Siemens Building Technologies OpenAir GBB Series Catalog Page
Rotary Electronic Damper Actuator
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Non-spring Return
OpenAir
TM
GBB Series
Easily Replaces:
• Belimo SM/AM Series
Description
Designed for control of building HVAC dampers, the
OpenAir GBB Series Direct-coupled 24 Vac Non-spring
Return Electronic Damper Actuators are available in 0 to
10 Vdc and oating control.
Features
• Brushless motor technology with stall protection
• Self-centering shaft coupling
• Rugged all metal housing
• Quiet, low-power operation
• Accepts shaft diameters up to 1" (25 mm)
• Manual override
• Assembled in the U.S.A.
• UL, cUL and CE listed
• Modulating actuators contain built-in feedback
221 lb.-in. Torque
0 to 10 Vdc, Modulating Control
Floating Control
GBB Series Non-spring Return
Electronic Damper Actuator.
Applications
The OpenAir GBB Series Damper Actuators are used in
constant or variable air volume installations for the control
of return air, mixed air, exhaust, and face and bypass
dampers that require up to 221 lb.-in. (25 Nm) torque.
Models are available with either an appliance cable for
wiring in conduit or a plenum-rated cable for applications
where conduit is not required.
B-27
Damper Actuators
Options
• Independently adjustable dual auxiliary switches
• Adjustable offset and span
• Potentiometer built in for oating controls
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GBB Series Specifications
B-28
Operating Voltage .............................................................. 24 Vac ± 20%
Frequency .............................................................................. 50 to 60 Hz
Power Consumption
0 to 10 Vdc ...................................................................................... 8 VA
Floating............................................................................................ 7 VA
Input Signal (8–2)
Voltage-input .................................................0 to 10 Vdc (max. 35 Vdc)
Input Resistance..................................................................100 K Ohms
Position Output Signal (9–2)
Voltage-output ...................................................................... 0 to 10 Vdc
Max. Output Current ..................................................................... ±1 mA
Equipment Rating for Operating Voltage ...................................Class 2
Runtime for 90° Opening or Closing
60 Hz ......................................................................................... 125 sec.
50 Hz ......................................................................................... 150 sec.
Nominal Angle of Rotation ................................................................90°
Max. Angular Rotation ....................................................................... 95°
Dual Auxiliary Switch
Contact Rating
Standard Cable............................ 6 A resistive, 2 A General Purpose
Plenum Cable .............................. 4 A resistive, 2 A General Purpose
Voltage
Standard Cable.............................................................24 to 250 Vac
Plenum Cable ..........................................................................24 Vac
Switch Range
Switch A .......................................................0 to 90° with 5° intervals
Recommended Range........................................................... 0 to 45°
Switch B.......................................................0 to 90° with 5° intervals
Recommended Range......................................................... 45 to 90°
Switching Hysteresis .......................................................................... 2°
Position Feedback .............................................. 0 to 1000 Ohm <10 mA
Torque .........................................................................221 lb.-in. (25 Nm)
Temperature
Operating...................................................-25 to +130°F (-32 to +55°C)
Storage and Transport...............................-40 to +158°F (-40 to +70°C)
Humidity ...........................................................95% RH, non-condensing
Agency Approvals ......................................................................... UL873
cUL C22.2 No. 24-93
CE
Shaft Size ....................................................3/8 to 1-in. (8 to 25 mm) Dia.
1/4 to 5/8-in. (6 to 16 mm) Sq.
Min. Shaft Length ............................................................ 3/4-in. (20 mm)
Housing Enclosure .................................................................... NEMA 2*
Material ............................................................... Die-cast aluminum alloy
Cable Length .......................................................................... 3 ft. (0.9 m)
Dimensions ..................................................... 12" H x 4.75" W x 2.88" D
(305 mm H x 121 mm W x 73 mm D)
Shipping Weight ................................................................4.4 lb. (2.0 kg)
*Refer to Installation Instructions for acceptable mounting positions.
Refer to page B-13 for Dimensions.
GBB Series Product Ordering
Damper Actuators
Input Signal Cabling
0 to 10 Vdc
Floating
Accessories & Service Kits
Standard GBB161.1U GBB163.1U GBB164.1U GBB166.1U —
Plenum Cable GBB161.1P GBB163.1P GBB164.1P GBB166.1P —
Standard GBB131.1U — — GBB136.1U GBB132.1U
Plenum Cable GBB131.1P — — GBB136.1P GBB132.1P
Standard
Span/Offset
Adjustable
Part No.
Dual Aux.
Switches &
Span/Offset
Adjustable
Dual Aux.
Switches Only
Position
Feedback
B-49
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