Installation Instructions
MF41-6043/6083 Series
Non-Spring Return Rotary Electric Dampers
24 Vac – Floating Control SmartX Actuators
Description
These direct coupled 24 Vac Non-Spring Return rotary electric SmartX
Actuators are designed for three-position (floating) control of dampers.
Features
• Compact, lightweight design
• Manual override
• 5° preload as shipped from factory
• Plenum cabling
• Feedback potentiometer models available
• cUL and UL listed; plenum versions also CE certified
• Independently adjustable dual auxiliary switches available
Applications
These actuators are used in constant or variable air volume installations for control of HVAC dampers requiring up to 44 lb-in (5 Nm)
torque or 88 lb-in (10 Nm).
Product Numbers
Torque Cabling
44 lb-in (5 Nm) Plenum MF41-6043 —
88 lb-in (10 Nm) Plenum MF41-6083 MF41-6083-510
Standard Feedback Potentiometer 1K Ω
24 Vac Operating Voltage
Precautions
Notice:
• Personal injury or loss of life may occur if you do not follow a procedure as specified.
• Equipment damage or loss of data may occur if you do not follow a procedure as specified.
© 2019 Schneider Ele ctric . All rig hts res erve d. All tradema rks are o wned by S chneid er Elect ric Industries SAS o r its af filia ted comp anies. April , 2019 tc
Docume nt Number: F-27213 -5
Installation Instructions
Specifications
Operating voltage (G–Y1 or G-Y2): 24 Vac +20%, -15
Frequency 50/60 Hz
Power consumption 2.3 VA
Auxiliary Features
Feedback potentiometer 0 to 1000 Ω
(MF41-6083-510) <10 mA
Dual auxiliary switch contact rating
AC rating 24 Vac 4A resistive, 2A inductive
DC rating 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° 45° to 90°
Factory setting 85°
Switching hysteresis 2°
Function
Torque
MF41-6043 44 lb-in (5 Nm)
MF41-6083 Series 88 lb-in (10 Nm)
Runtime for 90° opening or closing
MF41-6043 90 seconds. at 60 Hz
(108 seconds at 50 Hz)
MF41-6083 Series 125 seconds at 60 Hz
(150 seconds at 50 Hz)
Nominal angle of rotation 90°
Maximum angular rotation 95°
Mounting
Shaft size
Minimum shaft length 3/4-inch (20 mm)
Enclosure
Rating NEMA Type 2
IP54 according to EN60529
Material Durable plastic
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)
Voltage Requirements for 6083
Series at High Temperatures:
Minimum Voltage: 24 Vac +20%, -10%
90°F to 130°F (32°C to 55°C)
Ambient humidity (non-condensing) 95% rh
Agency Certification UL 873
cUL certified to Canadian
Standard C22.2 No. 24-93
CE Conformity
Electromagnetic Compatibility (EMC) 89/336/EEC
Emissions standards EN 61000-6-3:2001
Immunity standards EN 61000-6-2:2001
Requirements for electric actuators EN 60730-2-14:2001
Miscellaneous
Pre-cabled connection 18 AWG
Cable length 3 feet (0.9 m)
Life cycle Five-year warranty
Dimensions See Figure 7
Weight 1.06 lb (0.48 kg)
Actuator Components
1
11
A B
8070 60
Aux Switch
Adjustment
01 02
50
2
EA0642R3
90
45
90
Figure 1. 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 (4 mm hex)
12. Set screw for mechanical range stop (3 mm hex)
13. Anti-rotation bracket
12
10
8,9
7
6
5
13
43
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.
April , 2019 tc © 2019 Schneider Ele ctric . All rig hts res erve d. All tradema rks are o wned by S chneid er Elect ric Industries SAS o r its af filia ted comp anies.
Document Number: F-27213-5
Installation Instructions
EA1002R1
Dual Auxiliary Switch
Figure 2 shows the adjustable switching values for the auxiliary
switches A and B.
-2,5 0 10 20 30 70 80 90 92,5
A ˚
B
01 02
80 70 60
50
AUX SWITCH
ADJUSTMENT
EA0636R1
0 10 20 30 70 80
92,5 90 80 70
EA0640R1
60
20 10
BA
90
-2,5
0
Figure 2. Adjustable Switching Values for the dual auxiliary
Switches.
Actuator Scale: clockwise
Adjustment range for Switches A and B
Setting interval: 5°
Switching hysteresis: 2°
Actuator Scale: counterclockwise
Notes:
• 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.
• For the counterclockwise rotation, the adjustment lever has to
move from 90° to 0° by using the manual override and then adjust
the auxiliary switches. After the auxiliary switches are adjusted,
the adjustment lever has to move back to the 90° position.
• 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/ft2 or Nm/m2) from the
damper manufacturer.
2. Determine the area of the damper.
3. Calculate the total torque required to move the damper:
Mounting and Installation
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).
Note: For all damper shafts with the exception of the 1/2-inch round
shaft: Remove 1/2–inch diameter guide before installation.
1/2–inch Diameter
Factory–Installed
Guide
3/8–inch Diameter
Use the shaft insert supplied for any
3/8–inch (8 to 10mm) diameter shaft
5/8–inch Diameter
Figure 3. Damper Shaft Sizes.
• An anti-rotation bracket is included with the actuator.
• Observe the service envelope around the actuator as shown in
Figure 7.
• For detailed mounting instructions, see Installation Instructions
F-27211.
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.
4. Once power is restored, the actuator returns to automated control.
ADJUSTMENT
LEVER
90
45
90
2
Total Torque =
1
Safety Factor: When determining the torque of an actuator required,
SF
1
Torque Rating x Damper Area
AUTO
PL0013R2
MANUAL
1
3
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).
Figure 4. Manual Override.
4. Select the actuator type from the table below:
Total Torque Actuator
44 lb-in (5 Nm) MF41-6043
88 lb-in (10 Nm) MF41-6083 Series
© 2019 Schneider Ele ctric . All rig hts res erve d. All tradema rks are o wned by S chneid er Elect ric Industries SAS o r its af filia ted comp anies. April , 2019 tc
Docume nt Number: F-27213 -5
Installation Instructions
Mechanical Range Adjustment
o mechanically limit the range of the damper blade.
T
1. Loosen the stop set screw.
2. Move the screw along the track to the desired position, and fasten
it in place.
<
4 mm
90¡
1
90
45
90
EA0535R2
Figure 5. Moving the Mechanical Range Stop.
90¡
45¡
EA0536R2
90¡
2
Wiring
All wiring must conform to NEC and local codes and regulations.
Use earth ground isolating step-down Class 2 transformers.
Do not use autotransformers.
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.
Notice:
• Do not wire different types of actuators (such as MS/MF41-6153
Series) in parallel with these models.
• All six outputs of the dual auxiliary switch (A and B) must only be
connected to Class 2 voltage (UL/C-UL).
• Separated Extra-Low Voltage (SELV) or Protective Extra Low
Voltage (PELV) (according to HD384 4 41) for installations
requiring CE conformance. You must use a CE certified plenum
actuator.
Notice: Installations Requiring CE 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
To reverse the direction of rotation, wires 6 (violet) and 7 (orange) can
be interchanged.
Wire Designations
Each wire has the standard symbol printed on it.
7 (ORANGE)
6 (VIOLET)
1 (RED)
EARTH GROUND
NEUT
EA0635R2
24
Vac
Figure 6. Three-position Control.
6
7
P1
M
2P 3P S1
1000
1
Figure 7. Three-position Control 24 Vac.
Standard
Symbol
1 Supply (SP) Red
6 Control signal clockwise Violet
7 Control signal counterclockwise Orange
Factory-installed options
S1 Switch A Common
S2 Switch A N.C.
S3 Switch A N.O.
S4 Switch B Common
S5 Switch B N.C.
S6 Switch B N.O.
P1
P2 Feedback Potentiometer Common
P3 Feedback Potentiometer 100 to 0% P3 - P2
Function Color
Feedback Potentiometer
0 to 100% P1 - P2
ISOLATING CLASS 2
TRANSFORMER FOR
24 Vac POWER
: SAFETY ISOLATING
TRANSFORMER
PER EN 60742
120 Vac
A
S2 S3 S5 S6
S4
B
Black
April , 2019 tc © 2019 Schneider Ele ctric . All rig hts res erve d. All tradema rks are o wned by S chneid er Elect ric Industries SAS o r its af filia ted comp anies.
Document Number: F-27213-5
Installation Instructions
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.
3. Apply a control signal (24 Vac) to wires 1 and 6 to verify that the
operating voltage is within range.
4. Connect wires 1(red) and 7 (orange) to a DMM with the dial set at
Vac.
5. 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.
a. Apply a control signal (24 Vac) to wires 1 (red) and 6 (violet).
b. Allow the actuator shaft coupling to rotate from 0° to 90°.
c. Stop applying a control signal to wires 1 (red) and 6 (violet).
d. Apply a control signal (24 Vac) to wires 1 (red) and 7 (or-
ange).
e. Allow the actuator shaft coupling to rotate from 90° to 0°.
2. Check Feedback:
a. Set the DMM dial to ohms.
b. Connect wires P1 and P2 to the DMM. The DMM should
indicate a resistive value.
c. Apply a control signal (24 Vac) to wires 1 (red) and 6 (violet).
The reading of the DMM should increase.
d. Connect wires P2 and P3 to the DMM. The DMM should
indicate a resistive value.
e. Apply a control signal (24 Vac) to wires 1 (red) and 7 (or-
ange). The reading of the DMM should increase.
3. Check Auxiliary Switch A:
a. Set the DMM dial to ohms (resistance) or continuity check.
b. Connect wires S1 and S3 to the DMM. The DMM should
indicate an open circuit or no resistance.
c. 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.
d. Stop applying a control signal to wires 1 (red) and 6 (violet).
e. Connect wires S1 and S2 to the DMM. The DMM should
indicate an open circuit or no resistance.
f. Apply a control signal (24 Vac) to wires 1 (red) and 7 (or-
ange).
g. The DMM should indicate contact closure as the actuator
shaft coupling reaches the setting of switch A.
4. Check the Auxiliary Switch B:
a. Set the DMM dial to ohms (resistance) or continuity check.
b. Connect wires S4 and S6 to the DMM. The DMM should
indicate an open circuit or no resistance.
c. 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.
d. Stop applying a control signal to wires 1 (red) and 6
(violet).
e. Connect wires S4 and S5 to the DMM. The DMM should
indicate an open circuit or no resistance.
f. 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.
© 2019 Schneider Ele ctric . All rig hts res erve d. All tradema rks are o wned by S chneid er Elect ric Industries SAS o r its af filia ted comp anies. April , 2019 tc
Docume nt Number: F-27213 -5
Service
Notice: Do not open the actuator. If the actuator is inoperative, replace the unit.
Dimensions
Installation Instructions
7/16
(11)
min. 1/4 inch
15/16
(94)
min. 4 inch
6 mm
100 mm
2-3/8
(60)
1/32
(0.8)
min. 8 inch
200 mm
min. 2-3/8 inch
60 mm
5-7/16
(137)
min. 3/8 inch
3-7/16
(87)
10 mm
90
5/32
(4)
min. 1 inch
25 mm
13/16
(21)
1/2
(12)
EA0531R2
6-5/8
(168)
25/32
(20)
7-1/16
(180)
2-3/4
EA0530R3
(70)
Figure 8. Dimensions of the SmartX Actuator and Anti-rotation Bracket.
April , 2019 tc © 2019 Schneider Ele ctric . All rig hts res erve d. All tradema rks are o wned by S chneid er Elect ric Industries SAS o r its af filia ted comp anies.
Document Number: F-27213-5
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