Siemens OpenAir GIB132.1P Manuale del proprietario

Technical Instructions

Document Number 155-177P25

EA GBB/GIB-2

December 15, 2004

OpenAir™ GBB/GIB Series

Electronic Damper Actuators

Non-spring Return Rotary 24 Vac 3-position Control

Description The OpenAir direct coupled 24 Vac non-spring return (NSR) rotary electric

actuator is designed for three-position (floating) control of building HVAC

dampers.

Features • Unique self-centering shaft coupling

• All metal housing

• Manual override

• Independently adjustable dual auxiliary switches available

• Built in potentiometer option

• Two torque ranges available

• UL, CE and cUL listed

Application These actuators are used in constant or variable air volume installations for

the control of return air, mixed air, exhaust, and face and bypass dampers

requiring up to 221 lb-in (25 Nm) or 310 lb-in (35 Nm) torque.

Product Numbers

Table 1.

24 Vac Operating Voltage

Torque Cabling Standard

Potentiometer

Only

Auxiliary

Switches

Only

Standard GBB131.1U GBB132.1U GBB136.1U

221 lb-in (25 Nm) Plenum GBB131.1P GBB132.1P GBB136.1P

Standard GIB131.1U GIB132.1U GIB136.1U

310 lb-in (35 Nm) Plenum GIB131.1P GIB132.1P GIB136.1P

Siemens Building Technologies, Inc.

Technical Instructions OpenAirTM NSR Rotary Electric Damper Actuator

Document No. 155-177P25 24 Vac 3-position Control

December 15, 2004

Warning/Caution Notations

WARNING:

Personal injury/loss of life may occur if you do not perform a procedure

as specified.

CAUTION:

Equipment damage or loss of data may occur if you do not follow a

procedure as specified.

Specifications

Power supply

Operating voltage 24 Vac, ±20%

Frequency 50/60 Hz

Power consumption: 7 VA/7W

Equipment rating Operating voltage Class 2, in accordance with UL/CSA

Plenum type actuators as whole device Class 2, in accordance with UL/CSA

Auxiliary features Feedback potentiometer (GBB132x)

Sliding contact (P2) 0 to 1000 ohm

Load <1W

Voltage <24 Vac/dc

Control signal adjustment

Offset (start point) Between 0 to 5 Vdc

Factory setting 0 Vdc

Span Between 2 to 30 Vdc

Dual auxiliary switches

AC rating (standard cable) 24 to 250 Vac

AC 6A resistive

AC 2A general purpose

AC rating (Plenum cable) 24 Vac

AC 4A resistive

AC 2A general purpose

DC rating (Standard/Plenum cable) 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°

WARNING:

Apply only line voltage or only Class 2 voltage to the switching outputs of both

auxiliary switches A and B. Mixed operation is not permissible. See Wiring for details.

Page 2 Siemens Building Technologies, Inc.

OpenAirTM NSR Rotary Electric Damper Actuator Technical Instructions

24 Vac 3-position Control 155-177P25

December 15, 2004

Specifications,

continued

Function

Running torque

GBB… 221 lb-in (25 Nm)

GIB… 310 lb-in (35 Nm)

Runtime for 90° opening or closing 150 seconds at 50 Hz

125 seconds at 60 Hz

Nominal angle of rotation 90°

Maximum angular rotation 95°

Mounting Shaft size 3/8 to 1-inch (8 to 25.6 mm) diameter

1/4 to 5/8-inch (6 to 18 mm) square

Minimum shaft length 3/4-inch (20 mm)

Housing Enclosure NEMA 2 in vertical position to 90°

to the left and right of vertical

See Figure 13.

NEMA 3R rated when installed with

ASK75.1U Weather Shield in the

vertical position. See Accessories.

IP54 according to EN60529

Material Die cast aluminum alloy

Gear lubrication Silicone-free

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

CE conformity:

Electromagnetic compatibility 89/336/EEC

Low-voltage directive 73/23/EEC

Miscellaneous Pre-cabled connection 18 AWG

Cable length 3 feet (0.9 m) length

Life cycle Designed for over 60,000 full strokes

and a minimum of 1.5 million

repositions at rated torque and

temperature

Noise level <45 dBA (running)

Dimensions See Figure 24.

Weight 4.4 lbs (2 kg)

Siemens Building Technologies, Inc. Page 3

Technical Instructions OpenAirTM NSR Rotary Electric Damper Actuator

Document No. 155-177P25 24 Vac 3-position Control

December 15, 2004

Accessories NOTE: Neither the auxiliary switches nor the feedback potentiometer can be added in

the field. Order the product number that includes these options.

EA0477R2

(4 each)

Figure 1. Floor Mount Kit.

ASK71.1U: Allows foot mounting of the

OpenAir actuators. Kit should be used for

in-the-air stream applications or anywhere

a foot-mounted actuator can be mounted.

Kit contains:

• Crank arm for changing angular

rotation into a linear stroke

• Support bearing ring to minimize

side loading on the actuator’s output

bearing

• Mounting bracket

• Required mounting fasteners

EA0476R2

Figure 2. Frame Mount Kit.

ASK71.2U: Allows mounting of OpenAir

actuators directly to a damper frame. Kit

should be used with louvers and vents

and in applications where use of the floor

mount kit is not possible.

Kit contains:

• Crank arm to change the angular

rotation into a linear stroke

• Support bearing ring to minimize

side loading on the actuator’s output

bearing

• Mounting bracket

• Required mounting fasteners

EA0495R1

Figure 3. Crank Arm Kit.

ASK71.3: Allows a direct-coupled actuato

to provide an auxiliary linear drive. Kit can

be used to simultaneously drive a set of

opposing or adjacent dampers with a

single actuator.

Kit contains:

• Crank arm to attach to the splined

hub of the shaft adapter

• Required mounting fasteners

EA0494R1

Figure 4. Crank Arm Kit with Mounting

Bracket.

ASK71.4: Allows economical mounting of

an OpenAir actuator to a variety of

surfaces. Kit should be used in

applications where the actuator can be

rigidly surface mounted and a linear

stroke output is required. Kit contains:

• Crank arm to attach to the splined

hub of the shaft adapter

• Mounting bracket

• Required mounting fasteners

Page 4 Siemens Building Technologies, Inc.

OpenAirTM NSR Rotary Electric Damper Actuator Technical Instructions

24 Vac 3-position Control 155-177P25

December 15, 2004

Accessories,

continued

Figure 5. Tandem Mount Bracket.

ASK73.1: Bracket provides an extended

anti-rotation pin that allows two GIB13x

OpenAir actuators to directly drive a single

damper shaft. For use with three-position

actuators.

EA0497R1

Figure 6. Special Shaft Adapter.

ASK74.1U: Shaft adapter attaches to a

1.05-inch (26.6 mm) diameter shaft;

whereas, the standard self-centering

adapter accepts up to a 1.00-inch

(25.4 mm) diameter shaft.

Adapter can be used for coupling to

1-inch (25 mm) jackshafts that are slightly

oversized. Adapter is 13/16-inches (20

mm) shorter than the height of the self-

centering shaft adapter

985-052P20: (no picture) Small shaft

insert (package of 20) when using the GIB

actuator on a damper shaft less than

3/4-inch (20 mm) diameter.

EA0845R1

(14)

Figure 7. Weather Shield.

ASK75.1U: GBB/GIB actuators are UL

listed to meet NEMA 3R requirements (a

degree of protection against rain, sleet,

and damage from external ice formation)

when installed with the ASK75.1U

Weather Shield and outdoor-rated

conduit fittings in the vertical position.

For dimensions, see Figure 23.

Heating

Element

Thermostat

EA0992R1

Figure 8. Heater/Weather

Shield Assembly.

985-106: Provides protection for GIB,

GBB and GCA OpenAir actuators in an

outside low temperature. Assembly

includes:

• Weather Shield (ASK75.1U)

• Heater Kit (985-105)

EA1059R1

Figure 9. Conduit Adapter.

985-008: 1/2-inch (12 mm) for

1/2-inch NPT connector.

EA0496R1

Siemens Building Technologies, Inc. Page 5

Technical Instructions OpenAirTM NSR Rotary Electric Damper Actuator

Document No. 155-177P25 24 Vac 3-position Control

December 15, 2004

Service Parts

EA0499R1

EA0498R1

EA0500R1

985-003

Position Indicators

(package of 10)

985-004

Standard Shaft Adapter

985-006

Anti-rotation (Mounting) Bracket

Figure 10. Orderable Parts.

Actuator

Components

EA0376R1

PUSH

EA1151R1

Legend

1. Positioning scale for angle of

rotation

2. Connection cables

3. Manual override

4. Auxiliary switch B

5. Auxiliary switch A

6. Position indicator

7. Self-centering shaft adapter

8. Shaft adapter locking clip

9. Position indicator adapter

10. Mounting bracket

Figure 11. Components of the 3-Position Actuator.

Page 6 Siemens Building Technologies, Inc.

OpenAirTM NSR Rotary Electric Damper Actuator Technical Instructions

24 Vac 3-position Control 155-177P25

December 15, 2004

Operation

GBB/GIB13x

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.

If you want to reverse the direction of rotation, wires 6 and 7 (Y1 and Y2) may be

interchanged. Reverse the position indicator so that the counterclockwise 0 to 90 scale

is visible. See Figure 16.

In the event of a power failure or with no control voltage, the damper actuator holds its

position.

In the event of a blockage in the damper, the actuator is overload protected over the full

range to prevent damage to the actuator.

Life expectancy An improperly tuned loop will cause excessive repositioning that will shorten the life of

the actuator.

Dual auxiliary switch

GBB/GIB136

-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

Actuator Scale:

clockwise

Adjustment range for Switches A and B

Setting interval: 5°

Switching hysteresis: 2°

Actuator Scale:

Counterclockwise

NOTE: The auxiliary switch setting shafts turn together with the actuator. The scales

are valid only when the actuator is in the “0” position on clockwise motion.

To change the settings of A and B, use a

flat-blade screwdriver to turn the switch

adjustment dials to the desired setting at

which a signal is to be given.

Factory setting

Switch A 5°

Switch B 85°

AUX

SWITCH

ADJ 20

EA0304R1

Figure 12. Dual Auxiliary Switch Dials.

Siemens Building Technologies, Inc. Page 7

Technical Instructions OpenAirTM NSR Rotary Electric Damper Actuator

Document No. 155-177P25 24 Vac 3-position Control

December 15, 2004

Sizing The number of actuators required depends on several factors. To determine the

quantity of actuators required for the installation:

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 = Torque Rating × Damper Area

4. Select the total quantity of actuators required:

Number of actuators = ions)Specificatto(ReferTorquetorx ActuaSF

requiredTorqueDamperTotal

1Safety Factor: When calculating the number of actuators 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).

Mechanical coupling of the actuator is allowed if:

1. The same type of actuator is used.

2. The power trunk can handle added components.

3. The same power and control inputs go to both actuators (parallel wiring).

Mounting and

Installation

NEMA 2

EA1104R1

Figure 13. Acceptable NEMA 2 positions.

• The actuator must be placed on the damper shaft so that the front of the actuator is

accessible. The label and the manual override button are the front side.

• The minimum damper drive shaft length is 3/4-inch (20 mm). The shaft length

determines whether the shaft adapter will be mounted on the front or back side of

the actuator.

• See Specifications for minimum and maximum damper shaft dimensions.

• Mount the position indicator to show either the clockwise or counterclockwise 0 to

90 scale.

• A mounting bracket is included with the actuator.

- Detailed mounting instructions are included with each actuator.

- The shaft adapter and mounting parts are shipped in a separate container with

the actuator.

• The actuator is shipped from the factory with a 5° pre-load to ensure tight close off

of the damper.

Page 8 Siemens Building Technologies, Inc.

OpenAirTM NSR Rotary Electric Damper Actuator Technical Instructions

24 Vac 3-position Control 155-177P25

December 15, 2004

Manual override To move the damper blades and

lock the position with no power

present:

1. Determine damper rotation:

clockwise or counterclockwise.

2. Hold down the PUSH button.

3. Make adjustments to the damper

position.

4. Release the PUSH button.

Once power is restored, the actuator

returns to automated control.

Figure 14. Manual Override.

Mechanical range

adjustment

The angular rotation is adjustable between 0 and

90° at 5-degree intervals. The range of shaft

movement is limited by mounting the shaft

adapter:

Begin by loosening the shaft adapter from the

damper shaft and remove the actuator from the

damper shaft.

1. Remove clip.

2. Remove shaft adapter from the actuator.

Figure 15.

EA0648R1

PUSH

EA0649R1

PUSH

EA0650R1

PUSH

Figure 16. Figure 17. Figure 18.

3. Return the actuator gear train to the “0” position using the following steps for the

clockwise or counterclockwise damper shaft rotation.

Clockwise-to-open:

a. Insert the shaft adapter to the right as close as possible to the raised stop.

See Figure 16.

b. Hold down the PUSH button and rotate the shaft adapter to the left until it

stops. See Figure 17.

c. Release the PUSH button.

d. If the shaft adapter is not resting against the left raised stop, remove the

adapter and insert it against the left stop.

e. Place the position indicator to the "0" position on the outside scale. See

Figure 18.

EA0360R1

PUSH

L > 3 in.

77mm L < 3 in.

77mm

PUSH

EA0305R2

PUSH

Siemens Building Technologies, Inc. Page 9

Technical Instructions OpenAirTM NSR Rotary Electric Damper Actuator

Document No. 155-177P25 24 Vac 3-position Control

December 15, 2004

Mechanical range

adjustment, continued

Counterclockwise-to-open:

a. Insert the shaft adapter to the left as close as possible to the raised stop.

b. Hold down the PUSH button and rotate the shaft adapter to the right until it

stops.

c. Release the PUSH button.

d. If the shaft adapter is not resting against the right raised stop, remove the

adapter and insert it against the right stop.

e. Place the position indicator to “0” on the inside scale.

4. Determine the angle of rotation for the damper blade shaft. Subtract that amount

from 90°.

5. Remove the shaft adapter and insert it with the position indicator pointing to the

mark on the scale calculated in the previous step. See Figure 19.

6. Attach the clip.

7. Rotate the damper blade shaft to its "0" position.

8. Return the actuator to the damper shaft and tighten the shaft adapter to the damper

shaft.

EA0651R1

PUSH

Figure 19. Mechanical Range Adjustment.

Reversing the position

indicator Reverse the position indicator so that the counterclockwise 0 to 90 scale is visible.

Figure 20. Position Indicator.

EA0551R1

POSITION

INDICATOR

Page 10 Siemens Building Technologies, Inc.

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