System Description; L1/L2 Linkage (Icooling Function) - Huawei FusionModule2000 Product Description

FusionModule2000 Smart Modular Data Center
Product Description (380 V)

3.3.1 System Description

The cooling system uses air cooled in-row precision air conditioners and an aisle containment
for cooling. The air cooled in-row precision air conditioners and equipment cabinets form an
aisle containment as shown in Figure 3-47 to separate hot air from cold air.
The air cooled in-row precision air conditioner works as follows: After the unit starts, the
low-pressure refrigerant vapor in the refrigerating system is suctioned into the compressor,
compressed into high-pressure vapor, and discharged to the condenser. The outdoor air drawn
in by the axial flow fan flows through the condenser and carries away the heat emitted from
the refrigerant so that the high-pressure refrigerant vapor condenses into high-pressure liquid.
The high-pressure liquid passes through the filter and flow regulating mechanism and then is
ejected to the evaporator. Then the liquid vaporizes at low pressure and absorbs ambient heat.
The cross-flow fan draws air into the fins in the evaporator to exchange heat and discharges
cooled air to the cold aisle. The indoor air flows cyclically to decrease the temperature.
In-row air conditioners are close to heat sources, which shortens the air supply distance,
reduces airflow pressure loss and cold air loss, and maximizes the use of cooling capacity.
Figure 3-47 Aisle containment scenario
(1) Equipment
This system adopts two models of NetCol5000-A air cooled in-row precision air conditioners,
that is, NetCol5000-A 25 kW (300 mm wide) and NetCol5000-A 25 kW & 35 kW (600 mm
wide).

3.3.2 L1/L2 Linkage (iCooling Function)

Features

Issue 04 (2017-06-30)
Energy-saving: When the requirements of cooling capacity are determined, an optimized
operation mode for multiple air conditioners can be adopted to minimize the total
cooling power consumption.
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(2) Air conditioners
3 System Architecture
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