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Planning the installation 8
o
Open area—Minimum of 65 percent open area to provide adequate airflow through any rack front
or rear doors
o Adjustable rack rails are shipped with each enclosure:
— Minimum rail length: 63.5 cm (25 in)
— Maximum rail length: 86.4 cm (34 in)
Rack-free environment requirements
The HP BladeSystem c7000 Enclosure (referred to as the enclosure) can be used in a rack-free environment.
The following conditions must be met when performing a rack-free installation:
• A fully-populated enclosure can weigh up to 217.7 kg (480 lb). The object supporting the enclosure
must be able to withstand this weight.
• The enclosure should be supported by a sturdy, flat surface.
WARNING: To reduce the risk of personal injury or damage to the equipment in a rack-free
environment:
• Never stack the enclosure on top of another enclosure.
• Never place equipment on top of the enclosure.
• Never place the enclosure on a surface that cannot support up to 217.7 kg (480 lb).
Warning, caution, and important messages
WARNING: To reduce the risk of personal injury or damage to equipment, heed all warnings
and cautions throughout the installation instructions.
WARNING: To reduce the risk of personal injury or damage to the equipment, be sure that:
• The leveling jacks are extended to the floor.
• The full weight of the rack rests on the leveling jacks.
• The stabilizing feet are attached to the rack if it is a single-rack installation.
• The racks are coupled together in multiple-rack installations.
• Only one component is extended at a time. A rack may become unstable if more than one
component is extended for any reason.
WARNING: To reduce the risk of personal injury or equipment damage when unloading a rack:
• 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 might
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.