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Siemens OpenAir GDE Series Technical Instructions

Electric damper actuator
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OpenAir™ Electric Damper Actuator
GDE/GLB Series
Non-spring Return Rotary
24 Vac 3-position Control
Product Numbers
These OpenAir direct coupled 24 Vac non-spring return rotary electric actuators are
designed for 3-position (floating) control of dampers.
Compact, lightweight design
Manual override
Standard and plenum models available
Feedback potentiometer models available
C-UL and UL listed; plenum versions also CE certified
Independently adjustable dual auxiliary switches available
These actuators are used in constant or variable air volume installations for control of
HVAC dampers requiring up to 44 lb-in (5 Nm) or 88 lb-in (10 Nm).
Plenum Cable
44 lb-in (5 Nm)
Standard Cable
88 lb-in (10 Nm) Plenum Cable
Technical Instructions
Document No. 155-188P25
Table 1.
(24 piece bulk pack)
(24 piece bulk pack)
Siemens Building Technologies, Inc.
Rev. 3, August, 2001
Dual Auxiliary


Table of Contents

Summary of Contents for Siemens OpenAir GDE Series

  • Page 1 GDE132.1P GDE136.1P Plenum Cable GDE131.1P/B — — (24 piece bulk pack) 44 lb-in (5 Nm) GDE131.1U — — Standard Cable GDE131.1U/B — — (24 piece bulk pack) 88 lb-in (10 Nm) Plenum Cable GLB131.1P GLB132.1P GLB136.1P Siemens Building Technologies, Inc.
  • Page 2: Specifications

    -22 to 130°F (-30 to 55°C) storage and transport -22 to 140°F (-30 to 60°C) Ambient humidity (non-condensing) 95% R.H. UL listed to UL873 Agency certification C-UL certified to Canadian Standard C22.2 No. 24-93 Page 2 Siemens Building Technologies, Inc.
  • Page 3 Conduit adapter ASK78.3U Shaft insert for use with 3/8-inch (8 to 10 mm) diameter shafts. Package of ten. NOTE: Factory installed 1/2-inch guide must be removed prior to installation. Shaft insert Siemens Building Technologies, Inc. Page 3...
  • Page 4: Actuator Components

    9. Auxiliary switch B 10. Position indicator 11. Adjustment lever with locking screw (3 mm hex) 12. Set screw for mechanical range stop (3 mm hex) Figure 2. Parts of the Actuator. 13. Mounting bracket Page 4 Siemens Building Technologies, Inc.
  • Page 5: Operation

    A suggested safety factor is 0.80 (or 80% of the rated torque). 4. Select the actuator type from Table 2. Siemens Building Technologies, Inc. Page 5...
  • Page 6: Mounting And Installation

    2. Make adjustments to the damper position. 3. Slide the red manual override knob MANUAL toward the front of the actuator. Once power is restored, the actuator AUTO returns to automated control Figure 5. Manual Override. Page 6 Siemens Building Technologies, Inc.
  • Page 7 EN61558. They must be rated for 100% duty cycle. • Overcurrent protection for supply lines is maximum 10A. Direction of damper If the damper blades turn counterclockwise to open (CCW), reverse the 6 (violet) and rotation 7 (orange) wires at the controller. Siemens Building Technologies, Inc. Page 7...
  • Page 8 Switch B Common Black Switch B N.C. Black Switch B N.O. Black Feedback Black Potentiometer 0 to 100% P1 - P2 Feedback Black Potentiometer Common Feedback Black Potentiometer 100 to 0% P3 - P2 Page 8 Siemens Building Technologies, Inc.
  • Page 9 A. 4. Stop applying a control signal to wires 1 (red) and 6 (violet). 5. Connect wires S1 and S2 to the DMM. The DMM should indicate an open circuit or no resistance. Siemens Building Technologies, Inc. Page 9...
  • Page 10 6. Apply a control signal (24 Vac) to wires 1 (red) and 7 (orange). The DMM should indicate contact closure as the actuator shaft coupling reaches the setting of switch B. WARNING: Service Do not open the actuator. If the actuator is inoperative, replace the unit. Page 10 Siemens Building Technologies, Inc.
  • Page 11 Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and models as design improvements are introduced. OpenAir is a trademark of Siemens Building Technologies, Inc. Other product or company names mentioned herein may be the trademarks of their respective owners.

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Openair glb series

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