Environmental And Electrical Specifications; Environmental Requirements - Sun Microsystems Sun Fire E6900 Site Planning Manual

3
C H A P T E R
Environmental and Electrical
Specifications
3.1

Environmental Requirements

The design of your environmental control system—such as computer room air-
conditioning units—must ensure that intake air to the server system complies with
the limits specified in this section.
To avoid overheating:
Guard against directing any warmed air toward the bottom of the cabinet or
■
standalone server.
Guard against directing warmed air toward the server access panels.
■
The air intake screens act as electro-magnetic interference (EMI) and radio frequency
interference (RFI) filters, stopping both EMI and RFI emissions from the system.
These screens are a honeycomb-type screens, which also collect and trap dust and
debris particles.
The Sun Fire E6900/E4900 systems have been designed for maximum availability.
Air intake screens can be cleaned or changed without the need to power off the
system.
The Sun Fire E6900/E4900 system's air intake screens require periodic inspection
and cleaning. To prevent restricted airflow and possible equipment failure, the air
intake screens should be inspected for debris and trapped particles every three
months of operation. The level of debris found on the screens and surrounding area
should be considered in the decision of when to remove and clean the air intake
screen.
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