System air SYSAER R32 Series Manual

R32
Roof-mounted air conditioning unit
Installation and maintenance manual
19200â25500m3/h
106 â142 kW
106 â139 kW
SR R32 105 / SR R32 120 / SR R32 140
SYSAER R32

INSTALLATION INSTRUCTION
NOTICE D’INSTALLATION
INSTALLATIONSHANDBUCH
ISTRUZIONI INSTALLAZIONE
INSTRUCCIONES DE INSTALACIÓN
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English
2SYSAER R32
CONTENTS
1. GENERAL RECOMMENDATIONS........................................................................................................................................................ 3
1.1. SAFETY DIRECTIONS .......................................................................................................................................................................................................................3
1.2. INFORMATION ON THE REFRIGERANT USED ..............................................................................................................................................................................3
1.3. INSTALLATION INFORMATION ......................................................................................................................................................................................................4
1.3.1. GENERAL GUIDELINES FOR SAFE USE OF R32 FOR EQUIPMENT LOCATED IN THE OPEN AIR .......................................................................................................................4
1.3.2. GENERAL GUIDELINES FOR SAFE USE OF R32 FOR EQUIPMENT LOCATED IN A MACHINERY ROOM...........................................................................................................4
1.4. GAS DETECTOR ...............................................................................................................................................................................................................................6
1.5. WARNING.........................................................................................................................................................................................................................................6
1.6. EQUIPMENT SAFETY DATA.............................................................................................................................................................................................................7
2. INSPECTION AND STORAGE.............................................................................................................................................................. 9
3. WARRANTY...................................................................................................................................................................................... 9
4. PRESENTATION................................................................................................................................................................................. 9
5. CONTENTS OF PACKAGE ................................................................................................................................................................. 10
5.1. OPTIONALS ACCESSORIES............................................................................................................................................................................................................10
6. DIMENSIONS .................................................................................................................................................................................. 10
7. HANDLING...................................................................................................................................................................................... 10
7.1. NET WEIGHT...................................................................................................................................................................................................................................10
7.2. GRAVITY CENTER POSITION.........................................................................................................................................................................................................10
7.3. MANUTENTION GENERALITES ....................................................................................................................................................................................................11
7.3.1. HANDLING WITH A FORKLIFT ................................................................................................................................................................................................................................ 11
7.3.2. HANDLING BY SLINGING........................................................................................................................................................................................................................................ 12
8. TECHNICAL SPECIFICATIONS ........................................................................................................................................................... 13
8.1. PHYSICAL CHARACTERISTICS ......................................................................................................................................................................................................13
8.2. REFRIGERATION SPECIFICATIONS ...............................................................................................................................................................................................14
8.2.1. REFRIGERANT CIRCUIT DIAGRAM ......................................................................................................................................................................................................................... 14
8.2.2. REFRIGERANT CHARGE........................................................................................................................................................................................................................................... 14
8.2.3. FLUOROCARBON GAS REGULATIONS................................................................................................................................................................................................................... 14
8.3. ELECTRIC SPECIFICATIONS............................................................................................................................................................................................................15
8.4. OPERATING LIMITS........................................................................................................................................................................................................................16
8.4.1. COOLING MODE....................................................................................................................................................................................................................................................... 16
8.4.2. HEATING MODE ....................................................................................................................................................................................................................................................... 16
9. CONFIGURATION OF THE UNIT........................................................................................................................................................ 17
9.1. GENERALITIES................................................................................................................................................................................................................................17
9.2. SUPPLY AIR.....................................................................................................................................................................................................................................17
9.3. AIR INTAKE .....................................................................................................................................................................................................................................17
9.4. DUCT OUTLET DIMENSIONS.........................................................................................................................................................................................................17
9.5. ECONOMISER .................................................................................................................................................................................................................................18
9.5.1. ECONOMISER - 2 DAMPERS.................................................................................................................................................................................................................................. 18
9.5.2. ECONOMISER - 3 DAMPERS.................................................................................................................................................................................................................................. 19
10. OPTIONS....................................................................................................................................................................................... 20
10.1. CO2 SENSOR................................................................................................................................................................................................................................20
11. INSTALLATION.............................................................................................................................................................................. 21
11.1. SITING THE INSTALLATION.........................................................................................................................................................................................................21
11.1.1. PREVAILING WIND ................................................................................................................................................................................................................................................ 21
11.1.2. CONDENSATE WATER MANAGEMENT IN HEATING MODE ............................................................................................................................................................................. 22
11.1.3. HOW TO REDUCE NOISE POLLUTION.................................................................................................................................................................................................................. 22
11.2. CLEARANCE .................................................................................................................................................................................................................................22
11.3. ATTACHMENT TO THE GROUND................................................................................................................................................................................................23
11.4. ROOF CURB..................................................................................................................................................................................................................................23
11.4.1. DIMENSIONS.......................................................................................................................................................................................................................................................... 23
12. HYDRAULIC LINKS........................................................................................................................................................................ 24
12.1. CONDENSATE DRAIN LINE.........................................................................................................................................................................................................24
12.2. FROST PROTECTION ...................................................................................................................................................................................................................25
12.2.1. WATER LOOP GLYCOLING .................................................................................................................................................................................................................................... 25
12.3. WATER QUALITY..........................................................................................................................................................................................................................25
13. WIRING DIAGRAM AND LEGEND.................................................................................................................................................. 26
13.1. WIRING DIAGRAM ......................................................................................................................................................................................................................26
13.2. LEGEND ........................................................................................................................................................................................................................................26
13.2.1. POWER SUPPLY..................................................................................................................................................................................................................................................... 27
13.2.2. WIRING DIAGRAM KEY DESCRIPTIONS.............................................................................................................................................................................................................. 27
13.2.3. RANGE AND SETTINGS OF THEMAL PROTECTION / NOMINAL INTENSITY OF THE CONTACTORS (CLASSE AC3).................................................................................. 27
14. ELECTRICAL CONNECTIONS........................................................................................................................................................... 28
14.1. GAS DETECTION MODULE..........................................................................................................................................................................................................30
14.1.1. INSPECTION ........................................................................................................................................................................................................................................................... 30
15. COMMISSIONING.......................................................................................................................................................................... 31
15.1. PRE-START CHECK LIST ..............................................................................................................................................................................................................31
15.1.1. VISUAL CHECK ....................................................................................................................................................................................................................................................... 31
15.1.2. ELECTRICAL CHECK ............................................................................................................................................................................................................................................... 31
15.1.3. FANS AND DUCTS................................................................................................................................................................................................................................................. 31
15.2. OPERATING CHECK LIST .............................................................................................................................................................................................................32
15.2.1. GENERAL................................................................................................................................................................................................................................................................ 32
15.2.2. PHASE ROTATION PROTECTION .......................................................................................................................................................................................................................... 32
15.2.3. ELECTRICAL............................................................................................................................................................................................................................................................ 32
15.2.4. COMPRESSORS AND REFRIGERATION SYSTEM................................................................................................................................................................................................ 32
15.2.5. FINAL CHECK.......................................................................................................................................................................................................................................................... 33
16. FINAL TASKS ................................................................................................................................................................................ 33
17. IN CASE OF WARRANTY - MATERIAL RETURN PROCEDURE ......................................................................................................... 33
18. ORDERING SERVICE AND SPARE PARTS ORDER ........................................................................................................................... 33
19. MAINTENANCE............................................................................................................................................................................. 34
19.1. WEEKLY CHECK............................................................................................................................................................................................................................34
19.2. PERIODIC TABLE OF SERVICE AND MAINTENANCE ...............................................................................................................................................................35
19.3. MAINTENANCE PROCEDURES...................................................................................................................................................................................................38
19.3.1. REFRIGERANT CIRCUIT.......................................................................................................................................................................................................................................... 38
20. TROUBLE SHOOTING..................................................................................................................................................................... 40

English
3SYSAER R32
POWER SUPPLY MUST BE
SWITCHED OFF
BEFORE STARTING WORK IN THE
ELECTRIC CONTROL BOX
1. GENERAL RECOMMENDATIONS
The purpose of this Manual is to provide users with instructions for installing, commissioning, using and
maintaining the units.
It does not contain the complete description of all the maintenance operations guaranteeing the unit’s long
life and reliability. Only the services of a qualied technician can guarantee the unit’s safe operation over a
long service life.
Please read the following safety precautions very carefully before installing the unit.
All refrigerant piping work, electrical work, air-tightness test, and brazing work must be performed by
qualied personnel.
1.1. SAFETY DIRECTIONS
This product contains R32 refrigerant that has a minimal environmental impact, thanks to its low value of
Global Warming Potential (GWP).
According to ISO 817, R32 refrigerant is classied as A2L, which is slightly ammable, since the ame
propagation rate is low, and non-toxic.
R32 refrigerant can burn slowly when all the following conditions are present:
² The concentration is between the lower and upper ammability limit (LFL & UFL).
² T Wind velocity < propagation of ame velocity
²Energy of the ignition source > Minimum ignition energy
1.2. INFORMATION ON THE REFRIGERANT USED
Follow the safety rules in forces when you are working on your appliance.
The installation, commissioning, use and maintenance of these units should be performed by qualied
personnel having a knowledge of standards and local regulations, as well as experience of this type of
equipment.
This appliance has not been designed for use by persons (including children) with reduced physical, sensorial
or mental faculties or by persons without any experience or knowledge of heating systems, unless they act
under the safety and supervision of a responsible person or have received prior training concerning the use
of the appliance.
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 qualied 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 specic conditions of the location and the current required for any other appliance
connected to 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.

English
4SYSAER R32
Safety class (ISO 817) A2L
PED Group 1
Practical limit (kg/m3) 0.061
ATEL/ ODL (kg/m3) 0.30
LFL (kg/m3) @ 60°C 0.307
Vapour density @25°C, 101.3 kPa (kg/m3) 2.13
Molecular mass 52.0
Boiling point (°C) -52
GWP (100 yr ITH) 675
GWP (ARS 100 yr ITH) 677
Autoignition temperature (°C) 648
1.3. INSTALLATION INFORMATION
This rooftop has to be installed in open air or machinery room (location classication III).
To ensure location classication III a mechanical vent on the secondary circuit(s) has to be installed.
Local building codes and safety standards shall be followed; in absence of local codes and standards refer
to EN 378-3:2016 as a guide.
1.3.1. GENERAL GUIDELINES FOR SAFE USE OF R32 FOR EQUIPMENT LOCATED IN THE OPEN AIR
Refrigerating systems sited in the open air shall be positioned to avoid leaked refrigerant owing into a
building or otherwise endangering people and property.
The refrigerant shall not be able to ow into any ventilation fresh air opening, doorway, trap door or similar
opening in the event of a leak. Where a shelter is provided for refrigerating equipment sited in the open air
it shall have natural or forced ventilation.
For refrigeration systems installed outside in a location where a release of refrigerant can stagnate e.g.
below ground, then the installation shall comply with the requirements for gas detection and ventilation of
machinery rooms.
1.3.2. GENERAL GUIDELINES FOR SAFE USE OF R32 FOR EQUIPMENT LOCATED IN A MACHINERY
ROOM
When a machinery room is chosen for the location of the refrigerating equipment it shall be located in
accordance with local and national regulations. The following requirements (according to EN 378-3:2016)
can be used for the assessment.
²Machinery rooms should not be used as occupied spaces. The building owner or user shall ensure
that access is permitted only by qualied and trained personnel doing the necessary maintenance to
the machinery room or general plant.
²Machinery rooms shall not be used for storage with the exception of tools, spare parts and
compressor oil for the installed equipment. Any refrigerants, or ammable or toxic materials shall be
stored as required by national regulations.
² Open (naked) ames shall not be permitted in machinery rooms, except for welding, brazing
or similar activity and then only provided the refrigerant concentration is monitored and adequate
ventilation is ensured. Such open ames shall not be left unattended.
²A remote switching (emergency type) for stopping the refrigerating system shall be provided
outside the room (near the door). A similar acting switch shall be located at a suitable location inside
the room.
²All piping and ducting passing through oors, ceiling and walls of machinery room shall be sealed.
²Hot surfaces shall not exceed a temperature of 80 % of the auto-ignition temperature (in °C) or
100 K less than the auto-ignition temperature of the refrigerant, whichever is lower.
Refrigerant: R32
²Self-Ignition temperature: 648°C
²Maximum surface temperature: 548°C

English
5SYSAER R32
Machinery rooms shall have doors opening outward and sufcient in number to ensure persons can escape
in an emergency.
²The doors shall be tight tting and self-closing. They shall be so designed that they can be
opened from inside (anti-panic system). The doors shall have at least a one-hour re resistance
construction, using materials and construction tested in accordance with EN 1634. There shall be
no openings that permit unintended passage of escaping refrigerant, vapours, odours and all other
gases to any occupied space.
²Provision shall be made to facilitate immediate exit from the machinery room in the event of
an emergency. At least one emergency exit shall open directly to the open air or it shall lead to an
emergency exit passageway.
²Service ducts shall conform to the requirements of EN 1366-1 and EN 1366-2, and they shall
be sealed to minimize escaped refrigerant leakage into the service duct, and shall have at least the
same re resistance as walls and doors.
²Service ducts, including walkways and crawl spaces, containing piping for refrigerants shall be
vented to a safe place to prevent a dangerous accumulation of refrigerant in the event of a leak.
Service ducts shall not be used for ventilation or conditioned air.
²Sheet metal for normal and emergency ventilation ducts shall be in accordance with EN 1507
and supported as required by EN 12236. After erection all duct seams and joints shall be sealed to
minimize gas leakage from the duct. The ventilation duct shall have at least the same re resistance
as the doors and walls of the machinery room.
²Ventilation: The ventilation of machinery rooms shall be sufcient both for normal operating
conditions and emergencies. Air from machinery rooms shall be vented outdoors using mechanical
ventilation in case of a release of refrigerant due to leaks of components. This ventilation system
shall be independent of any other ventilation system on the site.
Provision shall be made for a sufcient supply of outside replacement air and a good distribution of
that air over the machinery room avoiding dead zones.
Openings for outside air shall be positioned to avoid re-circulation into the room.
Ventilation for normal operating conditions or when machinery room is occupied
Ventilation shall be in accordance with national regulations with a minimum of 4 air changes
per hour when the machinery room is occupied. In the event that the necessary ventilation
rate cannot be achieved an audible and/or visual alarm shall be initiated and, where relevant,
electrical supplies shall be terminated.
Emergency mechanical ventilation
If gas detection is required in the machinery room, the emergency mechanical ventilation
system shall be activated by a detector(s), located in the machinery room.
Emergency mechanical ventilation shall be provided with two independent emergency
controls one located outside the machinery room, and the other inside.
 Required airow for emergency mechanical ventilation
Airow of the mechanical ventilation shall be at least the quantity obtained by Formula (1):
Where
V
= 0,014xm2/3
- V
 is the air ow rate in m3/s;
- mis the mass of refrigerant charge, in kg, in the refrigerating system with the largest
charge, any part of which is located in the machinery room;
- 0,014 is a conversion factor with units of m3/s kg2/3.
An emergency ventilation system with 15 air changes per hour is sufcient
Mechanical ventilation openings
Mechanical ventilation openings shall be made in the position and of sizes to permit
sufcient airow considering the characteristics of the refrigerant, the choice of intake or
exhaust and the performance of the ventilator. The intake and exhaust openings shall be
arranged to evacuate the refrigerant under all conditions of leaking refrigerant

English
6SYSAER R32
²Refrigerant detectors for R32
A refrigerant detector for a group A2L refrigerant shall activate the alarm signal at a level not
exceeding 25 % of the LFL of the refrigerant. The detector shall continue to activate at higher
concentrations. The detector shall be set lower for the toxicity, if applicable. It shall automatically
activate an alarm, start mechanical ventilation and stop the system when it triggers.
Refrigerant LFL Threshold level
R32 0,307 kg/m30,7675 kg/m3 => 36000 ppm
The installation of the detector shall allow access for checking, repair or replacement by an
authorized person.
The detector shall be installed so its function can be veried easily.
The detector shall be protected to prevent tampering or unauthorised resetting of the pre-set value
The R32 detector is composed of a gas sensor on ventilation side and a control board.
The sensitive layer of the sensors reacts chemically in the presence of R32, changing its conductivity. The
different oxidation processes modify the conductivity and therefore the measurement, which is why regular
calibrations are necessary. Regular maintenance must be carried out in accordance with the instructions. Do
not generate electrostatic discharges.
The following are currently known to poison the sensor and change its sensitivity:
²Polymerizing substances such as ethylene oxide, acrylonitrile, butadiene, styrene, silicone.
²Catalytic poisons, such as Sulphur and phosphorus compounds, silicon compounds, metallic vapors.
²Organic solvents.
1.4. GAS DETECTOR
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 warranty becomes void if these instructions are
not respected.
If you meet a problem, please call the Technical Department of your geographical area.
If possible, assemble the compulsory or optional accessories before placing the appliance on its nal 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 information contained in these Instructions are subject to modication without advance notice.
1.5. WARNING

English
7SYSAER R32
1.6. EQUIPMENT SAFETY DATA
Safety Data Diuoromethane R32
Chemical Formula CH2F2
Toxicity Low
Classification of substance Flammable gas – Category 1 – Danger (H220) Gases under pressure – Liquefied gas – Warning (H280)
Critical temperature (°C) -78,4 °C @ 58,10 Bar
Upper/lower flammability 28,40 Vol. % / 13,10 Vol. %
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 contact 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 necessary. 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 arrhythmia and possible
cardiac arrest.
Occupational exposure limits R32: 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.
Precautions for safe handling:
general
Only experienced and properly instructed persons should handle gases under pressure.
Use only properly specified equipment which is suitable for this product, its supply pressure and
temperature.
Purge system with dry inert gas (e.g. helium or nitrogen) before gas is introduced and when system is
placed out of service.
Purge air from system before introducing gas.
Containers, which contain or have contained flammable or explosive substances, must not be inerted with
liquid carbon dioxide.
Assess the risk of a potentially explosive atmosphere and the need for suitable equipment i.e. explosion-
proof.
Take precautionary measures against static discharges.
Keep away from ignition sources (including static discharges).
Provide electrical earthing of equipment and electrical equipment usable in explosive atmospheres. Use
non-sparking tools.
Refer to supplier's handling instructions.
The substance must be handled in accordance with good industrial hygiene and safety procedures.
Ensure the complete system has been (or is regularly) checked for leaks before use.

English
8SYSAER R32
Safety Data Diuoromethane R32
Precautions for safe handling:
container
Protect containers from physical damage; do not drag, roll, slide or drop.
Do not remove or deface labels provided by the supplier for the identification of the container contents.
When moving containers, even for short distances, use appropriate equipment eg. trolley, hand truck, fork
truck etc.
Secure cylinders in an upright position at all times, close all valves when not in use.
Provide adequate ventilation. Suck back of water into the container must be prevented.
Do not allow backfeed into the container.
Avoid suckback of water, acid and alkalis. Keep container below 50°C in a well ventilated place.
Observe all regulations and local requirements regarding storage of containers.
When using do not eat, drink or smoke.
Store in accordance with.
Never use direct flame or electrical heating devices to raise the pressure of a container.
Precautions for safe handling:
valves
Leave valve protection caps in place until the container has been secured against either a wall or bench or
placed in a container stand and is ready for use.
Damaged valves should be reported immediately to the supplier
Close container valve after each use and when empty, even if still connected to equipment.
Never attempt to repair or modify container valves or safety relief devices.
Replace valve outlet caps or plugs and container caps where supplied as soon as container is disconnected
from equipment.
Keep container valve outlets clean and free from contaminates particularly oil and water.
If user experiences any difficulty operating container valve discontinue use and contact supplier.
Never attempt to transfer gases from one container to another. Container valve guards or caps should be
in place.
Conditions for safe
storage, including any
incompatibilities
All electrical equipment in the storage areas should be compatible with the risk of a potentially explosive
atmosphere. Segregate from oxidant gases and other oxidants being stored. Containers should not be
stored in conditions likely to encourage corrosion. Stored containers should be periodically checked for
general conditions and leakage. Container valve guards or caps should be in place. Store containers in
location free from fire risk and away from sources of heat and ignition. Keep away from combustible
material.
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.
Fire-fighting measures
Promptly isolate the scene by removing all persons from the vicinity of the incident if there is a fire. No
action shall be taken involving any personal risk or without suitable training.
Contact supplier immediately for specialist advice. Move containers from fire area if this can be done
without risk. Use water spray to keep fire-exposed containers cool. If involved in fire, shut off flow
immediately if it can be done without risk. If this is impossible, withdraw from area and allow fire to burn.
Fight fire from protected location or maximum possible distance. Eliminate all ignition sources if safe to do
so.
Special protective equipment
for fire-fighters
Fire-fighters should wear appropriate protective equipment and self-contained breathing apparatus
(SCBA) with a full face-piece operated in positive pressure mode. For incidents involving large quantities,
thermally insulated undergarments and thick textile or leather gloves should be worn.
Containers If they are exposed to the fire, they shall be constantly cooled down by water sprays.
Containers may explode if they are overheated.

English
9SYSAER R32
2. 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. Inspect all the units for any visible or
hidden damage.
Conrmation of the type of unit ordered can be obtained by reading the maker’s plate (capacity, type and
air blowing conguration).
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 his representative.
Never store or transport the unit upside down. Protect unit at the job side from damages made by others.
When unit is stored on the ground, avoid mud store unit leveled.
The appliances are delivered fully assembled, factory tested and ready to operate.
Any modication 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:
²Commissioning shall be performed by specialised technicians from technical services approved by
the manufacturer.
²Maintenance shall be performed by technicians trained for this purpose.
²Only Original Equipment spare parts shall be used.
²All the operations listed in the present manual shall be performed within the required time limits.
THE WARRANTY SHALL BE NULL AND VOID IN THE EVENT
OF NON-COMPLIANCE WITH ANY OF THE ABOVE CONDITIONS.
3. WARRANTY
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 lled in by the
authorized Service Centre and sent by registered mail - notied 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.
4. PRESENTATION
All the models in the SYSAER R32 are produced to state-of-the-art design and manufacturing standards. In
this way, they offer guarantees of high performance and reliability as well as the capability of adapting to
all types of air conditioning installations. The unit has been designed for an outdoor mounted application,
ensuring perfectly weatherproof circulation of the air within the compartments. It is not adapted for any use
other than those specied in the present manual.
Improper usage of the unit or a use for purposes other than those originally intended, without the prior
approval by the manufacturer or its agents, could result in the unit functioning outside its safe operating
limits and could present risks to both personnel and property.
The SYSAER R32 is design very compact and it has an optimal foot print/weight ratio. Numerous accessories
and options can be added to the basic version to adapt it perfectly to the client’s specic requirements.
The SYSAER R32 units are designed to safeguard to environment and reduce building energy consumption
by the use of R32 as a refrigerant and double skin 25 mm panels for greater thermal insulation.
After the units are assembled, the refrigerating and electrical circuits are tested at the factory in order to
guarantee correct operation.
The are lled with an operational refrigerant uid charge and are subjected to pressure tightness tests.

English
X
Y
Z
0
10 SYSAER R32
5. CONTENTS OF PACKAGE
On opening the carton, check that all the accessories required for installation are present.
1 SYSAER R32
1 Installation and maintenance manual
1 Control manual
1 Siphon
5.1. OPTIONALS ACCESSORIES
Anti-vibration rubber pads
Duct connection frame
SEE APPENDIX
6. DIMENSIONS
7. HANDLING
7.1. NET WEIGHT
7.2. GRAVITY CENTER POSITION
SR R32 105 SR R32 120 SR R32 140
basic kg 1 685 1 805 1 855
Filter
G4 Kg 45 45 45
G4+F7 kg 65 65 65
G4+F9 kg 65 65 65
2 dampers Kg 115 115 115
3 dampers RECO Kg 430 450 450
Electric heating Kg 30 30 30
Warm water coil Kg 30 30 30
Xg Yg Zg
mm mm mm
SR R32 105 1 050 1 530 900
SR R32 120 1 000 1 450 900
SR R32 140 970 1 400 900

English
Never submit the metal work (panels, posts) of the SYSAER R32 to handling constraints, as only its
base is designed for that purpose.
Caution
The forklift must be tted with forks with a minimum length of 2.5m.
Caution
11SYSAER R32
The good method of handling depends on the model of SYSAER R32 and its nal destination.
²Take care to avoid any rough handling or impacts when unloading and moving the appliance.
²Before hoisting into position, test lift to insure stability and balance. Avoid twisting or uneven lifting
of the units.
²The units shall be carefully inspected before unit installation to make sure this has not happened.
²ll these sections have been inspected before leaving the factory. It is important to insure that no
bolts, screws or other xing system are loosened or missing before the commissioning.
7.3. MANUTENTION GENERALITES
7.3.1. HANDLING WITH A FORKLIFT
When a forklift is used to handle the SYSAER R32 units, lift them only along their width.
Place a safety wedge between the unit base and the fork lift truck to avoid damaging the unit’s structure
and casing.

English
Slings must never touch the unit casing of SYSAER R32.
Caution
The lifting point must suit the unit's centre of gravity.
Caution
12 SYSAER R32
7.3.2. HANDLING BY SLINGING
Lifting is also possible by slinging in four or six sling.
Rings attached rigidly to the unit structure are intended for completely safe handling.
It is essential to use a spreader or spacer so as not to damage the panels and the structure of the machine.

English
13SYSAER R32
8. TECHNICAL SPECIFICATIONS
8.1. PHYSICAL CHARACTERISTICS
SR R32 105 SR R32 120 SR R32 140
Supply voltage 400V/3~/50Hz
Number of refrigerang circuit 2 2 2
REFRIGERANT
Type R32
Factory charge SEE NAME PLATE
COMPRESSORS
Type Scroll
Number 2 2 2
Part load steps % 0/50/100 0/50/100 0/50/100
Crankcase heater W 2 x 70 2 x 70 2 x 70
INDOOR COILS
Type Tubes copper & fins aluminum
Number of rows 4 4 4
Frontal surface m² 3.24 3.24 3.24
INDOOR FAN
Type Plug Fan
Number (1) 2 2 2
Air ow rate (1)
Minimum m3/h 15 600 17 200 20 400
Nominal m3/h 19 200 21 500 25 500
Maximum m3/h 23 400 25 800 30 600
Power input kW 4.23 4.6 5.72
OUTDOOR COILS
Type Tubes copper & fins aluminum
Number of rows 3 3 3
Frontal surface m² 1.50 1.50 1.50
OUTDOOR FAN
Type Axial
Number 2 2 2
Diameter mm 900 900 900
Air ow rate Nominal m3/h 20 000 20 000 20 000
Power input kW 1.51 1.51 1.51
(1) EC standard fan

English
This equipment contains uorinated gas with greenhouse gas effects covered by the Kyoto
agreement.
Caution
SYSAER R32 units use the R32 HFC refrigerant which is a ammable gas classied A2L (Slightly
ammable). This gas is a subject to more important safety regulations due to their ammability
class A2L Reduced ammability so some precautions are required to prevent accidental build-up of
refrigerant. Particularly during charging of systems. Manufacturers recommend use of extract fans
while charging, particularly if the outdoor unit is used in an enclosed area. The standard EN378
denes requirements for safe concentration levels of the refrigerants.
Caution
Non-compliance with one of these obligations constitutes an offense and can result in nancial
penalties.
Furthermore, compliance of the equipment with the uorinated gases regulation must be proven to
the insurance company.
Caution
14 SYSAER R32
8.2. REFRIGERATION SPECIFICATIONS
8.2.1. REFRIGERANT CIRCUIT DIAGRAM
SEE APPENDIX
8.2.2. REFRIGERANT CHARGE
The type and quantity of refrigerating uid per circuit are indicated on the product plate.
The installer and end user will get informed on local environmental regulations for the installation, operation
and disposal of the equipment ; more particularly, for the collection of substances hazardous for the
environment (refrigerating uid, oil, antifreeze, etc.). A refrigerating uid, whatever it is, must not be vented.
Refrigerating uids must be handled by skilled personnel.
8.2.3. FLUOROCARBON GAS REGULATIONS
The EC No. 517/2014 regulation covering uorinated greenhouse gases requires of refrigeration equipment
operators to comply with the following ve obligations:
1. Installation, servicing, maintenance as well as checking the sealing must be carried out by qualied
personnel.
2. The uorinated gas must be recovered during servicing and maintenance as well as the end of the
installation.
3. All the necessary measures must be taken to prevent the leakage of uorinated gases and any leaks
must be repaired as rapidly as possible.
4. Regular checks on any leaks must be performed according to the following conditions:
for equipment containing uorinated greenhouse gases in quantities greater than or equal to
the equivalent of 5 tonnes of CO2but less than the equivalent of 50 tonnes of CO2:
at least every twelve months or, if a leak detection system is installed, at least every twenty-
four months
 for equipment containing uorinated greenhouse gases in quantities greater than or equal to
the equivalent of 50 tonnes of CO2but less than the equivalent of 500 tonnes of CO2:
at least every six months or, if a leak detection system is installed, at least every twelve
months
for equipment containing uorinated greenhouse gases in quantities greater than or equal to
the equivalent of 500 tonnes of CO2:
at least every three months or, if a leak detection system is installed, at least every six
months.
5. A document grouping a description of all the operations carried out on the cooling circuit must be
drafted and conserved.

English
15SYSAER R32
Greenhouse quantity gases ( kg of CO2) = Quantity of gas (kg) x GWP of the gas
Greenhouse gas quantity expressed in weight (kg)
and in equivalent of CO2
Gas quantity: Gas quantity contained in the machine
in kg (see product plate)
GWP (Global Warming Potential) some gas contained
in the machine (see product plate)
²GWP for R32 = 675 - Medium Category 300-
750
²GWP for R410A = 2088 - High category >750
8.2.3.1. GREENHOUSE GASES CALCULATION
Also according 2014 EU F-Gas Regulation (517/2014), Europe must reduce the Global Warming Performance.
R32 has a much lower impact on global warming when compared to its blended predecessors - its Global
Warming Potential (GWP) is signicantly lower than that of R410A.
8.2.3.2. ENVIRONMENTAL INNOVATION
8.3. ELECTRIC SPECIFICATIONS
SYSAER R32 BASIC
IMPORTANT
These datas are given for guidance only. They must be checked at commissioning according to prevailing
standards. They depend on the installation and the cables used.
A main fuse must mandatorily be provided on the power supply.
²Fuses not supplied
²Cables not supplied
SR R32 105 SR R32 120 SR R32 140
Supply voltage 400V / 3~ / 50Hz
Maximum intensity A 81.0 85.0 106.0
Total start intensity (without soft starter) A 284.0 288.0 346.0
Maximum intensity SR R32 105 SR R32 120 SR R32 140
EC Motor HPF A 13.0 13.0 13.0
SR R32 105 SR R32 120 SR R32 140
Power kW 48 48 48
Maximum intensity A 76.2 76.2 76.2
IFAN - BLAST FAN
ELECTRIC HEATING COIL
The maximum intensity absorbed by the SYSAER R32 as well as the total start-up intensity are calculated
by adding the basic values provided for the SYSAER R32 with the additional options.
²Zero impact on the ozone layer.
²75% less impact on global warming.
R410A R32
Composition Blend of 50%
R32 + 50% R125 Pure R32 (no blend)
GWP
(Global Warming Potential) 2087,5 675
ODP
(Ozone Depletion Potential) 0 0
R32 is a refrigerant with just one-third the global warming potential
of R410A, meaning less risk of damage to the environment.

English
-15
-10
-5
0
5
10
15
20
25
30
35
40
45
50
55
5 10 15 20 25 3
0
Using FSC option
Mixed outside air temperature (°C db)
Mixed air temperature before coil (°C wb)
-20
-15
-10
-5
0
5
10
15
20
-15 -10 -5 0 5 10 15 20 25 3
0
THERMO OFF
ATMOSPERIC GAS HEATER
OR HOT WATER COIL
THERMO OFF
CONDENSATION GAS HEATER
OR HOT WATER COIL
Mixed outside air temperature (°C db)
Mixed air temperature before coil (°C db)
16 SYSAER R32
8.4. OPERATING LIMITS
8.4.1. COOLING MODE
8.4.2. HEATING MODE

English
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.
Caution
R1
S2
Information
The gas burner is only available in congurations:
²Downward discharge: S1
²Discharge from the rear: S3
R2
S2
17SYSAER R32
9. CONFIGURATION OF THE UNIT
9.1. GENERALITIES
The unit is designed to be connected to a duct work. The duct network pressure loss must be related to
available outdoor pressure of SYSAER R32.
4 discharges and 3 intakes air congurations are available.
For each conguration, note the dimensions of the discharge air duct to be provided before the unit arrives
on site. Make sure that it is reproof and that it does produce toxic smoke in the event of a re in the
building. The interior surfaces must be smooth and cleanable to avoid contamination of the circulated air.
To ensure itself of a good air tightness and to water enters the machine and the air duct.
9.2. SUPPLY AIR
²Downward discharge: S1
²Sideway discharge: S2
²Discharge from the rear: S3
²Top discharge: S4
9.3. AIR INTAKE
²Return air from below: R1
²Return air from the side: R2
²Return air from the top: R4
Lower blowing (S1) or lower air intake (R1) require
the presence of a roof curb. For other versions, given
the unit’s weight, analyse the installation to avoid any
risk of damage to the bracket on which the unit will
be placed.
SEE APPENDIX
9.4. DUCT OUTLET DIMENSIONS

English
SUPPLY AIR
RETURN AIR
OUTDOOR
AIR
IF-0.1
IF-0.2
SAT-0.1
RAD-0.1
OAD-0.1
VOC/CO2
RAH
RAT-0.1
OAT-0.1
OAH
TEV-2.1
SG-2.1 DF-2.1
OF-2.1
RV-2.1
C-2.1
TEV-1.1
SG-1.1
DF-1.1
OF-1.1
RV-1.1
C-1.1
IC-0.1
PTLP-2.1
OCT-2.1
CDT-2.1 PTHP-2.1PSHP-2.1
PTLP-1.1
OCT-1.1
PSHP-1.1PTHP-1.1 CDT-1.1
SUPPLY AIRRETURN AIR
OUTDOOR AIR
AIR
EXTRACTED
18 SYSAER R32
9.5. ECONOMISER
9.5.1. ECONOMISER - 2 DAMPERS
The economiser is an assembly with two dampers connected to servomotors. The quantity of air entering the
building varies depending on the given setpoint and enables energy savings in both modes. The economiser
is used to ensure modulation of fresh air and recycled air ows in the building.