Cooling Requirements; Air Quality Specifications; Acoustic Noise Specifications - HP integrity superdome x Service Manual

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Cooling requirements

Integrity Superdome X is a rack-mounted system that cools by drawing air in the front and exhausting it
out the rear. General ASHRAE best practices must be followed when installing the system in a data
center.
• Hot/cold aisle layout
• Appropriate blanking panels in any unused space in the rack.
• No gaps exist between adjacent racks, which ensures minimal air recirculation.
• An adequate hot-air return path to the computer room air conditioners (CRAC) or computer room air
handlers (CRAH), which minimizes the flow of hot air over any rack.
Integrity Superdome X utilizes variable speed fans to realize the most efficient use of air. The volume of
air required varies with the temperature of the air supplied to the inlet.
IMPORTANT:
The optimal equipment orientation is a parallel layout to the air flow supply and return. Supply air
will flow down cold aisles which are parallel to equipment rows, and return air to CRAC through
parallel air flow. Perpendicular air flow causes too much room mixing, places higher electrical loads
on the room, and can lead to unexpected equipment problems.
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Air quality specifications

Chemical contaminant levels in customer environments for Hewlett Packard Enterprise hardware
products must not exceed G1 (mild) levels of Group A chemicals at any time. These contaminant levels
are described in the current version of ISA–71.04 Environmental Conditions for Process Measurement
and Control Systems: Airborne Contaminants.
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• ISA–71.04 Environmental Conditions for Process Measurement and Control Systems: Airborne
Contaminants

Acoustic noise specifications

The acoustic noise specifications are 8.6 bel (86 dB) (sound power level).
IMPORTANT:
Hewlett Packard Enterprise recommends that anyone in the immediate vicinity of the product for
extended periods of time wear hearing protection or use other means to reduce noise exposure.
This level of noise is appropriate for dedicated computer room environments, not office environments.
Understand the acoustic noise specifications relative to operator positions within the computer room when
adding Integrity Superdome X systems to computer rooms with existing noise sources.
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Cooling requirements 29