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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 fan 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;
•
Markings on 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 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:
•
That capacitors are discharged: this shall be done in a safe manner
to avoid the possibility of sparking;
•
That there are no live electrical components and wiring exposed
while charging, recovering or purging the system;
•
That there is continuity of earth bonding.
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