Nilfisk-Advance VHS120N1 User manual

C449-US-F-E
EDITION 11/2017
INSTRUCTIONS MANUAL
MANUEL D’INSTRUCTIONS
MANUAL DE INSTRUCCIONES
VHS120N1 - VHS120N6
EN-US English-American
F French
E Spanish
Instructions for use

VHS 120 N1, N6
11/2017 1C449
US
Table of contents
Instructions for use.........................................................................................................2
General information for using the vacuum cleaner.......................................................................... 2
Proper uses..................................................................................................................................... 3
Improper Use................................................................................................................................... 3
Versions and variations ................................................................................................................... 4
Dust emissions in the environment ................................................................................................. 4
General recommendations.............................................................................................................. 4
Vacuum cleaner description...........................................................................................5
Vacuum Cleaner Parts and Labels.................................................................................................. 5
Optional Kits.................................................................................................................................... 5
Accessories..................................................................................................................................... 5
Packing and unpacking ................................................................................................................... 5
Unpacking, moving, use and storage.............................................................................................. 5
Setting to work - connection to the power supply............................................................................ 6
Extensions....................................................................................................................................... 6
Dry applications............................................................................................................................... 6
Vacuuming of liquids ....................................................................................................................... 7
Maintenance and repairs................................................................................................................. 7
Technical data ................................................................................................................................. 8
Dimensions...................................................................................................................................... 8
Controls and indicators.................................................................................................................... 9
Inspections before starting .............................................................................................................. 9
Starting and stopping the vacuum cleaner...................................................................................... 9
Operation......................................................................................................................................... 9
Primary lter shaker ...................................................................................................................... 10
Emergency stopping...................................................................................................................... 10
Emptying the dust container ......................................................................................................... 10
Emptying the liquid container ........................................................................................................ 10
Replacement of dust bags............................................................................................................. 10
Maintenance, cleaning and decontamination.................................................................................11
Main and absolute lter disassembly and replacement..................................................................11
Longopac®replacement ............................................................................................................... 12
At the end of a cleaning session ................................................................................................... 12
Tightness inspection...................................................................................................................... 13
Wiring diagrams ............................................................................................................................ 13
Recommended spare parts ..........................................................................................14
Troubleshooting ............................................................................................................15
WARRANTY.................................................................................................................................. 16
Translation of original instructions

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Instructions for use
SAVE THESE INSTRUCTIONS
General information for using the vacuum
cleaner
Use the vacuum cleaner in accordance with the laws in force
in the country where it is used.
Besides the operating instructions and the laws in force in the
country where the device is used, the technical regulations for
ensuring safe and correct operation must also be observed.
Do not perform any operation that could jeopardize the safety
of people, property and the environment.
Comply with the safety indications and prescriptions in this
instruction manual.
Grounding instructions
This appliance must be grounded. If it should malfunction or
breakdown, grounding provides a path of least resistance for
electric current to reduce the risk of electric shock.
This appliance is equipped with a cord that has an equipment-
grounding conductor and grounding plug. The plug must be
inserted into an appropriate outlet that is properly installed
and grounded in accordance with all local codes and
ordinances.
WARNING!
Improper connection of the equipmentgrounding
conductor can result in a risk of electric shock. Check
with a qualied electrician or service person if you
are in the doubt as to whether the outlet is properly
grounded. Do not modify the plug provided with the
applianceif it will not t the outlet, have a proper out-
let installed by a qualied electrician. Make sure that
the appliance is connected to an outlet having the
same conguration as the plug. No adapter should
be used with this appliance. If the appliance must be
reconnected for use on a dierent type of electric
circuit, the reconnection should be made by a quali-
ed service personnel.
READ ALL THE OPERATING INSTRUCTIONS BEFORE USING
THIS APPLIANCE
Comply with the important safety recommendations identied by the word WARNING!
Operator’s safety
WARNING!
Before starting the vacuum cleaner, it
is absolutely essential to read these
operating instructions and to keep them
on hand for consultation.
The vacuum cleaner can only be used by people
who are familiar with the way it works and who
have been explicitly authorised and trained for the
purpose.
Before using the vacuum cleaner, the operators
must be informed, instructed and trained on how
to work it and for which substances its usage is
permitted including the safe method for removing
and disposing of the vacuumed material.
IMPORTANT SAFETY INSTRUCTIONS
To reduce the risk of re, electric shock, or injury:
-Do not leave the appliance unattended when plugged in.
Unplug from outlet when not in use and before servicing.
-To reduce the risk of an electric shock, do not use outdoors
or on wet surfaces.
-Do not allow this appliance to be used as a toy. This ma-
chine is for adult-use only. Close attention is necessary
when used by or near children.
-Use only as described in this manual. Use only the manu-
facturer’s recommended attachments.
-Do not use with damaged cord or plug. If appliance is not
working as it should, has been dropped, damaged, left
outdoorsordropped intowater, returnitto aservicecenter.
-Do not pull or carry by the cord, use cord as a handle,
close a door on cord, or pull cord around sharp edges or
corners. Do not run the appliance over the cord. Keep
cord away from heated surfaces.
-Do not unplug by pulling on cord. To unplug, grasp the
plug, not the cord.
-Do not handle plug, cord or appliance with wet hands.
-Do not put any object into the openings. Do not use with
any opening blocked; keep free from dust, lint, hair, and
anything that may reduce airow.
-Keep hair, loose clothing, ngers, and all parts of the body
away from openings and moving parts.
-Turn o󰀨 all controls before unplugging.
-Use extra care when cleaning stairs.
-Do not use to pick up ammable or combustible liquids,
such as gasoline, or use in areas where they may be
present.
-Do not pick up anything that is burning or smoking, such
as cigarettes, matches, or hot ashes.
-Do not use without dust bag/or lters in place.
-Connect to a properly grounded outlet only. See ground-
ing instructions.
-Unplug before connecting any mechanical accessory.

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General information for using the vacuum cleaner
Use of the vacuum cleaner is governed by the laws in force in
the country where it is used.
Besides the operating instructions and the laws in force in
the country where the vacuum cleaner is used, the technical
regulations for ensuring safe and correct operation must also
be observed.
Do not carry out any operation that could jeopardize the safety
of people, property and the environment. Comply with the
safety indications and prescriptions in this instruction manual.
Proper uses
This vacuum cleaner is suitable for commercial use, in hotels,
schools, hospitals, factories, shops, o󰀩ces and apartment
buldings for example, for hire and in any case for purposes
other than normal domestic use.
This vacuum cleaner is suitable for cleaning and vacuuming
solid materials in indoor environments.
■Always leave enough room around the vacuum cleaner
to reach the controls easily.
The vacuum cleaner has been designed to be used by one
operator only.
This vacuum cleaner consists of an automated vacuum
unit, with a lter upstream and a container for collecting the
vacuumed material.
Improper Use
WARNING!
The following use of the device is strictly forbidden:
■Outdoors.
■When not placed on level ground. hen not used
on level horizontal surfaces.
■When the ltering unit is not installed.
■When the vacuum inlet and/or hose are turned to
face parts of the human body.
■Use without the cover on the vacuum unit.
■When the dust container is not installed.
■Use without the guards, protective covers and
safety systems installed by the manufacturer.
■When the cooling vents are partially or totally
clogged.
■When the vacuum cleaner is covered with plastic
or fabric sheets.
■Use with the air outlet partially or totally closed.
■When used in narrow areas where there is no
fresh air.
■Vacuuming liquids with vacuum cleaners not
equipped with specic original stopping systems.
■Vacuuming the following materials:
1. Burning materials (embers, hot ashes, lit
cigarettes, etc.).
2. Open ames.
3. Combustible gas.
4. Flammable liquids, aggressive fuels
(gasoline, solvents, acids, alkaline solutions,
etc.).
5. Explosive dust/substances and/or ones liable
to ignite in a spontaneous way (such as
magnesium or aluminium dusts, etc.).
Important: Fraudulent use is not admitted.
Under no circumstances may this vacuum cleaner be used
safely for the collection of hazardous or toxic materials unless
equipped with an absolute (HEPA/ULPA) lter.
Be sure to install the HEPA/ULPA lter according to Nilsk’s
written instructions.
Do not use this cleaner for the removal of hazardous
substances unless you are licensed and/or certied for this
work by the authorities having jurisdiction.

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Versions and variations
Versions
HEPA
This vacuum cleaner can be equipped with an absolute
(HEPA) lter for vacuuming dust hazardous to one’s
health. The procedures for servicing and emptying the
vacuum cleaner including removing the dust container,
must only be performed by authorized personnel wearing
protective clothing. Do not use without the complete lter
system in place.
[ NOTE ]
■In the case of dust harmful to health, contact the local
health and safety authorities, and observe national
regulations in force both during use and disposal.
■Radioactive substances are not included in the
denition of the type of dust harmful to health
described above.
Optional
LIQUIDS
Version “L” can be equipped with oat system.
Dust emissions in the environment
Vacuum cleaners can emit di󰀨erent amounts of sucked dust in
the air, depending on the lter they are equipped with.
Hereunder there are some indicative values of the lter
performances:
■ Primary lter can retain at least 99.9% of particles.
■ Absolute lter can retain at least 99.995% of particles.
General recommendations
WARNING!
Risk of re outbreaks and explosions.
The vacuum cleaner can only be used when active
sources of ignition are not going to be vacuumed.
It is forbidden to vacuum the following materials: burn-
ing materials (embers, hot ashes, lighted cigarettes,
etc.), liquids, explosive dust or dust liable to spon-
taneous ignition (such as magnesium or aluminium
dusts, etc.).
The vacuum cleaner is not suitable for vacuuming
explosive or similar substances, as established by
the laws governing explosive substances, particularly:
liquid fuels and mixtures of ammable dust and liquids.
WARNING!
If an emergency situation occurs:
■lter breakage
■re outbreak
■short-circuit
■motor block
■electric shock
■etc.
Turn the vacuum cleaner o, unplug it and request
assistance from qualied personnel.
[ NOTE ]
Check the place of work and substances tolerated for the
vacuum cleaner suitable for liquids.
WARNING!
The vacuum cleaners must not be used or stored
outdoors, or in damp places.
Only versions with oat system can be used for liquids,
if not, they can only be used to vacuum dry materials.
DANGER!
Version for liquids.
If foam or liquid leaks out of the vacuum cleaner, turn
it o immediately, unplug it and contact qualied
personnel for assistance.

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Vacuum cleaner description
Vacuum Cleaner Parts and Labels
Figure 1
1. Identication plate which includes:
Model Code, Technical Specications (see table on page
6), Serial N°., Year of manufacture, Input voltage.
2. Dust container.
Longopac®bag for collecting vacuumed material.
3. Dust container release lever.
4. Inlet
5. Inlet plug.
6. Air outlet.
7. Caster locking lever.
8. Handle.
9. Closing band lever.
10. Safety bolt.
11. Float system.
12. Container for liquids.
13. Inlet of the container for liquids.
14. Inlet plug when using container for liquids.
15. Warning plate.
Draws the operator’s attention to the fact that the lter
must only be shaken when the vacuum cleaner is turned
OFF (see also par. “Primary lter shaker”).
16. Plug for connecting the vacuum cleaner to an electrical
socket.
This vacuum cleaner creates a strong air ow which is drawn
in through the inlet (4, Fig. 1) and blown out through the outlet
(6, Fig. 1).
Before turning on the vacuum cleaner, t the vacuum hose
into the inlet and then t the required tool on to the end part
(refer to the manufacturer’s accessory catalogue or Service
Center).
The diameters of the authorized hoses are indicated in the
Technical data table.
The vacuum cleaner is equipped with a main lter which
enables it to be used for the majority of applications.
Besides the primary lter, which retains the most common
types of dust, the vacuum cleaner can be tted with a
secondary lter (absolute class H) with a higher ltering
capacity for ne dusts and dusts that are hazardous to health.
Optional Kits
Please contact the manufacturer’s sales network for
information on optional kits.
Instructions for installing the optional kits are included in the
conversion kit.
WARNING!
Use only genuine optional kits supplied and
authorized by the manufacturer.
Optional kits must be installed by qualied Nilsk
personnel.
Accessories
Various accessories are available; refer to the manufacturer’s
accessory catalogue.
WARNING!
Use only genuine accessories supplied and
authorized by the manufacturer.
Packing and unpacking
Dispose of the packing materials in compliance with the laws
in force.
Figure 2
MODEL A
in
B
in
C
in lb (*)
VHS120 N1/N6 27.5 31.4 59.0 116.8
(*) Weight with packing
Unpacking, moving, use and storage
Operate on at, horizontal surfaces.
The load-bearing capacity of the surface the vacuum cleaner
is placed on must be suitable for bearing its weight.

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Setting to work - connection to the power
supply
WARNING!
■Make sure there is no evident sign of damage to
the vacuum cleaner before starting work.
■Before plugging the vacuum cleaner into the
electrical mains, make sure the voltage rating
indicated on the data plate corresponds to that of
the electrical mains.
■Connect the plug into a socket with a correctly
installed ground contact/connection.
■Make sure that the vacuum cleaner is turned o.
■The plugs and connectors of the connection
cables must be protected against splashes of
water.
■Make sure that connections to the electrical
mains and plug are correct.
■Use the vacuum cleaners only when the cables
that connect to the electricity mains are in perfect
condition (damaged cables could lead to electric
shocks!).
■Regularly check there are no signs of damage,
excessive wear, cracks or aging on the electric
cable.
WARNING!
When the device is operating, do not:
■Crush, pull, damage or tread on the cable that
connects to the electrical mains.
■Only disconnect the cable from the electrical
mains by removing the plug (do not pull the
cable).
■Only replace the electric power cable with one of
the same type as the original: 12/3 SJT SP20A.
The same rule applies if an extension is used.
■The cable must be replaced by the manufacturer’s
Service Center sta or by equivalent qualied
personnel.
Extensions
If an extension cable is used, make sure it is suitable for the
power input and protection degree of the vacuum cleaner.
Maximum length = 20 m
Cable = 12/3 SJT SP20A
WARNING!
Sockets, plugs, connectors and installation of the
extension cable must maintain the IP protection
degree of the vacuum cleaner, as indicated on the data
plate.
WARNING!
Never spray water on the vacuum cleaner: this could
be dangerous for persons and could short circuit the
power supply.
WARNING!
The vacuum cleaner’s power socket must be protected
by a dierential circuit-breaker with surge current
limitation, that shuts o the power supply when the
current discharged to the ground exceeds 30 mA for
30 msec. or an equivalent protection circuit.
Dry applications
[ NOTE ]
The supplied lters and the bag (if applicable) must be
installed correctly.
WARNING!
Comply with the safety regulations governing the
vacuumed materials.

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Vacuuming of liquids
WARNING!
Comply with the safety regulations governing the
vacuumed materials.
WARNING!
■Make sure the oat system is working correctly
before vacuuming liquids.
■If foam forms, turn o the vacuum cleaner
immediately and empty the container.
■Warning: switch o the vacuum cleaner
immediately if foam or liquid leaks out.
■Regularly clean the oat system and check to
make sure that there are no signs of damage.
■Warning: the dirty liquid collected by the vacuum
cleaner must be considered conductive.
WARNING!
Do not use the vacuum cleaner if the oat system is
not installed!
If it’s used without the oat, the vacuum cleaner may
be seriously damaged.
WARNING!
When vacuuming a mix of water and air, take care
to avoid overloading the motor of the vacuum unit.
Figure 1
The machine vacuums liquids and deposits them into the
container.
When the machine vacuums liquids it must be equipped with
oat system (11).
The oat system requires a special container (12) with
relevant nozzle (13).
Before starting the vacuum cleaner, close the upper inlet (4)
with the relevant plug (14) and t the vacuum hose in the
relevant hose (13), then t the required tool on to the end part
of the hose (Refer to the manufacturer’s accessory catalog or
Service Center).
The oat system (11) stops the vacuuming operation (the
vacuuming units remain activated) when the liquid container
(12) is full; it is then necessary to turn o󰀨 the vacuum cleaner
and empty the liquid container (12).
The vacuum cleaner does not switch o󰀨 automatically.
Maintenance and repairs
WARNING!
Disconnect the vacuum cleaner from its power source
before cleaning, servicing, replacing parts or convert-
ing it to another version/variant, the plug must be
disconnected from the socket.
■Carry out only the maintenance operations
described in this manual.
■Use only original spare parts.
■Do not modify the vacuum cleaner in any way.
Failure to comply with these instructions could jeop-
ardize your safety. Moreover, such action would im-
mediately make the warranty issued with the vacuum
cleaner void.
WARNING!
For maintenance procedures not described in this
manual, please contact the manufacturer’s technical
support or sales network.

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Technical data
Parameter Units VHS120 N1 VHS120 N1 GU VHS120 N6 VHS120 N6 GU
Voltage (60 Hz) V 120 120
Power rating kW 2 1.6
Current Draw, rated Amps 14.5 11.5
Max vacuum in. H2O 83.2 71.5
Maximum air ow rate (with hose, length: 3 m,
diameter: 50 mm) cfm 176 158
Noise level (Lpf) dB(A) 74 74
Protection Class I I
Insulation Class F F
Longopac®dust bag capacity gal. – 6.6 – 6.6
Container capacity gal. 9.7 – 9.7 –
Machine Inlet Inches 2 2
Allowed hoses Inches 2 2
Primary lter surface Sq. ft 17 17
Upstream absolute “H” lter surface Sq. ft 17 17
Absolute lter e󰀩ciency % 99.995 (H14) 99.995 (H14)
Weight (1) lb 83.78 83.78
Dimensions
Figure 4
Model VHS120 N1/N6
A (in) 22.44”
B (in) 22.05”
C (in) 39.96”
(1) Net weight Storage conditions:
T: -10°C ÷ +40°C
Humidity: 85%
Operating conditions:
Maximum altitude: 800 m
(Up to 2,000 m with reduced
performances)
T: -10°C ÷ +40°C
Humidity: 85%

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Controls and indicators
Figure 3
1. Main motor Start/Stop switch
You can start/stop the main motor with this switch.
2. Second motor Start/Stop switch
You can start/stop the second motor with this switch.
3. Vacuum gauge
4. Manual lter shaker lever
Inspections before starting
Figure 5
1. Inlet
Before starting, check that:
■ The lters are installed;
■The closing band is properly tightened;
■ The vacuum hose and tools have been correctly tted
into the inlet (1);
■ The oat system (11, Fig. 1) is properly installed inside
the liquid container (version L);
■The Longopac®bag (2, Fig. 1) is installed (version GU).
WARNING!
Lock the caster brakes before starting the vacuum
cleaner (2).
WARNING!
Do not use the device if the lters are faulty.
Starting and stopping the vacuum cleaner
Figure 3
■Toggle the switch (1) to the “ON” position to start the rst
motor.
■Toggle the switch (2) to the “ON” position to start the
second motor.
■Toggle the switch (1) to the “OFF” position to stop the
rst motor.
■Toggle the switch (2) to the “OFF” position to stop the
second motor.
Liquid vacuuming stop
■ When the container is full, the oat system (11, Fig. 1)
blocks the airow; the vacuum units remain on.
■ Do not leave the vacuum units on after the oat system
has tripped, to avoid unnecessary overloading of the
motors; turn the vacuum units o󰀨 by turning the switches
(1and 2) to “OFF” position.
Operation
Figure 7
Vacuum gauge (2): green zone (3), red zone (1)
When using the vacuum cleaner, check the ow control:
■when the vacuum cleaner is operating, the pointer of
the vacuum gauge must remain in the green zone (3)
to ensure that the speed of the intake air does not drop
below the safety value of 20 m/sec;
■If the pointer is in the red zone (1) it means that the
speed of the air in the vacuum hose is less than 20 m/s,
and that the vacuum cleaner is not operating in optimal
conditions. Shake or replace the lter.
■during normal operation conditions, close the vacuum
hose, the pointer of the vacuum gauge must switch from
the green zone (3) to the red zone (1).
WARNING!
When the vacuum cleaner is operating, always check
that the vacuum gauge pointer remains in the green
zone (3).
Consult the “Troubleshooting” chapter if faults occur.
WARNING!
The air speed in the suction tube must not be less
than 20 m/s.
Condition indicated by the vacuum gauge pointer in
the green zone (3).
WARNING!
All vacuum cleaners can be used only with hoses
whose diameters comply with the specications in the
“Technical Data” table.
WARNING!
Consult the “Troubleshooting” chapter if faults occur.

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Primary lter shaker
Figure 7
According to the quantity of vacuumed material, if the vacuum
gauge pointer (2) goes from the green zone (3) to the red
zone (1), shake the primary lter by turning the lever (4,
Fig. 3) clockwise/counterclockwise for at least 5 complete
cycles.
WARNING!
Stop the vacuum cleaner before using the lter shaker.
Do not shake the lter while the vacuum cleaner is on,
as this could damage the lter.
Wait before restarting the vacuum cleaner, to allow the dust to
settle. Replace the lter element if the vacuum gauge pointer
stays in the red zone (1) even after the lter has been shaken
(see “Primary lter replacement”).
Emergency stopping
Turn the buttons (1and 2Fig. 3) to “OFF”. The vacuum
cleaner stops.
WARNING!
The motors and internal components of the vacuum
cleaner will still be electrically powered.
To start the vacuum cleaner again, turn the buttons of each
single motor (1and 2, Fig. 3) to “ON”.
Emptying the dust container
WARNING!
■Before proceeding with these operations, turn the
vacuum cleaner o and disconnect the plug from
the power socket.
■Check the class of the vacuum cleaner.
Before emptying the container it is advisable to clean the lter
(see “Primary lter shaker”).
■ Turn o󰀨 the vacuum cleaner and remove the plug from
the socket.
■Release the dust container (2, Fig. 1) with the lever (3,
Fig. 1), then remove and empty it.
■Clean the vacuum cleaner as described in the
“Maintenance, cleaning and decontamination” paragraph.
■ Remove the oat system (11, Fig. 1), if equipped.
■Wash the container with clean water if aggressive
substances have been vacuumed.
■Make sure the seal is in perfect condition and correctly
positioned:
▪DUST version (1, Fig. 12).
▪LIQUID version (4, Fig. 12).
■Place the container back in position and secure it again.
[ NOTE ]
After the cleaning session, leave the vacuum cleaner
running for at least 60 seconds before turning it o.
Avoid switching on/o too frequently.
Emptying the liquid container
■ The lter element will be wet after liquids have been
vacuumed.
A wet lter element can quickly become clogged if the vacuum
cleaner is then used to vacuum dry substances.
For this reason, make sure that the lter element is dry or
replace it with another one before using the vacuum cleaner
for dry materials.
Replacement of dust bags
WARNING!
Before proceeding with these operations, turn o the
vacuum cleaner and remove the plug from the power
socket.
WARNING!
■These operations can only be carried out by
trained and qualied personnel who must wear
adequate clothing, in compliance with the laws in
force.
■Take care not to raise dust when this operation is
carried out. Wear an N100 (P3) protective mask.
■In case of hazardous and/or harmful dust, use
only the bags recommended by the manufacturer
(see “Recommended spare parts”).
■The bag must only be disposed of by qualied
personnel and in compliance with the laws in
force.
WARNING!
Installing a paper bag not suitable for the class of dust
to be vacuumed, or incorrect installation, can create a
health risk for people exposed.
How to replace Longopac®bags
Figure 6
■Turn the bag full of dust (1) on itself to create a tightly
twisted section of bag to be tightened with two zip ties
(2).
■Place the two clamps at a distance of 50 mm between
them, then with a pair of scissors cut between the two
ties.
■Remove the bag full of dust (1) and place the new
section of Longopac®(3).

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Maintenance, cleaning and
decontamination
WARNING!
To guarantee the safety level of the vacuum cleaner,
only original spare parts supplied by the manufacturer
should be used.
WARNING!
The precautions described below must be taken
during all maintenance operations, including cleaning
and replacing the primary and absolute lters.
WARNING!
The maintenance, cleaning and decontamination
operations must only be performed with the vacuum
cleaner turned o and the plug disconnected from
the power socket.
It is absolutely forbidden to perform maintenance
with the plug connected to the socket.
Danger of electric shock!
■If the user is performing the maintenance operations,
the vacuum cleaner must be disassembled, cleaned
and overhauled as far as reasonably possible without
hazards for the maintenance personnel or other people.
The suitable precautions include decontamination before
disassembling the vacuum cleaner, adequate ltered
ventilation of the exhaust air from the room in which it
is disassembled, cleaning the maintenance area and
suitable personal protection.
■The external parts of the vacuum cleaner must be
decontaminated by cleaning and vacuuming methods,
dedusted or treated with sealant before being taken out
of a hazardous zone.
■All parts of the vacuum cleaner must be considered
as contaminated when they are removed from the
hazardous zone and appropriate actions must be taken
to prevent dust from dispersing.
■When maintenance or repair procedure are carried out,
all the contaminated elements that cannot be properly
cleaned, must be eliminated.
■These elements must be disposed of in sealed bags in
accordance with applicable regulations and local laws on
the disposal of such material.
■ This procedure must also be followed when the lters are
eliminated (primary and absolute lters).
■Compartments that are not dust-tight must be opened
with suitable tools (screwdrivers, wrenches, etc.) and
thoroughly cleaned.
■A check must be carried out by the manufacturer or
qualied personnel at least once a year. For example:
Check the air lters to nd out whether the air-tightness
of the vacuum cleaner has been impaired in any way
and make sure that the electric control panel operates
correctly.
Main and absolute lter disassembly and
replacement
WARNING!
When the vacuum cleaner is used to vacuum
hazardous substances, the lters become
contaminated, therefore:
■Work with care and avoid spilling the vacuumed
dust and/or material;
■place the disassembled and/or replaced lter in a
sealed plastic bag;
■close the bag hermetically;
■dispose of the lter in accordance with the laws
in force.
WARNING!
Filter replacement is a serious matter. The lter must
be replaced with one of identical characteristics, lter-
ing surface and category.
Otherwise the vacuum cleaner will not operate cor-
rectly.
Before proceeding with these operations, turn the
vacuum cleaner o and disconnect the plug from the
power socket.
How to replace the primary lter
Figure 8
Before proceeding with these operations, turn o󰀨 the vacuum
cleaner and remove the plug from the power socket.
■ Turn o󰀨 the vacuum cleaner by placing the two switches
in the “OFF” position.
■ Shake the primary lter by turning the lever (5) clockwise/
counterclockwise for at least 5 complete cycles.
■Release the closing band (7).
■Remove the head (8) and the cage. but do not lift the star
lter (9).
■ Remove and dispose of the lter according to the laws in
force.
■ Reset the vacuum cleaner by fastening the new lter on
the ring (10) with the metal clamp (11).
■ Install the head and the cage in the primary lter by
taking care that there is one spoke of the cage every two
pockets of the star lter.
■Check the correct position of the shaker handle (12).
■Fasten the closing band.
WARNING!
Take care not to raise dust when this operation
is carried out. Wear an N100 (P3) mask and other
protective clothing plus protective gloves (PPE/DPI)
suited to the hazardous nature of the dust collected;
refer to the laws in force.
WARNING!
Reassemble with care to avoid trapping your hands
between the vacuum unit and the container. Use
gloves that provide ANSI/ISEA Level “2” protection.
If necessary contact the manufacturer’s Service Center.

C449 12 11/2017
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How to safely replace the absolute lter
Figure 9
Before proceeding with these operations, turn the machine o󰀨
and disconnect the plug from the power socket.
■Disconnect the accessory hose from the inlet (1).
■Insert the plug (2) in the inlet.
■Remove the cover (3) from the lter shaker lever and
unscrew the nut (4).
■ Remove the lter shaker lever (5) from the cage stem.
DO NOT APPLY FORCE ON THE HEAD COVER
■Unlock the safety bolt (6).
■Release the closing band (7).
■Remove the head (8) from the cage stem (9), but do not
lift the star lter (10).
■Tilt the head (8) and lay it on a suitable surface, in order
to not ruin the plastic.
■Unscrew ring (11).
■Remove the disc (12), the iron-rubber washer (13) and
the absolute lter (14).
■ Place absolute lter (14) in a plastic bag, close the bag
hermetically and dispose of the lter in accordance with
the laws in force.
■ Insert a new absolute lter (14) with the same ltering
characteristics as the removed one.
■Install the iron-rubber washer (13) and the disc (12), then
tighten the ring nut (11).
■Reinstall the head (8) by inserting it on the cage stem (9).
■ Reinstall the lter shaker lever (5) by inserting it into the
cage stem (9) and turning it as shown in the gure (26).
■Lock the lever with the nut (4), then reinstall the cover
(3).
■Fasten the closing band (7).
■Tighten the safety bolt (6) again.
WARNING!
Take care not to raise dust when this operation
is carried out. Wear an N100 (P3) mask and other
protective clothing plus protective gloves (PPE/DPI)
suited to the hazardous nature of the dust collected;
refer to the laws in force.
WARNING!
Reassemble with care to avoid trapping your hands
between the vacuum unit and the container. Use
gloves that provide ANSI/ISEA Level “2” protection.
If necessary contact the manufacturer’s Service Center.
Longopac®replacement
Figure 10
■Prepare the bag holder with the inside part upwards and
insert the Longopac inside the groove on it. Pull o󰀨 the
Longopac inner end for at least 250 mm, put the strap
around the support as shown in the gure, tighten it by
leaving free the excess part of the inner end pulled o󰀨
previously. Properly arrange the excess Longopac inside
the groove (1).
■ Pull o󰀨 the Longopac outer end, turn it down and close it
with the proper band (2-3).
■Draw near the bag holder to be placed under the hopper
cone, insert the pins into the slots and turn the system to
lock it at the upper cylinder (4).
■Pull down the bag closed by the band and lay it on the
tray. Then, by means of the 2nd supplied belt, fasten the
inner end (250 mm-long), which have been previously
removed, above the gasket on the hopper (5).
WARNING!
Take care not to raise dust when this operation
is carried out. Wear an N100 (P3) mask and other
protective clothing plus protective gloves (PPE/DPI)
suited to the hazardous nature of the dust collected;
refer to the laws in force.
WARNING!
Reassemble with care to avoid trapping your hands
between the vacuum unit and the container. Use
gloves that provide ANSI/ISEA Level “2” protection.
If necessary contact the manufacturer’s Service Center.
At the end of a cleaning session
■ Turn o󰀨 the vacuum cleaner and remove the plug from
the socket.
■Wind the connection cable.
■Clean the vacuum cleaner as described in the
“Maintenance, cleaning and decontamination” paragraph.
■Store the device in a dry place, out of reach of
unauthorized people.
■Lock the caster brakes (2, Fig. 5).
■Shut the inlet with the appropriate plug (5, Fig. 1) when
the vacuum cleaner is transported or not being used.

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Tightness inspection
Hoses check
Make sure the connecting hoses (Fig. 11) are in a good
condition and correctly xed.
If the hoses are damaged, broken or badly connected to the
unions, they must be replaced.
When sticky materials are collected, check for possible
clogging along the hose, in the inlet and on the ba󰀪e plate
inside the ltering chamber.
To clean, scrape the inlet (2, Fig. 11) from the outside to
remove deposits.
Filter chamber gasket check
Make sure that the container (2 Fig. 12) is tight with the lter
chamber (3, Fig. 12). Replace the dust container gasket (1,
Fig. 12) or the liquid container gasket (4, Fig. 12) if it is not
tight, or if it is torn, cut, etc.
Hopper gasket check
Ensure that the Longopac®bag is tight with the gasket (2,
Fig. 13). The gasket must be replaced if it is torn, cut, etc...
Clapet gasket check
Replace the gasket (1, Fig. 13) if it is not tight, or if it is torn,
cut, etc.
Wiring diagrams
Figure 14
Item Type Description Qty
Q1 4083901814 Switch 2 pole 1
Q2 4083901814 Switch 2 pole 1

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Recommended spare parts
The following is a list of spare parts that should be kept ready at hand in order to speed up maintenance operations.
Refer to the manufacturer’s spare parts catalogue when ordering spare parts.
Description Model
Standard lter 4081701390
Filter ring gasket Z8 17025
Filter chamber gasket 4081100183
Filter clamp 4084001291
Absolute lter 4081701384
Dust bag (5 bags) 4084001003
Safe bag 4084001013
Longopac®4084000956
120V 800W Motor (N6) 4085400025
120V 1000W Motor (N1) 4085400026
Brushes (carbon) for 120V motors (2 brushes) 40000886

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Troubleshooting
Problem Cause Remedy
The vacuum cleaner does not start Lack of power supply
Check for power at the socket.
Check the condition of the socket and the cable.
Ask for assistance to be performed by a qualied
manufacturer’s technician.
The vacuum cleaner revolutions
increase
Clogged primary lter Use the lter shaker (models with manual lter
shaker). Replace it if this is not su󰀩cient.
Clogged vacuum hose Check the vacuum hose and clean it.
The vacuum unit produces a more
acute noise The oat system has activated. Emptying of the liquid container.
Dust leaks from the vacuum cleaner
The lter is torn Replace it with another of identical type.
Inadequate lter Replace it with another of a suitable category and
check.
Noisy motors Motor brushes (carbon) worn or broken Remove and replace the (carbon) motor brushes.
Electrostatic current on the vacuum
cleaner Missing or ine󰀩cient grounding
Check all ground connections. In particular on the
vacuum inlet tting; replace the hose with an antistatic
hose.

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WARRANTY
Nilsk warrants that its equipment will be free of defects in workmanship or material for a period of two years from the date
of delivery. If the vacuum fails to meet these warranty standards, Nilsk shall, upon notication within such time period,
correct such non-conformity, at its option, either by repairing any defective part or parts, or by replacing a part or parts,
provided that the equipment is returned to an authorized Nilsk service facility. In all cases freight both ways will be at
expense of the customer. Equipment shall not be returned without advance notice to, and consent of Nilsk.
EXCEPT AS SPECIFICALLY SET FORTH HEREIN, NILFISK MAKES NO WARRANTIES, EITHER EXPRESSED OR
IMPLIED, AS TO ANY MATTER WHATSOEVER, INCLUDING WITHOUT LIMITATION ANY AND ALL WARRANTIES
OF MERCHANTABILITY, FITNESS OF PURPOSE, OR OTHER WARRANTIES, ALL OF WHICH ARE EXPRESSLY
DISCLAIMED AND EXCLUDED. NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR SPECIAL, INDIRECT,
INCIDENTAL OR CONSEQUENTIAL DAMAGES, INCLUDING BUT NOT LIMITED TO LOSS OF PRODUCTION, LOSS
OF PROFITS OR ANY OTHER SIMILAR INDIRECT LOSSES WHICH MIGHT OCCUR AS A RESULT OF DEFECTS,
PARTIAL OR TOTAL FAILURE OF THE PRODUCT TO PERFORM AS SPECIFIED.
Correction of non-conformities or defects in the manner and for the period of time provided above, shall constitute fullment
of all liabilities of Nilsk to the customer, whether based on contract, negligence or otherwise with respect to, or arising out of
such equipment. The remedies set forth herein are exclusive, and the liability of Nilsk with respect to this sale or anything
done in connection therewith, whether in contract, in tort, under any warranty, or otherwise, shall not, except as expressly
provided herein, exceed the price of the equipment or part on which such liability is based.
This warranty does not cover repairs due to normal wear and tear, accident, neglect, misuse or abuse, incorrect installation
or use other than as described in the instruction booklet. Breaks in hoses and cables are not covered.
This warranty is rendered void if the motor number plate is removed or defaced or if repairs are made or attempted by
persons not authorized by Nilsk.
Some states do not allow exclusion of implied warranties or limitations on how long an implied warranty lasts so the above
exclusions or limitation of implied warranties may not apply. Some states do not allow exclusion or limitation of incidental or
consequential damages so the above exclusion or limitation of incidental or consequential damages may not apply. Limited
warranties set forth above give specic legal rights. Customer may have other rights which vary from state to state.

VHS 120 N1, N6
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Table des matières
Mode d’emploi .................................................................................................................2
Sécurité de l’opérateur .................................................................................................................... 2
Informations générales sur l’utilisation de l’aspirateur..................................................................... 2
Utilisations prévues ......................................................................................................................... 3
Utilisations inappropriées ................................................................................................................ 3
Versions et variantes de fabrication ................................................................................................ 4
Émissions de poussières dans l’atmosphère .................................................................................. 4
Recommandations générales.......................................................................................................... 4
Description de l’aspirateur .............................................................................................5
Composants de l’aspirateur et étiquettes........................................................................................ 5
Options de transformation............................................................................................................... 5
Accessoires..................................................................................................................................... 5
Emballage et déballage................................................................................................................... 5
Déballage, manutention, emploi et stockage .................................................................................. 5
Mise en service - raccordement au réseau électrique..................................................................... 6
Rallonges ........................................................................................................................................ 6
Aspiration de substances sèches.................................................................................................... 6
Aspiration de liquides ...................................................................................................................... 7
Entretien et réparation..................................................................................................................... 7
Caractéristiques techniques............................................................................................................ 8
Dimensions...................................................................................................................................... 8
Commandes et indicateurs.............................................................................................................. 9
Contrôles avant la mise en marche................................................................................................. 9
Mise en marche et arrêt de l’aspirateur........................................................................................... 9
Fonctionnement............................................................................................................................... 9
Secoueur primaire......................................................................................................................... 10
Arrêt d’urgence.............................................................................................................................. 10
Vidange de la cuve à poussière .................................................................................................... 10
Vidange de la cuve à liquides........................................................................................................ 10
Mode de remplacement des sacs à poussière.............................................................................. 10
Entretien, nettoyage et décontamination........................................................................................11
Démontage et remplacement des ltres primaire et absolu...........................................................11
Remplacement du Longopac®(VHS 120 H) ................................................................................. 12
À la n du nettoyage...................................................................................................................... 12
Contrôle des étanchéités............................................................................................................... 13
Schémas électriques..................................................................................................................... 13
Pièces détachées conseillées ......................................................................................14
Dépannage .....................................................................................................................15
GARANTIE.................................................................................................................................... 16
Traduction des instructions originales

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Mode d’emploi
CONSERVER CES INSTRUCTIONS
Informations générales sur l’utilisation de
l’aspirateur
L’utilisation de l’aspirateur est soumise aux normes
internationales en vigueur.
En plus des instructions du mode d’emploi et des règlements
en vigueur dans le Pays où il est utilisé, pour la prévention
des accidents il est nécessaire d’observer les règles
techniques pour un travail sûr et correct.
Éviter tout travail pouvant porter atteinte à la sécurité des
personnes, des choses et de l’environnement.
Observer les informations et les prescriptions de sécurité
contenues dans ce manuel d’instructions.
Instructions de mise à la terre
Cet appareil doit être branché à la terre. En cas de panne,
la mise à la terre fournit au courant un chemin de moindre
résistance qui réduit le risque de choc électrique.
Cet appareil est pourvu d’un cordon muni d’un conducteur
de terre et d’une che avec broche de mise à la terre. La
che doit être branchée à une prise électrique de terre
correctement installée et mise à la terre conformément aux
normes et aux lois en vigueur.
AVERTISSEMENT !
Le branchement non correct comporte le risque de
choc électrique. Demander l’intervention d’un élec-
tricien ou d’un technicien qualié en cas de doutes
concernant le branchement de la prise électrique de
terre. Ne pas modier la che livrée avec la machine. Si
la che ne peut pas être branchée à la prise électrique,
demander l’intervention d’un électricien qualié pour
installer une prise électrique de terre appropriée.
Vérier que la machine soit branchée à une prise
électrique ayant la même conguration de la che.
Aucun adaptateur ne doit être utilisé avec cette ap-
pareil. S’il est nécessaire de brancher à nouveau la
machine à un circuit électrique diérent, l’opération
doit être eectuée par du personnel formé.
LIRE TOUTES LES INSTRUCTIONS AVANT D’UTILISER LA MACHINE.
Observer les avertissements importants de sécurité repérés par AVERTISSEMENT!
Sécurité de l’opérateur
AVERTISSEMENT !
Avant de mettre l’aspirateur en service, lire
absolument les instructions d’utilisation et
les garder à portée de main pour pouvoir les
consulter en cas de besoin.
L’utilisation de l’aspirateur est réservée exclusivement
au personnel expérimenté, formé et expressément
chargé du fonctionnement.
Avant l’utilisation, les opérateurs doivent être
instruits et formés à l’utilisation de l’aspirateur et
des substances pour lesquelles il doit être utilisé, y
compris la méthode sûre d’évacuation et d’élimination
de la matière recueillie.
INSTRUCTIONS IMPORTANTES DE SECURITE
Pour réduire le risque d’incendie, chocs électriques ou
blessures :
-Ne pas laisser la machine sans surveillance lorsqu’elle est
branchée.La débrancherlorsqu’elle n’estpasutilisée etavant
toute opération d’entretien.
-Pour réduire le risque de chocs électriques, l’utiliser unique-
ment à l’intérieur.
-Ne pas permettre que la machine soit utilisée comme jouet.
La machine doit être utilisée exclusivement par les adultes.
Faire très attention lors d’une utilisation par et près d’enfants.
-Utiliserla machineselon lesindicationsdécrites dansle présent
manuel.Utiliserexclusivementlesaccessoiresrecommandés
par le fabricant.
-Ne pas utiliser avec des câbles ou des ches endommagés.
Si la machine ne fonctionne pas correctement, si elle est
endommagée, laissée à l’extérieur ou tombée dans l’eau, la
porter auprès d’un Service après-vente agréé.
-Ne pas la tirer par le câble, ne pas utiliser le câble comme
poignée, ne pas fermer de porte sur le câble et ne pas tirer le
câblesurdessurfacesoucoinstranchants.Nepasdémarrerla
machinesur lecâble.Tenir lecâble loindessurfaces chaudes.
-Ne pas tirer le câble pour débrancher la machine. Pour
débrancher la machine, saisir la che et non le câble.
-Ne pas toucher la che, le câble ou la machine avec les
mains mouillées.
-Ne pas insérer d’objets dans les ouvertures. Ne pas utiliser
si les ouvertures sont colmatées ; les garder libres de pous-
sière, lasse, poils et tout autre corps étranger à même de
réduire le ux d’air.
-Éviter que les poils, les vêtements amples, les doigts et les
parties du corps soient entraînés dans les parties mobiles
de la machine.
-Désactiver toutes les commandes avant de débrancher la
machine de la prise de courant.
-Prêter particulièrement attention pendant le nettoyage des
escaliers.
-Ne pas utiliser pour aspirer de liquides inammables ou
combustibles (par exemple, l’essence) et ne pas utiliser dans
des endroits où ils pourraient être présents.
-Ne pas aspirer de matières ardentes (cigarettes, braises,
cendres chaudes).
-Ne pas utiliser sans le sac à collecte de poussière ou le ltre.
-Brancher exclusivement à une prise électrique de terre
adaptée. Lire les instructions de mise à la terre.
-Débrancher avant de brancher tout accessoire mécanique.