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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 specified 

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

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