Mitsubishi Electric WIZARDX Service manual

MANUAL CODE: SAP CODE
IUM_WIZARDX_03_22_EN C010029464
WIZARDX/WIZARDX-G07
Air-handling units
EN
INSTALLATION, USE AND MAINTENANCE MANUAL
Italian is the original language. The other languages versions are translation of the original.
To ensure safe and correct use, carefully read this manual and make sure to understand all
the contained indications and information.

Before carrying out any operation on the machine,
you must carefully read this manual and make sure
you understand all the instructions and information given
Keep this manual in a known and easily accessible place
to refer to as necessary during the entire life-span of the
unit.
This manual was prepared by MEHITS S.p.A.: reproduction, even in part, is prohibited.
The original copy is kept on file by MEHITS S.p.A.
Any use of the manual other than for personal reference requires the prior authorisation of MEHITS S.p.A.
In the interest of improving the quality of its products, MEHITS S.p.A. reserves the right to modify, without notice, the
data and content of this Manual.
The information in this document may be modified without prior notice.
The reproduction and/or dissemination of this document, even in part, is prohibited without the
the written consent of MEHITS SpA.

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CONTENTS
1GENERAL PROVISIONS...........................................................................................................................................7
1.1 General information and safety........................................................................................................................ 7
1.1.1 Scope of the manual........................................................................................................................................ 7
1.1.2 Glossary and terminology ................................................................................................................................ 7
1.1.3 Attached documentation.................................................................................................................................. 8
1.1.4 Safety regulations............................................................................................................................................ 8
1.1.4.1 Proper and improper use.............................................................................................................................. 10
1.1.5 Precautions against residual risks ................................................................................................................. 11
1.1.6 Procedure for requesting support .................................................................................................................. 13
1.2 Designation.................................................................................................................................................... 14
1.3 GENERAL DESCRIPTION ............................................................................................................................ 16
1.3.1 General description........................................................................................................................................ 16
1.3.2 Unit configuration........................................................................................................................................... 16
1.3.3 Main machine components............................................................................................................................ 17
1.3.4 Operating limits of the machines.................................................................................................................... 20
1.3.5.1 Technical characteristics of machines with R410A refrigerant ......................................................................... 20
1.3.5.2 Technical characteristics of machines with R32 refrigerant.............................................................................. 21
1.3.6 Packaging of standard units........................................................................................................................... 22
1.3.7 Information on the packaging......................................................................................................................... 23
2TRANSPORT, STORAGE AND INSTALLATION ...................................................................................................24
2.1 Transport and handling instructions............................................................................................................... 24
2.1.1 Storage.......................................................................................................................................................... 24
2.1.2 Transport ....................................................................................................................................................... 25
2.1.3 Unloading and handling................................................................................................................................. 25
2.1.4 Receipt and inspection of the equipment....................................................................................................... 26
2.1.5 Handling......................................................................................................................................................... 29
2.2 Installation instructions................................................................................................................................... 32
2.2.1 Installation of the standard machine...............................................................................................................32
2.2.1.2 Minimum installation area for units with R32.................................................................................................... 33
2.2.2 Machine positioning....................................................................................................................................... 35
2.2.3 Installation clearances ................................................................................................................................... 39
2.2.4 Connection of the cooling circuit between WIZARDX and Mr. Slim unit ........................................................ 41
2.2.5 Hydraulic connection...................................................................................................................................... 44
2.2.6 Hydraulic circuit sizing ................................................................................................................................... 44
2.2.7 Hydraulic circuit connection........................................................................................................................... 45
2.2.8 Cleaning and filling the hydraulic circuits....................................................................................................... 46
2.2.9 Water quality.................................................................................................................................................. 46
2.2.10 Sizing and connection of the cooling circuits ................................................................................................. 48
2.2.11 Compressor lubricant oil top up ..................................................................................................................... 48
2.2.12 Safety valves and position and provisions of the drain piping........................................................................ 48
2.2.13 Electrical connections.................................................................................................................................... 48
2.2.14 Air connections ............................................................................................................................................. 52
2.2.15 Pressure drops on the air side of the ducts.................................................................................................... 54
2.2.16 Bms connection............................................................................................................................................. 54
3START-UP STAGES................................................................................................................................................54
3.1 Before starting the unit................................................................................................................................... 54
3.2 Machine start-up............................................................................................................................................ 58
3.2.1 Calibration and tuning procedures................................................................................................................. 58
3.2.2 Unit start-up................................................................................................................................................... 58
3.2.3 Adjustments and calibration........................................................................................................................... 59
4USE AND MAINTENANCE......................................................................................................................................59
4.1 Method of use................................................................................................................................................ 59
4.1.1 Description of controls ................................................................................................................................... 59
4.1.2. Prolonged shutdowns of the machine............................................................................................................ 60
4.1.3 Start-up after extended machine inactivity..................................................................................................... 60
4.2 Maintenance instructions............................................................................................................................... 61
4.2.1 General information........................................................................................................................................61
4.2.2 Scheduled maintenance .................................................................................................................................62
4.2.3 Table of general maintenance jobs.................................................................................................................62

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4.2.4 Extraordinary maintenance............................................................................................................................ 67
5OPTIONALS ............................................................................................................................................................75
6DISPOSAL OF THE UNIT........................................................................................................................................85
7FIRST DIAGNOSTICS.............................................................................................................................................85
7.1 What to do if................................................................................................................................................... 85
7.2 Alarm Log ...................................................................................................................................................... 85

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SYMBOLS:
A number of symbols are used to highlight some parts of the text that are of particular importance. These are described below.
CAUTION:
Safety information that warns users about potential sources of damage or danger to the user and/or
health and provides instructions on how to avoid them.
OBLIGATION:
Indicates that certain operations need to be carried out and/or appropriate behaviour adopted to
ensure the safety of the user and third parties and/or correct operation of the unit.
PROHIBITION:
Prohibition to perform certain movements or activities.
INFORMATION:
Messages sent and received relating to news or notions considered useful or essential for the user.

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1 GENERAL PROVISIONS
1.1 General information and safety
1.1.1 Scope of the manual
This manual, which is an integral part of the machine, has been produced by the manufacturer to provide the necessary information
to all those who are authorized to interact with the machine during its intended life.
The authorised individuals are as follows:
•buyers;
•system designers;
•freight forwarders;
•logistics operators;
•installers;
•experienced operator;
•specialist technician;
•users.
As well as adopting a code of good practice, the recipients of the manual must read the information withcare and apply itscrupulously.
Taking a little time to read this information can help avoid risks to the health and safety of persons as well as prevent financial losses.
The information was written by the manufacturer in the manufacturer's native language (Italian) and is referred to as the "ORIGINAL
INSTRUCTIONS". This information is also available in English as the "TRANSLATION OF THE ORIGINAL INSTRUCTIONS" and
can be translated into other languages to meet legislative and/or commercial requirements. The information is valid even if the
machine in your possession is not exactly the same as the one referred to.
Keep this manual in a known and easily accessible place to refer to as necessary.
The manufacturer reserves the right to modify the product without prior notice.
A number of symbols are used to highlight some parts of the text that are of particular importance. These are described below.
1.1.2 Glossary and terminology
There are some recurring terms in the manual which are described below in more detail.
Hazard: potential source of injury or damage to health.
Risk: combination of the probability and severity of an injury or health damage.
Trained individual: a person with levels of training, knowledge and experience that enable them to identify risks and avoid hazards.
Residual risk: isk that cannot be completely eliminated by the protective measures built in the machine.
Protective device: a device that reduces risks.
Mehits: Mitsubishi Electric Hydronics & IT Cooling System S.p.A, also owner of the Climaveneta and RC brands.
Buyer: the person responsible for making the purchase who must supervise the organisation and assignment of duties to ensure
that everything is done in compliance with the applicable laws.
Enthalpy: a function that can be defined as the sum of the internal energy and the product of pressure for the volume of fluid.
Installer: specialist competent person duly appointed and authorised to set up the machine or system according to the project
specifications and the recommendations of the machine manufacturer and in compliance with the laws on safety at work.

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Maintenance person: the person authorised by the owner to carry out on the unit all operations of regulation and checking expressly
indicated in this manual, and which must be strictly followed. His/her work will be limited only to what is clearly allowed.
Routine maintenance: all the operations that help to ensure the good performance and efficiency of the machine. These operations
are planned by the manufacturer who defines the skills required and the procedures to be implemented.
Extraordinary maintenance: all the operations that help to ensure the good performance and efficiency of the machine. These
operations, which are not foreseeable, are not planned by the manufacturer and must only be carried out by the specialist technician.
Logistics operators: the persons who duly set up the machine and apply all the applicable measures so that it can be handled in a
safe and correct manner. They are also those persons who, upon receipt of the machine, move it to the place of installation according
to the instructions which can be found on the machine. All the above employees must have adequate skills and observe the
instructions to ensure their own safety and that of those people with whom they interact in the process.
Expert operator: person appointed and authorised by the user or the buyer to use the machine and carry outthe routine maintenance
according to the instructions provided by the manufacturer. In the event of failures not considered in this manual, the expert operator
must request the assistance of a specialist technician.
Designer: a competent specialist person duly appointed and authorised to draw up a project that takes into account all the legislative
and regulatory aspects and code of good practice that apply to the system as a whole. In any case, as well as comply with the
instructions provided by the machine manufacturer, the designer must consider all the safety aspects for all those persons who
will have to interact with the system during its expected life span.
Owner: legal representative of the company, a body, or a natural person who owns the plant where the unit is installed and is
responsible for checking compliance with all the safety rules in this manual and the national regulations in force.
Specialist technician: the person authorised directly by MEHITS to carry out all operations of ordinary and extraordinary
maintenance. He/she will also carry out all regulations, checks, repairs and replacement of parts that should become necessary
during the life of the unit itself. Outside Italy and those countries where MEHITS and its subsidiary are not directly present, the
MEHITS agent is personally responsible for acquiring a suitable number of Technicians proportional to the area and to the business.
Carriers: the persons who take the machine to the destination in a suitable means of transport. They must stow and position the
machine in a suitable way to ensure that it cannot move suddenly during transfer. When using devices for loading and unloading,
they must observe the instructions that can be found on the machine to ensure their own safety and that of those people with whom
they interact in the process.
User: person authorised to manage use of the machine in compliance with the "instructions for use" and the laws in force concerning
safety at work.
WIZARDX: direct expansion air handling unit for use in conjunction with MR. Slim with R410A charge
WIZARDX-G07: direct expansion air handling unit for use in conjunction with MR. Slim with R32 charge
1.1.3 Attached documentation
The customer is provided with this documentation together with the machine:
-Installation, use and maintenance manual: it contains the list of operations to carry out.
-Wiring diagram: it is specific to the machine in question. It is useful for the persons who will have to carry out work on the
electrical system, as it shows the various components and connections.
-Dimensional and lifting drawings
-Assembly instructions for optional items: they describe the procedures for their installation on the machine.
-EC declaration of conformity: indicates that the machines comply with current European directives.
-Manual of the electronic controller
Before any activities, make sure to have received all the documentation listed, which must be read carefully and fully understood.
1.1.4 Safety regulations
This product is a complex machine. During installation, operation, maintenance and repairs, people and objects might be exposed
to risks associated with certain conditions or components such as, but not limited to: refrigerant, oils, moving mechanical parts,
pressure, heat sources, electrical power. Each of these elements might result in damage to objects and possibly serious personal
injury or even death. The people who operate the product have the obligation and responsibility to identify and recognise dangers
and to protect themselves and always proceed in safety.

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The unit must be installed in an area where access is only permitted to OPERATORS, MAINTENANCE PERSONNEL and
TECHNICIANS. If this is not possible, it must be enclosed in a perimeter fence positioned at least two metres from the external
surfaces of the machine itself.
The staff of the INSTALLER or any other visitors must always be accompanied by an OPERATOR. For no reason whatsoever must
non-authorised persons be left on their own with the unit.
MAINTENANCE TECHNICIANS must only work on the controls of the unit. They should not open any panels, other than the access
panel to the control module. The INSTALLER must limit him/herself to connecting the plant to the unit.
Access the unit using the relative personal protective equipment and only after having read and understood the documents and
instructions, which must always be kept close at hand.
This product and the relative documents, including this manual, are intended for people who have received independent training and
have been taught how to work in a correct and safe manner. Before handling this equipment in any way, it is essential that the
personnel involved have read and understand all the manuals and all the other reference material. The personnel must also be
familiar with and observe the standards that apply to the work in hand.
The manufacturer, during design and construction, has paid particular attention to aspects that may pose a risk to the safety and
health of people interacting with the machine. The manufacturer has complied with the applicable laws as well as the code of good
manufacturing practice. The purpose of this manual is to encourage users to take all due care and thereby avoid any risks. In any
case, prudence is required at all times. Safety is also the responsibility of all operators who interact with the machine.
Carefully read the instructions in this manual and those applied directly on the machine, and respect those concerning safety in
particular.
An overall project that envisages implementation of this machine in a system must take into account the code of good practice as
well as the legislative and regulatory aspects. Particular attention must be paid to all the recommendations and technological
information provided by the manufacturer. Do not tamper with, avoid, remove or bypass the safety devices installed on the machine.
Failure to observe this requirement could result in serious risks to the health and safety of the persons involved.
The personnel who carry out any kind of work during the entire life span of the machine must have precise technical knowledge,
special skills and recognised experience in the specific sector. Non-fulfilment of these requirements could endanger people's health
and safety.
Keep the area around the machine in a good state in order to avoid risks to the health and safety of persons during normal use and
maintenance of the machine.
Some processes may require the assistance of one or more helpers. In which case, these helpers must be duly trained and informed
of the type of work to be carried out in order to avoid risks to their health and safety.
Move the machine observing the information shown on the packaging and the instructions on use provided by the manufacturer.
When handling, if the circumstances demand it, request the assistance of one or more helpers who can give directions.
The personnel who carry out loading, unloading and handling of the equipment must have recognised skills and experience in the
specific sector and must have absolute command of the lifting equipment to be used.
During installation, observe the clearances indicated by the manufacturer and take into account all the work activities carried out in
the vicinity. Installation must also be carried out in compliance with the laws in force on safety at work.
The machine must be installed and connected in accordance with the manufacturer's instructions. The person in charge must also
take into account all regulatory and legislative requirements, carrying out all installation and connection operations in a workmanlike
manner.
After installation and before commissioning the machine, he must perform a general check to make sure that these requirements
have been met.
Check that any means of transport to be used for transfer of the machine aresuitable for the purpose, and that the machine is loaded
and unloaded with care to ensure the safety of the operator and of any other persons who are directly involved. Before transfer,
make sure that the machine and its components are duly anchored to the vehicle and do not exceed the maximum permitted
dimensions for transport on the vehicle. Apply any necessary signs.
The operator must have read and understood the information on use of the machine, and have suitable skills and experience for
carrying out the work in hand.
Put the machine only to the uses foreseen by the manufacturer. Improper use of the machine may pose risks to the health and safety
of the persons and cause financial losses.

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The machine has been designed and constructed to meet all the operating conditions indicated by the manufacturer. Tampering with
any of the devices to change the performance can expose the persons to health and safety risks and cause financial losses.
Only use the machine with the safety devices properly installed and in perfect working order. Failure to observe this requirement
could result in serious risks to the health and safety of the persons involved.
Keep the machine in perfect working order and perform the routine maintenance recommended by the manufacturer. Good
maintenance can help to ensure the best possible performance, a long useful life and constant compliance with the safety
requirements.
Before maintenance and adjustments, activate all the applicable safety devices and provide the personnel and any other people in
the vicinity with all necessary information.
In particular, cordon off the area and prevent access to all the devices that could, if activated, inadvertently cause danger and pose
risks to health and safety.
Maintenance and adjustments must be carried out by authorised persons who must implement all the necessary safety measures
according to the procedures set down by the manufacturer.
All maintenance operations that require specific technical expertise or skills must only be carried out by qualified personnel with
recognised experience in the field.
In the case of maintenance in areas that are awkward or dangerous to access, implement appropriate measures to ensure the safety
of oneself and of other people, in compliance with the laws in force on safety at work.
Replace excessively worn parts with original spare parts. Use components recommended by the manufacturer. All the above can
help to ensure the good working order of the machine and the required level of safety.
CAUTION:
During regular maintenance activities or in the event of a fault only use original components.
PROHIBITION:
The user is strictly prohibited to perform activities such as commissioning, regular/extraordinary
maintenance, modifications or anything else not provided for in this manual.
1.1.4.1 Proper and improper use
Use the unit only for the intended purposes for which it was designed. Any other use relieves Mehits of all liability arising from
improper use of the unit.
Air-handling units are designed for civil and industrial air handling.
In case of corrosive and/or explosive operating environments, during the design stage it is essential to make the machine suitable
for handling particular flows.
The use of the unit must always and in all cases comply with the design parameters set during the contract negotiations in
agreement with the customer. Any other use must be considered improper and dangerous.
Mehits shall not be liable for damage caused by different and unintended uses of the materials provided.
It is forbidden to use the unit:
•In explosive atmosphere
•In a flammable atmosphere
•In a corrosive atmosphere
•In excessively dusty environments
•By untrained personnel
•Not in accordance with current legislation
•If incorrectly installed
•With supply defects
•Without fully or partially following the instructions
•If not properly maintained and/or if non-original spare parts are installed
•With inefficient safety components.

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1.1.5 Precautions against residual risks
Prevention of residual mechanical risks
•install the unit according to the instructions set out in this manual;
•regularly carry out all the maintenance operations foreseen in this manual;
•wear protective equipment (gloves, eye protection, hard hat, etc.) appropriate for the work being carried out. Do not
wear clothing or accessories that can get entangled or sucked in by the air flow. Collect and tie hair to the head before
entering the unit;
•before opening the machine panelling make sure that it is firmly hinged to the machine;
•the fins on heat exchangers and the edges of metal components and panels can cause cuts;
•do not remove the guards from mobile components while the unit is operating;
•make sure that mobile component guards are fitted correctly before restarting the unit;
•fans, motors and belt drives might be running. Before accessing these, always wait for them to stop and take
appropriate measures to prevent them from starting up;
•fans, motors and belt drives might be running. Before starting the machine, make sure to install the appropriate
protections to prevent contact with the components during operation;
•the surfaces of the machine and pipes can get very hot or cold and cause the risk of scalding;
•never exceed the maximum pressure limit (PS) of the water circuit of the unit indicated;
•before removing parts on the pressurised water circuits, close the section of the piping concerned and drain the fluid
gradually to stabilise the pressure at the atmospheric level;
•do not use your hands to check possible coolant leaks.
Prevention of residual electrical risks
•the unit contains live parts that could cause serious injury or death. Only personnel trained in electrical hazards should work
on electrical and electronic components, such as electrical panels, motors, wiring. Personnel must wear the appropriate
personal protective equipment for the activities at all times, including, for example, gloves, dielectric shoes and face shield,
and use dielectric tools;
•before opening the electrical panel and any other electrical and electronic components, disconnect the unit from the mains
using the external switch on the machine;
•in the electrical panel are some cables and terminals, indicated in orange, that remain powered even with the power
disconnector open (circuits excluded).
•check that the unit has been grounded correctly before starting it;
•the machine must be installed in a suitable place. Do not install the machine outdoors if it is intended for indoor use;
•do not use cables of inadequate cross-section or loose connections. Not even in an emergency, or for limited periods;
•for units with power correction capacitors, wait 3 minutes after removing the electric power supply before accessing the
inside of the electrical panel;
•if the unit is equipped with frequency converters (inverters), disconnect the power supply and wait at least 15 minutes before
accessing it to carry out maintenance. During this time, internal components remain live, creating a risk of electric shock.
Prevention of environmental risks
•The machine contains substances and components that are dangerous for the environment, such as refrigerant gases and
lubricant.
•The units may only be serviced and disposed of by qualified technicians.
Refrigerant gas:
The cooling circuit contains fluorinated greenhouse gases covered by the Kyoto Protocol.
The fluorinated greenhouse gases contained in the cooling circuit must not be disposed of in the atmosphere.
Refrigerant gases must be recovered in accordance with current laws.
Coolant
R410A
R32
GWP100
2088
675
Lubricant oil:
The cooling compressors and the cooling circuit contain lubricant oil.
The oil must be recovered in accordance with current laws.
Do not disperse the oil in the environment.
For the level of machine noise emissions refer to the Technical Data Sheet of the unit. For the PPE required and any
operations/components for the reduction of noise see the table.

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Prevention of other residual risks
•When using R32 refrigerant, it will be necessary to take into account its LFL (Low Flammable Level), equal to 0.307 kg/m3.
To reduce the risk of flame, avoid areas with a gas concentration greater than 0.077 kg/m3 (25% LFL).
•To ensured safety with units charged with R32 refrigerant, make sure to observe the minimum area constraints for
installation as outlined in Section 2.2.1.2.
•Units using R32 refrigerant may only be installed outdoors.
•In order to ensure adequate ventilation to units with R32 charge, it is important that ducts are as indicated in chapter 2.2.14,
making sure that the inverted operation vane of the delivery damper is excluded from the aeraulic duct.
•The unit contains pressurized refrigerant gas. The pressurised equipment must not be touched except during maintenance,
which must be entrusted to qualified and authorised personnel.
•Connect up the utilities to the unit following the indications set out in this manual and in the pictograms on the panelling of
the unit itself.
•The water circuit contains harmful and bio-hazardous substances (e.g. legionella). Do not drink from the hydraulic circuit
and make sure the material contained in it does not touch your skin, eyes or clothing.
•In order to avoid an environmental risk, make sure that any leaking fluid is collected in suitable devices in accordance with
local regulations.
•If a part needs to be dismantled, make sure it is correctly re-assembled before starting the unit.
•When the rules in force require the installation of fire-fighting systems near the machine, check that these are suitable for
extinguishing fires on electrical equipment, and in the presence of compressor lubricant oil or refrigerant. As indicated in
the material safety data sheets of these fluids (for example a CO2extinguisher).
•If the unit is equipped with overpressure release devices (safety valves), if these devices are activated, the refrigerant gas
is released at high temperature/speed. Prevent the jet of gas released from injuring people or damaging property.
If necessary, channel the discharges appropriately, according to the provisions of the EN 378-3 standard and the current
local regulations in force, making sure to discharge to open and safe places any fluids belonging to a safety group other
than A1 (see table 3).
•Keep all the safety devices in good working order and check them periodically according to the regulations in force.
•Keep all lubricants in suitably marked containers.
•Do not store inflammable liquids near the unit.
•Only carry out brazing or welding activities on clean and empty pipes, without lubricant oil residues. Do not bring flames or
other sources of heat near pipes containing refrigerating liquid.
•Do not use naked flames near the unit.
•The machinery must be installed in structures protected against atmospheric discharge according to the applicable laws
and technical standards.
•Do not bend or hit pipes containing pressurised fluids.
•It is not permitted to walk or rest other objects on the machines.
•The user is responsible for overall evaluation of the risk of fire in the place of installation (for example, calculation of the fire
load).
•During transport, always secure the unit to the bed of the vehicle to prevent it from moving about and overturning.
•The machine must be transported according to the regulations in force taking into account the characteristics of the fluids
in the machine and the description of these on the safety data sheet.
•Inappropriate transport can cause damage to the machine and leaking of the cooling fluid. Before start-up, the machine
must be checked for leaks and repaired accordingly.
•The accidental release of refrigerant in an enclosed area can cause lack of oxygen, and therefore a risk of asphyxiation.
Install the machine in a suitably ventilated area, in accordance with the EN 378-3 standard and local regulations.
•The installation must comply with the requirements of EN 378-3 and the local regulations in force; in the case of installations
indoors, good ventilation must be guaranteed and refrigerant detectors must be fitted when necessary.
•Unless arranged otherwise with MEHITS, the machine be installed in environments where there is no risk of explosion
(SAFE AREA).
•The structure of the unit is not designed to withstand the stresses (accelerations) caused by an earthquake.
In accordance with the standard EN 60204-1, the handle of the circuit breaker must be easy to access and at a height of between
0.6 and 1.9 metres above the floor.
The positioning of the machine in the place of installation must be considered, as if the unit is placed on a raised platform, the height
of the switch might no longer be in compliance with the standards. In which case the installer must arrange for a walkway or a similar
solution that can allow operators to access the safety device with ease.

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Residual risks
Mandatory personal protective equipment
Residual mechanical risks
Residual electrical risks
Other residual risks
Residual risks for
maintenance
As far as the required PPE and its use, reference should be made to Italian Legislative Decree. 81/08 and IEC 82078-1:2012
Safety signs
The unit is fitted with the necessary safety signs; here are some examples:
1.1.6 Procedure for requesting support
For support, please contact one of the authorised centres (Italy) or our distributors (outside Italy). When requesting technical support
concerning the machine, cite the data on the identification plate, and the serial number in particular, and describe the conditions of
access and the area around the machine.
In your request, indicate the approximate hours of use and the fault detected. In case of alarm, indicate the alarm message number.

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1.2 Designation
WIZARDX C-OU 12500
3000 -Air handled [m3/h] = 2000 - 3000
5000 -Air handled [m3/h] = 3500 - 5000
7500 -Air handled [m3/h] = 5500 - 7500
Size 10000 -Air handled [m3/h] = 8000 - 10000
12500 -Air handled [m3/h] = 10500 - 12500
15000 -Air handled [m3/h] = 13000 - 15000
20000 -Air handled [m3/h] = 15500 - 20000
Version C-OU -Standard
E-OU -High potential for adjustment
B-OU -Need for dehumidification
Name WIZARDX -R410A charged air handling unit
WIZARDX-G07
-R32 charged Air handling Units
The type of machine is indicated on the label on the machine itself, normally on the
inspection door of the delivery fan. The label provides the reference data and all the essential information required to ensure
safe operation.

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1.3 GENERAL DESCRIPTION
1.3.1 General description
DESCRIPTION:
E.A. →Ejection flow
3 →Grid with anti-intrusion net
O.A. →External air flow
4 →ED Coil
S.A. →Ambient delivery flow
5 →Delivery fan
R.A. →Ambient return flow
6 →Return fan
1 →Aluminium cover
7 →Delivery filters
2 →Rotary recovery
8 →Return filters
The units in the WIZARDX series control the external air intake and are characterised by exceptional energy efficiency and a high
level of configurability.
The WIZARDX units have a rotary heat recovery system and energy efficient fans selected in accordance with the European
Ecodesign regulation 1253/2014 and are therefore compliant with the ErP 2018 directive.
The WIZARDX series is based on efficient direct expansion technology, where ecological R410A - R32 refrigerants are supplied to
the internal coil, in combination with Mitsubishi Mr. Slim outdoor heat pump units.
The electrical power and control panel includes a microprocessor with preloaded exclusive management software that integrates all
the characteristic functions of the machine. The panel provides for the integration of one or more Mitsubishi PAC-IF 013 electronic
boards, which allow communication to and from Mr. Slim Mitsubishi outdoor units, to ensure their operation always at maximum
efficiency.
1.3.2 Unit configuration
There are three versions for specific weather conditions and applications:
•Version C-OU (STANDARD): version for air renewal only, with handling under conditions of neutral inlet temperature. Control of
delivery temperature, optional control of return temperature.
•Version B-OU (HIGH DEHUMIDIFICATION): version for air renewal, with increased potential to permit better dehumidification.
Control of delivery temperature, optional control of return temperature.
•Version E-OU: version for air renewal only, with handling under conditions of neutral inlet temperature with a direct expansion coil with
more than one circuit and Mitsubishi Mr. Slim outdoor units for temperate climates. Control of delivery temperature, optional control of
return temperature.
CAUTION:
The guarantee is rendered null and void when:
-The instructions in this manual are not observed.
- The customer or a third party makes alterations to the unit without the consent of Mehits.
- Losses or damage to people or things due to improper use of the equipment.

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17
Combination of WIZARDX units and Mr. Slim outdoor units
The units in the WIZARDX series are combined with the Mr. Slim direct expansion outdoor units to guarantee the required
performance in both heating and cooling mode. The Mr. Slim outdoor units are combined with the three versions of the WIZARDX
as shown in the tables below:
•Combinations for the C-OU (STANDARD) version of the WIZARDX
Outdoor
Units
WIZARDX
3000
WIZARDX
5000
WIZARDX
7500
WIZARDX
10000
WIZARDX
12500
WIZARDX
15000
WIZARDX
20000
Size P50
Size P100
1
Size P125
Size P140
Size P200
1
2
1
Size P250
1
1
2
3
•Combinations for the E-OU version of the WIZARDX
Outdoor
Units
WIZARDX
3000
WIZARDX
5000
WIZARDX
7500
WIZARDX
10000
WIZARDX
12500
WIZARDX
15000
WIZARDX
20000
Size P50
2
Size P100
2
Size P125
2
Size P140
3
Size P200
2
Size P250
2
3
•Combinations for the B-OU (HIGH DEHUMIDIFICATION) version of the WIZARDX
Outdoor Units
WIZARDX
3000
WIZARDX
5000
WIZARDX
7500
WIZARDX
10000
WIZARDX
12500
WIZARDX
15000
WIZARDX
20000
Size P50
Size P100
2
Size P125
Size P140
1
Size P200
1
3
4
Size P250
2
4
5
1.3.3 Main machine components
Frame
Frame in double chamber aluminium profiles and panels fixed with flat-head screws that do not protrude into the unit. The screws
are set in plastic to lessen the effect of the thermal bridge.
If the self-drilling screws that secure the panels to the frame are removed, they must be replaced with metric screws and their insert
attached to the frame.
The units up to size 12.500 are one-piece, the size 15.000is in 3 sections and size 20.000is in 6 sections for the purpose of transport.
Panelling
The panels are of the double-walled sandwich type, with internal galvanized steel sheet thickness 5/10. The external sheet is in pre-
plasticized galvanized steel thickness 5/10 for WIZARDX, and in pre-painted galvanized steel thickness 5/10 for WIZARDX-G07.
The panel is 45 mm thick with insulation made by means of the thermal expansion of polyurethane foam of a density of 45 kg/m³.
The leakage class is L3 according to EN 1886 which defines amax leakage of 1.32 l/s*m² with test pressure of -400 Pa and a leakage
value of 1.90 l/s*m² with test pressure +700 Pa.
The acoustic dampening properties of the panelling are shown in the table below:
Octave band Hz
125
250
500
1000
2000
4000
8000
Decibel reduction
10
12
14
15
21
34
38

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The standard machine configuration is with inspections points (panels and opening doors) and refrigerant and water connections on
the right. As optional, it is also possible to request the configuration with left connections and inspection points.
The right and left sides are seen looking away from the flow of supply air.
•Inspection doors and refrigerant and water connectors on right side:
•Inspection doors and refrigerant and water connectors on left side:
Heat recovery unit
High performance rotary heat recovery unit to allow for efficient and high recovery of energy in compliance with ERP 2018
requirements.
The rotor is made of a special hygroscopic aluminium that guarantees high performance exploiting the latent contribution to the total
recovery of the machine, making use therefore of the exchange of both humidity and sensitive heat.
Direct expansion coil
-geometry 25 X 21.65 mm;
-copper pipe Ø 9.52 mm;
-copper manifolds;
-aluminium fins;
-galvanised steel frame;
-R410A or R32 ecological refrigerant.
Switchboard and regulation
The functional heart of the WIZARDX is the switchboard with electronic controller and high-level components.
The microprocessor manages all the control and regulation functions of the WIZARDX and its optional accessories as well as the
safety functions of the system.
The components used for regulation are temperature and humidity probes to detect the operating parameters of the unit, differential
pressure switches on the filters to check the state of cleanliness, pressure transducers to check and manage the air flow of the fans,
and all the components required for any additional accessories.
The B-OU and E-OU versions, which require more than one Mitsubishi Mr. Slim outdoor unit, are based on the exclusive Mitsubishi
IMOUC protocol (Intelligent Multiple Outdoor Units Control) which optimises power levels and increases energy efficiency. In heating
mode, the protocol manages the defrost phases of the outdoor units in sequential order with the aim of maintaining the required
temperature setpoint with control of both the delivery and return temperature.
The units include specific power supplies and protections when ordering optional accessoriesthat for their operation require adequate
power consumption. In particular, if the steam generator or the electric pre and post heating coils are ordered, the power supply and
the corresponding protection will be directly integrated in the electrical cabinet at the factory.
For accessories that must be installed separate from the base unit, specific connection cables with connectors are supplied. On-site
connection using these connectors re-establishes the power and signal line between the main electrical panel and the external
accessory.

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Fans
The delivery and return fans are centrifugal reverse-blade plug-fans with a free impeller and an electronically controlled high
performance motor commonly called an EC motor. The motor is directly integrated into the fan structure for greater structural
compactness and the ZAmid high performance composite material of the impeller and the low consumption of the electronically
controlled motor allow for the best in ventilation performance.
Air filter
In its standard configuration, the machine is supplied with ISO COARSE 55% - ISO 16890 (G4 - EN 779:2012) synthetic filters +
EPM1 50% - ISO 16890 (F7 - EN 779:2012) rigid bag filters on the delivery line, and ISO COARSE 55% - ISO 16890 (G4 - EN
779:2012) synthetic filters on the return line.
Cover panel
The cover is made as our standard in aluminum sheet and is always supplied as standard equipment for the WIZARDX-G07 units
(outdoor installation). Other materials can also be used (galvanised steel - AISI 304). When the cover panel is fitted, the size of the
unit is increased by 20 mm on each side and the height of the module it is fitted on is increased by 35 mm.
In some cases, the cover panel can be supplied disassembled on pallets or inside the unit and then fixed to the module using the
screws supplied. If the self-drilling screws that secure the roof are removed, they must be replaced with metric screws and their insert
attached to the frame.

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20
1.3.4 Operating limits of the machines
INFORMATION:
The operating range of the WIZARDX units is as follows (values referring to the temperature of the flow of
fresh air entering the WIZARDX):
-Minimum temperature: -15 °C
-Maximum temperature: 40 °C
The preheating coil must be used for temperatures below -10 °C.
Check the operating range of the Mr. Slim condensing units in their documentation.
1.3.5Technical characteristics of the machines
1.3.5.1 Technical characteristics of machines with R410A refrigerant
WIZARDX 3000 WIZARDX 5000 WIZARDX 7500 WIZARDX 10000 WIZARDX 12500 WIZARDX 15000 WIZARDX 20000
Air flow
[m3/h] 3000 5000 7500 10000 12500 15000 20000
Air flow range
[m3/h] 2000 - 3000 3500-5000 5500-7500 8000-10000 10500-12500 13000-15000 15500 - 20000
Max useful head (standard configuration) [Pa]
Max useful head (high pressure configuration) [Pa]
Output of RH coil [kW] 10 20 25 40 45 50 75
Output of Heat recovery unit [kW] 18,1 29,5 43,5 58,2 73,7 86,4 121,3
Total output [kW] 28,1 49,5 68,5 98,2 118,7 136,4 196,3
Output of RH coil [kW] 11,2 22,4 27 44,8 49,4 54 81
Output of Heat recovery unit [kW] 13,8 22,2 32,8 43,9 55,5 65,4 92,4
Total output [kW] 25 44,6 59,8 88,7 104,9 119,4 173,4
Sensitive heat recovery performance [%] 75,4 72,7 71,7 72 72,7 71,4 75,6
Total heat recovery performance [%] 71,6 70 68,5 69,7 70 68,5 71,6
Sensitive heat recovery performance [%] 77,1 74,3 73,4 73,6 74,3 73,1 77,2
Total heat recovery performance [%] 75,6 73,5 71,5 72,6 73,5 71,7 75,6
Delivery fan(s) (250Pa) [kW] 0.85/ 2.5 1.39/ 2.5 1.87/ 5 2.51/ 5 3.18/ 5 3.88/ 10 5.53/ 10
Return fan(s) (250Pa) [kW] 0.74 / 2.5 1.25 / 2.5 1.61 / 5 2.16 / 5 2.91 / 5 3.35 / 10 4.80 /10
Rotary heat recuperator [kW] 0,04 0,09 0,18 0,18 0,37 0,37 0,37
Transformers [kW] 0,7 0,7 0,7 0,7 1 1 1
Total of WIZARDX [kW] 2.33 / 5.74 3.43 / 5.79 4.36 / 10.88 5.55 / 10.88 7.46 / 11.37 8.60 / 21.37 11.70 / 21.37
Humidification section (accessory) [kg/h] 8 15 18 25 35 45 65
All the data were obtained under nominal conditions, using a unit without accessories and with clean filters.
C-OU
MODEL
250
400
Cooling
Heating
Cooling
Heating
Power consumption
(NOMINAL/MAX)
Filtering section
F7 bag filters
WIZARDX 3000 WIZARDX 5000 WIZARDX 7500 WIZARDX 10000 WIZARDX 12500 WIZARDX 15000 WIZARDX 20000
Air flow
[m3/h] 3000 5000 7500 10000 12500 15000 20000
Air flow range
[m3/h] 2000 - 3000 3500-5000 5500-7500 8000-10000 10500-12500 13000-15000 15500 - 20000
Max useful head (standard configuration) [Pa]
Max useful head (high pressure configuration) [Pa]
Output of RH coil
[kW]
10 20 25 40 42 50 75
Output of Heat recovery unit
[kW]
18,1 29,5 43,5 58,2 73,7 86,4 121,3
Total output
[kW]
28,1 49,5 68,5 98,2 115,7 136,4 196,3
Output of RH coil
[kW]
12 22,4 28 44,8 48 54 81
Output of Heat recovery unit
[kW]
13,8 22,2 32,8 43,9 55,5 65,4 92,4
Total output
[kW]
25,8 44,6 60,8 88,7 103,5 119,4 173,4
Sensitive heat recovery performance [%] 75,4 72,7 71,7 72 72,7 71,4 75,6
Total heat recovery performance [%] 71,6 70 68,5 69,7 70 68,5 71,6
Sensitive heat recovery performance [%] 77,1 74,3 73,4 73,6 74,3 73,1 77,2
Total heat recovery performance [%] 75,6 73,5 71,5 72,6 73,5 71,7 75,6
Delivery fan(s) (250Pa)
[kW]
0.85 / 2.5 1.39 / 2.5 1.87 / 5 2.51 / 5 3.18 / 5 3.88 / 10 5.53 / 10
Return fan(s) (250Pa)
[kW]
0.74 / 2.5 1.25 / 2.5 1.61 / 5 2.16 / 5 2.91 / 5 3.35 / 10 4.80 /10
Rotary heat recuperator
[kW]
0,04 0,09 0,18 0,18 0,37 0,37 0,37
Transformers
[kW]
0,7 0,7 0,7 0,7 1 1 1
Total of WIZARDX
[kW]
2.33 / 5.74 3.43 / 5.79 4.36 / 10.88 5.55 / 10.88 7.46 / 11.37 8.60 / 21.37 11.70 / 21.37
Humidification section (accessory) [kg/h] 8 15 18 25 35 45 65
All the data were obtained under nominal conditions, using a unit without accessories and with clean filters.
E-OU
MODEL
250
400
Cooling
Heating
Cooling
Heating
Power
consumption
(NOMINAL/MAX)
Filtering section
F7 bag filters