75
ED250
08-2018
DL4614-070
dormakaba ED250 IG Installation Instructions
Chapter 24
"D" door width,
inches
"W" door weight, pounds
100
125
150
175
200
36
3.0 s
3.5 s
3.5 s
3.0 s
3.0 s
42
3.5 s
4.0 s
4.0 s
4.5 s
4.5 s
48
4.0 s
4.5 s
4.5 s
5.0 s
5.5 s
Minimum opening time to backcheck or 80 degrees (whichever occurs first).
Minimum closing time from 90 degrees to latchcheck or 10 degrees (whichever occurs
first).
24.1.2 A156.19, Table I: Minimum opening and closing times.
24.1.3 A156.19, Table II: Total opening time to 90 degrees.
Backcheck at 60°
Backcheck at 70°
Backcheck at 80°
Table I plus 2 s
Table I plus 1.5 s
Table I plus 1 s
If door opens more than 90°, it shall continue at the same rate as backcheck speed.
Backcheck occurring at a point between positions shall use lowest setting.
24.1.4 Other door weights and widths
Closing time T = (D
W
)/188
D = Width of door in inches.
W = Weight of door in pounds.
T = Closing time to latch check in seconds.