Then it goes to the capillary tube and enters the evaporator (indoor unit). After the refrigerant reaches the evaporator from the capillary tube, the space suddenly increases and the pressure decreases. The liquid refrigerant will vaporize and become a gaseous low-temperature refrigerant, thereby absorbing a large amount of Heat, the evaporator will become cold, the fan of the indoor unit blows the indoor air through the evaporator, so the indoor unit blows out cold wind; the water vapor in the air will condense into water droplets when it meets the cold evaporator , Flow out along the water pipe, which is why the wall-mounted split air conditioner will leak water.
