i.e. non-sparking, adequately sealed or intrinsically safe.
the leak detection equipment being used is suitable for use with all applicable refrigerants,
The area shall be checked with an appropriate refrigerant detector prior to and during work,
●Checking for presence of refrigerant
– that there is continuity of earth bonding.
purging the system;
– that no live electrical components and wiring are exposed while charging, recovering or
of sparking;
– that capacitors are discharged: this shall be done in a safe manner to avoid possibility
to ensure the technician is aware of potentially toxic or flammable atmospheres. Ensure that
●Initial safety checks shall include:
This shall be reported to the owner of the equipment so all parties are advised.
necessary to continue operation, an adequate temporary solution shall be used.
satisfactorily dealt with. If the fault cannot be corrected immediately but it is
safety, then no electrical supply shall be connected to the circuit until it is
and component inspection procedures. If a fault exists that could compromise
●Repair and maintenance to electrical components shall include initial safety checks
being corroded or are suitably protected against being so corroded.
unless the components are constructed of materials which are inherently resistant to
be exposed to any substance which may corrode refrigerant containing components,
– Refrigeration pipe or components are installed in a position where they are unlikely to
illegible shall be corrected;
– Marking to the equipment continues to be visible and legible. Markings and signs that are
the presence of refrigerant;
– If an indirect refrigerating circuit is being used, the secondary circuit shall be checked for
– The ventilation machinery and outlets are operating adequately and are not obstructed;
containing parts are installed;
– The charge size is in accordance with the room size within which the refrigerant
The Refrigerant
● The following checks shall be applied to installations using flammable refrigerants:
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