observe any of the above safety precautions will invalidate all forms of guarantee on the
MACHINE.
PRECAUTIONS FOR HANDLING AND USE OF REFRIGERANT 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 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 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 near open flames and incandescent elements. There exists no evidence of risks
deriving from transdermal absorption of R134a. 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 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.
PRINCIPLES OF OPERATION
In a single series of operations, the machine permits recovering and recycling refrigerant fluids
with no risk of releasing the fluids into the environment, and also permits purging the A/C
system of humidity and deposits contained in the oil. The machine is equipped with a built-in
evaporator/separator that removes oil and other impurities from the refrigerant fluid recovered
from the A/C system and collects them in a container for that purpose. The fluid is then filtered
and returned perfectly recycled to the bottle installed on the MACHINE.. The machine also
permits running certain operational and seal tests on the A/C system.
SETUP
The machine is supplied fully assembled and tested. Referring to Figure 3, mount the hose
with the BLUE quick-connect coupling on the male threaded connector indicated by the BLUE
LOW PRESSURE symbol and the hose with the RED quick-connect coupling on the male
threaded connector indicated by the RED HIGH PRESSURE symbol. Referring to Figure 4,
remove the protection under the refrigerant scale as follows::
- Loosen the nut [2].
- Completely loosen the screw [1].
- Keep the screw [1], the nut [2], and the knurled washer [4] for possible future use.
NOTE: in the event that the equipment has to be transported, the refrigerant bottle scale
should be locked in place as follows::
- Procure two size 10 wrenches.
- Tighten the nut [2] almost completely onto the screw [1].
- Insert the knurled washer [4] onto the screw [1].
- Turn the screw [1] just a few times on the threaded bush [6].
- Switch the machine on.
- Tighten the screw [1] until the display signals ZERO availability.
- Tighten the nut [2] forcefully (using the second wrench to block the screw [1]).
- Check that the screw [1] is actually locked, if necessary repeat the locking operation
from the beginning.
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