Von Duprin 33, 3549A Installation Instructions Manual

FOR DEVICES SOLD

PRIOR TO

33/3549A

4-14-14

CS 33/3549A

This instruction covers new installation of the 33/3549A
concealed vertical device for aluminum and hollow metal
doors.

Also covered is the CS 33/3549A retrofit cabling system
for converting 33/3547A Series to 33/3549A Series
(compatible with models 33/3547A, 33/3547A-F,
33/3547A-LBR, and 33/3547A-F-LBR).

1-Point

Latch
(LBL)

Installation Instructions

RF

HM

HM

AL

2-Point

Latch

includes

these

additional

parts

AL

= for Aluminum Door applications

HM

= for Hollow Metal Door applications

RF

= for Hollow Metal Door Retrofit applications

Customer Service

1-877-671-7011 www.allegion.com/us

© Allegion 2014

Printed in U.S.A.

24795379 Rev. 04/14-a

HM

AL

1

Identify Cables and Locations.

(if not preinstalled in door)

A

For easy identification,
each cable is labeled
with part number and
location.

2

Install Cable(s).

a. Position red cable end to clip on center slide

b. Pull cable into clip to snap it into place

B

a

clip

b

Door Opening

Height

6' 8"

7' 0"

8' 0"

9' 0"

10' 0"

Red

!

IMPORTANT:

Ensure cable end is

fully seated in clip

!

NOTE: For retrofit installations,

begin at Step 5.

CABLE IDENTIFICATION (STANDARD SIZES)

HOLLOW METAL AND

WIDE STILE ALUMINUM DOORS

A

Top Cable (Red)

23925761

23925647

23925522 23925522

23925407

Bottom Cable (White)

BB

Top Cable (Red)

23926173

23926058 23926058

23925936

23925811

NARROW STILE

ALUMINUM DOORS

A

Bottom Cable (White)

23925803

23925761

23925647

23925407

For 2-Point Latch Only

e. There is an adjuster on one end of the white cable. Install this end to the

remaining top latch position (marked as white)

!

Ensure cable end is

fully seated in clip

White

adjuster

e

2392621523925795 23926207

23926173

23925936

23925811

IMPORTANT:

c. Push cable snap against center slide to secure cable

cable snap

c

d. In the same way, install opposite end of red cable to top latch in the

position marked red

d

CABLE REMOVAL

A cable removal tool has been provided. Slot in tool fits over cable,

holding tabs down. Pull on cable snap to loosen cable for removal.

f. Install opposite end of white cable to bottom latch

f

cable

slot

snap

a

b

2

3

Determine if Bottom Latch Retraction Adjustment is
Necessary.

For 2-Point Latch Only

a. Flex the cable into an L-shape as shown to simulate the installed

condition of the latches.

4

Adjust Bottom Latch Retraction (if necessary).

For 2-Point Latch Only

NOTE: Adjustment must be made while the top

!

latch is in the hold-open position, with cable
flexed into an L-shape to simulate the installed
condition of the latches.

b. To determine whether an adjustment is required, actuate the top

latch to the hold-open position by pressing down on the connecting
rod. Bottom latch should retract to within ¹⁄₁₆" of flush. If it does not,
an adjustment is necessary.

These (3) hex

components
are used to
make the
adjustment.

a. While holding the snap-fitting

with a ³⁄₈" wrench, use a 10mm
wrench to break loose the lock
nut.

³⁄₈"

lock nut

top latch

10mm

conduit cap

c. While holding the conduit cap

snap-fitting

locknut

with a ³⁄₈" wrench, use a 10mm
wrench to turn the locknut in a
clockwise direction to close the
gap between the lock nut and
snap-fitting. Stop when the gap
is closed and the snap-fitting
begins to turn with the locknut.

10mm

top latch

(hold-open

position)

press

bottom latch

(retracted)

If no adjustment is
needed, proceed
to Step 5.

¹⁄₁₆"

flush

b. While holding the lock nut in

place, rotate the barrel of the
snap-fitting clockwise by hand
until the bottom latch is
retracted to within ¹⁄₁₆" of flush.

snap-fitting

flush

¹⁄₁₆"

bottom latch

(retracted)

³⁄₈"

conduit

cap

d. While holding the snap-fitting

with a ³⁄₈" wrench, continue to
tighten the locknut until it is
secure.

10mm

³⁄₈"

3

5

If Retrofit Installation

a. Remove device

from existing
door.

6

With Door Laying Flat, Draw Horizontal and Vertical

b. Remove and

discard existing
door.

c. Remove and

discard existing
strikes.

Device Center Lines ( ).

See template
for Backset

8

Assemble Latch Mounting Brackets.

Hollow Metal

Top

1/4"3/4"

3/4"

1/4"

Top Door Channel

3/4"

1/4"

Bottom

For 2-Point Latch Only

³⁄₄" mounting

shown

RHR shown

(LHR opposite)

!

NOTE: Centerlines are predetermined by cutout. If no

cutout exists, refer to templates at the back of this
instruction to determine centerlines.

7

Align Paper Template to Mark and Prepare Door, if
Required.

See pages 11 and 12
for paper templates.

9

Prepare Access Hole for Bottom Latch Adjustment
Pin.

Hollow Metal

For 2-Point Latch Only

Door Door

4¹⁄₄" depth

clearance

required

⁵⁄₈" from
push side
of door

3¹⁵⁄₁₆"

³⁄₄" Dia.

hole

⁵⁄₈" from

push

side of

door

RHR shown

(LHR opposite)

Bottom of Door Door Edge

RHR

Door Edge

LHR

4