HP Blade bc1000 Setup And Installation Manual page 22

Planning the Installation
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WARNING: To reduce the risk of personal injury or equipment damage,
AT LEAST two people are needed to safely unload the rack from the pallet.
An empty 42U rack can weigh as much as 115 kg (253 lb), can stand
more than 2.1 m (7 ft) tall, and may become unstable when being moved
on its casters.
Never stand in front of the rack when it is rolling down the ramp from the
pallet; always handle the rack from both sides.
WARNING: When installing the enclosure in a Telco rack, be sure that
the rack frame is adequately secured to the top and bottom of the building
structure.
CAUTION: When using a Compaq branded 7000 Series rack, you must
install the high airflow rack door insert [P/N 327281-B21 (for 42U rack)
and P/N 157847-B21 (for 22U rack)] to provide proper front-to-back
airflow and cooling and to prevent damage to the equipment.
CAUTION: If an HP or third-party rack is used, observe the following
additional requirements to ensure adequate airflow and to prevent
damage to the equipment:
• Front and rear doors: If the 42U rack includes closing front and rear doors,
you must allow 5,350 sq cm (830 square inches) of holes evenly
distributed from top to bottom to permit adequate airflow (equivalent to the
required 64 percent open area for ventilation).
• Side: The clearance between the installed rack component and the side
panels of the rack must be a minimum of 7 cm (2.75 inches).
CAUTION: Always use blanking panels to fill all remaining empty front
panel U-spaces in the rack. This arrangement ensures proper airflow.
Using a rack without blanking panels results in improper cooling that can
lead to thermal damage.
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