The Propóstico of the course is to show the main characteristics of the refrigeration plants with flammable fluids and the measures to be taken in the use of the same ones according to the legislation in force. The activity is directed to the FP teachers of public centers of the IMA professional family who teach in the training cycles of refrigeration plants And Air conditioning and maintenance Of Thermal and fluid installations. The teaching of the course is carried out by the Association of cold companies and its technologies (AEFYT) Madrid.