Important Safety Information
READ AND FOLLOW ALL SAFETY INSTRUCTIONS
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:
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The actual refrigerant charge size is in accordance with the room size within which the
refrigerant containing parts are installed.
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The ventilation machinery and outlets are operating adequately and are not obstructed.
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If an indirect refrigerating circuit is being used, the secondary circuit shall be checked for the
presence of refrigerant.
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Markings on the equipment continues to be visible and legible. Markings and signs that
become illegible must be corrected.
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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 suitable 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:
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That capacitors are discharged. This shall be done in a safe manner to avoid possibility of
sparking.
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That no live electrical components and wiring are exposed while charging, recovering or
purging the system.
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That there is continuity of earth bonding.
7. Repairs to sealed components
1) During repairs to sealed components, all electrical supplies shall be disconnected from the
equipment being worked upon prior to any removal of sealed covers, etc. If it is absolutely necessary
to have an electrical supply to equipment during servicing then a permanently operating form of leak
detection shall be located at the most critical point to warn of a potentially hazardous situation.
2) Particular attention shall be paid to the following to ensure that by working on electrical
components, the casing is not altered in such a way that the level of protection is affected. This shall
include:
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Damage to cables, excessive number of connections, terminals not made to original
specification, damage to seals, incorrect fitting of glands, etc.
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Ensure the apparatus is mounted securely.
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Ensure that seals or sealing materials have not degraded such that they no longer serve the
purpose of preventing the ingress of flammable atmospheres. Replacement parts shall be in
accordance with the manufacturer's specifications.
Note: The use of silicon sealant may inhibit the effectiveness of some types of leak detection
equipment. Intrinsically safe components do not have to be isolated prior to working on them.
SAVE THESE INSTRUCTIONS!