ENGLISH 57 / 73 CAP. 13 - MAINTENANCE
T
o access the COUNTERS menu, from the main menu enter the MAINTENANCE menu and press
COUNTERS. (For the touchscreen use, see chap. 5.8)
COUNTERS display the following information:
• Pump activation
• Compressor activation
• Pump oil remaining time
• Filter residual capacity
13.6 VESSEL FILLING (A/C SERVICE STATION TANK)
STRICTLY COMPLY WITH INSTRUCTIONS BELOW TO AVOID REFRIGERANT
DISCHARGE INTO THE ATMOSPHERE
ALWAYS FOLLOW THE INSTRUCTIONS ON THE REFRIGERANT
MANUFACTURER'S SAFETY SHEET IN FULL
Connect the supplied HP quick coupler (red) in case of R134a of the unit to an external
refrigerant gas tank using the supplied adaptor.
Open the coupler by turning the knob clockwise. Open the valve on the external tank.
There are two types of source tanks: with plunger and without plunger.
Tanks with plunger shall remain upright to be able to transfer liquid refrigerant; for this type of
tanks connect to the L (liquid) coupler.
Tanks without plunger have only one valve, so they must be turned upside down to transfer the
liquid refrigerant.
The HP gauge indicates the pressure inside the external tank.
From the main menu select MAINTENANCE and press “VESSEL FILLING”.
In the following screen page set the quantity of refrigerant you wish to charge.
The field RESIDUAL shows the quantity of refrigerant being currently present in the vessel.
Position the cursor into the field TO CHARGE that will suggest, by default, the maximum quantity
of refrigerant to charge.
Press START to begin the refrigerant filling phase.
Please note that when the system warns that the maximum selected weight has been reached,
after the closing of the external bottle valve, the unit still absorbs a small amount of refrigerant.
In case of problems during the internal vessel filling phase, a specific message will appear on the
last line of the display.
It is possible to interrupt the phase in progress at any time, by pushing the icon
After some minutes the unit will automatically end the function.
At the end the weight of the charged refrigerant will be displayed.