The capillary assembly includes a capillary tube and a one-way valve. Among them, the one-way valve is generally used in the outdoor unit of the wall-mounted split air conditioner. It consists of an auxiliary capillary tube and a one-way valve. The one-way valve components of different models of the wall-mounted split air conditioner are similar. There is an arrow on the one-way valve, which indicates that the air flow can only flow in the direction of the arrow, and it will stop in the reverse direction and can only pass through the auxiliary capillary. The one-way valve assembly is installed at the bottom and rear of the outdoor unit. It is usually covered by a black shock-absorbing block, and the asphalt is used to silence the sound.
The one-way valve assembly is only used in the heating process of the wall-mounted split air conditioner, and the one-way valve assembly does not work in the refrigeration. The role of the check valve assembly during heating is to increase the flow resistance of the refrigerant, reduce the flow speed of the refrigerant, so that the refrigerant is fully evaporated in the outdoor unit, and the refrigerant gas discharged from the compressor becomes a refrigerant liquid , Improve the heating effect of wall-mounted split air conditioner.