Environmental
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% relative
humidity.
Gaseous Contamination
NOTE: Maximum corrosive contaminant levels measured at ≤50% 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% of annual operating hours 5 °C to 40 °C at 5% to 85% 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% 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% of annual operating hours –5 °C to 45 °C at 5% to 90% 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% of its annual
operating hours.
For temperatures between 40 °C and 45 °C, de-rate
maximum allowable dry bulb temperature by 1 °C per 125
m above 950 m (1 °F per 228 ft).
Expanded Operating Temperature Restrictions
• Do not perform a cold startup below 5 °C.
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