Safety Warning
Always wear eye protection and gloves while handling refrigerant or servicing air conditioning systems.
Avoid breathing R-134a and lubricant vapor or mist. Exposure may irritate eyes, nose, throat, and lungs. Use only approved service equipment to discharge A/C systems. If accidental system discharge occurs, ventilate work area before resuming service.
If refrigerant or compressor oil contacts the skin or eyes, large quantities of cool water should be used to flush the affected area.
Never heat a refrigerant container with an open flame. Keep all refrigerants away from open flames, since burning refrigerant can produce poisonous gas.
Under no circumstances should R-134a service equipment or vehicle A/C systems be pressure tested with air/R- 134a mixtures. Some mixtures of air and R-134a have been shown to be combustible at elevated pressures.
The use of compressed air (shop air) for leak detection in R-134a systems could result in fire or explosion causing injury or property damage. In addition, introducing compressed air into A/C systems or components contaminates the system and/or refrigerant with moisture.
Obtain and use the correct type of refrigerant recovery/recycling machine. Follow the directions included in the machine's instruction manual.