Dell PowerVault TL4000 - Manual (Page 17)

Rack safety
The following general safety information must be used for all rack mounted
devices.
DANGER
v Always lower the leveling pads on the rack cabinet.
v Always install stabilizer brackets on the rack cabinet.
v To avoid hazardous conditions because of 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.
v Rack mounted devices are not to be used as a shelf or workspace. Do
not place any object on top of rack mounted devices.
v Each rack cabinet might have more than one power cord. Be sure to
disconnect all power cords in the rack cabinet before you service any
device in the rack cabinet.
v Connect all devices that are installed in a rack cabinet to power
devices installed in the same rack cabinet. Do not plug a power cord
from a device that is installed in one rack cabinet into a power device
that is installed in a different rack cabinet.
v An electrical outlet that is not correctly wired might 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.
CAUTION:
v Do not install a unit in a rack where the internal rack ambient
temperatures might exceed the manufacturer's recommended ambient
temperature for all your rack mounted devices.
v 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 that is used for air flow through the unit.
v Consideration must 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 on the
equipment in the rack to determine the total power requirement of the
supply circuit.
v (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.
v (For fixed drawers) This drawer is a fixed drawer and must not be
moved for servicing unless specified by the manufacturer. Attempting
to move the drawer partially or out of the rack might cause the rack
to become unstable or cause the drawer to fall out of the rack.
(R001)
Safety and environmental notices xv