Aveo L4-1.6L (2008)
3. Attach the low-side hose with the quick disconnect coupler to the low-side fitting of the vehicle's A/C system.
4. Open the coupler valve after attachment.
5. Check the high-side and the low-side gages on the unit's control panel in order to ensure that the A/C system has pressure. If there is no pressure,
there is no refrigerant in the system to recover.
Important: If there is no refrigerant in the system, do not continue with the recovery operation. This will draw air into the recovery tank.
6. Open both the high-side and the low-side valves.
7. Open the gas and the liquid valves on the tank.
8. Drain any oil that may be in the oil separator.
9. Close the oil drain valve.
10. Plug the unit into the proper voltage outlet.
11. Turn ON the main power switch.
Notice: Never reuse refrigerant oil. Damage to the A/C system may result. Dispose of the refrigerant oil properly.
12. Begin the recovery process. Refer to the manufacturer's instructions for the charging station in use.
Important: Some A/C system PAG lubricating oil may be removed with the refrigerant during recovery. The amount of oil removed
varies. A charging station separates the oil from the refrigerant and allows a means of determining how much oil was removed. Replace
the same amount of oil when you recharge the system. Refer to the manufacturer's instructions for the charging station in use.
13. Wait 5 minutes. Check the control panel low-side gage. If the A/C has maintained vacuum, the recovery is complete.
Important: If the control indicator shows that the refrigerant tank is full during the recovery process and the unit shuts OFF, install an
empty unit tank to store the refrigerant needed for steps later in the procedure. Do not use any other type of tank.
14. There is more refrigerant in the system if the low side gage pressure rises above zero. Recover the additional refrigerant. Repeat this step until the
system maintains vacuum for 2 minutes.
Evacuation
The unit tank must contain a sufficient amount of R-134a refrigerant for charging. Check the amount of refrigerant in the tank. If there is less than 3.6 kg
(8 lbs) of refrigerant, add new refrigerant to the tank. Refer to the manufacturer's instructions for adding refrigerant.
1. Verify that the high side and the low side hoses are connected to the A/C system. Open both the high side and the low side valves on the unit's
control panel.
2. Open both the gas and the liquid valves on the tank.
Important: Refer to the manufacturer's instructions for the charging station in use. It is necessary to evacuate the system before
recharging it with new or recycled refrigerant.
3. Start the vacuum pump and begin the evacuation process. Non-condensable gases, mostly air, are automatically vented from the tank during the
recycling process. You may hear the pressure being released.
Important: Change the vacuum pump oil frequently. Refer to the manufacturer's instructions for the charging station in use.
4. Check for leaks in the system. Refer to the manufacturer's instructions for the charging station in use.
A/C System Oil Charge Replenishing
Any oil removed from the A/C system during the recovery process must be replenished at this time.
1. Use the correct graduated bottle of PAG oil for the R-134a system.
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Keep the oil bottles tightly capped at all times to protect the oil from moisture and contamination.
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Never open the oil injection valve while there is positive pressure in the A/C system. This will result in oil blow-back through the bottle vent.
You must have A/C system vacuum for this operation.
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Never let the oil level drop below the pick-up tube while charging or replenishing the system. This will allow air into the A/C system.
2. Refer to the manufacturer's instructions for the charging station in use. Add the proper amount of PAG oil to the system.
3. Close the valve when the required oil charge has been pulled into the system.
Charging
Important: Evacuate the air conditioning system before charging.
