ISA Isetta 4 LX User manual

1
ISETTA
USE AND MAINTENANCE MANUAL
428000372237
EN
ISA S.r.l.
Via del Lavoro, 5
06083 Bastia Umbra - Perugia - Italy
Tel. [phone] - Fax [phone]
www.isaitaly.com
ISETTA
LX
ST
LX
4 RS TB TP
6R RS TB TP
7R RS TB TP
9R RS TB TP
12R RS TB TP
ST
4 RS TB TP
6R RS TB TP
7R RS TB TP

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USE AND MAINTENANCE MANUAL
428000372237
EN
1. NOTES / IMPORTANT NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
1.2 Manufacturer's contact details. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2. SAFETY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2.1 Staff training. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2.2 Safety devices applied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2.2.1 Safety devices included . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2.2.2 Fixed protective devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2.2.3 Disconnecting electrical power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.3 Residual risks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.3.1 Risk of contact with parts under stress . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.3.2 Fires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.3.3 Explosions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
2.3.4 Slipping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
2.3.5 Tripping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
2.3.6 Circuit faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
2.4 Warning signs (if any) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
2.5 Refrigerant R290 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3. DISPOSING OF EXHAUST MATERIALS . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4. INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1 Storage and unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.2 Installation, positioning and ambient conditions . . . . . . . . . . . . . . . . . . . . . 11
4.3 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5. TECHNICAL SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.1 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.2 Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.3 Load limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.4 Optional features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6. EQUIPMENT DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.1 Composition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.2 Identi!cation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7. CONTROL PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7.1 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7.2 User Interface ELIWELL EW974. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.3 User Interface DIXELL XR44CX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
8. ROUTINE MAINTENANCE and REGULAR CHECKS . . . . . . . . . . . . . . . . . . 20
8.1 Cleaning the inside the cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
8.2 Access condensing unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
8.3 Cleanings condensing unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
8.4 External cleaning operations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
9. MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
10. TECHNICAL ASSISTANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
10.1 Faults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
10.2 List of alarms on the electronic controller . . . . . . . . . . . . . . . . . . . . . . . . .24
11. GENERALWARRANTY TERMS AND CONDITIONS . . . . . . . . . . . . . . . . . 24
12. ANNEXES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

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ISETTA
USE AND MAINTENANCE MANUAL
428000372237
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.
Caution / Danger
Important information
Tasks that must be carried out by two persons
Information
Wear protective clothing
Read the instruction manual
Required maintenance or operations that must be performed by
qualified personnel or by a technical assistance center
Danger: Electrical parts under voltage
Visual check
Notes / Important Notes

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ISETTA
USE AND MAINTENANCE MANUAL
428000372237
EN
1. 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 certi!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
made available near the equipment for consultation at any time. If lost or destroyed, you
can request a copy of this manual from ISA S.r.l. by specifying the exact model, serial
number and year of manufacture. The manual re"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 unquali!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 modi!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 quali!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.
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 equipment is operating correctly in order to achieve
maximum performance.

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USE AND MAINTENANCE MANUAL
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EN
1.1 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 the equipment items 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 equipment's initial appearance and
functions over time..
Note
In order not to compromise the functionality and safety of the equipment, installation and maintenance
operations that are especially complex have not been documented in this manual and are carried out
by specialised technicians of the manufacturer.
The Use and Maintenance Manual contains the necessary information for understanding
how the equipment 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 equipment, the working
environment should comply with current health and safety standards.
The safety requirements, indications, standards and notes illustrated in the various chapters
of this 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. To ensure the operator's safety,
the devices of the equipment should be kept in constant working order. This manual is intended
to illustrate the use and maintenance of the equipment. The operator has a responsibility and
duty to carefully observe the instructions contained within it. The safety standards reported
in this document are intended for trained, authorised personnel responsible for:
- transport-
- installation
- operations
- management
- maintenance
- cleaning, decommissioning, and disposal which are the only authorised use of the equipment
discussed in this manual
Attention
Reading this manual, albeit in full, is no substitute for adequate user experience. Therefore it should
only be considered a useful reminder of technical features and the main operations to perform.
Warning
The installers and users are required to read and understand all the instructions contained herein
before they carry out any operation on the equipment.
1.2 Manufacturer's contact details
ISA S.r.l.
Via del Lavoro, 5
06083 - Bastia Umbra - Perugia - Italy
Tel. [phone]
Fax [phone]
www.isaitaly.com

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USE AND MAINTENANCE MANUAL
428000372237
EN
2. SAFETY
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 equipment 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 equipment.
They should also read this manual in its entirely.
Maintenance work should be conducted by quali•ed personnel after the equipment has been
prepared adequately.
Danger
Unauthorised tampering with or replacement of one or more parts of the equipment, the use of ac-
cessories that change its performance, and the use o spare parts other than those recommended
may cause the risk of injury.
Danger
Before doing any type of work, the equipment must always be disconnected from the power supply.
Any work on electric parts or cooling system components should only be carried out by
trained personnel in compliance with current laws.
2.1 Staff training
The buyer is responsible for ensuring personnel who will use the equipment and the
maintenance technical staff are instructed and trained adequately.
The manufacturer is available for advice, clari•cations, etc. so that the operator and
technical staff can use the equipment correctly.
Attention
The equipment is designed for industrial use.
2.2 Safety devices applied
The appliance is equipped with the following safety devices:
2.2.1 SAFETY DEVICES INCLUDED
2.2.2 FIXED PROTECTIVE DEVICES
2.2.3 DISCONNECTING ELECTRICAL POWER SUPPLY
2.2.1 Safety devices included
Devices whose operation prevents risks from occurring when using the equipment (e.g.
fuses, pressure switches, protective devices, thermal switches, etc.).
2.2.2 Fixed protective devices
Fixed protective devices consist of •xed perimeter shields, which are used to prevent
external parts from entering the equipment.
Danger
It is absolutely forbidden to restart the equipment after it has been serviced, without •rst properly
restoring the panelling.
Attention
You should check the integrity of •xed panels and corresponding •xings to the frame, focusing in
particular on the protective panels.

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USE AND MAINTENANCE MANUAL
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2.2.3 Disconnecting electrical power supply
Before conducting any maintenance works on the equipment or part of it, it is necessary to
section the power supply that powers it.
Danger
We therefore remind you, if maintenance is carried out and the operator cannot prevent bystanders
from accidentally closing the circuit, to fully disconnect the equipment from the electric network.
2.3 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 damage
to the equipment as mentioned in the previous paragraphs.
Attention
Periodically check that all the safety devices are operating correctly.
Do not disassemble the !xed protective devices.
Do not introduce foreign objects or tools in the area of work.
Although the equipment is !tted with the aforementioned safety devices, there are still
some risks that cannot be eliminated, but reduced via corrective actions by the !nal
integrator and correct operational procedures.
Below is a summary of the remaining risks associated with the equipment during:
- Normal operation
- Adjustments and tweaking
- Maintenance
- Cleaning
2.3.1 Risk of contact with live parts
Risk of breaking or damaging the electrical components of the equipment, 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 hooking up the equipment to its power supply, check that the short-circuit voltage in the place
of installation is not higher than the one indicated on the protective switches on the electrical panel. If
it is, the user is required to have appropriate limiting devices installed.
It is strictly forbidden to conduct any electrical modi!cation, in order to prevent additional unforeseen
hazards and risks.
2.3.2 Fires
Danger
In the event of a !re, immediately disconnect the master switch from the main power supply line.

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USE AND MAINTENANCE MANUAL
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2.3.3 Explosions
The equipment must not be located in an area classi•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 !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
!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.
2.3.4 Slipping
Any leaks in the areas surrounding the equipment may cause personnel to slip.
Check that there are no leaks and keep these areas clean at all times.
2.3.5 Tripping
Generally untidy deposits of material may constitute a tripping hazard and a total or partial
obstruction of emergency exit routes.
You should ensure that operating and transit areas and emergency exit routes are free from
obstacles in compliance with current legislation.
2.3.6 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 equipment's safety devices installed
regularly.
2.4 Warning signs (if any)
Depending on the various types of risks identi•ed, warning labels signalling a danger,
inviting to caution, or pointing to a mandatory requirement are •tted on the equipment, in
accordance with the applicable legislation which establishes the graphic symbols that are to
be used on plants.
The signs are located in clearly visible positions.
Attention
It is absolutely forbidden to remove the warning signs •tted on the equipment.
The user is responsible for replacing warning signs that, owing to wear, become unreadable.

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USE AND MAINTENANCE MANUAL
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2.5 Refrigerant R290
This equipment contains a small amount of R290 refrigerant, an environmentally
compatible gas, but one that is highly flammable. Be very carefully during transport,
installation of the equipment and disposal to not damage the refrigerant circuit pipes.
Maintenance must be performed by qualified personnel that has been to work with
flammable refrigerants.
IN THE EVENT OF DAMAGE:
Keep the equipment far from !ames or sources of ignition. Ventilate the room for several
minutes. Turn the unit off, pull the plug. Inform the customer service department. The more
refrigerant containing an appliance, the greater must be the environment in which there is
the unit. In areas too small, in the event of leakage can form a !ammable mixture of air
and gas. The volume of the room where the equipment is located must be at least
19 m³ for each chiller system present.
USE:
Never use electrical appliances inside the appliance. Do not damage the refrigerant circuit.
Do not use mechanical devices or other means to accelerate the defrosting process other
than those recommended by the manufacturer. Keep the ventilation openings in the
equipment housing or structure free of obstructions.
DANGER OF EXPLOSION:
Do not store products containing combustible gas propellants and explosive substances
inside the equipment.
INSTALLATION OF THE APPLIANCE:
Is suitable for installation in a dry, well ventilated room. The installation area must not be
exposed to direct sunlight and must not be near heat sources such as stoves, heaters, etc.
If installation next to a heat source is unavoidable, use a suitable insulating panel.

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USE AND MAINTENANCE MANUAL
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3. DISPOSING OF EXHAUST MATERIALS
During normal operation, the equipment 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.
PROCEDURES FOR THE DISPOSAL and RECYCLING OF THE EQUIPMENT AT THE END
OF ITS LIFETIME (Authorised Institutions)
1. Turn off the equipment and unplug it.
2. Remove the lamps (if installed). These should be disposed of separately.
3. Remove the power units and the electronic cards. These should be disposed of separately.
4. Remove all the independent parts (grids, casings, pro!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.
5. Remove all mobile parts (doors, sliding doors, glass parts, etc.) and group the various
materials according to their features.
6. Check the type of coolant on the label located inside the counter. Extract the refrigerant
and have it disposed of by authorised centres.
7. Disconnect the evaporator, condenser, compressor, pipes and fans. These are made of
copper, aluminium, steel and plastic and should therefore be disposed of separately.
8. When you have removed all the housings and the various components of the shell,
proceed to separate the elements based on their type of material (plastic, sheets,
polyurethane, copper, etc.) and group them according to similarity.
All recyclable materials and waste should be processed and recycled by professionals, in
compliance with the laws in force in the country where the equipment is installed.
The company responsible for recycling the materials should be registered and certi!ed
as a waste disposal service in accordance with the laws in force in the country where the
equipment is installed.
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 equipment does not bear the barred trash-bin symbol, this means disposal of the product is
not responsibility of the manufacturer. If so, the current laws on waste disposal always apply.
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.