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5-1 Installation Environment
This section details the necessary environmental conditions for installing the
PC.
Caution Static electricity can damage PC components. Your body can carry an electro-
static charge, especially when the humidity is low. Before touching the PC, be
sure to first touch a grounded metallic object, such as a metal water pipe, in order
to discharge any static build-up.
Ambient Conditions Do not install the PC in any of the following locations. Doing so will affect PC
life and may affect operating performance.
• Locations subject to ambient temperatures lower than 0°C or higher than
55°C.
• Locations subject to drastic temperature changes or condensation.
• Locations subject to ambient humidity lower than 10% or higher than 90%.
• Locations subject to corrosive or flammable gases.
• Locations subject to excessive dust (especially iron dust) or chloride.
• Locations that would subject the CPU Unit to direct shock or vibration.
• Locations that would subject the PC to water, oil, or chemical reagents.
• Locations exposed to direct sunlight.
Cooling There are two points to consider in order to ensure that the PC does not
overheat. The first is the clearance between Racks, and the second is instal-
lation of a cooling fan.
Clearance Between Racks The Racks need to have sufficient room between each other to allow for I/O
wiring, and additional room to ensure that the I/O wiring does not hamper
cooling. However, the Racks must be mounted close enough to each other
that the length of the Connecting Cable between any two Racks does not
exceed 10 m, and the total length of the Connecting Cables between all
Racks does not exceed 12 m. As a general rule, about 70 to120 mm should
be left between any two Racks.
Cooling Fan A cooling fan is not always necessary, but may be needed in some installa-
tions. Try to avoid mounting the PC in a warm area, or over a source of heat.
A cooling fan is needed if the ambient temperature may become higher than
that specified (refer to Appendix B Specifications). If the PC is mounted in an
enclosure, a cooling fan may need to be installed, as shown below, to main-
tain the ambient temperature within specifications.
PC
Fan
Control Panel
Installation Environment Section 5-1
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