Assa Abloy SARGENT 278 Series User manual

A7321D
Copyright © 2009, 2019, 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.
1-800-438-1951 • www.sargentlock.com
Arm Models
278 Series
Concealed Door Closer
OE, Regular
HE, Hold Open Extended
Adjustable (Sizes 1-6)
Ce produit peut vous exposer au plomb qui, dans l’état de la Californie,
est reconnu pour causer le cancer, des anomalies congénitales ou d’autres
problèmes de reproduction. Pour plus d’informations, visitez:
www.P65warnings.ca.gov.
This product can expose you to lead which is known to the state of
California to cause cancer and birth defects or other reproductive harm.
For more information go to www.P65warnings.ca.gov.
WARNING
Right Hand Door - RH
Left Hand Door - LH
Foot
Assembly
Main Arm &
Swivel Assembly
Swivel Arm
Screw
Foot
Dial
Dial Screw
HE Arm
Mounting Screw
Screw
Pack
1/8" Hex
Wrench
278 Case
278
Faceplate
Model ID:
Case / Arm / Hand
Manufacture Date:
Week / Year
Legacy Friction Hold Open Arm
Note: Legacy FHO
arm has installation
orientation.
See 80-9300-0005-000,
available online.
Included Components
(See page 2 for mounting hardware)
To Identify Your Closer:
Tools Needed
To Determine Your Hand of Door:
TO DETERMINE
HAND OF
YOUR DOOR:
LEFT
HAND
DOOR
RIGHT
HAND
DOOR
Right Hand
Reverse
Left Hand
Reverse
• ADA compliant
• Semi Concealed: Closer body concealed
in frame head and closer arm attached
to surface of door face.
• Removable stop required (supplied by
frame manufacturer).
• Closer faceplate furnished.
• Handed - same hand as door.
• Closing force adjustable 1 thru 6.
• Suitable for interior doors up to 5' wide
• Suitable for exterior doors up to 4' wide
• Closers are factory preset for 3' door width
unless specied otherwise at time of order.
• Auxiliary door stop required.
• Reinforcements required for metal doors
and frames. 7 gauge for frame and 12
gauge for door recommended.
• Dimensions are given in inches
(millimeters).
ATTENTION:
An incorrectly installed or improperly adjusted door closer can cause property damage or
personal injury. These installation instructions should be followed to avoid the possibility of
misapplication or misadjustment.
OE Regular or Legacy Fusible Link Arm
See template A7322, available online.
Approved 2020-01-21

2
A7321D
Copyright © 2009, 2019 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.
1-800-438-1951 • www.sargentlock.com
Use provided hex wrench to turn valves.
NEVER force valves out of closer.
NEVER completely close backcheck valve.
NEVER use backcheck as a door stop.
Door must be open (only a few inches) to
adjust spring closing power. Use 3/16" hex
wrench to turn screw. Do not use a power
drill. Warranty will be void.
Closer Adjustments
278 Concealed Closer
If interior doors do not have to comply with
ADA requirements, exterior door settings
are recommended. Where strong drafts
exist, increase spring power as needed by
turning spring adjustment screw clockwise.
If necessary, reduce spring power by turning
screw counter clockwise.
*Mounting Hardware Door or Frame Drill
Case and Foot:
#12 x 1-1/2 Phillips Flat Head Self Drilling Tap-
ping Screw Wood 3/32" (2.38mm)
Case and Foot:
#12 x 1-1/2 Phillips Flat Head Wood Screw
Case and Foot:
#12-24 x 3/4 Phillips Flat Head Machine Screw Metal Drill #16 (.177)
Tap 12-24
Foot:
Mortise Nut
(optional)
Hollow Metal 1/4" (6.00mm) thru
3/8" (9.50mm) door face opposite to closer
Aluminum or Wood 3/8" (9.50mm) thru
* Security Torx screws supplied upon request, not shown
** #8-32 x 1/4 Phillips Flat Head Machine screw used for Closer Faceplate or Removable Stop, not shown
Mortise Nut and Screw Detail
Appropriate mortise nuts and screws will be supplied based on door
thickness.
Door construction must provide a bridge type reinforcement to prevent
the door rail from collapsing when screws are tightened.
If distance between door stop and center of mortise nut head is less than
7/8" (22mm), stop must be cut to clear head or head must be recessed.
Number of Spring Power Nut Turns From
Factory Setting (Use as Guide ONLY)
Door Width Exterior Interior
24" Factory Set
1-5 CCW
30" 1-5 CW
32"
36" 5-8 CW
40"
42" 8-13 CW Factory Set
44"
46" 13-15 CW 1-5 CW
48"
over 48" up to 18 CW 5 CW & up
Spring
Adjustment
Latching
Speed
Backcheck
Closing
Speed
Approved 2020-01-21

3
A7321D
Copyright © 2009, 2019, 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.
1-800-438-1951 • www.sargentlock.com
x4
x4
1. Prepare door and frame.
3a. Remove dial
from foot.
3b. Install foot assembly to door.
278 Concealed Closer Installation (Left Hand Shown)
Dial DOWN
Left and Right Hand
Arm Type Dim A Dim B Max Door
Opening
Degree of Hold
Open or Stop
HE 7-7/16"
(189)
2-1/2"
(63.5) 180° 80° - 180°
OE 6-3/4"
(171)
2"
(51) 180° -
NOTES:
1. * Dimension is taken from hinge edge of door.
Butt, offset, center hung, swing clear and invisible.
2. **Holes in faceplate to attach removable stop if
required. Stop thickness 5/8" (16) max.
3. Use screws provided or use mortise nuts when
required. See chart on page 2.
4. See Data Sheet A7322 for more template details.
2. Mount case inside prepared frame.
LH and RH:
Spring Adjustment Screw
AWAY from hinge
Faceplate shown.
Removable stop
optional.
Approved 2020-01-21

A7321D
Copyright © 2009, 2019, 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.
Patent pending and/or patent: www.assaabloydss.com/patents
SARGENT Manufacturing Company
100 Sargent Drive
New Haven, CT 06511 USA
800-727-5477
www.sargentlock.com
4. Attach Main arm as shown.
6. Set Hold Open.
You’ve now installed the 278 Concealed Closer.
🛑 Go to page 2 for closer adjustments.
Keep door open in position
until dial screw secures dial.
1st
3rd3rd 2nd
RH:
Clockwise
to tighten.
LH:
Counter clockwise
to tighten.
2nd
1st
2nd
RH: Position index at 1
LH: Position index at 3
Closer will not operate
properly if main arm is
not indexed correctly.
5. Connect arms, preload spring
and tighten screw.
1st
2nd
3rd
Rotate elbow
until Main arm is
perpendicular to frame.
Rotating Main arm
preloads closer
spring power.
Secure arms with
Swivel Arm Screw.
1st
View from oor looking up.
Approved 2020-01-21