12 Eaton Power Xpert 9395C UPS Installation and Operation Manual 164000821—Rev 06Table 1. Storage Area ContaminantsContaminant Gas Gas Concentration in ppbvGroup AH2S <3SO2SO2 <10Cl2 <1NOx <50Group BHF <1NH3 <500O3 <233..22..22 EEnnvviirroonnmmeennttaall CCoonnssiiddeerraattiioonnssMake sure that the environment for the 9395 UPS meets the following operating restrictions:The environmental requirements specified below are for the air at the intake ports of the 9395, and are themaximum, not to exceed, ratings.• Use temperature: -0 °C to +40 °C (32 °F to 104 °F).Restriction Always maintain a non-condensing environment• There shall be at least a 1.8° F (1.0° C) difference between the dry bulb temperature and the wet bulbtemperature, at all times, to maintain a non-condensing environment.• The maximum rate of temperature change shall be limited to 3° F over 5 minutes (36° F/hour), based onthe ASHRAE Standard 90.1-2013.Cautions regarding UPS operating environmental conditions:The newer, more energy efficient data center cooling methods (such as air side economization) can createmuch wider ranges of temperature and Relative Humidity (RH) in the UPS room and/or data center.There are two aspects of this increased operating environment that can, if ignored, create issues:• One is the creation of microclimates, which are persistent variations of temperature and/or RH within asingle room; for example one side of the room is always cooler than the other side, no matter what theactual temperature is.• The other aspect is the rate of change of temperature and/or RH, which can occur during transitions withinthe cooling system. Examples: changing the mixture ratio of inside versus outside air, or external changesin the outside air when going from nighttime into day, and back to night.When ignored, either one of these aspects can create an undesirable microclimate at the UPS location. If theenvironment created by this microclimate exceeds the UPS operating specification, the UPS reliability, overtime, will be reduced. These same environmental extremes will also create reliability concerns for any serversthat are exposed to them.Do not expose the UPS for overly aggressive environments ANSI/ISA-71.04-2013 classifications). Refer to forgas concentration limits. If the UPS is used in a more aggressive environment, it can cause reduced product lifeand possibly early failure. If the installation location does not meet the recommended environment, contactEaton service representative for further information.UPS Installation Plan and Unpacking