Beko BP109C User Manual page 25

1 Safety awareness
c) Repair
• Portable equipment shall be repaired outside or in a workshop
specially equipped for servicing units with flammable refrigerants.
• Ensure sufficient 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 float 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 flame.
- 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.
Portable Air-conditioner / User Manual
25 / 220 EN