| A
Latch Speed ............................................................... |
| |
Latch control valve
allows extra speed to operate in the final stage of door closing
to overcome the resistance of the door latch and allows the
door to close without slamming. |
| B
Sweep Speed ............................................................. |
| |
The sweep control
valve adjusts the speed of the door during the main are of the
closing action to suit the individual needs. |
C
Delayed Action (DA, 180-70 )
.................................. |
| |
This option is
particularly useful at hospitals and homes for the aged.
This function allows convenient passing through the opening,
slowing down the closing speed for a preset period when the
door opens beyond 70 |
D
Back Check (BC, 90-180 )
....................................... |
| |
Back Check control
valve provides you with a temporary stop function between 90
to 180 to help prevent
damage to door and/or wall in case the door opens with excessive
force.
Door stops may still be needed. |
| E
Spring Power Adjustment Bolt ............................... |
| |
This haxagon bolt
adjusts the door opening and closing power from 1 to 5 based
on the door weight. |
