Superdome Servers - I/O Expansion Cabinet Guide, Fifth Edition

Appendix B
Site Requirements
Environmental Requirements
220
Figure B-5 Above Ceiling Ducted Air
Humidity Level
Maintain proper humidity levels. High humidity causes galvanic actions to occur between some dissimilar
metals. This eventually causes a high resistance between connections, leading to equipment failures. High
humidity can also have an adverse affect on some magnetic tapes and paper media.
(typical)
Computer
air discharge
Slab floor
Up-flow A/C
equipment
Cooled supply air
slab above
Roof or floor
Supply air
ductwork
To and from air handling
unit (if used)
Return air
grille
Computer
air intake
Ceiling
Ducted return
air (DRA)
(typical)
Ceiling diffuser
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