AB-6682
11
Manual Operation
To lock the damper shaft at a certain position:
Insert the accessory hexagon wrench to the hexagonal hole provided on the front surface of the damper actuator.
Rotate the wrench to ‘open’ direction (counterclockwise). When you reach the target position, reverse the rotation (clockwise) a
bit to hold the position.
To release the locked damper shaft:
Insert the accessory hexagon wrench to the hexagonal hole provided on the front surface of the damper actuator.
Rotate the wrench to ‘open’ direction until the lock is released. Once the lock is released, the actuator will shut off the damper by
the spring-return operation.
Figure 15. Manual operation
Setting of the Auxiliary Switches
This product is equipped with two SPDT switches. One is fixed at 5
°
and the other is adjustable between 25
°
and 85
°
. Set the
switches using the accessory hexagon wrench as shown in the figure below.
Figure 16. Auxiliary switch setting
