Siemens Building Technologies OpenAir GLB Series Catalog Page

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

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