NOTE: Applies to data center environments
only. Air filtration requirements do not apply
to IT equipment designed to be used outside a
data center, in environments such as an office
or factory floor.
Conductive dust
NOTE: Applies to data center and non-data
center environments.
Air must be free of conductive dust, zinc whiskers,
or other conductive particles.
Corrosive Dust
NOTE: Applies to data center and non-data
center environments.
• Air must be free of corrosive dust.
• Residual dust present in the air must have a
deliquescent point less than 60 percent relative
humidity.
Gaseous contamination
NOTE: Maximum corrosive contaminant levels measured at ≤50 percent relative humidity.
Copper coupon corrosion rate
<300 Å/month per Class G1 as defined by ANSI/
ISA71.04-1985
Silver coupon corrosion rate
<200 Å/month as defined by AHSRAE TC9.9.
Expanded Operating Temperature
NOTE: When operating in the expanded temperature range, system performance may be impacted.
NOTE: When operating in the expanded temperature range, ambient temperature warnings may be
reported on the LCD and in the System Event Log.
< 10 percent of annual operating hours
5°C to 40°C at 5 percent to 85 percent RH with
26°C dew point.
NOTE: Outside the standard operating
temperature (10°C to 35°C), the system can
operate down to 5°C or up to 40°C for a
maximum of 10 percent of its annual
operating hours.
For temperatures between 35°C and 40°C, de-rate
maximum allowable dry bulb temperature by 1°C
per 175 m above 950 m (1°F per 319 ft).
< 1 percent of annual operating hours
–5°C to 45°C at 5 percent to 90 percent (RH) with
26°C dew point.
NOTE: Outside the standard operating
temperature (10°C to 35°C), the system can
operate down to –5°C or up to 45°C for a
maximum of 1 percent of its annual operating
hours.
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