Qlima PES 7125 Manuel D'utilisation page 85

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
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 nature of work being
carried out. Work in confined spaces shall be avoided. The area around the workspace shall be sectioned
off. Ensure that the conditions within the area have been made safe by control of flammable material.
1.4 Checking for presence of refrigerant
The area shall be checked with an appropriate refrigerant detector prior to and during work, to ensure
the technician is aware of potentially flammable atmospheres. Ensure that the leak detection equipment
being used is suitable for use with flammable refrigerants, i.e. nonsparking, adequately sealed or
intrinsically safe.
1.5 Presence of fire extinguisher
lf any hotwork is to be conducted on the refrigeration equipment or any associated parts, appropriate fire
extinguishing equipment shall be available to hand. Have a dry powder or CO 2 fire extinguisher adjacent
to the charging area.
1.6 No ignition sources
No person carrying out work in relation to a refrigeration system which involves exposing any pipe work
that contains or has contained flammable refrigerant shall use any sources of ignition in such a manner
2
. The
GB
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