Technical Instructions Document Number 155-177P25 EA GBB/GIB-2 August 6, 2019 OpenAir® GBB/GIB Series Electronic Damper Actuators Non-spring Return 24 Vac, Floating Control, Rotary Description The OpenAir direct coupled 24 Vac, non-spring return (NSR) rotary electric actuator is designed for floating control of building HVAC dampers.
Technical Instructions Document No. 155-177P25 August 6, 2019 OpenAir™ GBB/GIB Series Non-spring Return, 24 Vac, Floating Control Warning/Caution Notations WARNING: Personal injury/loss of life may occur if you do not perform a procedure as specified. CAUTION: Equipment damage or loss of data may occur if you do not perform a procedure as specified.
OpenAir™ GBB/GIB Series Non-spring Return, 24 Vac, Floating Control Specifications, Continued Function Running torque GBB… GIB… Runtime for 90° opening or closing Nominal angle of rotation Maximum angular rotation Mounting Shaft size Minimum shaft length Housing Ambient conditions Enclosure Technical Instructions Document No. 155-177P25 August 6, 2019 221 lb-in (25 Nm) 310 lb-in (35 Nm) 150 seconds at 50 Hz 125 seconds at 60 Hz 90° 95° 3/8 to 1-inch (8 to 25.
Technical Instructions Document No. 155-177P25 August 6, 2019 Accessories OpenAir™ GBB/GIB Series Non-spring Return, 24 Vac, Floating Control NOTE: Neither the auxiliary switches nor the feedback potentiometer can be added in the field. Order the product number that includes these options. ASK71.1U: Allows foot mounting of the OpenAir actuators. Kit should be used for in-the-air stream applications or anywhere a foot-mounted actuator can be mounted. Kit contains: Figure 1. Floor Mount Kit.
OpenAir™ GBB/GIB Series Non-spring Return, 24 Vac, Floating Control Accessories, continued Figure 5. Tandem Mount Bracket. Technical Instructions Document No. 155-177P25 August 6, 2019 ASK73.1: Bracket provides an extended anti-rotation pin that allows two GIB13x OpenAir actuators to directly drive a single damper shaft. For use with threeposition actuators. ASK74.1U: Shaft adapter attaches to a 1.05-inch (26.6 mm) diameter shaft; whereas, the standard self-centering adapter accepts up to a 1.
Technical Instructions Document No. 155-177P25 August 6, 2019 OpenAir™ GBB/GIB Series Non-spring Return, 24 Vac, Floating Control 985-008: 1/2-inch (12 mm) for 1/2-inch NPT connector. Figure 10. Conduit Adapter. Service Parts 985-003 Position Indicators (package of 10) 985-004 Standard Shaft Adapter 985-006 Anti-rotation (Mounting) Bracket Figure 11. Orderable Parts. Actuator Components Legend 1. Positioning scale for angle of rotation 2. Connection cables 3. Manual override 4.
OpenAir™ GBB/GIB Series Non-spring Return, 24 Vac, Floating Control Operation Technical Instructions Document No. 155-177P25 August 6, 2019 GBB/GIB13x A floating control signal controls the damper actuator. The actuator’s angle of rotation is proportional to the length of time the signal is applied. A 24 Vac control signal to wires 1 and 6 (G-Y1) causes the actuator coupling to rotate clockwise. A 24 Vac control signal to wires 1 and 7 (G-Y2) causes the actuator coupling to rotate counterclockwise.
Technical Instructions Document No. 155-177P25 August 6, 2019 Sizing OpenAir™ GBB/GIB Series Non-spring Return, 24 Vac, Floating Control The number of actuators required depends on several factors. To determine the quantity of actuators required for the installation: 1. Obtain damper torque ratings (ft-lb/ft2 or Nm/m2) from the damper manufacturer. 2. Determine the area of the damper. 3. Calculate the total torque required to move the damper: Total Torque = Torque Rating × Damper Area 4.
OpenAir™ GBB/GIB Series Non-spring Return, 24 Vac, Floating Control Manual override Technical Instructions Document No. 155-177P25 August 6, 2019 To move the damper blades and lock the position with no power present: 1. Determine damper rotation: clockwise or counterclockwise. 2. Hold down the PUSH button. 3. Make adjustments to the damper position. 4. Release the PUSH button. Once power is restored, the actuator returns to automated control. Mechanical range adjustment Figure 15. Manual Override.
Technical Instructions Document No. 155-177P25 August 6, 2019 Mechanical range adjustment, continued OpenAir™ GBB/GIB Series Non-spring Return, 24 Vac, Floating Control Counterclockwise-to-open: a. Insert the shaft adapter to the left as close as possible to the raised stop. b. Hold down the PUSH button and rotate the shaft adapter to the right until it stops. c. Release the PUSH button. d.
OpenAir™ GBB/GIB Series Non-spring Return, 24 Vac, Floating Control Technical Instructions Document No. 155-177P25 August 6, 2019 All wiring must conform to NEC and local codes and regulations. Wiring Use earth ground isolating step-down Class 2 transformers. Do not use autotransformers. The maximum rating for a Class 2 step-down transformer is 100 VA. Determine the supply transformer rating by summing the VA ratings of all actuators and all other components used.
Technical Instructions Document No. 155-177P25 August 6, 2019 Start-Up/ Commissioning OpenAir™ GBB/GIB Series Non-spring Return, 24 Vac, Floating Control 1. Check the Operation: a. Connect wires 1 (red), 6 (violet), and 7 (orange) to the actuator. b. Apply a control signal (24 Vac) to wires 1 (red) and 6 (violet). c. Allow the actuator shaft coupling to rotate from 0 to 90°. d. Stop applying a control signal to wires 1 (red) and 6 (violet). e.
OpenAir™ GBB/GIB Series Non-spring Return, 24 Vac, Floating Control Service Technical Instructions Document No. 155-177P25 August 6, 2019 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, (for example, 120 Vac) when performing checks. Check that the wires are connected correctly. 1.
Technical Instructions Document No. 155-177P25 August 6, 2019 OpenAir™ GBB/GIB Series Non-spring Return, 24 Vac, Floating Control Dimensions, Continued Figure 26. Dimensions of the GBB/GIB Actuator and Mounting Bracket in Inches (Millimeters). 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 registered trademark of Siemens Schweiz AG.
