Daikin Modular Rotary, Modular Plate Operation manuals

Installation, use and
maintenance manual

Modular Rotary
Modular Plate

Modular P and R

Translation of the original instructions

REV 00

DATE November 2020

SUPERSEDES D-KIMAH00111-19EN

Daikin air handling units guarantee high quality indoor air at low energy costs. Fully
customisable systems or pre-configured standard modular units are available.

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 air handling units ideal for any type of market.

Contents

Important warnings 4

Purpose of the manual 4
Intended use of the machine 4
Safety regulations 5
What to do in case of accident? 7
Residual risks 8
Safety devices 9

Machine characteristics 10

Environmental conditions 10
Environmental contamination 10
Electrical panel limit operating conditions 10
Range specifications 11
Summary of machine operation 13
Attachments 13
Adhesives on the machine 14
Machine description 16

Receipt of the cartons 19

Reading the packaging symbols 19

Transport 20

Lifting using hooks 20
Lifting using a pallet truck 21
Lifting non-palletised equipment 21

Unpacking and verification of integrity 22

After unpacking 22
Reading the serial number plate 23
Storage waiting for installation 24

Installation 26

Commissioning 43

Use of the machine 44

Maintenance 45

Safety precautions for maintenance 45
Ordinary maintenance 46
Extraordinary maintenance 50
Diagnostics 52
Troubleshooting table 53
Repair log 54

Use 50

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 R and Modular P ranges. All units are shipped
accompanied by:

- electrical diagram;

- manual for all accessories;

- section coupling manual;

- operating manual;

- installation manual;

- declaration of conformity;

- electrical panel CE certification;

- electrical panel test report.

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 (an-

ti-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. Oper-

ates in accordance with the user.

Maintenance electrician (qualified): AUTHORISED to perform service of an electric nature, adjustments, mainte-

nance 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 qualied personnel authorised by the Retailer or Manu-
facturer 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 author-
ised 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 el-

ements.

Do NOT install the equipment in places exposed to strong winds, salt air, open flames or tem-

peratures exceeding 46°C (115°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.

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 main-

tained 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.

6

Information ownership

This Manual contains proprietary information. All rights reserved.
This manual may not be reproduced or photocopied, in whole or in part, without the Manufacturer's
prior written consent. The use of this documentary material is allowed only to the customer to whom
the manual has been supplied as a kit for the machine and only for the purposes of installation, use and
maintenance of the machine to which the manual refers. The Manufacturer declares that the information
contained in this manual is congruent with the technical and safety specifications of the machine to
which the manual refers. The drawings, diagrams and technical data shown are updated to the date of
publication of this document and are valid exclusively for the machine they accompanied. The Manufac­turer reserves the right to make changes or improvements to this documentary material without notice.
The Manufacturer accepts no responsibility for direct or indirect damage to persons, things or pets result­ing from the use of this documentary material or the machine in conditions other than those provided for.

What to do in case of accident?

Installation, use and maintenance should always be performed along with other people who are able to provide assistance in
case of accident.

WHAT TO DO IN CASE OF AN ACCIDENT (general rules)

- remain calm and lucid, quickly examine the situation and act accordingly;

- if necessar y, disconnect the machine's power supply;

- promptly call emergency services (118 in Italy) without abandoning the victim, explaining what happened and listening care-

fully to the instructions of the emergency services;

- carry out first aid (see section below), remain close to the accident victim, watching and comforting him/her with your presence until
the first responders arrive;

While waiting for rst responders:

- move the victim only if absolutely necessary, for example to move him/her away from more serious hazards (e.g., fire, gas leak, etc.);

- avoid coming into contact with any blood or secretions, protecting your hands with gloves and if possible the mucous membranes of
your eyes with protective glasses;

- if conscious, have the injured person lie down, loosen tight clothing, open the windows if in a closed place and keep back the bystand-
ers who tend to crowd the place. If unconscious, place the victim in the lateral safety position (see drawing) and cover him/her with
a blanket.

lateral safety position

- if the injured person is haemorrhaging (bleeding) significantly, promptly arrest the blood loss with manual compression, using a tour-
niquet only as a last resort (as it can lead to tissue damage);

- if the injured person is not breathing or is in cardiac arrest, perform CPR;

WHAT NOT TO DO:

- Never give alcohol to the injured person, and, if unconscious, any type of drink.

- Never take any action that is the physician's responsibility (e.g., administering medicines).

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.

Key lock (standard): the doors to access the machine's fan area have a key lock on the handle, to avoid their opening by unau­thorised persons.
Micro Switch (optional): the doors to access the machine's fan areas can be equipped with a Micro Switch to interrupt the
power supply. They are of the "magnetic proximity sensor" type with polarised magnet, which cannot be excluded by means of
magnetised instruments, guaranteeing correct operation even in conditions of permanent humidity.
Protective guard (optional): in the transmission area the motor-cooling unit is equipped with a suitably shaped protective
guard, mechanically and jointly attached.
Safety handles (standard): double-click handle system for the access doors to the ventilating area of the machine to prevent
accidental opening during operation.

9

2

Machine characteristics

Environmental conditions

The machine was designed to operate in technical spaces or outdoors. It CANNOT operate
in environments with explosive material, high concentration of dust and in environments
with high temperatures (range from -25 to 46°C - maximum altitude: 2500 m above

46°C

90% max

sea level), unless specific production requests were made.

These machines are used to resolve thermohygrometric and air purity problems in both civil
and industrial environments.

Thanks to its modularity, each machine is able to adapt to different needs in terms of air
handling:

- civil

- airports

- banking

- commercial

- hotel

- museums, theatres, cinemas and auditoriums

- television and recording studios

- libraries

- data processing centres

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.

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.

Controller limit operating conditions

Operation (IEC 721-3-3):

- Temperature -40 ÷ +70 °C

- LCD -20 ÷ +60°C

- Humidity <90% relative humidity (without condensation)

- Min. air pressure 700 hPa, corresponding to a maximum of 3,000 m above sea level

- Transport (IEC 721-3-2) and storage:

- Temperature -40 ÷ +70 °C

- Humidity <95 % relative humidity (without condensation)

- Min. air pressure 260 hPa, corresponding to a maximum of 10,000 m above sea level

10

Range specifications

The MACHINE is designed and built for air treatment and can have different configurations depending on
the type of treatment requested by the customer. In this sense, the MACHINE consists of several sections,
each of them with a specific function, which may or may not be present according to the type of treat­ment requested.
The supporting structure consists of profiles made by aluminium alloy extrusion. The fixing screws are
concealed in the profile itself so as to have smooth surfaces on the inside. The panels of the structure
consist of two zinc-plated box press-folded sheets injected with polyurethane. Alternatively, as an insu­lator, mineral wool can be used. Where necessary, along the panels, doors with locked handles and/or
portholes are installed to inspect the inside of the machine.

Construction specifications:

- Profile type: anodised aluminium with thermal break

- Insulation panels: polyurethane or mineral wool

Base module

- Condensing or absorbing rotary recuperator, or with counterflow plates;

- Single suction EC-type centrifugal fans with integrated electronics (2 in parallel for each fan section for size 09-10);

- Pocket filters;

- Compact prefilters;

- Aluminium dampers;

- Condensate drain tank downstream of the recuperator (only for Modular-P model).

Additional modules

- In addition to the Basic Module, depending on the customer's needs, it is also possible to add optional
components:

- Mixing Module, used to vary the mixture of the supplied air;

- Attenuator in Exhaust Air;

- Attenuator in Fresh Air;

- Electric heating battery (preheating or post-heating);

- Additional rigid pocket filter;

- Hot water battery;

- Cold water battery

- As an alternative to water batteries, direct expansion batteries can be used for both heating and cooling.

11

Available modules:

- Battery module;

- Filter module

- Pre- and post-heating module;

- Flow separating module with side dampers;

- Mixing module;

- Single or combined silencing module;

- Combined silencing module with damper;

- Electric pre- or post-heating module;

- Humidification module

Attachments

To complete this manual, together with the delivery of the machine,
the following documents are issued:

- Electrical diagrams

- Operating manual

- Declaration of conformity

- Electrical panel certification

12

Summary of machine operation

RECOVERY AIR

SUPPLY AIR

Filter

INTERIOR

Supply

fan motor

assembly

Machine control
system

Heat

recuperator

by-pass

Filter

Recovery

fan motor

assembly

DamperRecuperator

EXTERNAL AIR

EXTERNAL

EXPULSION AIR

Damper

operational diagram of a left-hand machine (MODULAR PLATE)

1

Damper

EXHAUST AIR

Machine control
system

EXTERNAL

EXTERNAL AIR

Filter

RECOVERY AIR

INTERIOR

SUPPLY AIR

Damper

operational diagram of a right-hand machine (MODULAR ROTARY)

2

Filter

Heat

recuperator

Supply

fan motor

assembly

13

Adhesives on the machine

The following table describes the meaning of the various adhesives on the unit.

External air
right

Exhaust
air
right

Air supply
right

Extracted air
right

External air
left

Exhaust
air
left

Air supply
left

Extracted air
left

Damper

Drop
separator

Fans

Electric
coil

Cold water
inlet

Hot water
inlet

Cold water
outlet

Hot water
outlet

Heat
recuperator

Humidification

Heat
exchange
coil

Control

Liquid
coolant
inlet

Vapour
coolant
outlet

Condensate
drain

14

Filter

Silencer

Notes

15

Machine description (Modular Plate)

Filters

Particular care is taken in the selection and arrangement of
the filters within the section, supplied by certified and inter­nationally recognised producers.
Pocket filters are supplied with the machine. The custom­er can choose an efficiency class between ePM10 50% and
ePM1 80%. Compact prefilters are 48mm thick. The customer
can select an efficiency class between ISO Coarse 55% and
ePM10 75%, according to ISO 16890. The stability of the filters
is guaranteed by an exclusive POLYSEAL fixing system that
allows comfortable replacement and excellent seal.
All the filters are equipped with a differential pressure switch
that makes it possible to monitor the level of filter blockage.
The filters are always mounted to be extracted from the dirty
side, in order to maintain the seal and avoid the release of
dust and contaminants into the circuit during replacement.

Frame with supporting structure

The frame is made of extruded profiles in anodised alumini­um with a thermal break, having a 40x40 mm cross-section.
Coupling is done with nylon joints reinforced with glass fibre.
The profiles are always of the type with concealed screws,
double fins and chamber, making it possible to attach the
panels without the screw being visible from inside the ma­chine. This is an advantage, for both aesthetic and safety
reasons. If people must work inside the machine for mainte­nance or cleaning, they can work in total safety without run­ning the risk of injury. The interior of the machine is therefore
without protrusions or discontinuities in the profiles.

The units are equipped with a continuous base along the en­tire base and this is made entirely of aluminium (up to size 07
and in galvanized steel from Size 08 to 10).

The profiles have a thermal break, i.e., they are constructed
with an insulating element able to considerably limit the
thermal bridges towards the outside. This technology allows
reducing condensation on external surfaces and improves
the thermal insulation of the machines.

Seals

Sealing gasket in polyurethane, placed on door and panel
ledges.

16

Heat recuperators

The recovery sections are made using counterflow recuper­ators (Modular P). The exchange of energy between the out­door air and the recovered air makes it possible to pre-treat
the supply air, lowering the heat output necessary for the
complete treatment.

Doors and handles

Each door of the ventilating sections is equipped with a se­curity key, thus allowing access only to authorised personnel.
All locking handles on the same machine are identical.

Hinges

The hinges are made of black painted zamak alloy

Panels

The panels are made of double sheet metal folded into a box
enclosing the hot-injected polyurethane (density of 45 Kg/
m3 and fire reaction Class 1) or mineral wool (density of 120
Kg/m3 and fire reaction Class 0).

The material of the external sheet can be customised ac­cording to the need for resistance to corrosion, ranging from
Aluzinc to pre-painted sheet metal.
The panels are attached with stainless self-drilling screws
housed in nylon bushes: the latter are embedded in the pan­el and include a closing cap.
The use of stepped panels allows coupling with the profiles
that guarantees the continuity of the internal surface and a
better thermal insulation of the machine.

Fan motor assemblies

The fans used on the units are of
the EC type, procured from the
best manufacturers. This technolo­gy guarantees high efficiency and
reduced noise in extremely compact dimensions. The maintenance of these machines is very limited,
as the motor is directly keyed on the impeller.

17

Machine description (Modular Rotary)

Filters

Particular care is taken in the selection and arrangement of
the filters within the section, supplied by certified and inter­nationally recognised producers.
Pocket filters are supplied with the machine.
The customer can choose an efficiency class between ePM10
50% and ePM1 80%. Compact prefilters are 48mm thick. The
customer can select an efficiency class between ISO Coarse
55% and ePM1 80%, according to ISO 16890. The stability of
the filters is guaranteed by an POLYSEAL fixing system that
allows comfortable replacement and excellent seal.
All the filters are equipped with a differential pressure switch
that makes it possible to monitor the level of filter blockage.
The filters are always mounted to be extracted from the dirty
side, in order to maintain the seal and avoid the release of
dust and contaminants into the circuit during replacement.

Frame with supporting structure

The frame is made of extruded profiles in anodised alumini­um with a thermal break, having a 40x40 mm cross-section.
Coupling is done with nylon joints reinforced with glass fibre.
The profiles are always of the type with concealed screws,
double fins and chamber, making it possible to attach the
panels without the screw being visible from inside the ma­chine. This is an advantage both for aesthetic reasons and for
safety: if people must work inside the machine for mainte­nance or cleaning, they can work in total safety without run­ning the risk of injury. The interior of the machine is therefore
without protrusions or discontinuities in the profiles.

The units are equipped with a continuous base along the en­tire length and is made entirely of aluminium.

The profiles have a thermal break, i.e., they are constructed
with an insulating element able to considerably limit the
thermal bridges towards the outside. This technology avoids
condensation problems on external surfaces and improves
the thermal insulation of the machines.

Seals

Sealing gasket in polyurethane, placed on door and panel
ledges.

18

Rotary recuperators

All the rotary recuperators supplied comply with the latest
directives and regulations applicable to safety, performance
and labelling in force within the European Community.
There are “sorption” and condensing models, chosen by the
customer during the selection phase.
Each recuperator is equipped with a motor and transmission
with belt and pulley.
The inverter has a 230V/1ph/50-60Hz input power supply,
230V/3ph output power supply to the motor, IP54 protec­tion degree, 0-10V control analogue input, alarm relay out­put. Each rotary recuperator is equipped with an air-tight
brush-type seal with an internal plastic blade which ensures
greater seal along the entire perimeter of the wheel.

Doors and handles

Fan motor assemblies

Each door of the ventilating sections is equipped with a se­curity key, thus allowing access only to authorised personnel.
All locking handles on the same machine are identical.

Hinges

The hinges are made of black painted zamak alloy

Panels

The panels are made of double sheet metal folded into a box
enclosing the hot-injected polyurethane (density of 45 Kg/
m3 and fire reaction Class 1) or mineral wool (density of 120
Kg/m3 and fire reaction Class 0).

The material of the external sheet can be customised ac­cording to the need for resistance to corrosion, ranging from
Aluzinc to pre-painted sheet metal.
The panels are attached with stainless self-drilling screws
housed in nylon bushes: the latter are embedded in the pan­el and include a closing cap.
The use of stepped panels allows coupling with the profiles
that guarantees the continuity of the internal surface and a
better thermal insulation of the machine.

The fans used on the units are of
the EC type, procured from the
best manufacturers. This technolo­gy guarantees high efficiency and reduced noise in extremely compact dimensions. The maintenance
of these machines is simple and fast, as the motor is directly keyed on the impeller.

19

Parts and accessories

Dampers

The dampers of the Modular range are all made of aluminium with gasket,
with class II seal according to EN 1751. The external and exhaust air damp­ers can be equipped with a rainproof system or an anti-pest net.

Internal structure

The internal sheets used for attaching components like fans, filters and re­cuperators are entirely made of Aluzinc, guaranteeing high resistance to
corrosion. All points of contact with the internal section are equipped with

gaskets to ensure a superior seal against air leakage. The condensate col­lection tanks in the counter flow recuperators (Modular P) are made entirely of stainless steel, thus ensur­ing maximum durability. The welds of the exhaust pipe and of the edges are made of continuous wire in
an inert gas atmosphere.

Heat exchange coils (Only in the coil module)

The heat exchange coils are of the finned pack type. This component is made of copper tubes, aluminium
frame and BLUE FIN aluminium fins. Depending on the choices, the coils can use water or direct expan­sion. In both cases, the battery is controlled. In the case of DX units are supplied with “ERQ Daikin" control
board and "Daikin" electronic expansion valve mounted and connected. In the case of water batteries,
the control is entrusted to a three/two-way valve complete with modulating actuator supplied separately.

Condensate collection basins

The condensate collection tanks in the counter flow recuperators (Modular P) are made entirely of stain­less steel, thus ensuring maximum durability. The welds of the exhaust pipe and of the edges are made of
continuous wire in an atmosphere of inert gas: all the welds are protected with zinc-based paints.

Anti-vibration joints

On request, the units can be equipped with anti-vibration joints for the connection of the external air
ducts to the machine. These components are flanged and made of fire-retardant PVC-coated polyester
fabric.

Covering roof

The machines for outdoor use can be equipped with Aluzinc roofs, resistant to corrosion and therefore
ensuring the extreme durability of the component.

Silencers

With drawstring with 100 mm thick silencing partitions. The silencers are built according to the VDI6022
hygiene standard and the silencing material is rock wool protected by a flake-proof film compliant with
the VDI6022 standard. .

20

3

The means and method of transport must be chosen by the transport operator according to the type, weight and size of the
machine. If necessary, draw up a "safety plan" to guarantee the safety of the people directly involved.

Receipt of the cartons

Handle the equipment following the Manufacturer's instructions on the packaging and in this manual.
Always use personal protective equipment.

Upon receipt of the machine check the integrity of the packaging
and the amount of parcels sent:

A) There is visible damage/one or more cartons is missing: do not
install, but promptly notify the Manufacturer and the carrier that
made the delivery.
B) There is NO visible damage: move the machine to the site of
installation.

Read the packaging symbols

Externally, the packaging bears all the information necessary to transport the equipment safely: compli­ance with these instructions ensures operators are safe and prevents any damages to the equipment.

The figure shows the symbols applied to the packaging:

Indicates top and bottom

Indicates that the package must be stored in a dry place because its contents are sensitive
to humidity

Shows that the package must be handled with care because its contents are fragile

Shows the package's centre of gravity

Shows the position of the cables so that the package can be lifted correctly

Shows the maximum weight that can be placed on top of the package

21

4

Transport

Packages can be handled with a lifting hook or pallet truck of suitable capacity. The choice of the
most suitable means and method lies with the operator.

The operating area must be perfectly free from objects or people not involved in the transport.

If the unit is moved using hooks, use some spreader bars between the lifting cables to prevent
damage to the unit and ensure no excessive stress is placed on the side panels.

Lifting using hooks

Use hooks with a capacity adequate to the weight of the package to be lifted. Make sure that the safety

latch is in the correct position while lifting.

DO NOT move the equipment if the field of vision is poor or there are obstacles along the way (e.g.,
electric cables, beams, etc.). When the loads are lifted, the range of action of the lifting equipment
must remain free of persons.

Use perfectly serviceable hooks, chains or steel cables of adequate capacity and material, with-

out any joints or extensions. To guarantee efficiency, carry out periodic checks.

Make sure the ground the lifting equipment rests on is stable and not subject to subsidence. Check
the flatness of the ground. Do not move the lifting device with the machine suspended in the air.

Before lifting it, check the position of the centre of gravity and that the equipment is correctly

anchored to the lifting points provided, then slowly lift the package to the minimum height
necessary and move it carefully to prevent any dangerous vibrations.

Avoid sudden stops while lifting or lowering the package, to prevent any dangerous oscillations.

22

OK!

OK!

Lifting with ropes Lifting with eyebolts

15°

OK!

15°

15°

15°

Lifting with bracket + hook

(up to Size 07 with aluminium base)

OK!

23

Lifting using a pallet truck

OK!

If

transport is done using a pallet truck make sure it is suitable for the weight and size of the ma­chine. Insert the forks into the points provided for handling (usually in a central position) so as to
keep the centre of gravity of the load in balance. Move the equipment carefully, avoiding sudden
movements.

OK!

Lifting non-palletised equipment

The equipment must be lifted using tubes (not
supplied) inserted into the holes provided on the
apparatus (ø holes = 60 mm).

The type and diameter of the lifting tubes de­pend on the weight of the machine to handle. It
is the transport operator's responsibility to make
the right choice.
Use steel tubes that are in good condition and
undamaged.

The ends of the lifting tubes must be closed me­chanically to prevent them from coming out of

OK!

the holes provided.

Position the lifting ropes as shown in the figure,
in the part of the tube nearest the equipment.

24

ø 55 mm

20 cm

OK!

5

Unpacking and verification of integrity

We recommend the equipment be unpacked after moving it to its installation location and only when
it is to be installed. This operation must be performed using personal protection equipment (i.e., gloves,
safety shoes, etc.).

Do not leave the packing unattended: it is potentially harmful to children and animals (suffoca­tion hazard).

Some packing materials must be kept for future use (wooden crates, pallets, etc.), while those that
cannot be reused (i.e., polystyrene, strapping, etc.) must be disposed of in compliance with the
regulations in force in the country of installation: this will protect the environment!

After unpacking

After unpacking, check the integrity of the
machine and any additional modules.
In case of damaged or missing parts.

- Do not move, install or repair damaged components and

the machine in general.

- Take quality photos to document the damage.

- Find the serial number plate on the machine and note the

machine's serial number;

- Immediately notify the carrier that delivered the machine;

- Promptly contact the Manufacturer (keep on hand the serial

number of your machine).

Please note that complaints or claims of
damage reported after 10 days of receipt
of the machine cannot be accepted.

MANUFACTURER INFORMATION:
DAIKIN APPLIED EUROPE S.P.A.
Via Piani di Santa Maria, 72 - 00040 Ariccia (Roma) - Italy
Tel: [phone] - Fax: [phone]
http://www.daikinapplied.eu

C

I

F

A: Manufacturer's name and data
B: CE markings
C: Machine size
D: Unit reference in the order
E: Date of manufacture

A

F: Supply airflow rate
G: Delivery airflow rate
H: Electrical specifications (frequency, number

of phases, absorption in plate conditions)

I: Machine serial number

H

D

E

B

G

It is important to remove

Remove IMMEDIATELY

IMMEDIATELY

the lms at receiving

the protective lm on both the

the machine

sides and the top

25

Reading the serial number plate

A D T 01 H A W 1 14 0001 001

A AHU

D Daikin

T Modular with Plug & Play controls

01 Size 01
10 Size 10

A Modular P left
E Modular P right
F Modular R right
B Modular R left

C Polyurethane, pre-painted panel
D Mineral wool, pre-painted panel
R Polyurethane, aluzinc panel
S Mineral wool, aluzinc panel

W Water
D Direct expansion
N

No heat exchange coil or only electric coils for

thermal and gas exchange

V direct expansion coil + water coil

1 Made in Italy

14 Year of production (e.g., 14 = 2014)
0001 Project number
001 Machine number

26

Storage waiting for installation

Waiting for the installation, the components of the machine and the relative documents must be stored
in an area that:

- Is dedicated exclusively to the storage of the components.

- Is covered and protected from the weather (preferably prepare a closed area), with adequate temperature and humidity.

- Is accessible only to operators tasked with the assembly.

- Can support the weight of the equipment (check the load rating) and has a stable floor.

- Is free from other components, especially if they are potentially explosive/incendiary/toxic.

If you cannot proceed with the installation straight away, check periodically that the above-men­tioned conditions of the storage area are maintained and cover the machine with a canvas.

While waiting for the finale installation, always provide an insulating base (e.g., wood blocks) be-

tween the floor and the machine itself.

Correct storage awaiting installation

3

Any movement carried out after unpacking must be done with the doors closed. Do not move
the units by pulling on the doors, if present, the uprights or other protruding parts that are not
an integral part of the structure.

5÷35°C

90% max

Do not step on the units!

27

Notes

28

2A

6

There are two different types of hook, refer to the assembly instructions for the one in your possession.
Any movement carried out after unpacking must be done with the doors closed.
Do not move the units by pulling on the doors, if present, the uprights or other protruding parts that are
not an integral part of the structure.
Do not step on the units!
Before proceeding with the installation of the machine, it is necessary to prepare the power supplies and
utilities necessary for the correct operation of the system and, if required, consulting in advance with the
Manufacturer's Technical Office.
The machine does not require special environmental conditions for its operation. For a correct instal­lation it is sufficient to prepare a level support surface, indispensable for the correct operation of the
machine and to guarantee the regular opening of the inspection doors.
The altitude of the installation room must be less than 1,000 meters above sea level (at higher altitudes
the electric motors deliver powers lower than the nominal ones).
The installation in the workplace must be done in such a way that the machine and its equipment are
accessible to allow it to start, stop and carry out maintenance work on the machine.
For the choice of location, in general, care must be taken that an operator can move around the ma­chine without hindrance. The minimum distance to the nearest wall must in any case be at least equal
to the width of the machine.
Where there are no means of transport to move the machine, its positioning must take into account the
free space required for any repairs. It is of course necessary to plan enough space for regular operation,
as well as for machine maintenance, including all the space for any peripheral equipment.

Installation

All installation, assembly, electrical connections to the mains and extraordinary maintenance

must be performed only by qualied personnel authorised by the Retailer or Manufac-
turer, in compliance with the regulations in force in the country the equipment is to be used
and the standards on the systems and safety in the workplace.

During installation, the area must be free from people

and objects not used for the assembly.

Before starting, make sure you have all the necessary

equipment.

Use only equipment that is in good condition and un-

damaged.

To operate the machine requires:

- Electrical connections;

- Water connection;

- Air duct connection.

29

Installation procedure

Before installation, read the safety instructions on the first pages of this manual. Contact the Manufac­turer if any points are unclear or not perfectly understandable. A check mark next to each step will help
to confirm complete and proper installation.

Step 1: Position the unit ....................................................................................................................................................page 31

Step 2: Assemble the unit (if necessary) ................................................................................................................. page 32

Step 3: Fasten the units to the ground (optional) ............................................................................................page 35

Step 4: Make the connections ...................................................................................................................................... page 36

Step 5: Perform a trial run ................................................................................................................................................page 48

Step 6: Install the required filters .................................................................................................................................page 49

Step 7: Safety signs ...............................................................................................................................................................page 50

After installation store this manual and the assembly sheet that accompanied the machine in a place
that is dry and clean. This way it will be accessible to operators in the future who need to consult it.
Do not remove, tear out or write on any part of this manual besides the space set aside for notes:

Installer/maintenance notes

30

Step 1: Position the unit

Check that a suitable base has been prepared (fig. 4) for the support and installation of the machine. It
must be stable, perfectly flat, made of reinforced concrete and have the capacity to support the weight
of the machine.

For the size of the base and the weight to be supported, refer to the schematic delivered when
the machine was ordered.

The installation site must also include (fig. 4):

• Suitabledrainage to convey and drain the water in case of accidental breakage of pipes that carry

the fluids to the machine.

• Anelectrical system compliant with current regulations and with specifications that meet the needs

of the machine;

• Awater/gas connection (in the case of connection to coils supplied by water or gas).

• Adrainpipewithdrain siphon connected to the sewerage system.

• anaeraulic system (ducts for the air to be conveyed to the environments).

Position the unit above the base. Make sure that the area chosen for the placement has sucient space
to allow for subsequent installation and maintenance all around the unit (including replacement of any
internal components, for example the removal of heat exchange coils, filters, etc.) (fig. 5 indicates the
minimum distances to be maintained). It is advisable to check the extraction side of the components
before installing the machine.

Warning! The machines were designed to operate in technological spaces or outdoors. They
CANNOT operate in environments with explosives, where there is a high presence of dust, high
humidity or high temperatures unless specific modifications are requested during production.

Drainage

80 cm

L

80 cm

Single unit

4

5

L + 30 cm

Minimum distancesPreparations

31

Step 2: Assemble the unit (if necessary)

If additional modules are required, the units must be assembled directly at the installation site. The neces­sary components for the assembly of the sections are placed inside a section of the machine, adequately
protected.

Gently join the sections after attaching the adhesive seal supplied with the machine on the whole
perimeter of contact, just on one side.

Fasten all the coupling screws provided with the machine, and then level the modules. Tighten all the
coupling screws entering into the units through the inspection doors. Tighten all the other screws, bolts,
knobs and anything else that may have been previously dismantled. It is not recommended to remove
fixed panels during installation.

The drawings on the following pages represent a generic and stylised unit, however the

connection procedure is the same for all types of units.

32

2

3 x

TE8x30

3 x

ø 8,5

3 x

ø 8,5

1 x

M8

6

VDI 6022

33

7

2 x

TE8x35

2 x

ø 8,5

2 x

M8

34

1 x

TE8x35

1 x

ø 8,5

1 x

M8

Step 3: Fasten the units to the ground (optional)

After positioning the units, make sure they are perfectly level, if necessary inserting suitable solid and sta­ble shims under the supports.
Finish by fastening them to the ground (tools and fastening components not included). The installer is re­sponsible for choosing the most suitable means of fastening based on experience (the drawing includes
an example).

There is no need to insert vibration damping material between the machine and the ground as

the moving internal parts transmit no residual vibrations to the outside.

Example of floor mounting using steel brackets (not supplied)

8

35

Step 4: Make the connections

To operate the machine requires:

- An electrical connection.

- A water connection and drainage.

- A connection to the aeraulic circuit (air ducts).

Electrical connections

As to the power supply, an electrical cable must be connected to the machine:
single phase + neutral + earth (size 01 and 02).
three phase + neutral+ earth (size from 03 to 10);

(N.B.: The power supply of any electric batteries is separate from that of the unit and is always three-phase).
The cable must have a section adequate to the electrical absorption of the machine and the current
regulations. The total electric draw is shown on the machine's tag.

Always refer to the wiring diagram that is specic to the machine that you bought (it was
shipped with the unit). If it is not on the machine or has been lost, contact the salesperson of ref­erence who will send a copy (specify the machine's serial number).

Before connecting the machine make sure that:

• Thevoltageandfrequencyofthepowersupplycorrespondtotheparametersofthemachine.

• Theelectricalsystembeingconnectedhassucientcapacitytosupplythenominalelectricpowerof

the machine to be installed and meets current regulations.

The electrical connection must be:

• Performedbyqualiedpersonnelaftercuttingothefacility'spowersupply.

• Performed inaxed and permanentmanner,withoutintermediate splices,in accordance withthe

regulations of the country of installation.

• Thepowersupplyissucientforthemachine(seetechnicalspecications).

• Includesafunctioninggrounded plug; for multiple units it is necessary to combine them all with metal

ties.

• Preferablysituatedinadedicatedroom,locked and protected from atmospheric agents. If there is also

a key switch, the key must be removed when cutting the power supply and returned to its position
only after finishing service operations.

• Controlled by a multipolar switch with switching capacity equal to 60A suitable for the machine ab-

sorption.

During installation and maintenance, make sure that no other person besides the one who is
working has access to the electrical cabinets or switches.

The actual supply voltage of the user devices must not deviate more than 10% from the expected
nominal voltage. Higher voltage differences cause damage to users and to the electrical system, mal­functioning of fans, noise. It is therefore essential to check the alignment of the actual voltage values

with the nominal values.

36

The Manufacturer is not responsible for connections made in a manner that does not comply
with regulations, with the specifications of this manual, and in the event of tampering with any
electrical component of the machine.

QS1

L1 L2 L3 N

Size 01 ÷ 02
supply 230/1/50 (V-F-Hz)

Size 03 ÷ 10
supply 400/3/50 (V-F-Hz)

NB: Electric battery module power
supply always 400/3/50 (V-F-Hz)
separate from that of the unit.

9

Grounding

Example of electrical connection

10

Additional warnings regarding the connection to the power supply:

It is necessary to install a suitable differential-type protection upstream of the machine's power supply
connection points, in order to be able to isolate each of its elements in the event of malfunctions; the
choice of the differential protection device must not be in conflict with the provisions of the law, the local
regulations, the characteristics of the plant’s electrical system and of the machine itself.
They are recommended, where not in contrast with local laws or system characteristics, differential switch­es with adjustable current and trip time that cannot be affected by high frequency. The cables connecting
the various elements of the machine to the power supply must be shielded or must pass through metal
ducting, so as to reduce electromagnetic interference.
The shield or metal ducting must be earthed.
Once the system has been set up, the machine can be connected to the electricity supply network. The
actual supply voltage of the user devices must not deviate more than 10% from the expected normal volt­age. Higher voltage differences cause damage to users and to the electrical system, malfunctioning of fans,
noise. It is therefore essential to check the compliance of the actual voltage values with the nominal values.
Before connecting the electrical panel, make sure that, during installation and maintenance, no other per­son besides the one who is working has access to the electrical cabinets or switches.

After connecting, make sure that:

- The ground c

circuit, is contrary to safety regulations and is a source of danger that can damage the components of the machine.

- The connections are correct and the current consumption of the motor is lower than indicated on the nameplate.

onnection is sufficient (using the appropriate tool). An incorrect connection, ineffective and lacking the grounding

37

Water or coolant gas connections

Connections to water or to a coolant gas are required for the installation of a water or direct expansion coil
(optional).
For the water/gas supply it is necessary to connect the manifolds to piping having a size that is suf-
cient for the ow rates envisaged: in order to avoid damage to the heat exchange battery in corre­spondence with the junction between the steel fluid supply manifold and the copper circuits, it is neces­sary, when fixing the system pipe, to use a double wrench so as not to overload the battery connections.

In order to ensure optimum heat exchange of the coils it is necessary to:

• WASHthempriortoconnectingthemtothenetwork.

• Completely eliminate the air present in the water circuit using suitable valves.

Apart from the heat transfer fluid used, the thermal exchange with the air occurs in flow, with counter
flow injection with respect to the flow of the treated air. Connect the pipes following the indications of
the plates placed on the machine's panel.

Take care that no moisture or dirt enters the heat exchange coil.

11

38

Example of connection to water coils

WATER-BASED THERMAL EXCHANGE COILS

The heat exchange coils are installed with horizontal pipes.
The circuit pipes must have a size based on the nominal flow rate calculated from the thermal output of
the project and indicated in the data sheet of the unit.

Do not use the heat exchange coil connections to support the weight of the piping. It is neces­sary to prepare appropriate fasteners and brackets (not supplied).

Shut-o valves must be included to exclude the heat exchange coil from the water circuit.

In the heating coils, a stopped fan could lead to the overheating of the stagnant air in the ma­chine, with possible consequential damage to the motor, bearings, insulation and parts made of synthetic
material. To avoid such eventualities it is advisable to design the system so that a stopped fan will also stop
the passage of the heat transfer fluid.

Cold water
inlet

Hot water
inlet

Support
brackets

Cold water
outlet

Hot water
outlet

Shut-off
valve

12

Example of connection to water coils

39

DIRECT EXPANSION THERMAL EXCHANGE COILS

The filling by the installer must be performed according to current regulations and by authorised

personnel, authorised for the use and handling of coolants.

The heat exchange coils are installed with horizontal pipes.

Do not use the heat exchange coil connections to support the weight of the piping. It is neces-

sary to prepare appropriate fasteners and brackets (not supplied).

Shut-o valves must be included to exclude the heat exchange coil from the coolant circuit.

The system piping must be connected to the heat exchange battery with braze welding, circulating an-
hydrous nitrogen inside the pipes to prevent oxides from forming. The liquid suction pipes must be the
appropriate size for the expected potential and to ensure the circulation of the oil present in the coolant
even when the heat exchange coil operates at minimum load.

Use of wet patches to protect the plastic against the heat of the flame.

Shut-off
valve

Coolant
inlet

Vapour outlet

Condensate
drain

13

40

Example of connection to gas coils

Drain and siphon

In correspondence with the humidification sections and the thermal exchange cooling coils, the air han­dling units are equipped with a threaded drain that protrudes laterally for about 80 mm.
In order to allow a regular flow of water, each drain must be fitted with a properly sized SIPHON
(see fig. 14).

IMPORTANT

CONDENSATE COLLECTION TANK

Siphon

Condensate
collection tank

14

Drain siphon

Maximum siphon level

Siphon minimum height 100 mm

mm and a total static pressure ex­ceeding 1000Pa, increase the height
of the siphon by 10 mm every 10
mm of head and every 100Pa of to­tal static.

To avoid overflows from the collection tank
and consequent flooding of the machine as
well as the room in which it is installed, the si­phon must have a purge valve that allows the
removal of impurities deposited on the bot­tom.

In order not to affect the operation of the
drainage system, siphons operating under

With an upper fan head of about 100

x

pressure must NOT be connected to others
operating under vacuum.

15

drain
valve

Drain siphon

x+20 mm

AIR GAP

min 25 mm

2%

The drainage pipe to the sewerage network:

•Must not be connected directly to the si­phon. This in order to absorb returns of air

or slurry and to make the correct outflow of
waste water visible.

•Musthavealargerdiameteratthemachine

drain and a minimum inclination of 2% in or­der to ensure proper operation.

41

Aeraulic connections

If present, the air ducts must be connected to the joints or the circular attachments that may be provided
on the unit. If these components were not provided with the machine, the coupling can be made by con­necting directly to the machine's panels, making sure to insert a suitable anti-vibration system between
the unit and the duct.

If not using anti-vibration joints it is necessary to:

• Cleanthejointsurfacesbetweentheductandthemachine/coil.

• Applyagaskettotheangeinordertopreventairinltration.

• Carefullytightentheconnectingscrews.

• Usesiliconeonthegasketinordertooptimisetheseal.

If the connection is made with anti-vibration joints, when assembly is completed they should not be taut,
so as to avoid damage and the 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.

1

2

x4

x 1

42

3

100mm

250mm

250mm

250mm

x 1

100mm

10

100mm

4 5

ø5mm

43

6

OK!

NO!

7

44

8

H2O

SOAP

45

9

46

Notes

47

Step 5: Perform a trial run

To commission the machine it is necessary (tick "√" the operations completed):

Check the proper connection of the fluid inlet and outlet piping to the thermal (if present) ex­change coils (if present).

Vent the air from the heat exchange coils.

Check that there is a suitable siphon for all the water being drained.

Inspect the correct installation and adequate electrical connection of the energy recovery equip­ment, together with a mechanical and electrical check.

Insert an anti-vibration coupling between the machine and the ducts.

Check the tightening of screws and bolts (especially those used to attach motors and fans).

Check the integrity of the anti-vibration supports and the various accessories.

Remove extraneous materials (e.g., assembly sheets, tools, clips, etc.) and dirt (footprints, dust, etc.)
from inside the sections.

48

Step 6: Install the required filters

Verify proper installation of the prefilters located on special counter-frames with safety springs or guides.
After removing the filters from the packing (that they are placed in to prevent deterioration during trans­port and at the installation site), insert them into the containment section, paying attention to ensure a
rigid assembly and a perfect seal of the gaskets.

Remove the filters from their packaging only when ready to install them to avoid getting them
dirty and contaminating them.

Make sure that the inside of the filter is not contaminated by external agents.
This operation should be carried out after the first start-up of the machine, when the ducts are
cleaned of dust and various debris. Proceeding in this way preserves the filtering sections that

cannot be regenerated.

16

Installation of "pocket" filters and a pre-filter

To protect the components installed inside the unit, make sure that coarse filters (Prefilters) are
installed.

49

Step 7: Safety signs

The machine is supplied with the electricity-specific signs on the access doors to the fan sections.

The buyer must position other appropriate signs in the work area:

DO NOT REMOVE THE PROTECTIONS AND SAFETY DEVICES
DO NOT REPAIR  OIL  ADJUST  CLEAN MOVING PARTS

In addition, the space where the machine is positioned must be integrated into the general signage, spe­cific to the characteristics of the area and workplaces:

noise - movement - dangerous areas - escape route, etc.

PERSONAL PROTECTIVE EQUIPMENT

Personal protective equipment should be used when operating
the machine, suitable for use in accordance with company crite­ria and rules.
During machine maintenance, other preventive measures are
suggested in addition to the above: safety shoes, gloves, suita­ble clothing, always compatible with the use and according to
company guidelines.

TRAINING

It is the responsibility of the machine buyer/user to provide adequate instruction and training to machine
operators.

OPTIONAL

In agreed cases, additional training may be provided through the one-on-one instruction of operators by
the Manufacturer's technical staff.

50

7

After carrying out the above mentioned connections, it is necessary to set up the machine, according to
the following:

• Check that the batteries are correctly supplied (input / output).

• Ensure that all batteries are vented.

• Check that the drains are made and connected correctly, checking the correct flow of the condensate.

• Make the siphons and trigger them.

• Provide an anti-vibration joint between the ducts and the machine.

• Check the filters are installed correctly.

• Check the tightening of screws and bolts.

• Confirm that the structure is earthed.

• Confirm that the belt is correctly tensioned (only Modular rotary recuperator).

• Check that the recuperator belt is correctly tensioned (only Modular Rotary).

• Check the dampers are working correctly.

• Check that all the electrical components, such as microswitches, disconnectors, lights, pressure switch-

es, probes, inverters, etc. are correctly connected and powered.

• Remove any foreign materials from inside the machine.

• Check and keep the inside of the machine adequately clean.

• Remove the blocks of the rotary recuperators (Modular).

Commissioning

To perform the task in question, Personal Protective Equipment is required (for example, safety shoes,
safety glasses, helmet, gloves, etc.)

Once the operations to set up the machine after installation have been carried out, it is possible to pro­ceed with the commissioning of the machine.

To avoid damaging the machine, make sure that the machine's dampers are in the correct position.

Do not start the motor-fan units without first checking the completion of the machine connections with
all the necessary ducts.

Check the correct installation of the prefilters.
After removing the filters from the packaging (they are placed in to prevent deterioration during trans­port), insert the absolute and active charcoal pocket filters into the containment section, paying attention
to ensure a rigid assembly and a perfect seal of the gaskets.

51

To avoid damage to the battery, caused by ice, it is advisable to fill the water circuit with antifreeze liquid
or completely empty the battery if the air temperature can drop below 3°C.

Checking the machine safety devices
Checking the efficiency of the safety devices fitted on the machine MUST be carried out prior to com­missioning.

Microswitch (optional)
Use the following procedure:

- Open one of the inspection doors fitted with a microswitch on the machine.

- Check it is impossible to start the machine itself.

- Close the door and open another door fitted with a microswitch. Repeat the operation for all interlocked
inspection doors, checking each time that the machine cannot be started.

- Similarly, press the emergency button on the outside of the control panel and check that the machine
cannot be started.

Use of the machine

It is essential that any dampers on the system side are open for the correct operation of the machine and
to avoid sure breaking phenomena, open the dampers before starting ventilation.

I ON

0 OFF

The sequence that leads to the automatic start-up of the machine is as follows:

- Power the machine by acting on the general disconnector;

- Carry out the programming necessary for the correct operation of the machine;
The machine does not require further intervention by the operator as it has automated start-up and shut­down and is managed by the controller. If you want to permanently turn off the controller, you must turn
off the automatic management and intervene at the disconnector.

52

2A

8

Maintenance

Safety precautions for maintenance

Ordinary and extraordinary maintenance must be carried out solely by the operator assigned

to perform maintenance (mechanical and electrical maintenance staff ) according to the reg­ulations in force in the country of use and respecting the laws regarding systems and work
safety. Remember that, by operator assigned to perform maintenance is meant the person who
can work on the machine to perform ordinary and extraordinary maintenance, repairs and fine
tuning. This person must be an expert operator, properly instructed and trained, given the risks
involved in such operations.

Before performing any ordinary and extraordinary maintenance, the machine must always be

stopped (by disconnecting it from the mains) turning the master switch OFF,. The switch
must have a key that must be removed and held by the operator who will perform the opera­tions until the end of the maintenance itself.

It is absolutely prohibited to remove any protections from moving parts and unit protection

devices with the machine connected to the mains or operational. Adjustments made with safe­ty devices disengaged must be performed by a single person, expert and authorised, and
during this activity it is necessary to prevent access to the area of the machine by other people.
Upon completing the adjustments with safety devices disengaged, the protections must be
re-engaged as soon as possible.

During maintenance the operational space surrounding the machine for a distance of 1.5 me-

tres must be free of obstacles, clean and well lit. It is prohibited for unqualified people to pass
through or remain in this space.

Use personal protective clothing (safety shoes, safety glasses, gloves, etc.) compliant with regu-

lations.

Before carrying out repairs or other work on the machine, always declare out loud your inten-

tions to other operators who are located in the machine area and make sure that they have
heard and understood the warning.

When carrying out maintenance operations with the doors open, never enter the machine

and close the access doors behind you.

53

Ordinary maintenance

Proper maintenance of the systems maintains efficiency (reducing costs) and consistent performance
over time, and increase the usable life of the equipment.

ACTIVITY

General cleaning of the machine.
Check and possible disassembly and washing of the filters to be inspected accord-

ing to the conditions of use)
Replacing the filters (when they have deteriorated).
Cleaning the finned surfaces of the heat exchange batteries (if provided) with a jet

of compressed air or water and a soft brush (direction parallel to the fins).
Cleaning the heat recuperator exchange surfaces with compressed air / water jet

and a soft brush (direct. / to exchange packs).
Empty and clean the condensate collection basins.
Visual inspection for corrosion, limescale, release of fibrous substances, any damage,

abnormal vibrations, etc. (if possible, it is advisable to extract the components for a
more thorough inspection).

Check condensate drain and cleaning of siphons.
Check the status of anti-vibration connections.
Check tightness of screws and bolts in the fan section.
Check the impeller and various devices, with removal of any buildup.

FREQUENCY

A B C D E

Check the integrity of piping connected to pressure gauges and pressure switches.
Check and fine tune servo controls and lifting assemblies for actuating the gripping

dampers, and their lubrication.
Check the ground connection.
Visual check on the wheel face for dirt or deposits of dust and debris (Modular R)
check of the condition of the transmission belt for wear and wheel tension

(Modular R)
Check the clearance between seals and rotor by visual inspection and,

if necessary, correct it
Check and cleaning (if necessary) of the recuperator exchanger pack (Modular P)

A: annual / B: six months / C: quarterly / D: monthly / E: fortnightly

54

General information on cleaning procedures

Read the safety instructions at the beginning of this manual and page. 53

You should consult with your supplier of chemical products to choose the most suitable for clean-

ing the unit components.

For the cleaning method refer to the instructions of the detergent manufacturer and carefully
read the safety data sheet (SDS).

As general guidelines, refer to the following rules:

• Alwaysusepersonalprotection(safetyshoes,safetyglasses,gloves,etc.).

• Usemildproducts(pHbetween8and9)forwashinganddisinfecting,innormalconcentrations.De-

tergents must not be toxic, corrosive, flammable or abrasive.

• Useasoftclothorbristlebrushesthatdonotdamagethestainlesssteelsurfaces.

• Ifyouusewaterjets,thepressureshouldbelessthan1.5barandthetemperaturemustnotexceed80°C.

• Forcleaningcomponentslikemotors,dampermotors,bearings,pitottubes,ltersandelectronicsen-

sors (if applicable), do not spray water directly on them.

• Aftercleaningmakesurethatyouhavenotdamagedtheelectricalpartsandtheseals.

• Cleaning operationsshould notinvolve thelubricated parts, likerotation shafts,because thiscould

affect their good operation and create problems with durability.

• Forthecleaningofnnedcomponentsordampersuseanindustrialvacuumcleanerand/oracom­pressor. Attention, the compressed air flow must run opposite to the direction of the airflow through
the unit and parallel to the fins.

Cleaning lters

The machine must NOT be running when the filters are removed to avoid drawing in outside air

that might be contaminated.

The filters must be cleaned often and carefully to prevent dust and microbial build-up. Usually, compact
filters can be cleaned two or three times (replacement is anyway recommended in preference to wash­ing) before they are replaced. As a general rule, replacement is required after 500-2000 hours of operation
(it varies depending on the type of filter, refer to the directions of the Manufacturer), but may need to be
replaced much sooner if required.

Compact lters can be cleaned using a vacuum cleaner or by blowing with compressed air or hot water
(not under pressure).

Pocket lters cannot be cleaned and must be changed after their life cycle.

Cleaning lamellar components

Remove the dust and fibres with a soft bristle brush or a vacuum cleaner.

Be careful when cleaning with compressed air because the exchanger package can be damaged.
CLEANING with pressure jets is allowed if the maximum water pressure is 3 bar and a flat nozzle

is used (40° - WEG 40/04 type).
Oils, solvents, etc. can be removed with water or hot grease solvents, by washing or immersion.
Periodically clean the condensate drain tray and fill the drain siphon with water.

55

Dampers

Dampers and their mechanism can be cleaned first with compressed air, then with a slightly alkaline de­tergent. Particular attention should be paid to the levers of the actuation system.
Seals should be checked at regular intervals.
Also check if there is good rotation of the fins and the lubrication of the mechanisms. If necessary use
molybdenum disulphide oil in a spray as it is possible to direct the flow where it is needed.

Exchange coils

The coils must be cleaned at the slightest sign of contamination.

The coil should be cleaned and washed gently to avoid damaging the fins.

For cleaning using a mild detergent suitable for the purpose. Do not use alkaline, acidic or chlorine-based
solutions.
THE coils can be washed with a slightly pressurised water jet (max. 1.5 bar). The jet must NOT contain
chemicals or microorganisms. Moreover the water must be sprayed in the opposite direction to the air
flow and parallel to the fins.

For the direct expansion system, all the coolant in the batteries must be collected in the receiver before
washing the coil with water. This makes it possible to avoid the increase of the pressure and damage to
various parts of the pipe, keeping the airflow clean.

Alternatively, it is possible to remove the batteries from the unit during cleaning. Avoid exposing them to
the light and keep them in the dark.

For the cleaning of the injection tubes, you can access the distributor by removing the protective metal
foil. Clean it with a soft brush and water, or if it is very dirty use a disinfectant diluted in water.

Fans

The fans can be cleaned with compressed air or by brushing them with soap and water or with a mild
detergent. Finish cleaning by rotating the impeller by hand to check there are no abnormal noises.

Vents

Periodically check that there are no new sources of contamination near the air intake. Each component
must be checked periodically for the presence of contamination, damage and corrosion. The seal can be
protected with glycerine-based lubricants or replaced with a new one, if worn.

56

Lights

The lights are made of polycarbonate in a coated steel frame. Clean them with a mild detergent or with a
disinfectant suitable for the purpose.
Pay particular attention to the polycarbonate glass, which should be inspected at regular intervals, as
shown in the maintenance schedule (“General cleaning of the machine” line).

Exchangers

If there are dirt and dust deposits on the exchangers, these can be easily removed, using one of the fol­lowing methods:

- vacuum cleaner, if there is not too much dirt;

- compressed air, if it is very dirty, but it is not firmly fixed, being careful not to damage the wheel;

- hot water (70°C max.) or detergent spray (e.g. Decade, ND-150, Chem Zyme, Primasept, Poly-Det, Oakite
86M or similar) to remove fatty deposits, if the dirt is firmly fixed to many elements.

57

Extraordinary maintenance

One can not predict extraordinary maintenance as it is normally due to effects of wear or fatigue caused
by the incorrect operation of the machine.

Replacement of parts

The replacement of parts should be performed by expert personnel:

• Qualiedmaintenancemechanic

• Qualiedmaintenanceelectrician

• Manufacturertechnician

The machine is designed to be able to perform all the servicing necessary to maintain good efficiency of
the components. However, it sometimes happens that a component fails due to malfunction or wear, so
for replacement refer to the executive schematic.
These are the components that may need replacement:

• Filters

• rotaryrecuperatorbelts(ModularR)

• Fan

• Recovery/heating/coolingheatexchangecoil

For some of these operations of a general nature we will not enter into detail as these are operations that
fall within the abilities and professional expertise of the staff assigned to perform them.

Consumable components - Spare parts

During the operation of the machine there are particular mechanical and electrical components that are
most subject to wear. These parts must be monitored in order to carry out their replacement or repair
before they cause problems to the correct operation of the machine with consequent downtime.

Some parts subject to wear

• cell/pocket/activatedcharcoallters

• rotaryrecuperatortransmissionbelts(ModularR)

• Humidicationaccessories

The annexes will include a sheet listing the parts subject to wear specific to the machine ordered. For
special components like bearings, crankshaft, etc., see the specific annexes detailing the technical speci­fications.
To purchase the spare parts needed for normal and/or extraordinary maintenance, contact Daikin specify­ing the serial number of the machine noted in the documentation and on the machine's plate.

58

Disposal of used materials - waste

DEFINITION OF WASTE

Waste is any substance and object deriving from human activities or natural cycles that is abandoned or
destined to be abandoned.

SPECIAL WASTE

Special waste includes:

• Residues from industrial, agricultural, artisanal, commercial and service processes that in quality or

quantity are considered different from municipal waste.

• Deterioratedorobsoletemachineryandequipment.

• Motorvehiclesandtheirpartsthatcannolongerbeused.

HARMFUL TOXIC WASTE

Harmful toxic waste is all waste containing or contaminated by substances listed in the annex to the Italian
Presidential Decree 915/52 implementing directives 75/442/EEC, 76/442/EEC, 76/403/EEC, 768/319/EEC.
Following are described the types of waste that may be generated during the lifetime of an air handling unit:

• Cellltersfromthesuctionunit.

• Wasteoilsandgreasesfromlubricatingthefanmotorassembly.

• Ragsorpapersoakedwithsubstancesusedforthecleaningofthevariouspartsofthemachine.

• Residuesfromcleaningthepanelling.

• Drivebelts.
• UV germicidal lamps, which must be disposed of according to current legislation.

Waste from the cell filters are to be handled as special waste or harmful toxic depending on their

use, the sector and the environment in which they are used.

Waste and scraps may cause irreparable damage if dispersed in the environment.

ELECTRICAL/ELECTRONIC WASTE

Under art. 13 of Italian Legislative Decree no. 49 of 2014 "Implementation of the WEEE Directive 2012/19/EU on electrical and elec­tronic equipment waste.

The logo with the crossed-out bin specifies that the product has been placed on the market after 13 August 2005 and that
at the end of its useful life it should not be disposed of with other waste but rather must be collected separately. All equip­ment is made from recyclable metallic materials (stainless steel, iron, aluminium, galvanised steel, copper, etc.) in a percent-

age higher than 90% by weight. Before disposal make the equipment unusable by removing the power cord and closing any
devices for closing compartments or cavities (where present). It is necessary to pay attention to the management of this product at
the end of its life by reducing its negative impact on the environment and improving the effective use of resources, applying the
principles of "he who pollutes pays", prevention, preparation for reuse, recycling and recovery. Remember that the illegal or improper
disposal of the product may result in the application of sanctions provided for by current provisions of law.

Disposal in Italy

In Italy WEEE equipment must be delivered:

- To Collection Centres (also called ecological islands or ecological platforms).

- To the dealer from whom the new equipment was purchased, which is required to collect it free of charge ("one to one" withdrawal).

Disposal in countries of the European Union

The EU Directive on WEEE equipment has been implemented differently by each country, so to dispose of this equipment we suggest
contacting local authorities or the dealer to ask for the correct method of disposal.

59

Diagnostics

General diagnostics

The machine's electrical system includes quality electromechanical components and is therefore ex­tremely durable and reliable over time.
Should there be any malfunctions due to malfunctions of electrical components it will be necessary to
act as follows:

• Checkthefusesofthepowersupplyforthecontrolcircuitsandifnecessaryreplacethemwithfuses

having the same specifications.

• Checkifthethermalprotectionswitchforthemotorhasbeentriggeredorifitsfuseshaveblown.

If this has occurred, it may be caused by:

• Motoroverloadduetomechanicalproblems.Theyneedtobesolved.

• Incorrectsupplyvoltage.Verifytheprotectiontripthreshold.

• Malfunctionand/orshortcircuitsinthemotor.Identifyandreplacethefailedcomponent.

Electrical maintenance

The machine does not require routine maintenance repairs.
Do not modify the machine for any reason and do not add other devices.
The manufacturer is not liable for resulting malfunctions and problems.
Further clarification is available by contacting the manufacturer's Customer Service.

60

Troubleshooting table

MALFUNCTION TYPE COMPONENT POSSIBLE CAUSE/SOLUTION

Impeller deformed, unbalanced or loose

NOISE

INSUFFICIENT AIR FLOW

EXCESSIVE AIR FLOW

INSUFFICIENT THERMAL
EFFICIENCY

WATER LEAK

Fan impeller

Ducts

Ducts

Filters too dirty

Heat exchange coils too dirty

Ducts

Machine

Heat exchange coil

Electric pump

Fluid

Heat exchange coil

Fan section

Nozzle damaged

Foreign bodies in the fan

Excessive speed in the ducts

Anti-vibration joint too taut

Load losses superior to the demand

Dampers closed

Obstructions in the ducts

Load losses inferior to the demand

Ducts too big

Terminals not installed

Transducer failure

(with pressure control set point too high)

Filters not inserted

Access doors open

Dampers not calibrated

Incorrect connection of inlet/outlet piping

Heat exchange coil dirty

Air bubbles in the pipes

Excessive air flow

Insufficient water flow

insufficient pressure

Wrong direction of rotation

Temperature different from the project

Incorrect or faulty regulation bodies

Leak from the heat exchange coil due to

Dragging of drops due to high air velocity

Siphon faulty or not working

Clogged "overflow" drain

corrosion

61

Repair log

DAT E SERVICE TYPE TIME REQUIRED SIGNATURE

62

2A

9

ON-OFF switch emergency button

lock

main menu

Green LED: the unit is working
properly
Orange LED: an alarm has been
triggered

Use

I ON

0 OFF

increases the values

opens the alarms screen

brings up the previous
page

Refer to the Operating Manual for more detailed information on the use of the machine.

decreases the values

when pressed confirms

the entered value

Via Piani S. Maria, 72 - 00072 Ariccia (Rome) Italy - www.daikinapplied.eu

This publication is drawn up only as a technical support and does not constitute a binding commitment
for Daikin Applied Europe S.p.A. Daikin Applied Europe S.p.A. has drawn up the content to the best of
its ability.

No explicit or implicit guarantee is given as to the completeness, precision or reliability of its
content. All the data and specifications contained herein are subject to change without notice. The
data stated at the time of the order prevail. Daikin Applied Europe S.p.A. accepts no liability whatso­ever for any direct or indirect damage, in the broadest sense of the word, deriving from or associated
with the use and/or interpretation of this publication.
All content is protected by the copyright of Daikin Applied Europe S.p.A.

D-EIMAH00211-19_00EN