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Automatic A/C-Service Unit
13.
AUTO function
The AUTO function allows the operator to build a personalized program, by setting the values of the
functions. The functions are then performed automatically. The values introduced in the AUTO function
will be stored by the unit until next modification.
a)
Make sure that all the valves on the control panel are closed and that the 67 switch is on I
b)
Press the AUTO key: the led of the function will blink and the following screen will appear on
the display:
•
Recovery R134
•
VACUUM
•
OIL
•
UV
•
R134a
c)
Press the START key to start the AUTO function
d)
At the end of the function, the unit will print the report
e)
Should there be an alarm signal during the automatic function, the unit will stop at the relevant
function and indicate the alarm on the display
14.
Operations before disconnecting the unit from the A/C system
a)
With the A/C system compressor on, disconnect the 52 hose.
b)
Press the START key for more than 4 seconds in order to open the LOW and HIGH inlet solenoid
valves; the led of the STOP key will light and the following writing will appear on the display:
DISCONNECTING MODE - LOW AND HIGH VALVES OPEN
c)
As soon as the pressures on the high and low pressure gauges are the same and do not exceed
2÷3 bar, press the STOP key (the led will remain on, and also the led of the START key will light);
the following writing will appear on the display:
DISCONNECTING ENDED - LOW AND HIGH VALVES CLOSED
d)
Disconnect the 52 hose from the A/C system
e)
Perform a recovery cycle to extract the remaining refrigerant from the hoses, so that the unit is
immediately ready for the next operation.
f)
Turn the unit off (67 power switch on 0).
g)
Reposition both service hoses in their supports.
h)
Carefully screw the protection caps on the A/C system service valves.
i)
Carefully check the A/C system for leaks by means of a leak detector.
NB.
The introduction of tracer additives and the following use of a UV leak detector will make
it easier to locate the point of the possible leak in the future.
Letzte Änderung: 24.06.2009 / Art.Nr.: 2059ENG
programmable
programmable
programmable
programmable
programmable
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