SystemAir CO 35, HP 20, HP 25, HP 30, HP 35 Installation And Maintenance Manual

English Deutsch EspañolItalianoFrançais

Air Cooled Water Chillers and Heat Pumps

Refroidisseurs de Liquid à Condensation par l’Air et Pompes à Chaleur Eau/Eau
Luftgekühlte Flüssigkeitskühler und Wärmepumpen
Refrigeratori d´Acqua e Pompe di Calore Acqua Raffreddati ad Aria
Enfriadores de Agua y Bomba de Calor Condensadascon Aire

Installation and maintenance manual

Manuel d'installation et de maintenance
Installations- und Wartungshandbuch
Manuale di installazione e di manutenzione
Manual de instalación y de mantenimiento

SYSCROLL 20-35 Air CO/HP

Part number / Code / Code / Codice / Código : 361790
Supersedes / Annule et remplace / Annulliert und ersetzt / Annulla e sostituisce /
Anula y sustituye : None / Aucun / Nicht / Nulla / Ninguno
Notified Body / Organisme Notifié / Benannte Zertifizierungsstelle / Organismo
Notificato / Organismo Notificado N°. 1115

20

!

33 kW

21

!

35 kW

ISO 9001 certified management system

1

English

Table of Contents

1 - FOREWORD

1.1 Introduction ..........................................................................2

1.2 Warranty ..............................................................................2

1.3 Emergency stop / Normal stop .............................................2

1.4 An introduction to this manual ..............................................2

2 - SAFETY

2.1 Foreword ..............................................................................3

2.2 Definitions ............................................................................4

2.3 Access to the unit ...............................................................4

2.4 General precautions..............................................................4

2.5 Precautions against residual risks ......................................... 4

2.6 Precautions during maintenance operations ..........................5

2.7 Safety labels ................................................................. 6 & 8

2.8 Safety regulations ........................................................9 to 11

3 - TRANSPORT, HANDLING AND STORAGE

3.1 Inspection ..........................................................................12

3.2 Handling ............................................................................12

3.3 Anchoring ..........................................................................13

3.4 Storage ..............................................................................13

4 - INSTALLATION

4.1 Installation site ...................................................................14

4.2 External water circuit .................................................14 to 15

4.3 Water connections .............................................................16

4.4 Defrost water drainage (SYSCROLL Air HP only) ................ 16

4.5 Water buffer tank ...................................................... 16 & 17

4.6 Power supply .....................................................................17

4.7 Electrical connections................................................18 to 19

5 - START-UP

5.1 Preliminary checks ............................................................. 20

5.2 Start-up .............................................................................20

5.3 Checking the operation ....................................................... 20

5.4 Delivery to the customer .....................................................20

6 - CONTROL

6.1 Control of a single compressor unit ....................................21

6.2 Keypad functions ...............................................................21

6.3 Folder structure ..................................................................22

6.4 Menu structure ...................................................................22

6.5 Alarm list ...........................................................................23

7 - PRODUCT DESCRIPTION

7.1 General information ............................................................24

7.2 Accessories ..............................................................25 to 27

7.3 Refrigeration circuits .................................................28 to 29

8 - TECHNICAL DATA

8.1 Hydraulic features ..............................................................30

8.2 Physical data.............................................................31 to 32

8.3 Electrical data .....................................................................33

8.4 Position of shock adsorbers

and weight distribution on supports ....................................34

8.5 Dimensional Drawings SYSCROLL 20-35 CO/HP ................35

8.6 Dimensional Drawings SYSCROLL 20-35 CO/HP +

HYDROKIT .........................................................................36

8.7 Space requirements ...........................................................37

9 - MAINTENANCE

9.1 General requirements .......................................................38

9.2 Planned maintenance ........................................................38

9.3 Refrigerant charge .............................................................39

9.4 Compressor ......................................................................39

9.5 Condenser .......................................................................39

9.6 Fans .................................................................................39

9.7 Dehydrating filter ...............................................................39

9.8 Sight glass ........................................................................40

9.9 Thermostatic expansion valve............................................40

9.10 Evaporator ........................................................................40

10 - TROUBLESHOOTING

10 Troubleshooting ................................................................41

11 - SPARE PARTS

11.1 Spare part list.....................................................................42

11.2 Oil for compressors ............................................................42

11.3 Wiring diagrams .................................................................42

12 - DISMANTLING, DEMOLITION AND SCRAPPING

12.1 Generalities ........................................................................ 43

2

1 - Foreword

1.1 Introduction

Units, manufactured to state-of-the-ar t design and implementation
standards, ensure top performance, reliability and fitness to any type
of air-conditioning systems.

These units are designed for cooling water or glycoled water (and for
water heating in heat pump models) and are unfit for any purposes
other than those specified in this manual.

This manual includes all the information required for a proper
installation of the units, as well as the relevant operating and
maintenance instructions.

It is therefore recommended to read this manual carefully before
installation or any operation on the machine. The chiller installation
and maintenance must be carried out by skilled personnel only
(where possible, by one of Authorised Service Centers).

The manufacturer may not be held liable for any damage to people or
property caused by improper installation, star t-up and/or improper
use of the unit and/or failure to implement the procedures and
instructions included in this manual.

1.2 Warranty

These units are delivered complete, tested and ready for being
operated. Any form of warranty will become null and void in the event
that the appliance is modified without manufacturer’s preliminary
written authorisation.

This warranty shall apply providing that the installation instructions
have been complied with (either issued by manufacturer, or deriving
from the current practice), and the Form 1 (“Start-up”) has been
filled-in and mailed to manufacturer (attn. After-Sales Service).

In order for this warranty to be valid, the following conditions shall
be met:

! The machine must be operated only by skilled personnel from

Authorised After-Sales Service.

! Maintenance must be performed only by skilled personnel - from

one of Authorised After-Sales Centers.

! Use only original spare par ts.

! Carry out all the planned maintenance provided for by this manual

in a timely and proper way.

Failure to comply with any of these conditions will automatically void
the warranty.

1.3 Emergency stop / Normal stop

The emergency stop of the unit can be enabled using the master
switch on the control panel (move down the lever).

For a normal stop, press the relevant push-buttons.

To restart the appliance, follow the procedure detailed in this manual.

1.4 An introduction to the manual

For safety reasons, it is imperative to follow the instructions given
in this manual. In case of any damage caused by non-compliance
with these instructions, the warranty will immediately become null
and void.

Conventions used throughout the manual:

DANGER

The DANGER sign recalls your attention to
a certain procedure or practice which, if not
followed, may result in serious damage to
people and property.

WARNING

The WARNING sign precedes those procedures
that, if not followed, may result in serious
damage to the appliance.

NOTE

The NOTE contain important observations.

USEFUL TIPS

The USEFUL TIPS provide valuable information
that optimises the efficiency of the appliance.

This manual and its contents, as well as the documentation which
accompanies the unit, are and remain the property of manufacturer,
which reserves any and all rights thereon. This manual may not
be copied, in whole or in part, without manufacturer’s written
authorization.

3

English

2 - Safety

2.1 Foreword

These units must be installed in conformity with the
provisions of Machinery Directive 2006/42/EC, Low Voltage
Directive 2006/95/EC, Pressure Vessels Directive 97/23/
EC, Electromagnetic Interference Directive 2004/108/EC,
as well as with other regulations applicable in the country
of installation. If these provisions are not complied with, the
unit must not be operated.

DANGER

The unit must be grounded, and no
installation and/or maintenance operations
may be carried out before deenergising the
electrical panel of the unit.

Failure to respect the safety measures mentioned above may result
in electrocution hazard and fire in the presence of any short-circuits.

DANGER

Inside the heat exchangers, the compressors
and the refrigeration lines, this unit contains
liq u i d a n d g a se o u s r e fri g e ra n t u nd e r
pressure. The release of this refrigerant may
be dangerous and cause injuries.

DANGER

The units are not designed to be operated with
natural refrigerants, such as hydrocarbons.
Manufacturer may not be held liable for any
pr oblem s der iving from the repla cemen t
of original refrigerant or the introduction of
hydrocarbons.

Units are designed and manufactured according to the requirements
of European Standard PED 97/23/EC (pressure vessels).

! The used refrigerants are included in group II (non-hazardous

fluids).

! The maximum working pressure values are mentioned on the

unit’s data plate.

! Suitable safety devices (pressure switches and safety valves)

have been provided, to prevent any anomalous overpressure
inside the plant.

! The vents of the safety valves are positioned and oriented in such

a way as to reduce the risk of contact with the operator, in the
event that the valve is operated. Anyway, the installer will convey
the discharge of the valves far from the unit.

! Dedicated guards (removable panels with tools) and danger signs

indicate the presence of hot pipes or components (high surface
temperature).

DANGER

The guards of the fans (only for units provided
with air heat exchan gers) m ust be always
mounted and must never be removed before
de-energising the appliance.

DANGER

It is the User’s responsibility to ensure that
the unit is fit for the conditions of intended use
and that both installation and maintenance are
carried out by experienced personnel, capable
of resp e c t i n g all th e r e c o mmendati o n s
provided by this manual.

It i s i mportan t that th e unit is adequ ately
supported, as detailed in this manual. Non­compliance with these recommendations may
create hazardous situations for the personnel.

DANGER

The unit must rest on a base which meets the
characterist ics specified in this manual; a
base with inadequate characteristics is likely
to become a source of serious injury to the
personnel.

WARNING

Th e un it h a s no t be en de sign to w ithst and
loads and/or stress that may be transmitted by
adjacent units, piping and/or structures.

Each external load or stress transmitted to the
unit may break or cause breakdowns in th e
unit’s structure, as well as serious dangers to
people. In these cases, any form of warranty will
automatically become null and void.

WARNING

The packaging material must not be disposed of
in the surrounding environment or burnt.

4

2 - Safety

2.2 Definitions

OWNER: means the legal representative of the company, body or

individual who owns the plant where unit has been installed; he/she
has the responsibility of making sure that all the safety regulations
specified in this manual are complied with, along with the national
laws in force.

INSTALLER: means the legal representative of the company who has
been given by the owner the job of positioning and performing the
hydraulic, electric and other connections of unit to the plant: he/she
is responsible for handling and properly installing the appliance, as
specified in this manual and according to the national regulations in
force.

OPERATOR: means a person authorised by the owner to do on unit
all the regulation and control operations expressly described in this
manual, that must be strictly complied with, without exceeding the
scope of the tasks entrusted to him.

ENGINEER: means a person authorised directly by manufacturer or,
in all EC countries, excluding Italy, under his full responsibility, by
the distributor of product, to perform any routine and extraordinary
maintenance operations, as well as any regulation, control, servicing
operations and the replacement of pieces, as may be necessary
during the life of the unit.

2.3 Access to the unit

The unit must be placed in an area which can be accessed also
by OPERATORS and ENGINEERS; otherwise the unit must be
surrounded by a fence at not less than 2 meters from the external
surface of the machine.

OPERATORS and ENGINEERS must enter the fenced area only
after wearing suitable clothing (safety shoes, gloves, helmet etc.).
The INSTALLER personnel or any other visitor must always be
accompanied by an OPERATOR.

For no reason shall any unauthorised personnel be left alone in
contact with the unit.

2.4 General precautions

The OPERATOR must simply use the controls of the unit; he must not
open any panel, other than the one providing access to the control
module.

The INSTALLER must simply work on the connections between plant
and machine; he must not open any panels of the machine and he
must not enable any control.

When you approach or work on the unit, follow the precautions listed
below:

! do not wear loose clothing or jewellery or any other accessory tat

may be caught in moving parts

! wear suitable personal protective equipment (gloves, goggles

etc.) when you have to work in the presence of free flames
(welding operations) or with compressed air

! if the unit is placed in a closed room, wear ear protection devices

! cut off connecting pipes, drain them in order to balance the

pressure to the atmospheric value before disconnecting them,

disassemble connections, filters, joints or other line items

! do not use your hands to check for any pressure drops

! use tools in a good state of repair; be sure to have understood the

instructions before using them

! be sure to have removed all tools, electrical cables and any other

objects before closing and starting the unit again

2.5 Precautions against residual risks

Prevention of residual risks caused by the control
system

!" be sure to have perfectly understood the operating instructions

before carrying out any operation on the control panel

! when you have to work on the control panel, keep always the

operating instructions within reach

! star t the unit only after you have checked its perfect connection

to the plant

! promptly inform the ENGINEER about any alarm involving the unit

! do not reset manual restoration alarms unless you have identified

and removed their cause

Prevention of residual mechanical risks

! install the unit according to the instructions provided in this

manual

! carry out all the periodical maintenance operations prescribed by

this manual

! wear a protective helmet before accessing the interior of the unit

! before opening any panelling of the machine, make sure that it is

secured to it by hinges

! do not touch air condensation coils without wearing protective

gloves

! do not remove the guards from moving elements while the unit is

running

! check the correct position of the moving elements’ guards before

restarting the unit

Prevention of residual electrical risks

! connect the unit to the mains according to the instructions

provided in this manual

! periodically carry out all the maintenance operations specified by

this manual

! disconnect the unit from the mains by the external disconnecting

switch before opening the electrical board

! check the proper grounding of the unit before star t-up

! check all the electrical connections, the connecting cables, and in

particular the insulation; replace worn or damaged cables

5

English

2 - Safety

! periodically check the board’s internal wiring

! do not use cables having an inadequate section or flying

connections, even for limited periods of time or in an emergency

Prevention of other residual risks

! make sure that the connections to the unit conform to the

instructions provided in this manual and on the unit’s panelling

! if you have to disassemble a piece, make sure that it has been

properly mounted again before restarting the unit

! do not touch the delivery pipes from the compressor, the

compressor and any other piping or component inside the
machine before wearing protective gloves

! keep a fire extinguisher fir for electrical appliances near the

machine

! on the units installed indoor, connect the safety valve of the

refrigeration circuit to a piping network that can channel any
overflowing refrigerant outside

! remove and leak of fluid inside and outside the unit

! collect the waste liquids and dry any oil spillage

! periodically clean the compressor compartment, to remove any

fouling

! do not store flammable liquids near the unit

! do not disperse the refrigerant and the lubricating oil into the

environment

! weld only empty pipes; do not approach flames or other sources

of heat to refrigerant pipes

! do not bend/hit pipes containing fluids under pressure

2.6 Precautions during maintenance operations

Maintenance operations can be carried out by authorised technicians
only.

Before performing any maintenance operations:

! disconnect the unit from the mains with the external disconnecting

switch

! place a warning sign “do not turn on - maintenance in progress”

on the external disconnecting switch

! make sure that on-off remote controls are inhibited

! wear suitable personal protective equipment (helmet, safety

gloves, goggles and shoes etc.)

To carry out any measurements or checks which require the
activation of the machine:

! work with the electrical board open only for the necessary time

! close the electrical board as soon as the measurement or check

has been completed

! for outdoor units, do not carry out any operations in the presence

of dangerous climatic conditions (rain, snow, mist etc.)

The following precautions must be always adopted:

! do not scatter the fluids of the refrigeration circuit in the

surrounding environment

! when replacing an eprom or electronic cards, use always suitable

devices (extractor, antistatic bracelet, etc.)

! to replace a compressor, the evaporator, the condensing coils or

any other weighty element, make sure that the lifting equipment is
consistent with the weight to be lifted

! in air units with independent compressor compar tment, do not

access the fan compar tment unless you have disconnected the
machine by the disconnecting switch on the board and you have
placed a warning sign “do not turn on - maintenance in progress”

! contact manufacturer for any modifications to the refrigeration,

hydraulic or wiring diagram of the unit, as well as to its control
logics

! contact manufacturer if it is necessary to perform very difficult

disassembly and assembly operations

! use only original spare parts purchased directly from manufacturer

or the official retailers of the companies on the recommended
spare parts list

! contact manufacturer if it is necessary to handle the unit one year

after its positioning on site or if you wish to dismantle it.

6

2 - Safety (continued)

2.7 Safety labels

Identification of the unit Outside,

on the left -hand front column

Pump operation - Outside, on the left-hand front column

Instruction for the movimentation - Outside the packaging

Sequence phase control on the electrical board

Gravity centre - Base Instruction for the lifting

TENERE SU QUESTA LINEA

GANCIO DI SOLLEVAMENTO

KEEP LIFT HOOK

ON THIS LINE

MIN. 5 cm

7

English

2 - Safety (continued)

Grounding connection on the electrical board,

adjacent to the connection

Read the instruction on the electrical board

Fitting identification - Adjacent to fittings

Electrical warning

Adjacent to the master switch

ATTENZIONE !

Prima di

aprire togli ere

tensione

CAUTION !

Disconnect

electrical

supply befor e

opening

ACHTUNG !

Vor offn en des

gehauses

hauptschalte r

ausschalten

ATENCION !

Cor tar la

corrente ant es

de abrir

el aparato

ATTENTION !

Enlever

l’alimentati on

electrique

avant d’ouvr ir

Commissioning - Outside, on the left-hand front column

Final Test Certificate - Inside the external door

8

Fan Danger

2 - Safety (continued)

Identification of refrigerant - Below identification of the unit

Parameter configuration - Inside the electrical board

Pump drain - Outside, on the left-hand front column

Circuit drain - Outside, on the left-hand front column

Filter / flow switch - Outside, on the left-hand front column

ATTENTION! Don’t leave the unit with water inside hydraulic circuit during
winter or when it is in stand by.
ATTENZIONE! Non lasciare l’unità con acqua nel circuito idraulico durante
l’inverno o quando non è funzionante.
ATTENTION! Ne laissez pas l’unitè avec de l’eau dans le circuit hydraulique
pendant l’hiver ou quand elle ne travaille pas.
WARNUNG! Lassen Sie nicht das Wasser in die Schaltung während des
Winters oder wenn es nicht funktionient.
¡ATENCÍON! No deje el agua en el circuito hidráulico durante el invierno o
cuando no esta trabajando.

9

English

2 - Safety

REFRIGERANT DATA SAFETY DATA: R410A

Toxicity Low.

Contact with skin

If sprayed, the refrigerant is likely to cause frost burns. If absorbed by the skin, the danger is very limited;
it may cause a slight irritation, and the liquid is degreasing. Unfreeze the affected skin with water.

Remove the contaminated clothes with great care - in the presence of frost burns, the clothes may stick
to the skin. Wash with plenty of warm water the affected skin.

In the presence of symptoms such as irritation or blisters, obtain medical attention.

Contact with eyes

Vapours do not cause harmful effects. The spraying of refrigerant may cause frost burns.

Wash immediately with a proper solution or with tap water for at least 10 minutes, and then obtain
medical attention.

Ingestion

Very unlikely - should something happen, it will cause frost burns.

Do not induce vomiting. Only if the patient is conscious, wash out mouth with water and give some
250 ml of water to drink. Then, obtain medical attention.

Inhalation

R410A: remarkable concentrations in the air may have an anaesthetic effect, up to fainting.

The exposure to considerable amounts may cause irregular heartbeat, up to the sudden death of the
patient. Very high concentrations may result in the risk of asphyxia, due to the reduction in the oxygen
percentage in the atmosphere. Remove the patient to fresh air and keep warm and at rest.

If necessary, give oxygen. In case of breathing difficulties or arrest, proceed with artificial respiration.

In case of cardiac arrest, proceed with cardiac massage. Then, obtain medical attention.

Recommendations

Semiotics or support therapy is recommended. Cardiac sensitisation has been observed that, in
the presence of circulating catecholamines such as adrenalin, may cause cardiac arrhythmia and
accordingly, in case of exposure to high concentrations, cardiac arrest.

Prolonged exposure

R410A: a study on the effects of exposure to 50,000 ppm during the whole life of rats has identified the
development of benign testicle tumour.

This situation should therefore be negligible for personnel exposed to concentrations equal to or lower
than professional levels.

Professional levels R410A: Recommended threshold: 1000 ppm v/v - 8 hours TWA.

Stability R410A: Not specified.

Conditions to avoid Do not use in the presence of flames, burning surfaces and excess humidity.

Hazardous reactions

May react with sodium, potassium, barium and other alkaline metals.

Incompatible substances: magnesium and alloys with magnesium concentrations > 2%.

Hazardous decomposition
products

R410A: Halogen acids produced by thermal decomposition and hydrolysis.

2.8 Safety regulations

10

2 - Safety

REFRIGERANT DATA SAFETY DATA: R410A

General precautions

Do not inhale concentrated vapours. Their concentration in the atmosphere should not exceed the
minimum preset values and should be maintained below the professional threshold. Being more weighty
than the air, the vapour concentrates on the bottom, in narrow areas. Therefore, the exhaust system must
work at low level.

Respiratory system protection

If you are in doubt about the concentration in the atmosphere, it is recommended to wear a respirator
approved by an accident-prevention

Authority, of the independent or oxygen type.

Storage

Cylinders must be stored in a dry and fresh place, free from any fire hazard, far from direct sunlight or
other sources of heat, radiators etc.

Keep a temperature below 50 °C.

Protective clothing Wear overalls, protective gloves and goggles or a mask.

Accidental release measures

It is important to wear protective clothing and a respirator.

Stop the source of the leak, if you can do this without danger. Negligible leaks can be left evaporating
under the sun, providing that the room is well ventilated.

Considerable leaks: ventilate the room. Reduce the leak with sand, earth or other absorbing substances.

Make sure that the liquid does is not channelled into gutters, sewers or pits where the vapours are likely
to create a stuffy atmosphere.

Disposal

The best method is recovery and recycling. If this method is not practicable, dispose according to an
approved procedure, that shall ensure the absorption and neutralization of acids and toxic agents.

Fire fighting information R410A: Not flammable in the atmosphere.

Cylinders The cylinders, if exposed to fire, shall be cooled by water jets; otherwise, if heated, they may explode.

Protective fire fighting equipment In case of fire, wear an independent respirator and protective clothing.

2.8 Safety regulations (continued)

11

English

2 - Safety

LUBRICANT OIL DATA SAFETY DATA: POLYESTER OIL (POE)

Classification Not harmful.

Contact with skin

May cause slight irritation. Does not require first aid measures. It is recommended to follow usual
personal hygiene measures, including washing the exposed skin with soap and water several times a day.

It is also recommended to wash your overalls at least once a week.

Contact with eyes Wash thoroughly with a suitable solution or tap water.

Ingestion Seek medical advice immediately.

Inhalation Seek medical advice immediately.

Conditions to avoid

Strong oxidising substances, caustic or acid solutions, excess heat.

May corrode some types of paint or rubber.

Protection of the
respiratory system

Use in well ventilated rooms.

Protective clothing

Always wear protective goggles or a mask. Wearing protective gloves is not mandatory, but is
recommended in case of prolonged exposure to refrigerant oil.

Accidental release measures

It is important to wear protective clothing and, especially, goggles.

Stop the source of the leak. Reduce the leak with absorbing substances (sand, sawdust or any other
absorbing material available on the market).

Disposal

The refrigerant oil and its waste will be disposed of in an approved incinerator, in conformity with the
provisions and the local regulations applicable to oil waste.

Fire fighting information

In the presence of hot liquid or flames, use dry powder, carbon dioxide or foam. If the leak is not burning,
use a water jet to remove any vapours and to protect the personnel responsible for stopping the leak.

Cylinders The cylinders exposed to a fire will be cooled with water jets in case of fire.

Fire fighting protective equipment In case of fire, wear an independent respirator.

2.8 Safety regulations (continued)

12

3 - Transport, Handling and Storage

MIN. 5 cm

Space requirements request to handling

Holes Ø 30 mm

WARNING

While lifting and handling the unit, pay attention.
Otherwise, you might damage the finned block of
the coils arranged on both sides of the unit. The
sides of the unit shall be protected by cardboard
or plywood sheets.

Units are supplied fully assembled and tested (except for accessories
supplied loose in the units – absorbers, filter, etc.). They are ready to
be installed and started on the field.

R410A units are only charged with liquid refrigerant and with oil in the
quantity required for operation.

WARNING

The low pressure side of the refrigerating circuit
on R410A units sh all be charged b y means
of the service valve arranged on the thermal
expansion valve before the device is operated.

3.1 Inspection

The unit shall be immediately inspected upon receipt to find out any
damage since it has been delivered ex works and transported at the
customer’s risk. It is also necessary to make sure that all the parcels
specified on the delivery note have been delivered.

Any damage you may find out shall be immediately reported in writing
to the carrier. Even if the damage is only on the surface, please notify
our local representative too.

The manufacturer disclaims all responsibility for the shipment even if
it has provided for its organisation.

3.2 Handling

Units are designed to be lifted from above, by means of cables and
eyebolts. A spacer shall be arranged between the cables in order to
prevent them from damaging the unit (see the figure aside).

Before handling the devices, make sure the site you have chosen for
the installation can withstand its weight and suppor t its mechanical
impact.

Avoid touching sharp parts (such as the fins of batteries, for example)
while handling the unit.

WARNING

The unit shall never be placed on rollers.

Act as follows to lift and handle the unit:

!"

Insert and secure the eyebolts into the frame holes which have
been marked on purpose.

!"

Connect the cables to the eyebolts.

!"

Insert the spacer between the cables.

!"

Provide for hooking at the centre of gravity of the device.

!"

Cables shall have such a length that the angle they form with the
horizon when under tension is not less than 45°.

13

English

3 - Transport, Handling and Storage

WARNING

Until the unit i s r eady f or ope ration, do not
re m o v e t h e p l a s t i c e n v e l o p e a n d t h e c o i l
protections which are intended to prevent dirt,
dust and any foreign matter from penetrating
into the unit through the inlets of fans or from
damaging the external surfaces.

3.3 Anchoring

It is not essential to secure the unit to the foundations, unless in areas
where there is a serious risk of ear th-quake, or if the appliance is
installed on the top of a steel frame.

3.4 Storage

If the unit is to be stored before the installation for some time, take
at least the following precautions to prevent damage, corrosion and/
or deterioration:

!"

Make sure all openings, such as for example water connections,
are well plugged and sealed.

!"

Never store the units in a room where temperature is above
50 °C (R410A units) or where the units are directly exposed to
the sunlight.

!"

Minimum storage temperature is -25 °C.

!"

It is recommended to leave the finned coils covered to protect
them against any risk of corrosion, especially if building works
are still in progress.

!"

Store the units in areas where minimum activity is likely to take
place in order to avoid any risk of accidental damage.

!"

Never use steam to clean the unit.

!"

Remove all the keys required to have access to the control panel
and give them to the person in charge of the field.

It is also recommended to provide for visual inspections at regular
intervals.