Digital Equipment HA3000, Руководство по установке

Страница: 26 / 96

2–6 SITE PREPARATION
2.4 HA32B UPS BATTERY CABINET
Before installation of the UPS Battery Cabinet, consideration must be given to the
environmental and the structural integrity of its intended location. The electrical wiring
must meet both local and national electrical codes.
2.4.1 Environmental Considerations
• Air Temperature: The recommended operating temperature is 25°C (77°F).
The UPS Battery Cabinet adds an insignificant amount of heat to the environment
when fully charged, and normally is not calculated when sizing the capacity of an air
conditioner.
• Air Quality: The UPS Battery Cabinet should be provided with air free of
contaminants such as excessive moisture, vapor, flammable gases, chemical fumes,
salt, or excessive dirt and dust.
• Ventilation: The UPS Battery Cabinet is designed for operation on a raised
computer room floor or a concrete floor. Cooling air for the UPS Battery Cabinet
is typically provided through a perforated floor tile on a computer room floor. Cutouts
are necessary for bottom access cables only.
•
Humidity: 10 to 90%, noncondensing.
•
Altitude: Sea level to 2,134 meters (7,000 feet).
2.4.2 Mechanical Considerations
• Floor Tile Cutout: A floor tile cutout is required to provide bottom cable entry to
the UPS Battery Cabinet. When the UPS Battery Cabinet is installed on a raised
computer floor, its weight should be evenly distributed. Locate the corners of the UPS
Battery Cabinet as close as possible to the corners of the tiles. Figure 2–4 gives the
nominal dimensions and location for this cutout.
TILE
24 INCH
(REF)
24 INCH
(REF)
TILE FRONT
2.5 INCH
2 INCH (TYPICAL)
6 INCH BY 20 INCH
CUT OUT
MKV-A2203-91
Figure 2–4 Floor Tile Cutout