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6.3 HALF AUTOMATIC
With the program “half automatic”, it is automatically possible to perform the following phases: - Recovery –
Oil discharge – Vacuum – vacuum test;
Choose from the main menu “
half automatic” and confirm with “ENTER”;
- The display shows: “vacuum time”;
- Program with the arrow keys “+”and “-” the vacuum time, it is possible to program a time between 1
and 180 minutes
- Confirm the programmed time with the key “ENTER”;
- The display shows “Vacuum test”;
- Program the duration of the vacuum test with the arrow keys “+” and “-„; it is possible to program the
duration of the test between 0-30 minutes; insertion of „0“, the leak test will not be performed;
- Confirm the choice with key “ENTER”;
The station carries-out automatically the following Steps:
First recovery – 2 minutes pause – second recovery – oil discharge – vacuum – leak test (if programmed); if
leaks have come up, the display will show the message „oil injection“;
- Program the amount of oil with the arrow keys “+ and –“ (if you insert “0” of oil, the oil charge will
not be executed);
- Confirm the choice with key “ENTER”;
- Program the amount of gas to charge with the arrow keys “+ and –“, confirm the choice with the key
“ENTER”.
Please note: the charging with be performed simultaneously via high- and low pressure, if the pressure
within the internal bottle is increased (over 9 bar), it is advisable to perform the charging only via the
high pressure (also only partial), by closing the low pressure cocks..
Then perform the pressure tests (see par. 6.1), separate the connections of the A/C station and perform a
manual recovery by discharging of the pressure out of the tubes.
If leaks are present within the A/C plant (only if previous the leak test has been programmed), the display
shows the message “
ERR 2 – Vacuum density insufficient“; in this case possible leaks have to be traced with
the help of a leak search lamp or an electronic leak detector (accessories on request). Press „C“ to exit.
If during the programming of the charge the fault “
ERR1 – insufficient gas in the bottle” occurs, you need to
recover gas from an external bottle before continuing (see par. 6.0). The message ERR 1 will be shown during
the programming when the difference between the necessary and the really present freon in the bottle is less
than 1 kg. Press “C” to exit.
Attention: It is possible to print out the performed steps by pressing the key “enter” for 2 seconds (on the
display appears “printig”), or the key “
print” on the printer , always after having pressed the key “C”.
PLEASE NOTE THAT if during the oil discharge an increase of the pressure occurs (> 0,5 bar), the station
automatically continuous with the recovery phase.
PLEASE NOTE THAT if an increase of pressure occurs during the vacuum phase (> 0,5 bar), the station
switches off and the message
Error 5 appears on the display. In this case perform a recovery before continuing.
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