Lawrence Berkeley National Laboratory 2017
Humidity Control in Data Centers (March 8, 2017)
Write the humidity strategy around room dew point: set a wide dead band (about 16 °F to 59 °F dew point unless the IT owner agrees a higher lower limit) rather than a narrow RH band.
- Class A1 equipment is known to function up to 90 °F and A4 up to 113 °F, although all classes share the same recommended range.