Installation DFA 127
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Adjustment of the initial spring tension according EN 4 to EN 6
Depending on the width of the door leaves, the spring force must be adjusted corresponding
EN 1154 in the range of EN 4 to EN 6. The adjustment range can be taken from the table in
chapter
Door leaf weights and door widths
based on the width of the door leaf. Wind loads,
under/over-pressure and other environmental conditions must be taken into account during
the adjustment.
The door operator is set to a minimal spring force on EN 4 in the factory. This is appropriate
for door leaf widths from 950 to 1100 mm. If the width of the door leaf is 1100 mm, for ex-
ample, an additional maximum permissible door leaf weight of approx. 160 kg can be se-
lected.
Turning the adjusting screw (SW13) clockwise
increases the initial spring tension.
The white marking in the vision panel relates to
the scale underneath.
▪ The correct setting of the initial spring
tension is necessary for the proper open-
ing of the door without the mains supply.
WARNING
Closure of the door with insufficient or excessive closing force.
• Contusions and bruises through door leaves, no locking in case of fire.
Set the spring tension according regulations (see table in chapter:
Door leaf
weights and door widths)
11.4
Summary of Contents for DFA 127
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Page 100: ...Drawings 25 102 127108955 V1 1 100 102 Wiring diagram 25 2 ...
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