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Safety precautions /
Precautions
for
using
R32 refrigerant
For
the
multi
system,
the
refrigerant
refer
to
the
multi
outdoor
unit.
The
basic
installation
work
procedures
are
the
same
as
the
conventional
refrigerant
(R22
or
R410A).
However,
pay
attention
to
the
following
points:
~
CAUTION
1.
Transport
of
equipment
containing
flammable
refrigerants
Compliance with the transport regulations
2.
Marking
of
equipment
using
signs
Compliance with local regulations
3.
Disposal
of
equipment
using
flammable
refrigerants
Compliance with 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
6-1
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 conducting
work
on
the system.
6-2
Work
procedure
Work shall be undertaken under a controlled procedure so as to minimise the
risk
of
flammable gas
or
vapour being present while the work is being
performed.
6-3
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
offlammable
material.
6-4
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. non-sparking, adequately sealed or intrinsically
safe.
-5-
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