ALFA
ALFA
ALFA TW SELF
Tel. +39 075 80171 - Fax +39 075 8000900
ALFA TW
ISA S.r.l.
Via del Lavoro, 5
06083 Bastia Umbra - Perugia - Italy
www.isaitaly.com
EN
ALFA
USE AND MAINTENANCE MANUAL
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1. MANUFACTURER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2. WARRANTY TERMS AND CONDITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . .4
3. EQUIPMENT IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
4. USE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
4.1 Composition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
5. NOTES / IMPORTANT NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
6. SAFETY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
6.1 Safety devices installed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
6.2 Fixed guards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
6.3 Electrical power disconnection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
6.4 Residual risks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
6.5 Risks of contact with parts under stress . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
6.6 Fires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6.7 Explosive atmosphere . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
6.8 Slipping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
6.9 Tripping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
6.10 Circuit faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
6.11 Warning labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
60.12 Explosion hazard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
6.13 COOLANTS
(where applicable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7. DISPOSAL OF WASTE MATERIALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
8. INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
8.1 Storage and unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
8.2 Installation - Positioning - Ambient conditions . . . . . . . . . . . . . . . . . . . . . . .13
8.3 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
9. MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
10. FAILURE - TECHNICAL SUPPORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
10.1 Alarm log
(where applicable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
11. TECHNICAL SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
11.1 Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
11.2 Load limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
12. CONTROL PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
12.1 User interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
13. CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
13.1 Internal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
13.2 Condensing unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
14. ATTACHMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
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EN
The manual contains symbols to attract the reader's attention and highlight particularly
important aspects. The table below illustrates the meaning of the various symbols used.
Read the instructions manual
Use of protective clothing
Danger: Live electrical parts
Requests for maintenance or operations must be carried out by qualifi ed staff or technical after-sales centres
Attention/Danger
Important information
Information
Operations that must be performed by two persons
Visual observation
Notes/Important Notes
Condensing Unit on Board
Remote Condensing Unit
EN
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1. MANUFACTURER
ISA S.r.l.
Via del Lavoro, 5
06083 - Bastia Umbra - Perugia - Italy
Tel. +39 075 80171
Fax +39 075 8000900
www.isaitaly.com
2. WARRANTY TERMS AND CONDITIONS
The seller's warranty on the equipment is valid for 12 (TWELVE) months from the date of delivery.
The warranty includes repairs or replacements of any faulty parts due to manufacturing processes or
installation after written communication has been received, stating the appliance serial number and date
of installation.
The following are not covered by warranty:
• all fl aws due to an improper use of the equipment
• all fl aws due to an improper connection to the power grid
• all fl aws due to standard component wear (as for instance: breakage of compressors and neon lamps,
if not due to manufacturing fl aws)
• calls to request installation, technical instructions, adjustments, cleaning of the condenser
If the seller's technical staff detect any tampering, unauthorised repairs or inappropriate use of appliance
the warranty will be invalidated.
Shipment of components covered by the warranty is freight collect only.
Any damage to the appliance detected at the time of delivery due to transport must be reported on the
same shipping note to claim compensation from the carrier.
The seller cannot be held liable in the event of damage to the preserved product
due to appliance failure
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3. EQUIPMENT IDENTIFICATION
• Find the label affi xed on the machine to read the technical data.
• Check the machine model and the power supply voltage before you perform any operation.
• If you uncover mismatches, contact the manufacturer or the company that supplied the machine immediately .
1 Symbols of Compliance
2 Manufacturer's address
3 Production Order
4 Type
5 Model Name
6 Article
7 Serial Number
8 Production Date
9 - 10
11 Gross Capacity
12 Absorption at Rated Capacity
13 Absorption during Defrosting
14 Absorption of Heating Elements
15 Lamp Power
16 Fuse Value
17 Climate Class
18 Number of Motors
19 Type of Coolant
20 Amount of Coolant
21 Safety Class
22 - 23 Customer order
24 WEEE Mark
Power supply
Voltage and Frequency
EN
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4. USE
This appliance is exclusively intended to display cold cuts and sausages, cheese,
dairy and/or prepackaged products.
The manufacturer is not liable for harm or damage caused to persons, property or to the applicance
itself that are due to the user displaying other products than those specifi ed above.
Never use electric devices inside this appliance. Do not use mechanical or other means to accelerate
the defrosting process, other than recommended by the manufacturer. Keep the air vents in the casing
of the appliance or in the structure built into the wall free of obstructions.
THE APPLIANCE IS INTENDED FOR PROFESSIONAL USE
Improper use (not allowed)
- Food preservation.
- Displaying and/or preserving non-food products (chemicals, pharmaceuticals, etc...).
4.1 COMPOSITION
The appliance is made up from a unique cabinet, onto which all devices necessary to make it a professional
and effi cient product for its declared use, are installed.
The appliance is made up from:
• Cooling system
• Condenser unit on board
• Electric plant - Electronic control board
• Insulated monolithic structure in ecological polyurethane
• Supports (adjustable height)
• Swiveling wheels to move the cabinet (2 w/brake)
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5. NOTES / IMPORTANT NOTES
The content of this manual is of technical nature and is owned by ISA S.r.l. It is forbidden to reproduce,
circulate or modify all or part of its content without written consent. Any infringement will be legally
pursued.
The manual and the conformity certifi cate are an integral part of the equipment and should always
accompany the product in the event of a transfer to a new location or to a new owner. The user is
responsible for the integrity of these documents, for their consultation and during the whole life cycle of
the equipment itself. Keep this manual in a safe place. It should be available for consultation near the
equipment at all times. If lost or destroyed, you can request a copy of the manual from ISA S.r.l. by
specifying the exact model, serial number and year of manufacture. The manual refl ects the manufacturing
technology at the time of supply . The manufacturer reserves the right to modify its products in any way it
deems necessary , with no obligation to update manuals and machines relating to previous manufacturing
batches.
This equipment is not intended for use by persons (including children) with reduced physical, sensory
or mental capabilities or by persons lacking the necessary experience and knowledge, unless they are
supervised by a person responsible for their safety who has instructed them on how to use the equipment.
Children should be supervised to ensure that they do not play with the equipment. Always refer to this
manual before going ahead with any operation. Before doing any type of work, disconnect the equipment
from the power supply. Any work on electric and electronic parts or cooling system components should
only be carried out by trained personnel in compliance with current laws.
The Manufacturer cannot be held liable for any injury to persons or animals, or damage to the product
itself in the event of:
• improper use of the equipment or use of the appliance by unqualifi ed or unauthorised personnel;
• failure to comply with current legislation
• incorrect installation and/or power supply faults;
• failure to observe the instructions contained in this Manual;
• failure to follow the maintenance programme;
• Unauthorised modifi cations;
• installation of non-original spare parts in the equipment;
• installation and use of the equipment for purposes other than those for which the appliance was
designed and sold;
• Tampering with or damage to the power supply cable.
Liability for applying the safety instructions contained in this manual is held by the technical personnel
responsible for the intended use of the equipment, who should ensure that authorised personnel:
• are qualifi ed to carry out the requested activity;
• Are aware of, and carefully comply with, the instructions contained in this document;
• are aware of, and apply, the general safety standards applicable to the equipment.
The buyer is responsible for training personnel using the appliance on the risks, safety devices and
general health and safety rules required by the laws of the country where the appliance is installed.
Users/operators should be aware of the position of all the controls and how they work, as well as of the
features of the appliance.
They should also read this manual in its entirely.
Maintenance work should be conducted by qualifi ed personnel after the appliance has been prepared
adequately.
Danger
Unauthorised tampering or replacement of one or more parts of the appliance, use of accessories
that modify the use of the same and use of spare parts different to those recommended, can become
the cause of injury.
Danger
Any work conducted on the on the appliance MUST involve disconnection from the power socket and
in any case, none of the protective elements (grid, casing) should be removed by non-qualifi ed staff.
The appliance should not be operated when these protective elements have been removed.
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STAFF TRAINING
The buyer is responsible for ensuring personnel who will use the appliance and maintenance technical
staff are instructed and trained adequately.
The manufacturer is available for advice, clarifi cations, etc. so that the operator and technical staff can
use the appliance correctly.
T o ensure the oper ator's safety, appliance devices should be kept in constant working order. This manual
is intended to illustrate the use and maintenance of the appliance. The operator has a responsibility and
duty to carefully observe the instructions contained within it.
Failure to comply with safety standards may result in injury to personnel and damage to the equipment
components and control unit. The user can contact the dealer to request additional information not
contained in this document, or suggest improvements, at any time.
Before the product is delivered to the customer, it is essential that a trained technical member of
staff checks that the appliance is operating correctly in order to achieve maximum performance.
INTRODUCTION
ISA S.r.l. employs materials of the best quality and as they enter the company, we constantly monitor
their storage and the use as part of the manufacturing process to prevent damage, deterioration and
failure. All manufacturing elements are designed and manufactured in order to guarantee reliability
and high safety standards. All appliances are subjected to a strict testing procedure before delivery.
However, please bear in mind that product performance over time depends on correct use and adequate
maintenance. This manual contains the necessary instructions to maintain the appliance's initial
appearance and functions over time.
Note
In order not to compromise functionality and safety of the appliance, the particularly complex installation
and maintenance activities are not documented in this manual and are performed by specialised ISA
s.r.l. technicians.
The Use and Maintenance manual contains the necessary information for understanding how the
appliance works and how to use it properly, namely: the technical description of the various operational
units, equipment and safety systems, operations, how to use the instruments and the interpretation of
any diagnostics reports, main procedures and information relating to routine maintenance. For correct
use of the appliance, the working environment should comply with current health and safety standards.
The safety requirements, indications, standards and notes illustrated in the various chapters of the
manual are aimed at establishing a code of conduct and a series of obligations to be observed when
performing the various activities, in order to create safe conditions for personnel, the equipment and
the surrounding environment. The safety standards reported in this document are intended for trained,
authorised personnel responsible for:
• Transport
• Installation
• Operation
• Management
• Maintenance
• Cleaning
• De-commissioning
• Disposal
Attention
Reading this manual, albeit in full, is no substitute for adequate user experience. therefore it should
only be considered a useful reminder of the technical features and the main operations to perform.
Warning
The installers and users MUST read and understand the instructions contained herein before any
operation on the appliance.
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6. SAFETY
The appliance is equipped with safety devices:
6.1 SAFETY DEVICES INSTALLED
Devices whose operation prevents the occurrence of risk situations in operating conditions (e.g. fuses,
pressure switches, protections, magnet circuit breakers, etc.).
6.2 FIXED GUARDS
Fixed protective devices consist of fi xed perimeter shields, which are used to prevent external parts
from entering the equipment.
Danger
It is prohibited to re-start the appliance following maintenance without having correctly restores the
panels.
Visual Check
You should check the integrity of fi xed panels and corresponding fi xings to the frame, focussing in
particular on the protective panels.
6.3 ELECTRICAL POWER DISCONNECTION
Before conducting any maintenance work on the equipment or part of it, it is necessary to section the
power supply that powers it.
Danger
In the event of maintenance operations in which the operator cannot prevent accidental closure of
the circuit by others, to totally disconnect the appliance from the mains electricity.
6.4 RESIDUAL RISKS
During design the manufacturer examined all the areas or parts at risk. Therefore, all necessary
precautions have been taken to prevent risks to persons and to the appliance.
Attention
Periodically check that all safety devices are operating correctly.
Do not remove the fi xed guards.
Do not introduce objects or tools into the work area.
However, though the appliance is fi tted with the aforementioned safety devices, there are still some
risks that cannot be eliminated, but reduced via corrective actions by the fi nal user and correct
operational procedures.
6.5 RISKS DUE TO CONTACT WITH PARTS UNDER STRESS
Risk of breaking or damaging the electrical components of the appliance, with a possible reduction in
safety levels, following a short circuit.
Before connecting the electricity supply, make sure there is no ongoing maintenance work.
Attention
Before making the connection, check that the d.c. current in the installation point does not exceed
that indicated on the protections switches present in the electric control board. If this is not the case,
the user must envision the relevant limiting devices.
It is strictly forbidden to conduct any electrical modifi cation, in order to prevent additional unforeseen
hazards and risks.
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6.6 FIRE
Danger
In the event of a fi re, immediately disconnect the master switch from the main power supply line.
6.7 EXPLOSIVE ATMOSPHERE
The equipment must not be located in an area classifi ed as an explosion risk according to 1999/92/EC
such as:
Zone 0
An area in which there is a permanent, long-lasting or frequently explosive atmosphere made up of a
mixture of air and fl ammable substances in the form of gases, fumes or steam.
Zone 1
An area in which the formation of an explosive atmosphere, made up of a mixture of air and fl ammable
substances in the form of gases, fumes or steam is occasionally probable during normal activities.
Zone 20
An area in which there is a permanent, long-lasting or frequently explosive atmosphere in the form of
clouds of combustible dust in the air.
Zone 21
An area in which the formation of an explosive atmosphere in the form of clouds of combustible dust is
occasionally probable during normal activities.
6.8 SLIPPING
Any leaks in the areas surrounding the appliance may cause personnel to slip.
Check that there are no leaks and keep these areas clean at all times.
6.9 TRIPPING
Generally untidy deposits of material may consitute a tripping hazard and a total or partial obstruction
of emergency exit routes.
Ensure that operating and transit areas and emergency exit routes are free from obstacles in
compliance with current legislation.
6.10 CIRCUIT FAULTS
Owing to potential faults, safety circuits may become less effective, which results in lower safety levels.
You should check the operational condition of the appliance devices regularly.
6.11 WARNING LABELS (where applicabler)
The appliance is fi tted with danger, warning and instruction labels, in accordance with the standards
that apply to graphic symbols used on systems and plants.
The signs are located in clearly visible positions.
Attention
The warning plates present on the appliance must not be removed.
The user is responsible for replacing warning signs that, owing to wear, become unreadable.
6.12 RISK OF EXPLOSION
Do not store products that contain combustible gaseous propellants and explosive substances inside
the appliance.
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6.13 COOLANTS (where applicable)
REFRIGERANT DESCRIPTION
The refrigerant R290 is a gas that is compatible with the environment, but
highly fl ammable.
Pay close attention during transport, installation and that thedestruction not to
damage the refrigerant pipelines.
IN THE EVENT OF DAMAGE:
Keep fl ames or sources of ignition away from the appliance. Properly ventilate
the premises for a few minutes. Switch the appliance off and pull out the
power plug. Inform customer support service. The more coolant contained in
an appliance, the larger the premises in which the appliance is installed must
be. In premises that are too small, a fl ammable mixture of air and gas may
form if there is a gas leak. The volume of the room where the appliance
is installed must be at least 19 m³ for each cooling system present in
the room.
WARNING
Maintenance must be performed by qualifi ed personnel that has been to work
with fl ammable refrigerants.
The refrigerant R600a is a gas that is compatible with the environment, but
highly fl ammable.
Pay close attention during transport, installation and that thedestruction not to
damage the refrigerant pipelines.
IN THE EVENT OF DAMAGE:
Keep fl ames or sources of ignition away from the appliance. Properly ventilate
the premises for a few minutes. Switch the appliance off and pull out the
power plug. Inform customer support service. The more coolant contained in
an appliance, the larger the premises in which the appliance is installed must
be. In premises that are too small, a fl ammable mixture of air and gas may
form if there is a gas leak. The volume of the room where the appliance
is installed must be at least 17 m³ for each cooling system present in
the room.
WARNING
Maintenance must be performed by qualifi ed personnel that has been to work
with fl ammable refrigerants.
EN
The refrigerant R744 is a gas that is compatible with the environment.
Pay close attention during transport, installation and that thedestruction not to
damage the refrigerant pipelines.
IN THE EVENT OF DAMAGE:
Keep away from the fl ame or ignition sources. Properly ventilate the premises
for a few minutes. Switch the appliance off and pull out the power plug. Inform
customer support service.
WARNING
The refrigerant system is High Pressure.
Do not tamper with the system, but call a
specialised and qualifi ed technician before disassembly.
Maintenance must be performed exclusively by
qualifi ed staff.
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7. DISPOSAL OF WASTE MATERIAL
During normal operation, the appliance does not generate any environmental contamination. At the
end of its life cycle, or if it is necessary to proceed to permanent decommissioning, we recommend
following the procedures below:
DISPOSAL (User)
The symbol, applied to either the product or its packaging, indicates that the product should not be
considered as normal domestic waste, but should be taken to a waste collection point for the recycling
of electrical and electronic appliances. The correct disposal of this product helps to prevent potential
negative consequences that might derive from inadequate product disposal. For detailed information
about recycling this product, contact your council, your local waste collection service or the store where
you purchased the product.
PROCEDURE FOR DISPOSAL and RECYCLING AT THE END OF APPLIANCE
LIFE SPAN
(Authorised Bodies)
• Switch off the equipment and unplug the power supply cable.
• Remove the lamps (if installed). These should be disposed of separately.
• Remove the power units and the electronic cards. These should be disposed of separately.
• Remove all the independent parts (grids, casings, profi les, etc.) and group them according to
shared features in order to access the heat exchangers, pipes, cables, etc. and be careful not to
damage the cooling circuit.
• Remove all mobile parts (doors, sliding doors, glass parts, etc.) and group the various materials
according to their features.
• Check the type of coolant on the plate fi tted inside the cabinet; empty out the coolant and dispose
of it through authorised waste centres
• Disconnect the evaporator, condenser, compressor, pipes and fans. These are made of copper,
aluminum, steel and plastic and should therefore disposed of separately.
• 8. On removal of all guards and the various components from the frame, separate the different
types of material making up the appliance (plastic, sheet steel, polyurethane, copper, etc) and
collect them separately.
All recyclable materials and waste should be processed and recycled by professionals, in compliance
with the laws in the country in question.
The company responsible for recycling the materials should be registered and certifi ed as a waste
disposal service in accordance with the country in question
Attention
Illegal disposal of the product by the owner will result in administrative sanctions as required by current laws.
Disposal of the product should comply with current laws on the disposal of coolant liquids
and mineral oils.
Important
If the crossed wheelie bin sign is not present on the appliance, it means that the disposal of the
product is not the manufacturer's responsibility. In this case, the Regulations regarding the disposal
of waste in force are valid.
Additional information
Further information on the disposal of liquid coolant, oils and other substances is available on the
safety data sheet corresponding to the substance itself.
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8. INSTALLATION
This manual supplies the information necessary for correct unpacking, procedures for
positioning and connection to mains electricity.
8.1 STORAGE and UNPACKING
The appliance, with or without the packaging, should be carefully stored inside warehouses or in areas
away from the elements and direct sunlight, at a temperature between 00 and +40 °C.
The appliance should only be moved by qualifi ed personnel operating forklift trucks, the power of which
should be suited to handling the weight of the product: when performing this task,
the appliance MUST be placed on the special pallet supplied.
Unpack the appliance by removing the screws fi xing it to the pallet.
All packaging materials are recyclable and should be disposed of in accordance with local regulations.
Please destroy "plastic" bags to prevent them from becoming hazardous to children (suffocation).
8.2 INSTALLATION - POSITIONING - ENVIRONMENTAL CONDITIONS
Attention
Suitable for installation in a dry, well ventilated room. There should be a good air fl ow around the
compressor and condensing unit. Therefore the area around the unit should not be obstructed by
boxes or other objects.
Position the appliance away from heat sources (radiators, stoves of all types, etc.) and away from
the effects of continuous currents of air (e.g. caused by fans, air conditioning vents, etc.). If it is
unavoidable to install near a heat source, use a suitable insulating plate,
Also avoid exposure to direct sunlight; all of this causes the temperature inside the refrigerated
compartment to rise with negative consequences on operation and energy consumption. Do not use
the appliance outdoors and do not leave it exposed to rain.
8.3 ELECTRICAL CONNECTION
Attention
Check that the network voltage matches the one displayed on the identifi cation plate of the
appliance, and that the required power is adequate.
Check on the socket that the power supply voltage provides rated voltage (±10%) when you start
up the compressor.
The plug should be directly connected to the electrical socket. It is forbidden to connect the plug to
the socket by means of multiple socket extensions or adaptors.
The plant power supply socket must be fi tted with a disconnection device from the mains electricity
(dimensioned to the load and in compliance with Standards in force), which guarantees complete
disconnection in category III (3) over-voltage conditions and therefore protects the circuits against
earth faults, overloads and short circuits.
Do not route the electricity cable in passageways.
Attention
Earthing is necessary and mandatory by law.
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9. ROUTINE
The Staff in charge of the appliance must control and respect the expiry dates for maintenance, given in the table
below, calling the authorised Technical After-sales assistance when indicated.
OPERATION FREQUENCY
Cleaning the external surfaces Depending upon Use and Necessity
Cleaning the accessible internal parts
(without the use of tools)
Control power supply cable,
plugs and/or electric sockets
Check integrity of sealing gaskets Monthly
Cleaning the defrosting water water collection
tray
Condenser cleaning Monthly
Check the compressor oil level
(whenever present)
Air tank draining
(whenever present)
Depending upon Use and Necessity
Monthly
Every 6 months
Every 6 months
Depending upon use and necessity
Every 6 months
Every 6 months
Every 6 months
MAINTENANCE
EXTRAORDINARY
X
X
X
X
X
X
X
X
AUTHORISED
PERSONNEL
User
User
User
User
Technical
Assistance
Technical
Assistance
Technical
Assistance
Technical
Assistance
Check pneumatic connections
(whenever present)
Check the integrity of chiller system piping Every 6 months
Inspect cables and internal power connections Every 6 months
Cleaning condensate drying sponges
(whenever present)
Lamp / LED replacement (if present)
Control panel replacement (ECU - thermal switch - etc.)
Power cable, plug and/or socket replacement
Every 6 months
Every 6 months
Attention
After all maintenance it is mandatory to perform all electric safety tests in agreement with the IEC
EN 50106 Standard.
X
X
X
X
X
X
X
Technical
Assistance
Technical
Assistance
Technical
Assistance
Technical
Assistance
Technical
Assistance
Technical
Assistance
Technical
Assistance
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10. FAILURE - TECHNICAL SUPPORT
If the appliance is not working properly or stops working, before contacting the Customer support centre, check
the following:
FAULT CAUSE SOLUTION AUTHORISED
The appliance
is not working
The internal
temperature
is not low
enough
The compressor does not
start-up or
operates
for a few moments
Blown protective fuse Previously fi nd the cause of the intervention
The master switch is open Close the master switch. User
The plug is not inserted Insert the plug. User
Electric black-out If the black-out should be prolonged,
Evaporator/s obstructed completely by ice
The wrong temperature has
been set on the electronic
control board
The appliance is affected by
draughts or is exposed to
direct or refl ected sunlight
Insuffi cient cooling air fl ow
from
air condenser
Internal fans at standstill
or with fans damage
Internal ventilation is too high Contact the Technical Assistance service Technical
Low electronic control board
effi ciency
air condenser
clogged with dust or dirt
Insuffi cient refrigerant
load in the cooling system
Electrical power shortage to
appliance
The power supply voltage is
too low
Set temperature too high If the set temperature is higher than that of the air in the
The pressure switch (if any)
was activated at maximum
pressure
of the switch, and then re-introduce the new fuse.
transfer the product into an appropriate cold storage container.
Carry out an additional defrosting cycle. User
Set the appropriate temperature. User
Remove any excessive draughts and prevent any direct or
refl ected sunlight.
Remove anything that may affect air fl ow inside the con-
densing unit (paper sheets, cardboard, grids with an insuffi cient number of holes, etc.).
Contact the Technical Assistance service Technical
Contact the Technical Assistance service
Replace the electronic control board.
The control unit must only be replaced with an original
replacement from ISA, if specifi cally made for R290
refrigerant.
Replace the temperature probes only after checking which of
the two is not operating effi ciently.
Contact the Technical Assistance service.
Clean the condensing unit thoroughly.
Contact the Technical Assistance service
Find the cause behind the lower amounts of coolant and
eliminate it. Top up the coolant. If necessary, empty the
system before topping up.
Check if there is a power cut.
Close the various switches on the power supply line.
Check that the network voltage of the power supply cable is
220V +/- 10%.
display area, the compressor does not activate itself.
Set a more suitable temperature if the current value is not
low enough
Contact the Technical Assistance service.
Check the reasons why the pressure switch is operating
at maximum pressure levels, such as: air condensing unit
blocked, condensing unit fan stopped, ambient temperature
too high, pressure switch broken.
PERSONNEL
User
User
User
User
Assistance
Assistance
Technical
Assistance
Technical
Assistance
Technical
Assistance
User
User
User
Technical
Assistance
EN
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10.1 ALARMS LOG (where applicable)
ALARM DESCRIPTION OUTPUTS AUTHORISED
P1
E0
P2
E1
HA
HI
LA
LO
EA
IA
CB
Broken thermostat probe.
Compressor output according to
"CON" and "COFF" parameters
Broken evaporator probe.
Set time for defrosting
High temperature alarm The alarm stops automatically on reaching the temperature set.
Low temperature alarm The alarm stops automatically on reaching the temperature set.
External alarm The external alarm stops after the digital infeed is deactivated.
The alarm starts a few seconds after the probe breaks down; it stops a
few seconds after the probe starts working again properly.
We recommend checking the probe connections before replacing it.
Contact the Technical Assistance service.
The alarm starts a few seconds after the probe breaks down; it stops a
few seconds after the probe starts working again properly.
We recommend checking the probe connections before replacing it.
Contact the Technical Assistance service.
Check programming.
Contact the Technical Assistance service.
Check programming.
Contact the Technical Assistance service.
It is restored automatically.
The alarm is linked to the intervention of the pressure switch and/or
the compressor circuit breaker, when present.
Contact the Technical Assistance service.
PERSONNEL
Technical
Assistance
Technical
Assistance
Technical
Assistance
Technical
Assistance
Technical
Assistance
ETc
RTF
EE
EF
Real time clock is broken Reset the clock.
If the alarm does not stop, replace the clock.
Contact the Technical Assistance service.
Machine parameter error The instrument is damaged. It must be replaced.
Contact the Technical Assistance service.
Operating parameters error The instrument is damaged. It must be replaced.
Contact the Technical Assistance service.
Technical
Assistance
Technical
Assistance
Technical
Assistance
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11. TECHNICAL SPECIFICATIONS
130
1230
250
135
190
145
1305
400
945
TECHNICAL FEATURES
External dimensions (lxdxh)
External dimensions (lxdxh)
Refrigeration
Defrosting
Climate class N°
Environmental conditions °C / % RH
Product class
Safety class (IEC EN 60335-2-89) N° / °C (environment)
Refrigerant (GWP)
Power supply V / ph / Hz
Electrical absorption (normal conditions) W / A
Electrical absorption (in defrosting) W / A
Weight (net) Kg
mm
mm
250
135
190
145
1365
400
130
RV TN
1280 x 1230 x 1305
1280 x 1230 x 1365
Ventilated
Off Cycle
3
25 / 60
M2
5 / 43 ± 2°C
R404A (3784)
230 / 1 / 50
1200 / 6
260 / 1.1
175
1230
945
EN
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11. TECHNICAL SPECIFICATIONS
130 SMALL
1120
250
135
190
145
1305
External dimensions (lxdxh)
External dimensions (lxdxh)
Refrigeration
Defrosting
Climate class Nr.
Environmental conditions °C / % RH
Product class
Safety class (CEI EN 60335-2-89) N° / °C (environment)
Refrigerant (GWP)
Power supply V / ph / Hz
Electrical absorption (normal conditions) W / A
Electrical absorption (in defrosting) W / A
Weight (net) kg
400
835
mm
mm
1120
250
135
190
145
1365
400
835
130 SMALL
RV TN
1280 x 1120 x 1305
1280 x 1120 x 1365
Ventilated
Off Cycle
3
25 / 60
M2
5 / 43 ± 2°C
R404A (3784) R290 R744
230 / 1 / 50
1200 / 6 540 / 2.5 690 / 3.1
260 / 1.1 10 / 0.08 10 / 0.08
167
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11. TECHNICAL SPECIFICATIONS
130 TW
1560
200
300
580
1305
900
700
External dimensions (lxdxh)
External dimensions (lxdxh)
Refrigeration
Defrosting
Climate class Nr.
Environmental conditions °C / % RH
Product class
Safety class (CEI EN 60335-2-89) N° / °C (environment)
Refrigerant (GWP)
Power supply V / ph / Hz
Electrical absorption (normal conditions) W / A
Electrical absorption (in defrosting) W / A
Weight (net) kg
580
135
140
203
mm
mm
200
300
580
1365
960
760
130 TW
RV TN
1280 x 1560 x 1305
1280 x 1560 x 1365
Ventilated
Off Cycle
3
25 / 60
M2
5 / 43 ± 2°C
R404A (3784) R290
230 / 1 / 50
1500 / 7 1000 / 6
460 / 2 30 / 0.1
222
1560
580
135
140
203
EN
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11. TECHNICAL SPECIFICATIONS
130 SELFTW
1560
1331
930
580
900
700
580
990
TECHNICAL FEATURES
External dimensions (lxdxh)
External dimensions (lxdxh)
Refrigeration
Defrosting
Climate class N°
Environmental conditions °C / % RH
Product class
Safety class (IEC EN 60335-2-89) N° / °C (environment)
Refrigerant
GWP
Power supply V / ph / Hz
Electrical absorption (normal conditions) W / A
Electrical absorption (in defrosting) W / A
Weight (net) Kg
mm
mm
960
760
130 TW SELF
RV TN
1280 x 1560 x 930
1280 x 1560 x 990
Ventilated
Off Cycle
3
25 / 60
M2
5 / 43 ± 2°C
R404A
3784
230 / 1 / 50
1350 / 6
480 / 2
192
580
1560
1331
580
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EN
11.1 POSITIONING
Warning
The equipment is set-up with four (4) levelling base supports (adjustable height).
Level the appliance.
The appliance features four (4) swiveling wheels (2 with brake) to
make it easier to move around.
After positioning it is necessary to stabilise the appliance to the fl oor .
EN
11.2 LOAD LIMITS
Attention
It is fundamental not to exceed the load limits indicated in order not to alter the correct air circulation
and thus prevent a high product temperature.
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12. CONTROL PANEL
Attention
The electronic control board is installed already
programmed. Any changes to the control board
settings can be carried out exclusively by qualifi ed
technical personnel.
At switch-on, the instrument performs a LAMP
TEST for a few seconds. The display and the LEDs
fl ash to check the integrity and good operation of
the same.
START-UP
Plug the appliance in at the socket supplied by the
customer, ensuring that the plug is fi tted with an
earth contact and that there are no multiple sockets
connected to it.
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12.1 USER INTERFACE
UP
Scrolls menu options
Increases the values
Activates manual defrosting
DOWN
Scrolls menu options
Decreases the values
STAND-BY (ESC)
Goes back up one level with respect to current menu
Confi rms parameter value
Activates the Stand-by function
SET (ENTER)
Accesses the Set-point
Accesses the programming menu
Confi rms input commands
Displays any alarms (if present)
KEYS
LED
COMPRESSOR or RELAY 1
ON for compressor on
Flashing for delay, protection or blocked activation.
ADDITIONAL
ON for defrosting in progress
Flashing for manual activation
ALARM
ON for active alarm
Flashing for silenced alarm
FANS
ON for operating fans
EN
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12.1 USER INTERFACE
Press the SET (ENTER) button and release immediately.
The “Set” label will appear.
To view the Set point value, press the SET (ENTER) button again.
The Set-point value will appear on the display.
To change the Set point value, press the UP and DOWNbuttons within 15 seconds.
To confi rm the new Set point value, press the SET (ENTER) button again.
No operation on the keyboard for more than 15 seconds (time-out) or pressing the
STAND-BY (ESC) key once, the last value shown on the display is confi rmed and it goes
back to the previous display.
SET BUTTON
CHECK UP
The alarm condition is always signalled via the buzzer (if present) and by the LED next
to the alarm icon.
Any alarms deriving from broken evaporator probes (probe 1) appear directly on the
instrument display and are indicated by E1
Any alarms deriving from broken evaporator probes (probe 2) appear directly on the
display and are indicated by E2.
MANUAL ACTIVATION OF THE DEFROSTING CYCLE
The defrosting cycle is activated manually by holding down the UP key for 5 seconds.
If the conditions for defrosting are not present (e.g. the temperature of the evaporator
probe is higher than the defrosting end temperature), the display will fl ash three (3)
times to indicate that the operation will not be carried out.
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EN
12.1 USER INTERFACE
Not applicable.
SBR
To start a manual defrosting cycle, press for at least 2 seconds.
Attention
The electronic control board is installed
already programmed.
Any changes to the control board settings
can be carried out exclusively by qualifi
ed technical personnel.
KEYS - SINGLE PRESS
To display or modify the set-point.
Press and release the key to display the temperature.
To go back to viewing the temperature set, wait 5 seconds or press the key again
In programming mode, selects a parameter or confi rms a value.
UP
In programming mode, scrolls the codes of the parameters or increases its value.
Activates the Continuous Cycle function when present.
MAXIMUM TEMPERATURE DISPLAY
Press and release the key (the “Hi” message will be displayed followed by the maximum
temperature reached).
Press the key or wait 5 seconds to go back to displaying normal temperature.
DOWN
In programming mode, scrolls the codes of the parameters or decreases its value.
Activates the High and Low Humidity function when present.
MINIMUM TEMPERATURE DISPLAY
Press and release the key (the “Lo” message will be displayed followed by the minimum
temperature reached).
Press the key or wait 5 seconds to go back to displaying normal temperature.
Switches the instrument on or off.
Pressed for at least 2 seconds, it displays “OFF”
In this confi guration the loads and all adjustments are disabled; to take the instrument
back to ON press again for at least 2 seconds.
EN
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12.1 USER INTERFACE
+
Attention
The electronic control board is installed
already programmed.
Any changes to the control board settings
can be carried out exclusively by qualifi
ed technical personnel.
KEYS - COMBINED PRESSING
To block and release the keyboard.
LOCK KEYBOARD
Hold both keys down for a few seconds until fl ashing “POF” appears.
The keyboard is blocked. Only the set-point of the maximum and minimum temperature can be displayed.
“POF” appears if a key is pressed for more than 3 seconds.
+
+
UNLOCK KEYBOARD
Hold both keys down for a few seconds until fl ashing “POn” appears.
To enter programming mode.
To exit programming mode.
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EN
12.1 USER INTERFACE
LED MODE MEANING
Attention
The electronic control board is installed
already programmed.
Any changes to the control board settings
can be carried out exclusively by qualifi
ed technical personnel.
On Compressor/s active
Flashing Delay with close start-ups
On Defrosting in progress
Flashing Dripping in progress
On If the temperature alarm has occurred
On Continuous cycle in progress
On Enery saving in progress
On Unit of measurement
Flashing Programming
On Fan/s ON
Flashing Fan/s OFF
EN
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13. CLEANING
The materials listed below must be cleaned as follows:
• STAINLESS STEEL: Use only lukewarm water and mild detergents, rinse well and dry with a soft cloth.
• ACRYLIC OR POLYCARBONATE: Wash with lukewarm water, using a soft cloth or a chamois cloth. Do not use
detergents, alcohol, acetone or solvents. Do not use abrasive cloths or sponges.
• CURVED GLASS: Only use products specifi cally designed for cleaning glass. We do not recommend using tap
water, which may leave calcium deposits on the surface of the glass.
13.1 INTERNAL
• Remove the product contained in the cabinet and put it immediately in a relevant cold storage container in order
to guarantee correct preservation..
• Turn the appliance off.
• Wait at least 4 to 6 hours, until the ice on the evaporator has melted completely, before proceeding with cleaning
operations. We recommend waiting until the following day to make sure the product has been completely
defrosted.
• Wash the bottom of the tank and the sides with a mild detergent, warm water and a cloth or a non-abrasive
sponge. Rinse well and dry using a cloth.
• If the cabinet is connected with a ground discharge, pour some warm water with a sanitising solution suited for
the intended use. In terms of quantity, the amount of solution used should be enough to remove any product
residues and disinfect the whole drainage channel.
• If the appliance is not connected to a drain channelled into the ground, follow the procedure described in the
previous paragraph. The water used to rinse the solution should be collected in the tray located inside the base
of the cabinet. Clean and disinfect the tray.
13.2 CONDENSING UNIT
• Remove the screws from the protective grid.
• Remove the protective grid. c) Clean the condenser unit with a vacuum brush.
Attention
Clean the CONDENSER using a relevant brush
with soft bristles; carry out the operation, paying
attention not to bend the condenser foils.
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EN
14. ATTACHMENTS
N° Code Page
1 Declaration of Conformity 30
2 Declaration of Conformity 412100223200 31
3 Wiring diagram 412100613100 32
4 Wiring diagram 412100748000 33
EN
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Attachment 1 - DECLARATION OF CONFORMITY
DECLARATION OF CONFORMITY
We: ISA S.r.l.
Via del Lavoro, 5 - 06083 - Bastia Umbra (PG)
declare under our own responsibility, that the product:
Product: ALFA
Serial number: .....
To which this declaration refers, is in compliance with e following:
MACHINERY SAFETY
General electric safety Standard EN 60335-1: 2012-01+Modifi cation A11. Particular requirements for commercial refrigerating appli-
EN 60335-2-89/Ed.2010. Standard for Measuring Electromagnetic Fields (EMF) of Electrical Appliances EN 62233:2008, Directive
ances
2006/95/EC of the European Parliament and the Council of 12th December 2006 on the harmonisation of the Laws of Member States
relating to electrical equipment for use within certain voltage limits EN 62471/Ed.2009 Photo-biologic safety of lamps and lamp systems
ELECTROMAGNETIC COMPATIBILITY (EMC)
On the basis of the construction evaluations and test results the equipment under test is in compliance with the following standards CEI
EN 55014-1 (CEI 110-1) “Electromagnetic compatibility - Requirements for household appliances, electric tools and similar apparatus” .
Part 1: Emission “Fifth Edition Technical File 9159 (January 2008) with amendment A1 T echnical File 10790 (October 2010) and am endment A2 Technical File 11786 (February 2012) and CEI EN 55014-2 (CEI 210-47) “Electromagnetic compatibility - Requirements for
household appliances, electric tools and similar apparatus. Part 2: Immunity - Product family standard” First Edition Technical File 4788
- (October 1998) with amendments A1 Technical File 6577 (August 2002) and amendment A2 Technical File 9942 (August 2009), CEI
EN 61000-3-2 (CEI 110-31) “Electromagnetic Compatibility (EMC) - Part 3-2: Limits for harmonic current emissions (equipment input
current 16A per phase).” Technical File 8802 (April 2007) IV Edition with amendment A1/A2 Technical File 11514 (September 2011)
and CEI EN 61000-3-3 (CEI 210-96) “Electromagnetic Compatibility (EMC) - Part 3: Limits Section 3: Limitation of voltage fl uctuations
and fl icker in low-voltage supply systems for equipment with rated current 16A.” II Edition Technical File 13414 (March 2014).
PRESSURE EQUIPMENT DIRECTIVE (PED) 97/23/EC
As the equipment falls into a class lower than I, it is excluded from the PED’s application fi eld (art.1 par.3.6)
FOODSTUFF COMPATIBILITY
Regulation (CE) N.1935/2004 of the European Parliament and of the Council dated 27 October 2004 Regulation (CE) N.2023/2006 of
the Council dated 22 December, Directive 2008/39/CE of the Council dated 6 March 2008 Directive 2007/19/CE of the Council dated 30
March 2007 Directive 2005/79/CE of the Council dated 18 November 2005 Directive 2004/19/CE of the Council dated 10 March 2004
Directive 2004/1/CE of the Council dated 6 January 2004 Regulation (UE) 10/2011 of the Council dated 14 January 2011
ROHS and WEEE
Directive 2011/95/EC of the European Parliament and of the Council of 8th June 2011
Directive 2002/96/EC of the European Parliament and of the Council of 27th January 2003
REACH
Regulation (CE) n. 1907/2006 of the European parliament and council dated 18 December 2006 concerning the recording, evaluation,
authorisation and restriction of the chemical substances (REACH), which establishes a European Agency regarding chemical substances,
which modifi es the Directive 1999/45/CE and that repeals the Regulation (CEE) n. 793/93 of the Council and the regulation (CE) n.
1488/94 of the Commission 91/155/CEE, 93/105/CE and 2000/21/CE
SUBSTANCES THAT REDUCE THE OZONE LAYER
Regulation (CE) N. 1005/2009 dated 16 September 2009 (Offi cial Journal (OJ) of the European Union 31/10/2009 L286)
According to the requirements set by Directives: 2006/95/EC, 2004/108/EC, 2006/42/EC, 97/23/EC
The person authorised to draw-up the Technical Folder is Mr. Minelli Maurizio (Technical Department Manager)
Via del Lavoro 5 - 06083 Bastia Umbra (PG)
Bastia Umbra: 05 / 08 / 2015
(place and date of issue) Minelli Maurizio
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EN
Attachment 2 - WIRING DIAGRAM (412100223200)
EN
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CE Electronic control unit
R1 Relay pressure switch
S1 Temperature probe
S8 Pressure switch
S2 Defrosting probe
U1 Compressor
U2 Condenser fan
U3 Evaporator fan
Attachment 3 - WIRING DIAGRAM (412100613100)
BT1 Temperature probe
BT2 Defrosting probe
CE1 Electronic control board
RE1 Heating element
EV1 Condenser fan
EV2 Evaporator fan
FU1 Fuse
KA1 Relay compressor
KA4 Relay pressostat
CAN-BUS Can-bus
S7 Pressure switch
MS1 Comprerssor
XS1 Plug supply
T1 Transformer
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EN
BT1 Temperature probe
BT2 Defrosting probe
CE1 Electronic control board
RE1 Heating element
EV1 Condenser fan
EV2 Evaporator fan
Attachment 4 - WIRING DIAGRAM (412100748000)
KA4 Relay pressostat
CAN-BUS Can-bus
S7 Pressure switch
MS1 Compressor
XS1 Plug supply
T1 Transformer
EN
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