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1. Service information
1.1. Area verification
Before starting work on systems containing flammable refrigerants, safety checks
are necessary to ensure that the risk of ignition is minimised. Before repairing the
cooling system, the following precautions must be observed:
1.2. Work procedure
The work must be carried out in accordance with a controlled procedure to minimise
the risk of a flammable vapour or gas being present while the work is being carried
out.
1.3. General workspace
All maintenance personnel and others working in the area of the site should be
briefed on the nature of the work to be carried out. Work in enclosed spaces must
be avoided. The area around the workspace should be divided into sections. Ensure
that conditions within the workspace are safe by keeping flammable material under
control.
1.4. Refrigerant verification
The area should be checked with an appropriate refrigerant detector before and
during work to ensure that the technician is warned of potentially flammable
atmospheres. Ensure that the leak-detection equipment used is suitable for use with
flammable refrigerants, i.e., non-sparking, adequately sealed, or intrinsically safe.
1.5. Presence of fire extinguishers
If any high-temperature work is to be carried out on the refrigeration equipment or
any associated parts, suitable extinguishing equipment must be available. Always
have a dry-powder or CO2 fire extinguisher nearby the load area.
1.6. Absence of ignition sources
No person carrying out work related to a refrigeration system involving the exposure
of piping containing or having contained flammable refrigerant should use any
source of ignition in such a manner as to create a risk of fire or explosion. All possible
sources of ignition, including cigarette smoking, should be kept far enough away
from the installation, repair, pick-up, and disposal site, where flammable refrigerant
can be released into the surrounding space. Before work starts, the area around
the equipment must be thoroughly examined to ensure that no danger or risk of
ignition is present. "No Smoking" signs must be displayed.
110
EVVO CLIMA 9000/12000/18000/24000
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