Dell PowerEdge R220 Dell PowerEdge R220 Getting Started Guide - Page 8
Airborne Contaminant Level, Air Filtration
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Environmental Maximum Shock Operating Non-operating Altitude Operating One shock pulse (one pulse each side of the system) of 31 G for 2.6 ms in the operational orientation. Six consecutively executed shock pulses in the positive and negative x, y, and z axes (one pulse on each side of the system) of 71 G for up to 2 ms. Six consecutively executed shock pulses in the positive and negative x, y, and z axes (one pulse on each side of the system) of 32 G faired square wave pulse with velocity change at 270 inches/second (686 centimeters/ second). -16 m to 3048 m (10,000 ft). NOTE: For altitudes above 950 m (3,117 ft), the maximum operating temperature is derated 1°C/300 m (1 ºF/547 ft). Storage Airborne Contaminant Level Class Particulate Contamination -15.2 m to 12,000 m (-50 ft to 39,370 ft) G1 as defined by ISA-S71.04-1985 NOTE: This section defines the limits to help avoid IT equipment damage and/or failure from particulates and gaseous contamination. If it is determined that levels of particulates or gaseous pollution are beyond the limits specified below and are the reason for the damage and/or failures to your equipment, it may be necessary for you to re-mediate the environmental conditions that are causing the damage and/or failures. Re-mediation of environmental conditions will be the responsibility of the customer. Air Filtration NOTE: Applies to data center environments only. Air filtration Data center air filtration as defined by ISO Class 8 per ISO 14644-1 with a 95% upper confidence limit. requirements do not apply to IT equipment designed to be used outside a data center, in NOTE: Air entering the data center must have MERV11 or MERV13 filtration. 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 • Air must be free of corrosive dust. NOTE: Applies to data center and • Residual dust present in the air must have a deliquescent point less non-data center environments. than 60% relative humidity. Gaseous Contamination NOTE: Maximum corrosive contaminant levels measured at ≤50% relative humidity. 8