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Siemens OpenAir GDE Series Technical Instructions page 13

Electric damper actuators, non-spring return rotary 24 vac - modulating control 0 to 10 vdc
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OpenAir Non-Spring Return Rotary Electric Damper Actuator
24 Vac – Modulating Control
Service
Dimensions
7/16
min. 4 inch
(11)
100 mm
min. 1/4 inch
6 mm
15/16
(94)
2-3/8
(60)
Figure 22. GDE/GLB Actuator and Mounting Bracket Dimensions in Inches (mm).
Siemens Building Technologies, Inc.
Check the Auxiliary Switch B:
1.
Set the DMM dial to ohms (resistance) or continuity check.
2.
Connect wires S4 and S6 to the DMM. The DMM should indicate open circuit or no
resistance.
3.
Apply a full-scale input signal to wire 8 (gray). The DMM should indicate contact closure
as the actuator shaft coupling reaches the setting of switch B.
4.
Connect wires S4 and S5 to the DMM. The DMM should indicate open circuit or no
resistance.
5.
Stop the signal to wire 8 (gray). The DMM should indicate contact closure as the
actuator shaft coupling reaches the setting of switch B.
WARNING:
Do not open the actuator.
If the actuator is inoperative, replace the unit.
1/32
(0.8)
5-7/16
(137)
3-7/16
min. 8 inch
(87)
200 mm
min. 2-3/8 inch
60 mm
min. 3/8 inch
10 mm
90
5/32
(4)
min. 1 inch
25 mm
13/16
(21)
2-3/4
(70)
Technical Instructions
Document Number: 155-187P25
November 30, 2005
1/2
25/32
(12)
(20)
7-1/16
6-5/8
(180)
(168)
Page 13

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