1
Install exit devices according to instructions
included with the exit devices before installing
mullion. This will ensure the correct positioning
of the mullion between the center cases.
Center bottom retainer between doors and
fasten in place with screws provided.
Center top retainer between doors and fasten
in place with screws provided.
Determine the length of the mullion and cut off
the bottom end.
(
Length of Mullion = dim “x” -3/4”)
(1/8” clearance at top)
Place mullion assembly into bottom retainer
and slide top of the mullion into the top
retainer until it latches.
To eliminate any rattle remove mullion using
the key and adjust set screws in top and bottom
retainers.
Do not over tighten set screws.
Position strike on center line of latch bolt per exit
instructions, drill and tap mullion.
Attach strike with (2) screws through slotted
holes. Adjust for proper position and tighten
screws. Drill and tap the (2) center holes
in mullion and install screws securely (both sides).
2
3
4
5
6
7
8
Set screw for
stabilizing
the mullion
Center
line of
latchbolt
Dim. “x”
Installation Instructions
L980S Lockable Non Fire Rated Mullion
1-800-727-5477 • www.sargentlock.com
A7687C 11/21
Copyright © 2008, 2021, SARGENT Manufacturing Company. All rights reserved. Reproduction in whole or in part without the express
written permission of SARGENT Manufacturing Company is prohibited. Patent pending and/or patent www.assaabloydss.com/patents.
