8703 Safety regulations when handling refrigerant R 134a · The refrigerant R 134a which is used is known 4. Refr

8703 Safety regulations when handling refrigerant R 134a The refrigerant R 134a which is used is known 4. Refrigerantbottles must not be thrown and as a safety refrigerant. This means'that this re- must not be subjected to direct sunlightor frigerant is non-flammable,non-explosive,non- other heat sources for an extended period toxic, non-irritating, odorless and tasteless. De- when full. The maximum permissible spite this, you should still follow the points below. temperature of a filled refrigerant bottle must not exceed 45 aG. 1. Avoid all contact with liquid or gaseous refri- gerants. Treat affected skin in the same way as in the case of freezing. Rinse immediately and then consult a physician.Wear safety goggles to protect your eyes. If refrigerant still gets in your eyes, consult a physician immediately. Wear rubber gloves to protect your hands. 2. When carrying out repairs on the air-condi- tioning system, the system must be emptied by suction and the refrigerant must be puri- fied. Chlorine-freerefrigerants must also not be allowed to escape into the atmosphere and must be disposed of correctly. Due to their chemical composition, different refrigerants must not be mixed with each other (not even in small quantities). 3. Never perform welding work on parts of the closed air-conditioningsystem or in its immedi- ate vicinity. Whether or not the system is filled with refrigerant, the heating causes a very strong overpressurewhich can cause damage to the system or even lead to an explosion. R 134a is completely non-toxic at normal temperatures, but it decomposesupon con- tact with a flame or at high temperatures. 87 03 Safety regulations when handling refrigerant R 134a 87-1 Printed in Germany, 1997 996871