Siemens OpenAir GEB Series Technical Instructions page 8

Technical Instructions
Document Number 155-318P25
May 19, 2014
Manual Override
Mechanical Range
Adjustment
Page 8
OpenAir GEB Non-Spring Return, 24 Vac,132 lb-in, Rotary Electronic Damper Actuators
To move the damper blades
and lock the position without
power present:
1. Hold down the PUSH
button.
2. Make adjustments to the
damper position.
3. Release the PUSH button.
Once power is restored, the
actuator returns to automated
control.
The angular rotation is adjustable between 0
and 90° at 5-degree intervals. The range of
shaft movement is limited by mounting the shaft
adapter:
1. Loosen the shaft adapter from the damper
shaft and remove the actuator from the
damper shaft.
2. Remove the clip and shaft adapter from the
actuator.
Figure 10.
3. Return the actuator gear train to the "0" position using the steps that follow for the
clockwise or counterclockwise damper shaft rotation.
Clockwise to open:
a. Insert the shaft adapter to the right as close as possible to the raised stop. See
Figure 10.
b. Hold down the PUSH button and rotate the shaft adapter to the left until it stops.
See Figure 11.
c. Release the PUSH button.
d. If the shaft adapter is not resting against the left raised stop, remove the adapter
and insert it against the left stop.
e. Place the position indicator to the "0" position on the outside scale.
See Figure 12.
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.
Figure 8. Manual Override.
Figure 11
Figure 9.
Figure 12.
Siemens Industry, Inc.