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*640092-00*
640092-00
Keyed Removable Mullions
4023 KR
Installation Instructions
Not for use on electric or fire rated removable mullions
This kit includes the following parts: (Not to scale)
5/16 External Tooth Lock Washer
WAR
NIN
G
Rem chec con ove dition key,
.
rein locke d
Cylinder Lock Nut
5/16-18 x 1-1/4” Flat Pan Head Machine Screw and Expansion Anchor
5/16-18 x 1-1/4”
Button Socket Head Cap Screw
1/4-20 x 1” Flat Head
Socket Security Machine Screw
8-32 x 3/8” Set Screw
Sex Bolt
8-32 x 1/4” Undercut Flat Head
Socket Security Machine Screw
Locking mullion assembly
Mullion Body
Cylinder Locking
Washer
Bottom Mullion Fitting
Top mullion fitting 5/32” Hex Key Top Mullion Fitting Shim
Step 1
Prepare the Keyed Removable Unit.
1
3
Thread cylinder lock nut onto mortise key cylinder.
Be sure to fasten down tight.
Position cylinder locking washer over mortise key cylinder hole.
Note: Raise the locking pin lever to aid in installation.
Back Cover Plate
Locking pin lever
Cylinder locking washer
Cylinder lock nut
Collar
(not supplied)
2
Mortise key cylinder w/standard cam
(not supplied)
Insert mortise key cylinder through collar and into hole.
N ote: Cylinder must be oriented as shown.
1/8” maximum thickness
1-1/8” or 1-1/4”
4
Position back cover plate.
5/32 Sec Hex Key
5
Install screws. (8-32 x 1/4" Undercut Flat Head
Socket Security Machine Screw)
Do not tighten down.
Step
2
Install bottom mullion fitting. (If bottom mullion fitting already exists, go to Step 3 .)
Bottom mullion fitting
mounted flush against inside face of doors.
C Door Opening
2
Cut threshold to allow bottom mullion fitting to sit on the floor. (Use bottom mullion fitting as template)
4
Install screws. (5/16-18 x 1 1/4"
Flat Pan Head Machine Screw)
3
Position bottom mullion fitting.
2
Install 5/16" x 18 expansion anchors.
C Door Opening
1
Drill 5/8" Diameter x 1 1/2" Deep holes.
Step
3
Size mullion.
Measure from this edge.
’X’
Measure to this edge.
1
Measure distance from frame to bottom mullion fitting.
Do not cut end of mullion with warning label.
Mullion Length = ’X’ - 4 3/16"
90°
2
Determine mullion length
using formula and cut.
Remove all burrs and sharp edges.
3
Step
4
Install top mullion fitting.
CL
Top Mullion Fitting Shim
Note: If mullion is cut between 3/16" - 5/16" too short, add top mullion fitting shim.
1
Position top mullion fitting
4
4
Install screws and Lock Washers. (5/16-18 x 1 1/4"
Button Socket Head Cap Screw & 5/16 External Tooth Lock Washer)
16 Gauge
Reinforcement.
Supplied by frame
manufacturer.
2
Mark holes.
3
Drill and tap frame for
5/16-18 screws using top mullion fitting as template.
Top mullion fitting
mounted flush against
inside face of doors.
C Door Opening
Mounting Top mullion fitting on optional frame styles:
16 Gauge
Reinforcement
16 Gauge
Reinforcement
Angle Bracket can be purchased through
Von Duprin.
16 Gauge
Reinforcement
Filler block is to be supplied by frame manufacturer.
Step
5
Attach keyed removable unit to mullion.
Keyed
Removable
Unit
!
!
WARNING
Remove key, reinstall, and pull mullion to check for locked condition.
1
Position keyed removable unit onto top of mullion.
2
With a hammer and a block of wood, tap keyed removable unit snug against mullion.
This end has label
Bottom of
Mullion
7
Tighten down screws.
5
Install sex bolts by
tapping into hole with
a hammer and a
block of wood.
4
Drill (2) 11/32" Diameter holes.
6
Install screws. (1/4-20 x 1"
Flat Head Socket Security
Machine Screw)
5/32 Security Hex Key
3
Drill (2) 13/32" Diameter
holes (this side only) using holes in unit
as template.
5
Step 6
Final Installation & Adjustment.
1
Install mullion.
2
Install screw. (8-32 x 3/8" set screw)
until flush with face of top mullion fitting.
Check for tightness of mullion by pushing
and/or pulling on mullion. To tighten, remove
7
1/2 turn. Repeat this procedure until desired
tightness is reached.
6
Step 7
Operation.
WARNING! If set screw is adjusted out too far, the bolt may not latch completely allowing the mullion to fall out when impacted.
Rotate key 180 °
Clockwise to unlock and remove mullion
7
Customer Service
1-877-671-7011 www.allegion.com/us
© Allegion 2014
Printed in U.S.A.
640092-00 Rev. 06/14-a

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