Honeywell MF4000 Series User manual

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The MF4000A, MF4000P and MF4000B are servo motors to
control and govern airlock of gaseous and liquid fuels or to
action the VF5000 series butterfly valves.
These servo motors are suitable in burners with medium to
high capacity.
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MF4000A1 series to drive air dampers and VF5000 butterfly
valves, with floating adjustment (see Figure 2.).
MF4000P1 series to drive air dampers and VF5000 butterfly
valves, with floating adjustment, with one or two feed-back
potentiometers (see Figure 2.).
MF4000B1 series to drive air dampers and VF5000 butterfly
valves, with internal relay for ON/OFF adjustment (see Figure
3.).
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See Fig. 1. Installation drawing MF4000 on page 2.
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Line voltage: 220 ... 240 Vac, 50/60 Hz
110 Vac, 50/60 Hz
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Current of microswitches: 250 Vac, 10 A (ac) and 2 A (dc)
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-15 .... 60°C
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Maximum torque at 15s rotation time over 90 degrees: 5 Nm
Maximum torque at 30s rotation time over 90 degrees: 10 Nm
Maximum torque at 60s rotation time over 90 degrees: 15 Nm
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15, 30, 60 seconds at 50 Hz.
At 60 Hz the timing is reduced with approximately 20%
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0 to 90 degrees.
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2 degrees (including mechanical tolerances)
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Two PG11 wiring conduits are provided in the housing.
NOTE: Do not provide strain relief according to
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The servo motor is mounted in a metal housing, which can be
opened loosening 4 screws.
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All models
MF4000
Series 250.000

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IMPORTANT
1. Installer must be a trained experienced service
man.
2. Disconnect power supply to prevent electrical
shock and/or equipment damage.
3. When the MF4000 is used in stand alone
applications, use a proper strain-relief.
4. The appliance manufacturer’s instructions should
be followed when provided.
5. Carry out a thorough checkout when installation
is completed.
Fig. 1. Installation drawing MF4000 Series
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There are no mounting restrictions in the angle of the motor.
The motor can be assembled by 4 screws. For mounting hole
dimensions and positions, see installation drawing.
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WARNING
•Adjustment should be made by qualified personnel only.
•If the appliance manufacturer supplies checkout and/or
service and maintenance instructions, carefully follow them.
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MF4000
cam
I
(red) Closed position for air damper motor
II
(black) Open position for air damper motor
III
(blue) Auxiliary switch
IV
(green) Auxiliary switch
V
(yellow) Auxiliary switch
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Disconnect power supply and remove cover. Use adjustment
tool inside the cover to adjust the cams. Place the tool in one of
the cam grooves to turn the cam in steps of approximately 2
degrees.
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All motors are factory set with zero position corresponding with
45 degrees angle of flat surface on actuator shaft (see Figure
1.).
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To carry out the adjustment the auto-manual switch has to be
set to manual.
Three auxiliary switches are available Two push buttons are
used for auxiliary switch regulation, one to open the damper, the
other to close it.
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MF4000
cam
I
(red) Factory set at 0 degrees, to start the air damper in closed position
II/III/IV
& V Rotate the cam clockwise to reduce the position of the damper, anticlockwise to increase the
position of the damper

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Via Ferrero, 16
10090 Cascine Vica - Rivoli (To)
Turin, Italy
Tel: [phone]
Fax: [phone] EN1R-0003-0003R5-IT
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IMPORTANT
All wiring must comply with local and national codes of
practice.
Ensure all valves are correctly earthed.
Fig. 2. Wiring diagram MF4000A and MF4000P
Fig. 3. Wiring diagram MF4000B