Fans
The VEP4600 comes from the factory with one or two PSUs and four or ve AC normal fan modules installed in the platform, depending
on the conguration. The fan modules and the power supplies, which have integrated fans, are hot-swappable.
In addition to the power supply modules, you can order and install fan modules separately.
The VEP4600 supports airow is from the I/O panel to the PSU. The red indicator is the normal airow direction.
Environmental factors can decrease the amount of time required between fan replacements. Check the environmental factors regularly. An
increase in temperature and/or particulate matter in the air might aect performance; for example, new equipment installation.
CAUTION: Check the fans at six-month intervals; replace them as necessary. Regularly monitor the speeds of the fans to
accurately determine replacement intervals.
Topics:
• Components
• Fan module installation
Components
Figure 15. VEP4600 fan modules
1
Fan modules
Fan LEDs
• Solid green—Fan function is normal.
• Flashing yellow (amber)—There is a fan fault.
• O—Fan is o.
6
Fans 25
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