e) Disposal
• Ensure suffi cient ventilation at the working place.
• Remove the refrigerant. If the recovery is not required by national regulations, drain the refrigerant to
the outside. Take care that the drained refrigerant will not cause any danger. In doubt, one person
should guard the outlet. Take special care that drained refrigerant will not fl oat back into the building.
• Evacuate the refrigerant circuit.
• Purge the refrigerant circuit with nitrogen for 5 min.
• Evacuate again.
• Cut out the compressor and drain the oil.
Transportation, marking and storage for units that employ fl ammable refrigerants
Transport of equipment containing fl ammable refrigerants
Attention is drawn to the fact that additional transportation regulations may exist with respect to
equipment containing fl ammable gas. The maximum number of pieces of equipment or the confi guration
of the equipment, permitted to be transported together will be determined by the applicable transport
regulations.
Marking of equipment using signs
Signs for similar appliances used in a work area generally are addressed by local regulations and give
the minimum requirements for the provision of safety and/or health signs for a work location.
All required signs are to be maintained and employers should ensure that employees receive suitable
and suffi cient instruction and training on the meaning of appropriate safety signs and the actions that
need to be taken in connection with these signs.
The effectiveness of signs should not be diminished by too many signs being placed together.
Any pictograms used should be as simple as possible and contain only essential details.
Disposal of equipment using fl ammable refrigerants
See national regulations.
Storage of equipment/appliances
The storage of equipment should be in accordance with the manufacturer's instructions.
Storage of packed (unsold) equipment Storage package protection should be constructed such that
mechanical damage to the equipment inside the package will not cause a leak of the refrigerant charge.
The maximum number of pieces of equipment permitted to be stored together will be determined by
local regulations.
84