Kontron TIGH2U Carrier Grade Server - Manual (Page 51)

Kontron Carrier Grade Server TIGH2U
December 2009 Product Guide, rev.1.2
51
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Server Component Installations and Upgrades—TIGH2U Server
3.5.2 Equipment Rack Precautions
Caution: ANCHOR THE EQUIPMENT RACK — The equipment rack must be anchored to an
unmovable support to prevent it from falling over when one or more servers are
extended in front of it on slide assemblies. The equipment rack must be installed
according to the manufacturer’s instructions. You must also consider the weight of any
other device installed in the rack.
Mains power disconnect — The power cord(s) is considered the mains disconnect for the server
and must be readily accessible when installed. If the individual server power cord(s) will not be
readily accessible for disconnection then you are responsible for installing a power disconnect for the
entire rack unit. This main disconnect must be readily accessible, and it must be labeled as controlling
power to the entire rack, not just to the server(s). To remove all power, two power cords must be
removed.
Grounding the rack installation — To avoid the potential for an electrical shock hazard, for DC
power you must include a third wire safety ground conductor with the rack installation. For DC power
the two studs for chassis enclosure grounding must be used for proper safety grounding. See “C” in
Figure 3 for the location of the ground studs.
With AC power, if the server power cord is plugged into an outlet that is part of the rack, then you
must provide proper grounding for the rack itself. If the server power cord is plugged into a wall
outlet, the safety ground conductor in the power cord provides proper grounding only for the server.
You must provide additional, proper grounding for the rack and other devices installed in it.
AC overcurrent protection — When AC power is used, the server is designed for a line voltage
source with up to 20 amperes of overcurrent protection per cord feed. If the power system for the
equipment rack is installed on a branch circuit with more than 20 amperes of protection, you must
provide supplemental protection for the server. The overall current rating of a server configured with
two power supplies is less than 6 amperes. It is intended that an external Surge Protective Device
(SPD) will be utilized at the AC power service for the equipment.
Caution: Temperature — The operating temperature of the server, when installed in an
equipment rack, must not go below 5° C (41° F) or rise above 35° C (95° F). Extreme
fluctuations in temperature can cause a variety of problems in your server.
Ventilation — The equipment rack must provide sufficient airflow to the front of the server to
maintain proper cooling. It must also include ventilation sufficient to exhaust a maximum of 1200
BTU/hour for a fully loaded server system using the Kontron Carrier Grade Server TIGH2U.
It is important to note that this measurement is the maximum, and a minimum or typical system
could use much less. You may want to calculate the BTU/hour measurement more accurately for your
configuration. An extra 500 BTU/hour over many systems would translate into a large error
calculating air conditioning capacity.