CAP. 12 - MANUAL CYCLES 50 / 74 ENGLISH
ClimFill Maxi
POSSIBLE ERROR INDICATION:
The amount of refrigerant in the A/C service units tank is less than that
required. Closed hoses, injection impossible.
12.5 OPERATION CONTROL (EXCLUDING BUSES)
The pressure check requires the engine to be started once the service equipment has
been connected to the vehicle.
Before proceeding, refer to the original technical documentation to determine whether
this is allowed by the vehicle's manufacturer, and for any safety and operational
precautions.
We provide an example of a pressure check procedure below.
To check the condition of the vehicle's A/C system, for example if cool air does not
come out of the ports, you can check the system pressures. Connect the HP (High
Pressure) – LP (Low Pressure) couplings or single coupling to the vehicle’s A/C system.
In the main menu, select MANUAL CYCLES and OPERATION CONTROL. Then confirm
and enter the ambient temperature.
Open the couplings (or coupling) by turning the vales on the service couplings.
With the engine off:
• check that the quick couplings are properly connected;
• check that the hoses cannot interfere with moving parts and are not in contact
with hot or live parts or fluid systems;
• check that no persons, animals or foreign objects are close to or inside the
engine compartment;
• make sure no gears are engaged.
Start the engine and set the A/C system as follows:
• Start up A/C system (refrigerant compressor ON).
• Set minimum temperature on selector.
• Set fan to next to maximum setting, close all nozzles except for the central one
and set air delivery to centre.
• Run the engine at around 2500 rpm.
• Check the pressure values after about 3 - 5 minutes and verify whether the
pressure gauge readings are in the coloured sectors or at the manufacturer's
recommended values.
Also check whether the temperature at the cabin air vents is lower than 8°C.
PRESSURE VALUES CHANGE CONSIDERABLY WHEN AMBIENT TEMPERATURE
CHANGES.
12.6 EMPTYING HOSES
To empty the recharge hoses completely perform the HOSES EMPTYING phase. Select
in the menu the HOSES EMPTYING function (for the touch screen use, see table chap.
5.10).
12.7 FLUSHING
The ClimFill
®
Maxi station allows to perform the cleaning function to clean system parts
of the vehicle A/C system from particles or other impurities.
Two types of flushing are available:
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