Greenheck 331-2968 User Manual

SELECTING AN ACTUATOR

Step 1

Determine if the actuators need to be electric, pneumatic, or manual.

Step 2

If the actuators are to be electric, determine what voltage (120 Vac, 24 Vac, etc.) and what Hertz (50 or 60

cycles/sec.) are required . If the voltage requirement is not the same as the actuator, (i.e. the motor is 120 Vac and the requirement is 460 Vac) a transformer is needed. Pneumatic actuators require 20 psi supply.

Step 3

If the actuator is manual, then refer to the 'Manual Hand Quadrant' section on Page 3.

Step 4

If the actuator is either electric or pneumatic, then the operation type must be determined:

1) Two position – spring return See tables on following pages

2) Two position (power open – power closed) See tables on following pages

3) Floating (power open – power closed) See tables on following pages

4) Modulating – spring return See tables on following pages

5) Modulating (power open – power closed) See tables on following pages

1) Two position – spring return: This type of actuator will power to either the open or the closed position. When the power supply is removed (or turned off), the actuator will fail to the initial position by means of a spring.

2) Two position (power open – power closed): This type of actuator will power in either direction. When the power supply is removed (or turned off), the actuator will fail in place.

3) Floating (power open – power closed): This type of actuator is powered in both directions and will stop in any position. No spring is used.

4) Modulating – spring return: This type of actuator will power in either direction and will spring return upon power loss much like the two position actuators. The difference is that a control signal (4-20 mAdc, 0-10 Vdc, etc.) is used. The control signal acts much like a valve; as the signal is increased or decreased, the actuator will open or close or vice versa.

5) Modulating (power open – power closed): This type of actuator is the same as #3, except for its response to a control signal input (4-20 mAdc, 0-10 Vdc, etc.).

Step 5

If the actuator is pneumatic and needs to be modulating, a pilot positioner is required. A pilot positioner uses

the control signal (usually 3-15 psi) to vary the amount of supply pressure entering the actuator. Please note that the use of a pilot positioner will decrease the square foot rating of the actuator by 20%. Consult factory.

Step 6

Once the actuator operation is determined, then the fail position must be known. There are two options:

1) Power open – fail close

2) Power close – fail open

* If a non-spring return actuator is required, then the fail positions above

would become "fail in place."

Step 7

Auxiliary Switch – Separate switch in actuator which can be wired to either

make a circuit (Normally Open) or break a circuit (Normally Closed) when actuated. Switch is at end of power stroke for Siebe (Barber-Colman); actuation point is adjustable in Belimo.

Common

Step 8

Determine if the actuator is to be:

1) Internally mounted: The actuator is mounted in the airstream.

2) Externally mounted: The actuator is mounted out of the airstream at factory in a sleeve or external sidplate

3) External kit: The actuator is installed out of the airstream in the field.

Step 9

At this point there may be more than one actuator from which to choose. So the final step is to determine

which actuator will best operate the damper sizes needed. An actuator selection table is found on the following pages. If you need assistance, contact your local representative or Greenheck.

Normally Closed

Normally Open

Actuator Selection for Control Dampers

VCD Actuator Limitations

Model Volt. Freq Torque With Without

TF-24 TF-24S FSLF-24 FSLF-24S LF-24 LF-24S FSNF-24 FSNF-24S AF-24 AF-24S FSAF-24 TF-120 TF-120S FSLF-120 FSLF-120S LF-120 LF-120S FSNF-120 FSNF-120S AF-120

F-120S FSLF-230 FSLF-230S FSNF-230 FSNF-230S AF-230 A F-230S

ML8202F1006 30 7 12 383264 See Page 4 ML8302F1004 30 7 12 383265 See Page 4 MS8105A1130 44 7 12 384189 -MS8209F1003 80 12 20 382733 ACT-MS8209-24V MS8309F1001 80 12 20 382734 ACT-MS8309-24V MS8110A1206 88 12 20 includes auxiliary SPDT end switches 383818 -MS8120F1002 175 25 50 382824 880349 MS8120F1200 175 25 50 includes auxiliary SPDT end switches 383255 831682 ML4202F1000 30 7 12 383260 See Page 4 ML4302F1008 30 7 12 383261 See Page 4 MS4209F1007 80 12 20 382731 See Page 4 MS4309F1005 80 12 20 382732 See Page 4 MS4120F1006 175 25 50 382823 880347 MS4120F1204 175 25 50 includes auxiliary SPDT end switches 383024 831681 ML4702F1009 30 7 12 383262 829879 ML4802F1007 30 7 12 383263 829878 MS4709F1014 80 12 20 382735 ACT-MS4709-230V MS4809F1012 80 12 20 382736 ACT-MS4809-230V MS4620F1005 175 25 50 382825 880348 MS4620F1203 175 25 50 includes auxiliary SPDT end switches 383254 831683

MA-305 MA-305-500 MA-318 MA-318-500 MA6-318-500 MA-405 MA-405-500 MA-418 MA-418-500 MA6-418-500 MA-419 60 MA-419-500 60 MA5-419 50 MA5-419-500 50 MA6-419-500 60 MA7-419-500 50

GGD221.1U 120 50/60 GGD121.1U 24 50/60 GGD321.1U 240 50/60

24 50/60 24 in.

120 50/60 24 in.

230 50/60 24 in.

24 50/60 24 in.

120

230

24 60 24 in.

120

240

(in. lbs.)

(Hz)

18 18 30 30 35 35 70

70 133 133 133

70 133 133

60 24 in.

50/60 24 in.

142 142 142

60 24 in.

Max. Damper Sq/Ft

Seals Seals Diameter (includes actuator)

4.5 9 384237

4.5 9 includes auxiliary SPDT end switches 384238 7 12 383241 832778 7 12 includes auxiliary SPDT end switches 383394 832779 7 12 381724 ACT-LF24 7 12 includes auxiliary SPDT end switches 381725 ACT-LF24S

12 20 382889 ACT-FSNF24 12 20 includes auxiliary SPDT end switches 382966 ACT-FSNF24S 25 50 381085 ACT-AF24 25 50 includes auxiliary SPDT end switches 381152 ACT-AF24S 25 50 383413 383413

4.5 9 384241

4.5 9 includes auxiliary SPDT end switches 384236 7 12 383242 832776 7 12 includes auxiliary SPDT end switches 383392 832777 7 12 381722 ACT-LF120 7 12 includes auxiliary SPDT end switches 381723 ACT-LF120S

12 20 382888 ACT-FSNF120 12 20 includes auxiliary SPDT end switches 382965 ACT-FSNF120S 25 50 381087 ACT-AF120 25 50 includes auxiliary SPDT end switches 381151

7 12 383399 833249 7 12 includes auxiliary SPDT end switches 383400 833250

12 20 382963 ACT-FSNF230 12 20 includes auxiliary SPDT end switches 382964 ACT-FSNF230S 25 50 381598 ACT-AF230 25 50 includes auxiliary SPDT end switches 381599 A CT-AF230S

6 12 380712 ACT-MA305-24V 6 12 Includes SPDT end switch 380720 ACT-MA305-500-24V

25 50 380713 ACT-MA318-24V 25 50 Includes SPDT end switch 380721 ACT-MA318-500-24V 25 50 Explosion proof enclosure with end switch 381661 A CT-MA6318500-24V

6 12 380708 ACT-MA405-120V 6 12 Includes SPDT end switch 380722 ACT-MA405-500-120V

25 50 380709 ACT-MA418-120V 25 50 Includes SPDT end switch 380723 ACT-MA418-500-120V 25 50 Explosion proof enclosure with end switch 380806 A CT-MA6418500-120V 25 50 380813 ACT-MA419-230V 25 50 Includes SPDT end switch 381593 ACT-MA419-500-240V 25 50 381205 ACT-MA5-419-220V 25 50 Includes SPDT end switch 381594 ACT-MA5419500-240V 25 50 Explosion proof enclosure with end switch 381595 ACT-MA6419500-240V 25 50 Explosion proof enclosure with end switch 381597 A CT-MA7419500-240V

25 50 24" 382188 ACT-GGD221.1U-115V 25 50 24" 382279 ACT-GGD121.1U-24V 25 50 24" 382737 ACT-GGD321.1U-230V

Electric

VCDR Actuator External Mount

Maximum Description Part # Actuator Kit #

Two-position Spring Return

Belimo

Honeywell

Invensys (TAC)

24 in.

Siemens

CTAF120S

Consult factory for actuator applications on UL rated ﬁre and smoke dampers.

NEMA 4, 4X & NEMA 7 housing are available.

Unless otherwise speciﬁed, spring return actuators will be linked "power open - fail closed" which is also called "normally closed" or "NC". If "power closed - fail open" operation is desired, be sure to indicate this requirement. "Power closed - fail open" is also referred to as "normally open" or "NO".

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