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that are not approved, or without safety valves.
During the functioning, the air vents and ventilation equipment must not be blocked or covered
HOSES CONNECTION
Hoses may contain refrigerant under pressure. Before substitute the quick coupler verify the
corresponding pressure in the service hoses (gauge).
The machine is equipped with the following safety devices:
SAFETY PRESSURE: stops the compressor in case of excessive
pressure
SAFETY VALVE: opens when the pressure inside the system reaches a
level of pressure above the estimated limits.
MAIN SWITCH: allows the machine's turnoff by sectioning of the power
line. Prescribing however disconnection from the mains plug of the power
cord before servicing
IT IS NOT ALLOWED ANY KIND OF TAMPERING OF THE SAFETY
DEVICES MENTIONED ABOVE
PRECAUTIONS FOR HANDLING AND USE OF
R134a/R456a FLUIDS
Refrigerant fluids expand to the gaseous state in standard environmental conditions. In order
that they may be shipped and used they must be compressed into suitable bottles. We therefore
recommend observing all the general precautions applicable to handling of pressurized
containers. In the case of R134a/R456a in particular, we suggest the following special
precautions. Avoid inhaling highly concentrated vapors even for short periods of time, since such
vapors can cause loss of consciousness or death. R134a/R456a is not flammable, but if the
vapor is exposed to open flames or incandescent surfaces it may undergo thermal
decomposition and form acid substances. The acrid and pungent odor of these products of
decomposition is sufficient to signal their presence. We therefore recommend avoiding use of
R134a/R456a near open flames and incandescent elements. There exists no evidence of risks
deriving from transdermal absorption of R134a/R456a Nevertheless, due to the low boiling point
of the liquid, it is advisable to wear protective garments such as to ensure that no jets of liquid or
gas can come into contact with the skin. The use of goggles to avoid contact with the eyes is
especially recommended, since the refrigerant liquid or gas can cause freezing of the ocular
fluids. Moreover, we strongly advise users to avoid dispersing the R134a/R456a refrigerant fluid
utilized in the machine since it is a substance that contributes to raising the temperature of the
planet, with a global warming potential(GWP) of 1300.
RULES FOR WORKING WITH R1234yf FLUIDS
Under ambient conditions refrigerant fluids are gases. In order to be able to transport and use
them they must be compressed in specific bottles. The precautions for pressure vessels must
therefore be applied.
In particular, for R1234yf be careful of the following situations:
- Inhalation of vapours at very high concentrations, even for short periods of time, must be
avoided as it can cause unconsciousness and sudden death.
- R1234yf is flammable and if the vapour is exposed to naked flames or red hot surfaces it can
undergo thermal decomposition with the formation of acid products. The acrid, pungent
odour of these products of decomposition is sufficient to warn of their presence. Avoid finding
yourself in the conditions just mentioned.
INSTRUCTIONS MANUAL
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