HP 10622 Best practices for HP 10000 Series and HP 10000 G2 Series Racks - Page 20

Data center temperature and humidity The data center temperature and humidity should meet the guidelines listed in Table 6. Table 6. Temperature and humidity specifications Type Temperature Humidity Operating 50 to 90° F (10 to 35° C) at sea level 10 to 90% non-condensing Non-operating -22 to 140° F (-30 to 60° C) 5 to 90% non-condensing NOTE Altitude derating of 1o C for every 300 meters above sea level to a maximum of 3,000 meters (1.8 o F per every 1,000 feet up to a maximum of 10,000 feet). No direct sustained sunlight. Third-party thermal considerations CAUTION If a third-party rack is used, observe the following additional requirements to ensure adequate airflow and to prevent damage to the equipment: • Front and rear doors: If the 42U server rack includes closing front and rear doors, allow 830 square inches (5,350 sq cm) of hole evenly distributed from top to bottom to permit adequate airflow (equivalent to the required 64 percent open area for ventilation). Be sure that the option equipment does not impede airflow to the rackmountable servers or increase the internal rack temperature beyond the specified maximum rating. • Side: The clearance between the installed rack component and the side panels of the rack must be a minimum of 2.75 inches (7 cm). CAUTION Always use blanking or filler panels to fill all remaining empty front panel U-spaces in the rack. This arrangement ensures proper airflow. Using a rack without installing blanking panels to fill empty U-spaces results in improper cooling that can lead to thermal damage. CAUTION Be sure that the option equipment installed does not exceed the Manufacturer's Maximum Recommended Ambient Operating Temperature. NOTE For additional information, refer to the Setup and Installation Guide or the Documentation CD provided with the server, or to the server documentation located in the Support section at the following URL: www.hp.com/servers/proliantdl380. For additional information on data center best practices, see the "Powering the data center efficiently" available at: http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00099859/c00099859.pdf. 18