This gas is heavier than air, non-flammable and non-explosive.
When handling R-134a refrigerant, the following precautions must be observed.
Caution: Always wear safety glasses when servicing the air conditioning system.
1. At normal temperature and atmospheric pressure, the evaporation rate of liquid refrigerant R-0134a is so high that it freezes any object that comes into contact with it. Therefore, special care must be taken when handling liquid refrigerant to prevent it from coming into contact with your skin and especially your eyes. Always wear safety glasses when servicing the air conditioner refrigeration system. Also, keep a bottle of clean, sterile mineral oil at hand. If liquid refrigerant comes into contact with your eyes, immediately rinse them with a few drops of mineral oil. Oil quickly absorbs refrigerant R-134a. Then rinse your eyes with plenty of cold water. Even if the irritation stops after these procedures, seek medical attention immediately.
Attention! Do not heat the refrigerant R-134a above +40°C.
2. When filling the system with refrigerant, in most cases it is necessary to moderately heat the refrigerant cylinder to create increased pressure in the cylinder compared to the pressure in the air conditioning system.
3. For this purpose, a bucket or tank filled with warm water with a temperature no higher than +40°C is usually used. It is prohibited to use a blowtorch, burner, etc. to heat the refrigerant cylinder, since in this case the pressure and temperature of the refrigerant may exceed the maximum permissible values. Do not weld or wash with hot steam parts located in the immediate vicinity of the components and hoses of the air conditioning system.
Attention! When filling the system, the cylinder with R-134a refrigerant must be in a vertical position.
Attention! If the refrigerant cylinder is lying down or turned with the valve down, the refrigerant in the liquid phase will enter the air conditioning system and damage the compressor.
Caution: To check for gas leaks in the air conditioning system, use a R-134a refrigerant leak detector.
Caution: Avoid contact of liquid refrigerant with polished metal surfaces.
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Attention! When liquid coolant gets on polished and chromed surfaces, they lose their shine and become dull, and in combination with moisture, they can lead to the appearance of corrosion spots on the entire surface of the metal.