1. The distance between the branch pipe and its front and rear bends is too close: If the distance between the branch pipe and its front and rear bends is too close, it will also affect the normal diversion of the refrigerant flowing through here, and affect the cooling effect of the indoor unit downstream. Therefore, it is necessary to ensure that the distance between the branch pipe and its front and rear bends is more than 500mm. Similarly, the distance between the two elbows (bending points) must also be guaranteed to be more than 500mm.
The spacing between the branch pipes should be more than 1000mm; otherwise, it is easy to cause refrigerant deviation and refrigerant flow noise.
2. The direction of the pipeline is too complicated: On the first floor of the villa, the direction of the branch of the main pipe coming out of the pipe well is too complicated. Some pipes even go to one end and then turn back. This wastes materials on the one hand, and more importantly, increases the resistance of the pipeline and reduces the cooling capacity of the indoor unit; some pipes are laid in layers, which is not conducive to the normal oil return of the system, which will leave hidden dangers for the normal operation of the host. Regarding the design and laying of pipelines, please follow the principle of "pipeline length as short as possible, use as few elbows as possible", otherwise it will affect the normal operation of the unit in the future, and even damage the unit, so changes must be made.
3. The outlet pipe does not retain a certain straight section: We often find this problem at the construction site. The pipeline branched out of the branch pipe does not retain a certain straight pipe section, but bends immediately after branching, which will have a great impact on the indoor unit after the branch pipe.