During the installation of an air conditioner system, which of the following statements are correct about the draining impurities from the refrigerant pipe?

Regarding the integrated UPS5000-E120K-HASBS statements, which of the following is incorrect?

When the outdoor unit of a Huawei air-cooled air conditioner is installed horizontally, what is the minimum distance between the outdoor unit and the wall or obstacle?

UPS5000-E can maintain high efficiency in a wide load range and effectively reduce losses. Among them, the efficiency can reach 96% at 40% load, and the efficiency can reach 95% at 20% load. What is the efficiency in ECO mode?

The AI/DI port on the access control actuator supports to connect the ().