54 Sun Fire X4170, X4270, and X4275 Servers Installation Guide • December 2009
Caution – Elevated Operating Ambient Temperature: If the server is installed in a
closed or multi-unit rack assembly, the operating ambient temperature of the rack
environment might be greater than room ambient temperature. Therefore,
consideration should be given to installing the equipment in an environment
compatible with the maximum ambient temperature (Tma) specified for the server.
For server environmental requirements, see “Environmental Requirements” on
page 15.
Caution – 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.
Caution – Mechanical Loading: Mounting of the equipment in the rack should be
such that a hazardous condition is not achieved due to uneven mechanical loading.
Caution – 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 over-current protection and supply wiring. Appropriate
consideration of equipment nameplate power ratings should be used when
addressing this concern.
Caution – Reliable Earthing: Reliable earthing of rackmounted 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).
Disassembling Slide-Rails
Complete one of the following procedures before installation:
■ “Disassemble Bolt-On Slide-Rails” on page 55
■ “Disassemble Tool-less Slide-Rails” on page 56
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