Table of Contents
Advertisement
Quick Links
OpenAir™
GEB Series Enhanced Rotary
Non-spring Return Damper Actuators
Description
Features
Application
Warning/Caution Notations
The OpenAir direct-coupled, 24 Vac/Vdc, non-spring return electronic actuator
is designed for modulating and combined on/off and floating control of building
HVAC dampers.
•
Brushless motor technology with stall protection
•
Unique self-centering shaft coupling
•
Manual override
•
177 lb-in (20 Nm) torque
•
5° preload as shipped from factory
•
Mechanical adjustable span between 0 and 90 degrees
•
Operating voltage 24 Vac/Vdc; or 100 to 240 Vac
•
Models with independently adjustable, dual auxiliary switches available
•
Built-in 1/2-inch conduit connection
•
UL and cUL listed, CE certified
Used in constant or variable air volume installations for the control of HVAC dampers
requiring up to 177 lb-in (20 Nm) torque.
WARNING:
CAUTION:
Technical Instructions
Document No. A6V12029156
Personal injury or loss of life may occur if you do not follow a
procedure as specified.
Equipment damage may occur if you do not follow a
procedure as specified.
December 16, 2021
Siemens Industry, Inc.
Advertisement
Table of Contents
Related Manuals for Siemens OpenAir GEB141.1P
Summary of Contents for Siemens OpenAir GEB141.1P
- Page 1 177 lb-in (20 Nm) torque. Warning/Caution Notations WARNING: Personal injury or loss of life may occur if you do not follow a procedure as specified. Equipment damage may occur if you do not follow a CAUTION: procedure as specified. Siemens Industry, Inc.
-
Page 2: Specifications
Maximum output current Function Running torque 177 lb-in (20 Nm) Maximum torque 310 lb-in (35 Nm) Nominal runtime for 90° opening or closing 150 seconds Nominal angle of rotation 90° Maximum angular rotation 95° +/- 2° Page 2 Siemens Industry, Inc. - Page 3 Switch B 0 to 90° with 5° intervals Recommended range usage 45 to 90° Factory setting 85° Switching hysteresis 2° Feedback potentiometer (GEB 142.1U) 0 to 1000 ohm <10 mA Voltage UL/cUL-Class 2 (SELV/PELV for CE) Siemens Industry, Inc. Page 3...
-
Page 4: Actuator Components
9. Manual override 10. Auxiliary switches A & B 11. Position indicator 12. Self centering shaft adapter Figure 1. Non-Spring Return Actuator 13. 1/2-inch NSPT conduit Components. connection 14. Shaft adapter locking clip 15. Position indicator adapter Page 4 Siemens Industry, Inc. - Page 5 NEMA 3R requirements (a degree of protection against rain, sleet, snow, and damage from external ice formation) when installed with ASK75.3U Weather Shield and outdoor-rated conduit fittings in the vertical position. Figure 5. NEMA 3RWeather Shield. Siemens Industry, Inc. Page 5...
-
Page 6: Service Parts
Overload protection In the event of a blockage in the damper, the actuator is overload protected over the full range to prevent damage to the actuator. Life expectancy An improperly tuned loop will cause excessive repositioning that will shorten the life of the actuator. Page 6 Siemens Industry, Inc. -
Page 7: Mounting And Installation
1. Hold down the PUSH button. 2. Make adjustments to the damper position. 3. Release the PUSH button. Once power is restored, the actuator returns to automated control. Figure 8. Manual Override. Siemens Industry, Inc. Page 7... - Page 8 See Figure 12. 6. Attach the clip. Rotate the damper blade shaft to its 0 position. Return the actuator to the damper shaft and tighten the shaft adapter to the damper shaft. Page 8 Siemens Industry, Inc.
- Page 9 Figure 13. The Minimum and Maximum Control Signal Adjustment. Example: Open the actuator from 0 to 50% (45°) using a control signal of: Umin= 2V to Umax= 10V. Calculating the valve of U: − − min) Working angle rotation Siemens Industry, Inc. Page 9...
- Page 10 Switch B 85° NOTE: Use the long arm of the "†" to point to the position of switch A. Use the narrower tab on the red ring to point to the position of switch B. Page 10 Siemens Industry, Inc.
-
Page 11: Dip Switch Functionality
Positioning Control Signal: (GEB161.1) • Alternative settings: 2-10 Vdc 0-10 Vdc • Factory setting: 0-10 Vdc Positioning Control Signal: (GEB164.1) • Alternative settings: 2…: 2-10 Vdc output voltage 2…. 0…. 0...: 0-10Vdc output voltage Factory setting: 0 Siemens Industry, Inc. Page 11... - Page 12 Use safety transformers per EN61558 with double isolation, designed for 100% duty-cycle for supplying SELV or PELV circuits. • Over-current protection for supply lines is maximum 10A. CAUTION: Do not parallel GEB13x actuators with any other type of actuator. Page 12 Siemens Industry, Inc.
- Page 13 DC 0 to 10V GEB164.1U. Figure 19. 24 Vac/Vdc Figure 20. 100 to 240 Vac Continuous control 0 to 10V 3-position control GEB16x.1U/1P. GEB341.1U. Figure 21. 100 to 240 Vac Modulating control DC 0 to 10V GEB361.1U. Siemens Industry, Inc. Page 13...
- Page 14 Switch B N.O. Black/ BKPK pink Feedback Potentiometer 0 to 100% P1 - P2 White/ WHRD Feedback Potentiometer Common White/ WHBU Potentiometer blue Feedback Potentiometer 100 to 0% P3 - P2 White/ WHPK pink Page 14 Siemens Industry, Inc.
- Page 15 Connect wires S4 and S5 to the DMM. The DMM should indicate open circuit or no resistance. Stop the signal to wire 8 (gray). The DMM should indicate contact closure as the actuator shaft coupling reaches the setting of switch B. Siemens Industry, Inc. Page 15...
- Page 16 The DMM should indicate an open circuit or no resistance. Apply a control signal (24 Vac) to wires 1 (red) and 7 (orange). DMM should indicate contact closure as the actuator shaft coupling reaches setting for switch B. Page 16 Siemens Industry, Inc.
-
Page 17: Troubleshooting
If the actuator is not working, check the damper for blockage. If blocked, remove the obstacle and cycle the actuator power off and on. The actuator should resume normal operating mode. Dimensions Figure 22. Dimensions of the ASK75.7U Weather Shield in Inches (Millimeters). Siemens Industry, Inc. Page 17... - Page 18 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 Schweiz AG. Other product or company names mentioned herein may be the trademarks of their respective owners.