This gas is heavier than air, non-flammable and non-explosive.
When handling R-134a refrigerant, the following precautions must be observed.
Attention! Always wear safety goggles when servicing the air conditioning system.
1. At normal temperature and atmospheric pressure, the evaporation rate of R-0134a liquid refrigerant is so high that any object in contact with it is frozen. Therefore, special care must be taken when handling liquid refrigerant to avoid contact with the skin and, in particular, with the eyes. Always wear safety goggles when servicing the air conditioner cooling system. Also keep a bottle of clean, sterile mineral oil handy. If liquid refrigerant gets into your eyes, rinse immediately with a few drops of mineral oil. The oil quickly absorbs the R-134a refrigerant. Then rinse your eyes with plenty of cold water. Even if after these procedures the irritation has stopped, seek medical help immediately.
Attention! Do not heat R-134a refrigerant above +40°C.
2. When charging the system with refrigerant, in most cases, moderate heating of the refrigerant cylinder is required to create an increased pressure in the cylinder compared to the pressure in the air conditioning system.
3. For this purpose, a bucket or tank is usually used, filled with warm water with a temperature not exceeding +40°C. Do not use a blowtorch, torch, etc. to heat the refrigerant cylinder, as in this case the pressure and temperature of the refrigerant may exceed the maximum permissible values. Do not carry out welding or hot steam cleaning of parts located in the immediate vicinity of the components and hoses of the air conditioning system.
Attention! When charging the system, the R-134a refrigerant cylinder must be in an upright 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.
Attention! An R-134a refrigerant leak detector should be used to check for gas leaks in the air conditioning system.
Attention! Do not allow liquid refrigerant to come into contact with polished metal surfaces.
Attention! When liquid refrigerant gets on polished and chrome-plated surfaces, they lose their luster and tarnish, and in combination with moisture, they can lead to the appearance of corrosion centers on the entire metal surface.