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2.2 GENERAL PRECAUTIONS
The operator must only intervene on the unit commands; he or she must not open any panels except for the one which
gives access to the command module.
The installer must only intervene on the connections between the plant and the machine; he or she must not open any
machine panels nor carry out any commands.
The following precautions should be made when approaching or working on the unit:
•
Do not wear jewelry, baggy clothes or any other accessory which can get caught up.
•
Use appropriate protection (gloves, glasses etc.) when using an open flame (welding) or compressed air.
•
If the unit is located in a closed environment, wear hearing protection.
•
Before disconnecting, removing tubes, filters, joints or other line parts intercept the connection tubes, empty them until
the pressure reaches that of the atmosphere.
•
Do not use your hands to check for possible pressure losses.
•
Always use tools which are in good condition; make sure the instructions have been fully understood before using them.
•
Make sure that any tools, electrical cables or other loose objects have been removed before closing the unit and starting
it up again.
2.3 PRECAUTIONS AGAINST RISKS DUE TO THE REFRIGERANT
Refer to refrigerant safety data sheet.
2.4 PRECAUTIONS AGAINST RESIDUAL RISKS
Prevention from risks due to the command system
•
make sure the instructions for use have been understood before carrying out any work on the control panel.
•
always keep the instruction manual close at hand when working on the control panel.
•
start up the unit only after having certified that it is correctly connected to the plant.
•
inform the technician promptly of any alarms which appear on the unit.
•
do not reset the alarms to manual restart without having first identified the cause and removed it.
2.5 PREVENTION AGAINST RESIDUAL MECHANICAL RISKS
•
install the unit in accordance with the provisions of the following manual.
•
carry out all the maintenance operations provided for by this manual regularly.
•
wear a protective helmet before entering inside the unit.
•
before opening a machine panel make sure that it is firmly connected by means of a hinge.
•
do not touch the air condensation batteries without having first put on protective gloves.
•
do not remove the protections to the moving parts while the unit is running.
•
before restarting the unit make sure that the moving part protections are in the correct position.
2.6 PREVENTION AGAINST RESIDUAL ELECTRICAL RISKS
•
connect the unit to the mains in accordance with the provisions of this manual.
•
carry out all maintenance operations regularly.
•
before opening the control panel or access any electrical component installed on the unit disconnect the unit from the mains
by means of the main switch.
•
check that the unit has been earthen correctly before starting it up.
•
control all the electrical connections and the connection cables paying particular attention to the state of isolation;
replace the cables which are clearly worn or damaged.
•
carry out periodic checks of the wiring inside the panel.
•
do not use cables with an inappropriate section or flying connections not even for a limited period or in an emergency.
2.7 PREVENTION AGAINST RESIDUAL RISKS OF A DIFFERENT NATURE
•
the residual risks due to pressure are mainly coming from a failure of the safety devices. To prevent them it is necessary
to check and replace them when required
•
carry out the plant connections to the unit by following the indications reported on the following manual and on the
panels of the unit itself.
•
if a part is disassembled, make sure that it is correctly reassembled before restarting the unit.
•
do not touch the discharge line of the compressor, the compressor itself or any other tube or component which is inside
the machine without putting on protective gloves.
•
keep a fire extinguisher which is able to put out fires on electrical equipment near the machine.
•
in the event of fire either if it originates on the unit or near it make sure the power supply to the unit is promptly cut and that any
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