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Electronic Damper Actuator
Siemens
Product Guard
Warranty
Non-spring Return
OpenAir
TM
GLB Series
Easily Replaces:
• Belimo NM Series
88 lb.-in. Torque
24 Vac, Floating Control
0 to 10 Vdc, Modulating Control
Description
The OpenAir GLB Series Direct-coupled 24 Vac
Non-spring Electronic Actuator is designed for 0 to 10
Vdc or oating control of building HVAC dampers.
Features
• Compact design
• Easy-to-see position indicator
• 0 to 10 V or oating models
• Self-adapting capability for maximum exibility in
damper positioning
• UL, cUL, CE listed
• Quiet, low-power operation
• Rugged all metal housing, rated NEMA 2
• Assembled in the U.S.A.
• Manual override
• Plenum-rated cable
• Modulating actuators contain built-in feedback
GLB Series Non-spring Return
Electronic Damper Actuator.
Applications
The OpenAir GLB Series Damper Actuators are used in
constant or variable air volume installations for the control
requiring up to 88 lb.-in. (10 Nm) torque.
B-23
Damper Actuators
Options
• Independently adjustable dual auxiliary switches
• Adjustable start/span
• Potentiometer on oating control
Siemens
Product Guard
PLUS 3 Warranty
www.usa.siemens.com/hvac
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GLB Series Specifications
B-24
Operating Voltage ..........................................................................24 Vac
Frequency .............................................................................. 50 to 60 Hz
Power Consumption ................................................. 3.3 VA (modulating)
2.3 VA (oating)
Input Signal (8–2)
Voltage-Input ....................................................................... 0 to 10 Vdc
Input Resistance...................................................................100K Ohms
Position Output Signal (9–2)
Voltage-Output ..................................................................... 0 to 10 Vdc
Max. Output Current ....................................................................... 1 mA
Equipment Rating for Operating Voltage,
Input Signal, and Position Output Signal ...................................Class 2
Control Signal Adjustment
Offset (Start Point) ................................................... Between 0 to 5 Vdc
Factory Setting .................................................................................. 0 V
Span ..................................................................... Between 2 to 10 Vdc
Dual Auxiliary Switch
Contact Rating ................................. 4 A resistive, 2 A General Purpose
Voltage .........................................................................................24 Vac
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 ........................................................................... 3°
Position Feedback
GLB132.1P ...................................................... .0 to 1000 Ohm <10 mA
Function
Torque ..........................................................................88 lb.-in.(10 Nm)
at 50 Hz ................................................................................ 150 sec.
at 60 Hz ................................................................................ 125 sec.
Nominal Angle of Rotation ................................................................. 90°
Max. Angular Rotation .......................................................................95°
Shaft Dimensions ....................................3/8 to 5/8-in. (8 to 16 mm) Dia.
1/4 to 1/2-in. (6 to 13 mm) Sq.
Min. Shaft Length ............................................................ 3/4-in. (20 mm)
Housing Enclosure ..................................................................... NEMA 2
Material ......................................................Plenum Rated Rugged Plastic
Temperature
Operation...................................................-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
Pre-cabled Connection .............................................................. AWG 18
Cable Length .......................................................................... 3 ft. (0.9 m)
Dimensions ........................................................ 5.4" H x 2.6" W x 2.3" D
(137 mm H x 68 mm W x 60 mm D)
Shipping Weight ................................................................06 lb. (0.45 kg)
Refer to page B-21 for Dimensions.
GLB Series Product Ordering
Damper Actuators
Input Signal Cabling
Floating, 24 Vac
0 to 10 Vdc
Accessories & Service Kits
3' Plenum Cable GLB131.1P — — GLB136.1P GLB132.1P
6' Plenum Cable GLB131.1Q — — — —
3' Plenum Cable GLB161.1P GLB163.1P GLB164.1P GLB166.1P —
6' Plenum Cable GLB161.1Q — — — —
Standard
Span/Offset
Adjustable
Part No.
Dual Aux.
Switches &
Span/Offset
Adjustable
Dual Aux.
Switches Only Potentiometer
B-49
www.usa.siemens.com/hvac
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