Virtus VN8 Mode D'emploi page 10

1.6.4 SYMBOLS USED
SYMBOL MEANING
2. DESCRIPTION AND OPERATION OF THE APPLIANCE
2.1 DESCRIPTION
The upright refrigerators are condensed air refrigerator units made up of:
•. A.condensing.unit.(outside.cold.storage.room)
•. A.evaporating.unit.(inside.cold.storage.room)
•. A.control.panel.(positioned.on.the.condensing.unit)
•. Defrosting.is.of.the.electric.type.and.it.is.automatic
•. Condensation.is.air.based
2.2 OPERATION
The upright refrigerators are refrigerator units which function by means of refrigerator compressor of the airtight type. With
air tight motion and alternative motion, powered by electricity (mono phase or three phase) and using as a refrigerant the
fluid.R404A/R134A.
Principle of refrigerator operation cycle
In thermodynamics for the refrigerator cycle we intend the change of state which a certain body undergoes (for example a
refrigerating fluid). The passage of the refrigerating fluid from the liquid state to the gaseous state takes place in the evapora-
tor. Because this is an endothermic phenomenon, it needs heat which, when it happens, is taken from the air which the
evaporator comes into contact with. So, when coming out of the evaporator, the vapours of the refrigerating fluid are sucked
out by an air compressor and sent to the condenser. If the latter takes away not only the heat that the gaseous refrigerating
fluid has acquired during the course of the evaporation (ENTALPIA DI EVAPARATION), but also the calorific equivalent of the
compression work, then the fluid returns to the liquid sate. Because liquefaction is an exothermic phenomenon, there is
production of heat, which is disposed of through air and through water. The refrigerant fluid, leaving the condenser, passes
through an expansion organ and returns to the evaporator, thus completing the cycle.
3. PREARRANGEMENTS
3.1 ILLUMINATION
The illumination of the area must conform with the POWER regulations of the country in which the equipment is installed
and must, in any case, guarantee good visibility at all points, it must not create dangerous reflections and must allow for easy
reading of the controls.
3.2 VIBRATIONS
In conditions of use which comply with the indications for correct use, the vibrations are not enough to create dangerous
situations.
3.3 EMISSION OF SOUND
The refrigerator unit is designed to reduce the level of noise at source (see attached 13.2.2)
3.3.1 SUPPLIES ON REQUEST
It.is.to.be.understood.that.any.modification.and/or.addition.of.accessories.must.be.explicitly.approved.of.and.carried.out.by.
the Manufacturer.
SYMBOL
3.4 ELECTROMAGNETIC ENVIRONMENT
The refrigerator is designed to function correctly in an industrial electromagnetic environment, coming within the Emissions
and Immunities foreseen by the following regulations:
EN50081-2 Electromagnetic compatibility- General regulation for emission Part 2 Industrial environments (1993)
EN50082-2 Electromagnetic compatibility- General regulation for Immunity Part 2 Industrial environments (1995)
COMMENT
Indicates a warning or a note on a key function or useful information. Pay
WARNING
great attention to text indicated by this
It is necessary to consult the Instruction Booklet before carrying out the
CONSULTATION
operation
MEANING
Any.alteration.or.modification.of.the.fridge.made.by.the.operator.and/or.
WARNING service operator is forbidden for security reasons. The manufacturer decline
any responsibility for unautorizated modifications
COMMENT
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