Rockwell Automation Publication 1560F-UM001A-EN-P - June 2019 259
ArcShield Plenum Installation Instructions Appendix E
General Plenum Layout for
ArcShield Line-up
An example of a general Plenum assembly configuration is shown in Figure 84.
Plenums of varying widths are mounted directly over the MV enclosures of the
corresponding width. A 0.9 m (36 in.) Exhaust extension assembly is shown
mounted on the extreme right side Plenum of the equipment “Line-up” (can
alternatively exhaust to the left. Engineered systems can be made site specific).
Figure 84 - ArcShield Line-up
Plenum exhaust can be on the left or right hand end of the line-up. Pictures and
figures in this procedure are shown for a right hand exhaust exit direction. Also
shown is an optional vertical (top) direction exhaust extension (see Figure 98
).
18 in. long Extension
Connected to the last Plenum on the
exhaust end of the “line-up”
26 in. long Extension
Connected to the last Plenum on the
exhaust end of the “line-up”
36 in. long Extension
Connected to the last Plenum on the
exhaust end of the “line-up”
Screen Cover Plate
Fastened at the opening of the last
component on the exhaust end
End Cover Plate
Fastened at the opening of the last
Plenum in the “line-up” opposite the
exhaust end to seal Plenum end
90° Elbow Section
Connected at the exhaust end of the
Plenum (or Extension)
Sealed end
36" Exhaust extension
Exhaust end
IMPORTANT Plenum components not directly mounted to the tops of the MV enclosures,
must have additional mounting support. This includes the Extension
components and 90° Elbow Sections (refer to
STEP 7 – Additional Mounting
Support on page 265).
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