Owners Manual

Table 14. Operating temperature de-rating specification (continued)
Operating temperature de-rating Specifications
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 will help avoid any damages to the IT equipment and/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. Re-mediation of environmental conditions is the responsibility of the
customer.
Table 15. 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 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.
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 16. Gaseous contamination specifications
Gaseous contamination Specifications
Copper Coupon Corrosion <300 Å/month per Class G1 as defined by ANSI/ISA71.04-1985.
Silver Coupon Corrosion <200 Å/month as defined by AHSRAE TC9.9.
NOTE: Maximum corrosive contaminant levels measured at ≤50% relative humidity.
Expanded operating temperature
Table 17. Expanded operating temperature specifications
Expanded operating temperature Specifications
Continuous operation 5°C to 40°C at 5% to 85% RH with 29°C dew point.
18 Technical specifications