LG PA11WS Owner's Manual page 11

Ventilated area
• Ensure that the area is in the open or that it is adequately ventilated before breaking
into the system or conducting any hot work. A degree of ventilation shall continue
during the period that the work is carried out. The ventilation should safely disperse any
released refrigerant and preferably expel it externally into the atmosphere.
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 actual refrigerant charge 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.
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:
- Capacitors are discharged: this shall be done in a safe manner to avoid possibility of
sparking.
- No live electrical components and wiring are exposed while charging, recovering or
purging the system.
- Continuity of earth bonding.
SAFETY INSTRUCTIONS
EN
11