Siemens OpenAir GDE Series Owner's manual

Siemens Building Technologies, Inc.
Technical Instructions
Document No. 155-188P25
EA GDE/GLB-2
Rev. 3, August, 2001
OpenAir™ Electric Damper Actuator
GDE/GLB Series
Non-spring Return Rotary
24 Vac 3-position Control
Description These OpenAir direct coupled 24 Vac non-spring return rotary electric actuators are
designed for 3-position (floating) control of dampers.
Features • Compact, lightweight design
• Manual override
• Standard and plenum models available
• Feedback potentiometer models available
• C-UL and UL listed; plenum versions also 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).
Product Numbers Table 1.
Torque Cabling Standard
With
Potentiometer Dual Auxiliary Switches
only
GDE131.1P GDE132.1P GDE136.1P
Plenum Cable GDE131.1P/B
(24 piece bulk pack) — —
GDE131.1U — —
44 lb-in (5 Nm)
Standard Cable GDE131.1U/B
(24 piece bulk pack) — —
88 lb-in (10 Nm) Plenum Cable GLB131.1P GLB132.1P GLB136.1P

Technical Instructions OpenAir ™ Non-Spring Return Rotary Electric Damper Actuator
Document No. 155-188P25 24 Vac 3-position Control
Rev. 3, August, 2001
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) 0 to 1000 Ω
<10mA
Dual auxiliary switch contact rating 4A resistive, 2A inductive
Voltage 24 Vac/24 Vdc
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
Material Durable plastic
Gear lubrication Silicone free
Ambient conditions Ambient temperature
operation -22 to 130°F (-30 to 55°C)
storage and transport -22 to 140°F (-30 to 60°C)
Ambient humidity (non-condensing) 95% R.H.
Agency certification UL listed to UL873
C-UL certified to Canadian Standard
C22.2 No. 24-93

OpenAir ™ Non-Spring Return Rotary Electric Damper Actuator Technical Instructions
24 Vac 3-position Control Document No. 155-188P25
Rev. 3, August, 2001
Siemens Building Technologies, Inc. Page 3
Specifications, Con’t
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
Cable length 3 feet (0.9 m)
Life cycle Designed for over 50,000 full strokes
and 5,000,000 repositions at rated
torque and temperature
Dimensions See Figure 7
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
Rotary to linear
ASK71.5 This kit allows a direct
coupled actuator to provide an
auxiliary linear drive.
Ea0696R1
Rotary to linear with bracket
ASK71.6 This kit allows economical
mounting of an OpenAir actuator to
a variety of surfaces. This kit should
be used in applications where the
actuator can be mounted to a rigid
surface and a linear stroke output is
needed.
EA0647R1
Conduit adapter
ASK76.1U This kit provides the
connection between the actuator
and conduit.
EA0807R1
Shaft insert
ASK78.3U Shaft insert for use with
3/8-inch (8 to 10 mm) diameter
shafts. Package of ten.
NOTE: Factory installed 1/2-inch
guide must be removed
prior to installation.

Technical Instructions OpenAir ™Non-Spring Return Rotary Electric Damper Actuator
Document No. 155-188P25 24 Vac 3-position Control
Rev. 3, August, 2001
Page 4 Siemens Building Technologies, Inc.
Actuator
Components
80 70 60
2010
Aux Switch
Adjustment
A ˚ B
50
90˚
90˚
45˚
EA1012R1
1
2
12
10
8,9
7
11
6
13
34
5
Figure 2. 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. 1/2-inch guide
8. Auxiliary switch A
9. Auxiliary switch B
10. Position indicator
11. Adjustment lever with locking
screw (3 mm hex)
12. Set screw for mechanical range
stop (3 mm hex)
13. Mounting bracket

OpenAir ™Non-Spring Return Rotary Electric Damper Actuator Technical Instructions
24 Vac 3-position Control Document No. 155-188P25
Rev. 3, August, 2001
Siemens Building Technologies, Inc. Page 5
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 3 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 3. Adjustable Switching Values for
the dual auxiliary Switches.
80 70 60
2010
AUX SWITCH
ADJUSTMENT
A˚ B
50
EA0636R1
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 X 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
×
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).
4. Select the actuator type from Table 2.

Technical Instructions OpenAir ™Non-Spring Return Rotary Electric Damper Actuator
Document No. 155-188P25 24 Vac 3-position Control
Rev. 3, August, 2001
Page 6 Siemens Building Technologies, Inc.
Table 2.
Total Torque Actuator
<44 lb-in (5 Nm) GDE13x.xx
<88 lb-in (10 Nm) GLB13x.xx
<177 lb-in (20 Nm) GBB17x.xx
Sizing, continued
<310 lb-in (35 Nm) GIB17x.xx
You must place the actuator on the damper shaft so that the front of the actuator is
accessible. The label is the front side.
The minimum damper drive shaft length is 3/4 inch (20 mm).
EA1002R1
Mounting and
Installation
1/2 Øinch Guide
Factory Installed 3/8 Øinch Use the shaft insert supplied
for any 3/8-inch (8 to 10 mm)
diameter shaft
5/8 Øinch
NOTE:For all damper shafts with the exception of the 1/2inch round shaft:
Remove 1/2 Øinch guide before installation.
Figure 4. Damper Shaft Sizes.
A mounting bracket is included with the actuator.
Observe the service envelope around the actuator as shown in Figure 7.
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
EA0534R1
MANUAL
AUTO
2
1
3
Figure 5. Manual Override.

OpenAir ™Non-Spring Return Rotary Electric Damper Actuator Technical Instructions
24 Vac 3-position Control Document No. 155-188P25
Rev. 3, August, 2001
Siemens Building Technologies, Inc. Page 7
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°
EA0535R1
3 mm
45°
90°
90°
EA0536R1
<90°
Figure 6. Moving the Mechanical Range Stop.
Wiring All wiring must conform to NEC and local codes and regulations.
Use earth ground isolating step-down Class 2 transformers. Do not use auto
transformers.
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 10 actuators.
CAUTION:
Do not wire different types of actuators (such as GBB…or GIB…) in
parallel with these models.
WARNING:
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
actuator.
WARNING:
Installations requiring Conformance:
• All wiring for CE certified actuators must only 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.
• Overcurrent 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.
1
2

Technical Instructions OpenAir ™Non-Spring Return Rotary Electric Damper Actuator
Document No. 155-188P25 24 Vac 3-position Control
Rev. 3, August, 2001
Page 8 Siemens Building Technologies, Inc.
Wiring Designations Each wire has the standard symbol printed on it.
EA0635R2
24
Vac
EARTH GROUND
ISOLATING CLASS 2
TRANSFORMER FOR
24Vac POWER
: SAFETY ISOLATING
TRANSFORMER
PER EN 60742
120Vac
7 (ORANGE)
6 (VIOLET)
1 (RED)
NEUT
Figure 7. Three-position Control.
Table 3. Three-position Control 24 Vac.
24 Vac power supply Standard
Symbol Function Terminal Designation Color
Three position control 24 Vac 1 Supply (SP) G Red
6 Control signal
clockwise Y1 Violet
7 Control signal
counterclockwise Y2 Orange
Factory Installed Options
S1 Switch A Common Q11 Black
S2 Switch A N.C. Q12 Black
S3 Switch A N.O. Q14 Black
MAB
1000
P1 P3P2 S1 S4
S2 S3 S5 S6
1
67
EA0282R1
S4 Switch B Common Q21 Black
S5 Switch B N.C. Q22 Black
S6 Switch B N.O. Q24 Black
P1 Feedback
Potentiometer
0 to 100% P1 - P2
a Black
P2 Feedback
Potentiometer
Common
b Black
P3 Feedback
Potentiometer
100 to 0% P3 - P2
c Black

OpenAir ™Non-Spring Return Rotary Electric Damper Actuator Technical Instructions
24 Vac 3-position Control Document No. 155-188P25
Rev. 3, August, 2001
Siemens Building Technologies, Inc. Page 9
Start-Up/
Commissioning 1. Check that the wires are connected correctly.
2. Connect wires 1(red) and 6 (violet) to a Digital Multimeter (DMM) with the dial
set at Vac. Apply a control signal (24 Vac) to wires 1 and 6 to verify that the
operating voltage is within range.
3. Connect wires 1(red) and 7 (orange) to a DMM with the dial set at Vac. Apply a
control signal (24 Vac) to wires 1 and 7 to verify that the operating voltage is
within range.
Check Operation:
1. Connect wire 1 (red) to the actuator.
2. Apply a control signal (24 Vac) to wires 1 (red) and 6 (violet).
3. Allow the actuator shaft coupling to rotate from 0 to 90°.
4. Stop applying a control signal to wires 1 (red) and 6 (violet).
5. Apply a control signal (24 Vac) to wires 1 (red) and 7 (orange).
6. Allow the actuator shaft coupling to rotate from 90 to 0°.
Check Feedback:
1. Set the DMM dial to Ohms.
2. Connect wires P1 and P2 to the DMM.
The DMM should indicate a resistive value.
3. Apply a control signal (24 Vac) to wires 1 (red) and 6 (violet).
The reading of the DMM should increase.
4. Connect wires P2 and P3 to the DMM.
The DMM should indicate a resistive value.
5. Apply a control signal (24 Vac) to wires 1 (red) and 7 (orange).
The reading of the DMM should increase.
Check the Auxiliary Switch A:
1. Set the DMM dial to Ohms (resistance) or continuity check.
2. Connect wires S1 and S3 to the DMM.
The DMM should indicate an open circuit or no resistance.
3. Apply a control signal (24 Vac) to wires 1 (red) and 6 (violet).
The DMM should indicate contact closure as the actuator shaft coupling
reaches the setting of switch A.
4. Stop applying a control signal to wires 1 (red) and 6 (violet).
5. Connect wires S1 and S2 to the DMM.
The DMM should indicate an open circuit or no resistance.

Technical Instructions OpenAir ™Non-Spring Return Rotary Electric Damper Actuator
Document No. 155-188P25 24 Vac 3-position Control
Rev. 3, August, 2001
Page 10 Siemens Building Technologies, Inc.
Start-Up/
Commissioning,
continued
6. Apply a control signal (24 Vac) to wires 1 (red) and 7 (orange).
The DMM should indicate contact closure as the actuator shaft coupling
reaches the setting of switch A.
Check the Auxiliary Switch B:
1. Set the DMM dial to Ohms (resistance) or continuity check.
2. Connect wires S4 and S6 to the DMM.
The DMM should indicate an open circuit or no resistance.
3. Apply a control signal (24 Vac) to wires 1 (red) and 6 (violet).
The DMM should indicate contact closure as the actuator shaft coupling
reaches the setting of switch B.
4. Stop applying a control signal to wires 1 (red) and 6 (violet).
5. Connect wires S4 and S5 to the DMM.
The DMM should indicate an open circuit or no resistance.
6. Apply a control signal (24 Vac) to wires 1 (red) and 7 (orange).
The DMM should indicate contact closure as the actuator shaft coupling
reaches the setting of switch B.
Service
WARNING:
Do not open the actuator.
If the actuator is inoperative, replace the unit.