GALILEI LIBRA 70, Оригинальное руководство пользователя

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8 Cod. 80000080c – 17.07.2018
Cleaning of the external parts: a frequent cleaning routine helps to keep the cabinets presentable, to
preserve it for a long-term use and to convey a sense of cleanliness and hygiene to the customers. It is
therefore recommended to clean frequently the external parts of the cabinets, such as glass
superstructure, backshelves, cladding panels, aluminium profiles, etc.
Maintenance
Any Maintenance task, as well as any access to technical parts, are strictly reserved to qualified and
authorized service personnel (refrigeration technicians, electricians, etc.). In case, switch-off the cabinet
and disconnect it from the main power supply by operating the sectionalizing switch upstream of the
corresponding power line.
(open position in “0”, OFF or green condition). It is recommended to apply a
lockout-tagout procedure (isolation, lock and tag of all energy sources). The Lock and tag of the isolation
points lets others know not to de-isolate the cabinet during the maintenance operation
. In case of plug-in
cabinets equipped with chord plug, switch off the unit and disconnect the plug from the electrical outlet.
For cabinets working with flammable refrigerant R290 (Propane) see specific safety warnings provided at
the beginning of this manual.
At regular intervals, and at least once a year, the cabinet and its structural and electric components
should be carefully checked by maintenance personnel, (condensing unit if present, controllers and control
panels, thermometers, defrost heaters, fan motors, solenoid valves, etc. ). Check for possible coolant leaks,
as well as water leaks from coupling points (in case of multiplexed cabinets), from the drainage piping and
water taps placed under the carcass. Make sure that the state of maintenance of the electric system
guarantee a correct and safe use.
Cabinets with lift-up front glasses: during loading and unloading of the cabinets, as well as cleaning
and maintenance operations, front glasses must be lifted until they reach the maximum opening position
and kept in this position only for the time strictly necessary to carry out the required operation. In normal
conditions of use frontglasses must remain closed (in lowered position). Gas springs (“pistons”), with which
every glass module is equipped, are an aid for the lifting and a safety measure to prevent the glass to fall
down accidentally. The efficiency and the correct fixing of the gas springs to their supporting structure must
be checked on monthly basis. If the opening of the front glass requires an effort higher than usual, that
means that one or both gas springs are losing their efficiency. In this case have both of them be replaced by
qualified personnel.
Cabinets with built-in condensing unit: in normal conditions of use, the condenser should be cleaned
at least once a month, by using a brush with soft bristles and a vacuum cleaner. A condenser clogged with
dirt causes a higher electric consumption, and an overload of the compressor which may drastically shorten
its service life. The aluminium fins of the condenser represent a risk of injuries to hands and arms, the use
of protective gloves is therefore recommended.
Cabinets equipped with lighting system and fluorescent lamps: before to replace any burn-out lamp,
switch-off the cabinet and disconnect it from the main power supply by operating the sectionalizing switch
upstream of the corresponding power line (open position in “0”, OFF or green condition). In case of plug-in
cabinets, switch off the unit and disconnect the plug from the electrical outlet. Wear protective gloves.
Take the lamp at the two ends and turn it 90° until a slight click is heard, then remove it being careful not to
knock it against anything. Remove the transparent plastic protection from the lamp (“sleeve”) and keep it
for the new lamp. Apply the protection to the new lamp and fit the assembly following the above
procedure in the reverse order.