35
ED50LE
09-2021
DL4616-002
dormakaba ED50LE operator – Fine cover
Installation Instructions
Chapter 11
11.1 Set operator spring tension
11.1.1 Spring tension setting revolutions.
Door width
Inches
28
32
36
42
48
mm
711
813
914
1067
1219
Spring setting revolutions
ED50LE
10
10
14
16
18
11.1.2 Operator spring tension function.
1. Spring tension sets closing force on door.
2. Required spring tension is based on door width.
11.1.3 Spring tension adjustment.
1. Spring tension adjustment is factory set fully CCW,
no spring tension.
2. Spring must be pretensioned per Para. 11.1.1.
• Use 5 mm T-handle hex key (Fig. 11.1.2).
Clockwise - increases spring tension.
Counterclockwise - decreases spring tension.
CAUTION
A minimum of ten spring tension revolutions
are required to operate system.
11.1.4 Check door closing force
1. Para. 11.1.1 lists approximate spring tension settings.
2. Use pressure gauge to check door closing force at 2°
and adjust tension setting if necessary.
TIPS AND RECOMMENDATIONS
Reference Chapter 12, ANSI/BHMA standards
for door closing forces.
TIPS AND RECOMMENDATIONS
System checks spring tension during learning
cycle (Reference Setup and Troubleshooting
Instructions).
Learning cycle will be canceled if spring is
insufficiently tensioned; door will stop and
display will show a rotating "0" and an "F".
Fig. 11.1.1 Spring tension adjustment
Fig. 11.1.3 Door pressure gauge
1
Spring tension
adjustment
Fig. 11.1.2 5 mm T-handle hex key
11 ED50LE Operator spring tension
1
