Mastro EXPORY Manual De Instalación E Instrucciones página 6

INSTALLATION
The refrigerated unit must be installed
in a suitable dry place and on a level
floor, to avoid an higher energy con-
sumption and a shorter compressor
life. It must be installed on a level floor
to prevent noise and bad working.
The refrigerated equipment should
never be installed:
a - near sources of heat such as radia-
tors, direct or indirect sunlight or other
equipment which produces heat (photo F);
b - in line with draughts coming from doors, windows or air conditioning systems
(photo F). Do not close or obstruct the ventilation openings of the refrigeration
unit, because this would stop the airflow which cools the refrigeration unit causing
a bad working.
OPERATION START
After the refrigerated equipment has been installed, the power supply voltage has
been checked and the plug has been connected, switch on the unit. When the unit
has reached the working temperature, put in the products already cooled. Do not
exceed the 2/3 of the available room with the product's level. Leave some room
between the displayed products in order to allow a good airflow and never obstruct
the air intake situated on the front side.
PERIODICAL MAINTENANCE
We suggest to carry out a tho-
rough cleaning of the cabinet once
a month for the good working,
the good preservation of the food
and the aesthetics preservation
of the equipment. The periodical
cleaning can be made by quali-
fied people, who should know
the procedures described in this
paragraph. ATTENTION! Before
starting any cleaning operation it
is necessary to turn off the equip-
ment by the on/off red switch and
to unplug or disconnect the equi-
pment by the general power security switch of your shop. During the whole cleaning
operation we suggest to use working gloves to protect your hand all the time.
To carry out the cleaning it is necessary:
1 - to remove all goods from the refrigerated unit and to keep them in a freedge or in a
refrigerated ambient suitable for their preservation;
2 - to unplug or disconnect the main on/off switch, disconnect the plug from the power
socket and wait until the equipment temperature reaches the room temperature;
3 - carefully and thoroughly clean the display surface, the shelves, the glasses with spe-
cific cleaners for any surface. Never use abrasive substances, metal pads or other stuff
which can damage the unit.
4 - after every cleaning operation it is necessary to rinse with warm water and dry the
unit with a soft cloth. In case the smaller evaporation tray is full, it will have to be emp-
tied and then put again in its original position.
5 - To clean the condenser unscrew the screws of the front panel for the cabinets in len-
gth 250 and 300 cm. For the other lengths unscrew the screws of the side panel. Use a
dry paint brush and/or a vacuum cleaner, removing all dust. Pay attention not to bend or
damage the fins, the tubes or the blades of the fans. Never neglect this operation, as it is
basic for the good working of the unit and to avoid possible breakings.
When the cleaning operation is over, make sure that everything is clean and dry before
connecting the equipment to the power supply again.When the unit reaches the correct
working temperature, it is possible to reload it. In case of long absences (i.e. holidays,
etc.) the unit has to be unplugged, emptied completely, cleaned and dried.
DEFROSTING
The defrosting takes place automatically during the running of the unit. The defro-
sting cycles are 4 a day, last for about 40' each and are controlled by a timer in the
electrical control panel. During the defrosting phase the temperature of the unit
could be altered, but when this cycle is over, in a short time the working tempera-
ture will return to normal. The water from defrost is collected in a tray equipped
with automatic evaporation and a smaller tray underneath, which has to be emptied
manually when the automatic evaporation is not enough, especially during the sum-
mer months.
F
G
MECHANICAL THERMOSTAT
A Differential adjusting screw
B Temperature adjusting screw
The installation, or the replacement and the adjustment of these
devices have to be made only by a qualified technician.
Before installing the thermostat check that the equipment is
disconnected from the electric power supply.
CAREFULLY AVOID THE CONTACT
WITH PARTS UNDER TENSION.
TEMPERATURE
The thermostat, which is situated on the
electrical control panel, regulates the tem-
perature into the equipment and is usually
preset to +0/+6C° at the factory during the
testing phase.A lower performance must be
expected from the refrigerated unit when:
- the equipment is set on the lowest tem-
perature
- the equipment is positioned in an ambient
with higher temperature or relative humidi-
ty than above indicated
- the amount of displayed products exceeds
the maximum recommended and the proper
air circulation is prevented.
In those cases the goods are kept at higher temperatures, the refrigerating unit has
to run non-stop and ice may form on the evaporator. It is necessary therefore to
turn the equipment off (approx 24 hours) to allow the melting of the ice.
TECHNICAL ASSISTENCE (servicing)
If the equipment does not run properly or does not work at all, in your own inte-
rest before calling for servicing, we suggest to check the following points:
- if the plug is well inserted in the socket;
- if the power reachs the socket to which the equipment is connected;
- if the thermostat is set as recommended;
- if the network voltage is the same as requested for the unit (+/- 6%).
DISMANTELLING OF EQUIPMENT
The demolition of the unit and the recovery of the component materials must be
carried out according to the regulation in force in this matter. Considering that the
equipment is formed by many different materials (i.e. ABS with polyurethane foam
for isolation, glass, stainless steel, aluminium, copper, etc.) and some of them are like
normal urban waste materials while other components, as refrigeration gas and oil,
MUST be given to a special recycling center.
REPLACEMENT OF LAMPS
Disconnect the main power supply before fitting or replacing the lamp. Slip the
ring nuts onto the fluorescent lamp. Fit the lamp in the lamphoder and turn it 90°.
Slide the ring nuts along the lamp until they rest on the lampholder and turn them
clockwise (NPP and NPQ); screw down tightly (NPW).
NIGHT -BLIND
In case that the wall-cabinet is equiped with a night-blind, we let you note that this
night-blind is self-blocking, there are no hooks to block it.The night-blind is equiped
with a spring and must always be pulled on, never left free, during the rolling phase.
The night-blind can be stopped in any position, according to one's wish.