5.10 “RECHARGE CYLINDER” operation
This function is used to ll the internal cylinder with refrigerant. Filling is set to 7 kg on a total of 10 for Astra and 16 kg on a total
of 18 for Astra Plus, in order to always have a good charge range and sufcient volume to perform the recovery operations.
Use the red high pressure pipe HP; remove the quick-coupling at its end; connect the pipe to an external cylinder containing
refrigerant. If the external cylinder is not equipped with an internal plunger, it must be held upside down so that the
gas can always ow out in the liquid state.
- Open the cylinder and the HP valve.
- Select the option “Recharge cylinder” with the “+ ↑” and “- ↓ ” buttons. Press OK to start the cycle.
- The display shows the “Estimated charge:” in grams of the quantity of refrigerant required to completely fill the cylinder
with an approximation of 200g. You can also change the maximum filling value as desired in the “Customisation”
option in the SERVICE menu.
- Press OK to continue with this function. During this operation, the display shows the general parameters, and “GasR:” indicates
the gas recovered and the time it took The unit adapts its recovery capacity in relation to the pressure coming from the external
cylinder. Just before reaching the estimated value, operation is locked, the acoustic signal is activated and the message “Close
cylinder and press OK” appears on the display in order to arrive at the calculated value without pressure residues in the unit.
- Press the ESC button for 2 seconds during the operation to return to the main menu.
- In the event of an emergency, press the red mushroom button on the control panel to completely turn off the unit; in this
case, the function that was in progress will not be stored.
- When the cycle has been completed, press the ESC button for 2 sec. to exit
- During this cycle, the filter counter does not increment.
-
In the event of an error, the display shows the relative message and activates an acoustic signal. To exit press the ESC button.
This operation does not increment the filter counter.
6. “SERVICE” menu
6.1 Service menu for the operator
The basic settings allow the unit to start operating immediately, in all the operating phases.
- This menu contains all the functions necessary for optimal use and customisation of the unit
Select the SERVICE option from the main menu with the “+↑ ” and “- ↓ ” buttons and press OK”.
- “View parameters”. By accessing this option, all the current values of the unit sensors are displayed with the relative
symbols: G: Kg gas in cylinder; P: bar value of the pressure sensor positioned after the HP and LP valves; T: °C of the cylinder
temperature sensor; O: grams of fresh oil; UV: grams of tracer. Press ESC for 2 sec. to exit.
- “Replace lters”. Use this function when the cartridge lters need to be replaced (see routine maintenance).
- “Recovery counter”. This option shows the kg of refrigerant gas recovered. This is shown by the partial counter, that
automatically resets after changing the lters, and the total counter, that follows the life of the unit and cannot be reset.
- “Vacuum pump hours”. This option shows the hours of operation of the vacuum pump. This is shown by the partial
counter, that follows the oil changes, and the total counter, that follows the life of the unit and cannot be reset (see routine
maintenance).
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