NUOVAIR NA T1 SC User manual

NA T1 SC
Operation and Maintenance Manual

Dear Customer
Thank you for purchasing the blast chiller of the INDUSTRY line.
This manual is an integral part of the machine/partly completed machinery and
as such must be kept for the entire useful life of the machine/partly completed
machinery.
For correct and safe use of the machine
you must follow the instructions
contained in this manual.
These instructions provide information
regarding:
•• The installation/commissioning methods.
•• Use of the machine.
•• Machine maintenance.
•• Decommissioning and disposal.
FAILURE TO COMPLY WITH THE INDICATIONS
PROVIDED MAY COMPROMISE THE SAFETY OF
THE EQUIPMENT AND IMMEDIATELY VOID THE
TERMS AND CONDITIONS OF THE WARRANTY
ANY INSTALLATION, MAINTENANCE,
ADJUSTMENT AND REPAIR OPERATION
MUST BE CARRIED OUT EXCLUSIVELY
BY QUALIFIED TECHNICIANS.
The manufacturer of the machine/partly
completed machinery may not be held liable
for anything relating to breakages, direct and
indirect harm to persons property or pets,
and any inconvenience caused, due to:
•• Improper/unintended use of the machine
•• Installation that is incorrect or carried out
by personnel not qualified.
•• Incorrect power supply.
•• Serious shortcomings in routine and
extraordinary maintenance.
•• Unauthorised modifications and
operations.
•• Use of spare parts that are not original or
not specific to the model.
•• Partial or total failure to comply with this
manual.
Nuovair S.r.l. reserves the right to make
any changes it deems necessary to
improve its product or its technical
manual by adding any variations in
subsequent editions without prior notice.
TECHNICAL SUPPORT SERVICE
This manual provides the necessary
information for use, operation and routine
maintenance of the blast chiller to which it
refers.
All service call-outs are regulated, therefore,
by the terms of use and warranty of the
BLAST CHILLER itself.
For any request for further information,
clarifications or technical support in general,
call our support centre:
e-mail : [e-mail]
Tel. [phone]
NOTE - When requesting support or when
ordering spare parts it is necessary to
always quote the blast chiller’s identification
data (see paragraph Identification of the
blast chiller).
2

SAFETY WARNINGS
5
INTRODUCTION
6
GENERAL INFORMATION
10
INSTALLATION
23
BLAST CHILLER IDENTIFICATION
23
DIMENSIONS AND OVERALL FOOTPRINT OF THE CABINETS
24
PRELIMINARY OPERATIONS
26
REFRIGERANT FLUID SAFETY DATA INDICATIONS
33
UTILIZATION
35
DESCRIPTION OF THE DISPLAY
35
FIRST START-UP
36
DESCRIPTION OF THE CYCLES
38
OPERATING MODES
43
BLAST CHILLING/FREEZING
44
IN FULL MODE (72 CYCLES)
44
BLAST CHILLING OPERATION EASY MODE
47
DEFROSTING
48
IONIZATION
49
HACCP
50
EXPORT ALARMS LOG
51
EXPORT LOG HACCP
51
IMPORT EXPORT PARAMETERS
52
DETAILED DISPLAY MENU
53
FAULTS AND POSSIBLE SOLUTIONS
55
ADVICE ON USE
64
NOTE
65
MAINTENANCE
67
ROUTINE AND EXTRAORDINARY MACHINE MAINTENANCE
67
NOTE
71
3

SAFETY WARNINGS
WARNING!
Before using the equipment it is
recommended that you carefully read and
observe the following safety warnings in
order to to reduce residual risks:
This manual is an integral part of the
machine/ partly completed machinery and
as such it must be kept for its entire useful
life. The manual is intended for all personnel,
operators and maintenance technicians
involved, with the purpose of providing the
necessary indications and instructions for
installation, commissioning, use, maintenance
and disposal of the machine/partly completed
machinery.
The user must read the warnings
contained in this operation and
maintenance manual carefully.
The machine is intended solely for
professional use, i.e. only qualified
personnel can use it. Therefore, the
machine is not intended to be used by
children or by persons with reduced mental,
sensory and physical abilities.
This equipment must be intended solely
for the use for which it was designed i.e.
for freezing and blast chilling of food
products. La Nuovogel S.r.l. assumes no
liability for any direct and indirect damage
resulting from improper use of the machine.
It is recommend to insert the packaged
food or with appropriate containers
equipped with lid.
At the end of each cycle the machine
allows a short maintenance of the
product. However, it is recommended to
extract the treated product within two hours of
the cycle’s end.
In case of malfunction or interruption of a
cycle always ensure whether the quality of
the treated food has been
unchanged, otherwise dispose of it.
Do not store explosive substances such as
aerosol cans with a flammable propellant
in this appliance.
Clean all the machine parts thoroughly
before using it, in particular those in
contact with food.
Installation, handling, operation,
maintenance and disposal of the machine
must be performed by professionally qualified
and authorised personnel.
Installation, handling, operation,
maintenance and disposal of the machine
must be performed by professionally qualified
and authorised personnel.
After removing the packaging, check that
the machine/partly completed machinery
is intact and not damaged.
Do not leave any of the packaging within
the reach of children as it could pose a
potential hazard (Suocation). All parts of the
packaging must be disposed of in
accordance with current regulations.
Before connecting the machine to the
mains, check that the rating plate data of
the machine correspond to those of the
mains electricity supply where the machine is
connected. The manufacturer is not liable if
the electrical connection is not carried out
according to the regulations in force.
5

The electrical safety of this equipment is
insured only when it is correctly
connected to an eicient earthing system, as
required by the regulations regarding
electrical safety. The machine manufacturer
assumes no liability for any direct or indirect
damage to property, persons or animals
caused by failure to earth the system.
If the power supply cable of the machine
is damaged, ensure that it is replaced
with an identical one by qualified personnel in
order to reduce or eliminate any resulting
risks.
Do not pull the power cable of the
machine to disconnect it from the mains.
Do not pour water on live parts of the
diate vicinity of the blast chiller. machine,
neither on the electric cable, nor on plugs.
In the event that the equipment is
immersed in liquids, due to natural or
other disasters, contact an authorised service
centre for repair before restarting the
machine.
In the event of strange noise, smoke
or odours coming from the machine,
disconnect immediately and contact
an authorised service centre.
Do not place the blast chiller on
unsuitable surfaces, for example on
uneven or sloping surfaces that have the
potential to become unsuitable and which
could cause instability of the machine or of
the product contained therein. The machine
must be levelled so that the condensate
drain works properly otherwise condensate
may leak from the machine door.
Before carrying out any type of routine
maintenance and cleaning operation,
disconnect the machine from the mains
power supply by operating the general
switch/ disconnector.
The core probe must be used solely for
the purpose for which it is designed, i.e. to
measure the temperature at the core of food
products that are being frozen or chilled.
Do not insert fingers, tools or objects
through the fan grilles, this could damage
the machine or eject parts resulting in cutting,
shearing and impact with persons in the
immediate vicinity of the blast chiller.
Do not clean the blast chiller with
abrasive or aggressive detergents that
could damage and alter the surface
properties of the cabinet’s steel.
Do not use the blast chiller outdoors.
Do not use accessories and parts that
are not original and not authorised by the
manufacturer.
Do not place the blast chiller near heat
sources or direct sunlight.
Under no circumstances should you
remove the protective grilles of the fans.
In case of prolonged machine
inactivity, disconnect it from the mains
power supply.
Place the machine with the back side
facing the wall, keeping the required
distances.
INTRODUCTION
GENERAL INFORMATION
The blast chiller has been designed
6

considering the directives and the attached
harmonised standards of the European Union,
as well as the related product standards
associated with it (See specific paragraph).
This manual is an integral part of the blast
chiller, identified in the present manual with
the term machine/partly completed
machinery produced by the company
Nuovair S.r.l. and part of the related
technical file Before carrying out any
operation on the machine/ partly completed
machinery, it is recommended that you
carefully read this manual so as to perform
all installation, commissioning, use,
maintenance, disassembly and disposal
operations in a correct and safe manner.
NOTE:
The blast chiller is a machine intended solely
for professional use and therefore must be
used only by qualified and trained personnel.
NOTE:
The customer can request a copy of this
documentation by writing to Nuovair S.r.l.
explaining the reason for such request.
INTENDED USE
The blast chiller is a machine designed for
the rapid cooling of products, substances
or mixture of substances, in any state of
the materia and structure not worked,
partially worked, or worked, destined to be
ingested by a human being (Food
products) with the purpose of:
•• Keep the organoleptic features of the
food as unaltered as possible.
•• Favor the prolongation of the average
life of food by counteracting the bacterial
proliferation that naturally occurs within
the same both during the post-cooking
cooling phases and those of food
storage waiting the production of the
finished product.
The blast chiller is a manually operated
machine. Once the machine has started, the
blast chilling or freezing cycle is managed
automatically and does not require the
constant presence of an operator, except for
the loading and unloading of the product.
Once the cycle selected by the operator has
been completed, the machine switches to a
product maintenance/ preservation phase,
i.e. it maintains the cabinet temperature at a
predetermined value.
Rapid food cooling can be used to freeze the
product or to cool it according to timing and
end-of-cycle temperatures established by law.
The blast chiller is formed by two partly
completed machines: Chilling cabinet and
condensing unit.
REASONABLY FORESEEABLE
MISUSE OF THE MACHINE
The reasonably foreseeable incorrect uses
of a blast chiller are:
•• Position the blast chiller in potentially
explosive environments.
•• Position the blast chiller in external
environments.
•• Position the blast chiller on unsuitable
surfaces, and on uneven surfaces or with
slopes which could be anomalous at times.
•• Use the machine for freezing live animals.
•• Use the machine for purposes other than
those for which it was designed or to treat
products other than food.
ABSOLUTELY FORBIDDEN USE
The absolutely forbidden uses of a blast chill-
er are:
•• Use the blast chiller as a working surface
or base to support other objects or
machines.
•• Get on and climb on the machine.
•• Touch the internal parts of the machine
with wet and nacked hands and feet.
•• Insert live animals or human beings inside
the machine.
7

•• Use pressurized water jets on
the evaporator.
•• Use water jets on the external part of the
machine.
•• Expose the machine to atmospheric
agents of any kind.
•• Expose the internal part of the machine
toexcessive concentrations of vapors,
acid solutions, saline mists or extremely
corrosive agents (ex. Acetic acid,
yeasts, ammonia ecc.).
•• Install the machine on surfaces unsuitable
to bear the weight of the machine.
•• Install the machine on non-insulated
surfaces in case of cells without bottom.
•• The use of the machine by persons
with disabilities or with reduced mental
abilities.
•• Power the machine with voltages different
from those indicated on the data plate.
•• Use the machine without having blocked
it securely.
•• Use the machine without personal
protective devices according to the
provisions in the machine’s use
and maintenance manual.
•• Perform the cleaning and maintenance
of the machine (cell + condensing unit)
by unqualified and trained personnel
and without respecting the procedures
indicated in the use and maintenance
manual.
•• Perform any kind of maintenance without
selecting the power supply.
•• Change any part of the blast chiller.
•• Use the machine in a dimly lit environment.
•• Use the machine in an enviroment with
minimum air renewal as established by the
technical sheet of the blast chiller.
•• Move the machine without using
specific means for lifting it.
•• Use condensing units different from those
supplied by the producer.
•• Use the water that comes from the
condensate drain.
SERVICE AREAS FOR
INSTALLATION, OPERATION, AND
MAINTENANCE OF THE MACHINE
The service area for installation, operation
and maintanance is indicated on the use
and maintenance manual.
The blast chiller is a fix machine and
the dimentions of the area depend on:
•• Machine model and
consequent dimensions.
•• By the possibility of disposing the heat
generated by the condensing unit.
•• By the type of used condensation.
In any case the front part of the machine must
be free from things and impediments in order to
ease the use of the same by the operator.
Moreover it is necessary to guarantee
a minimum area.
CRITICAL ENVIRONMENTS FACTORS
•• Use the machine with poor visibility and
lighting.
•• Use the machine without having
opportunely blocked it respecting the
service area.
•• Use the machine in potentially
explosive atmospheres.
•• Use the machine on sloping surfaces.
PROFESSIONALISM AND EXPERIENCE
REQUIRED BY THE OPERATORS
•• The operator must be properly trained for
the ordinary operation and maintenance
procedures; by means of the use and
maintenance manual and test training
alongside experienced staff.
INFORMATION OWNERSHIP
The information contained in this manual is
8

the property of Nuovair S.r.l. and, therefore,
all rights are reserved. This manual cannot be
reproduced or photocopied neither in part nor
in its entirety without the written consent of
the manufacturer. The use of the material
contained in the following operation and
maintenance manual is allowed only to the
customer who purchased the machine/partly
completed machinery.
Nuovair S.r.l. declares that the information
contained in this manual is in accordance with
the technical and safety specifications of the
machine/partly completed machinery to which
it refers.
The drawings, diagrams and technical
data in this manual are updated at the date
of publication and apply to the
machine/partly completed machinery to
which they are attached.
PURPOSE AND CONTENTS
OF THE MANUAL
This operation and maintenance manual is an
integral part of the machine/partly completed
machinery and as such must be kept for its
entire useful life. The manual is intended for all
personnel, all operators and maintenance
technicians involved in the purposes described
in this point. The purpose of the manual is to
provide the necessary indications and
instructions for the installation, commissioning,
use, maintenance, disassembly and disposal of
the machine/ partly completed machinery in a
correct
and safe manner. The manual also
provides information regarding:
1.The technical specifications of the blast
chiller.
2.How to prepare the workplace with regard to
environmental characteristics and electrical
connections.
3.Safety devices and warnings regarding
the residual risks of the machine.
4. The intended use and reasonably
foreseeable misuse Spare parts.
The topics are subdivided into sections, in
turn subdivided into progressively
numbered paragraphs and sub-paragraphs,
in order to allow you to quickly find the
required information.
The manual cannot in any way replace the
special training that operators must have
received previously on similar devices or
which they can have on this machine/partly
completed machinery under the guidance
of trained staff.
9

STORING THE MANUAL
The manual is considered an integral part of
the machine/partly completed machinery and
must be kept until the machine’s final
dismantling and disposal. The manual must
always be available for consultation and must
be carefully looked after, away from dust,
moisture and stored in a safe place; in case
of damage that partially affects its
consultation, the user is required to request a
new copy from the manufacturer.
The operation and maintenance manual
must accompany the machine/partly
completed machinery even in the case of
transfer of ownership.
this manual may render the safety conditions
foreseen in the design phase inefficient and
cause accidents for those who work with the
machine/partly completed machinery.
REFERENCE STANDARDS
For the design of the machine/partly
completed machinery, respectively, the
unibody blast chiller and the chilling cabinets,
the principles and concepts relating to the
harmonised standards indicated in table 1
have been followed and adopted.
GENERAL INFORMATION
WARNING!
The information contained in this
chapter refers only and exclusively to the
BLAST CHILLER and, if necessary, must be
supplemented with the information relating
to the safety regulations of the plant/- facility
where the BLAST CHILLER is used.
The entire documentation relating to the
machine/parly completed machinery has been
produced considering the topics indicated by
the machinery directive 2006/42/EC, by the
PED directive 2014/68/EU and by other safety
regulations (see dedicated paragraph).
The depiction or description relating to the
configuration of some parts of the machine/
partly completed machinery may present
differences between the manual and the
actual machine/partly completed machinery;
that is, there may be optional equipment.
Therefore, some indications and procedures
are of a general nature.
Unlisted drawings and photographs are
used for better clarity and are provided as an
example.
10 Failure to follow the instructions contained in

STANDARDS
DESCRIPTION
NATIONAL LEGISLATION
Ministerial Decree 21.03.1973
Hygiene regulations for packaging, containers and utensils intended to come into
contact with foodstuffs or with substances for personal use.
EUROPEAN LEGISLATION
Directive 2006/42/EC
Directive of the European Parliament and of the Council, of 17 May 2006, relating
to machinery and subsequent updates
Directive 2014/35/EU
Directive of the European Parliament and Council of 26 February 2014, known to
those working in the field as Low Voltage Directive (LVD).
Directive 2014/68/EU
Directive concerning the harmonisation of the laws of the Member States relating
to the making available on the market of pressure equipment (PED Directive).
Directive 2011/65/EC
Directive on the restriction of the use of certain hazardous substances in electrical
and electronic equipment Text with EEA relevance.
EC Regulation 1935/2004
Concerning materials and articles intended to come into contact with foodstuffs
and repealing Directives 80/590/EEC and 89/109/EEC
EUROPEAN LEGISLATION
UNI EN ISO 12100:2010
Safety of machinery - General principles for design - Risk assessment and risk
reduction. Part 1:Basic terminology, methodology. Part 2:Technical Principles.
UNI EN ISO 13857:2008
Safety of machinery - Safety distances to prevent hazard zones being reached by
upper and lower limbs.
UNI EN 13136:2014
Refrigerating systems and heat pumps - Pressure relief devices and associated
piping - Methods for calculation
UNI EN 14276-2:2014
Pressure equipment for refrigerating systems and heat pumps - Part 2:Piping -
General requirements.
UNI EN 12735-1:2010
Copper and copper alloys - Seamless, round copper tubes for air conditioning and
refrigeration - Part 1:Tubes for piping systems
UNI EN 378-1:2017
Refrigerating systems and heat pumps - Safety and environmental requirements -
Part 1:Basic requirements, definitions, classification criteria and selection.
UNI EN 378-2:2017
Refrigerating systems and heat pumps - Safety and environmental requirements -
Part 2:Design, construction, testing, marking and documentation.
UNI EN 378-4:2017
Refrigerating systems and heat pumps - Safety and environmental requirements -
Part 4:Operation, maintenance, repair and recovery.
CEI EN 60204-1
Safety of machinery - Electrical equipment of machines - Part 1:General
requirements
CEI EN 60335-2+189
Household and similar electrical appliances - Safety - Part 2:Particular
requirements for commercial refrigeration appliances with built-in or remote
refrigeration unit or compressor.
CEI EN 61000-6-1
Electromagnetic compatibility (EMC) - Part 6-1:Generic standards - Immunity for
residential, commercial and light-industrial environments.
CEI EN 61000-6-3
Electromagnetic compatibility (EMC) - Part 6-3:Generic standards - Standard
emissions for residential, commercial and light-industrial environments.
UNI EN ISO 7010:2017
Graphical symbols - Safety colours and safety signs - Registered safety signs
UL 60335-1 6th edition
Standard for Household and Similar Electrical Appliances
UL 60335-2+189 1st edition
Standard for Commercial Refrigerating Appliances with an Incorporated or
Remote Refrigerant Unit or Compressor
CAN/CSA-C22.2 No. 60335-1:16
Standard for Household and Similar Electrical Appliances
CAN/CSA-C22.2 No. 60335-
2+189:17
Standard for Commercial Refrigerating Appliances with an Incorporated or
Remote Refrigerant Unit or Compressor
11

TERMINOLOGY CONVENTIONS,
DEFINITIONS AND SYMBOLS
TERMINOLOGY CONVENTIONS
and tools that have the aim of minimising
damage resulting from health and safety risks
at work.
The term partly completed machinery
indicates both the chilling cabinet and the
condensing unit.
The term machine means the functioning
assembly of a chilling cabinet plus
condensing unit, whether built-in or remote,
connected to each other. This combination is
also called a blast chiller.
USEFUL DEFINITIONS
Hazardous area: Any area near the
machine/ partly completed machinery where
the presence of a person poses a potential
risk to said person.
User/Personnel: Any person who uses the
machine formed by the combination of the
condensing unit and the chilling cabinet, or
who entrusts the use or the operations
connected to the use to suitably trained
and instructed persons.
Person exposed to hazard: Person who is inside
or partly in a hazardous area or adjacent to it.
Mechanical Maintenance Technician: Qualified
technician with the necessary skills to work
on any mechanical part to carry out
adjustments, maintenance repairs, welding
and brazing.
Electrical Maintenance Technician: Qualified
technician with the necessary skills for electrical
operations and, where necessary, able to
operate even in the presence of voltage in
electrical panels or junction boxes.
Worker in charge of handling: Qualified
personnel who carry out the tasks of handling
the machine/partly completed machinery.
Manufacturer’s technician: Qualified technician
made available by the manufacturer of
the machine/partly completed machinery.
Personal protective equipment: PPE, or
Personal Protective Equipment, is equipment
SYMBOLS USED IN THE MANUAL
This symbol identifies a situation
for which failure to comply with the
indicated standards could cause
risks for the machine and for the
operator or exposed persons with
risk of injury or death.
This symbol identifies a number of
suggestions and details for correct
operation of the machine.
It indicates the need to use suitable
head protection for carrying out the
described operation.
It indicates the need to wear suitable
protective gloves for the operation to
be carried out.(Electrical insulating
gloves in the case of live parts).
It indicates the need to wear
suitable safety shoes for the
operation to be carried out.
It indicates the need to wear
suitable protective clothing for the
operation to be carried out.
It indicates the need to suitable
wear protective goggles for the
operation to be carried out.
It indicates the need to wear
suitable protective hair nets for
the operations to be carried out.
12

GENERAL SAFETY RULES
AND REGULATIONS
Observance of the machinery directive and
compliance with the paragraphs relevant to
the relative harmonised standards have
allowed use to eliminate or reduce the risks
connected to this machine/partly completed
machinery during its life stages.
The necessary warnings and safety
measures have been taken against residual
risks, that is to say those risks that could not
be eliminated by design choices or by using
guards. For detailed information see the
dedicated paragraphs.
Failure to apply these requirements could
render the safety conditions foreseen in
the design phase inadequate.
It is recommended to strictly follow the
warnings and the rules of conduct reported
here.
Personnel in charge of the operation and
management of the BLAST CHILLER must be
instructed by their employer on the correct use
and on the residual risks posed by the machine,
as well as on the safety devices installed and on
the general accident prevention rules provided
for by EU Directives and/or the legislation in
force in the country where the machine is to be
used. Personnel in charge of the operation and
management of the BLAST CHILLER must have
read these instructions in full.
Personnel responsible for using the blast
chiller must be in optimal mental and
physical condition and not be under the
influence of substances which, by their
nature, can alter the sense of perception
or slow down their reflections.
It is absolutely forbidden for children and
unsuitable persons and/or those with limited
mental abilities to operate and manage the
BLAST CHILLER; these persons must also
be kept at a safe distance from it.
Nuovair S.r.l. assumes no liability for damage
to property or persons deriving from the
BLAST CHILLER or for the physical safety of
the operator or third parties deriving
from the non-observance of the safety rules
indicated in the technical documentation
supplied with the BLAST CHILLER itself.
Before starting work, operators must be fully
aware of the features of the BLAST
CHILLER, the position and operation of all
the controls; furthermore, they must have
read and fully understood this operation and
maintenance manual.
WARNING!
The BLAST CHILLER must be used
exclusively by operators who have taken
part in the on-site training given by sta
from “Nuovair S.r.l. ” (if included in the
supply contract) and/or who have fully
understood the instructions contained in
the corresponding documents.
WARNING!
The instructions, warnings and general
accident- prevention rules contained in the
corresponding documents or indicated on
the signs attached to the BLAST CHILLER
must be respected in full.
WARNING!
Tampering or unauthorised replacement
of one or more parts of the BLAST CHILLER,
the use of accessories, tools, consumables
other than those recommended by the
manufacturer may represent a hazard to the
safety of the operator and free the
manufacturer from civil and criminal liability.
WARNING!
••Before using the machine, make sure
that any hazardous condition has been
properly eliminated.
••Before using the machine, make sure
that all guards or other protections
are in place and that all safety devices
are present and effective.
••After removing the packaging, make
sure that the machine is intact in all its
parts, otherwise contact your dealer.
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••Do not place solid or liquid objects on top
of the machine/partly completed machinery.
••Before carrying out any cleaning or
maintenance on the machine/partly
completed machine, disconnect the
equipment from the mains.
••In the event of a fault or malfunction, always
switch o the equipment. In the event of
machine fault and/or malfunction, turn it
o and refrain from any attempt to
repair or intervene directly. Contact
qualified personnel.
CLOTHING
Those working or carrying out maintenance
on the machine/partly completed machinery
must always wear clothing that is adequate
for the type of operation to be carried out.
Furthermore, it must comply with the safety
requirements of the legislation in force in
the country of use of the machine/partly
completed machinery itself.
In general, the operator must wear the
correct PPE. The operator must wear safety
footwear with non-slip soles; moccasins,
clogs, slippers or other types of footwear that
can compromise the mobility of the person is
not allowed. Hair must be tucked under a
special cap.
Clothing worn must be adequate for the work
to be carried out, in particular avoid wearing:
•• Loose-fitting clothes
•• Wide sleeves
•• Ties and scarves
•• Necklaces, bracelets and rings
Both your clothes and hair could get caught
in rotating parts and result in serious
consequences.
ACCESS TO THE WORK AREA
The work area (in particular the areas where
the control panels and emergency push
buttons are installed) must never be occupied
by material or anything else, so that nothing
interferes with the operator’s freedom of
movement.
In the event of an emergency, personnel in
charge must have immediate access to the
BLAST CHILLER. It is advisable to prohibit
access to the work area to persons not
trained to use the blast chiller by using
appropriate warning signs.
The use of the BLAST CHILLER is prohibited
to children and all unsuitable persons; these
persons must therefore be kept at a safe
distance from it. During maintenance
operations, especially whenoperating with
guards open or safety devices disconnected,
which is permitted only to personnel formally
authorised and duly instructed, great care
must be taken to ensure that THE WORK
AREA IS INACCESSIBLE TO PERSONS not
directly involved in these operations.
During maintenance operations, the area
where this operation is carried out must
always be clean and dry.
If it is necessary to carry out work near
electrical components, always work with dry
hands and wear electrical insulating gloves.
At the end of maintenance operations, check
that no tools used have been left inside the
BLAST CHILLER and that any guards
removed have been repositioned.
ENVIRONMENTAL USAGE CONDITIONS
1.TEMPERATURE AND HUMIDITY
The BLAST CHILLER must be used in
rooms with an ambient temperature
between + 5°F and + 32°F and with
relative humidity below 55%.Exceeding
this limit does not affect machine
functionality. In the case of a blast chiller
with a remote condensing unit (i.e.
positioned outside) outside air
temperatures must NOT exceed 109°F.
2.OPERATING ENVIRONMENT
The BLAST CHILLER must be used in
locations protected from atmospheric
agents (rain, hail, snow, fog, etc.) and only
in industrial/workshop environments. In the
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case of a remote condensing unit, this must
be installed in a special machine room or if
positioned outside it must be protected from
atmospheric agents (rain, hail, snow, fog,
etc.) and in a place sheltered from the sun. In
any case, minimum levels of ventilation must
be guaranteed. The BLAST CHILLER is not
designed to be used in an explosive or
partially explosive atmosphere: it is therefore
forbidden for the user to use it in such
conditions.
3.LIGHTING
The place where the BLAST CHILLER is
installed must have a lighting system that
makes it easy to identify the push buttons
and the emergency stop and control
devices. An indicative value of good
industrial lighting for acceptable accurate
working is 300-600 lux).
4.ATMOSPHERES AND AGGRESSIVE
SUBSTANCES WITHIN THE CABINET
The freezing, cooling and tenderising of
some food products generates the
release of particularly aggressive and
corrosive vapours for the evaporator coil.
Despite being protected by surface
treatment, caution must be exercised with
some products. In particular, the surface
treatment adopted for evaporator coils of
trolley-type blast chillers is not suitable in
the presence of:
1)NITRIC ACID.
2)SODIUM HYPOCHLORITE >5% (BLEACH).
3)SODIUM HYDROXIDE >10%.
4)CHROMIC ACID.
5)FORMIC ACID.
6)HYDROFLUORIC ACID.
7)SULPHURIC ACID.
8) MIX OF ACETONITRILE; METHANOL,
TETRAHYDROFURAN; HEXANE;
DICHLOROMETHANE and others.
If in doubt about the substances that can
damage the evaporator, contact the La
Nuovair S.r.l. support service
5. RESIDUES AND ENVIRONMENTAL
CONTAMINATION
The user is required to comply with the rules
and directives in force in the country where
the BLAST CHILLER is used with regard the
treatment of lubricants and fluids possibly
used in the BLAST CHILLER.
SAFETY DEVICES
The blast chiller is equipped with active and
passive safety devices. Everybody entrusted
with using the blast chiller, or in any case
likely to come into contact with it, must
carefully read this operation and maintenance
manual in which the hazardous areas and the
relative safety measures adopted will
be described, in addition to the so-called
“residual risk” areas, i.e. those areas which,
despite the measures adopted, still present
a certain degree of danger.
WARNING!
The safety devices must not be removed
or deactivated for any reason; any operation
carried out on the BLAST CHILLER by
deliberately excluding the safety devices or
any type of tampering with the devices
themselves is at the person’s own risk.
PASSIVE SAFETY DEVICES
The following devices and build solutions
have been used for the blast chiller:
•• Painted steel grilles (outside the cabinet)
and non-painted steel grilles (inside the
cabinet) to protect the rotating parts or
technical compartments.
•• Hazard warning signs have been placed
on the unit to highlight the areas where
particular attention must be paid and the
areas with residual risk for the safety of the
operator and exposed persons.
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WARNING!
The removal of the signs or their non-
replacement in the event of deterioration
means the user takes on full liability for all
the consequences that may arise or derive
from the use of the BLASTER CHILLER due
to non compliance with the safety
conditions foreseen by the manufacturer.
ACTIVE SAFETY DEVICES
The following active safety devices have
been adopted for the blast chiller:
•• Safety pressure switch, where applicable.
•• Safety valve, where applicable.
RISK ASSESSMENTS AND
RESIDUAL RISKS
The information contained in this paragraph
relates solely and exclusively to the BLAST
CHILLER, therefore the user must integrate
it with the factory risk assessment where the
BLAST CHILLER is installed.
The assessment of the risk deriving from the
use of the BLAST CHILLER has been
carried out following the standards and
directives in force and indicated in the
paragraph “Reference Standards”. In order
to avoid any hazards to persons or damage
caused by residual risks, i.e. those risks that
remain despite the provisions adopted,
Nuovair S.r.l. recommends that all personnel
working with the blast chiller follow and
understand the instructions given in the
following paragraphs.
It should, however, be kept in mind that the
best safeguard for operator safety is that
operator must always exercise caution and
common sense and that greater
experience acquired over time using the
machine can also contribute to improving
the safety margins in one’s own work.
LIFTING AND TRANSPORT
Residual risks during lifting and transport
•• Possible crushing and shearing of the
limbs of the operators assigned to handling
due to loss of load stability, or kinetic or
potential energy during handling, lifting
and/or transport operations.
•• Parts or components of the blast chiller
hitting persons or property due to
unexpected movements or incorrect
behaviour by the handling operators or
due to the projection of moving parts of
the blast chiller not properly secured in the
packing phase.
•• Unhealthy postures or excessive
exertion for operators assigned to
handling and transport.
Personal Protective Equipment required:
Special attention to be paid during
lifting and transport
During lifting and transport, special attention
must be paid to the operations described
below.
•• Designate these operations exclusively to
personnel specialised and trained in
machinery handling procedures and able
to choose and safely use the most
suitable lifting and transport means.
•• Check and make sure before moving or
lifting that any movable parts are properly
secured.
•• DO NOT LIFT THE BLAST CHILLER, THE
CHILLING CABINET OR THE CONDENSING
UNITS USING NON-STRUCTURAL PARTS,
BY THE LEGS OR BY THE WHEELS.
•• Make sure that there is nobody near
the area where the lifting, handling and
unloading operations take place.
•• Always forewarn the start of manoeuvres.
•• Do not pass under suspended loads
and always keep a safe distance.
•• Never transport yourself together with
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UNPACKING, INSTALLATION,
CONNECTION AND TESTING LOADS.
Residual risks during unpacking,
installation and connection
During installation and connection the
following risks are possible:
•• In case of malfunction or interruption of a
cycle always ensure whether the quality
of the treated food has been unchanged,
otherwise dispose of it.
•• Operations on machines/partly completed
machinery (chilling cabinet and
condensing unit) by unqualified, untrained,
non-instructed or improperly equipped
personnel.
•• Electrocution, shock, burns, fire from
contact with live parts
•• Burns and injuries due to cold or heat.
•• Impact, crushing and shearing by the
machine/partly completed machinery
handled, or by elements and
components projected by it during
handling and/or lifting phases.
•• Suffocation caused by packaging.
•• Tripping and falling caused by the
electrical connections and the refrigerant
piping Damage to the machine/partly
completed machinery during installation
and connection..
•• Asphyxiation caused by gas that may
escape from the machine/partly completed
machinery during the installation phases.
•• Explosion of parts or piping of the
machine/partly completed machinery
during the installation and welding of the
refrigerant lines.
Personal Protective Equipment required:
Special attention to be paid during
unpacking, installation and connection
During unpacking, installation and
connection, special attention must be paid
to the operations described below.
•• Follow the instructions previously given
in paragraph “lifting and transport” during
the necessary machine/partly completed
machinery handling operations.
•• Do not dispose of the packaging in the
environment and do not leave any
packaging within the reach of children as
it may result in suffocation. Dispose of
the material in full compliance with
current regulations.
•• The compressor discharge piping and the
suction piping could reach temperatures
such as to cause burns and scalds from
cold and heat. Check the temperature of
the pipes before touching them. Always
wear protective gloves.
•• In the event of gas leaking from the
refrigerant circuit during installation and
maintenance, do not touch and inhale the
leaked gas. It may cause cold burns and
suffocation. Before returning to the area,
aerate and ventilate the space as much as
possible and verify the air quality (see
safety data sheet of the gas used). In the
event that gas leaks involve flammable
fluids, in addition to the precautions of the
previous point, disconnect the general
power supply and evacuate the area.
•• Do not weld on pipes containing refrigerant
as they could explode, projecting sharp
parts and/or molten parts that can hit and
injure persons or animals in the
surrounding area and in the most serious
cases even result in death.
•• After installing and maintaining the
machine, check that there are no
refrigerant gas leaks.
•• Do not let the electrical panel and internal
components come into contact with
conductive liquids.
•• Do not wash the machine with water jets
as these could damage the machine/partly
completed machinery and give rise to
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electrical and mechanical problems.
•• Do not insert fingers, tools or objects
through the fan grilles that could
damage the machine or project parts
with consequences of cutting and hitting
persons in the immediate vicinity of the
blast chiller.
•• Do not pull the blast chiller power cable
as it could get damaged and cause short
circuits and become conductive parts,
thereby posing a risk of electrocution, fire
and shock.
•• Only electrical maintenance personnel
must access electrical parts.
•• Protect the piping connections to energy
sources by means of suitable stiff
sheaths or cable ducts.
•• Insulate the heat transfer fluid pipes in
order to eliminate condensation and
avoid cold burns.
•• Always carry out the required operations
using compliant tools and always pay the
utmost attention to elements that could
lead to tripping or cause cuts and bruises.
USE
Residual risks during use
During use there are residual risks connected
to:
•• Operations carried out on the machine
by unqualified, untrained or improperly
equipped personnel.
•• Burns and injuries caused by contact
with objects or materials at high or low
temperature.
•• Slipping caused by slippery or wet
machine floor.
•• Tripping and falling caused by the
access ramps to the machine.
•• Asphyxiation caused by gas that may
escape from the machine/partly completed
machinery during operation.
•• Entanglement, dragging, suffocation
caused by rotating moving parts.
•• Musculoskeletal disorders caused by
low air temperatures inside the chilling
cabinet.
•• Trapping due to the door closing.
Personal Protective Equipment required:
Special attention to be paid during use.
•• Before carrying out any cleaning
operation, disconnect the machine from
the mains power supply.
•• Under no circumstances remove the
protective fan grilles, as there are
rotating parts that could result in impact,
entanglement, abrasion, suocation and
shearing.
•• Do not insert fingers or objects through the
protective grilles of the fans or at the sides
of the air ducts.
•• Do not work on the machine with bare
feet or without suitable PPE, or with wet
or damp hands.
•• Do not use water jets to wash either
the inside or outside of the machine.
•• If the machine is submerged by liquids,
before starting it, contact the manufacturer
or an authorised service centre to service
it.
•• In the event of prolonged inactivity,
disconnect the machine from the power
supply.
•• Do not expose persons to cold air from the
blast chiller directly because it could cause
muscular problems or other conditions.
•• Do not place the food directly in
contact with the inside of the cabinet,
but in suitable food-grade containers.
•• The water that drains from the condensate
discharge pipe is not drinkable and
therefore cannot be used in any way.
•• In case of anomalous noises and/or
odours and in the presence of smoke
coming from the machine, disconnect the
power supply cable or cut o the machine
using a suitable disconnecting switch and
contact the authorised service centre.
•• Hair must tucked under a special cap.
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Clothes worn must be adequate for the
work to be carried out, in particular avoid
wearing loose-fitting clothes, baggy
sleeves, ties and scarves, necklaces and
bracelets as they could be sucked into
the fans resulting in serious injury to the
operator.
•• In case of fire do not use water to
extinguish the fire, instead use
extinguishers designed for live parts.
•• If the operator gets trapped inside the
cabinet during machine loading, simply
push the door at the luminescent sign
inside the cabinet.
MAINTENANCE AND DISMANTLING
Residual risks during
maintenance and dismantling
During maintenance and dismantling there
are residual risks connected to:
•• Operations on partly completed machinery
(chilling cabinet and condensing unit) by
unqualified, untrained, non-instructed or
improperly equipped personnel.
•• Electrocution, shock, burns, fire from
contact with live parts
•• Burns and injuries caused by contact with
hot parts of the machine/partly completed
machinery or with instruments and
equipment used.
•• Impact, crushing and shearing by the
machine/partly completed machinery
handled, or by elements and
components projected by it during
handling and/or lifting phases.
•• Tripping and falling caused by the electrical
connections and the refrigerant piping.
•• Damage to the machine/partly completed
machinery during maintenance.
•• Asphyxiation caused by gas that may
escape from the machine/partly completed
machinery during maintenance and
dismantling.
•• Explosion of parts or piping of the partly
completed machinery during maintenance
and decommissioning.
•• Contact with refrigerant fluid. Personal
Protective Equipment required:
Special attention to be paid during
maintenance and dismantling
During maintenance and dismantling, special
attention must be paid to the operations
described below.
•• Always carry out the required operations
using compliant tools and always pay the
utmost attention to elements that could
lead to tripping or cause cuts and bruises.
Always wear appropriate PPE.
•• Maintenance and dismantling/disposal
operations must always be carried out by
qualified and specially trained personnel.
•• Check that supplies, signals (where
applicable) and power have been suitably
cut o and that no one can reactivate them
before completing maintenance (including
cleaning) and decommissioning. Also
check that any residual energy from the
heat transfer fluid has been discharged
before proceeding with any operation.
•• Operate on the machine/partly completed
machinery and on the relative piping after
having emptied them from the refrigerant
gas and carry out the vacuum operations
before restarting the machine.
•• Restore the positioning of the protective
fan grilles once the machine maintenance
is finished, as rotating parts can cause
impact, entanglement, abrasion, shearing
and suffocation.
•• Do not insert fingers or objects through the
protective grilles of the fans or at the sides
of the air ducts.
•• Do not work on the machine with bare
feet or without suitable PPE, or with wet
or damp hands.
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•• Do not use water jets to wash either the
inside or outside of the machine.
•• Before restarting the machine, after
maintenance or cleaning operations, check
that you have not left any tools inside
the machine. Check the tightening of the
movable or openable parts and reposition
all the safety devices removed, as well as
check for the absence of refrigerant fluid
leaks. Also check the correct positioning of
the ballcocks and shut-off valves.
•• Before carrying out any cleaning
operation, disconnect the machine from
the mains power supply.
•• Never use gasoline, solvents or other
flammable fluids for cleaning parts,
only use approved, non-toxic and
non-flammable detergents.
•• Do not make any modifications or
alterations to the machine/partly
completed machinery that could
compromise its safety and without first
having contacted and obtained written
authorisation from the manufacturer.
HAZARD WARNING SIGNS
Hazard warning signs have been attached to
the machine in order to highlight the areas of
the BLAST CHILLER where particular
attention must be paid and the areas with
residual risk for the safety of the operator and
exposed persons.
WARNING!
The removal of the signs or their non-
replacement in the event of deterioration
means the user takes on full liability for all
the consequences that may arise or derive
from the use of the BLASTER CHILLER due
to non compliance with the safety
conditions foreseen by the manufacturer.
This symbol tells you
that it is not possible to
use water, or water/
foam extinguishers to
put out fires on electrical
equipment.
This symbol tells you that it
is not allowed to carry out
work on live systems, touch
systems if not authorised,
remove the safety guards
and casings before having
disconnected the voltage.
This symbol tells you that
it is not allowed to remove
the safety devices and
protections installed.
This symbol warns of the
danger of hot surfaces
close to surfaces where it
is attached. In our case
this symbol is attached to
the outside of the chilling
cabinet but actually refers
to the surfaces inside.
This symbol warns of a low
temperature hazard. Also in
this case the symbol is
attached to the outside
of the chilling cabinet
but actually refers to the
surfaces inside.
This symbol warns of a
slipping hazard due to the
chilling cabinet floor that
may be icy or slippery.
This symbol identifies a
live electrical system.
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