[43]
EN
DEHUMIDIFIER
procedure so as to minimize the risk of a
flammable gas or vapor being present while
the work is being performed.
2. 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.
3. 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 refrigerant, i.e. non
sparking, adequately sealed or intrinsically safe.
4. Presence of fire extinguisher
• If any hot work 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 CO2 fire extinguisher
adjacent to the charging area.
5. No ignition sources
• No person carrying out work in relation to a refrigerant 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
