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one person should guard the exit. Make sure that the drained refrigerant does not return to the
building.
- Evacuate the refrigerant circuit.
- Purge the refrigerant circuit with nitrogen for 5 minutes.
- Evacuate again.
- Remove the parts to be replaced by cutting and not by flame.
- Purge the solder point with nitrogen during the soldering process.
- Perform a leak test before charging refrigerant.
• Reassemble the sealed enclosures with precision. If the gaskets are worn, replace them.
• Check the safety equipment before commissioning.
d) Decommissioning
• If safety is affected when the equipment is taken out of service, the refrigerant charge must be
drained before taking out of service.
• Provide sufficient ventilation at the location of the equipment.
• Be aware that equipment malfunction can be caused by loss of refrigerant and that refrigerant
leakage is possible.
• Discharge the capacitors so as not to cause sparks.
• Drain the refrigerant. If recovery is not required by national regulations, drain the refrigerant to
the outdoors. Make sure that the drained refrigerant does not present any danger. When in doubt,
one person should guard the exit. Make sure that the drained refrigerant does not return to the
building.
• Evacuate the refrigerant circuit.
• Purge the refrigerant circuit with nitrogen for 5 minutes.
• Evacuate again.
• Fill with nitrogen up to atmospheric pressure.
• Place a label on the equipment indicating that the refrigerant has been drained.
e) Disposal
• Ensure sufficient ventilation in the workplace.
• Drain the refrigerant. If recovery is not required by national regulations, drain the refrigerant to
the outdoors. Make sure that the drained refrigerant does not present any danger. When in doubt,
one person should guard the exit. Make sure that the drained refrigerant does not return to the
building.
• Evacuate the refrigerant circuit.
• Purge the refrigerant circuit with nitrogen for 5 minutes.
• Evacuate again.
• Cut off the compressor, then drain the oil.
iii) TRANSPORTATION, MARKING AND STORAGE OF APPLIANCES USING FLAMMABLE
REFRIGERANTS
✓ Transport of equipment containing flammable refrigerants
Your attention is drawn to the fact that additional transport regulations may exist regarding
equipment containing flammable gases. The maximum number of equipment or
configuration of equipment that can be transported together is determined by applicable
transport regulations.
✓ Marking of equipment with signs
Signs relating to similar devices used in a work area are generally governed by local
regulations and define the minimum safety and / or health signage requirements for a
workplace.
All required signs should be maintained and employers should ensure that employees
receive appropriate and sufficient instruction and training on the meaning of the appropriate
safety signs and the actions to be taken in relation to such signs. The effectiveness of signs
should not be diminished by too many signs placed together.
EN-14
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