Dell EMC PowerEdge R7425, Инструкция по установке и обслуживанию

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Table 31. Configuration based ambient temperature restrictions
Storage configuration Chassis or
hardware
configuration
CPU Thermal Design
Power (TDP)
CPU heat sink Fan type
Ambient
restriction
12 x 3.5 inch
Mid (SAS) and
rear drive 200 W/180 W 1U high performance High performance 30°C
12 x 3.5 inch
Mid (SAS) and
rear drive 120-170 W 1U standard High performance 35°C
24 x 2.5 inch
Mid (SAS) and
rear drive All
1U high performance for
180/200W
1U standard for 120-170W
High performance 35°C
24 x 2.5 inch
All PCIe cards 200 W/180 W 2U Standard 35°C
12 x 3.5 inch
All PCIe cards 200 W/180 W 2U Standard 35°C
8 x 3.5 inch
All PCIe cards 200 W/180 W 2U Standard 35°C
24 NVMe
All PCIe cards 200 W/180 W 2U Standard 35°C
Particulate and gaseous contamination specifications
The following table defines the limitations that help avoid any equipment damage or failure from particulate and gaseous contamination. If
the levels of particulate 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 32. 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: The ISO Class 8 condition applies to data center
environments only. This air filtration requirement does 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.
36 Technical specifications