Environmental specifications40 °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 contaminationNOTE: This section defines the limits to help avoid IT equipment damage and/or failure fromparticulates and gaseous contamination. If it is determined that levels of particulates or gaseouspollution are beyond the limits specified below and are the reason for the damage and/or failuresto your equipment, it may be necessary for you to re-mediate the environmental conditions thatare causing the damage and/or failures. Re-mediation of environmental conditions will be theresponsibility of the customer.Air filtrationNOTE: Applies to data center environmentsonly. Air filtration requirements do notapply to IT equipment designed to be usedoutside a data center, in environments suchas an office or factory floor.Data center air filtration as defined by ISO Class 8per ISO 14644-1 with a 95% upper confidencelimit.NOTE: Air entering the data center musthave MERV11 or MERV13 filtration.Conductive dustNOTE: Applies to data center and non-datacenter environments.Air must be free of conductive dust, zinc whiskers,or other conductive particles.Corrosive dustNOTE: Applies to data center and non-datacenter environments.• Air must be free of corrosive dust.• Residual dust present in the air must have adeliquescent point less than 60% relativehumidity.Gaseous contaminationNOTE: Maximum corrosive contaminant levels measured at ≤50% relative humidity.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.Expanded operating temperatureNOTE: When operating in the expanded temperature range, system performance may be impacted.NOTE: When operating in the expanded temperature range, ambient temperature warnings may bereported on the LCD and in the System Event Log.Continuous operation 5°C to 40°C at 5% to 85% RH with 29°C dew point.NOTE: Outside the standard operatingtemperature (10°C to 35°C), the system canoperate continuously down to 5°C or as highas 40°C.178
