24
ED50/ED100/ED250
09-2021
DL4617-003
dormakaba ED50/ED100/ED250 OHC Header
Setup and Troubleshooting Instructions
Chapter 11
11.1 Set operator spring tension
11.1.1 Operator spring tension function.
1. Spring tension sets closing force on door.
2. Required spring tension is based on door width.
11.1.2 Operator spring tension access.
1. Operator Spring tension adjustment is accessed
through hole in bottom of header.
11.1.3 Spring tension adjustment factory setting.
1. Spring tension adjustment is factory set fully CCW,
no spring tension.
CAUTION
A minimum of ten spring tension revolutions
are required to operate system.
Fig. 11.1.1 Spring tension adjustment example
1
OHC header
2
ED50/ED100/
ED250 operator
3
Header access
hole, spring tension
adjustment
4
T handle hex key,
5 mm
2
3
4
1
11 System setup for single door installation
11.1.4 Set operator spring tension.
1. Set operator spring tension revolutions based on
operator type and door width outlined in
Table 11.1.1.
Door width
Inches
36
42
48
mm
914
1067
1219
Spring setting revolutions
ED50
10
14
18
ED100
10
14
18
ED250
10
14
18
NOTICE
Final spring tension setting based on door width
and weight.
Table 11.1.1 Operator spring tension setting revolutions
