Suzuki Aerio, Verona 2002-06

Charging the System

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CAUTION
Air conditioning refrigerant or lubricant vapor can irritate your eyes, nose, or throat. Be careful when connecting service equipment. Do not breathe refrigerant or vapor.

If accidental system discharge occurs, ventilate work area before resuming service. Additional health and safety information may be obtained from the refrigerant and lubricant manufacturers.

  1. Connect a R-134a refrigerant recover/recycling/charging station (A) to the high-pressure service port (B) and the low-pressure service port (C), following the equipment manufacturers instructions.
  2.  
  3. Add the same amount of new refrigerant oil to the system that was removed during recovery.
  4.  
  5. Charge the system with the specified amount of R-134a refrigerant. Do not overcharge the system; the compressor will be damaged.
  6.  


CAUTION
Always charge through low pressure side of A/C system at after the initial charging is performed from the high pressure side with the engine stopped.


CAUTION
Never charge to high pressure side of A/C system with engine running.


CAUTION
Do not charge while compressor is hot.


CAUTION
When installing tap valve to refrigerant container to make a hole, carefully follow directions given by manufacturer.


CAUTION
A pressure gauge should always be used before and during charging.


CAUTION
The refrigerant container should be emptied of refrigerant when discarding it.


CAUTION
The refrigerant container should not be heated up to 40 °C (104 °F) or over.


CAUTION
Refrigerant container should not be reversed in direction during charging. Reversing in direction causes liquid refrigerant to enter compressor, causing troubles, such as compression of liquid refrigerant and the like.


NOTE
The air conditioning system uses HFC-134a (R-134a).


NOTE
Described here is a method to charge the air conditioning system with refrigerant from the refrigerant service container.


NOTE
When charging refrigerant recovered by using the refrigerant and recycling equipment (when recycling refrigerant), follow the procedure described in the equipment manufacturer-s instruction manual.

Charge 17.65 + / - 1.05 oz. (500 + / - 30 g). The initial charge of the A/C system is performed from the high pressure side with the engine stopped. And next, this method must be followed by charging from the low pressure side with the engine running.

  1. Check to make sure that hoses are routed properly after evacuating the system.
  2.  
  3. Connect Low charging hose (1) and High charging hose (2) of the manifold gauge set (3) in position. Thus, open refrigerant container valve (4) to purge the charging line.
  4.  
  5. Open the high pressure side valve (5) and charge refrigerant to system.
  6.  
  7. After a while, open the low pressure side valve (6) and close the high pressure side valve (5).
    WARNING
    Make sure that high pressure side valve is closed securely.

  8.  
  9. Start engine and keep engine speed at 1500 r/min. Then, operate air conditioning at -DEF- or -DEF/FOOT- air flow mode.
  10.  
  11. Charge A/C system with refrigerant. At this time, refrigerant container (4) should be held upright.

    Click image to see an enlarged view

    Fig. Charging A/C system

  12.  
  13. Remove manifold gauge set as follows:
    WARNING
    High pressure side is naturally under high pressure. So, care must be taken to protect your eyes and skin.

    1. Close low pressure side valve of manifold gauge set. (The high pressure side valve is closed continuously during the process of charging.)
    2.  
    3. Close refrigerant container valve.
    4.  
    5. Stop engine.
    6.  
    7. Using shop rag, remove charging hoses from service valves. This operation must be performed rapidly.
    8.  
    9. Put caps on service valves.
    10.  

  14.  

 
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