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

90˚

45˚

EA1012R1

8,9

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

-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

Figure 3. Adjustable Switching Values for

the dual auxiliary Switches.

80 70 60

2010

AUX SWITCH

ADJUSTMENT

A˚

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.

EA0534R1

MANUAL

AUTO

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°

EA0535R1

3 mm

45°

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.

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

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

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.

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