Technical Instructions OpenAir GCA Series Spring Return 142 lb-in Electronic Damper Actuator
Document No. 155-173P25
March 17, 2006
Page 6 Siemens Building Technologies, Inc.
Accessories NOTE: The control signal adjustment cannot be added in the field. Order the product number that
includes the option(s).
EA0477R2
(4 each)
Figure 2. Floor Mount Kit.
ASK71.1U: Allows foot mounting of OpenAir actuators.
Should be used for in-the-air stream applications, and
generally, anywhere a foot-mounted actuator can be
mounted. Kit contains:
•Crank arm for changing angular rotation into a linear
stroke.
•Support bearing ring to minimize side loading on the
actuator’s output bearing.
•Mounting bracket.
•Required mounting fasteners.
EA0476R2
Figure 3. Frame Mount Kit.
ASK71.2U: Allows mounting OpenAir actuators directly
to damper frame. Should be used with louvers and vents
and in applications where floor mount kit is not possible.
Kit contains:
•Crank arm for changing angular rotation into a linear
stroke.
•Support bearing ring to minimize side loading on the
actuator’s output bearing.
•Mounting bracket.
•Required mounting fasteners.
EA0495R1
Figure 4. Crank Arm Kit.
ASK71.3: Allows direct-coupled actuator to provide an
auxiliary linear drive. Crank arm kit can be used to
simultaneously drive a set of opposing or adjacent
dampers with single actuator. Kit includes:
•Crank arm to attach to the splined hub of the shaft
adapter.
•Other required mounting fasteners.
EA0494R1
Figure 5. Crank Arm Kit with
Mounting Bracket.
ASK71.4: Allows economical mounting of OpenAir
actuator to a variety of surfaces. Kit should be used in
applications where the actuator can be rigid-surface
mounted and linear stroke output is required. Kit
includes:
•Crank arm to attach to the splined hub of the shaft
adapter.
•Mounting bracket.
•Other required mounting fasteners.
EA0496R1
Figure 6. Tandem Mount Bracket.
ASK73.1: Bracket provides an extended anti-rotation pin
allowing two OpenAir actuators to directly drive a single
damper shaft.
EA0740R1
Figure 7. Tandem Mount Bracket.
ASK73.2U: Bracket provides an extended anti-rotation
pin allowing two OpenAir modulating actuator to directly
drive a single damper shaft. (For GCA16x Series only.)
