Chapter 2 Unit Positioning 9
Liebert.CRV Series Air Conditioner User Manual
2 ~ 6 racks (0.6m ~ 5m)
CRV
Figure 2-2 CFD analysis result of one Liebert.CRV unit with 2 ~ 6 racks
3. Placement in the room
1) Width of hot aisle/cold aisle
For good air distribution it is recommended to keep width of the cold aisle as small as possible for single row server
room. Otherwise the cold air discharged by Liebert.CRV unit is being led far from server suction and hot air may
by-passed from hot aisle.
Exceptions where wider cold aisle may be used are: applications with CoolFlex (Cold Aisle Containment) or with two
rows facing each other.
The width of hot aisle/cold aisle is shown in Figure 2-3.
Min. 0.65m
CRV
0.6m ~ 1.2m
Figure 2-3 Width of hot aisle/cold aisle
The CFD analysis result of cold aisle with different width is shown in Figure 2-4.
Not advised approach:
Good approach:
CRV
CRV
< 1.2m
> 1.2m
Note: Please refer to the service area dimensions in Appendix 3.
Figure 2-4 CFD analysis result of cold aisle with different width
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