What is the recommended Temperature and Humidity range for data center?

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Data center cooling
DataCenter
What is the recommended Temperature and Humidity range for data center?
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Within our data center, we have the temperature range approximately 67 to 69 degrees with humidity between 45 to 49.

OpenXtra recommends the following environment:
Acceptable Temperature:
70 to 74 degrees F
21 to 23 degrees C

Acceptable Relative Humidity Levels:
45% to 60%

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  • Denny Cherry
    My CoLo uses about the same settings. Although some people have been pushing environmentals to the extreme running without AC, or putting servers in tents to keep the water off with pretty good results.
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  • Whatis23
    We had IBM onsite to evaluate our data center and they basically recommended the same settings. Temp was a little higher, 69-70. We also swapped out a several normal tiles with tiles that have perforated holes to make use of the a/c below the floor. This enabled us to shutdown one of the 5 a/c units.
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  • c007
    Our DataCenter Humidity Level is about 45 to 60
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  • StevenG7
    The important thing isn't the temperature in the room; it's the temperature of the air where it's being sucked into the equipment ("inlet temperature"). The dynamics of the airflow in your data center will dictate what room temperature is required to achieve a given inlet temperature. I like to set the room temperature so no inlet temperature in the warmest location exceeds 80. Raising the room temperature even 5 degrees (say from 70 to 75) makes a large difference in energy savings! As far as humidity, the latest recommendations allow a wider range than the old goal of 45-60% RH. You won't have any problems between 35-75% RH and you'll save a lot of energy by allowing the larger range of humidity.
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  • Meredith Courtemanche
    Expert Robert E. McFarlane recently covered new ASHRAE recommendations as low as 8% RH https://searchdatacenter.techtarget.com/tip/Data-center-humidity-recommendation-falls-dramatically 
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