Temperature Requirements; Power Requirements - HP PtoLiant DL140 Setup And Installation Manual

HP servers draw in cool air through the rack front door and expel warm air through the rack rear
door. Therefore, the front and rear rack doors must be adequately ventilated to allow ambient
room air to enter the cabinet and warm air to escape from the rear of the cabinet.
IMPORTANT: Do not block the ventilation openings.
NOTE: It is recommended that rows of racks be arranged where front panels on one row face
the front panels of opposite rows and the back panels of racks face the backs of racks in
opposite rows.
When there is any vertical space in the rack not filled by servers or rack components, 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.
Compaq branded Rack 9000 and Rack 10000 Series products provide proper server cooling from
flow-through perforations in the front and rear doors that provide 64 percent open area for
ventilation.
CAUTION: When using a Compaq branded Rack 7000 Series rack, the high airflow
rack door insert must be installed [P/N 327281-B21 (42U) and P/N 157847-B21
(22U)] to provide proper front-to-back airflow and cooling.
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, 5,350 sq cm (830 square inches) of holes evenly distributed from top to
bottom must be available to permit adequate airflow (equivalent to the required
64 percent open area for ventilation).
•
Side panels: The clearance between the installed rack component and the side
panels of the rack must be a minimum of 7 cm (2.75 inches).
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.

Temperature Requirements

To ensure continued safe and reliable equipment operation, install or locate the system in a
well-ventilated, climate-controlled environment.
The maximum recommended ambient operating temperature (TMRA) for this server is 35°C
(95°F). The temperature in the room where the rack is located must not exceed 35°C (95°F).

Power Requirements

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 the
facility's wiring and installation requirements.
HP ProLiant DL140 Server Setup and Installation Guide
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