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risk of fire or explosion due to ignition of
the refrigerant caused by electric heaters,
stoves, or other sources of ignition.
• The appliance must be stored in such a way
as to prevent mechanical failure.
• Individuals who operate or work on the
refrigerant circuit must have the appro-
priate certification issued by an accredited
organization that ensures competence in
handling refrigerants according to a specif-
ic evaluation recognized by associations in
the industry.
• Repairs must be performed based on the
recommendation from the manufacturing
company.
Maintenance and repairs that require the assis-
tance of other qualified personnel must be per-
formed under the supervision of an individual
specified in the use of flammable refrigerants.
Appliances shall be installed,operated and stored
in a room with a floor area larger than 4 m
2
. The
appliance shall be stored in a well-ventilated area
where the room size corresponds to the room area
as specified for operation.
INSTRUCTIONS FOR REPAIRING APPLIANCES CONTAINING R290 /
R32
1 GENERAL INSTRUCTIONS
This instruction manual is intended for use by individuals possessing adequate
backgrounds of electrical, electronic, refrigerant and mechanical experience.
1.1 Checks to the area
Prior to beginning work on systems containing flammable refrigerants, safety
checks are necessary to ensure that the risk of ignition is minimised. For repair to
the refrigerating system, the following precautions shall be complied with prior to
conducting work on the system.
1.2 Work procedure
Work shall be undertaken under a controlled procedure so as to minimise the risk of
a flammable gas or vapour being present while the work is being performed.
1.3 General work area
All maintenance staff and others working in the local area shall be instructed on the
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