Siemens Industry, Inc. Technical Instructions Document No. 155-176P25 EA GBB/GIB-1 December 3, 2019 OpenAir ® GBB/GIB Series Electronic Damper Actuators Non-Spring Return, 24 Vac, Modulating Control Description The OpenAir, non-spring return (NSR), 24 Vac, rotary, direct-coupled, electric actuator is designed for modulating control of building HVAC dampers. Features • Built-in feedback on modulating units • Unique self-centering shaft coupling • All metal housing • Two torque ranges available • Manual override • Offset and span adjustment models available • Independently adjustable dual auxiliary switches available • UL, cUL and CE listed Product Numbers Table 1. 24 Vac Operating Voltage Torque Input Signal Cabling Standard Span/Offset Adjustable Dual Auxiliary Switches and Span/Offset Adjustable Dual Auxiliary Switches only 221 lb-in (25 Nm) 0 to 10 Vdc Standard GBB161.1U GBB163.1U GBB164.1U GBB166.1U Plenum Cable GBB161.1P GBB163.1P GBB164.1P GBB166.1P 310 lb-in (35 Nm) 0 to 10 Vdc Standard GIB161.1U GIB163.1U GIB164.1U GIB166.1U Plenum Cable GIB161.1P GIB163.1P GIB164.1P GIB166.1P Application These actuators are used in constant or variable air volume installations for the control of supply return air, mixed air, exhaust, rooftop units, and face and bypass dampers requiring up to 221 lb-in (25 Nm) torque or 310 lb-in (35 Nm) torque. Technical Instructions GBB/GIB Series Non-spring Return, 24 Vac, Modulating Control Document Number 155-176P25 December 3, 2019 Page 2 Siemens Industry, Inc. Warning/Caution Notations WARNING: Personal injury/loss of life may occur if you do perform a procedure as specified. CAUTION: Equipment damage or loss of data may occur if you do not perform a procedure as specified. Specifications Power supply Operating voltage (G–G0) 24 Vac 20% Frequency 50/60 Hz Power consumption Running… 8 VA, 8W Holding… 1.1W For one tandem application 12 VA of two actuators Control Signal Input signal (Y–G0) voltage-input 0 to 10 Vdc Input resistance >100K ohms Feedback Signal Position output signal (U–G0) Voltage-output 0 to 10 Vdc Maximum output current DC 1 mA Equipment Rating Operating voltage, input signal and Class 2, in accordance with UL/CSA position output signal Plenum type actuators as a whole device Class 2, in accordance with UL/CSA Auxiliary Features Dual auxiliary switches AC rating (standard cable) 24 to 250 Vac AC 6A resistive AC 2A general purpose AC rating (Plenum cable) 24 Vac AC 4A resistive AC 2A general purpose DC rating (Standard/Plenum cable) 12 to 30 Vdc DC 2A Switch Range Switch A 0 to 90° with 5° intervals Recommended range usage 0 to 45° Factory setting 5° Switch B 0 to 90° with 5° intervals Recommended range usage 45 to 90° Factory setting 85° Switching hysteresis 2° WARNING: Apply only AC-line voltage from the same phase 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. NOTE: With plenum cables, only UL-Class 2 voltage (SELV for CE is permissible). GBB/GIB Series Non-spring Return, 24 Vac, Modulating Control Technical Instructions Document Number 155-176P25 December 3, 2019 Siemens Industry, Inc. Page 3 Specifications, Continued CAUTION: It is recommended to switch off the power during two-position control when the actuator has reached the open or closed position to enhance life span and reduce power consumption. Function Torque GBB… 221 lb-in (25 Nm) GIB… 310 lb-in (35 Nm) Runtime for 90° opening or closing 125 seconds at 60 Hz 150 seconds at 50 Hz Nominal angle of rotation 90° Maximum angular rotation 95° Noise level <45 dBA Mounting Shaft size 3/8 to 1-inch (8 to 25.6 mm) diameter 1/4 to 5/8-inch (6 to 18 mm) square Minimum shaft length 3/4-inches (20 mm) Housing Enclosure NEMA 2 in vertical position to 90° to the left and right of vertical See Figure 18 NEMA 3R rated when installed with ASK75.1U Weather Shield in the vertical position. See Accessories. IP54 according to EN60529 Material Die cast aluminum alloy Gear lubrication Silicone-free Ambient Conditions Ambient temperature Operation -25°F to 130°F (-32°C to 55°C) Storage and transport -40°F to 158°F (-40°C to 70°C) Ambient humidity (non-condensing) 95% rh Agency Approvals UL listed to UL873 cUL certified to Canadian Standard C22.2 No. 24-93 CE conformity: Electromagnetic compatibility 2004/108/EC Low-voltage directive 2006/95/EC Miscellaneous Pre-cabled connection 18 AWG Cable length 3 feet (0.9m) Life cycle Designed for over 60,000 full strokes and a minimum of 1.5 million repositions at rated torque and temperature Dimensions See Figure 30 Weight 4.4 lbs (2 kg) Country of Origin USA Technical Instructions GBB/GIB Series Non-spring Return, 24 Vac, Modulating Control Document Number 155-176P25 December 3, 2019 Page 4 Siemens Industry, Inc. Accessories NOTE: Neither the control signal adjustments nor the auxiliary switches can be added in the field. Order the product numbers that include these options. Figure 1. Floor Mount Kit. ASK71.1U: Kit allows foot mounting of the OpenAir actuators. Kit should be used for in-the-air stream applications, and anywhere a foot-mounted actuator can be mounted. Kit contains: • Crank arm that changes the angular rotation into a linear stroke • Support bearing ring to minimize side loading on the actuator’s output bearing • Mounting bracket • Required mounting fasteners Figure 2. Frame Mount Kit. ASK71.2U: Kit allows mounting of OpenAir actuators directly to a damper frame. Kit should be used with louvers and vents and in applications where use of the floor mount kit is not possible. Kit contains: • Crank arm that changes the angular rotation into a linear stroke • Support bearing ring to minimize side loading on the actuator’s output bearing • Mounting bracket • Required mounting fasteners Figure 3. Crank Arm Kit. ASK71.3: Kit allows a direct-coupled actuator to provide an auxiliary linear drive. Crank arm kit can be used to simultaneously drive a set of opposing or adjacent dampers with a single actuator. Kit contains: • Crank arm that attaches to the splined hub of the shaft adapter • Other required mounting fasteners Figure 4. Crank Arm Kit with Mounting Bracket. ASK71.4: Kit allows economical mounting of OpenAir actuators to a variety of surfaces. Kit should be used in applications where the actuator can be rigidly surface mounted and a linear stroke output is required. Kit contains: • Crank arm that attaches to the splined hub of the shaft adapter • Mounting bracket • Required mounting fasteners GBB/GIB Series Non-spring Return, 24 Vac, Modulating Control Technical Instructions Document Number 155-176P25 December 3, 2019 Siemens Industry, Inc. Page 5 Accessories, Continued Figure 5. Tandem Mounting Bracket. ASK73.1U: Provides an extended anti- rotation pin that allows two modulating GIB actuators to directly drive a single damper shaft. For any combination of GIB161x and GIB166x actuators. Bracket must be ordered for tandem installation. Figure 6. Special Shaft Adapter. 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 1.00-inch (25 mm) diameter shaft. This special adapter can be used for coupling to 1-inch jackshafts that are slightly oversized. Shaft adapter is 13/16-inches (20 mm) shorter than the height of the self-centering shaft adapter. 985-052P20: Small shaft insert (package of 20) when using the GIB actuator on a damper shaft less than 3/4-inch (20 mm) diameter. Figure 7. NEMA 3R Weather Shield. ASK75.1U: GBB and GIB Actuators are UL listed to meet NEMA 3R requirements (a degree of protection against rain, sleet, snow and damage from external ice formation) when installed with ASK75.1U Weather Shield and outdoor-rated conduit fittings in the vertical position. For dimensions, see Figure 28. Figure 8. NEMA Type 4X Weather Shield. ASK75.7U: GBB and GIB Actuators are UL listed to meet NEMA Type 4X requirements (a degree of protection against falling dirt, rain, sleet, snow, windblown dust, splashing water, hose- directed water, corrosion, and damage from external ice formation) when installed with an ASK75.7U Weather Shield and outdoor-rated conduit fittings. This weather shield may be mounted in any orientation. For dimensions, see Figure 29. Technical Instructions GBB/GIB Series Non-spring Return, 24 Vac, Modulating Control Document Number 155-176P25 December 3, 2019 Page 6 Siemens Industry, Inc. Figure 9. Heater/Weather Shield Assembly. 985-106: Provides protection for GIB, GBB and GCA OpenAir actuators in an outside low temperature. Assembly includes: • Weather Shield (ASK75.1U) • Heater Kit (985-105) Figure 10. Conduit Adapter. 985-008: 1/2-inch (12 mm) for 1/2-inch NPT connector. Service Parts Figure 11. Position Indicator. Figure 12. Standard Shaft Adapter. Figure 13. Anti-rotation (Mounting) Bracket. 985-003 (package of 10) 985-004 985-006 GBB/GIB Series Non-spring Return, 24 Vac, Modulating Control Technical Instructions Document Number 155-176P25 December 3, 2019 Siemens Industry, Inc. Page 7 Actuator Components Figure 14. Components of the Modulating Actuator. Legend 1. Positioning scale for angle of rotation 2. Span adjustment 3. Offset (start point) adjustment 4. Direction of rotation arrow 5. Connection cables 6. Manual override 7. Auxiliary switch B 8. Auxiliary switch A 9. Position indicator 10. Self-centering shaft adapter 11. Shaft adapter locking clip 12. Position indicator adapter 13. Mounting bracket Technical Instructions GBB/GIB Series Non-spring Return, 24 Vac, Modulating Control Document Number 155-176P25 December 3, 2019 Page 8 Siemens Industry, Inc. Operation A continuous 0 to 10 Vdc signal from a controller to wire Y operates the damper actuator. The angle of rotation is proportional to the control signal. A 0 to 10 Vdc position feedback output signal is available between wires U and G0 (system neutral) to monitor the position of the damper motor. In the event of a power failure, depending on load, the actuator may not hold the commanded (or new) position. In the event only the control signal is lost, the actuator returns to the "0" position. 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. Control Signal Adjustment GBB/GIB 163x GBB/GIB 164x The offset (start point) and span of the control signal can be adjusted. The offset point, U0, (start point) can be adjusted between 0 to 5 Vdc. The span, U, can be adjusted between 2 to 30 Vdc. Ys Mechanical positioning range (100% = angle of rotation 90°) Yu Control signal U0 Offset (start point) U Span 1. Uo =0V, U = 2V Minimum working range for Ys = 100% 2. Uo = 5V, U = 30V Maximum working range for Ys = 100% 3. Uo = 0V, U 10V Factory setting Setting for 10V span 0 offset Figure 15. Minimum, Factory Setting, and Maximum Control Signal Adjustment. GBB/GIB Series Non-spring Return, 24 Vac, Modulating Control Technical Instructions Document Number 155-176P25 December 3, 2019 Siemens Industry, Inc. Page 9 Operation, Continued Control Signal Adjustment Example Open the actuator from 0% to 50% (45°) using a control signal of Umin = 2V to Umax = 10V. Calculating the value of U: U 100 [%] x (U maxU min) Working angle of rotation [%] 100% x (10V - 2V) 50% 16 V = − = = Settings: Uo = 2V; U = 16V Umin = minimum control signal Umax = maximum control signal Figure 16. Example. Dual Auxiliary Switch GBB/GIB 164x, and GBB/GIB 166x Actuator Scale: Clockwise Adjustment range for Switches A and B Setting interval: 5° Switching hysteresis: 2° Actuator Scale: Counterclockwise NOTE: The auxiliary switch setting shafts turn together with the actuator. The scales are valid only when the actuator is in the "0" position on clockwise motion. To change the settings of A and B, use a flat-blade screwdriver to turn the switch adjustment dials to the desired setting at which a signal is to be given. Factory setting Switch A 5° Switch B 85° Figure 17. Dual Auxiliary Switch Dials. Next >