Delivery Space Requirements; Operational Space Requirements; Equipment Clearance And Floor Loading - HP BL685c - ProLiant - 4 GB RAM Site Planning Manual

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At least 762 mm (30 in) of clearance is needed in the rear of the rack to provide access to
components.
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At least 380 mm (15 in) of clearance is needed around a power supply to facilitate servicing.
For more information, see "Working space for component access (on page 14)".

Delivery space requirements

There should be enough clearance to move equipment safely from the receiving area to the computer
room. Permanent obstructions, such as pillars or narrow doorways, can cause equipment damage.
Delivery plans should include the possible removal of walls or doors.

Operational space requirements

Other factors must be considered along with the basic equipment dimensions. Reduced airflow around
equipment causes overheating, which can lead to equipment failure. Therefore, the location and
orientation of air conditioning ducts, as well as airflow direction, are important. Obstructions to
equipment intake or exhaust airflow must be eliminated.
CAUTION:
to prevent overheating of the unit.
The locations of lighting fixtures and utility outlets affect servicing operations. Plan equipment layout to
take advantage of lighting and utility outlets. Do not forget to include clearance for opening and closing
equipment doors.
Clearance at the front and rear of the racks must also be provided for proper cooling airflow through the
equipment.
If other equipment is located so that it exhausts heated air near the cooling air intakes of the racks, larger
space requirements are needed to keep ambient air intake to the racks and equipment within the
specified temperature and humidity ranges.
Space planning should also include the possible addition of equipment or other changes in space
requirements. Equipment layout plans should also include provisions for the following:
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Channels or fixtures used for routing data cables and power cables
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Access to air conditioning ducts, filters, lighting, and electrical power hardware
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Power conditioning equipment
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Cabinets for cleaning materials
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Maintenance area and spare parts

Equipment clearance and floor loading

A clearance of 1219 mm (48 in) in front of a configured rack and 762 mm (30 in) to the rear of a
configured rack is recommended. All buildings and raised computer room floors are engineered to
provide a specific floor loading.
Do not block venting holes in the covers or side panels. Proper airflow is required
Environmental requirements 20