Owners Manual

Table 15. Operating temperature derating specifications
Temperature Specifications
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 and gaseous contamination specifications
The following table defines the limitations that help avoid any equipment damage or failure from particulates and gaseous
contamination. If the levels of particulates or gaseous pollution exceed the specified limitations and result in equipment damage
or failure, you may need to rectify the environmental conditions. Remediation of environmental conditions is the responsibility of
the customer.
Table 16. Particulate contamination specifications
Particulate contamination Specifications
Air filtration
Data center air filtration as defined by ISO Class 8 per ISO
14644-1 with a 95% upper confidence limit.
NOTE: This condition applies only to data center
environments. 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.
NOTE: Air entering the data center must have MERV11 or
MERV13 filtration.
Conductive dust
Air must be free of conductive dust, zinc whiskers, or other
conductive particles.
NOTE: This condition applies to data center and nondata
center environments.
Corrosive dust
● Air must be free of corrosive dust.
● Residual dust present in the air must have a deliquescent
point less than 60% relative humidity.
NOTE: This condition applies to data center and nondata
center environments.
Table 17. Gaseous contamination specifications
Gaseous contamination Specifications
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.
NOTE: Maximum corrosive contaminant levels measured at ≤50% relative humidity.
20 Technical specifications