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 the refrigerant containing
parts
are
installed;
th
e
ventilation
machinery
and
outlets
are
operating
adequately and are not obstructed; if an indirect refrigerating
circuit is being used, the secondary circuit shall be checked for
the presence of refrigerant; marking to the equipment
continues to be visible and legible.
markings
and
signs
that
are
illegible
shall
be
corrected;
refrigeration
pipe
or
components are
installed in a position where they are unlikely to be exposed to
any substance which may corrode refrigerant containing
components, unless
the components are constructed of
materials which are inherently resistant to being corroded or are
suitably protected against being so corroded.
Checks to electrical devices. R
epair
and
maintenance
to
electrical
components
shall
include
initial
safety
checks and component
inspection procedures. if a fault exists that could compromise
safety, then no electrical supply shall be connected to the circuit
until it is satisfactorily dealt with. if the fault cannot be corrected
immediately but it is necessary to continue operation, an
adequate temporary solution shall be used. T
his
shall
be
reported
to
the
owner
of
the
equipment
so
all
parties
are
advised.
i
nitial
safety
checks
shall
include:
that
capacitors
are
discharged:
this
shall be
done
in
a
safe
manner
to
avoid
possibility
of
sparking;
that
there
no
live
electrical components and wiring are exposed
while charging, recovering or
purging
the
system;
that
there
is
continuity
of
earth
bonding.
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