Air Conditioning System: Precaution

WARNING: This page is about a different car, the 2006 Scion tC. However, it is still accessible from the selected car via links, so may be relevant.

DO NOT HANDLE REFRIGERANT IN AN ENCLOSED AREA OR NEAR AN OPEN FLAME
ALWAYS WEAR PROTECTIVE GLASSES

Fig 1: Precautions For Refrigerant In An Enclosed Area Or Near An Open Flame
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
AVOID SKIN OR EYE CONTACT WITH LIQUID REFRIGERANT
If liquid refrigerant comes in contact with your eyes or skin:
1. Rinse the area thoroughly with cold water.
  CAUTION: Do not rub your eyes or skin.
2. Apply clean petroleum jelly to the skin.
3. Go immediately to a hospital or see a physician for professional treatment.
Fig 2: Precautions For Avoid Skin Or Eye Contact With Liquid Refrigerant
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NEVER HEAT CONTAINER OR EXPOSE IT TO OPEN FLAME
DO NOT DROP OR STRIKE CONTAINER OF REFRIGERANT
DO NOT OPERATE COMPRESSOR WITHOUT ENOUGH REFRIGERANT IN REFRIGERANT SYSTEM
If there is not enough refrigerant in the refrigerant system, oil lubrication will be insufficient and the compressor may burn out. Care should be taken to avoid this.

Fig 3: Precautions For Do Not Operate Compressor Without Enough Refrigerant In Refrigerant System
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
DO NOT OPEN HIGH PRESSURE MANIFOLD VALVE WHILE COMPRESSOR IS OPERATING
Open and close only the low pressure valve. If the high pressure valve is opened, refrigerant flows in the reverse direction and causes the charging cylinder to rupture.
BE CAREFUL NOT TO OVERCHARGE SYSTEM WITH REFRIGERANT
Overcharged refrigerant will cause problems such as insufficient cooling, poor fuel economy, engine overheating, etc.
DO NOT OPERATE ENGINE AND COMPRESSOR WITHOUT REFRIGERANT IN REFRIGERANT SYSTEM

NOTE: This may damage the inside of the compressor because the compressor parts move regardless of whether the A/C system is turned on or off.