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Final adjustment and regulating procedures, Caution, 2468 unit – SARGENT 2408 Fire Guard Electromechanical Closer-Holder User Manual

Page 2: Companion unit, Smoke detector unit

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2

6

Adjust hold open angle by adjusting arm length:

Range of 85° to 115° is obtainable.
With roller assembly in hold open setting, open door
and slide insert into main arm for desired hold open.
Secure arms with 9/64" hex screw.

Main Arm

Insert

A7694C

3

Final Adjustment and Regulating Procedures

DOOR WIDTH EXTERIOR DOORS

INTERIOR DOORS

(INCHES)

30-36

FACTORY SET

FACTORY SET

36-42

TURN nut 1-4

TURN nut 1-3

42-48

TURN nut 7-9

TURN nut 4-6

Adjust power to allow door to close and latch.

1/8” HEX SOCKET

WRENCH

BACKCHECK

RANGE

DELAYED ACTION

RANGE

CLOSING SPEED

RANGE

LATCHING SPEED

RANGE

Install cover as shown.

Closing and latching speeds:
Turn valves clockwise to slow down or counterclockwise
to speed up door movement.

Backcheck:
Turn valve clockwise to increase or counterclockwise
to decrease.

CAUTION: SET VALVE FOR SLIGHT CUSHIONING

EFFECT. CLOSER CAN BE DAMAGED IF THE CHECKING

ACTION IS TOO ABRUPT. NEVER USE THE BACKCHECK

AS A DOOR STOP. ALWAYS USE A DOOR STOP TO STOP

THE DOOR.

Delayed action feature (optional feature):
When provided, turn valve clockwise to slow down or

counterclockwise to speed up door movement.

Adjusting door to close due to high draft conditions may exceed ADA
Standards. Consult local ordinances when fire doors are involved.

NUMBER OF TURNS OF SPRING POWER ADJUSTING NUT

Decrease

Increase

Adjusting Nut

5/8"

Insert is removable.
Place in unused
opening.

To adjust holding tension:

• Loosen 2.5mm lock down screw.
• Turn knob for desired tension.
• Retighten 2.5mm lock down

screw.

• Install cover plate with 3 screws

as shown in step 4.

+

Holding tension
adjustment

2.5mm hex lock
down screw

CAUTION

• Wire stand alone unit to appropriate power supply and fire alarm.

Earth ground wire connects to green wire

• Refer to data sticker for proper input voltage and current specifications
• Energize power supply. Current draw of .1 AMP per unit
• Open door to hold open point. Door should hold open
• Depress Holder On/Off Switch. Door should close and latch
• Depress Holder On/Off Switch to reactivate solenoids on both units
• Adjustment of spring power may be necessary to ensure proper latching

1. DISCONNECT ALL POWER BEFORE BEGINNING INSTALLATION

TO PREVENT ELECTRICAL SHOCK AND EQUIPMENT DAMAGE.

2. INSTALLER MUST BE A TRAINED, EXPERIENCED

SERVICE PERSON.

3. ALL WIRING MUST COMPLY WITH APPLICABLE LOCAL

ELECTRICAL CODES, ORDINANCES AND REGULATIONS.

4. MAXIMUM WIRE SIZE IS 18AWG.

12-2468 Unit

Do not use

GND slot of terminal block. Use Green Grounding wire.

9- Companion Unit

B

la

c

k

B

la

c

k

Wire nut

12- Smoke

Detector Unit

Yellow

Red

Black

Holder On/Off switch

Smoke detector unit

Red reset switch

Yellow

Circuit board 120VAC or
24VAC/DC (120VAC shown)

12 11

14

9

7

3

Field wiring by others

Field wiring by others

Companion unit is designed to work with
smoke detector unit 12-2468 only.

Wire companion unit to smoke detector
unit as shown on wiring diagram

Do not disconnect any existing wires on
smoke detector unit’s terminal strip

Energize power supply

Open doors to hold-open point. Doors should hold open

Depress Holder On/Off Switch on circuit board.
Doors should close and latch

Adjustment of spring power may be
necessary to ensure proper latching

Remove jumper and install
output connector assembly
(Part No. 63-2868) required
for this option

User supplied normally
closed momentary switch

Wiring Optional Remote Push Button

INSTALLER: LEAVE INSTRUCTIONS WITH BUILDING OWNER

Hex screw

Wire nut

12- Smoke

Detector Unit

Yellow

Red

Black

Holder On/Off switch

Smoke detector unit

Red reset switch

Yellow

Data

sticker

Terminal strip for
power input wiring

Circuit board 120VAC or
24VAC/DC (120VAC shown)

12 11

14

9

7

3

Green grounding wire

Copyright © 2008, Sargent Manufacturing Company, an ASSA ABLOY Group company. All

rights reserved. Reproduction in whole or in part without the express written permission of

Sargent Manufacturing Company is prohibited.

A7694C

Copyright © 2008, Sargent Manufacturing Company, an ASSA ABLOY Group company. All

rights reserved. Reproduction in whole or in part without the express written permission of

Sargent Manufacturing Company is prohibited.