Capillary is the original throttling device in the air conditioning system. Now the most throttling device used in the air conditioning system is electronic expansion valve. Why is it electronic expansion valve? Because electronic expansion valve has many advantages which can not be achieved by capillary, so now air conditioning manufacturers are also changing capillary into electronic expansion valve. However, how to replace the air conditioning capillary tube with the air conditioning electronic expansion valve?
This is a more troublesome thing. When the electronic expansion valve is replaced, the control board also needs to be replaced. If the electronic expansion valve is fixed at a certain opening, the electronic expansion valve of the appropriate size can be directly replaced. If the electronic expansion valve needs to work normally after the replacement of the electronic expansion valve, it is very difficult. In addition to the replacement of the appropriate size of the electronic expansion valve, the main control board also needs to be replaced.