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Space and airflow requirements
Space and airflow requirements
To allow for servicing and adequate airflow, observe the following space and airflow requirements when installing the server in an indoor
commercial rack:
63.50 cm (25.00 in) in front of the rack
76.20 cm (30.00 in) behind the rack
121.90 cm (48.00 in) from the back of the rack to the back of another rack or row of racks
Observe the following additional airflow requirements:
Servers draw in cool air through the front door and expel warm air through the rear door. Therefore, the front and rear rack doors must
be adequately ventilated to allow ambient room air to enter the cabinet, and the rear door must be adequately ventilated to allow the
warm air to escape from the cabinet.
To prevent improper cooling and damage to the equipment, do not block the ventilation openings.
When the vertical space in the rack is not filled by a server or rack component, the gaps between the components cause changes in
airflow through the rack and across the servers. Cover all gaps with blanking panels to maintain proper airflow. Using a rack without
blanking panels results in improper cooling which can lead to thermal damage.
If a third-party rack is used, observe the following additional requirements to ensure adequate airflow and prevent damage to the
equipment:
Front and rear doors—If the 42U rack includes closing front and rear doors, you must allow 5,350 sq cm (830 sq in) of holes evenly
distributed from top to bottom to permit adequate airflow (equivalent to the required 64 percent open area for ventilation).
Side—The clearance between the installed rack component and the side panels of the rack must be a minimum of 7.00 cm (2.75 in).
Temperature requirements
Temperature requirements
To ensure continued safe and reliable equipment operation, install or position the system in a well-ventilated, climate-controlled
environment.
The maximum recommended ambient operating temperature (TMRA) for most server products is 35°C (95°F). The temperature in the room
where the rack is located must not exceed 35°C (95°F).
CAUTION: To reduce the risk of damage to the equipment when installing third-party options:
CAUTION:
Do not permit optional equipment to impede airflow around the server or to increase the internal rack temperature
beyond the maximum allowable limits.
Do not exceed the manufacturer's TMRA.
Power requirements
Power requirements
Installation of this equipment must comply with local and regional electrical regulations governing the installation of information technology
equipment by licensed electricians. This equipment is designed to operate in installations covered by NFPA 70, 1999 Edition (National
Electric Code) and NFPA-75, 1992 (code for Protection of Electronic Computer/Data Processing Equipment). For electrical power ratings on
options, refer to the product rating label or the user documentation supplied with that option.
WARNING: To reduce the risk of personal injury, fire, or damage to the equipment, do not overload the AC supply branch
WARNING:
circuit that provides power to the rack. Consult the electrical authority having jurisdiction over wiring and installation
requirements of your facility.
HPE ProLiant ML110 Gen11 Server User Guide
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