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safely disperse any released refrigerant and preferably expel it externally into the
atmosphere.
8 Checks to the refrigeration equipment
Where electrical components are being changed, they shall be fit for the purpose
and to the correct specification. At all times the 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;
– The 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.
9 Checks to electrical devices
Repair 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.
This shall be reported to the owner of the equipment so all parties are advised.
Initial safety checks shall include:
1.
those capacitors are discharged: this shall be done in a safe manner to avoid
possibility of sparking.
2.
that there no live electrical components and wiring are exposed while
charging, recovering or purging the system.
3.
that there is continuity of earth bonding
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