Rack System Instructions; Other Warnings And Cautions - Lenovo ThinkSystem D4390 Hardware Installation And Maintenance Manual

2.1.4 Rack System Instructions

The following are the rack-mount installation instructions:
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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 temperature. Therefore,
consideration should be given to installing the equipment in an environment compatible with the maximum
ambient temperature 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 power
supply and the over-current protection should be implemented. Appropriate consideration of equipment
power 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 power supply connections other than direct connections to the branch circuit (for example,
use of power strips).
CAUTION: Rack mounted equipment must not be used as a shelf or workspace.
Do not add weight to rack mounted equipment.
The following warnings apply to Racks and Rack Mounted systems:
CAUTION: For safety, equipment should always be loaded from the bottom up. Install the equipment that will be
mounted in the lowest space of the rack first and then the next higher space, etc.
CAUTION: To prevent the rack from tipping during equipment installation, the anti-tilt bar on the rack must be
deployed.

2.1.5 Other warnings and cautions

WARNING:
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