product information gm-3 gm damper actuators

BC

2. GM-3Product InformationDamper actuators GGMM

Actuators for heating,ventilation, air-conditioning

i002

9901

i002

9901

2

The complete range of damper actuators for general use in HVAC systems

For more information, please contact your Belimo Representative or order any brochures you need by fax.

Fax to: BELIMO (address overleaf)

Please send us product brochures on the following damper actuators:

LM... NM... SM... AM... LF... AF... Electrical accessories

Please also send information on:

Motorized fire and smoke dampers Variable air-volume control (VAV-Control)

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1.5 m2

–

8 Nm

NM AFGM

15 Nm30 Nm

3 m26 m2

–

Type

Torq

ueS

prin

g r

etur

nfu

nctio

nF

or

dam

per

sup

to

ap

pro

x.

LM

4 Nm

0.8 m2

–

SM

15 Nm

3 m2

–

AM

18 Nm

3.6 m2

–

LF

4 Nm

0.8 m2

EN

G-9

3001

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24-0

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BC

i010

0805

3

EN

G-9

3001

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7.99

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GM24-SR

GM240GM220

GM24

Nominal voltage AC 24 V • •DC 24 V •AC 230 V • •

Running time 135 s ± 15 s • •≈ 180 s • •

Control Open/Close Single-wire •2-wire • • •

Modulating DC 0...10 V or 0...20 V phasecut •Direction of rotation reversible (right/left) • • • •Manual operation by pushbutton • • • •Continuous position feedback •

Note

Using BELIMO damper actuatorsThe actuators listed in this catalogue are in-tended for the operation of air dampers in HVAC systems.

Torque requirementsWhen calculating the torque required to operatedampers, it is essential to take into account allthe data supplied by the damper manufacturerconcerning cross sectional area, design, mount-ing and air flow conditions.

Selection table

Torque 30 Nm

GM24 4

GM220, GM240 5

Damper actuators, Open/Close

Damper actuator, modulating

GM24-SR 6

Mechanical accessories

Damper linkage kit 11

Limit stop 11

Mounting instructions 12

Electrical accessories

S1, S2 Auxiliary switches 8

SZS Mid-position switch 9

P... Feedback potentiometer 10

Control/monitoring functions GM24-SR 7

ContentsBC

EN

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GM24 Damper actuator 30 Nm

4

Dampers up to approx. 6 m2

Open/Close actuator (AC/DC 24 V)

Reversible

Improved functional safetyThe damper actuator has no limit switches and is overload-proof. It stopsautomatically when it reaches the damper or actuator end stop.

Easy functional checkA functional check of damper operationis simplicity itself: the gearing can be dis-engaged by simply pressing a pushbut-ton on top of the case. While the push-button remains depressed, the dampercan be operated by hand.

Simple installationThe damper actuator is fitted with a uni-versal spindle clamp for quick and easymounting directly on the damper spindle.The actuator is supplied with an anti-rotation strap for fixing it in position.

Electrical accessoriesS1, S2 Auxiliary switches, page 8SZS Mid-position switch, page 9P… Feedback potentiometer,

page 10

Mechanical accessoriesZG-GM2 Damper linkage kit, page 11ZDB-GM Limit stop, page 11

Mounting instructions, page 12

ImportantRead the notes about the use and torquerequirements of the damper actuators onpage 3.

Nominal voltage AC 24 V 50/60 Hz, DC 24 V

Nominal voltage range AC 19.2...28.8 V, DC 21.6...26.4 V

Technical data GM24

For wire sizing 6 VA

Power consumption 3 W running, 1 W at end position

Connecting cable 0.9 m long, 3×0.75 mm2

Direction of rotation reversible with switch A/B

Torque min. 30 Nm (at rated voltage)

Angle of rotation mechanically limited to 95°

Running time 135 s ± 15 s

Sound power level max. 45 dB(A)

Position indication 0…10 (0 = stop ) and reversible indicator

Protection class (safety extra-low voltage)

Degree of protection IP 54 (bottem cable entry)

Ambient temperature range – 30… + 50 °CNon-operating temperature – 40… + 80 °CHumidity test to EN 60335-1

EMC CE according to 89/336/EEC, 92/31/EEC, 93/68/EEC

Maintenance maintenance free

Weight 2000 g

Dimensions

Wiring diagram

Connect via safetyisolating transformer.!

AC 24 VDC 24 V

1 2 3

GM24Parallel connection of several actuatorsis possible. Power consumption mustbe observed.

- +

T ~

AC 24 VDC 24 V

Single-wire control 2-wire control

- +

T ~1 2 3

GM24

w03

6080

5p

0015

707

01

10

5

123

45

67

8

9

A

Y-0

B

212.529

124

2653.5

78

12…209…16

d00

0790

1

BC

III

EMC CE according to 89/336/EEC, 92/31/EEC, 93/68/EECLow Voltage Directive CE according to 73/23/EEC

Maintenance maintenance free

Weight 2000 gEN

G-9

3001

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24-0

7.99

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5

GM220, GM240 Damper actuators 30 Nm


Open/Close actuator (AC 230 V)

2-wire control

Improved functional safetyThe damper actuator has no limitswitches and is overload-proof. It stopsautomatically when it reaches thedamper or actuator end stop.



Electrical accessoriesS1, S2 Auxiliary switches, page 8SZS Mid-position switch, page 9P… Feedback potentiometer,

page 10




Technical data GM220, GM240

Nominal voltage AC 230 V 50/60 Hz

Nominal voltage range AC 198…264 V

For wire sizing 10 VA @ 50 Hz, 13 VA @ 60 Hz

Power consumption 10 W @ 50 Hz, 13 W @ 60 Hz

Connecting cable 0.9 m long, 4×0.75 mm2

Direction of rotation reversible with switch A/B

Torque min. 30 Nm (at rated voltage)

Angle of rotation mechanically limited to 95°

Running time ≈ 180 s

Sound power level max. 45 dB(A)

Position indication 0…10 (0 = stop ) and reversible indicator

Protection class I (with PE conductor)

Degree of protection IP 54 (bottom cable entry)


Wiring diagram

AC 230 V

Parallel connection of severalactuators is possible (up to 20).

1 2 3

N L1

GM220, GM240

To isolate from the main power supply, the systemmust incorporate a device which disconnects the phaseconductors (with at least a 3 mm contact gap).

Dimensions

w03

6180

5p

0015

707

01

10

5

123

45

67

8

9

A

Y-0

B

212.529

124

2653.5

78

12…209…16

d00

0790

1

BC


Modulating damper actuator(AC 24 V)

Control DC 0…10 V or 0…20 Vphasecut

Position feedback DC 2…10 V

Versatility of controlCombining two different methods of con-trol in a single damper actuator ensuresgreater flexibility at the planning stage.

Improved functional safetyThe damper actuator has no limit switches and is overload-proof. It stopsautomatically when it reaches the damper or actuator end stop.



Electrical accessories* (see Doc. 2. Z-…)S1, S2 Auxiliary switches, page 8P… Feedback potentiometer,

page 10*SG…24 Positioners*ZAD24 Digital position indicator


Control and monitoring functions, p. 7



6

EN

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GM24-SR Damper actuator 30 Nm

Technical data GM24-SR

Nominal voltage AC 24 V 50/60 HzNominal voltage range AC 19.2...28.8 VFor wire sizing 7 VAPower consumption 3 W running, 2 W at restConnecting cable 0.9 m long, 5×0.75 mm2

Control signal Y1 DC 0…10 V @ input resistance 100 kΩ (0.1 mA)Control signal Y2 0…20 V phasecut @ input resistance 8 kΩ (50 mW)

Operating range DC 2…10 V (at control signal Y1)2…10 V phasecut (at control signal Y2)

Measuring voltage U DC 2…10 V @ max. 0.5 mA (for 0…100% angle of rotation)

Synchronisation tolerance ± 5%Direction of rotation reversible with switch A/B(at Y = 0 V) at switch position A resp. BTorque min. 30 Nm (at rated voltage)

Angle of rotation mechanically limited to 95°Running time 135 s ± 15 sSound power level max. 45 dB(A)Position indication 0…10 (0 = stop ) and reversible indicator Protection class (safety low voltage)

Degree of protection IP 54 (bottom cable entry)


EMC CE according to 89/336/EEC, 92/31/EEC, 93/68/EECMaintenance maintenance freeWeight 2000 g

Wiring diagram

Control manufacturers: ABB, AEG, Bälz, Centra, Con-trolli, C.S.I., Danfoss, DIGI’Control, Elesta, GA, H.C.System, Honeywell, Inel, IWK, Johnson, Kieback & Peter,Landis & Staefa, Messner, Priva, RAM, R+S, Samson,Satchwell, Sauter, SE-Electronic, Siemens, TA, Trend.

Y DC 0...10 V

AC 24 V Connect via safetyisolating transformer.!

Y UT ~

1 2 3 4

T ~

U DC 2...10 V

GM24-SR

Measuring voltage U for position indicationor as master-slave control signal.

Parallel connection of several actuators ispossible. Note power consumption data.

5

Y 0...20 V

1

phasecut2

1 Y2

Landis & Staefa Inel Geamatic

For minimum position and override controlconsult manufacturers’ literature.

Dimensions

w03

6280

5p

0016

707

01

10

5

123

45

67

8

9

A

Y-0

B

212.529

124

2653.5

78

12…209…16

d00

0890

1

BC

III

EN

G-9

3001

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24-0

7.99

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Control and monitoring functions GM24-SR

7

1 2 3

T ~

Function monitoring

AC 24 V

GM24-SR

54

Y U

T ~

1 Y2

Y1

T ~

1 2 3

T ~

Position indication and/or master-slave control (depending on position)

AC 24 V

GM24-SR

5

Positioner

Y1

T ~

1 2 3

GM24-SR

5

to next actuator

Masteractuator

Note ±5% synchronisationtolerance between actuators

Slaveactuator

Master-slave control

Y1

T ~

1 2 3

T ~

Remote control 0...100%

1 2 3SGA24, SGF24SGE24

Positioner4

Y

T ~

Z

GM24-SR

Parallel connection of furtheractuators is possible (up to 10).

Y1

T ~

1 2 3

T ~

1 2 3SGA24, SGF24SGE24

Positioner4

Y

T ~

Z

GM24-SR

Parallel connection of furtheractuators is possible (up to 10).

Minimum position

Y DC 0...10 V(from controller)

100%Angle of rotation

0%

Y [ V ]

10 V

min.

0 V

AC 24 VAC 24 V

YT ~

1 2 3

T ~

Override control

AC 24 V

GM24-SR

Parallel connecting of further actuators ispossible. Note power consumption data.

Y DC 0...10 V

1 2 3

T ~AC 24 V

GM24-SR

Parallel connecting of further actuators ispossible. Note power consumption data.

ab

Y UT ~

1 Y2

4 5

Y 0...20 Vphasecut

ab

1

Connect via safetyisolating transformer!






a b

control mode

Reversingswitch B

Reversingswitch A

Disconnect terminal 3 and/or 4:

Procedure

AC 24 V at terminals 1 and 2

link terminals 2 and 3 or 2 and 4:– actuator runs in the opposite direction

– For direction of rotation "A": actuator runs

– For direction of rotation "B": actuator runs

Y DC 0...10 Vw

0364

805

BC

EN

G-9

3001

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24-0

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8

S1, S2 Auxiliary switches

Compatible with GM… andSM… damper actuators(SM…: see documentation 2.SM-…)

ApplicationThe auxiliary switch units S1 and S2 areintended for the signalling of end posi-tions or for performing switching func-tions at any angular position.

Easy switch settingA spindle provides a positive drive to theswitch mechanism from the rotary motionof the damper actuator. The switchingpoints of the microswitches can be setanywhere in the range from 0 to 10 bymeans of a dial and are then locked witha screw. The switch position can be readoff at any time.

Simple installationThe auxiliary switch units S1 and S2 aresuitable for direct mounting on TypeGM… damper actuators or on Type P…feedback potentiometers. (The stack-mounting of two auxiliary switch units orof one unit and a Type SZS mid-positionswitch unit is not possible.)Four extra-long screws are supplied formounting the unit on Type GM24-SR andP… equipment.

Switch setting1. Turn the damper actuator by hand to

position 0.2. Loosen the locking screw in the centre

of the setting dial.3. Rotate the dial until the arrow is point-

ing at the required switching point onthe scale (0…10).

4. Re-tighten the locking screw.5. Check the switching points by manual

operation of the actuator; the settingdial turns at the same time. Themicroswitches operate whenever thearrow passes position 0 or 10 (whitelines). The symbols indicate the re-spective switch positions.

NoteThe reversible indicator plate andthe pointer must be removed when usingan auxiliary switch unit S1, S2.

Number of switches 1×SPDT 2×SPDT

Switching capacity 6 A (2.5 A) AC 250 V

Connecting cable 0.9 m, 3×0.75 mm2 0.9 m, 6×0.75 mm2

Switching point Adjustable over full actuator rotation 0...10.Pre-setting by scale possible, settings lockable.

Protection class II (all-insulated)

Degree of protection IP 54


Technical data S1 S2

Weight 150 g 210 g

Wiring diagram

S1

S1 S2 S3

S2

S1 S2 S3 S4 S5 S6

w00

1970

7p

0012

707

m00

1170

7

BC

EN

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SZS Mid-position switch

Compatible with GM24, GM220, GM240 and SM24, SM220, SM240 damperactuators(SM…: see documentation 2.SM-…)

ApplicationThe SZS mid-position switch unit allowsany required intermediate position to bepreset.

Easy switch settingA spindle provides a positive drive to theswitch mechanism from the rotary motionof the damper actuator. The switchingpoints of the microswitches can be setanywhere in the range from 0 to 10 bymeans of a dial and are then locked witha screw.

Remote controlAs an alternative to using an SZS unit, itis better for many applications to be ableto set the intermediate positions re-motely, e. g. from the switchgear cubicle,instead of at the damper actuator itself.This arrangement requires the use of apositioner and a modulating damper ac-tuator. Another advantage is that it allowsseveral actuators to be connected in par-allel.

Simple installationThe SZS mid-position switch unit is suit-able for direct mounting on Type GM…damper actuators or on Type P… feed-back potentiometers. (The stack-mount-ing of two SZS units or of one SZS unitand a Type S 1 or S 2 auxiliary switch unitis not possible.)

NoteThe reversible indicator plate andthe pointer must be removed when usinga mid-position switch unit SZS.

Technical data SZS

Connecting cable 0.9 m, 3×0.75 mm2

Switching point Adjustable over full actuator rotation 0…10.Pre-setting by scale possible, settings lockable.

Setting accuracy 2° rotation (at clamp)

Protection class II (all-insulated)



Weight 150 g

9

Wiring diagram

AC 230 V

DC 24 VAC 24 V Connect via safety

isolating transformer.!

1 2 3

GM24

- +

T ~

2 3 4

SZS

III 0

I = Mid-positionII = Open

0 = Closed

Direction ofrotation

Parallel connection of furtheractuators is not possible.

The direction of rotation switchmust be set to position A.

N L1

1 2 3

GM220, GM240

2 3 4

SZS

III 0

I = Mid-positionII = Open

0 = Closed

Direction ofrotation

Parallel connection of severalactuators is not possible.

The direction of rotation switchmust be set to position A.

w03

6380

5p

0013

707

m00

1270

7

BC

EN

G-9

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P… Feedback potentiometer

10

Weight 150 g


Resistance data as aboveTolerance ± 5%

Compatible with GM… andSM… damper actuators(SM…: see documentation 2.SM-…)

ApplicationThe feedback potentiometer P… is usedfor the modulating control of dampers inconjunction with proportional action con-trollers with rigid feedback. It can also beused in conjunction with normal commer-cially-available systems for damper posi-tions indication or as a positioner foractuators operating in parallel.

No adjustment neededA spindle transmits the rotary motion ofthe actuator to the potentiometer. It is apositive drive and no adjustment is need-ed. If necessary, two feedback potentio-meters can be mounted on top of eachother.

Simple installationThe Type P… feedback potentiometercan be mounted directly on Type GM…damper actuators or on top of a secondfeedback potentiometer unit. A unit canalso be stack-mounted with a Type S1 orS2 auxiliary switch unit or a Type SZSmid-position switch unit.Four extra-long screws are supplied formounting the unit on Type GM24-SR andP… equipment.

Types Resistance data

P 140 Feedback potentiometer 140 ΩP 200 Feedback potentiometer 200 ΩP 500 Feedback potentiometer 500 ΩP 1000 Feedback potentiometer 1000 ΩP 2000 Feedback potentiometer 2000 ΩP 2800 Feedback potentiometer 2800 Ω

Technical data P…

Rating 1 W

Linearity ± 2%

Resolution 1% min.

Residual resistance max. 5% on both sides

Connecting cable 0.9 m, 3×0.75 mm2


Wiring diagram

P...

P1 P2 P3

100

w00

2170

7p

0014

707

m00

1370

7

BC

ApplicationLimit stop ZDB-GM is used on damperactuators GM… when an angle of rota-tion of less than 90° needs to be limitedmechanically but the damper does nothave a fixed stop on its own.The limit can be set in 10° steps.

Assembly– Fit the limit stop in the required angu-

lar position according to the instruc-tions supplied

ApplicationDamper linkage kit is employed when di-rect actuation of the damper is impos-sible and a linkage must be used.

Kit specification – Front mounting bracket – Rear mounting bracket – Crank arm – 2 ball joints KG10

– 2 bolts M 6 ×16– 7 self-tapping screws

Assembly– Screw the front and rear

mounting brackets to the underside of the actuator baseplate

– Remove the V-bolt– Bolt the crank arm in position– Mount the actuator in a suitable posi-

tion on a secure base with 3 screws– The 3-point fixing and the 10 mm

clearance at the base ensure trouble-free mounting even when themounting surface is irregular

– Adjust and tighten the damper linkageand ball joints

EN

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Mounting accessories for GM...

11

Limit stop ZDB-GM

Damper linkage kit ZG-GM2

3

4

4

1

2

m00

2770

7m

0028

707

BC

Mounting instructions for GM...

EN

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12

Mounting instructions for damper spindles at least 20 mm long or when over-lapping the damper frame.

Preparations– Place the actuator on the damper

spindle– Finger tighten the nuts on the V-bolt– Bend the anti-rotation strap to fit, if

necessary– Fix the strap in position

Mounting and adjustment– Move the damper to the closed

position– Disengage the gears by pressing the

manual override pushbutton on thehousing cover

– Turn the clamp to one division fromthe closed position and allow the gears to re-engage

– Align the actuator at 90° to the damp-er spindle

– Tighten the nuts on the V-bolt

Mounting and adjustment– Disengage the gears by pressing the

manual override pushbutton on thehousing cover

– Turn the clamp to one division fromthe closed position and allow the gears to re-engage

– Remove the clip and take out theclamp

– Slip the clamp onto the damperspindle

– Move the damper to the closedposition

– Fit the actuator onto the clamp– Replace the clip– Bend the anti-rotation strap to fit– Fix the strap in position

Mounting instructions for damper spindles at least 63 mm long.

Notes on both methods of mounting– Select direction of rotation with switch

A/B– The indicator plate is reversible

A

10

5

0

B

GM...: min. 63

9...16

12...20

A

B

m00

2980

5

min.20

9...16

12...20

1

2

m00

3080

5

BC

product information gm-3 gm damper actuators

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