Dismounted components from systems with A3 or A2L refrigerants

After dismounting, refrigerant still outgasses from system components and can burn off or form an ignitable mixture with the ambient air. Take this into account when assessing the risk of intervention in the system and have appropriate equipment ready. This can mean, for example:

  1. Extract the medium from the line filter and flush it with pure nitrogen.
  2. Remove all oil from the pipes and flush them with pure nitrogen.
  3. Dispose of cloths containing oil in fireproof containers.
  4. Evacuate system components that can be shut off, charge them with pure nitrogen and then shut them off. This also applies to a dismounted compressor.
  5. Always mark dismounted components with the warning sign "flammable material" W021 from ISO7010.