HP ProLiant SL4545 HP ProLiant SL4500 Series Setup and Installation Guide - Page 7

Temperature requirements, Power requirements

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• Leave a minimum clearance of 61.0 cm (24 in) in front of the rack. • Leave a minimum clearance of 76.2 cm (30 in) in back of the rack. • Leave a minimum clearance of 121.9 cm (48 in) from the back of the rack to the rear of another rack or row of racks. HP rack products draw cool air in through the front and expel warm air through the rear of the enclosure. Therefore, the front of the rack enclosure must be adequately ventilated to enable ambient room air to enter the enclosure, and the rear of the enclosure must be adequately ventilated to enable the warm air to escape from the enclosure. IMPORTANT: Do not block the ventilation openings. If the front of the rack is not completely filled with components, the remaining gaps between the components can cause changes in the airflow, which can adversely affect cooling within the rack. Cover these gaps with blanking panels. CAUTION: Always use blanking panels to fill empty vertical spaces in the rack. This arrangement ensures proper airflow. Using a rack without blanking panels results in improper cooling that can lead to thermal damage. Racks provide proper server cooling from flow-through perforations in the front and rear doors that provide a 65% open area for ventilation. Temperature requirements To ensure continued safe and reliable equipment operation, install or position the rack in a well ventilated, climate-controlled environment. The operating temperature inside the rack is always higher than the room temperature and is dependent on the configuration of equipment in the rack. Check the TMRA for each piece of equipment before installation. CAUTION: To reduce the risk of damage to the equipment when installing third-party options: • Do not permit optional equipment to impede airflow around the node or to increase the internal rack temperature beyond the maximum allowable limits. • Do not exceed the manufacturer's TMRA. Power requirements Installation of this equipment must comply with local and regional electrical regulations governing the installation of IT 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 circuit that provides power to the rack. Consult the electrical authority having jurisdiction over wiring and installation requirements of your facility. Planning the installation 7

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Planning the installation 7
•
Leave a minimum clearance of 61.0 cm (24 in) in front of the rack.
•
Leave a minimum clearance of 76.2 cm (30 in) in back of the rack.
•
Leave a minimum clearance of 121.9 cm (48 in) from the back of the rack to the rear of another rack
or row of racks.
HP rack products draw cool air in through the front and expel warm air through the rear of the enclosure.
Therefore, the front of the rack enclosure must be adequately ventilated to enable ambient room air to enter
the enclosure, and the rear of the enclosure must be adequately ventilated to enable the warm air to escape
from the enclosure.
IMPORTANT:
Do not block the ventilation openings.
If the front of the rack is not completely filled with components, the remaining gaps between the components
can cause changes in the airflow, which can adversely affect cooling within the rack. Cover these gaps with
blanking panels.
CAUTION:
Always use blanking panels to fill empty vertical spaces in the rack. This arrangement
ensures proper airflow. Using a rack without blanking panels results in improper cooling that can
lead to thermal damage.
Racks provide proper server cooling from flow-through perforations in the front and rear doors that provide
a 65% open area for ventilation.
Temperature requirements
To ensure continued safe and reliable equipment operation, install or position the rack in a well ventilated,
climate-controlled environment.
The operating temperature inside the rack is always higher than the room temperature and is dependent on
the configuration of equipment in the rack. Check the TMRA for each piece of equipment before installation.
CAUTION:
To reduce the risk of damage to the equipment when installing third-party options:
•
Do not permit optional equipment to impede airflow around the node or to increase the
internal rack temperature beyond the maximum allowable limits.
•
Do not exceed the manufacturer’s TMRA.
Power requirements
Installation of this equipment must comply with local and regional electrical regulations governing the
installation of IT 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 circuit that provides power to the rack. Consult the electrical
authority having jurisdiction over wiring and installation requirements of your facility.