Daikin Modular Light Operation manuals
Installation, use
and maintenance manual
Modular Light
Modular L
Translation of the original instructions
Modular Light heat recovery units guarantee high quality indoor air at low energy
costs. The range consists of six sizes, customisable by adding external modules.
Armed with an extremely flexible development, Daikin air handling units are able to
satisfy all types of technical requirements.
Daikin systems guarantee respect for the environment since they are based on high
levels of energy efficiency. Reduced ecological impact and low energy consumption
make Daikin recovery units ideal for any type of market.
Contents
Assembly instructions
Important warnings 4
Purpose of the manual 4
Intended use of the machine 4
Safety regulations 5
Residual risks 8
Safety devices 9
Machine characteristics 10
Environmental conditions 10
Environmental contamination 10
Noise 10
Ceiling and air duct specifications 11
Technical data 12
Attachments 12
Summary of machine operation 14
Receipt of the cartons 15
Transport 16
Unpacking and verification of integrity
After unpacking 17
Reading the serial number plate 18
Storage waiting for installation 19
17
Installation 20
Installation procedure 20
Maintenance 28
Safety precautions for maintenance 28
Ordinary maintenance 29
Extraordinary maintenance 33
Diagnostics 36
Troubleshooting table 37
Repair log 38
1
Important warnings
The pictogram shows a situation of immediate danger or a dangerous situation that might cause injuries or death.
The pictogram shows that it is necessary to adopt suitable behaviour in order to avoid jeopardising staff safety and
cause damages to the equipment.
The pictogram shows particularly important technical information that should be taken into consideration by the
people installing or using the equipment.
Purpose of the manual
The purpose of this manual is to guide the installer and qualified operator in the installation,
maintenance and proper and safe use of the equipment. For this reason, it is mandatory for all
personnel involved in installation, maintenance and supervision of the machine to read this
manual.
Contact the manufacturer if any points are unclear or difficult to understand.
This manual contains information regarding:
- Technical specifications of the machine.
- Instructions for transport, handling, installation and assembly.
- Use.
- Information for instructing personnel authorised for its use.
- Maintenance activities.
All information refers in general to any unit of the Modular Light ranges. All the units are shipped
together with a technical schematic indicating the specific weight and size of the machine received.
It must be considered an integral part of this manual and therefore it must be kept with the utmost
care in all its parts.
If the manual or schematic is lost, it is important to request a copy from the manufacturer, specifying
the unit's serial number and date of purchase that can be found on the invoice.
In the case of divergent information between this manual and the schematic, the schematic will
prevail.
Intended use of the machine
This appliance has the function of treating the air intended to condition civil and industrial environments. Any other use is not in accordance with the intended use and therefore dangerous.
These ranges of units are designed for use in NON-explosive environments. For installation in
potentially explosive environments, the manufacturer can design and manufacture suitable machines
(anti-explosion) that will be identified by the mark .
If the machine is used in critical situations, by type of system or environmental context, the customer
must identify and adopt the technical and operational measures to avoid damage of any kind.
4
Safety regulations
Skills required for the installation of the machine
Installers must perform operations according to their professional qualifications: all activities not within one's expertise
(i.e. electrical connections) must be carried out by specialised and qualified staff so as not to endanger one's safety and
the safety of the other operators interacting with the machine.
Transport and equipment handling operator: authorised person with recognised expertise in using transport
and lifting equipment.
Technical installer: expert technician, sent or authorized by the manufacturer or its representative, with adequate
skills and training to install the machine.
Assistant: technician subject to care obligations while lifting and assembling the equipment. He must be suitably
trained and informed about the operations to perform and the safety plans of the site/installation location.
In this manual, the technician competent to carry out each operation is specified.
Skills required for the use and maintenance of the machine
Generic operator: AUTHORISED to run the machine using commands placed on the keypad of the electrical control
panel. Performs only machine control operations, power on/off.
Maintenance mechanic (qualified): AUTHORISED to carry out maintenance, adjustments, replacement and repair
of mechanical parts. It must be a person competent in mechanical systems, therefore able to perform mechanical
maintenance in a satisfactory and safe manner, must possess theoretical preparation and manual experience. NOT
AUTHORISED to work on electrical systems.
Manufacturer's technician (qualified): AUTHORISED to perform complicated operations in every situation.
Operates in accordance with the user.
Maintenance electrician (qualified): AUTHORISED to perform service of an electric nature, adjustments,
maintenance and electrical repairs. AUTHORISED to operate in the presence of an active electrical connection inside
the control panels and junction boxes. It must be a person competent in electronics and electrical engineering,
therefore able to work on electrical systems satisfactorily and safely, must possess theoretical knowledge and proven
experience. NOT AUTHORISED to work on mechanical systems.
Installers, users and maintenance staff for the machine must also:
- Be responsible and experienced adults without physical impairments, in perfect psychological and physical condition.
- Master the machine's operating cycle, therefore participate in theoretical/practical training alongside an expert machine operator,
or alongside a technician of the manufacturer.
In this manual, the technician competent to carry out each operation is specified.
5
Read this manual carefully before machine installation and maintenance and keep it for any
further future consultation by the various operators. Do not remove, tear out or rewrite any part
of this manual.
All installation, assembly, electrical connections to the mains and ordinary/extraordinary
maintenance must be performed only by qualied personnel authorised by the Retailer
or Manufacturer after turning off the unit electrically and using personal protective
equipment (i.e., gloves, protective goggles, etc.), in compliance with the regulations in force in
the country the equipment is to be used in and the laws regarding the systems and safety in
the workplace.
Installation, use or maintenance other than those specified in the manual may cause damage,
injury or death, invalidate the warranty and relieve the Manufacturer of any liability.
Use protective clothing and suitable equipment while handling or installing the equipment, in
order to prevent accidents and safeguard your own and other people's safety. Individuals not
assigned to installation or maintenance are NOT allowed to stand or pass through the work area
while the machine is assembled.
Disconnect the equipment from the mains before installing or maintaining it.
Before installing the equipment, check that the systems comply with the legal provisions in
force in the country of use and meet the specifications on the serial number plate.
It is the responsibility of the user/installer to check the static and dynamic stability relative to
the installation and to arrange environments so that people who are not competent or
authorised DO NOT have access to the machine or to its commands.
It is the responsibility of the user/installer to make sure that weather conditions do not affect
the safety of persons and property during installation, use and maintenance.
Make sure the air intake is not located near any exhausts, flue-gases or other contaminating
elements.
Do not install the equipment in places exposed to strong winds, salt air, open flames or
temperatures exceeding 40°C (104°F).
After installation is complete, instruct the user on the correct use of the machine.
If the equipment does not work or functional or structural alterations are noted, disconnect
it from the mains and contact a service centre authorised by the Manufacturer or Retailer,
without attempting to repair it on your own. For any replacements request the use of original
spare parts.
Unauthorised actions, tampering or modifications that do not follow the information provided
in this manual can cause damage, injuries or fatal accidents and void the warranty.
6
The serial number plate on the unit provides important technical information, essential in case
of machine maintenance or repairs. We recommend that you do not remove, damage or modify
it.
In order to ensure correct and safe conditions of use, it is recommended to have the unit
maintained and checked at least annually by a service centre authorised by the manufacturer or
dealer.
Failure to follow these instructions may cause damage and injuries, even fatal, voids the
warranty and relieves the Manufacturer of any liability.
7
Residual risks
Despite having implemented and adopted all the safety measures indicated by applicable regulations,
some residual risks remain. In particular, in some operations of replacement, adjustment and tooling maximum attention is always required in order to work in the best possible conditions.
List of operations with residual risks
Risks for qualified personnel (electrician and mechanic)
- Handling - during unloading and handling it is necessary to pay attention to all the steps listed in this manual regarding the points
of reference
- Installation - during installation it is necessary to pay attention to all the steps listed in this manual regarding the points of reference
The installer must ensure the static and dynamic stability of the machine's site of installation.
- Maintenance - during maintenance it is necessary to pay attention to all the steps listed in this manual, and in particular to high
temperatures that may be present in the heat transfer fluid lines to/from the unit.
- Cleaning - the machine must be cleaned only when it is switched off, by turning off the switch installed by the electrician and
the switch located on the unit itself. The key for interrupting the power supply must be kept by the operator until the end of the
cleaning operations. Internal cleaning of the machine must be carried out using the protections required by current regulations.
While the inside of the machine does not contain particular hazards, it is necessary to pay the utmost attention so that accidents
do not occur during cleaning. The heat exchange coils that have a potentially sharp finned pack must be cleaned using protective
glasses and gloves suitable for handling metals.
During adjustment, maintenance and cleaning there are residual risks of variable entity. Being operations
that must be performed with guards disabled, it is necessary to pay particular attention in order to avoid
damage to persons and things.
Always pay close attention when performing the operations specified above.
Remember that these operations must always be performed by authorised personnel.
All work must be completed in accordance with the legal provisions relating to work safety.
Remember that the unit in question is an integral part of a larger system that includes other components,
depending on the final characteristics of realisation and the mode of use. Therefore in the end it is
the responsibility of the user and assembler to assess the residual risks and their respective preventive
measures.
For more information about the possible risks, please refer to the RAD (Risk Assessment
Document) available from the manufacturer.
8
Safety devices
The machine is equipped with safety devices to prevent risks of damage to persons and for
proper operation. Always pay attention to the symbols and safety devices on the machine. It
should only operate with the safety devices engaged and with fixed or movable guards
installed correctly and in the proper position.
If during installation, use or maintenance the safety devices have been temporarily removed
or disabled, the machine can be operated exclusively by the qualified technician who made
this change. It is mandatory to prevent other people's access to the machine. When finished,
restore the devices to their proper status as soon as possible.
9
2
Machine characteristics
Environmental conditions
Modular Light heat recovery units are designed for use in indoor environments, installed on
the ceiling. The unit cannot operate in environments containing explosive material and with
a high concentration of dust.
Outside air temperature
Operating environment temperature
Temperature of the environment with the ma-
chine off (e.g., storage, transport, etc.)
Thanks to its modularity, each machine is able to adapt to different needs in terms of air flow
and thermodynamic treatments.
The optimised choice of every detail, the search for maximum efficiency in each
component, the adoption of specific materials and constructive solutions transform
environment friendliness and energy savings into valid and advanced technological
solutions.
-25°C to +45°C
+5°C to +45°C
-40°C to +60°C
Environmental contamination
Depending on the installation operating environment, specific regulations must be followed and all the
necessary precautions must be taken to avoid environmental issues (a system that operates in a hospital
or chemical environment can have problems different from those in other sectors, even from the point of
view of disposal of consumable parts, filters, etc.).
It is mandatory for the buyer to inform and train workers regarding proper procedures.
Noise
The machines have been designed and manufactured in such a way as to produce sound
> 80 dB(A)
during the machine's actual use.
10
emissions below the threshold of 80 dB(A). It should be noted that every environment has
its own acoustic characteristics that can greatly affect the noise perceived during operation,
therefore it is necessary to consider the noise data provided as a point of reference, while it
is up to the buyer to perform specific sound level measurements at the installation site and
Ceiling and air duct specifications
The ceiling where you plan to install the machine must be:
- Perfectly flat and without roughness.
- Vibration resistant.
- Able to support the weight of the equipment considering an appropriate safety margin (see table of technical data on page
12).
The equipment installed on the ceiling can adapt easily to the presence of a false ceiling.
In fact, without sufficient space for up-and-over door opening, the inspection door can be transformed
into a panel able to slide on accessory guides (optional)
If provided, the air ducts must be connected directly to the machine, taking care to insert a suitable
anti-vibration system between the machine itself and the duct. When assembly is completed they must
not be taut, in order to avoid damage and transmission of vibrations.
To ensure the seal of the connections and the integrity of the machine, it is essential that the air ducts be
supported by special brackets that do not weigh directly on the machine.
11
Technical data
TECHNICAL DATA TABLE
SIZE
2 3 4 5 6 7
Nominal air flow rate
m3/h
Heat efficiency %
FLA
FLI
W
Electrical connection
WEIGHT TABLE
Gross weight with packaging
Device weight
Door weight
Filter weight
Fan weight
Recuperator weight
Tank panel weight
kg
kg
kg
kg
kg
kg
kg
300 600 1200 1500 2500 3000
89 89 89 89 90 89
A
2.80 4.50 4.50 4.70 8.90 9.30
371 1033 1033 1033 2033 2033
200-277 V, 1 ph
SIZE
2 3 4 5 6 7
135 190 285 295 370
125 180 270 280 355
2x10,0 2x12,0 2x18,0 2x18,0 2x22,0
2x0,2 2x0,3 2x0,5 2x0,5 2x0,5
2x2,5 2x8,5 2x8,5 2x9,0 4x8,5 4x9,0
1x9,0 1x14,0 2x15,0 2x15,0 2x24,0 2x24,0
1x13,0 1x16,0 1x24,0 1x24,0 1x29,0 1x29,0
375
360
2x22,0
2x0,5
Preheating external coil
Kindly make sure that the frontal velocity through the preheating element is maintained above 1.5 m/s
for safety reasons.
Electric
panel
Electric
panel
The machine must be tilted by approximately 2% of the width (B) (lifting it towards the electric panel)
1
2%
Condensation
discharge
12
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