Instructions For Repairing Appliances Containing R290; General Instructions - Beko BP207C Bedienungsanleitung

2. Instructions for repairing appliances containing
R290

2.1 General instructions

2.1.1 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
minimized. For repair to the refrigerating system,
the following precautions shall be complied with
prior to conducting work on the system.
2.1.2 Work procedure
Work shall be undertaken under a controlled
procedure so as to minimize the risk of a
flammable gas or vapor being present while the
work is being performed.
2.1.3 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 avoid. 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.
2.1.4 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.
2.1.5 Presence of fire extinguisher
If any hot work is to be conducted on the
refrigeration equipment or any associated parts,
propriate fire extinguishing equipment shall be
available to hand. Have a dry powder or CO 2 fire
12 / EN
extinguisher adjacent to the charging area.
2.1.6 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 that it may lead to
the risk of fire or explosion. All possible ignition
sources, including cigarette smoking, should
be kept sufficiently far away from the site of
installation, repairing, removing and disposal,
during which flammable refrigerant can possibly
be released to the surrounding space. Prior to
work taking place, the area around the equipment
is to be surveyed to make sure that there are no
flammable hazards or ignition risks. "No Smoking"
signs shall be displayed.
2.1.7 Ventilated area
Ensure that the area is in the open or that it is
adequately ventilated before breaking into the
system or conducting any hot work. A degree
of ventilation shall continue during the period
that the work is carried out. The ventilation
should safely disperse any released refrigerant
and preferably expel it externally into the
atmosphere.
2.1.8 Checks to the refrigeration
equipment
Where electrical components are being changed,
they shall be fit for the purpose and to the correct
specification. At all times the manufacturer's
maintenance and service guidelines shall be
followed. If in doubt consult the manufacturer's
technical department for assistance. The
following checks shall be applied to installations
using flammable refrigerants: the charge size is
in accordance with the room size within which
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