5.2 Operating phases
Described below are all the steps that the operator must follow to obtain an optimal result in absolute safety conditions, distinguish-
ing between manual and automatic operation. To check proper functioning of the unit, there is an intelligent device which signals
any faults and warns the operator by means of error messages. An acoustic warning at the beginning of an operation indicates
that the set function has started in the correct condition, and a second acoustic warning indicates when the operation has been
completed.
Before performing the operations described below, to improve system efficiency (both in terms of energy and time) start the vehicle
engine and let the cooling system run for a few minutes so that the A/C system can reach full power, i.e. normal operating condi-
tions.
If you have any doubts or other questions on use of the unit, please do not hesitate to contact our Technical
Service Dept. or an authorised Dealer.
During the refilling operations, there will be a certain quantity of refrigerant in the connection pipes. To drain the
pipes, follow the instructions given in the chapter Pipe draining procedure (pg. 5.8)..
At the end of the various phases there will be different residues in the containers. Adhere to the regulations in
force to dispose of them.
The recovery, vacuum and charging operations must be carried out with the vehicle and the system off (with the
power to the compressor cut).
5.3 Use
We advise you to carefully read through this manual for proper use of the unit.
Activation/deactivation:
- Connect the cable to the mains as described in the chapter “Electric power supply”.
- Enable the red mushroom button positioned on the control panel by turning it slightly to the right.
-
Hold the red ESC button pressed down for 2 seconds to turn the unit on and off. To cut the power to the unit, press the mushroom
button and cut the power to the disconnection switch (electrical socket of the unit).
- If the printer light is on and the rear electric fan is working, it means that the unit is powered.
Indications on the display:
At power on the display appears for a few seconds as shown in Figure 1.
FW indicates the software version of the unit.
DB indicates the database version. Each time the SD card is updated, the version number automatically changes.
Fig. 2 shows the main menu listing the functions and the total quantity of gas in the cylinder.
Fig. 3, below the broken line, shows the data of the unit sensors during any function, while above the broken line, the data, times
and messages relating to the operation in progress (e.g. recovery).
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