Question 86
When the Huawei air-cooled air-conditioning compressor is turned on for the first time, the crankcase heating belt needs to be warmed up for more than ( ) hours.
Question 87
When the UPS5000-E is equipped with an IP21 component, the ejector component can also be installed.
Question 88
Which are the high reliability features of NetCol5000-C?
Question 89
If the input phase sequence of integrated UPS is incorrect, the UPS cannot work properly.
Question 90
In NetEco "Video" function, you can enter ( ) and other operations (Multiple choice)