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Which air supply mode requires reasonable raised floor height?

A.

Air supply mode using blast caps.

B.

Underfloor air supply mode

C.

Air supply mode using wind pipe

D.

In-row horizontal air supply mode

On the ECC800-Pro WebUI, which of the following is the first-level menu of the NMS Application?

A.

System Settings

B.

Maintenance

C.

Home

D.

Monitoring

In a project 32 NetCol8000-Cs need to be networked for teamwork. Each group consists of four air conditioners. How should the northbound RS485 grouping switches, namely, toggle switches 2 and 3 on the main control module, be set for the last air conditioner in each group?

A.

ON, ON

B.

ON, OFF

C.

OFF, ON

D.

OFF, OFF

Which of the following requires a cooling tower or drycooler?

A.

Direct ventilation air conditioning system.

B.

DX air cooled air conditioner.

C.

CW air cooled air conditioner.

D.

DX water cooled air conditioner.

Which of the following are components of NetCol8000-E220? (Choose three.)

A.

Indirect heat exchange system

B.

Mechanical auxiliary cooling system

C.

Spray system

D.

Electric control system

When the UPS5000-E works in normal mode, in which condition will the UPS automatically transfer to bypass mode?

A.

Mains outage occurs.

B.

The power module is overloaded for a period longer than the specified time.

C.

Power module overtemperature occurs.

D.

Bypass module hardware is faulty.

If the battery charge current limit coefficient of the UPS5000-E is set to 0.1C10, which of the following statements about this parameter is true?

A.

The maximum batten/ charge current is 0.1C10.

B.

The batten/ charge current is always 0.1C10.

C.

The battery float charge current is 0.1C10.

D.

The maximum battery charge current is 0.1C10.

The ECC800-Pro is the core component for FusionModule2000 local management. Southbound components can be using the PoE bus.

A.

True

B.

False

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

A.

Block one of the pipe ports.

B.

Fill the pipe with high-pressure nitrogen.

C.

Quickly remove the pipe plug, and avoid facing people to prevent injury.

D.

To discharge nitrogen from the outdoor unit.

If the UPS5000-E is overloaded in normal mode, it transfers to bypass mode immediately. The bypass supplies power to loads to protect the UPS.

A.

True

B.

False