Dell EMC VMAX 250F Site Planning Manual

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Dell EMC VMAX 250F Site Planning Manual Manual pdf 31 page image

Table 14 Sound power and sound pressure levels, A-weighted, VMAX 450F, VMAX 850F, VMAX950F (continued)b. Measured at the four bystander positions per ISO7779Hardware acclimation timesSystems and components must acclimate to the operating environment beforeapplying power. This requires the unpackaged system or component to reside in theoperating environment for up to 16 hours in order to thermally stabilize and preventcondensation.Table 15 Hardware acclimation times (systems and components)If the last 24 hours of theTRANSIT/STORAGEenvironment was this:…and the OPERATINGenvironment is this:…then let the systemor componentacclimate in the newenvironment this manyhours:Temperature HumidityNominal68-72°F(20-22°C)Nominal40-55% RHNominal 68-72°F (20-22°C)40-55% RH0-1 hourCold<68°F (20°C)Dry<30% RH<86°F (30°C) 4 hoursCold<68°F (20°C)Damp≥30% RH<86°F (30°C) 4 hoursHot>72°F (22°C)Dry<30% RH<86°F (30°C) 4 hoursHot>72°F (22°C)Humid30-45% RH<86°F (30°C) 4 hoursHumid45-60% RH<86°F (30°C) 8 hoursHumid≥60% RH<86°F (30°C) 16 hoursUnknown <86°F (30°C) 16 hoursNOTICEl If there are signs of condensation after the recommended acclimation time haspassed, allow an additional eight (8) hours to stabilize.l Systems and components must not experience changes in temperature andhumidity that are likely to cause condensation to form on or in that system orcomponent. Do not exceed the shipping and storage temperature gradient of45°F/hr (25°C/hr).SpecificationsHardware acclimation times 31