NewAir NAC14KWHH2 Manuel De L'utilisateur page 20

• 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:
o
the charge size is in accordance with the room size within which the
refrigerant containing parts are installed;
o
the ventilation machinery and outlets are operating adequately and are
not obstructed;
o
if an indirect refrigerating circuit is being used, the secondary circuit
shall be checked for the presence of refrigerant;
o
marking to the equipment continues to be visible and legible. Markings
and signs that are illegible shall be corrected;
o
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.
• 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:
o
that capacitors are discharged: this shall be done in a safe manner to
avoid possibility of sparking;
o
that there no live electrical components and wiring are exposed while
charging, recovering or purging the system;
o
that there is continuity of earth bonding.
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.
www.newair.com
EN
20