Clearance And Access Guidelines; Floor Loading; Raised Floor Loading - NEC Express5800 1080Xd User Manual

Clearance and Access Guidelines

For normal operation, you'll need to maintain approximately 2 feet (0.6 meters) of open
space in front of and behind the rack. This allows free access to the components in the rack
for operating changes or adjustments.
For service, you'll need approximately 3 feet (1.0 meters) of open space in front of the rack
and 2 feet (0.6 meters) of open space behind the rack. This allows for the removal of any
component that needs to be replaced.
The left and right sides of the server cabinets, when not adjacent to other cabinets, should
have an open space of about 19 inches (0.5 meters).
For normal operation, you'll need to maintain approximately 3 feet (1.0 meters) of open
space above the rack for proper ventilation.

Floor Loading

The computer room floor must be able to support the total weight of the installed computer
system as well as the weight of the individual cabinets as they are moved into position.
Floor loading is usually not an issue in non-raised floor installations, unless this floor is
located in a very old building.
Note:
Series server installation should be verified by an appropriate floor load-
bearing consultant.

Raised Floor Loading

Raised floor loading is a function of the manufacturer's load specification and the
positioning of the equipment relative to the raised floor grid. While NEC cannot assume
responsibility for determining the suitability of a particular raised floor system, it does
provide information for the customer or local agencies to determine installation
requirements.
The following guidelines are recommended:
Because many raised floor systems do not have grid stringers between floor
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stands, the lateral support for the floor stands depends on adjacent panels being
in place. To avoid compromising this type of floor system while gaining under
floor access, remove only one floor panel at a time.
Larger floor grids (bigger panels) are generally rated for lighter loads.
!
Do not install any raised floor system until you have carefully examined its
specifications to verify that it is adequate to support the appropriate
installation.
8 Express5800/1080Xd/1160Xd/1320Xd Site Preparation Guide
Any floor system under consideration for an Express5800/1000
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WARNING