right-angle bending by hand is completely different from bending with tools such as pipe bender.

Air conditioning is air conditioning. Refers to the equipment that manually adjusts and controls the temperature, humidity, flow rate and other parameters of ambient air in buildings or structures.

Generally, it includes cold source/heat source equipment, cold and hot medium transmission and distribution system, terminal device and other auxiliary equipment. It mainly includes refrigeration host, water pump, fan and pipeline system. The terminal equipment is responsible for carefully handling the air state by using the cold heat from transmission and distribution, so that the air parameters of the target environment can meet the requirements. There are many kinds of household air conditioners, among which the common ones are wall-mounted air conditioners, wall-mounted air conditioners, window air conditioners and ceiling air conditioners. But these products have their own characteristics and prices, and they should be selected according to their own needs. As for the cold and warm wall-mounted air conditioners, we should pay attention to the choice of air conditioners with heating capacity greater than cooling capacity to ensure the heating effect. If there is electric auxiliary heating function, it can ensure heating in ultra-low temperature environment.