The systems that have not been properly maintained (not cleaned, not emptied correctly, etc.) can
have high contamination levels, both in the refrigerant and in the oil.
If the history of the system is not known, the refrigerant recovered must at least be recycled before
it is reused.
When the contamination level is not known, you may carry out some preliminary checks with the
kit specifically for acidity and humidity measurements.
4.9.3 Recycling Capacity
The filtering systems of the device must be replaced regularly in order to guarantee device
efficiency.
The recycling must always be carried out, even when tests do not show that they are required.
4.9.4 In General
Before carrying out the refrigerant refilling phase, the A/C system must be emptied and cleaned
(a vacuum operation must be carried out).
Carry out all the procedures as described in this manual in order to guarantee that the A/C system
is not contaminated.
Carry out the scheduled/regular maintenance on the device as required, especially after it has
been used with a highly contaminated refrigerant: it is essential that the contamination from one
operation is not passed on to the following one.
4.10 Additional Safety Rules
This manual contains different types of safety messages directed to the user and that the operator
must follow.
These messages are defined as follows:
DANGER
This message indicates that you may risk severe personal injury
or death.
CAUTION
This message indicates that you may risk damaging people,
things or the charging station.
NOTES and OPERATING TIPS These messages provide clear and useful information.
The safety messages written in this manual cover situations the manufacturer is aware of.
The manufacturer cannot be aware of, evaluate and inform you of all the possible risks.
You must make sure the conditions and procedures do not jeopardize your personal safety.
4.11 Disclaimer
The information, the images and the specifications in this manual are based on the latest
information available at the time of the publication.
The manufacturer reserves the right to make changes at any time and without the obligation to
notify such revisions or changes to any person or organization.
The manufacturer is not liable for errors in this document or for accidental or consequential
damages (including lost profits) related to the supply, the performances or the use of this material.
If necessary, gather further information on health and safety from the specific national agencies
and from the manufacturers of the vehicle, the refrigerant and the lubricant.
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