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ED900 09-2021DL4617-001
dormakaba ED900 Setup and Troubleshooting Instructions Chapter 10
System setup for single door installation
. Set ED operator spring tension
.. Operator spring tension function.
. Spring tension sets closing force on door.
. Required spring tension is based on door width.
.. Set spring tension.
. Using mm T-handle hex ky, set spring tension per
Table ...
Clockwise - increases spring tension.
Counterclockwise - decreases spring tension.
CAUTION
A minimum of ten spring tension revolutions
are required to operate system.
CAUTION
Any change to spring tension setting requires a
new learning cycle!
Fig. 10.1.1 Spring tension adjustment
Door width
Inches
mm
Spring setting revolutions
ED
Final spring tension setting dependent on door weight
and door width.
TIPS AND RECOMMENDATIONS
System checks spring tension during learning
cycle (Chapter 10).
Learning cycle will be canceled if spring is
insufficiently tensioned; door will stop and
display will show a rotating "" and an "F".
.. Check door closing force.
. Table .. lists approximate spring tension settings.
. Use pressure gauge to check door closing force at °
and adjust tension setting if necessary.
Fig. 10.1.3 Door pressure gauge
TIPS AND RECOMMENDATIONS
Reference Chapter 16 for ANSI/BHMA
standards for door closing forces.
1 Spring tension
adjustment
Fig. 10.1.2 5 mm T-handle hex key
1
Table 10.1.1 Spring tension adjustment revolutions
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