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.
4.59includes auxiliary SPDT end switches384238
712383241832778
712includes auxiliary SPDT end switches383394832779
712381724ACT-LF24
712includes auxiliary SPDT end switches381725ACT-LF24S
1220382889ACT-FSNF24
1220includes auxiliary SPDT end switches382966ACT-FSNF24S
2550381085ACT-AF24
2550includes auxiliary SPDT end switches381152ACT-AF24S
2550383413383413
4.59384241
4.59includes auxiliary SPDT end switches384236
712383242832776
712includes auxiliary SPDT end switches383392832777
712381722ACT-LF120
712includes auxiliary SPDT end switches381723ACT-LF120S
1220382888ACT-FSNF120
1220includes auxiliary SPDT end switches382965ACT-FSNF120S
2550381087ACT-AF120
2550includes auxiliary SPDT end switches381151
712383399833249
712includes auxiliary SPDT end switches383400833250
1220382963ACT-FSNF230
1220includes auxiliary SPDT end switches382964ACT-FSNF230S
2550381598ACT-AF230
2550includes auxiliary SPDT end switches381599A CT-AF230S
612380712ACT-MA305-24V
612Includes SPDT end switch380720ACT-MA305-500-24V
2550380713ACT-MA318-24V
2550Includes SPDT end switch380721ACT-MA318-500-24V
2550Explosion proof enclosure with end switch381661A CT-MA6318500-24V
612380708ACT-MA405-120V
612Includes SPDT end switch380722ACT-MA405-500-120V
2550380709ACT-MA418-120V
2550Includes SPDT end switch380723ACT-MA418-500-120V
2550Explosion proof enclosure with end switch380806A CT-MA6418500-120V
2550380813ACT-MA419-230V
2550Includes SPDT end switch381593ACT-MA419-500-240V
2550381205ACT-MA5-419-220V
2550Includes SPDT end switch381594ACT-MA5419500-240V
2550Explosion proof enclosure with end switch381595ACT-MA6419500-240V
2550Explosion proof enclosure with end switch381597A CT-MA7419500-240V
Consult factory for actuator applications on UL rated fire and smoke dampers.
NEMA 4, 4X & NEMA 7 housing are available.
1
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".
TF24-SR2450/60Belimo184.5924 in.2 to 10 volts DC384239-TF24-SR-S2450-60Belimo184.5924 in.2 to 10 volts DC with end switch384240-LF24-SR2450/60Belimo3571224 in. 0-10 volts DC381737ACT-LF24SR
LF24-SR-S2450/60Belimo3571224 in.0-10 volts DC with end switch383011833253
NF24-SR2450/60Belimo60122024 in.0-10 volts DC381736ACT-NF24SR
NF24-SR-S2450/60Belimo60122024 in.0-10 volts DC with end switch383012-AF24-SR2450/60Belimo133255024 in.0-10 volts DC381150ACT-AF24-SR
AF24-MFT-S2450/60Belimo133255024 in.0-10 volts DC with end switch381600ACT-AF-24-MFT-S
MS7505A20082450/60Honeywell4471224 in. 0 or 2-10 volts DC383740-MS7505A21302450/60Honeywell4471224 in.0 or 2-10 volts DC with end switch384133-MS7505A20302450/60Honeywell4471224 in.0 or 2-10 volts DC384187-M9185D-10042450/60Honeywell60122024 in.Series 90 (135 ohm slidewire)380949ACT-M9185D1012-24V
MS7510A22062450/60Honeywell88122024 in.0 or 2-10 volts DC with end switch383213-MS7510A20082450/60Honeywell88122024 in.0 or 2-10 volts DC383739-MS7520A20072450/60Honeywell175255024 in. 0 or 2-10 volts DC383214-MS7520A2015/B2450/60Honeywell175255024 in.0 or 2-10 volts DC383785-MS7520A22052450/60Honeywell175255024 in.0 or 2-10 volts DC with end switch383738-MS7520A22132450/60Honeywell175255024 in. 0 or 2-10 volts DC with end switch383784--
1/2 in. dia. shaft - For use on all VCDs 48 in. wide and less (or 96 in. wide if height is 24 in. or less)
1 in. dia. shaft - For use on all VCDs over 48 in. wide and over 24 in. high (for use on all VCDs over 96 in. wide)
332-4551Siemens1081624 in.#3 Actuator with pilot positioner457043ACT-332-4551-P
332-2976Siemens30204024 in.#4 Actuator with pilot positioner457384ACT-332-2976-P
332-2856Siemens50357024 in.#6 Actuator with pilot positioner457407ACT-332-2856-P
1/2 in. Extension pin kit
1/2 in. Crankarm (with bolt and nut)
Belimo4571224 in.381726ACT-LM24
Plate mounted transformer - Primary 120 Vac, Secondary 24 Vac
Compatible on any 24 Vac Actuator
Plate mounted transformer - Primary 480/277/240/208 Vac, Secondary
120 Vac. Compatible on any 120 Vac Actuator.
Transformer (mounted within actuator) to convert Honeywell model
M9185D-1012 modulating actuator to 120, 208, or 240 Vac.
1 in. Crankarm (with bolt and nut)816252N/A
Standoff bracket with ball bearing (for volume control dampers)815027N/A
Standoff bracket without ball bearing (for manual balancing dampers)651812N/A
6 in. long, 1/2 in. diameter control shaft452509N/A
8.5 in., 1/2 in. diameter control shaft455064N/A
Retaining clip used to hold control shaft on axle pin (required with control shaft)451738N/A
Consult factory for actuator applications on UL rated fire and smoke dampers.
Electric
VCDRActuatorExternal Mount
Modulating Spring Return
1
Modulating NON Spring Return
Floating PO/PC
Transformers
Manual Hand Quadrant
Pneumatic
Two-position Spring Return
Modulating Spring Return
1
Miscellaneous Parts
N/A811518
N/A813938
1
809735N/A
812097N/A
NEMA 4, 4X & NEMA 7 housing are available.
1
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".
Page 4
POWER CLOSED
FAIL OPEN
Power
Direction
Power
Direction
POWER OPEN
FAIL CLOSED
Left-Hand DriveRight-Hand Drive
Voltage Actuator ModelActuator KitActuator Part #Spring Return Action Driving Torque
115 Vac
ML4302F1008829876383261
30 in.lb.
MS4309F1005ACT-MS4309-115V382732
CCW
80 in.lb.
24 Vac
ML8302F1004829880383265
30 in.lb.
MS8309F1001ACT-MS8309-24V382734
80 in.lb.
Honeywell, ML Series External Actuator Kits
The ML-XXXX A & MS
series actuators can be
mounted as shown here.
Voltage Actuator ModelActuator KitActuator Part #Spring Return Action Driving Torque
115 Vac
ML4202F1000829877383260
30 in.lb.
MS4209F1007ACT-MS4209-115V382731
CW
80 in.lb.
24 Vac
ML8202F1006829881383264
30 in.lb.
MS8209F1003ACT-MS8209-24V382733
80 in.lb.
The ML-XXXX B
series actuators can be
mounted as shown here.
Default in CAPS
for FSD, SMD,
and CFSD
Power
Direction
POWER CLOSED
FAIL OPEN
Right-Hand Drive
Power
Direction
POWER OPEN
FAIL CLOSED
Left-Hand Drive
Default in CAPS
for VCD
& MS
Item No.Part NumberQtyDescription
11MLACTUATOR28229791ACT. MOUNTING BRACKET37029731STANDOFF BRACKET441526481/4-20 X 1/2 TCS