Nilfisk-ALTO ATTIX 751-01/-11/-21 User manual

ATTIX 751-01/-11/-21
Nilfisk-ALTO
Brand
Nilfisk-ALTO
Model
ATTIX 751-01/-11/-21
Type
User manual

This manual is also suitable for

ATTIX 751-01/-11/-21
ATTIX 751-2M/-0H
ATTIX 761-21XC/-2MXC
ATTIX 763-21ED/-2MED
ATTIX 791-21/-2M/B1
ATTIX 751-61/-71
ATTIX 19 Gallon/-AE
ATTIX 19 Gallon/AS/PE2
Repair Manual
A. Safety instructions
B. Technical data
C. Components
D. Operation
E. Troubleshooting
F. Spare parts
G. Tools
H. Wiring
Nilfisk
ALTO
Attix7_ver.1.0_140105
Preface .....................................................................7
Symbols used to .....................................................................7
mark instructions
A Safety instructions .....................................................................8
B Technical data .....................................................................9
C Components 1 Trolley with container and adapter ring....... 12
2 Cleaner heads............................................. 12
3 Filter cleaning.............................................. 13
4 Suction turbines.......................................... 14
5 Electrical components................................. 15
D Operation 1 Automatic filter cleaning
(Attix 761/-21XC/-2M / 763-21ED/-2MED
19 Gallon/AS/P2)......................................... 17
2 EC drive (Attix 791-21/-2M/B1)....................17
3 EC-3 electronics (Attix 791-21/-2M/B1)........17
4 Electronic starter,
EC-3 electronics (Attix 791-21)....................17
5 Electronic flow sensor (Attix 791-2M/B1).....17
6 Layout of electronic flow sensor EC
(Attix 791-2M/B1).........................................18
7 Electronic soft start
(Attix 751-01/-11, Attix 19 Gallon)................ 18
8 Electronic starter with speed control
(Attix 751-21)............................................... 18
9 Electronic flow metering (Attix 751-0H)....... 18
10 Electronic flow metering (Attix 751-2M)...... 18
11 Electronic magnet control (Attix 761-21XC,
763-21ED, 9 Gallon/AS/PE2)...................... 18
12 Electronic flow sensor XC (Attix 761-2MXC,
763-2MED).................................................. 18
13 Turbine/temperature monitoring
(Attix 751-61/-71, 19 Gallon AE).................. 19
14 Electronic level control
(Attix 751-61/-71, 19 Gallon AE).................. 19
15 Layout of electronic level control
(Attix 751-61/-71, 19 Gallon AE). 21
E Troubleshooting 1 ESD (electrostatic discharge)..................... 22
2 Troubleshooting on unit............................... 22
2.1 Unit will not work (all units with
brush motor). ............................................ 22
Contents
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Nilfisk
ALTO
Attix7_ver.1.0_140105
2.2 Unit will not work (all units with
EC drive)......................................................23
2.3 Warning sound! (all cleaners)...................... 24
3 Trolley/container...........................................25
3.1 Removing/fitting castors (all models except
Attix 751-71)................................................ 25
3.2 Removing/fitting wheels (all models except
Attix 751-71)................................................ 25
3.3 Removing/fitting feet (Attix 751-71)............. 25
3.4 Removing/fitting wheels (Attix 751-71)........ 26
3.5 Removing/fitting grips (all models except
Attix 751-71)................................................ 26
3.6 Removing/fitting lock (all models)................ 26
3.7 Removing/fitting grip with tensioning band
(all models).................................................. 27
3.8 Removing/fitting belt (all models)................ 28
3.9 Removing/fitting pump (Attix 751-61/-71,
19 Gallon AE).............................................. 29
3.10 Removing/fitting non-return pipe
(Attix 751-61/-71, 19 Gallon AE).................. 29
4 Cleaner head............................................... 30
4.1 Removing/fitting grip (Attix 751-61/-71,
19 Gallon AE).............................................. 30
4.2 Removing/fitting grip (Attix 751-01/-11/-21,
751-2M/-0H, 791-21/-2M/B1, 19 Gallon)..... 30
4.3 Removing/fitting grip (Attix 761-21XC/-2M
XC, 763-21ED/-2MED, 19 Gallon./AS/PE2).30
4.4 Removing/fitting hood (Attix 751-01/-11/-21/
-2M/-0H, 791-21, 751-61/-71, 19 Gallon AE)30
4.5 Removing/fitting hood (Attix 761-21XC/-2MXC,
763-21ED/-2MED, 19 Gallon/AS/PE2)........ 30
4.6 Removing/fitting cooling air filter
(Attix 791-2M/B1).........................................31
4.7 Removing/fitting hood (Attix 791-2M/B1)..... 31
4.8 Removing/fitting locking clamps (Attix
751-01/-11/-21/-2M/-0H, 761-21XC/-2MXC,
763-21ED/-2MED, 751-61/-71,
19 Gallon AE, 19 Gallon/AS/PE) .................32
4.9 Removing/fitting locking clamps
(Attix 791-21)............................................... 32
4.10 Removing/fitting locking clamps
(Attix 791-2M/B1).........................................32
5 Suction turbine.............................................33
5.1 Removing/fitting clamping plate
(Attix 751-01/-11/-21/-2M/-0H/-61/-71,
19 Gallon AE)............................................... 33
5.2 Removing/fitting clamping plate (Attix
761-21XC/-2MXC, 763-21ED/-2MED,
19 Gallon/-AE)............................................. 33
5.3 Removing/fitting clamping plate
(Attix-791-21)............................................... 33
5.4 Removing/fitting clamping plate
(Attix 791-2M/B1).........................................33
Contents
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Nilfisk
ALTO
Attix7_ver.1.0_140105
5.5 Removing/fitting bracket for filter tightener
(Attix 761-21XC/-2MXC,
763-21ED/-2MED, 19 Gallon/AS/PE2)........ 33
5.6 Removing/fitting hose for level monitoring
(Attix 761-21XC/-2MXC,
763-21ED7-2MED, 19 Gallon/AS/PE,
751-61/-71, 19 Gallon AE)........................... 33
5.7 Removing/fitting motor carbon brushes
(all models except with EC drive)................ 34
5.8 Removing/fitting motor (all models except
with EC drive).............................................. 34
5.9 Checking motor, removing/fitting motor
(Attix 791-21/-2M/B1)...................................34
6 Automatic filter cleaning
(Attix 761-21XC/-2MXC, 763-21ED/-2MED,
19 Gallon/AS/PE2).......................................34
7 Electrical...................................................... 35
7.1 Removing/fitting electrical components....... 35
7.2 Removing/fitting power cord (Attix 751-01/-11
-21/-0H/-2M/-61/-71, 791-21, 19 Gallon AE)35
7.3 Removing/fitting power cord (Attix 761-21XC/
-2MXC, 763-21ED/-2MED, 19 Gal/AS/PE2).35
7.4 Removing/fitting socket (Attix 791-2M/B1)...35
7.5 Removing/fitting power cord
(Attix 791-2M/B1).........................................36
7.6 Checking electronic flow metering EC in
manual mode (Attix 791-2M/B1).................. 37
7.7 Checking electronic flow metering EC in
automatic mode (Attix 791-2M/B1).............. 38
7.8 Checking flow sensor detection (performance)
of electronic flow metering
(Attix 751-2M/-0H, 761-2MXC, 763-2MED,
791-2M/B1).................................................. 39
7.9 Checking and calibration (adjustment)
of flow sensor (Attix 751-2M/-0H, 761-
2MXC, 763-2MED, 791-2M/B1)...................39
7.10 Removing/fitting electronic flow metering EC
(Attix 791-2M/B1).........................................39
7.11 Checking electronic level control in manual
mode (Attix 751-61/-71,19 Gallon AE)......... 40
7.12 Checking electronic level control in
automatic mode (Attix 751-61/-71,
19 Gallon AE)...............................................41
7.13 Calibrating electronic level control
(Attix 751-61/-71, 19 Gallon AE).................. 43
7.14 Removing/fitting electronic level control
(Attix 751-61/-71, 19 Gallon AE).................. 43
7.15 Checking temperature sensor
(Attix 751-61/-71, 19 Gallon AE).................. 44
7.16 Removing/fitting temperature sensor/
flow sensor (Attix 751-61/-71/-2M/-0H,
19 Gallon AE, 763-2MED, 791-2M/B1).........44
Contents
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Nilfisk
ALTO
Attix7_ver.1.0_140105
7.17 Checking, removing/fitting electronic soft
start (Attix 751-01/-11, 19 Gallon)................ 44
7.18 Checking, removing/fitting electronic EA
with speed control (Attix 751-21)................. 44
7.19 Checking, removing/fitting electronic flow
metering (Attix.751-2M/-0H)........................ 44
7.20 Checking, removing/fitting electronic magnet
control (Attix 761-21XC, 763-21ED,
19 Gallon/AS/PE2).......................................44
7.21 Checking level monitoring
(Attix 761-21XC/-2MXC, 763-21ED/-2MED,
19 Gallon/AS/PE2)......................................44
7.22 Checking, removing/fitting electronic flow
sensor XC (Attix 761-2MXC, 763-2MED).... 45
7.23 Potentiometer (hose diameter)
(Attix 751-2M, 761-2MXC, 263-2MED,
791-2M/B1).................................................. 45
7.24 Checking piezo buzzer (Attix 751-2M/-0H,
761-2MXC, 763-2MED, 791-2M/B1)............45
7.25 Checking, removing/fitting electronic EA.
with speed control EC-3 (Attix 791-21)........ 45
7.26 Checking, removing/fitting electronic EC-3
(Attix 791-21/-2M/B1)...................................45
7.27 Checking, removing/fitting RFI filter/
varistor (Attix 791-21/-2M/B1)......................45
F Spare parts ............................................................................. 46
G Tools 1 Special-purpose tools.................................. 47
H Wiring 1 Wiring diagram (Attix 751-01)...................... 48
2 Wiring diagram (Attix 751-11, 19 Gallon)..... 49
3 Wiring diagram (Attix 751-21)...................... 50
4 Wiring diagram (Attix 751-2M)..................... 51
5 Wiring diagram (Attix 751-0H)..................... 52
6 Wiring diagram (Attix 761-21XC,
763-21ED)................................................... 53
7 Wiring diagram (Attix 761-2MXC,
763-2MXC).................................................. 54
8 Wiring diagram (Attix 791-21)...................... 55
9 Wiring diagram (Attix 791-2M/B1)................56
10 Wiring diagram (Attix 751-61,
19 Gallon AE)...............................................57
11 Wiring diagram (Attix 751-71)...................... 58
12 Wiring diagram (Attix 19 Gallon AS/PE2).... 59
Contents
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Nilfisk
ALTO
Attix7_ver.1.0_140105.
In this manual you will find
the essentials you need
to know when repairing
wet and dry cleaners of
the Attix 7 and 19 Gallon
series.
When carrying out re-
pairs, make sure you
have a suitable work-
bench or the like with the
necessary power supply
available.
If you determine an error
in operation, be sure to
refer the customer to the
user manual.
A fault in the equipment
can have a number of cau-
ses. Chapter E Trouble-
shooting will help you
here.
Use the illustrated spare
parts lists for your repairs.
These show you the locati-
on of the individual parts
and the sequence in which
they are assembled.
Read the technical infor-
mation sheets. These will
tell you about any techni-
cal modifications made
after publication of this
repair manual.
Technical information
sheets are a supplement
to the spare parts list until
a follow-on publication.
Repair manuals and tech-
nical information sheets
should be available at the
site where repairs are car-
ried out. Further repair
manuals of the Attix series
may be necessary for
repairs to the equipment.
It is not permitted to give
them to third parties.
Use original Nilfisk
ALTO spare parts only!
Symbols used to mark in-
structions
Safety instructions mar-
ked with this symbol in
this manual must be ob-
served to prevent danger
to persons.
This symbol is used to
mark safety instructions
that must be observed to
prevent damage to the
equipment and degradati-
on of performance.
This symbol indicates tips
and instructions to simpli-
fy work and to ensure safe
operation.
☞
Preface
7/59
A
Nilfisk
ALTO
For your own safety
Repairs should only be
made by someone who
has received proper
instructions for the job
or who is a qualified elec-
trician.
Observe national safety
directives and regulations
for the electrical enginee-
ring trade, in particular:
IEC 60335-2-69
EN 60335-2-69
DIN VDE 105 part 1:
operation of electrical
power installations
DIN VDE 0701/0702:
repair, modification and
testing of electrical instal-
lations
Before starting the equip-
ment, be sure to read the
accompanying service
manual, and keep it close
as ready reference.
The equipment should
only be used by persons
who have been instructed
in its use and are authori-
zed to do so.
ESD (electrostatic
discharge)
Observe the following ESD precautions before any
repair of or near electronic parts:
• Touch the protective conductor to discharge your own
body.
• Possibly wear an anti-static wrist strap.
• Use a conducting floor or tabletop.
• Never touch a circuit board or electronic components,
always hold them by the plastic or insulation.
• Transport electronic parts in conductive packaging
(e.g. special ESD packages).
Attix7_ver.1.0_140105
Safety instructions
S
afe
t
y In
s
t u
c
t
ionsr
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Nilfisk
ALTO
Attix7_ver.1.0_140105
Version /
Type
Attix
751-01 751-21 751-2M
National
Variants
ZA EU DK CH GB 110V
GB
230V
EU EU EU DK EU DK
GB
110V
GB
230V
Voltage
V 110 110 230
Frequency
Hz
Fusing
A 25 13 10 16 10 25 13
Power consumption PIEC
W
Connected load for
appliance socket
W - 2400 1550 1800 2400 1100 1550 1800
Total connected load
W - 3600 2750 3000 3600 2300 2750 3000
Power cord lenght
m 10 10
Power cord type
H05RR-
F3G0,75
H05RR-
F3G1,5
H07BQ-F
3G2,5
H07RN-
F3G1,5
H05RR-
F3G1,0
H05RR-
F3G1,5
H05RR-
F3G1,0
H07BQ-F
3G2,5
H05RR-
F3G1,5
Protection class
II
Protection category
RFI suppression
Width
mm
Depth
mm
Hight
mm
Weight
kg
Tank volume
l
Air volume flow (max)
l/min
Static wate lift (max)
Pa
Sound pressure level at
1m, EN 60704-1
dB(A)
Operating noise
dB(A)
751-11 751-0H 761-21 XC
230 230
50/60
16 10
I II
970
25 27
7,5
I
7,5
H05RR-
F3G1,0
H05RR-
F3G1,5
1100
2300
2400
3600
-
-
Dimensions
and wight
Unit-specific
data
IPX4
EN 55014-1
580
605
57
64 60
3600
Electrical data
70
12001000
16
1200
Protec-
tion
23000
64
3600 3100
23000 20000
Technical Data
T
ech
n
ic
al
d
ata
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ALTO
Attix7_ver.1.0_140105
Version /
Type
Attix 763-21 ED 761-2M XC 763-2M ED 791-21 751-71
National
Variants
EU EU EU EU EU
GB
110V
GB
230V
EU DK CH EU
Voltage
V 230 230 230 230 230 110 230 230
Frequency
Hz
Fusing
A 25 13 16 16
Power consumption PIEC
W
Connected load for
appliance socket
W 1550 1800
Total connected load
W 2750 3000
Power cord lenght
m 10 10(FI)
Power cord type
H07RN-
F3G1,5
H07BQ-F 3G2,5
H07RN-
F3G1,5
Protection class
Protection category
RFI suppression
Width
mm 480
Depth
mm 510
Hight
mm 1284 970
1280
875
Weight
kg 17 27 17 31
Tank volume
l 30 70 30
Air volume flow (max)
l/min
Static wate lift (max)
Pa
Sound pressure level at
1m, EN 60704-1
dB(A)
Operating noise
dB(A)
3600
7,5
23000
64
580
605
3600
970
70
791-2M/B1 751-61
230
10
50/60
16
Dimensions
and wight
25
Unit-specific
data
I
IPX4
33
EN 55014-1
57
1200
2400 650
Protec-
tion
Electrical data
H05RR-
F3G1,5
H05RR-
F3G1,0
H05RR-
F3G1,5
1850
7,5
Technical Data
Tec
h
nical dat
a
10/59
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Nilfisk
ALTO
Attix7_ver.1.0_140105
Version /
Type
Attix
19 Gallon 19 Gallon-AS/PE2
Voltage
V
Frequency
Hz
Fusing
A
Power consumption
HP 1,4 1,4
Connected load for
appliance socket
HP 0,5 0,5
Total connected load
HP
Power cord lengt
ft 25 25
Power cord type
SJTW-A
AWG14/3
SJTW-A
AWG14/3
Protection class
Protection category
RFI suppression
Width
in
Depth
in
Height
in
Weight
ib 55 60
Tank volume
gal
Volume flow (air)
cfm
Static water lift
in
Sound pressure level at
1m EN 60704-1
dB(A)
Operating noise
dB(A)
127
93
64
19 Gallon-AE
73
24
38
1,9
I
IPX4
EN 55014-1
Unit-specific
data
57
120
60
15
Protection Electrical DataDimensions
and weight
23
19
1,1
0,8
SJTW-A AWG14/3
35
Technical Data
Tec
h
nical dat
a
11/59
C
Nilfisk
ALTO
Attix7_ver.1.0_140105
1 Trolley with container and adapter ring
1) Base frame
2) Adapter ring
3) Container
4) Belt
2 Cleaner heads
Attix 751-01,-0H Attix 751-11/-21, Attix 19 Gallon
Attix 761-21XC
Attix 791-21
3
2
4
Attix7 3516
1
Attix5 0602
Attix5 0601
Components
Components
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ALTO
Attix7_ver.1.0_140105
Attix 751-2M
Attix 761-2MXC
Attix 763-2MED
Attix 19 Gallon/AS/PE2XC
Attix 791-2M/B1
Attix 751-61/-71
Attix 19 Gallon AE
3 Filter cleaning All units with automatic filter cleaning.
Filter cleaning with the Attix 7 is the same as for the
Attix 560-XC (see repair manual Attix 550/560, section
“Components” page 13).
Attix7 3517
Attix5 2903
Attix7 3508
Attix7 3608
Components
Components
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ALTO
Attix7_ver.1.0_140105
4 Suction turbines
Attix 751-01/-11/-21/-2M/-0H/-61/-71
Attix 19 Gallon/-AE
Attix 761-21XC/-2MXC
Attix 763-2M ED
Attix 19 Gallon/AS/PE2XC
Attix 791-21
Attix 791-2M/B1
Attix5-0445
Attix5-2913
Attix EC-2809
Components
Components
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ALTO
Attix7_ver.1.0_140105
5 Electrical components
Electronic flow metering EC
Attix 791-2M/B1
Electronic level control
Attix 751-61/71
The following Attix 7 models are fitted with the same electronic circuitry used in
other units:
Attix
Electronic
soft start
Electronic
EA
Electronic
flow
metering
Electronic
magnet
contol
Electronically
identical to Attix
See section
"Components" in
repair manual
751-01/-11
19 Gallon
X
550-01,
12 Gallon
Attix 550/560
page 14
751-21
X
550-21,
12 Gallon RDF
Attix 550/560
page 14
751-2M
X
550-2M/-2H
Attix 550/560
page 14
751-0H
X
550-0H
Attix 550/560
page 14
761-21XC,
763-21ED,
19Gallon/AS/
PE
X
560-21XC,
12 Gallon RDFD
Attix 550/560
page 14
761-2M/XC,
763-2M/ED
X 560-2MXC/-2HXC
Attix 550/560
page 14
791-21
X
590-21,
12 Gallon EC
Attix 590-21
page 8
Attix7 3631
Attix7 3634
Components
C
o
m
p
on
n
t
se
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ALTO
Attix7_ver.1.0_140105
PRCD circuit-breaker
Attix 751-71
Submersible pump
Attix 751-61/-71
Attix 19 Gallon AE
Attix7-3640
Attix7-3638
Attix7-2360
GFCI circuit-breaker
Attix 19 Gallon-AE
Components
C
o
m
p
on
n
t
se
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ALTO
Attix7_ver.1.0_140105
5 Electronic flow sensor EC (Attix 791-2M/B1)
The following Attix 7 functions are identical to other models:
Several functions are
integrated on this circuit
board:
-Main switch
Man - 0 - Auto ‘
- Speed control
- Remote control of EC
drive
- Soft start
- Automatic starter for
electrical tools
- Flow detection by flow-
sensor
- Setting of different hose
diameters
Alto no.: 302001710
(200–230 Vac/50–60 Hz)
Alto no.: 302001709
(100–120 Vac/50–60 Hz)
Operating data:
saved operating data can
be read out on the Alto ter-
minal (no. 301 000 383 for
operating data retrieval).
LED functions:
Green LED flashes:
unit on standby
Green LED on:
flow > 22 m/s
Yellow LED on:
flow > 20 m/s and < 22
m/s
Red LED on:
flow < 20 m/s plus buzzer
sounds
Soft start:
the motor always makes a
soft start.
Main switch, speed con-
trol, automatic starter:
as described in Attix
550/560 repair manual
section D.
Flow sensor:
as described in Attix
550/560 repair manual,
section D.
Operation
nOpera
tio
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ALTO
Attix7_ver.1.0_140105
6 Layout of electronic flow sensor EC (Attix 791-2M/B1)
Pw
rl
i
no
e e
e
S
p e
d
e
po
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n
tio
me
te
r
Mai
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hn
s
it
M
otor
te
rm nal
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1
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ri
ju
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p
JS 1
e
r
i
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o
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s
en
s
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0 830
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0
42
rm
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l
Te in
pie
zo
zb
u
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r
Hose
d
ia
e
term
ti etep
oten
om
r
LE
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D
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e
ll
owy
L
E
D
g
reen
Terminal
co p
ss
e
d
r
m re ai
f
ow
m
oni
orl t
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1
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o
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ke
t
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t
u
tl
l
tz
wire
i
Op
e
ratin
g
d
ata
u
rea
d
o
t
P
lu
g-in
j
um
p
er
s
raelf
-c
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b
ti
on
C
a
l
b
ra
ti
i o
n
butt
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1
6
C nn
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r
fo
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to r
r m
ote ntr
o
e
c
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o
f EC rive d
The following Attix 7 functions are identical to other models:
Attix
751-01/-11
19 Gallon 751-21 751-0H 751-2M
761-21XC
763-21ED
19 Gal./AS/PE2
761-2MXC
763-2MED
Function
identical to
Attix
See section
"Operation" in
repair manual
7
Technical
description of
electronic
softstart
X
550-01
12 Gallon
Attix 550/560
8
Technical
description of
electronic
automatic starter.
X
550-21
12 Gal.RDF
Attix 550/560
9
Technical
description of
electronic flow
measurment
X 550-0H
Attix 550/560
10
Technical
description of
electronic flow
measurment
X
550-2M/-2H
Attix 550/560
11
Technical
description of
electronic magnet
control
X
550-21
12 Gal.RDFD
Attix 550/560
12
Technical
description of
electronic flow
measurement XC
X
560-2MXC/-
2HXC
Attix 550/560
Operation
n
O
p
e
r
at
i
o
18/59
D
Nilfisk
ALTO
Attix7_ver.1.0_140105
A sensor in the exhaust air duct (like flow sensor)
measures the temperature of the air from the turbine.
If the turbine reaches a temperature of more than
85°C, motor speed is reduced.
13 Turbine / temperature monitoring (Attix 751-61/-71,19 Gallon AE)
14 Electronic level control
(Attix 751-61/-71, 19 Gallon AE)
Alto no.: 302001712
(200–230 Vac/50–60 Hz)
Alto no.: 302001711
(100–120 Vac/50–60 Hz)
Several functions are inte-
grated on this circuit
board:
- Main switch Pump -
Auto - 0 - Man
- Speed control in manu
al
- Soft start
- Level control
- Turbine temperature-
monitoring
Main switch:
this allows selection of
three modes.
Pump:
momentary contact for
emptying the container.
One-time operation
causes the pump to run for
30 s.
Man:
the turbine immediately
starts.
Auto:
the turbine and pump are
controlled as a function of
the level.
Speed control:
the integrated speed con-
trol only works in Man
mode. The control range
is 90° to 130°.
Advantages:
- Optimal matching of
suction capacity to the
application
- Prolonged turbine servi-
ce life
- Reduced noise emissi-
on
- Power savings
LED functions:
Green LED (D2) on:
operating voltage applied
Green LED (D6) on:
pump on
Green LED (D7) on:
motor on
Red LED (D3) flashes:
microprocessor working
Red LED (D5) on:
level - turn off motor
Yellow LED (D4) on:
level - turn on pump
Continued on page 20
Operating data:
saved operating data can
be read out on the Alto ter-
minal (no. 301 000 383 for
operating data retrieval).
Operation
n
O
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e
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at
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19/59
D
Nilfisk
ALTO
Attix7_ver.1.0_140105
Level control:
Level control by means of a pressure sensor is imple-
mented to optimize working with the equipment. The le-
vel in the container is metered in a rubber baffle pi-
pe.The pressure sensor measures the difference in pres-
sure between the container and the baffle pipe. Rising
water level increases the pressure in the pipe. The pres-
sure in the baffle pipe increases linearly with water level.
Man mode:
The electronic circuitry cuts out the turbine upwards of
a defined pressure (water level), and remains in this
status until the cleaner is turned off and the container
emptied. The pump cannot be started in manual
mode. The power of the turbine can be altered by
speed control.
Auto mode:
Only the suction turbine runs when there is no water in
the container. When the container fills with water, the
pump is turned on. If more water flows into the container
than the pump can convey out of the container, the level
continues to rise. To prevent overfilling, the suction tur-
bine is cut out at maximum level. As soon as the water le-
vel is significantly reduced by the pump, the suction mo-
tor is cut in again. Upon total emptying of the container,
the pump is cut out with a time delay.
Pump mode:
The Pump switch setting is a momentary contact (auto-
matic reset). One-time actuation causes the pump to
work for 30 s. This function can be used to completely
empty the container. At the same time this is a safeguard
against the pump running when it is dry.
Operation
n
O
p
e
r
at
i
o
20/59
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Nilfisk-ALTO ATTIX 751-01/-11/-21 User manual

ATTIX 751-01/-11/-21
Nilfisk-ALTO
Brand
Nilfisk-ALTO
Model
ATTIX 751-01/-11/-21
Type
User manual
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