Manual Override - Siemens OpenAir GCA Series Technical Instructions

Technical Instructions
Document No. 155-173P25
May 19, 2014

Manual override

Mechanical
Range
Adjustment
Page 14
Rotating
Always turn the key in the direction of the arrow.
CAUTION:
When engaging the gear train lock pin, be careful to turn only about five
degrees until you hear a click or meet slight resistance. Turning too far will
strip the lock pin.
To release manual override, either restore power and send a control signal; or when
power is absent, insert the 3 mm hex key in the override opening, turn the key in the
direction of the arrow and remove the key.
The angular rotation is adjustable between 0 and 90° at five-degree intervals. To limit
the range of shaft movement, remove the locking clip and self-adjusting shaft adapter.
Rotate the damper blade shaft to its failed position. Rotate the shaft coupling to the
desired position. Insert the shaft adapter into the actuator and fasten it with the locking
clip. See Figure 20.
Figure 20. Mechanical Range Adjustment.
OpenAir™ GCA Series Spring Return 160 lb-in Electronic Damper Actuator
Locking in place
Figure 19. Manual Override.
Releasing
when power is absent
Siemens Industry, Inc.