Eberg ELIO E35T1 - R290 Appliance Working Procedures; Commissioning, Maintenance, Repair, and Decommissioning Steps

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• Information about the concept of sealed components and sealed enclosures according to IEC 60079-
15:2010.
• Information about the correct working procedures:
a) Commissioning
• Ensure that the oor area is sucient for the refrigerant charge or that the ventilation duct is
assembled in a correct manner.
• Connect the pipes and carry out a leak test before charging with refrigerant.
• Check safety equipment before putting into service.
b) Maintenance
• Portable equipment shall be repaired outside or in a workshop specially equipped for servicing units
with ammable refrigerants.
• Ensure sucient ventilation at the repair place.
• Be aware that malfunction of the equipment may be caused by refrigerant loss and a refrigerant leak
is possible.
• Discharge capacitors in a way that won’t cause any spark. The standard procedure to short circuit the
capacitor terminals usually creates sparks.
• Reassemble sealed enclosures accurately. If seals are worn, replace them.
• Check safety equipment before putting into service.
c) Repair
• Portable equipment shall be repaired outside or in a workshop specially equipped for servicing units
with ammable refrigerants.
• Ensure sucient ventilation at the repair place.
• Be aware that malfunction of the equipment may be caused by refrigerant loss and a refrigerant leak
is possible.
• Discharge capacitors in a way that won’t cause any spark.
• When brazing is required, the following procedures shall be carried out in the right order:
– 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 oat back into the building.
– Evacuate the refrigerant circuit.
– Purge the refrigerant circuit with nitrogen for 5 min.
– Evacuate again.
– Remove parts to be replaced by cutting, not by ame.
– Purge the braze point with nitrogen during the brazing procedure.
– Carry out a leak test before charging with refrigerant.
- Reassemble sealed enclosures accurately. If seals are worn, replace them.
- Check safety equipment before putting into service.
d) Decommissioning
• If the safety is aected when the equipment is putted out of service, the refrigerant charge shall be
removed before decommissioning.
• Ensure sucient ventilation at the equipment location.
• Be aware that malfunction of the equipment may be caused by refrigerant loss and a refrigerant leak
is possible.
• Discharge capacitors in a way that won’t cause any spark.
• 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 oat back into the building.
• Evacuate the refrigerant circuit.
• Purge the refrigerant circuit with nitrogen for 5 min.
• Evacuate again.
• Fill with nitrogen up to atmospheric pressure.