System air Rooft@ir 40 Manual

Roof-mouted air conditioning unit
Unite d'air conditionne de toiture
Dachklimagerät
Uunità d’aria condizionata da tetto
Unidad da aire acondicionado de tejado
English
IOM RT 04-N-2ALL
Part number / Code / Teil Nummer / Codice / Código : 3990475
Supersedes / Annule et remplace / Annulliert und ersetzt /
Annulla e sostituisce / Anula y sustituye : IOM RT 04-N-1ALL
Français
40

108 kW
38

107 kW
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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
ROOFT@IR
40 ÷ 110

INSTALLATION INSTRUCTION
NOTICE D’INSTALLATION
INSTALLATIONSHANDBUCH
ISTRUZIONI INSTALLAZIONE
INSTRUCCIONES DE INSTALACIÓN

2
CONTENTS
GENERAL RECOMMENDATIONS ...............................................................................................................3
SAFETY DIRECTIONS................................................................................................................................................................ 3
WARNING ............................................................................................................................................................................... 3
EQUIPMENT SAFETY DATA ....................................................................................................................................................... 4
INSPECTION AND STORAGE.....................................................................................................................5
WARRANTY ...............................................................................................................................................5
CONTENTS OF PACKAGE..........................................................................................................................5
PRESENTATION .........................................................................................................................................5
TECHNICAL SPECIFICATIONS....................................................................................................................6
DIMENSIONS ............................................................................................................................................6
HANDLING ...............................................................................................................................................6
NET WEIGHT ........................................................................................................................................................................... 7
CENTRE OF GRAVITY IN RELATION TO UNIT DIMENSIONS....................................................................................................... 7
ELECTRICAL SPECIFICATIONS ...................................................................................................................8
UNIT WITHOUT HEATING........................................................................................................................................................ 8
UNIT WITH HEATING TYPE CH1 ............................................................................................................................................... 8
UNIT WITH HEATING TYPE CH2 ............................................................................................................................................... 8
INSTALLATION ..........................................................................................................................................8
PLACE OF INSTALLATION AND REQUIREMENTS........................................................................................................................ 8
CLEARANCE ............................................................................................................................................................................ 9
UNIT LOCATION ..................................................................................................................................................................... 9
ATTACHMENT TO THE GROUND ............................................................................................................................................ 9
CONDENSATE DRAIN PAIN ...................................................................................................................................................... 9
ROOF CURB.......................................................................................................................................................................... 10
ROOF CURB DIMENSIONS ...................................................................................................................................................................... 10
CONFIGURATION OF THE UNIT .............................................................................................................11
GENERALITES......................................................................................................................................................................... 11
SUPPLY AIR............................................................................................................................................................................. 11
AIR INTAKE ............................................................................................................................................................................ 11
ECONOMISER .........................................................................................................................................12
ELECTRIC HEAT .......................................................................................................................................12
WIRING DIAGRAM AND LEGEND............................................................................................................13
WIRING DIAGRAM................................................................................................................................................................. 13
LEGEND ................................................................................................................................................................................ 13
POWER SUPPLY........................................................................................................................................................................................ 13
WIRING DIAGRAM KEY DESCRIPTIONS .................................................................................................................................................... 13
POWER SUPPLY DIAGRAMS: ............................................................................................................................................................................................. 13
CONTROL AND REGULATION DIAGRAMS........................................................................................................................................................................ 14
RANGE AND SETTINGS OF THEMAL PROTECTION / NOMINAL INTENSITY OF THE CONTACTORS (CLASSE AC3)..................................... 15
COMPRESSORS CRANKCASE HEATER....................................................................................................................................................... 15
PRESSOSTATS SETTING ........................................................................................................................................................................... 15
ELECTRICAL CONNECTIONS...................................................................................................................16
COMMISSIONING...................................................................................................................................18
PRE-START CHECK LIST........................................................................................................................................................... 18
ELECTRICAL CHECK................................................................................................................................................................................. 18
VISUAL CHECK ........................................................................................................................................................................................ 18
DUCTING................................................................................................................................................................................................ 18
AIR BALANCING ...................................................................................................................................................................................... 19
CASE N°1: ....................................................................................................................................................................................................................... 19
CASE N°2: ....................................................................................................................................................................................................................... 19
OPERATING CHECK LIST........................................................................................................................................................ 20
GENERAL................................................................................................................................................................................................. 20
PHASE ROTATION PROTECTION ............................................................................................................................................................. 20
ELECTRICAL............................................................................................................................................................................................. 20
SET POINTS ..................................................................................................................................................................................................................... 20
OPERATING VOLTAGE: .................................................................................................................................................................................................... 20
CONTROL....................................................................................................................................................................................................................... 20
BLOWER & DRIVE..................................................................................................................................................................................... 20
COMPRESSOR AND REFRIGERATION SYSTEM .......................................................................................................................................... 20
FINAL CHECK .......................................................................................................................................................................................... 21
FINAL TASKS ...........................................................................................................................................21
IN CASE OF WARRANTY - MATERIAL RETURN PROCEDURE ....................................................................21
ORDERING SERVICE AND SPARE PARTS ORDER ......................................................................................21
MAINTENANCE.......................................................................................................................................21
REGULAR MAINTENANCE ...................................................................................................................................................... 21
GENERAL INSPECTION .......................................................................................................................................................... 21
OPENING OF ACCESS PANELS .............................................................................................................................................. 22
BLOWER DRIVE SYSTEM ......................................................................................................................................................... 22
COILS ................................................................................................................................................................................... 22
ELECTRICAL SECTION............................................................................................................................................................ 22
SERVICING CHECKLIST .......................................................................................................................................................... 23
TROUBLE SHOOTING..............................................................................................................................24

3
POWER SUPPLY MUST BE
SWITCHED OFF
BEFORE STARTING TO
WORK IN THE ELECTRIC
CONTROL BOX
GENERAL RECOMMENDATIONS
Please read the following safety precautions very carefully before installing the unit.
SAFETY DIRECTIONS
Follow the safety rules in forces when you are working on your appliance.
The installation, commissioning and maintenance of these units should be performed by qualified personnel having
a good knowledge of standards and local regulations, as well as experience of this type of equipment.
Given the requirements of pressurising the system and the high current draws involved, this roof-
mounted air conditioning should only be installed by qualified personnel.
The unit should be handled using lifting and handling equipment appropriate to the unit's size and weight.
Given the high refrigerant temperatures present at certain points in the cooling circuit, access to
the area protected by the panels is strictly reserved for qualified personnel only. These panels are
easily opened with a special tool. This tool should be kept by the installers or by the maintenance
company.
Any wiring produced on site must comply with the corresponding national electrical regulations.
Make sure that the power supply and its frequency are adapted to the required electric current of operation, taking
into account specific conditions of the location and the current required for any other appliance connected with
the same circuit.
The unit must be EARTHED to avoid any risks caused by insulation defects.
It is forbidden to start any work on the electrical components if water or high humidity is present on the installation
site.
WARNING
Cutoff power supply before starting to work on the appliance.
When making the hydraulic connections, ensure that no impurities are introduced into the pipe work.
The manufacturer declines any responsibility and the warrantly becomes void if these instructions
are not respected.
If you meet a problem, please call the Technical Department of your area.
If possible, assemble the compulsory or optional accessories before placing the appliance on its final location. (see
instructions provided with each accessory).
In order to become fully familiar with the appliance, we suggest to read also our Technical Instructions.
-The informations contained in these Instructions are subject to modification without advance notice.

4
EQUIPMENT SAFETY DATA
Safety Data R410A
Toxicity Low
In contact with skin Skin contact with the rapidly evaporating liquid may cause tissue chilblains. In case of skin contact
with the liquid, warm the frozen tissue with water and call a doctor. Remove contaminated clothing
and footwear. Wash the clothing prior to re-use.
In contact with eyes Vapours have no effect. Liquid splashes or sprays may cause freeze burns. In these cases rinse your
eyes with running water or with a solution for eye lavages for at least 10 minutes. Immediately
apply to a doctor.
Ingestion In this case, burns may result. Do not attempt to make the patient vomit. If the patient is conscious,
rinse the mouth with water. Call a doctor immediately.
Inhalation In case of inhalation, move the patient to an area with fresh air and provide oxygen if ne-
cessary. Perform artificial respiration if the patient has stopped breathing or lacks air. In
case of cardiac arrest, perform external cardiac massage. Call a doctor immediately.
Further Medical Advice Exposure to high concentrations can be dangerous for individuals with cardiac problems, as the
presence of catecholamines such as adrenalin in the bloodstream may lead to increased arrhyth-
mia and possible cardiac arrest.
Occupational exposure
limits
R410A: Recommended limits: 1,000 ppm v/v 8 hours TWA.
Stability Stable product
Conditions to avoid Increased pressure due to high temperatures may cause the container to explode. Keep out of
the sun and do not expose to a temperature >50°C.
Hazardous reactions Possibility of dangerous reactions in case of fire due to the presence of F and/or CI radicals
General precautions Avoid the inhalation of high concentrations of vapours. The concentration in the atmosphere
shall be kept at the minimum value and anyway below the occupational limits. Since vapours
are heavier than air and they tend to stagnate and to build up in closed areas, any opening for
ventilation shall be made at the lowest level.
Breathing protection In case of doubt about the actual concentration, wear breathing apparatus. It should be self-
contained and approved by the bodies for safety protection.
Storage Preservation Refrigerant containers shall be stored in a cool place, away from fire risk, direct sunlight and all
heat sources, such as radiators. The maximum temperature shall never exceed 50°C in the storage
place.
Protection clothes Wear boots, safety gloves and glasses or masks for facial protection.
Behaviour in case of
leaks or escapes
Never forget to wear protection clothes and brething apparatus. Isolate the source of the leakage,
provided that this operation may be performed in safety conditions. Any small quantity of
refrigerant which may have escaped in its liquid state may evaporate provided that the room is
well ventilated.In case of a large leakage, ventilate the room immediately. Stop the leakage with
sand, earth or any suitable absorbing material. Prevent the liquid refrigerant from flowing into
drains, sewers, foundations or absorbing wells since its vapours may create an asphyxiating
atmosphere.
Disposal The best procedure involves recovery and recycle. If this is not possible, the refrigerant shall be
given to a plant which is well equipped to destroy and neutralise any acid and toxic by-product
which may derive from its disposal.
Combustibility features R410A: Non-inflammable at ambient temperatures and atmospheric pressures.
Containers If they are exposed to the fire, they shall be constantly cooled down by water sprays.
Containers may explode if they are overheated.
Behaviour in case of fire In case of fire wear protection clothes and self-contained breathing apparatus.

5
INSPECTION AND STORAGE
At the time of receiving the equipment carefully cross check all the elements against the shipping documents in
order to ensure that all the crates and boxes have been received. Confirmation of the type of unit ordered can be
obtained by reading the maker’s plate (capacity, type and air blowing configuration).
Inspect the units for any visible or hidden damage.
In the event of shipping damage, write precise details of the damage on the shipper’s delivery note
and send immediately a registered letter to the shipper within 48 hours, clearly stating the damage
caused. Forward a copy of this letter to the manufacturer or their representative.
Never store or transport the unit upside down. Protect unit at the job side from domages made by others. When
unit is stored on the ground, avoid mud store unit leveled.
CONTENTS OF PACKAGE
1 Rooft@ir
1 Installation and maintenance manual
1 Control manual
WARRANTY
The appliances are delivered fully assembled, factory tested and ready to operate.
Any modification to the units without the manufacturer’s prior approval, shall automatically render the warranty
null and void.
The following conditions must be respected in order to maintain the validity of the warranty:
Commissioning shall be performed by specialised technicians from technical services approved by
¢
the manufacturer.
Maintenance shall be performed by technicians trained for this purpose.
¢
Only Original Equipment spare parts shall be used.¢
All the operations listed in the present manual shall be performed within the prescribed schedule.¢
THE WARRANTY SHALL BE NULL AND VOID IN THE EVENT
OF NON-COMPLIANCE WITH ANY OF THE ABOVE CONDITIONS.
PRESENTATION
The machine has been designed for an outdoor mouted application, ensuring perfectly weatherproof circulation
of the air within the compartments.
The RT is design very compact and it has an optimal foot print/weight ratio. Numerous accessoires and options
can be added to the basic version to adapt it perfectly to the client’s specific requirements. All units are charged
and tested at the factory and are supplied ready to start for quick and easy commissioning.
INSTRUCTIONS FOR FILLING IN THE "1st START-UP FORM"
(SEE APPENDIX)
It is the responsibility of the OWNER to make sure that the "1st Start-up Form" is fully filled in by the authorized
Service Centre and sent by registered mail - notified in advance by fax - to the After-Sales Service of the constructor
within 8 days of the initial start-up.
Failure to receive the form on the part of the constructor will render the guarantee null and void.

6
DIMENSIONS
HANDLING
SEE APPENDIX
TECHNICAL SPECIFICATIONS
You can adjust the available static pressure and flow by adjusting the variable motor pulley fitted to the blower
(SEE AIR BALANCING).
Forks guiderails are supplied as standard with the machine irrespective
of the air configuration. They enable the machine to be moved without
damaging its base or casing.
In the
case of a downward air configuration, remember to
remove the forks guiderails before lifting the unit to install
it on the roof curb.
900 A
80,50
170
MINIMUM FORK LENGTH: 2M
FORKS GUIDERAILS
Models 40 50 60 70 80 100 110
Compressor type Scroll
Tandem
Scroll
Tandem Scroll Scroll Scroll Scroll Scroll
Compressor quantity 2222222
Number of circuit 1122222
Refrigerant R410A
Charge of circuit kg SEE NAME PLATE
Number of blower 1111111
Type Centrifugal
Nominal indoor airflow m3/h 7 650 9 200 11 500 12 500 16 500 18 650 20 000
Number of outdoor fans 2244422
Type Helicoid
Nominal external total airflow m3/h 16 000 16 000 32 000 32 000 32 000 34 000 34 000
40-50 60-110
A 478 651
LIFTING WITH THE FORKS
GUIDERAILS OBLIGATORY

7
NET WEIGHT
THE LIFTING POINT MUST SUIT THE UNIT’S CENTRE OF GRAVITY
(SEE CHART BELOW).
CENTRE OF GRAVITY IN RELATION TO UNIT DIMENSIONS
X
Y
Z
B
C
Ø30
A
Models 40 50 60 70 80 100 110
Weight Kg 580 640 920 950 995 1085 1125
Models XGYGZG
mm mm mm
40 1380 870 2080
50
60
1110 1080 245070
80
100 1050 950 2505
110
Approximative length
The unit is also designed to be lifted by slings.
The rings mounted rigidly on the unit’s base frame enable lifting in complete safety.
A spreader must be used to avoid damaging the casing of the machine.
40-50 60-110
A 2420 3328
B32 36
C22 36

8
INSTALLATION
ELECTRICAL SPECIFICATIONS
IMPORTANT
A main fuse must mandatorily be provided on the power supply.
Fuses not supplied
¢
Cables not supplied¢
The unit is not designed to withstand weights or stresses from adjacent equipment, pipe work or
constructions. Any foreign weight or stress on the unit structure could lead to a malfunction or a
collapse with dangerous consequences for personnel and property. In such an event, the warranty
shall be null and avoid.
The unit supporting base shall be supplied as indicated in the manual. There could be a risk of
personal injury or damage to property in the event of the unit being incorrectly supported.
The building structure must be capable to carrying the weight of the unit during operation.
¢
The place of installation must not be subject to flooding.¢
The Rooft@ir should be installed on a flat, clean surface without any obstacles. The surface area¢
must be sufficient to spread the weight of the unit over the building structure.
Ensure that the recommended free clearances around the unit are maintained to avoid any risk of
¢
malfunctions.
The installer is responsible for providing the weaterproof seal between the building and the Rooft@ir.
¢
The installer must be fully versed in the practice of roof mounted equipments and must comply with
the recommendations and rules detailed in the Technical Directives.
In order to avoid risk of condensation and energy losses, all outdoor ducting and piping must be
¢
insulated.
UNIT WITHOUT HEATING
UNIT WITH HEATING TYPE CH1
PLACE OF INSTALLATION AND REQUIREMENTS
UNIT WITH HEATING TYPE CH2
Models 40 50 60 70 80 100 110
PE GE PE GE PE GE PE GE PE GE PE GE PE GE
Power supply 3+N /400 /50Hz
Maximum current A42 47 49 55 69 73 73 77 101 101 93 99 96 102
Total starting current A127 133 142 148 166 170 168 172 239 239 270 276 273 279
Fuse rating FFG aM A50 50 50 63 80 80 80 80 125 125 100 100 100 100
Models 40 50 60 70 80 100 110
PE GE PE GE PE GE PE GE PE GE PE GE PE GE
Power supply 3+N /400 /50Hz
Capacities KW 21 21 36 36 36 36 36
Maximum current A72 77 79 85 121 125 125 129 153 153 145 151 148 154
Total starting current A158 163 172 178 218 222 220 224 291 291 322 328 325 331
Fuse rating FFG aM A80 80 80 100 125 125 125 160 160 160 160 160 160 160
Models 40 50 60 70 80 100 110
PE GE PE GE PE GE PE GE PE GE PE GE PE GE
Power supply 3+N /400 /50Hz
Capacities KW 31.5 31.5 48 48 48 48 48
Maximum current A87 92 94 100 138 142 142 146 170 170 162 169 165 172
Total starting current A173 178 187 193 235 239 237 241 308 308 339 346 342 349
Fuse rating FFG aM A100 100 100 100 160 160 160 160 200 200 200 200 200 200

9
CLEARANCE
It must be high enough above the roof or ground to permit snow allowance and good drainage of1.
water with syphon
Keep duct connections outside the building to a minimum to reduce energy losses.2.
In addition to the service clearances noted above it is essential that provision is made for adequate3.
and safe service access to the appliance.
UNIT LOCATION
B
A
A
A
C
The drawing below illustrates the minimum service clearances to be
provided around the unit to guarantee access and proper operation.
Take particular care not to obstruct the outdoor coil in order to
ensure proper air circulation through the appliance.
In addition to the service clearances stated on the
dimensions sheet, it is imperative that safe and
appropriate access to the unit is provided for
repairs and servicing.
* Removable condensates tray.
ATTACHMENT TO THE GROUND
Models 40 50 60 70 80 100 110
A mm 1200 1200 1500 1500 1500 1500 1500
B* mm 1400 1400 1600 1600 1600 1600 1600
C mm 3000 3000 3000 3000 3000 3000 3000
SEE APPENDIX
CAUTION
For Heatpump models, where the outdoor temperature is likely to fall
below +1°C, provide a system to prevent the syphon from freezing (e.g.
heating cord).
CONDENSATE DRAIN PAIN
Ø 30
L = 30mm
The installer must imperatively supply a syphon.
Ø30 A
Syphon to be supplied by
others
Syphon
to
be
supp
o
th
e
r
s
H
Relationship with available
outdoor pressure
40-50 60-110
A 822 995

10
The frame of the curb receiving the unit must be reveled. The unit must slot perfectly into the roof curb.
POSITIONING OF THE ROOF CURB ON THE ROOF (CUTAWAY VIEW)
Roof curb1.
Rubber seal (supplied with the roof2.
curb)
Hard vibration-absorbent rubber3.
(option)
Concrete beam or slab4.
Vapour sealing film (supplied by5.
the roofer)
Roof insulation (supplied by the6.
roofer)
Sealant roofskin (supplied by the7.
roofer)
In order to break a thermal bridge between the roof curb and the unit, a seal (N°2) (50 X 5 mm) is
supplied with the roof curb. This seal must be glued by the installer on the roof curb to avoid metal
to metal contact and reduce eventual vibration transfer.
Once installed and fastened to the roof structure, the outside wall of the curb must be fully integrated in the roof
insulation.
To insulate the Roof curb before posing to ROOFT@IR it.
The minimum insulation thickness required is 25 mm and the surface must be protected by a bituminous coating
(or any other equivalent material) to ensure a perfect weatherproof seal.
ROOF@IR
1
2
3
4
5
6
7
ROOF CURB
The main purpose of the roof curb is to provide weatherproof passage,
supply and return air down to the building from the ROOFT@IR.
In this way, all connections (air, electricity) to the building are not free
above the roof. The curb provides a perfect roofing thermal insulation
and weight distribution between the ROOFT@IR and the building.
The roof curb should be used for a downward configuration at supply
and return air. The roof curb guarantees the perfect weathertight sealing
between the building structure and the appliance.
Two versions are available:
knocked-down and non-adjustable version
¢
This fixed roof curb, as an option, is supplied in kit form. Ask your sales representative.
An adjustable version is available assembled at the factory with a return air grille (see below).
¢
SEE APPENDIX
ROOF CURB DIMENSIONS

11
The unit is designed to be connected to a duct work. Should it not be the case, a discharge protection grille and
a device creating sufficient pressure drop must be supplied by the installer to avoid excess current draw generated
at the motor (see blower curves in the appendix)
4 discharges and 4 intakes air configurations are available.
For each configuration, note the dimensions of the discharge air duct to be provided before the unit arrives on site.
Make sure that it is fireproof and that it does produce toxic smoke in the event of a fire in the building. The interior
surfaces must be smooth and cleanable to avoid contamination of the circulated air.
CONFIGURATION OF THE UNIT
GENERALITES
NEVER DRILL ANY HOLES IN THE AIR TREATMENT ZONE OF THE UNIT. THE
MANUFACTURER’S WARRANTY WILL BE CANCELLED IN THE EVENT OF ANY
WATER LEAKS RESULTING FROM THE DRILLING OF HOLES IN THE CASING.
Downward discharge: S1
¢
Sideway discharge: S2¢
Front discharge: S3¢
Top discharge: S4¢
SUPPLY AIR
The "Downward discharge" and "Return air from below" versions requires the presence of a roof curb. For all cases,
the installation must be analysed to avoid any risk of damage to the support on which the unit will be mounted,
given its weight, .
DIMENSIONS
SEE APPENDIX
Return air from below: R1¢
Return air from the side: R2¢
Return air from the rear: R3¢
Return air from the top: R4¢
AIR INTAKE

12
ECONOMISER
The economiser is a set of two dampers driven by one actuator. The quantity
of outdoor air introduced into the building varies according to the room set
point and provides energy savings in both modes. Economiser is used to
modulate the return and outdoor air volumes. It also provides an antifreeze
protection during OFF period by closing the outdoor air dampers
Filter1.
Indoor coil2.
Heating coil3.
Main blower4.
Condenser fan5.
Outdoor coil6.
Compressor with reversal cycle valve7.
Return air dampers8.
Outdoor air dampers9.
ELECTRIC HEAT
The electric coil is located directly at the blower outlet. It is only available for the downward discharge version (S1)
or front discharge (S3). Air deflector are supplied to guide the stream around the heating elements.
Safety devices (thermostats and pressostats) protect the machine from possible risks of overheating due to insufficient
flow around the shielded elements.
Supply airA.
Return airB.
Outdoor airC.
Outdoor air to outdoor coilD.
THE ECONOMISER OPTION IS NOT COMPATIBLE WITH THE RETURN AIR FROM
THE TOP (R4) AND RETURN AIR FROM THE REAR (R3) CONFIGURATIONS.

13
LEGEND
N766
WIRING DIAGRAM
SEE APPENDIX
SE3377 models 40/50 Control 230V 50Hz +/- 10%
SE33781 models 40/50 Power Tri 400V+N 50Hz +/- 10%
SE33782 models 40/50 Power Tri 400V+N 50Hz +/- 10%
SE3380 models 60/70/80 Control 230V 50Hz +/- 10%
SE3563 models 100/110 Control 230V 50Hz +/- 10%
SE33791 models 60/70/80/100/110 Power Tri 400V+N 50Hz +/- 10%
SE33792 models 60/70/80 Power Tri 400V+N 50Hz +/- 10%
SE3559 models 100/110 Power Tri 400V+N 50Hz +/- 10%
SE33793 models 40/50/60/70/80/100/110 Power Tri 400V+N 50Hz +/- 10%
POWER SUPPLY
This supply is protected upstream by an FFG general supply fuse holder, to be provided by the installer, in accordance
with "ELECTRICAL SPECIFICATIONS". The fuse holder shall be mounted close to the unit.
The electrical installation and the wiring of this unit shall comply with local electrical installation standards.
Thee phase 400 V~ + Neutral + Ground:
¢
On terminals L1 ; L2 ; L3 ; N on the QO mains supply circuit switch.
On the ground screw for the earth cable.
WIRING DIAGRAM KEY DESCRIPTIONS
POWER SUPPLY DIAGRAMS:
FFG : Protective fuses (not supplied)
XO : Phase distributor
QO : Mains supply circuit switch
KA1 : Three-phase network control relay (phase sequence and cut-out)
Q1/2 : C1/2 compressors magneto-thermal circuit breaker
KM1/2 : C1/2 compressors power circuit contactor
C1/2 : Compressors
R1/2 : C1/2 compressors crankcase heater
FT1 : Control circuit magneto-thermal circuit breaker (+ outdoor fans RT40 - RT50)
F2 : Fuse-terminal + fuse (1A)
T1 : 230V24V AC transformer
Q3 : Blower fan magneto-thermal circuit breaker
FT3/4 : Outdoor fans magneto-thermal circuit breaker
Q4 : Extractor fan magneto-thermal circuit breaker
Q7/8 : Outdoor fans magneto-thermal circuit breaker
KM3/4/7/8 : Fan power contactors
WIRING DIAGRAM AND LEGEND

14
AS : Soft start motor – three phase model (option)
M3 : Indoor fan motor
M4 : Extractor fan motor
CV : Extractor fan motor condenser
MV1/2/3/4 : Outdoor fan motor
CV1/2/3/4 : Outdoor fan motor condenser
Q5/6 : Heating elements magnetic circuit breakers (option)
K5/6 : Heating elements power contactors (option)
CH.1 : Small capacity heating option
CH.2 : Large capacity hearting option
SP7/8 : Condensing pressure sensor (All Seasons option)
FSP7/8 : Variable speed regulator (All Seasons option)
KA2/3 : Outdoor fans auxiliary contactors (All Seasons / Heat pump mode option)
HPD7/8 : Defrosting pressostat
CONTROL AND REGULATION DIAGRAMS
pCO1 : CAREL regulation
Q1/2 : C1/2 compressors additional magneto-thermal circuit breaker
Q3 : Blower fan additional magneto-thermal circuit breaker
Q5/6 : Heating elements additional magnetic circuit breaker (option)
Q7/8 : Outdoor fans additional magneto-thermal circuit breaker
OF1/2/3/4 : MO1/2/3/4 motors internal protection
FM : Heating safety thermostat (83°C) (option)
KA1 : Three-phase network control relay (phase sequence and cut-out) contact
HP1/2 : Circuits 1 and 2 automatic reset high-pressure pressostats
LP1/2 : Circuits 1 and 2 automatic reset low-pressure pressostats
OCT1/2 : Circuits 1 and 2 condenser temperature sensor
RAT : Intake air temperature sensor
OAT : Outdoor air temperature sensor (option)
SAT : Blown air temperature sensor (option)
RAH : Intake air hygrometry sensor (option)
IAQ : Intake air quality sensor (option)
OAH : Outdoor air hygrometry sensor (option)
SD : Smoke detector (option)
ECM : Economiser dampers motor (option)
HWV : Hot water coil modulating valve (option)
HWC : Anti-freezing, hot water battery warning
DFA : Clogged filter warning (ΔP>250Pa)
AF : Air pressostat (ΔP<50Pa)
ON/OFF : ON/OFF switch (not supplied)

15
PRESSOSTATS SETTING
Refrigerant circuit
Factory low pressure adjustment 2bars (29PSI)
Factory high pressure adjustment 42bars (609.16PSI)
Clogged filter ΔP warning (upstream/downstream filters) > 250 Pa
Airflow detector ΔP warning (upstream/downstream blower)< 50 Pa
RANGE AND SETTINGS OF THEMAL PROTECTION / NOMINAL INTENSITY OF THE
CONTACTORS (CLASSE AC3)
COMPRESSORS CRANKCASE HEATER
Models 40 50 60 70 80 100 110
Power W 70 90 90 90 75 90+75 75
Model 40 50 60 70 80 100 110
PE GE PE GE PE GE PE GE PE GE PE GE PE GE
Q1 Range 13-18A 17-23A 17-23A 24-32A 25-40A 25-40A 25-40A
Adjustment 15A 18A 21A 23A 35A 35A 38A
Q2 Range 13-18A 17-23A 17-23A 24-32A 25-40A 25-40A 25-40A
Adjustment 15A 18A 21A 23A 35A 38A 38A
Q3 Range 4-6.3A 9-14A 4-6.3A 9-14A 9-14A 13-18A 9-14A 13-18A 13-18A 13-18A 13-18A 13-18A 13-18A 13-18A
Adjustment 4A 10.9A 4.8A 11A 11A 14.8A 11A 14.8A 14.8A 15.6A 15.5A 16.3A 15.5A 16.3A
Q4 6A 6A 6A 6A 6A 6A 6A
Q7/8 Range /////2.5-4A 2.5-4A
Adjustment /////2.5A 2.5A
FT1 10A 10A 2A 2A 2A 2A 2A
FT3 / / 10A 10A 10A / /
FT4 / / 10A 10A 10A / /
Contactor AC3
KM1 18A 18A 25A 25A 40A 40A 40A
KM2 18A 18A 25A 25A 40A 40A 40A
KM3 9A 12A 9A 12A 12A 18A 12A 18A 18A 18A 18A
KM4 9A 9A 9A 9A 9A 9A 9A
KM7 9A 9A 9A 9A 9A 6A 6A
KM8 / / 9A 9A 9A 6A 6A
SWS : Winter/Summer switch (not supplied)
KM1/2 : C1/2 compressors power contactor
KM3/4/7/8 : Fan power contactors
K5/6 : Heating elements power contactors (option)
EV1/2 : Circuits 1 and 2 cycle inversion valve (option)
KA2/3 : Relay contactors of the outdoor fan (option "all seasons"/ heat pump mode)

16
ELECTRICAL CONNECTIONS
WARNING
BEFORE CARRYING OUT ANY WORK ON THE
EQUIPMENT, MAKE SURE THAT THE ELECTRICAL
POWER SUPPLY IS DISCONNECTED AND THAT THERE
IS NO POSSIBILITY OF THE UNIT BEING STARTED
INADVERTENTLY.
NON-COMPLIANCE WITH THE ABOVE INSTRUCTIONS
CAN LEAD TO INJURY OR DEATH BY ELECTROCUTION.
The electrical installation must be performed by a fully qualified electrician, and in accordance with local electrical
standards and the wiring diagram corresponding to the unit model.
Any modification performed without our prior authorisation may result in the unit’s warranty being declared null
and void.
The power supply cable section must be sufficient to provide the appropriate amperage to the unit’s main power
terminals, at start-up and under full load operating conditions.
The power supply cable shall be selected in accordance with the following criteria:
Power supply cable length.1.
Maximum unit starting current draw – the cables shall supply the appropriate amperage to the unit2.
terminals for starting.
Power supply cables’ installation mode. (do not leave cable weight hang on connecting lugs)3.
Cables’ capacity to transport the total system current draw.4.
Starting current and total current draw are indicated on the unit’s wiring diagram.
Short circuit protection shall be provided by others. This protection shall comprise fuses or circuit breakers with
high breaking capacity, mounted on the distribution board. The distribution board must support the intensity of the
whole of the machines installed.
If the remote controls include a ambient temperature sensor and/or a room stat with temperature setting, these
shall be connected with shielded cable and shall not installed in the same conduit as the power supply cable to
avoid induced voltages and create faults in the unit’s operation.
VERY IMPORTANT:
3N~400V-50HZ
The outdoor unit is equipped as standard with a phase sequence and cut-out controller located in the electrical
box.
THIS PRODUCT IS EQUIPPED WITH A PHASE SEQUENCE CONTROLLER. THE LED’s INDICATE THE
FOLLOWING CONDITIONS:
Green LED = 1
Yellow LED =1
Low voltage supply
The compressor rotation
direction is correct
Green LED = 1
Yellow LED =0
Phase inversion or phase absent
(L1)
The compressor and the fans
do not start.
Green LED = 0
Yellow LED =0
Phase absent (L2 or L3)
the compressor and the fans do
not start.

17
3N~400V
The electric connection of range RT is done in a single point on the level of the principal circuit breaker (copper
wire cable recommended).
Use a key for hexagonal socket screws of 4mm, to make the connections.
Use a pozidrive M3.5 screwdriver, Form Z, to make the connections.
These units are equipped with a local switch used as general terminal board.
The switch can be padlocked.
A circuit breaker or fuse holder ( not supplied ) must be installed on the main power
supply of the unit in accordance with the circuit diagram; for the raitings, refer to the
electrical specifications.
RT40 - 50 RT60 - 70 - 80 RT100 - 110

18
COMMISSIONING
PRE-START CHECK LIST
ELECTRICAL CHECK
Electrical installation has been carried out according to unit wiring diagram and the Supply Authority1.
Regulations.
size fuses or circuit breaker has been installed at the main switchboard.2.
Supply voltages as specified on unit wiring diagram.3.
All cables are properly identified and tight connected at the unit.4.
the cables and wires are clear of or protected from pipework and sharp edges.5.
VISUAL CHECK
Clearances around unit including outdoor air entry and discharge openings and service accesses.1.
Unit mounted as specified.2.
For loose or missing bolts or screws.3.
For refrigerant leaks in connections and components.4.
DUCTING
Connections flexible type, secure and detachable for service access.1.
blower drive2.
Pulley adjustment correct for expected air quantity and static pressure.
Belt tension correct.
Check that the Biloc Sheaves on both the blower shaft and the motor schaft are correctly fitted to the3.
bush and rotate without wobbling.
Ensure that the motor is securely bolted to the mounting plate parallel to the blower shaft.4.
Using a string line or straight edge ensure that both pulley grooves are correctly aligned.5.
Improper alignment of the pulleys and belt may cause vibration in the blower drive and result in6.
premature wear and noise.
10 mm maxi.
5 kg
90
For a quick check, make sure that the
small rope touch each end of the pulleys
as shown on drawing opposite.
Belt alignment Belt tensioning