Hardware Acclimation Times; Removing, Installing, Or Storing Replaceable Units - Dell EMC PowerStore T Installation And Service Manual

Hardware acclimation times

Units must acclimate to the operating environment before applying power. This requires the unpackaged system or component to reside in
the operating environment for up to 16 hours in order to thermally stabilize and prevent condensation.
Transit/storage environment
Temperature
Nominal
68-72°F (20-22°C)
Cold
<68°F (20°C)
Cold
<68°F (20°C)
Hot
>72°F (22°C)
Hot
>72°F (22°C)
Unknown
• If there are signs of condensation after the recommended acclimation time has passed, allow an additional eight (8) hours to stabilize.
• Systems and components must not experience changes in temperature and humidity that are likely to cause condensation to form on
or in that system or component. Do not exceed the shipping and storage temperature gradient of 45°F/hr (25°C/hr).

Removing, installing, or storing replaceable units

Use the following precautions when removing, handling, or storing replaceable units:
CAUTION: Some replaceable units have the majority of their weight in the rear of the component. Ensure that the back
end of the replaceable unit is supported while installing or removing it. Dropping a replaceable unit could result in
personal injury or damage to the equipment.
NOTE: For a module that must be installed into a slot in an enclosure, examine the rear connectors on the module for
any damage before attempting its installation.
CAUTION: A sudden jar, drop, or even a moderate vibration can permanently damage some sensitive replaceable units.
• Do not remove a faulted replaceable unit until you have the replacement available.
• When handling replaceable units, avoid electrostatic discharge (ESD) by wearing ESD anti-static gloves or an ESD wristband with a
strap. For additional information, refer to
• Avoid touching any exposed electronic components and circuits on the replaceable unit.
• Never use excessive force to remove or install a replaceable unit. Take time to read the instructions carefully.
• Store a replaceable unit in the antistatic bag and the specially designed shipping container in which you received it. Use the antistatic
bag and special shipping container when you need to return the replaceable unit.
• Replaceable units must acclimate to the operating environment before applying power. This requires the unpackaged component to
reside in the operating environment for up to 16 hours in order to thermally stabilize and prevent condensation. Refer to
acclimation times to ensure the replaceable unit has thermally stabilized to the operating environment.
NOTE: Your storage system is designed to be powered on continuously. Most components are hot swappable; that is,
you can replace or install these components while the storage system is running. However, the system requires that
Operating environment temperature
Humidity
Nominal Nominal 68-72°F (20-22°C)
40-55% RH 40-55% RH
Dry <86°F (30°C)
<30% RH
Damp <86°F (30°C)
≥30% RH
Dry <86°F (30°C)
<30% RH
Humid 30-45% <86°F (30°C)
RH
Humid 45-60% <86°F (30°C)
RH
Humid ≥60% RH <86°F (30°C)
<86°F (30°C)
Avoiding electrostatic discharge (ESD) damage
Acclimation time
0-1 hour
4 hours
4 hours
4 hours
4 hours
8 hours
16 hours
16 hours
.
Safety precautions for handling replaceable units
Hardware
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