Definitions; Access To The Unit; General Precautions; Precautions Against Residual Risks - comatec AQWL Installations- Und Wartungshandbuch

2.2 Definitions

OWNER: means the legal representative of the company, body or
individual who owns the plant where unit has been installed; he/she
has the responsibility of making sure that all the safety regulations
specified in this manual are complied with, along with the national
laws in force.
INSTALLER: means the legal representative of the company who
has been given by the owner the job of positioning and performing
the hydraulic, electric and other connections of unit to the plant: he/
she is responsible for handling and properly installing the appliance,
as specified in this manual and according to the national regulations
in force.
OPERATOR: means a person authorised by the owner to do on unit
all the regulation and control operations expressly described in this
manual, that must be strictly complied with, without exceeding the
scope of the tasks entrusted to him.
ENGINEER: means a person authorised directly by manufacturer or,
in all EC countries, excluding Italy, under his full responsibility, by
the distributor of product, to perform any routine and extraordinary
maintenance operations, as well as any regulation, control, servicing
operations and the replacement 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 accessed 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:
do not wear loose clothing or jewellery or any other accessory tat
n
may be caught in moving parts
wear suitable personal protective equipment (gloves, goggles
n
etc.) when you have to work in the presence of free flames
(welding operations) or with compressed air
if the unit is placed in a closed room, wear ear protection devices
n
cut off connecting pipes, drain them in order to balance the
n
pressure to the atmospheric value before disconnecting them,
2 - Safety (continued)
disassemble connections, filters, joints or other line items
do not use your hands to check for any pressure drops
n
use tools in a good state of repair; be sure to have understood the
n
instructions before using them
be sure to have removed all tools, electrical cables and any other
n
objects before closing and starting the unit again

2.5 Precautions against residual risks

Prevention of residual risks caused by the control
system
be sure to have perfectly understood the operating instructions
n
before carrying out any operation on the control panel
when you have to work on the control panel, keep always the
n
operating instructions within reach
start the unit only after you have checked its perfect connection to
n
the plant
promptly inform the ENGINEER about any alarm involving the unit
n
do not reset manual restoration alarms unless you have identified
n
and removed their cause
Prevention of residual mechanical risks
install the unit according to the instructions provided in this
n
manual
carry out all the periodical maintenance operations prescribed by
n
this manual
wear a protective helmet before accessing the interior of the unit
n
before opening any panelling of the machine, make sure that it is
n
secured to it by hinges
do not touch air condensation coils without wearing protective
n
gloves
do not remove the guards from moving elements while the unit is
n
running
check the correct position of the moving elements' guards before
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restarting the unit
Prevention of residual electrical risks
connect the unit to the mains according to the instructions
n
provided in this manual
periodically carry out all the maintenance operations specified by
n
this manual
disconnect the unit from the mains by the external disconnecting
n
switch before opening the electrical board
check the proper grounding of the unit before start-up
n
check all the electrical connections, the connecting cables, and in
n
particular the insulation; replace worn or damaged cables
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