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Installation Instructions

ManualsBrandsSiemens ManualsDamper actuatorsOpenAir GCA Series Spring Return 160 lb-in Electronic Damper Actuators Technical Instructions
1234567
Document No. 129-404
Installation Instructions
April 13, 2020
Siemens Industry, Inc. Page 3 of 7
Installation, Continued
Figure 4. Shaft Length and Proper Shaft Adapter Location.
Figure 5. Close the Damper.
Figure 6. Place the Actuator on the Shaft.
Figure 7. Fasten the Mounting Bracket.
NOTE: With an oversized shaft adapter (b’), tighten the middle
screw so that the shaft is in the center of the shaft
adapter opening.
Figure 8. Fasten the Shaft Adapter to the Damper Shaft.
NOTE: If the damper
fail-safe position is
open, change the
actuator preload from
the factory-set 5° to
85°. See Manual
Override.