Which of the following fan control modes are supported by NetCo18000-C series room-level chilled water intelligent cooling products? (Multiple choice)

• A.Supply air control
• B.Return air control
• C.Pressure Control
• D.Mixed air control
• E.Differential pressure control

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When there are multiple computer rooms and they are monitored at the same time, the hierarchical deployment of the monitoring system may occur.

• A.FALSE
• B.TRUE

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If the customer's load cannot be powered off, what should be paid attention when closing the maintenance bypass switch? (Multiple choice)

• A.Execute EPO before closing the maintenance switch
• B.Close the maintenance switch first and then execute the EPO
• C.Turn off the inverter, put the UPS in bypass mode and then close the wake bypass switch
• D.The maintenance bypass switch can also be closed in inverter power supply mode

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The function of the check valve in the NetCol5000-A air conditioning system is ( ).

• A.Filtration of impurities in the system
• B.Effective control of gas or liquid backflow
• C.Controlling refrigerant flow
• D.Protect the water pump

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The output power factor of UPS5000-A-400/500K is ( ), which is suitable for new IT loads and significantly improves the load capacity of the system.

• A.0.9
• B.0.8
• C.1
• D.0.95

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