DR4300 Owners Manual
Particulate and gaseous contamination specifications
28
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 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. Re-mediation of
environmental conditions is the responsibility of the customer.
Table 23. Particulate contamination specifications
Air filtration specification: Data center air filtration as defined by ISO Class 8 per ISO 14644-1 shpuld have 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 specification: Air must be free of conductive dust, zinc
whiskers, or other conductive particles. Note: This condition applies to data center and non-data center environments. Corrosive
dust specification: 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 non-data center environments.
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
non-data 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
non-data center environments.
Summary of Contents for DR4300e
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