- Servicing shall only be performed as recommended by the
equipment manufacturer .Maintenance and repair requiring the
assistance of other skilled personnel shall be carried out under
the supervision of the person competent in the use of flammable
refrigerants.
- Do not operate or stop the unit by inserting or pulling out Die power
plug, it may cause electric shock or fire due to heat generation.
- Unplug the unit if strange sounds, smell, or smoke comes from it.
InsTrUcTIOns fOr rePaIrInG aPPlIances cOnTaInInG
r290
1 General InsTrUcTIOns
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 con-ducting 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 tection equipment being used is suitable
for use with flammable refrigerants, i.e. nonsparking, adequately sealed or
intrinsically safe.
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 extinguisher adjacent to the charging
area.
1.6 no ignition sources
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