| Norton Series UNI-8301 Unitrol Door Controls
Parallel Arm Installation
Catalog Numbers
UNITROL CATALOG
NUMBERS |
NORMAL POWER RANGE |
ACCESSIBILITY CODE
POWER RANGE |
x SPECIFY DOOR WIDTH |
STOP ONLY ARM |
HOLD-OPEN ARM |
STOP ONLY ARM |
HOLD-OPEN ARM |
UNI-8301 |
UNI-8301H |
UNI-8301BF |
UNI-8301BF-H |
Dimensional Data
DOOR WIDTH INCHES
(METERS) |
DIMENSIONAL
INFORMATION SHOWN IN INCHES(MILLIMETERS) |
R
MINIMUM TOP RAIL OF DOOR |
S
MINIMUM TOP RAIL CLEARANCE |
T
TEMPLATE POSITION FOR HOLD-OPEN AT
LISTED ANGLE OR DEAD STOP AT LISTED ANGLE PLUS 5° |
W
ARM EXTENSION BEYOND CLOSER |
WITHOUT DROP PLATE |
WITH DROP PLATE |
85° |
90° |
95° |
100° |
105° |
110° |
28-32 (0.70-0.80) |
4-3/4 (121) |
2-1/2 (64) |
5-3/4 (146) |
4-5/8 (117) |
4 (102) |
3-1/2 (89) |
3-1/8 (79) |
2-3/4 (70) |
2-3/8 (60) |
8-3/8 (213) |
33-41 (0.85-1.00) |
4-3/4 (121) |
2-1/2 (64) |
5-3/4 (146) |
7 (176) |
6-1/4 (154) |
5-3/4 (146) |
5-1/4 (133) |
4-3/4 (121) |
4-3/8 (111) |
9-7/8 (251) |
42-48 (1.05-1.20) |
4-3/4 (121) |
2-1/2 (64) |
5-3/4 (146) |
9-1/4 (235) |
8-3/8 (213) |
7-3/4 (197) |
7-1/8 (181) |
6-5/8 (168) |
6-1/4 (159) |
11-1/4 (286) |
All dimensions are for reference only.
Closer Power Adjustment
The following charts are a guide to set the Unitrol door
closer power. Installer must further adjust the closer to accommodate door, frame, degree
of opening, environment or "Code" requirements. Closer factory set at minimum
power (zero turns).
Series UNI-8301--Normal Power Range Control
DOOR SIZE
WOOD OR METAL
INCHES (METERS) |
POWER ADJUSTMENT
FULL 360° CLOCK WISE TURNS OF ADJUSTMENT NUT |
UNITROL CATALOG
NUMBER |
INTERIOR |
EXTERIOR |
STOP ONLY ARM |
HOLD-OPEN ARM |
28-32
(0.70-0.80) |
4 |
7 |
UNI-8301 |
UNI-8301H |
33-41
(0.85-1.00) |
7 |
8 |
42-48
(1.05-1.20) |
9 |
12 |
MAXIMUM TURNS
AVAILABLE 15 |
Closer power can be adjusted to conform to
conventional sizing requirements outlined in ANSI A156.4-1986, Standards for Door Controls
- Closers.
Series UNI-8301BF Accessibility Code Power Range
DOOR SIZE
WOOD OR METAL
INCHES (METERS) |
POWER ADJUSTMENT
FULL 360° CLOCK WISE TURNS OF ADJUSTMENT NUT |
UNITROL CATALOG
NUMBER |
INTERIOR |
EXTERIOR |
STOP ONLY ARM |
HOLD-OPEN ARM |
28-32
(0.70-0.80) |
3 |
5 |
UNI-8301BF |
UNI-8301BF-H |
33-41
(0.85-1.00) |
6 |
8 |
42-48
(1.05-1.20) |
8 |
11 |
MAXIMUM TURNS
AVAILABLE 15 |
Closer power can be adjusted to conform to the
requirements outlined in ANSI A117.1-1980, Specifications for Making Buildings and
Facilities Accessible To and Usable By Physically Handicapped People.
Accessories
For arm mounting accessories see page UNITROL-36.

Narrow Top Rail -- #8148 Drop Plate: For use where a
narrow top rail prevents the closer from being mounted directly to the door surface. This
Drop Plate can be used to mount the door closer on a top rail as narrow as 2-1/2"
(64mm) in height.

1-3/4" high x 2-1/8" deep x 13" long (44mm x
54mm x 330mm)
Molded Slim Style Cover -- #8200P: Standard. Available
in any of the "Sprayed Finishes" listed on page UNITROL-3.
Cover fastens to closer with two attaching screws, included. |