Environmental
Storage Temperature Limits
–40 °C to 65 °C (–40 °F to 149 °F)
Temperature (Continuous Operation)
Temperature Ranges (for altitude less than 950 m or 3117
ft)
10 °C to 35 °C (50 °F to 95 °F) with no direct sunlight on
the equipment.
Humidity Percentage Range
10% to 80% Relative Humidity with 26 °C (78.8 °F)
maximum dew point.
Relative Humidity
Storage
5% to 95% RH with 33 °C (91 °F) maximum dew point.
Atmosphere must be non-condensing at all times.
Maximum Vibration
Operating
0.26 G
rms
at 5 Hz to 350 Hz (all operation orientations).
Storage
1.87 G
rms
at 10 Hz to 500 Hz for 15 min (all six sides
tested).
Maximum Shock
Operating
One shock pulse in the positive z axis of 31 G for 2.6 ms
in all operational orientations.
Storage
Six consecutively executed shock pulses in the
positive and negative x, y, and z axes (one pulse on
each side of the system) of 71 G for up to 2 ms.
Maximum Altitude
Operating
3048 m (10,000 ft).
Storage
12,000 m (39,370 ft).
Operating Altitude De-rating
Up to 35 °C (95 °F)
Maximum temperature is reduced by 1 °C/300 m (1
°F/547 ft) above 950 m (3,117 ft).
35 °C to 40 °C (95 °F to 104 °F)
Maximum temperature is reduced by 1 °C/175 m (1
°F/319 ft) above 950 m (3,117 ft).
40 °C to 45 °C (104 °F to 113 °F)
Maximum temperature is reduced by 1 °C/125 m (1
°F/228 ft) above 950 m (3,117 ft).
Particulate Contamination
NOTE: This section defines the limits to help avoid IT equipment damage and/or failure from particulates and
gaseous contamination. If it is determined that levels of particulates or gaseous pollution are beyond the limits
specified below and are the reason for the damage and/or failures to your equipment, it may be necessary for you
to re-mediate the environmental conditions that are causing the damage and/or failures. Re-mediation of
environmental conditions will be the responsibility of the customer.
Air Filtration
Data center air filtration as defined by ISO Class 8 per
ISO 14644-1 with a 95% upper confidence limit.
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Summary of Contents for PowerEdge R820
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