Toshiba RAV-HM301SDTY-E Manual De Instrucciones página 11

OM_D0X7303301-01_EN_Print.book Page 10 Friday, May 19, 2023 6:48 PM
• 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 contain- ing 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;
- That capacitors are discharged to avoid possibility of sparking.
19-EN
- That there no live electrical components and wiring are exposed
while charging, recovering or purging the system.
- That there is continuity of earth bonding.
10. Repairs to sealed components
• 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.
• 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 damage to cables, excessive number of
connections, terminals not made to original specification, damage
to seals, incorrect fitting of glands, etc.
• Ensure that apparatus is mounted securely.
• Ensure that seals or sealing materials have not degraded to the
point 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.
11. Repair to intrinsically safe components
• Do not apply any permanent inductive or capacitance loads to the
circuit without ensuring that this will not exceed the permissible
voltage and current permitted for the equipment in use.
• Intrinsically safe components are the only types that can be worked
on while live in the presence of a flammable atmosphere.
– 10 – 20-EN