10
Fig. 10 Dosatore olio fresco Fig. 11 Olio sintetico art. 21CR (optionale)
6.0 RECHARGE OF GAS
(Charge internal bottle)
The amount of freon, which is present in the internal bottle, has been inserted for the performance of the check and
controll of the station and is sufficient for performing a complete charging; Therefore it is advisable at switch-on to
charge the necessary gas with the use of an external bottle.
At switch-on appears the amount of freon on the display, which is available within the inner bottle; by pressing the
arrow keys + or – the continuous menu will be shown, it will be displayed in subsequent order (by constantly pressing
the key +) 1.MANUAL 2. HALF AUTOMATIC; 3. AUTOMATIC; 4. DATA BASE; 5. UTILITY; go back to the
amounts of gas, which are present in the bottle;
- Choose the program “
UTILITY’’ and confirm with “ENTER”;
- Choose “
Gas Recharge” with the keys “+ and –“ and confirm with “ENTER”;
- The display shows the message “
CHARGE” and a certain amount of gas;
- Program the amount of gas which is requested to perform the recharge with the arrow keys “+ and –“ ;
- Confirm with key “ENTER”;
- Like that start the performance of the recharge, the display will show the gas, which is recovered and
additionally the amount of the total gas which is being recovered until the end of the operation;
Attention!!! At the end of the recovery the display shows the message “Attention 9” close the cock of the bottle
and press the key “ENTER”, like that the remaining gas within the external tubes is recovered.
- If the external bottle is empty the display will show the message “Attention 8 external bottle empty”. The same
message appears, if the bottle empties during the recovery phase.
The device is equipped with a security device, which controls the amount of gas, which is available within the internal
bottle; if it for the performance of the recovery with the refilled bottle the border of the alarm (1,5 kg) on the display
then appears the message of the full bottle in addition to the message ERR 4. In this case you can only perform the steps
of the vacuum and charging until the amount of gas within the bottle has fallen again under 15 kg.
If the amount of gas available within the internal bottle is insufficient after the programming, the display will show
ERR1 as well as the message of the insufficient gas in the bottle, in this case it is necessary to carry-on as mentioned
under “recharge gas;
The internal bottle is supplied with a mechanic security valve, which opens automatically, when the pressure rises over
16 bar. A second, better reachable valve is positioned at the side of the small oil discharge bottle.
6.1 PRESSURE TEST OF PLANT A/C
- The two high- and low pressure cocks need to be closed.
- Press the key “C” on the keyboard.
- Start the vehicle in gear of 1500 r.p.m.
- Switch-on the A/C device.
- Control the pressure on the gauges “A” and “B” according to the following list:
T. surrounding LOW PRESSURE HIGH PRESSURE
°C 15 0,5 – 2,0 7,5 - 13
°C 20 0,5 – 2,5 10 - 16
°C 25 0,5 – 2,5 12 - 18
°C 30 0,5 - 3 12 - 20
CHAP. 6 USE OF THE CENTRAL UNIT
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