VON DUPRIN 7847 Concealed Vertical Rod Exit Device Installation Guide

: September 14, 2024
: VON DUPRIN

7847 Concealed Vertical Rod Exit Device

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Product Specifications:

Model: 7847/48 Concealed Vertical Rod Exit Device
Applications: Metal Doors
Devices Covered:
- 7847/48 Concealed Vertical Rod Exit Device
- 7847-F/48-F (Fire) Concealed Vertical Rod Exit Device
- CD7847/48 (Cylinder Dogging) Concealed Vertical Rod Exit
  Device
- QEL7847/48/-F (Electric Latch Retraction) Concealed Vertical
  Rod Exit Device
- HH/HW7847/47-F (Hurricane) Concealed Vertical Rod Exit
  Device

Installation Instructions:

Tools Required:

5/64 hex wrench
10-24 tap
Drill bits: #25, 1/4, 13/32, 1/2

Hurricane Rated Device Requirements:

For hurricane rated device requirements, refer to page 4 of the
manual.

Customer Service:

For assistance, contact Customer Service at 1-877-671-7011 or
visit www.allegion.com/us

Screw Chart:

Details on screw sizes and applications are provided in the
manual.

Door Preparation Chart:

Refer to the instructions on the following pages for door
preparation details.

Device Cut-outs:

Instructions on marking and cutting out for metal and wood doors
are provided.

Latch Cases:

Detailed instructions on drilling for latch cases on different
door sizes are included.

Frequently Asked Questions (FAQ):

Q: What tools do I need for installation?

A: You will require a 5/64 hex wrench, #10-24 tap, and drill
bits: #25, 1/4, 13/32, 1/2.

Q: Where can I find hurricane rated device requirements?

A: The hurricane rated device requirements are detailed on page
4 of the manual.

Q: How can I contact Customer Service for assistance?

A: You can reach Customer Service at 1-877-671-7011 or visit
www.allegion.com/us.

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47986707
47986707

7847

Concealed Vertical Rod Exit Device Metal Door Applications

Installation Instructions

Devices covered by these instructions:
7847/48 Concealed Vertical Rod Exit Device 7847-F/48-F (Fire) Concealed Vertical Rod Exit Device CD7847/48 (Cylinder Dogging) Concealed Vertical Rod Exit Device QEL7847/48/-F (Electric Latch Retraction) Concealed Vertical Rod Exit Device HH/HW7847/47-F (Hurricane) Concealed Vertical Rod Exit Device

Dogging Key (use with non-fire devices
to lock down pushbar)
Index: · Screw chart ……………………….. 2 · Door preparation chart ………… 3 · Device installation ……………. 4-6 · Adjust rods ………………………… 7 · Frame preparation chart ………. 7 · Optional equipment ……………. 8 · Cut device ………………………… 8
Special tools needed: 5/64″ hex wrench #10-24 tap Drill bits: #25, 1/4″, 13/32″, 1/2″

For hurricane rated device requirements, see page 4.
Customer Service
1-877-671-7011 www.allegion.com/us

SCREW CHART

A

10-24 x 1″

Surface mount or

Sex bolts (1-3/4″ door)

10-24 x 1-1/2″

Sex bolts (2-1/4″ door)

– Packaged with trim #10-24 x 3/4″

10-24 x 1″

785 trims (1-3/4″ door) 785 trims (2-1/4″ door)

B

10-24 x 3/4″

Surface mount or Sex bolts (1-3/4″ door)

10-24 x 1-1/8″

Sex bolts (2-1/4″ door)

C

10-16 X 3/8″ Thread cutting

End cap

D

10-32 X 1/4″

Bracket to latch

E

10-24 X 1/2″

Bracket to door

F

Rod adjusting screw

Retaining clip

G

8-32 X 5/16″

Retaining clip

H

10-24 X 1/2″

338 strike

I

10-24 X 1-1/2″

Ratchet release

J

8-18 x 3/8″ Thread cutting

2

Center case cover

DOOR PREPARATION CHART
Go to instructions on next page before using preparation chart
Ratchet Release Hole
11/16″ 1/2″ Stop height 13/16″ 5/8″ Stop height 15/16″ 3/4″ Stop height
Reinforcing required

Center case – 4 holes
Surface mount *Sex bolts or trims

25 Drill

1/4″ Drill (device side)

10-24 tap 13/32″ Drill (trim side)

X

Required on Hurricane (HH) devices

CL

*End cap bracket – 2 holes

Surface mount

**Sex bolts

X

25 Drill #10-24 tap

1/4″ Drill (device side) 13/32″ Drill (trim side)

Prepare holes after lock side of device is mounted and hinge side is equal distance to bottom of door
** Required on Hurricane (HH) devices

Drill 1/2″ dia. hole (inside face of door)
CL Latch
Door Cut-outs
Outside cylinder and trim applications: Mark with template and cut-out: Metal door (cut device side) Wood door (cut thru)
For all 7847, 7847-F, and HH7847 devices:
Trace cut-outs from plastic template (cut device side only)

Latch Cases

(Drill top and bottom of door)

CL Latch case and device

1-5/8″ 1-5/8″ 1-9/32″ 1-9/32″

Inside face of door

1-3/4″

CL Latch case and device

1-5/8″

Inside face of door

1-9/32″

2-1/4″ 1-3/4″

HH / Fire Device

7/8″

CL Latch

case

7/16″ Drill & tap #10-24

2-1/4″
Panic device

7/8″
7/8″ CL Latch
case
7/16″ Drill & tap #10-24
3

HURRICANE RATED DEVICE REQUIREMENTS

Hurricane rated exit device requirements (when used with approved Allegion door applications)

Sexbolts

When installing a Wind and Impact-rated hurricane device (HH), sex bolts must be used. Sex bolts are noted throughout the instructions where applicable. If through-bolting trims are used, these trims are equivalent in function and are used in place of sex bolts.

Application

Single door standard strike

Mullion

Double door standard strike

HH (Wind and

HH7847,

Top: 338

Impact rated)

7847

Bottom: 304L

Top: 338

or

HW (Wind Only)

7847-F

Bottom: 304L

1 Draw Horizontal Device Center Line ( )

3 Prepare Door per Preparation Chart on Page 3

RHR shown (LHR opposite)

LC
3t9o-5fi/n8i”sflhoeodr

See trim instructions for pull side door preparation. Line X-X in trim instructions is same as device CL

2 Determine Correct Backset, then Mark 4 Holes for
Device Center Case Using Template

Mark centerline using measuring tape. Place template on centerline mark.

7847 (non-fire rated device) single or double door

7847-F (fire rated device)
or HH7847 (hurricane rated device)

4 Adjust Tailpiece if Needed
Make sure tailpiece is installed at correct length for 1-3/4″ thick or 2-1/4″ thick door. If necessary, remove pine tree clip, rotate tailpiece, and reinstall pine tree clip.

CL
2-3/16″ backset
CL
Mark 4 holes 4

CL
2-3/4″ backset
CL
Mark 4 holes

Pine tree clip Tailpiece

1-3/4″ door 2-1/4″ door

5 If Using a Cylinder, Remove Cam and Rotate 180°
Cam must be in position shown with key removed. If necessary, remove cam screws, place cam is correct position, and reinstall cam screws.
Standard Orientation with key removed.
Rotate cam if necessary as shown here.

8 Assemble Rods and Latches and Adjust Length for
Proper Door Height
Follow red and blue instruction cards on rods to set initial rod length

Top length

Fine tune the overall length by threading latch in or out
of rod

For NL and E-trims, use this orientation.
6 If Necessary, Install Cylinder.

Bottom length

1-1/8 – 1-1/4″ (29-32 mm)
1-3/8 – 1-1/2″ (35-38 mm)

9 Install Rods and Latches as Shown

Note: Fire / HH devices use brackets on both sides of latches

Top rod

E

& latch

Bottom rod & latch

D

7 If Using a Cylinder with a Tailpiece, Prepare Device
and Cylinder
a. Install tailpiece guide.
Tailpiece guide Trim output tailpiece

Top rod
Bottom rod

F
Device aligns with mounting holes which were
prepared in step 3.
G

5

10 12 Secure Device to Door as Shown, then Hang Door

Install Bottom Strike or Prepare Threshold

on Frame

See “Screw Chart” on page 2 for screw
types and sizes
A

385-A bottom strike 1/4″ undercut for 7847

CL STRIKE
1″

2″ Minimum clearance (with end cap removed) If device is too long for door, see “Cut Device”
on back cover

Center case
Trim (optional)

Threshold application

1-1/8″

3/8″ 9/16″

Latch case CL

1-1/8″

Stop

3/32″ R max.

2 3/4″
Flat threshold application
Remove material as necessary to accommodate 5/8″ latch bolt throw

Mark and prepare B
2 mounting holes and secure screws
(see page 3)
Mounting bracket flush

Device equal height to bottom of door on each end
C

11 Install Top Strike and Ratchet Release
338 Top strike

1/8″

5/8″

304L strike
Grout strike into floor

Hurricane applications use threshold with 304L bottom strike
Bottom latch

304L strike grouted into floor

Threshold

Roller side
Strike

H
See “Frame Preparation” on page 7 for cut-out and holes

338 Strike

13 Adjust Rods and Install Center Case Cover
See “Adjust Rods” on page 7 for adjustment procedure Remove protective film from pushbar

Roller side Away from door stop

Ratchet release

Center case cover

Spacer (use when frame

Shim

has no door stop)

(if needed)

J

I

See “Frame Preparation” on page 7 for holes

6

ADJUST RODS

1. Open door and release top latch bolt as shown (Figure 1). Top latch bolt
2. Loosen bottom locking screw (Figure 2).
3. Disconnect bottom vertical rod by removing bottom adjusting screw.
4. Loosen top locking screw.
5. Rotate top adjusting screw clockwise until top latch bolt is fully extended (Figure 1).
6. Check top latch bolt for deadlocking (latch bolt should not push in).
7. Turn top locking screw in. Do not over-tighten

Shown fully extended
Figure 1
Top adjusting
screw Top
locking screw
Figure 2
Bottom locking screw
Bottom adjusting
screw

8. Depress pushbar and release.
9. Make sure top latch bolt stays retracted as shown. Latch bolt retracted (flush with latch case)
Figure 3
10. Install bottom adjusting screw through bottom rod (Figure 2).
11. With top latch bolt still retracted, adjust bottom rod so latch bolt clears floor and bottom strike.
Bottom latch bolt (clears floor and strike)
Figure 4
12. Turn bottom locking screw in. Do not over-tighten. 13. Check device operation by opening and closing door
several times from the outside.
Redo adjustment procedure if : – Top latchbolt is not held retracted – Bottom latchbolt does not clear floor and bottom strike

FRAME PREPARATION

1″ min.

TOP STRIKE
6″ min.

RATCHET RELEASE
CL Latch case
7/16″

1/8″ Latch bolt CL RHR door
Edge of stop

CLDouble door application
CL Latch bolt LHR door 1-5/16″
21/32″15/16″

13/16″ 1-5/8″
13/32″ 1/4″ dia. 82° csk. x 3/8″ dia. in frame

Inside roller edge

1-7/8″

13/32″
Inside roller edge 15/16″