CTR Logika - Refrigerant Topping up

EN
Logika - use and maintenance guide
13/16
page
- Acoustic sound of end operation and data printing.
- Wait for three minutes before starting the A/C system.
- After having carried out the charging procedure, maintain the high and low pressure
hose connections but close the two HP-LP valves, start the vehicle engine and wait a few
minutes until the A/C plant is fully running.
- In case of only one service point, close the HP or LP valve used and disconnect the hose
from the vehicle.
- In case of two service points, disconnect the high pressure (HP) hose from the vehicle
and open the two valves HP-LP on the control panel to allow the gas contained in the
hoses to be discharged through the low pressure terminal to the vehicle. Wait until HP
and LP fall to about 2 bar, then disconnect the remaining low-pressure hose (LP).
Switch off the engine.
E0 = Cylinder full. It is not possible to recover gas.
E1 = Excessive quantity of gas programmed for recovery.
E2 = Recovery time expired.
E3 = Pressure present in the system at the start or during the vacuum cycle.
E4 = Time to achieve vacuum expired.
E5 = Leaks found in vacuum control cycle.
E6 = Insufcient quantity of refrigerant for programmed charge.
E7 = Refrigerant/oil charge time expired.
E9 = Insufcient quantity of oil injection.
Possible error codes:
If refrigerant is already present in the A/C plant, the only way to inject gas is by TOPPING UP.
To carry out this phase, it is necessary, after having connected up the unit to the A/C plant,
to start the vehicle engine and wait a few minutes until the A/C plant is fully running.
- Connect the low-pressure hose (blue).
- Partly open the low pressure valve LP.
- Press the SEL key and select the CHARGING function on the control panel.
- Set the oil quantity at ZERO grams and press OK.
- Programme the desired quantity of gas by using the “+” or “-”.
- Press the OK key to start topping up.
This is the only phase to be carried out with the engine running.
12. Refrigerant topping up
How to empty the hoses of the unit:
The AUTOMATIC operation must be carried out with the engine switched off.