Prerequisites Supplied By The Customer; Instructions On Requests For Intervention; Instructions For Spare Parts; Technical Data - TRAPEZA 7NU0408DG52 Manual Uso Y Mantenimiento

GB - 18
Installation, ordinary and extra-ordinary maintenance (for
example, cleaning and maintenance of the refrigerating system), must
be performed by specialised and authorised technical personnel with a
sound knowledge of the refrigeration and electrical systems.

1.4. PREREQUISITES SUPPLIED BY THE CUSTOMER

Provide a high sensitivity differential magnetothermic switch (30 mA).
Provide a wall socket of the type used in the country in which the ma-
chine is operated.
Verify that the surface on which the machine rests is level.
In the case of machines with water condenser or with equipment with
direct humidity control, provide connection to a water system.

1.5. INSTRUCTIONS ON REQUESTS FOR INTERVENTION

Often operating diffi culties are a result of ordinary causes which are al-
most always remediable inhouse, therefore, before requesting assistance
from a technician, perform the following simple verifi cations:
IF THE MACHINE STOPS OPERATING:
- Check that the plug is inserted correctly in the electrical socket.
IF THE CABINET TEMPERATURE IS INSUFFICIENT:
- Verify that this is not being infl uenced by a heat source;
- Verify that the doors close perfectly;
- Verify that the condenser fi lter is not blocked;
- Verify that the ventilation grills of the control panel are not obstructed;
- Verify that the items inside the cabinet are not obstructing ventilation.
IF THE MACHINE IS NOISY:
- Verify that there is no loose contact between the machine and another object;
- Verifty that the machine is perfectly level;
- Verify that the screws (at least those visible) are tightly closed;
If the defect persists after the above verifi cations, request technical as-
sistance, indicating:
- The nature of the defect;
- The code and serial number of the machine appearing on the specifi ca-
tions plate.

1.6. INSTRUCTIONS FOR SPARE PARTS

ORIGINAL SPARE PARTS are recommended.
The manufacturer does not accept any responsibility for the use of non-
original parts.

2. TECHNICAL DATA

The technical data plate is located outside on the side or at the rear, and
inside the motor compartment.

2.1. NOISE LEVEL

Leq at the noisiest point at 1 m in operating condition
Lpc at 1 m in operating conditions
TESTING ENVIRONMENT
Testing has been performed in a rectangular showroom with no sound
absorption.
Signifi cant obstacles were absent in the area surrounding the machine.
REFERENCE REGULATIONS
Noise testing was performed in compliance with Legislative Decree 277
and in accordance with methods described in ISO 230-5, in order to ob-
tain the data required by EEC Directive 89/392.
OPERATING CONDITIONS OF THE MACHINE
Testing was performed under the most severe condition which corre-
sponds to the start-up phase called "POOL DOWN".
2.2. MATERIALS AND FLUIDS USED
The materials used comply with Legislative Decree of 25 July 2005, No.
151 in enactment of Directives 2002/95/EC, 2002/96/EC and 2003/108/
EC, relating to the reduction in the use of hazardous substances in elec-
trical and electronic equipment, as well as to waste disposal

3. OPERATION

3.1. APPLICATIONS, PURPOSE, FORESEEN AND UN-
FORESEEN USE, AUTHORISED USE
Our refi gerators are agroindustrial machines (EC regulation No.
1935/2004), intended for foodstuffs.
The machines are designed with the appropriate equipment to guarantee
the health and safety of the user.
APPLICATION OF THE BLAST CHILLER-FREEZER:
The blast chiller-freezer is a machine which rapidly lowers the tempera-
ture of cooked or raw foods, in order to maintain unaltered the orga-
noleptic properties (chemical-physical and nutritional) of these foods.
BLAST CHILL TEMPERATURE CYCLE:
This cycle enables a rapid lowering of the temperature of the cooked food
(from +90 to +3°C in 90 minutes) to avoid it remaining within the critical
temperature range of +10°C to +65°C.
The cooked and blast chilled food can be stored in the refrigerator for
up to 5 days.
SHOCK FREEZE TEMPERATURE CYCLE:
Shock freezing (from +90°C to -18°C) prevents the formation of macro-
crystals of ice in the food, which would result in a loss of liquids and
vitamins.
This cycle is suitable for cooked and raw food and conserves these food-
stuffs for up to 2 months and 12 months respectively.
CONSERVATION CYCLE:
At the end of every blast chill or shock freeze cycle the machine pro-
vides for a conservation cycle during which the equipment functions as
a normal refrigerator and the duration of which is to the discretion of
the user.
FOODSTUFFS STORAGE
For the best performance, the following indications should be observed:
Conservation cycle:
- Do not introduce inside the machine hot foods or uncovered liquids;
- Wrap or protect foodstuffs, in particular if they contain aromas;
- Arrange the foodstuffs inside so as not to limit air circulation, avoiding
placing on the racks papers, cartons, boards, etc. which may obstruct the
passage of air;
- Avoid as far as possible opening the door frequently or for lengthy
periods of time.
Blast chill cycle / shock freeze
- Do not open the door once the cycle has commenced and until the cycle
has terminated;
< 70 dB (A)
- Avoid wrapping, protecting or closing containers with lids or insulating fi lms;
< 130 dB (C)
- Do not use trays or containers higher than 65mm;
- Do not stack foodstuffs;
- Use aluminium or stainless steel containers.
3.2. DANGEROUS AREAS, RISKS, HAZARDS AND UNA-
VOIDABLE RISKS
The refrigerator equipment has been designed and manufactured with
the appropriate devices to guarantee the health and safety of the user
and does not contain dangerous edges, sharp surfaces or protruding ele-
ments.
The stability of the machine is guaranteed even when the doors are open;
however, do not pull on the doors.
In the case of refrigerators with drawers, do not open more than one
drawer at a time and do not lean or sit on an open drawer, so as to avoid
overturning or damaging the refrigerator.
N.B.: In refrigerators with glass doors do not extract more than one
basket or rack at a time so as not to compromise the stability of the
refrigerator.
Gradually arrange the foodstuff starting from the bottom upwards; simi-
larly, remove foodstuff starting from the top downwards.