Siemens OpenAir GDE Series Owner's manual

Siemens Building Technologies, Inc.
Technical Instructions
Document No. 155-188P25
EA GDE/GLB-2
December 26, 2007
OpenAir™ Electric Damper Actuator
GDE/GLB Series
Non-spring Return Rotary
24 Vac Floating Control
Description OpenAir direct coupled 24 Vac non-spring return rotary electric actuators are
designed for floating control of dampers.
Features •Compact, lightweight design
•Manual override
•Standard and plenum models available
•Feedback potentiometer models available
•cUL and UL listed, CE certified
•Independently adjustable dual auxiliary switches available
Application These actuators are used in constant or variable air volume installations for control
of HVAC dampers requiring up to 44 lb-in (5 Nm) or 88 lb-in (10 Nm) of torque.
Product Numbers Table 1.
Torque Standard With
Potentiometer Dual Auxiliary Switches Only Pre-Cabled No Cables
GDE131.1U — — —
GDE131.1U/B (24 pk) — —
Standard —
GDE131.1P GDE132.1P GDE136.1P —
GDE131.1P/B (24 pk) — —
Plenum —
GDE131.1Q — — —
GDE131.1Q/B (12 pk) — —
6 ft length —
GDE131.1N — —
—
GDE131.1N/B (24 pk) — — —
Post Header AMP
GDE131.1T — — —
44 lb-in
(5 Nm)
GDE131.1T/B (24 pk) — — —
Terminal Strip
GLB131.1P GLB132.1P GLB136.1P Plenum —
88 lb-in
(10 Nm) GLB131.1Q — — 6 ft length —

Technical Instructions OpenAir Non-Spring Return Rotary Electric Damper Actuator
Document No. 155-188P25 24 Vac Floating Control
December 26, 2007
Page 2 Siemens Building Technologies, Inc.
Specifications
Power supply
Operating voltage (G–Y1 or G–Y2) 24 Vac +20%, -15%
Frequency 50/60 Hz
Power consumption 2.3 VA
Equipment rating Rating Class 2 according to UL, CSA
Class III per EN60730
Auxiliary features
Feedback potentiometer (GDE/GLB132.1P)
Sliding contact (P2) 0 to 1000 ohm < 10 mA
Load < 1W
Voltage UL-Class 2 (SELV/PELV for CE)
< 24 Vac/dc
Dual auxiliary switch contact rating
AC Rating 24 Vac/24 Vdc
4A resistive, 2A inductive
DC Rating 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°
Function Torque
GDE 44 lb-in (5 Nm)
GLB 88 lb-in (10 Nm)
Runtime for 90° opening or closing
GDE 90 sec. at 60 Hz (108 sec. at 50 Hz)
GLB 125 sec. at 60 Hz (150 sec. at 50 Hz)
Nominal angle of rotation 90°
Maximum angular rotation 95°
Mounting Shaft size: Minimum shaft length 3/4 inch (20 mm)
EA1010R1
9/16 inch
15 mm
3/8 to 5/8 inch
8 -16 mm
1/4 to 1/2 inch
6 - 12.7 mm
Figure 1. Acceptable Shaft Sizes.
Housing Enclosure NEMA Type 2
IP54 according to EN60529
GDE131.1N and GDE 131.1T NEMA1
Material Durable plastic
Gear lubrication Silicone-free

OpenAir Non-Spring Return Rotary Electric Damper Actuator Technical Instructions
24 Vac Floating Control Document No. 155-188P25
December 26, 2007
Siemens Building Technologies, Inc. Page 3
Specifications, Continued
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
certification UL listed to UL873
cUL certified to Canadian Standard
C22.2 No. 24-93
Conformity
for Plenum
Models
In accordance with the directive set forth by the European Union for
Electromagnetic Compatibility (EMC) 89/336/EEC
Emissions standards EN 50081-1
Immunity standards EN 50082-2
Miscellaneous Pre-cabled connection 18 AWG
Standard 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 6.2" L × 2.8" W × 2.4" D× 2.4" D
(157 mm L × 71 mm W × 61 mm D)
Weight 1.06 lb. (0.48 kg)
Accessories NOTE: Neither the auxiliary switches nor feedback potentiometer can be added in
the field. Order the product number that includes these options.
See Table 1.
EA0695R1
Figure 2. Rotary to Linear.
ASK71.5 Allows a direct-coupled actuator to
provide an auxiliary linear drive.
Ea0696R1
Figure 3. Rotary to Linear
with Bracket.
ASK71.6 Allows economical mounting of an OpenAir
actuator to a variety of surfaces. Should be used in
applications where the actuator can be rigid-surface
mounted and a linear stroke output is needed.
EA0647R1
Figure 4. Conduit Adapter.
ASK76.1U Provides the connection between the
actuator and conduit.
NOTE: GDE131.1T and GDE131.1N are not
compatible with the ASK76.1U.

Technical Instructions OpenAir Non-Spring Return Rotary Electric Damper Actuator
Document No. 155-188P25 24 Vac Floating Control
December 26, 2007
Page 4 Siemens Building Technologies, Inc.
Accessories,
Continued
EA0807R1
Figure 5. Shaft Insert.
ASK78.3U Shaft insert for use with 3/8-inch (8
to 10 mm) diameter shafts. (Included in box with
GDE/GLB Series). (Pkg/10)
NOTE: Factory installed 1/2-inch guide must
be removed prior to installation.
EA1060R1
Figure 6. Shaft Guide Insert.
985-101P25 –Shaft guide insert, 1/2 inch 25 Pk
(Factory installed with GDE/GLB
Series).
EA1246R1
Terminal Plug
(To TEC)
Figure 7.
985-132: Floating input cable for use only with the
Siemens Building Technologies, Inc.
Terminal Equipment Controller (TEC), 3 ft,
12 pk.
EA1251R1
Figure 8.
985-131: Floating input cable; 3 ft, 12 pk.
EA1248R1
Figure 9.
985-134: Daisy chain cable 12 ft, 12 pk.
985-135: Daisy chain cable 25 ft, 12 pk.
Actuator
Components
80 70 60
2010
Aux Switch
Adjustment
A B
50
90
90
45
EA0642R3
1
2
12
10
8,9
11
6
13
34
5
7
Figure 10. Parts of the Actuator.
Legend
1. Base plate
2. Positioning scale for angle of
rotation
3. Connection cables
4. Connection cables
5. Manual override
6. Coupling bushing
7. Factory installed 1/2-inch guide
8. Auxiliary switch A
9. Auxiliary switch B
10. Position indicator
11. Adjustment lever with locking
screw (4 mm hex)
12. Set screw for mechanical range
stop (4 mm hex)
13. Mounting bracket

OpenAir Non-Spring Return Rotary Electric Damper Actuator Technical Instructions
24 Vac Floating Control Document No. 155-188P25
December 26, 2007
Siemens Building Technologies, Inc. Page 5
Actuator Components, Continued
Terminal
Strip
GDE131.1T
EA1094R1
CW
Supply 24Vac
CCW
Figure 11.
GDE131.1T
The GDE131.1T uses a Terminal
Strip connection for connection
purposes rather than the cable
connection.
NOTE: Wires are supplied by the
customer.
Post Header
AMP
Input (Output)
Output (Input)
Y1
G
Y2
Y1
G
Y2
GDE131.1N
EA1240R1
Figure 12.
GDE131.1N
The GDE131.1N model uses a Post
Header for connection purposes
rather than cable connections.
The Post Header has two identical
sets of contacts.
NOTE: Cables are purchased
separately. See
Accessories.

Technical Instructions OpenAir Non-Spring Return Rotary Electric Damper Actuator
Document No. 155-188P25 24 Vac Floating Control
December 26, 2007
Page 6 Siemens Building Technologies, Inc.
Operation 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.
To reverse the direction of rotation, the wires 6 and 7 (Y1 and Y2) can be interchanged.
In the event of a power failure or with no control voltage, the damper actuator holds its
position.
Life expectancy An improperly tuned loop will cause excessive repositioning that will shorten the life of the
actuator.
Auxiliary switches Figure 13 shows the adjustable switching values for the auxiliary switches A and B.
GDE/GLB136.1P Actuator Scale:
clockwise
Adjustment range for
Switches A and B
Setting interval: 5°
Switching hysteresis: 2°
Actuator Scale:
counterclockwise
AB
-2,5 0 10 20 30 70 80 90 92,5
0 10 20 30 70 80
EA0640R1
92,5 90 80 70 60 20 10 -2,5
90
0
Figure 13. Adjustable Switching Values
for the Dual Auxiliary Switches.
80 70 60
2010
AUX SWITCH
ADJUSTMENT
A B
50
EA0636R2
NOTE: The auxiliary switch setting shafts rotate with the actuator. The scale is valid
only when the actuator is in the "0" position on clockwise motion.
Use the long arm of the †to point to the position of switch A. Use the narrower
tab on the red ring to point to the position of switch B.
Sizing The type of actuator required depends on several factors.
1. Obtain damper torque ratings (ft-lb/ft2or 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 = SF eaDamper AringTorque Rat 1
×
4. Select the actuator type from Table 2.
1Safety Factor: When determining the torque of an actuator required, a safety factor
should be included for unaccountable variables such as slight misalignments, aging
of the damper, etc. A suggested safety factor is 0.80 (or 80% of the rated torque).
Table 2.
Total Torque Actuator
<44 lb-in (5 Nm) GDE13x
<88 lb-in (10 Nm) GLB13x
<132 lb-in (15 Nm) GEB13x
<221 lb-in (25 Nm) GBB13x
<310 lb-in (35 Nm) GIB13x

OpenAir Non-Spring Return Rotary Electric Damper Actuator Technical Instructions
24 Vac Floating Control Document No. 155-188P25
December 26, 2007
Siemens Building Technologies, Inc. Page 7
You must place the actuator on the damper shaft so that the front of the actuator is
accessible. The label is on the front side.
The minimum damper drive shaft length is 3/4-inch (20 mm).
EA1002R1
Mounting and
Installation
1/2 Ø inch Guide
Factory Installed 3/8 Ø inch Use shaft insert supplied
for any 3/8-in (8 - 10 mm)
diameter shaft
5/8 Ø inch
NOTE: For all damper shafts with the exception of the 1/2-inch round shaft:
Remove 1/2 Ø inch guide before installation.
Figure 14. Damper Shaft Sizes.
A mounting bracket is included with the actuator.
Observe the service envelope around the actuator as shown in Figure 25.
Detailed mounting instructions are included with each actuator.
Manual override To move the damper blades and lock the
position with no power present:
1. Slide the red manual override knob
toward the back of the actuator.
2. Make adjustments to the damper
position.
3. Slide the red manual override knob
toward the front of the actuator.
Once power is restored, the actuator returns
to automated control.
45
90
90
PL0013R2
MANUAL
ADJUSTMENT
LEVER
AUTO
2
1
3
Figure 15. Manual Override.
Mechanical range
adjustment 1. Loosen the stop set
screw.
2. Move the screw along
the track to the desired
position, and fasten it in
place.
45
90
90
EA0535R2
4 mm
45¡
90¡
90¡
EA0536R2
<90¡
Figure 16. Moving the Mechanical Range Stop.
1
2

Technical Instructions OpenAir Non-Spring Return Rotary Electric Damper Actuator
Document No. 155-188P25 24 Vac Floating Control
December 26, 2007
Page 8 Siemens Building Technologies, Inc.
Wiring All wiring must conform to NEC and local codes and regulations.
Use earth ground isolating step-down Class 2 transformers. Do not use autotransformers.
The sum of the VA ratings of all actuators and all other components powered by one
transformer must not exceed the rating of the transformer. It is recommended that one
transformer power no more than ten actuators.
CAUTION:
Do not wire different types of actuators (such as GBBx or GIBx) in parallel with
the GDE13x or the GLB13x models.
WARNINGS:
All six outputs of the dual auxiliary switch (A and B) must only be connected to:
•Class 2 voltage (UL/CSA).
•Separated Extra-Low Voltage (SELV) or Protective Extra Low Voltage
(PELV) (according to HD384-4-41) for installations requiring
conformance. You must use a certified plenum rated actuator.
Installations requiring Conformance:
•All wiring for CE certified actuators must be "Separated Extra Low
Voltage" (SELV) or "Protective Extra Low Voltage" (PELV) per
HD384-4-41.
•Use safety-isolating transformers (Class III transformer) per EN61558.
They must be rated for 100% duty cycle.
•Over current protection for supply lines is maximum 10A.
Direction of Damper
Rotation If the damper blades turn counterclockwise to open (CCW), reverse the 6 (violet) and
7 (orange) wires at the controller.

OpenAir Non-Spring Return Rotary Electric Damper Actuator Technical Instructions
24 Vac Floating Control Document No. 155-188P25
December 26, 2007
Siemens Building Technologies, Inc. Page 9
Wiring , Continued
Terminal Strip NOTE: Maximum wire size for the GDE131.1T 14 AWG.
GDE161.1T
GDE131.1T
EA1094R1
CW
Supply 24Vac
CCW
Figure 17. GDE131.1T Terminal
Strip.
M
1
Supply
CW
6CCW
7
EA1091R1
Figure 18. GDE131.1T Wiring Diagram.
Strain Relief
90
90
45
EA1097R1
Figure 19.
Securing the wires/cabling will prevent
breakage and ensure strong signals to the
GDE131.1T model. The following is
recommended:
1. The open bracket to the right of the
actuator terminal strip is the strain
relief for the customer provided control
wires.
2. Secure the wires to the actuator
bracket with a cable tie as shown in
Figure 19.

Technical Instructions OpenAir Non-Spring Return Rotary Electric Damper Actuator
Document No. 155-188P25 24 Vac Floating Control
December 26, 2007
Page 10 Siemens Building Technologies, Inc.
Wiring, Continued
Post Header AMP
GDE131.1N
The GDE131.1N has two sets of identical contacts as shown in Figure 20.
•All wiring must conform to NEC and local codes and regulations.
•Use earth ground isolating step-down Class 2 transformers. Do not use
autotransformers.
•Determine the supply transformer rating by summing the total VA of all
actuators used. It is recommended that one transformer power no more than 12
actuators.
Direction of Damper Rotation
To change the direction of rotation of the GDE131.1N, switch the Y1 and Y2 wires at
the controller.
NOTE: This rotation will affect all actuators in the daisy chain configuration.
Input (Output)
Output (Input)
Y1
G
Y2
Y1
G
Y2
GDE131.1N
EA1240R1
Figure 20. GDE131.1N Post Header AMP.
NOTE:
You must select
either the top 3
contacts or the
bottom 3 contacts.