Rockwell Automation 1512A MV Controllers - 800A One-High Cabinet - Manual (Page 88)

B-6 ArcShield Plenum Installation Instructions
1512A-UM102B-EN-P – June 2013
STEP 1 – Mounting a Single Plenum
Before mounting a single Plenum over a MV enclosure, the front duct
section must first be removed. This is shown in figure B.4.
Front Duct Section
Components
Figure B.4 – Removing Front Duct Section
Cabinet Preparation
In preparation for mounting Plenum, remove ¼ -20 fasteners from the
Relief vent on the top of the MV enclosure. Leave the (4) corner
fasteners in place. (See Figure B.6)
Remove Fasteners
Relief Vent
Do not remove
(4) corner
fasteners
Figure B.5 – Relief Vent Fasteners (top view) Figure B.6 – Relief Vent