Rockwell Automation 1512B MV Controllers, 200/400A Two-High Cabinet, Standard and Arc-Resistant Enclosure - Manual (Page 98)

90 Rockwell Automation Publication 1500-UM055G-EN-P - May 2013
Appendix C ArcShield Chimney Installation Instructions
Chimney Placement on Structure
Once the Chimney has been lifted in place directly over the relief vent (shown in
Figure 80 on page 81 ), all 1/4-20 fasteners, removed in Cabinet Preparation on
page 89 , are replaced to attach the chimney to the top of the enclosure.
Figure 93 - Chimney Placement
Use recommended torque
value for 1/4-20 fasteners
TIP Use silicone caulking generously to fill any air gaps once the chimney has been
securely mounted in place.