Alfa Network FILTER UNI 2.2 User manual

ALFA IN a.s. © www.alfain.eu FILTER UNI 2.2 manual EN 02
FILTER UNI 2.2
INSTRUCTION MANUAL

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OBSAH
1. INTRODUCTION ....................................................................................... 3
2. SAFETY PRECAUTIONS ......................................................................... 4
3. TECHNICAL DATA ................................................................................... 5
4. DESCRIPTION OF THE APPLIANCE ....................................................... 6
5. GETTING STARTED ................................................................................. 8
6. MAINTENANCE ...................................................................................... 10
7. DISPOSAL .............................................................................................. 18
8. WARRANTY LIST ................................................................................... 18

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1. INTRODUCTION
Dear Consumers!
Company ALFA IN a. s. thanks you for buying our filtration equipment and
believe that you will be satisfied with our machine.
FILTER UNI 2.2 is intended for the local exhausting of pollutants generated
during welding. The filter can be equipped with one or two suction arms.
Air pollutants generated during welding are fed to a three-part filter set, where
mechanical particles are trapped. At devices equipped with fourth filtration stage
with activated carbon are also trapped gaseous pollutants. Thereafter,
the cleaned air is discharged back to the work area by means of a fan.
FILTERS UNI 2.2 meet the requirements of the CE brand and are manufactured
in the EU.
We reserve the law of adjustments and changes in case of printing errors,
change of technical parameters, accessories etc. without previous notice.
These changes may not be reflected in the manuals for use in paper or electronic
form.

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2. SAFETY PRECAUTIONS
1. Before use, the instructions given in this instruction manual must be read
carefully.
2. All safety regulations must be observed when using electrical devices,
to avoid electric shocks, equipment damage, or fire.
3. UNI FILTER must not be used for suction easily flammable or explosive
substances. The UNI FILTER is designed for the suction of welding
pollutants, not for other applications.
4. Protect the mains cable from high temperatures, oils and sharp edges.
5. The machine must be well stabilized, wheels with the brake must be braked.
6. Before any interference in electrical part, removing the cover or cleaning,
the device should be disconnected from the network.
7. Putting the machine into operation can be performed only by trained
personnel and only within the technical provisions. The manufacturer is not
liable for damages resulting from improper use or handling.
For maintenance and repair, use only original spare parts from ALFA IN.
8. The machine must be positioned so that the air can exit the vents without
restriction.
9. The handling handle is intended for moving only, it is not designed for lifting
the machine.
10. All interventions in the el. equipment as well as repair should be performed
by an authorized person.
11. With competent mains voltage and input must match the plug.
12. It is necessary to protect the machine against:
a. Moisture and rain
b. Mechanical damage
c. Draft and possibly ventilation of neighboring machines
d. Rough treatment
e. Chemically aggressive environments

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3. TECHNICAL DATA
Suction arm pcs 1
Mains voltage V/Hz 1x230/50
Machine air flow rate m3/h 1480
Maximum extractor fan flow rate m3/h 2500
IP protection class IP 55
Filtration efficiency according to EN 1822 (G2) % 25
Filtration efficiency according to EN 1822 (G4) % 70
Filtration efficiency according to EN 1822 (E12) % 99,5
ISO insulation class F
Sound pressure level db (A) 73
Dimensions (w x l x h) mm 600 x 800 x 1200
Weight without arm kg 100 kg

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4. DESCRIPTION OF THE APPLIANCE
MAIN PARTS
Figure 1 – Main parts of the machine
Pos. Description
A1 Suction arm
A2 Handle
A3 Control panel
A4 Wheel with brake
A5 Door for filters replacement
A6 Exhalation and carbon filter attachment point

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CONTROL PANEL
Figure 2 – Control panel
Pos. Description
V1 ON/OFF switch
V2
LED diodes
fan on
self-cleaning valves on
(if function enabled)
dirty filter warning (600 h)
clogged filter warning
(on – if function enabled)
V3 Display
V4 Control buttons
V5 OFF button
V6 ON button

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BUTTON LAYOUT
Figure 3 – Button layout
5. GETTING STARTED
ARM ASSEMBLY
Depending on the model, the FILTER UNI is equipped with one or two suction
arms.
Screw the suction arm tightly by means of the enclosed screws through the holes
in the flange to the holes in the top cover.
GETTING STARTED
1. Switch on the machine with the mains plug. The mains connection must
correspond to the technical parameters of the respective hood type in this
manual.
2. Turn the machine on by rotating the ON/OFF switch V1 to the position ON
and then long pressing the ON button (pos. V6) on the control panel, the
ON button lights up.
3. If the LED V2 – DIRTY FILTER on the control panel lights up, it is
necessary to clean or replace the filters.
4. The other buttons V4 are used to control the specific functions, which differ
according to the specifications shown on the V3 display.
5. Adjust the suction arm so that the suction nozzle will be placed from the
side 30 – 50 cm above the welding point.
6. After finishing the work, turn the machine off by means of the long pressing
the OFF button (pos. V5) – the OFF button lights up, then rotate the
ON/OFF switch V1 to the position OFF – the OFF button goes out.
MACHINE CONTROL
Turn the machine on by means of the long pressing the ON button (pos. V6).
After finishing the work, turn the machine off by means of the long pressing the
OFF button (pos. V5). The other buttons V4 are used to control the specific
functions, which differ according to the specifications shown on the V3 display.

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SPECIFICATIONS SHOWN ON THE DISPLAY
 Model / status (ON / OFF)
 Hour meter
 Filter clogging alarm (pressure switch)
 Dirty filter alarm (600 h)
 Serial number
The navigation between the various screens is done using the ▲ and ▼ buttons.
After pressing any button, the V3 display automatically returns to the original
display of model / status after 60 seconds. If there are active alarms, the main
screen is displayed in alternation with the alarm screen in which the numerical
code of the alarm is indicated and the descriptive message.
MENU AND PASSSWORD
There are 4 menus:
 Test menu
 User menu
 Service menu
 Factory menu
The navigation between the various screens is done using the ▲ and ▼ buttons,
the selection of a submenu or exit from a menu is done by pressing ENTER
above the corresponding item. Changing a menu item (if enabled) occurs using
the - and + buttons. In menu mode the arrows ↑ and ↓ are shown on the display
to indicate whether the buttons ▲ and ▼ are enabled, the symbols - and + if the
modification of the menu item is enabled and the symbol ↲ if the ENTER button
is enabled (the entry is associated with the access to the submenu or exit from
the menu).
Access to the user, service and factory menus is performed with the machine
switched off by means of the long pressing special buttons combination and the
password.
Menu Buttons combination Password
User ENTER
ENTER, ENTER,
ENTER, ENTER,
ENTER, ENTER

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The user menu consists of the following items:
 LANGUAGE: language selection for menu displays (except test menu,
only in English) and status / operation
 EXIT: exit from the menu
MACHINE SPECIFIC FUNCTIONS
Hour meter
Stores the count of hours the machine has been ON, with a 10 minutes resolution
(the count displayed is in hours). The count of hours is saved automatically every
10 minutes, so if the machine loses electric power the maximum operating time
lost in the ON state is 10 minutes. When an alarm occurs the hour meter is saved
immediately, so in case of loss of power supply immediately after an alarm
nothing goes lost.
Alarms / warnings
Alarms and warnings are generated in the event of an anomaly only with the
machine ON. To restore them it is necessary to turn the machine off, enter the
service menu - reset alarms and enter the appropriate password. After the
restoration if anomaly conditions persist alarms / warnings will be generated
again when the machine is turned ON. Alarms not restored are re-activated in
case of disconnection and subsequent connection of the power supply. Below is
the list of alarms as they appear on the display V3:
 W01 – DIRTY FILTER: dirty filter warning (threshold defined by the DIRTY
parameter FILT. EDGE of the factory menu, which can be disabled, only
for the machines with analogic pressure switch or 600 h)
 W02 – EXHAUST FILTER: warning of exhausted filter (threshold defined
by the parameter EXHAUST F. EDGE of the factory menu or by the digital
pressure switch if enabled)
6. MAINTENANCE
FILTERS REPLACEMENT
The service life of the filters and the replacement intervals vary according to the
different applications of the extractor. If the filter is clogged, the LED V2 – DIRTY
FILTER on the control panel lights up.
Filters compartment door A, B, C must be unlocked. First pull the filter frame C
(bottom). The other two filters can then be removed more easily.

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It is important to keep in mind that it may be difficult to remove individual filters
due to sealing around the filter perimeter. The seals hermetically seal the entire
filtration assembly to ensure filtration through the maximum filters area.
We recommend replacing all three filters at the same time at least once a
year to ensure maximum filtration efficiency - our replacement filters are cheap
compared to most competitors.
Figure 4 – Unlocking the filter compartment
Figure 5 – Filters replacement
A B C

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Figure 6 – Filters activated carbon replacement Figure 7 – Polyester microfiber filter
To replace the activated carbon filter, unscrew the panel with vents, remove the
old filter and in its place screw the new filter. Do the same on the other side of
the extractor. Spare activated carbon filters are supplied as a pair. If you don’t fit
the extractor with the pair of activated carbon filters, it is advisable to attach the
pair of microfiber filters in their place in the same way (order. No. 5.0507) - they
ensure the reduction in noise levels.
BASIC INFORMATION ABOUT FILTERS
Pos. Code Description Cleaning Flammability
A 5.0232-1 Aluminium mesh
filter
Yes - washable Non-flammable
B 5.0233-1 Polyester
corrugated filter
Yes – with shake DIN 53438 F1
C 5.0234-1 Rigid pocket filter
Yes with
qualification *– by
compressed air
M1
5.0235-1 Filter activated
carbon No
5.0507 Polyester
microfiber filter
Yes with
qualification *– by
compressed air
DIN 53438 F1
ABC 5.0231-1 Set of filters See A, B, C See A, B, C
* When cleaning the filter with compressed air, you have to solve the efficient
exhausting of the blowing dust – for example with our equipment Kit for cleaning
the filters with compressed air.

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ALARM RESET
When the filter Exhaust alarm turns on, it is necessary to replace the filters as
indicated under point 7.3 and to reset alarms in order to restore normal
operation.
To carry out the reset it is necessary to enter the USER menu.
To enter the User menu just press once the button: central
circle (O).
Then the unit will request a password, which is the
following key sequence: central circle (O) + central circle
(O) + central circle (O) + central circle (O) + central circle
(O) + central circle (O).
Once you have entered the menu, scroll down (↓) to the
third position ALARMS RESET.
Press the central button (O) to go in and then type the following key sequence:
arrow down (↓), arrow down (↓), arrow up (↑), circle (O), circle (O).
At this point the alarms are reset and all settings return to zero.
RECOMMENDATIONS FOR MAINTENANCE AND DISPOSAL OF FILTERS
A – METAL FILTER – FIRST FILTRATION LEVEL
We recommend washing this filter at least once a week to ensure
maximum filtration efficiency.
The metal filter is made of inert materials, which – unless they are
contaminated with toxic-harmful substances – can be disposed of as mixed
municipal waste.
B – POLYESTER FILTER - SECOND FILTRATION LEVEL
We recommend cleaning this filter at least once every two weeks to ensure
maximum filtration efficiency.
The polyester filter is made of inert materials, which – unless they are
contaminated with toxic-harmful substances – can be disposed of as mixed
municipal waste.

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C – POCKET FILTER - THIRD FILTRATION LEVEL
We recommend cleaning see BASIC INFORMATION ABOUT FILTERS or
replace this filter at least once a month to ensure maximum filtration efficiency.
The pocket filter is made of inert materials, which – unless they are
contaminated with toxic-harmful substances – can be disposed of as mixed
municipal waste.
FILTER ACTIVATED CARBON - FOURTH FILTRATION LEVEL
The activated carbon filter is made mainly of carbon in the form of graphite
micro-crystals modified to have a maximum porous structure with a large surface
area. Due to this characteristic, they have a high capacity to absorb many
substances.
We recommend replacing this filter at least once a year to ensure
maximum filtration efficiency.
The filter activated carbon is made of inert materials, which – unless they
are contaminated with toxic-harmful substances – can be disposed of as mixed
municipal waste.
MAINTENANCE PROGRAM OF THE EXTRACTOR
Type of inspection or maintenance Method Frequency
Total control of the extractor Visually Daily
Cleaning Manually See note A
Seal control Visually 150 h
Tightening control of nuts and crews Manually 150 h
Filter clogging control Visually or
manu
ally
600 h, see note
B
Fan control Manually See note C
Replacement of bearings Manually 40 000 h, see
note
D
NOTE A
The cleaning interval is variable depending on the type of dirt suction air.
The user must therefore set the interval to ensure the highest possible
cleanliness of the extractor; deposits on fixed parts must not exceed 5 mm of
thickness.

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NOTE B
On the front panel is LED V2 of clogged filter warning. However, we recommend
that you check for clogging whenever the operator feels that the suction power
is reduced. The entire filter assembly should be replaced at least once a year,
even if the clogging indicator does not indicate this.
NOTE C
The fan must be inspected at intervals specified by the user to check the good
condition of the fan – especially check the cleanness of the propeller and the
perfect condition of the engine.
NOTE D
40 000 hours is the life of the bearing. However, external factors such as
increased vibration for a certain running time may reduce bearings life. At the
end of their specified service life, bearings should be replaced even if their
condition appears to be good.

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TROUBLESHOOTING
Symptom Reason Solution
The fan does not
run.
The mains voltage is too
low
.
Check mains voltage.
Missing power supply. Check the plug or socket
connection.
Fan start failure.
Missing power supply. Check the plug or socket
connection
.
The engine is damaged. Let replace engine.
The safety microswitch is
open or damaged.
Check that the filter
compartment door is closed,
that the microswitch is
activated. If necessary, have
the microswitch replaced
.
The LED of dirty
filter is on
.
The filters are clogged. Replace the filters.
The power-on LED
is off.
Poorly inserted plug in the
socket
.
Check plug and socket.
The electrical power supply
to the control panel is
defective
.
Check the supply to the
control panel.
Open electrical circuit
inside the machine.
Check the electrical circuits
in the machine.
The LED is burned. Replace the LEDs.
Energy
consumption is
higher than stated
in the technical
data.
The engine runs with lower
speed than desired.
Check the power supply.
Check the motor windings
for faults and replace the
motor if necessary.
The machine
vibrates
considerably.
Unbalanced rotating
components.
Check the balance of
rotating components
.
Allowed or unsatisfactory
anti-vibration device.
Check the anti-vibration
devices for tightness and
condition
.
Clogged filters.
Check the condition of the
filters and replace if
necessary
.
Air leaks.
Check the machine housing
for leaks. If necessary, block
with silicone
.
Unbalanced propellers.
Check the propeller
condition. If it is dirty, clean
it.

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PROVISION OF WARRANTY
1. The content of the warranty is the responsibility that the delivered machine
has at the time of delivery and during the warranty period, it will have the
properties specified in the binding technical conditions and standards.
2. The responsibility for defects that occur on the machine after its sale within
the warranty period lies in the obligation to repair the defect free of charge
by the machine manufacturer or by a service organization authorized by
the manufacturer.
3. The statutory warranty period is 6 months from the sale of the machine to
the buyer. The warranty period begins on the day the machine is handed
over to the buyer, or the day of possible delivery. The manufacturer
extends this period to 24 months. The warranty period does not include
the period from the application of a justified complaint until the machine is
repaired.
4. Condition of warranty is that the welding machine is used appropriately
and for the purpose for which it is intended. As defects are not recognized
extraordinary wear and damage, which arose from insufficient care or
neglect of even seemingly insignificant defects, failure to fulfill the
obligations of the owner, his inexperience or reduced abilities, failure to
observe the instructions given in the instruction and maintenance manual,
using the machine for purposes for which it is not intended, by overloading
the machine, even temporarily. Only the manufacturer's original parts must
be used for machine maintenance.
5. No modifications or alterations to the machine that may affect the
functionality of the machine components are allowed during the warranty
period.
6. Warranty claims must be made immediately after the production or
material defect has been found at the manufacturer or vendor.
7. If the defective part is replaced during warranty repair, ownership of the
defective part is transferred to the manufacturer.
8. As a warranty list serves proof of purchase (invoice) on which is the serial
number of the machine, eventually a warranty list on the last page of this
manual.

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7. DISPOSAL
Only for EU countries. Do not dispose of electric tools together with
household waste material.
In accordance with European Council Directive 2002/96/EC on
electrical and electronic equipment waste and its implementation in accordance
with national law, electric tools that have reached the end of their service life
must be collected separately and returned to an environmentally compatible
recycling facility.
8. WARRANTY LIST
As a warranty list serves proof of purchase (invoice) on which is the serial
number of the machine, eventually a warranty list below, which is filled in by an
authorized dealer.
Serial number:
Day, month (written in words)
and year of sale:
Stamp and dealer signature: