Airwell VLS 1004 [6/85] English
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Airwell VLS 1004 [6/85] English

Airwell VLS 804 [6/85] English
Page 5
SSaaffeettyy
English
OPERATOR: means a person authorised by the ow-
ner to do on Itelco-Industry unit all the regulation and
control operations expressly described in this ma-
nual, that must be strictly complied with, without ex-
ceeding the scope of the tasks entrusted to him.
ENGINEER: means a person authorised directly by
Itelco-Industry or, in all EC countries, excluding Italy,
under his full responsibility, by the distributor of Itel-
co-Industry product, to perform any routine and ex-
traordinary maintenance operations, as well as any
regulation, control, servicing operations and the re-
placement of pieces, as may be necessary during
the life of the unit.
2.3 Access to the unit
The unit must be placed in an area which can be ac-
cessed also by OPERATORS and ENGINEERS;
otherwise the unit must be surrounded by a fence at
not less than 2 meters from the external surface of the
machine.
OPERATORS and ENGINEERS must enter the fenced
area only after wearing suitable clothing (safety
shoes, gloves, helmet etc.). The INSTALLER personnel
or any other visitor must always be accompanied by
an OPERATOR.
For no reason shall any unauthorised personnel be
left alone in contact with the unit.
2.4 General precautions
The OPERATOR must simply use the controls of the
unit; he must not open any panel, other than the one
providing access to the control module.
The INSTALLER must simply work on the connections
between plant and machine; he must not open any
panels of the machine and he must not enable any
control.
When you approach or work on the unit, follow the
precautions listed below:
I
do not wear loose clothing or jewellery or any
other accessory tat may be caught in moving parts
I
wear suitable personal protective equipment (glo-
ves, goggles etc.) when you have to work in the
presence of free flames (welding operations) or
with compressed air
I
if the unit is placed in a closed room, wear ear pro-
tection devices
I
cut off connecting pipes, drain them in order to ba-
lance the pressure to the atmospheric value before
disconnecting them, disassemble connections, fil-
ters, joints or other line items
I
do not use your hands to check for any pressure
drops
I
use tools in a good state of repair; be sure to have
understood the instructions before using them
I
be sure to have removed all tools, electrical cables
and any other objects before closing and starting
the unit again
2.5 Precautions against residual risks
Prevention of residual risks caused by the
control system
I
be sure to have perfectly understood the operating
instructions before carrying out any operation on
the control panel
I
when you have to work on the control panel, keep
always the operating instructions within reach
I
start the unit only after you have checked its perfect
connection to the plant
I
promptly inform the ENGINEER about any alarm
involving the unit
I
do not reset manual restoration alarms unless you
have identified and removed their cause
Prevention of residual mechanical risks
I
install the unit according to the instructions provi-
ded in this manual
I
carry out all the periodical maintenance opera-
tions prescribed by this manual
I
wear a protective helmet before accessing the inte-
rior of the unit
I
before opening any panelling of the machine,
make sure that it is secured to it by hinges
I
do not touch air condensation coils without wea-
ring protective gloves
I
do not remove the guards from moving elements
while the unit is running
I
check the correct position of the moving elements’
guards before restarting the unit
Prevention of residual electrical risks
I
connect the unit to the mains according to the in-
structions provided in this manual
I
periodically carry out all the maintenance opera-
tions specified by this manual
I
disconnect the unit from the mains by the external
disconnecting switch before opening the electrical
board
I
check the proper grounding of the unit before start-
up
I
check all the electrical connections, the connecting
cables, and in particular the insulation; replace
worn or damaged cables
VLS-eng.qxp 12-04-2007 14:43 Pagina 5

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