IBM 7226 Manual page 23

Consideration should be given to the electrical power connection to the rack. Ensure that the rack electrical power circuits are
not overloaded so the wiring and over-current protection is not compromised. Refer to the rating labels that are located on the
equipment installed in the rack to determine the total power requirement for the supply circuit.
Do not install this unit in a rack where the internal rack ambient temperatures exceed 40 degrees Celsius.
Do not install this unit in a rack where the air flow is compromised.
To ensure proper cooling, place the unit so that the cooling fan exits at the rear of the unit and the air inlet holes at the front of
the unit have sufficient clearance to ensure airflow.
DANGER
An electrical outlet that is not correctly wired could place hazardous voltage on the metal parts of the system or the devices
that attach to the system. It is the responsibility of the customer to ensure that the outlet is correctly wired and grounded to
prevent an electrical shock. (D004)
DANGER
Observe the following precautions when working on or around your IT rack system:
Heavy equipment—personal injury or equipment damage might result if mishandled.
Always lower the leveling pads on the rack cabinet.
Always install stabilizer brackets on the rack cabinet.
To avoid hazardous conditions due to uneven mechanical loading, always install the heaviest devices in the bottom of
the rack cabinet. Always install servers and optional devices starting from the bottom of the rack cabinet.
Rack-mounted devices are not to be used as shelves or workspaces. Do not place objects on top of rack-mounted
devices.
Stability hazard:
The rack may tip over causing serious personal injury.
Before extending the rack to the installation position, read the installation instructions.
Do not put any load on the slide-rail mounted equipment in the installation position.
Do not leave the slide-rail mounted equipment in the installation position.
Each rack cabinet might have more than one power cord. Be sure to disconnect all power cords in the rack cabinet when
directed to disconnect power during servicing.
Connect all devices installed in a rack cabinet to power devices installed in the same rack cabinet. Do not plug a power
cord from a device installed in one rack cabinet into a power device installed in a different rack cabinet.
An electrical outlet that is not correctly wired could place hazardous voltage on the metal parts of the system or the
devices that attach to the system. It is the responsibility of the customer to ensure that the outlet is correctly wired and
grounded to prevent an electrical shock.
(R001 part 1 of 2)
CAUTION:
Do not install a unit in a rack where the internal rack ambient temperatures will exceed the manufacturer's
recommended ambient temperature for all your rack-mounted devices.
Do not install a unit in a rack where the air flow is compromised. Ensure that air flow is not blocked or reduced on any
side, front, or back of a unit used for air flow through the unit.
Consideration should be given to the connection of the equipment to the supply circuit so that overloading of the circuits
does not compromise the supply wiring or overcurrent protection. To provide the correct power connection to a rack,
refer to the rating labels located on the equipment in the rack to determine the total power requirement of the supply
circuit.
(For sliding drawers): Do not pull out or install any drawer or feature if the rack stabilizer brackets are not attached to the
rack. Do not pull out more than one drawer at a time. The rack might become unstable if you pull out more than one
drawer at a time.
12 IBM 7226 Model 1U3 Storage Device Enclosure