Overview Of Installation - Hitachi Compute Rack 220H Getting Started Manual

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The noise level of this system unit is 62 dB or less.
We recommend installing the system unit in a dedicated room. You may feel
the noise annoying depending on the installation environment or location. If
you install the system unit in an office room, be careful enough to the
environment and location.
The noise level of the equipment is measured in accordance with ISO 7779
standard (Environment temperature is 15 degrees Celsius or less / Position of
measurement is 100 cm apart from the front of the equipment and at the
height of 150 cm).
Note that the rotational speed of the fans is controlled by the temperature
inside the system unit. If the maximum load continues for an extended
amount of time at high temperature, or one of the fans gets out of order, the
noise level may exceed this standard level. Note also that on startup or
reboot, the fans run at full speed and the noise level may exceed this
standard level.
Electrical outlets
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Use only 100-120 VAC or 200-240 VAC as the power supply. Use electrical
power plugs and electrical outlets that meet respective specifications.
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An electric outlet has Line (L), Neutral (N), and Ground (G) conductors.
Before using the electric outlet, confirm the Neutral and the Ground have the
same electrical potential.

Overview of Installation

This section describes precautions to be taken when you setup and also describes
how to Installation.
Precautions
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Read
when you installation.
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Read manuals other than this manual those are bundled with the system unit
and peripherals. Make sure you fully understand the steps and process before
installation.
•
If any specific instructions are given in other manuals in addition to what is
explained in this manual, follow those instructions during installation.
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If you experience any troubles during installation, contact the sales
representative or talk to the maintenance personnel.
1-4
Do not connect both types of power sources, 100 VAC and 200 VAC to
the system unit at the same time. The system unit does not support AC
power supply at different multiple voltages.
Safety guidelines carefully before setup and be careful enough to safety
Before installing
Hitachi Compute Rack 220H Getting Started Guide