Safety Agency Compliance Statements 11
Rack System Instructions
The following or similar rack-mount instructions are
included with the installation instructions:
■ Elevated Operating Ambient – If installed in a closed
or multi-unit rack assembly, the operating ambient
temperature of the rack environment may be greater
than room ambient. Therefore, consideration should
be given to installing the equipment in an
environment compatible with the maximum ambient
temperature (Tma) specified by the manufacturer.
■ Reduced Air Flow – Installation of the equipment in a
rack should be such that the amount of air flow
required for safe operation of the equipment is not
compromised.
■ Mechanical Loading – Mounting of the equipment in
the rack should be such that a hazardous condition is
not achieved due to uneven mechanical loading.
■ Circuit Overloading – Consideration should be given
to the connection of the equipment to the supply
circuit and the effect that overloading of the circuits
might have on overcurrent protection and supply
wiring. Appropriate consideration of equipment
nameplate ratings should be used when addressing
this concern.
■ Reliable Earthing – Reliable earthing of rack-mounted
equipment should be maintained. Particular attention
should be given to supply connections other than
direct connections to the branch circuit (for example,
use of power strips).
Caution – Slide/rail mounted equipment
must not be used as a shelf or workspace.
Rack System Warning
The following warnings apply to Racks and Rack Mounted
systems.
Caution – For safety, equipment should
always be loaded from the bottom up. That is,
install the equipment that will be mounted in
the lowest part of the rack first, then the next
higher systems, etc.
Caution – To prevent the rack from tipping
during equipment installation, the anti-tilt bar
on the rack must be deployed.
Caution – To prevent extreme operating
temperature within the rack insure that
the maximum temperature does not
exceed the product’s ambient rated
temperatures.
Caution – To prevent extreme operating
temperatures due to reduced airflow
consideration should be made to the
amount of air flow that is required for a
safe operation of the equipment.
Caution – Take adequate precautions when
moving a rack or library that contains
rack-installed equipment. The weight of some
rack equipment may have altered the rack or
library center of gravity and could cause an
overbalance/tip condition during a move.
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