Extensions
If an extension cord is used, make sure it is suitable for the
power input and protection degree of the vacuum cleaner.
WARNING!
ATEX variant: extensions, plugged in electrical devices
and adapters cannot be used when the vacuum
cleaner is used for flammable dust.
Minimum section of extension cords:
Maximum length = 20 m
Cord = FROR
Max power (kW)
Minimum section (mm
)
2
WARNING!
Sockets, plugs, cord grips, connectors and installation
of the extension cord must maintain the IP protection
degree of the vacuum cleaner, as indicated on the data
plate.
WARNING!
The vacuum cleaner's power socket must be protected
by a differential circuit-breaker with surge current
limitation that shuts off the power supply when the
current discharged to the ground exceeds 30 mA for
30 msec. or an equivalent protection circuit.
WARNING!
Never spray water on the vacuum cleaner: this could
be dangerous for persons and could short circuit the
power supply.
WARNING!
Comply with the safety regulations governing the
materials for which the vacuum cleaner is used.
03/2017
1.5
3
5
1.5
2.5
4
VHW320 - VHW321 - VHW420 - VHW421 - VHW440
Dry applications
The supplied filters and the dust (if applicable) must be
installed correctly.
WARNING!
Comply with the safety regulations governing the
materials for which the vacuum cleaner is used.
Maintenance and repairs
WARNING!
Disconnect the vacuum cleaner from its power
source before cleaning, servicing, replacing parts or
converting it to obtain another version/variant. The
plug must be removed 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
jeopardize your safety. Moreover, such action would
immediately void the EC declaration of conformity
issued with the device.
7
[ NOTE ]
GB
C393