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Precautions against risks due to the refrigerant
Safety data
R410a
Toxicity
Not important
Splashes or sprinkles can cause chill burns. The risk of absorptions through the skin is not relevant.
Those refrigerants could take some lightly irritating effects and in liquid stage they have a strong skinning
effect. In this case it is necessary to rinse with fresh water the contaminated parts of the skin
Risks for skin touching
The refrigerant in liquid stage in contact with wet clothes cause freezing and adherence to the skin. In this
case it is necessary to put off the contaminated clothes to avoid freezing. Please contact a doctor in case of
irritation of the contaminated parts.
Vapours don't take any effect. Splashes or sprinklers can cause chill burns. In those cases it is necessary to
Risks for contact with
rinse the eyes with water or with solution for ocular washings for 10 minutes. The intervention of a doctor is
the eyes
needed.
Should it happen, it causes chill burns. It does not cause vomiting. The person must be kept awake. It is
Risks for ingestion
needed to rinse the mouth with fresh water and to drink almost 0,25 litres. The intervention of a doctor is
useful.
High concentration of vapours in air can lead to anaesthetic effects up to a loss of conscience. Long
exposures could give rise to cardiac arrhythmia and sometimes even to death.
High concentrations can create a reduction of oxygen in air, with consequent possibility of suffocation.
Risks for inhalation
Should it happen the person must be taken to the open air and let him to take a rest.
Administer oxygen if needed. In case the breathing has interrupted or become irregular, it is necessary to
apply the artificial breathing. In case of cardiac arrest a heart massage must be applied. Contact a doctor
immediately.
Conditions to avoid
Use in presence of exposed flames, and of elevates levels of humidity.
Dangerous reactions
Possibility of violent reactions with the sodium, the potassium, the barium and with other alkaline
substances, incompatible materials and all the alloys containing more than 2% of magnesium.
Wear protection apparel and self-respirators. Insulate the source of the loss, if this operation can be done
Protection wearing -
in safety conditions. Small quantitative of refrigerant escaped at liquid state can be allowed to evaporate
Behaviour in case of
only if the room is well ventilated. In case of great losses ventilate the room immediately. Plug the loss
losses or escapes
with sand, soil or other absorbent material; avoid that the liquid refrigerant can enter in water-drainages or
losing pools.
The best procedure is the recovery and the recycle. If this is not possible the refrigerant must be conferred
Disassembly
to an accredited system for its destruction in order to neutralize acid and toxic by-products.
Precautions against residual risks due to the control 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.
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 coils 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.
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 disconnect the unit from the mains by means of the external knife switch.
•
check that the unit has been earthen correctly before starting it up.
•
control all the electrical connections, 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.
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