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1. Transport of equipment containing ammable refrigerants - see transport
regulations
2. Marking of equipment using signs - see local regulations
3. Disposal of equipment using ammable refrigerants - see national regulations.
4. Storage of equipment/appliances - The storage of equipment should be in
accordance with the manufacturer's instructions.
5. Storage of packed (unsold) equipment - storage package protection should be
constructed such that mechanical damage to the equipment inside the package
will not cause a leak of the refrigerant charge. The maximum number of pieces
of equipment permitted to be stored together will be determined by local
regulations.
6. Information on servicing
• Checks to the area
Prior to beginning work on systems containing ammable 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.
• Work procedure
Work shall be undertaken under a controlled procedure so as to minimise the risk
of a ammable gas or vapour being present while the work is being performed.
• General work area
All maintenance sta and others working in the local area shall be instructed on
the nature of work being carried out. Work in conned spaces shall be avoided.
The area around the workspace shall be sectioned o. Ensure that the conditions
within the area have been made safe by control of ammable material.
• 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 ammable
atmospheres. Ensure that the leak detection equipment being used is suitable
for use with ammable refrigerants, i.e.non-sparking, adequately sealed or
intrinsically safe.
• Presence of re extinguisher
If any hot work is to be conducted on the refrigeration equipment or any
associated parts, appropriate re extinguishing equipment shall be available to
hand. Have a dry powder or CO2 re extinguisher adjacent to the charging area.
• 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 ammable refrigerant
shall use any sources of ignition in such a manner that it may lead to the risk of
re or explosion. All possible ignition sources, including cigarette smoking, should
be kept suciently far away from the site of installation, repairing, removing and
disposal, during which ammable 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 ammable hazards or ignition risks.
No Smoking signs shall be displayed.
• 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.
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