Allen-Bradley SMC-50 User Manual

256 Rockwell Automation Publication 1560F-UM001A-EN-P - June 2019
Appendix D ArcShield Unit Information
Chimney Information
Where adequate clean height (space) is available, chimney can be provided for
each unit in place of the plenum system. It is to be field mounted on top of the
unit structure. The purpose of the chimney is to direct the hazardous flames and
gases away from the top of the resistant enclosure for the chimney is secured to
the top of each unit structure. Refer to Appendix F
for chimney installation
instructions.
Each ArcShield line-up includes a chimney exhaust section that extends vertically
directly above the enclosure.
Chimney Exhaust
Considerations
1. From the outlet of the chimney, there needs to be a minimum clear
distance of 1.7m from the top of the chimney to the ceiling, and 1m
(39 in.) on each side.
2. No obstructions (for example, piping) can be in path of the exhaust within
this 1.7m (67 in.) height requirement.
Plan the location where the chimney will exhaust. Ensure that:
• There is no access to personnel while equipment is energized.
• Area is free of flammable material or vapors.
• Ensure that adequate space is provided around the chimney exhaust as
outlined in Figure 81
.

Allen-Bradley SMC-50 Specifications

General

Brand	Allen-Bradley
Model	SMC-50
Category	Controller
Language	English