Maintenance; Maintenance - Safety - Bosch CS 3000 AWP Installations- Und Bedienungsanleitung

Maintenance

Labelling
• Equipment must be labelled reporting the dismantling and emptying
of the refrigerant;
• Labels must be dated and signed;
• Make sure all the equipment is labelled and reporting the presence of
flammable refrigerant.
Recovery
• When removing the refrigerant from the system, please adopt good
practices to remove all refrigerants safely in case of both assistance
or decommissioning operations;
• When transferring the refrigerant into the tanks, make sure only
suitable tanks are used to recover the refrigerant;
• Make sure enough tanks are used;
• All the tanks to be used are designated for the recovered refrigerant
and are labelled for that specific refrigerant (e.g. special tanks for
refrigerant collection);
• Tanks must be equipped with a perfectly-functioning safety valve and
relative interception valves;
• Empty recovery tanks are evacuated and, if possible, cooled before
recovery;
• Recovery equipment must be perfectly functioning with the
respective instruction booklets at hand and they must be suitable to
recover flammable refrigerants. A series of perfectly functioning
calibrates scales must also be available;
• Flexible tubes must be equipped with leak-proof disconnection
fittings in good condition. Before using the recovery machine, make
sure it is in good condition, maintained and that all associated
electrical components are sealed to avoid combustion. In case of a
refrigerant leak, or doubt, please contact the manufacturer;
• The refrigerant recovered must be taken to the supplier in suitable
recovery tanks and with the relative waste transfer note suitably
filled in;
• Do not mix the refrigerants in the recovery units nor in the tanks;
• If it is necessary to remove compressors or compressor oils, make
sure they are evacuated to an acceptable level, so no trace is left of
the flammable refrigerant inside the lubricant. The evacuation
process must be performed before taking the compressors back to
the suppliers;
• The electric resistance must be used with the compressor body only
to accelerate this process;
• Operations to discharge the oil from the system must be performed
in full safety.
Transport, mark and storage
• Transport of equipment containing flammable refrigerants.
Compliance with transport regulations;
• Marking of equipment with symbols. Compliance with local
regulations;
• Disposal of equipment employing flammable refrigerants.
Compliance with national regulations;
• Storage of equipment/devices.The equipment must be stored in
compliance with the instructions provided by the manufacturer;
• Storing packed (unsold) equipment. Packing must be performed in
such a way that mechanical damage to the equipment inside it does
not cause refrigerant leaks. The maximum number of elements that
can be stored together is determined by local regulations.
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11 Maintenance
11.1

Maintenance - Safety

Operate in compliance with safety regulations in force.
To carry out the operations use protection devices: gloves, goggles,
helmet, headphones, protective knee pads.
All operations must be carried out by personnel trained on possible risks
of a general nature, electrical and deriving from operating with
equipment under pressure.
Only qualified personnel can operate on the unit, as required by the
regulation in force.
General
Maintenance must be performed by authorized centres or by qualified
personnel.
The maintenance allows to:
• Maintaining the unit efficiently;
• Reduce the deterioration speed all the equipment is subject to over
time;
• Collect information and data to understand the efficiency state of the
unit and prevent possible faults;
Before checking, please verify the following:
• The electrical power supply line should be isolated at the beginning;
• The line isolator device is open, locked and equipped with the
suitable warning sign;
• Make sure no tension is present;
• After switching the power off, wait at least 10 minutes before
accessing to the electrical panel or any other electrical component;
• Before accessing check with a multimeter that there are no residual
stresses.
Frequency of interventions
Perform an inspection every 6 months, however frequency depends on
the type of use.
Pan inspections should take place at close intervals in the event of:
• Frequent use (continuous or very intermittent use, near the operating
limits, etc.);
• Critical use (service necessary).
Before any work please read the chapter: "Safety Warnings for
operations on units containing R32".
0010045008-001
CS3000 AWP – 6721852570 (2022/11)