Air Conditioning

Air Conditioning

No parts of the charged air conditioner system may be welded, brazed or soldered. This also applies to any part of the vehicle if there is a risk that the parts of the air conditioner system could heat up. After paint repairs, the vehicle must not be heated up to more than 176 °F (80 °C) in the drying booth or preliminary heating zone, because heat causes a pressure increase which can burst the system..

• The system must be evacuated when it is necessary to weld electrically near the refrigerant hoses. During the electrical welding process invisible ultraviolet rays are given off which penetrate the refrigerant hoses and decompose the refrigerant.

Solution

Evacuate air conditioning system: => Refrigerant R134a
- Servicing 87 Refrigerant Circuit Only extract system if it is required by the safety precautions.

If it is necessary to evacuate the refrigerant when carrying out repairs to a vehicle, avoid all contact with liquid refrigerant or refrigerant vapor!

Wear rubber gloves to protect the hands and goggles to protect the eyes! If the refrigerant comes into contact with unprotected parts of the body it will cause frostbite..

CAUTION!
It is advisable to have a rinsing bottle for the eyes handy at all times. If liquid refrigerant gets into the eyes, they should be rinsed thoroughly with water for about 15 minutes.

Then use eye drops and obtain medical attention immediately even if no pain is felt in the eyes. The doctor should be informed that the cause of the frostbite was R12 or R134a refrigerant.

If the refrigerant comes into contact with other parts of the body despite compliance with safety measures, the part of the body concerned must be rinsed immediately with cold water for at least 15 minutes.=> Refrigerant R134a - Servicing 87 Refrigerant Circuit

Although refrigerant does not present a fire hazard, smoking is not permitted in rooms containing refrigerant vapors. The high temperature of a burning cigarette causes a chemical breakdown of the refrigerant vapor. The products of this breakdown are poisonous and cause violent coughing and sickness when inhaled.