Instruction Booklet
21ENGLISH
KHEOS
EN
5.9 Refrigerant topping-up
If there is refrigerant in the A/C system, the only way to fill the system with more gas is to perform a TOP-UP operation. To perform
this phase, connect the unit to the A/C system, start the vehicle’s engine and wait a few minutes for the A/C system to reach full
power.
- Connect the low pressure pipe.
- Start the engine and the A/C system
- Partially open the low pressure valve (LP)
- Select the “FILLING” operation and press OK to start the cycle.
- Select “GAS” , set the desired quantity and then press OK.
- Select “START CYCLE” and press OK.
- When charging has been completed, close the LP valve, stop the A/C system and the engine.
This phase must be performed with the engine on. The other phases strictly with the engine off.
5.10 “RECHARGE CYLINDER” operation
This function is used to fill the internal cylinder with refrigerant. Filling is set to 7 kg on a total of 10 to ensure there is always a
good charge level and sufficient volume to perform the recovery operations.
Use the red high pressure HP pipe; connect the pipe to an external cylinder containing refrigerant. If the external cylinder is
not equipped with an internal plunger, it must be turned upside down so that the gas can always flow out in the
liquid state.
- Open the cylinder and HP valve.
- Select “ Recharge cylinder” using the “+” and “-” buttons. Press OK to start the cycle.
-
The display shows “Estimated charge:” quantity of refrigerant (in grams) required to completely fill the cylinder with 200g
approximation. You can also change the maximum filling value as desired using the “Customisation” function in the SERVICE men,
or reduce the estimated value with the “-
↓
” button
.
- 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 taken. 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.
- During operation, press ESC for 2 sec. to return to the main menu.
- In case of emergency press the red push button in the panel to switch off the unit completely; in this case the function that
was in progress will not be saved.
- Once the cycle has been completed, press ESC for 2 sec. to exit.
- This cycle does not increment the filter counter.
-
If an error occurs, the display will show the associated message and give an acoustic signal. To exit, press ESC.
This operation increments the “GASRB“ counter in the “SERVICE“ menu
.
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