Technical Instructions Document No. 155-318P25 EA GEB-1 May 19, 2014 OpenAir™ GEB Series Non-spring Return, 24 Vac, 132 lb-in Rotary Electronic Damper Actuators Description Features Application The OpenAir direct-coupled, 24 Vac, non-spring return electronic actuator is designed for modulating and floating control of building HVAC dampers.
Technical Instructions Document Number 155-318P25 May 19, 2014 OpenAir GEB Non-Spring Return, 24 Vac,132 lb-in, Rotary Electronic Damper Actuators Product Numbers Table 1. Power Supply 24 Vac Control Signal Feedback signal Floating Plenum Standard Position Feedback Dual Auxiliary Switches Offset and Span Input Signal Selectable 0 – 10 Vdc or 2-10 Vdc ● ● ● – – – ● ● ● ● – – – ● ● – – ● – – – – – – – – – GEB136.1U GEB161.1P GEB161.1U GEB164.
OpenAir GEB Non-Spring Return, 24 Vac, 132 lb-in, Rotary Electronic Damper Actuators Mounting Shaft size Minimum shaft length Housing Ambient conditions Enclosure 1/4 to 3/4-inch (6.4 to 20.5 mm) dia. 1/4 to 1/2-inch (6.
Technical Instructions Document Number 155-318P25 May 19, 2014 OpenAir GEB Non-Spring Return, 24 Vac,132 lb-in, Rotary Electronic Damper Actuators Auxiliary features, Continued WARNING: Apply only AC line voltage or only UL-Class 2 voltage (SELV for CE conformance) to the switching outputs of both auxiliary switches A and B. Mixed operation is not permissible. See Wiring for details. NOTE: Miscellaneous With plenum cables, only UL-Class 2 (SELV for CE) is permitted).
OpenAir GEB Non-Spring Return, 24 Vac, 132 lb-in, Rotary Electronic Damper Actuators NOTE: The auxiliary switches, control signal adjustment, and feedback potentiometer cannot be added in the field. Order the product number that includes the option(s). 4614Z19 Accessories Technical Instructions Document Number 155-318P25 May 19, 2014 4614Z16 Figure 2. Floor /Frame Mount Kit. 4614Z18 Figure 3. Rotary to Linear Crank Arm Kit. Figure 4. Rotary to Linear Crank Arm Kit with Mounting Bracket. ASK71.
Technical Instructions Document Number 155-318P25 May 19, 2014 OpenAir GEB Non-Spring Return, 24 Vac,132 lb-in, Rotary Electronic Damper Actuators ASK75.7U: GEB Actuators are UL listed to meet NEMA Type 4X requirements (a degree of protection against falling dirt, rain, sleet, snow, windblown dust, splashing water, hosedirected water, corrosion, and damage from external ice formation) when installed with an ASK75.7U Weather Shield and outdoor-rated conduit fittings.
OpenAir GEB Non-Spring Return, 24 Vac, 132 lb-in, Rotary Electronic Damper Actuators Sizing Technical Instructions Document Number 155-318P25 May 19, 2014 The type of actuator required depends on several factors: 2 2 1. Obtain damper torque ratings (ft-lb/ft or Nm/m ) from the damper manufacturer. 2. Determine the area of the damper. 3.
Technical Instructions Document Number 155-318P25 May 19, 2014 Manual Override OpenAir GEB Non-Spring Return, 24 Vac,132 lb-in, Rotary Electronic Damper Actuators To move the damper blades and lock the position without power present: 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. Mechanical Range Adjustment Figure 8. Manual Override.
OpenAir GEB Non-Spring Return, 24 Vac, 132 lb-in, Rotary Electronic Damper Actuators Technical Instructions Document Number 155-318P25 May 19, 2014 4. Determine the angle of rotation for the damper blade shaft. Subtract that amount from 90°. 5. Remove the shaft adapter and insert it with the position indicator pointing to the mark on the scale calculated in the previous step. See Figure 12. 6. Attach the clip. Control signal adjustment 7. Rotate the damper blade shaft to its “0” position. 8.
Technical Instructions Document Number 155-318P25 May 19, 2014 Control Signal Adjustment, Continued OpenAir GEB Non-Spring Return, 24 Vac,132 lb-in, Rotary Electronic Damper Actuators Uo = 2; ∆U = 16V Umin = minimum control signal Umax = maximum control signal Figure 14. Example. ← Actuator scale: Clockwise Dual auxiliary switch GEB164.1U, GEB136.
OpenAir GEB Non-Spring Return, 24 Vac, 132 lb-in, Rotary Electronic Damper Actuators DIP Switch Functionality, Continued Technical Instructions Document Number 155-318P25 May 19, 2014 Rotary direction • The arrow direction must match the rotational direction of the actuator. • Factory setting: Self-adapting 0 CAUTION: • Alternative switch-on/off for self-adaptation.
Technical Instructions Document Number 155-318P25 May 19, 2014 OpenAir GEB Non-Spring Return, 24 Vac,132 lb-in, Rotary Electronic Damper Actuators WARNINGS: Installations requiring Conformance: • Except for the auxiliary switches (See Warning above) all wiring for actuators must be safety extra-low voltage (SELV) or protective extra-low voltage (PELV) per HD384. • Use safety transformers per EN61558 with double isolation, designed for 100% duty-cycle for supplying SELV or PELV circuits.
OpenAir GEB Non-Spring Return, 24 Vac, 132 lb-in, Rotary Electronic Damper Actuators Start-Up/ Commissioning Technical Instructions Document Number 155-318P25 May 19, 2014 1. Check Operation: Non-spring Return Modulating Control (0-10 Vdc) 24 Vac 2. 3. a. Connect wires 1 (red) and 2 (black) to the 24 Vac power supply. b. Set the Digital Multimeter (DMM) dial to Vdc for the actuator input signal. c. Connect wires 2 (black) and 8 (gray) to a Digital Multimeter (DMM). d.
Technical Instructions Document Number 155-318P25 May 19, 2014 Non-spring Return Floating 24 Vac 1. OpenAir GEB Non-Spring Return, 24 Vac,132 lb-in, Rotary Electronic Damper Actuators Check Operation: a. Apply a control signal (24 Vac) to wires 1 (red) and 6 (violet). b. Allow the actuator shaft coupling to rotate from 0 to 90°. c. Stop applying a control signal to wires 1 (red) and 6 (violet). d. Apply a control signal (24 Vac) to wires 1 (red) and 7 (orange). e.
OpenAir™ GEB Non-spring Return Rotary Electric Damper Actuators Service Technical Instructions Document Number 155-318P25 May 19, 2014 WARNING: Do not open the actuator. If the actuator is inoperative, replace the unit. Troubleshooting WARNING: To avoid injury or loss of life, pay attention to any hazardous voltage (Example: 120 Vac) when performing checks. • Check that the wires are connected correctly. • Check that auxiliary switches, DIP-switches, and Offset/Span are set correctly.
Technical Instructions Document Number 155-318P25 May 19, 2014 OpenAir™ GEB Non-spring Return Rotary Electric Damper Actuators Dimensions Figure 20. Dimensions of the GEB Actuator and Mounting Bracket in inches (mm). 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.
