4DGBFE96032-04.2013-DGbF1| Safety1.2 Qualifications required of personnel1.3 General safety instructionsWARNING! Inadequately qualified personnel poses the risk of accidents, theconsequence being serious or fatal injury. Work on compressorsmust therefore only be performed by personnel with the qualifica-tions listed below:• For example, a refrigeration technician, refrigeration mechatron-ics engineer. As well as professions with comparable training, whichenable personnel to assemble, install, maintain and repair refrigerationand air-conditioning systems. Personnel must be capable of assessingthework to be carried out and recognising any potential dangers.WARNING! • Refrigerating compressors are pressurised machines andtherefore require particular caution and care in handling.• Risk of burns! Depending on the operating conditions, surfacetemperatures of over 60 °C on the pressure side or below 0 °C onthe suction side can be reached.• The maximum permissible overpressure must not be exceeded,even for testing purposes.1.1 Identification of safety instructions:DANGER! Indicates a dangerous situation which, if notavoided, will cause immediate fatal or serious injury.WARNING!Indicates a dangerous situation which, if notavoided, may cause fatal or serious injury.CAUTION!Indicates a dangerous situation which, if notavoided, may cause fairly severe or minor injury.ATTENTION! Indicates a situation which, if notavoided, may cause property damage.INFO! Important information or tips on simplifying work.WARNING! DANGER OF SUFFOCATION!Never release significant volumes of CO2 or the entire contents ofthe system into closed rooms!