Data Sheet for Product

Technical Instructions OpenAir™ GBB/GIB Series Non-spring Return, 24 Vac, Floating Control
Document No. 155-177P25
August 6, 2019
Page 10 Siemens Industry, Inc.
Mechanical range
adjustment, continued
Counterclockwise-to-open:
a. Insert the shaft adapter to the left as close as possible to the raised stop.
b. Hold down the PUSH button and rotate the shaft adapter to the right until it
stops.
c. Release the PUSH button.
d. If the shaft adapter is not resting against the right raised stop, remove the
adapter and insert it against the right stop.
e. Place the position indicator to 0 on the inside scale.
4. Determine the angle of rotation for the damper blade shaft. Subtract that amount
from 90°.
5. Remove the shaft adapter and insert it with the position indicator pointing to the
mark on the scale calculated in the previous step. See Figure 20.
6. Attach the clip.
7. Rotate the damper blade shaft to its 0 position.
8. Return the actuator to the damper shaft and tighten the shaft adapter to the damper
shaft.
Figure 20. Mechanical Range Adjustment.
Reversing the position
indicator
Reverse the position indicator so that the counterclockwise 0 to 90 scale is visible.
Figure 21. Position Indicator.