Iom SYSCOIL 2 Manual

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Fan coil units
Ventilo-convecteurs
Ventilatorkonvektoren
Ventilconvettori
Unidades fan coil
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
IOM SYSCOIL2 01-N-3
Part number / Code / Teil Nummer / Codice / Código : 3990790
Supersedes / Annule et remplace / Annulliert und ersetzt /
Annulla e sostituisce / Anula y sustituye : IOM SYSCOIL 01-N-2
0.48
¾
10.00 kW
0.79
¾
12.70kW
SysCoil 2
10 ÷ 80
84
¾
1548 m3/h

INSTALLATION INSTRUCTION
NOTICE D’INSTALLATION
INSTALLATIONSHANDBUCH
ISTRUZIONI INSTALLAZIONE
INSTRUCCIONES DE INSTALACIÓN
English
Français
Español
Deutsch
Italiano

English
2 SysCoil 2
CONTENTS
1. GENERAL RECOMMENDATIONS ........................................................................................................................................................ 3
1.1. SAFETY DIRECTIONS .......................................................................................................................................................................................................................3
1.2. WARNING.........................................................................................................................................................................................................................................3
2. INSPECTION AND STORAGE .............................................................................................................................................................. 4
3. WARRANTY...................................................................................................................................................................................... 4
4. MODEL NOMENCLATURE .................................................................................................................................................................. 4
5. TECHNICAL SPECIFICATIONS ............................................................................................................................................................. 4
5.1. OPERATING LIMITS..........................................................................................................................................................................................................................4
5.2. ELECTRICAL SPECIFICATIONS.........................................................................................................................................................................................................5
5.2.1. WITHOUT ELECTRIC HEATING ...................................................................................................................................................................................................................................5
5.2.2. WITH ELECTRIC HEATING...........................................................................................................................................................................................................................................5
6. DIMENSIONS .................................................................................................................................................................................... 5
7. HANDLING........................................................................................................................................................................................ 5
7.1. NET WEIGHT.....................................................................................................................................................................................................................................5
8. INSTALLATION .................................................................................................................................................................................. 6
8.1. CLEARANCE......................................................................................................................................................................................................................................6
8.2. UNIT LOCATION ...............................................................................................................................................................................................................................6
8.3. UNIT INSTALLATION........................................................................................................................................................................................................................7
8.3.1. VN / VC CONSOLE UNIT.............................................................................................................................................................................................................................................7
8.3.2. HN / HC CEILING UNIT...............................................................................................................................................................................................................................................7
8.4. CABINET REMOVAL.........................................................................................................................................................................................................................8
9. HYDRAULIC CONNECTIONS ............................................................................................................................................................... 9
9.1. OPERATING FACE ............................................................................................................................................................................................................................9
9.2. COIL WATER CONNECTIONS...........................................................................................................................................................................................................9
9.2.1. WATER COIL HEADERS............................................................................................................................................................................................................................................ 10
9.2.2. WATER CONNECTION OF CONTROL VALVES ....................................................................................................................................................................................................... 10
9.3. COIL WATER VOLUME ...................................................................................................................................................................................................................10
9.4. CONDENSATE DRAIN LINE ...........................................................................................................................................................................................................11
9.4.1. SYSCOIL 2 SC80....................................................................................................................................................................................................................................................... 11
9.5. INSTALLATION OF THERMOSTAT OR TEMPERATURE SENSOR (CHANGE OVER)..................................................................................................................11
9.5.1. TRM-FA..................................................................................................................................................................................................................................................................... 11
9.5.2. TAE20 OR AQUANET OR AQUASIMP.................................................................................................................................................................................................................... 11
9.6. WATER QUALITY............................................................................................................................................................................................................................12
10. ELECTRICAL CONNECTIONS........................................................................................................................................................... 13
10.1. WIRING DIAGRAM AND LEGEND..............................................................................................................................................................................................13
10.2. POWER SUPPLY...........................................................................................................................................................................................................................13
10.3. ELECTRICAL CONNECTIONS.......................................................................................................................................................................................................13
10.4. OPTIONAL ELECTRIC HEATER ....................................................................................................................................................................................................14
10.5. CONTROLS ...................................................................................................................................................................................................................................14
10.5.1. CONTROLS CONNECTIONS................................................................................................................................................................................................................................... 15
11. COMMISSIONING.......................................................................................................................................................................... 18
11.1. PRE-START CHECK LIST ..............................................................................................................................................................................................................18
11.1.1. ELECTRICAL CHECK ............................................................................................................................................................................................................................................... 18
11.1.2. HYDRAULIC CHECK................................................................................................................................................................................................................................................ 18
11.1.3. VISUAL CHECK ....................................................................................................................................................................................................................................................... 18
11.2. OPERATING CHECK LIST .............................................................................................................................................................................................................18
11.2.1. GENERAL................................................................................................................................................................................................................................................................ 18
11.2.2. ELECTRICAL............................................................................................................................................................................................................................................................ 18
11.2.3. FINAL CHECK.......................................................................................................................................................................................................................................................... 18
12. FINAL TASKS ................................................................................................................................................................................ 18
13. IN CASE OF WARRANTY - MATERIAL RETURN PROCEDURE ......................................................................................................... 19
14. ORDERING SERVICE AND SPARE PARTS ORDER ........................................................................................................................... 19
15. MAINTENANCE............................................................................................................................................................................. 19
15.1. SERVICING CHECKLIST................................................................................................................................................................................................................19
15.1.1. CASING ................................................................................................................................................................................................................................................................... 19
15.1.2. AIR FILTER .............................................................................................................................................................................................................................................................. 20
15.1.3. CONDENSATE RECOVERY TRAY........................................................................................................................................................................................................................... 21
15.1.4. HEAT EXCHANGER................................................................................................................................................................................................................................................. 21
15.1.5. FAN MOTOR ASSEMBLY....................................................................................................................................................................................................................................... 22
15.1.6. ELECTRICAL EQUIPMENT...................................................................................................................................................................................................................................... 22
15.1.7. HYDRAULIC CIRCUIT.............................................................................................................................................................................................................................................. 22

English
3SysCoil 2
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
OLIHDQGUHOLDELOLW\2QO\WKHVHUYLFHVRIDTXDOLʾHGWHFKQLFLDQFDQJXDUDQWHHWKHXQLWɂVVDIHRSHUDWLRQRYHUD
long service life.
Please read the following safety precautions very carefully before installing the unit.
1.1. SAFETY DIRECTIONS
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 fan-coil units may contain a small amount of oil incompatible with plastic polyethylene piping (PER/
HTA/PVC). The coil should be rinsed out before use to avoid any problem.
It is the installer’s responsibilityto contact their pipe supplierand take into account the general instructions
for the use of plastic pipes.
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 area.
,ISRVVLEOHDVVHPEOHWKHFRPSXOVRU\RURSWLRQDODFFHVVRULHVEHIRUHSODFLQJWKHDSSOLDQFHRQLWVʾQDOORFDWLRQ
(see instructions provided with each accessory).
In order to become fully familiar with the appliance, we suggest to read also our Technical Instructions.
7KHLQIRUPDWLRQFRQWDLQHGLQWKHVH,QVWUXFWLRQVDUHVXEMHFWWRPRGLʾFDWLRQZLWKRXWDGYDQFHQRWLFH
1.2. WARNING
Follow the safety rules in forces when you are working on your appliance.
7KHLQVWDOODWLRQFRPPLVVLRQLQJXVHDQGPDLQWHQDQFHRIWKHVHXQLWVVKRXOGEHSHUIRUPHGE\TXDOLʾHG
personnel having a good 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.
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,
WDNLQJ LQWR DFFRXQW VSHFLʾF FRQGLWLRQV RI WKH ORFDWLRQ DQG WKH FXUUHQW UHTXLUHG IRU DQ\ RWKHU DSSOLDQFH
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
4 SysCoil 2
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.
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. Do not stand or transport the machines with casing on end.
For storing, each carton is marked with "up" arrows. It must be stored indoors, completely protected from
rain, snow etc. The unit must not be damaged by changes in the weather (high and low temperatures).
Excessively high temperatures (above 60 °C) can harm certain plastic materials and cause permanent
damage. Moreover, the performance of certain electrical or electronic components can be impaired.
The appliances are delivered fully assembled, factory tested and ready to operate.
$Q\ PRGLʾFDWLRQ WR WKH XQLWV ZLWKRXW WKH PDQXIDFWXUHUɂV SULRU DSSURYDO VKDOO DXWRPDWLFDOO\ UHQGHU WKH
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
4. MODEL NOMENCLATURE
5. TECHNICAL SPECIFICATIONS
SEE APPENDIX
5.1. OPERATING LIMITS
Environmental
conditions
Minimum premise air temp. / new air intake / around the apparatus 5°C / 15% RH
Maximale premise air temp. / new air intake / around the apparatus 32°C / 70% RH
Water circuit
Maximum operating pressure 5 bars
Minimum inlet temperature (Without glycol) +5°C
Maximum inlet temperature +90°C

English
Avoid contact with the coil surfaces and their sharp edges as they can be dangerous.
Caution
5SysCoil 2
Size SC10 SC20 SC30 SC40 SC50 SC60 SC70 SC80
Power supply V
230V-50Hz / 230V-60Hz
Fan motor AC power W
36 35 81 59 86 112 161 188
Power supply V
230V-50Hz / 230V-60Hz
Fan motor EC power W
41 42 45 43 46 53 77 108
Fuse rating Am A
22222222
Fuse rating ASE / VDE A
22222222
Cable section mini mm²
3G1.5 3G1.5 3G1.5 3G1.5 3G1.5 3G1.5 3G1.5 3G1.5
IMPORTANT
These datas are given for guidance only. They must be checked aat 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
5.2. ELECTRICAL SPECIFICATIONS
5.2.1. WITHOUT ELECTRIC HEATING
5.2.2. WITH ELECTRIC HEATING
Size Electric heating capacity Fuse rating Gg Fuse rating ASE / VDE Cable section mini
W A A mm²
SC10
500 4 10 3G1.5
SC20
500 4 10 3G1.5
SC30
500 4 10 3G1.5
1000 4 10 3G1.5
SC40
1250 8 10 3G2.5
2500 16 16 3G2.5
SC50
1250 8 10 3G2.5
2500 16 16 3G2.5
SC60
1250 8 10 3G2.5
2500 16 16 3G2.5
SC70
1000 8 10 3G2.5
2000 16 16 3G2.5
SC80
1500 10 10 3G2.5
3000 16 16 3G2.5
SEE APPENDIX
6. DIMENSIONS
7. HANDLING
7.1. NET WEIGHT
Always take great care when handling the unit. Do not lift the unit by its condensate outlet, by the water
connectors and by the mounting lugs.
Size SC10 SC20 SC30 SC40 SC50 SC60 SC70 SC80
VC / HC 2 pipes kg
18 18 21.5 27 30 35 35 50
4 pipes kg
19 19 22.5 29 32 37 37 52
VN / HN 2 pipes kg
12 12 14.5 20 22 26 27 41
4 pipes kg
13 13 15.5 22 24 28 29 43

English
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 void.
Caution
The unit base shall be arranged 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.
Caution
400
400
100
4
400
400
400
100
6 SysCoil 2
8. INSTALLATION
Important notes :
²Inspect the fan coil unit nameplate sticked on the back of the unit chassis.
²VN / VCFRQVROHXQLWVDUHWREHLQVWDOOHGYHUWLFDOO\DJDLQVWDZDOORURQDʿRRUXVLQJVXSSRUWIHHW
²Only HN / HC ceiling units are designed for ceiling mounting.
²After installing the unit, please be sure that there is no more longitudinal and transversal
counterslopes avoiding condensate evacuation.
8.1. CLEARANCE
7KHXQLW PXVWEHLQVWDOOHGRQ DʾUPOHYHOIRXQGDWLRQRIDGHTXDWHVWUHQJWKWRVXSSRUWLWVIXOORSHUDWLQJ
weight.
1. It must be high enough to permit good drainage of defrost water with siphon
2. The unit must be pitched slightly towards condensate drain outlet to provide positive drainage of
condensates.
3. $OOHOHFWULFDODQGGXFWZRUNFRQQHFWLRQVWRWKHXQLWPXVWEHPDGHYLDʿH[LEOHFRQQHFWLRQVWRSUHYHQW
transmission of vibration.
4. In addition to the service clearances noted on the dimension sheet it is essential that provision is
made for adequate and safe service access.
8.2. UNIT LOCATION
Fan coil units are designed to be installed in a controlled environment. Each unit should be located on the
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FRQGHQVDWLRQSLSLQJVKRXOGEHORFDWHGDFFRUGLQJO\PDNLQJVXUHWKHSLSLQJZLOOʾWLQWRWKHFRQʾQHVRIWKH
fan coil chassis and cabinet.

English
100
H
E
F
D
C
Ground level Return
Discharge
M8 fixing screws
4 x 8mm
7SysCoil 2
8.3. UNIT INSTALLATION
8.3.1. VN / VC CONSOLE UNIT
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wall through the both oblong holes located on the upper part of the unit chassis.
On the VC model, to hang the unit to the wall, it is necessary to remove the cabinet.
'ULOO KROHV RQ WKH ZDOO LQ DFFRUGDQFH WR WKH GLPHQVLRQV PHQWLRQHG ,QVWDOO WKH ʾ[LQJ VFUHZV FRQWUDFWRU
supply).
3ODFHWKHFKDVVLVXQLWRYHUWKHʾ[LQJVFUHZVWKURXJKWKHREORQJKROHVDQGVFUHZLWGLUHFWO\WRWKHZDOO
Ensure adequate space for pipings and electrical connection, and check side of connection.
8.3.2. HN / HC CEILING UNIT
The HN / HCXQLWVDUHGHVLJQHGIRUFHLOLQJPRXQWLQJ5HFRPPHQGHGʾ[LQJE\0WKUHDGHGURGRUPP
diameter anchor bolts (contractor supply).
When the HN units are ducted at the inlet side, the controller return sensor must be located outside the fan
compartment in order to ensure its good operation.
)RUWKHPRGHO6&XVHWKHVLGHʾ[LQJKROHV
For the HC model with cabinet, it is necessary to remove the cabinet before installing it.
Follow instructions for cabinet removal.
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supply).
3ODFHWKHFKDVVLVXQLWRQWKHʾ[LQJSRLQWVDQGVFUHZLWGLUHFWO\WRWKHFHLOLQJRUWRWKHYHULWDEOHVXSSRUW
The fan coil unit should be pitched towards the drain side, to facilitate condensate evacuation.
On units with front air intake,
dimension 100 is not required.
5HFRPPHQGHG ʾ[LQJ E\ 0
threaded rod with H8 hexagonal nut
or 8 mm diameter anchor.
Size SC10 SC20 SC30 SC40 SC50 SC60 SC70 SC80
Cmm
189 189 374 559 744 929 744 /
Dmm
428 428 613 798 983 1168 983 1240
Emm
415 415 415 415 415 415 524 /
Fmm
149 149 149 149 149 149 149 157
Hmm
//////208208

English
When removing cabinet do not pull or lift it up by the discharge grilles, to avoid any damages on
articulated fasteners of the access doors.
Caution
8 SysCoil 2
8.4. CABINET REMOVAL
On the VC and HC models, to hang the unit to the wall, it is necessary to remove
the cabinet.
To achieve this:
²Remove the fastener screws from the access hatch situated at the end of
the unit, on the electrical connections side.
²Withdraw the four screws that hold the
FDVLQJDWWDFKHGWRWKHWZRFKDVVLVʿDQNV
²Then, lift the casing vertically by pulling its
forwards. Place it carefully to one side.

English
The fan-coil units may contain a small amount of oil incompatible with plastic polyethylene piping
(PER/HTA/PVC). The coil should be rinsed out before use to avoid any problem.
It is the installer’s responsibility to contact their pipe supplier and take into account the general
instructions for the use of plastic pipes (PER/HTA/PVC).
Caution
In certain cases the tubes of bottom are not drainable. However, the hydraulic connections on the
lower part of the coil should be vented to the atmosphere by disconnecting all connectors, valves
and pipes from the main hydraulic circuit.
Caution
If the water pipes are exposed to temperatures below 0 °C, take the necessary precautions
(draining, antifreeze, etc.) to avoid the coils freezing. Adding antifreeze to the circuit reduces the
unit's performance (if necessary, please contact our sales network).
Caution
4
3
2
1
Air vents
orifices
9SysCoil 2
9. HYDRAULIC CONNECTIONS
9.1. OPERATING FACE
The operating face of Left/Right
YHUVLRQV LV GHʾQHG LQ UHODWLRQ WR WKH
position of the hydraulic connections
when the unit is viewed facing the
operator.
Note: In the example below, the
operating face is on the right.
9.2. COIL WATER CONNECTIONS
7KHXQLWVDUHHTXLSSHGLQWKHLUVWDQGDUGSLSHVFRQʾJXUDWLRQZLWK
a main chilled water coil with 2 rows (SC10), 3 rows (SC20 to SC80).
,QWKHSLSHVFRQʾJXUDWLRQWKHXQLWLVHTXLSSHGLQWKHVDPHEORFN
with 3 rows (SC10), 4 rows (SC20 to SC80), with chilled water coil
and heated water coil 1 row (on an independent circuit).
The coil headers are equipped with air vent. To vent the air from
the coil, use the air vent located on the upper part of the upper
header. To drain the water, use the drain plug located on the lower
SDUWRIWKHORZHUKHDGHU7KHFRLOV0867EHGUDLQHGRIʿXLGLQWKH
event of the unit being kept out of service in buildings subjected to
negative ambient temperatures with the possibility of the coil icing.
Flexible pipes are recommended forconnecting the coils.Take care not to over-tighten the water connections.
Over-tightening can lead to excessive strains on the materials in the event of major temperature variations.
All the water pipes must be insulated to avoid sweating and heat loss.
OPERATING FACE
1 2 3 4
Entry Output Entry Output
2 pipes
or or //
4 pipes

English
To avoid damaging the coil, tighten the water pipe connectors on each header
using a counter-wrench.
When installing the unit, take care not to push the coils headers towards the
inside of the unit when tightening the connections.
Caution
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OR/AND upstream in the hydraulic circuit. This is to prevent chilled water from circulating in the
appliance when the fan is not operational (condensation issue) or to prevent the simultaneous
circulation of chilled water and hot water in a 4-pipes exchanger.
Caution
4
3
2
1
4
3
2
1
10 SysCoil 2
9.2.1. WATER COIL HEADERS
Each water coil header has 1 pipe connection for water supply and water return.
Due to the coil design and small effect on capacity, there is no preferential water supply and water return on
fan coil units. However we recommend water supply on the lower header of the coil.
9.2.2. WATER CONNECTION OF CONTROL VALVES
The use of regulation valves (supplied as an accessory or by the client) is mandatory to ensure that the
appliance operates correctly.
Size SC10 SC20 SC30 SC40 SC50 SC60 SC70 SC80
2 pipes L
0.41 0.61 0.89 1.17 1.45 1.73 2.19 2.60
4 pipes L
0.41 0.61 0.89 1.17 1.45 1.73 2.19 2.60
L
0.20 0.20 0.30 0.39 0.48 0.58 0.73 0.92
Size SC10 SC20 SC30 SC40 SC50 SC60 SC70 SC80
Headers
G ½" G ½" G ½" G ½" G ½" G ½" G ½" G ½" G ½" G ½" G ½" G ½" G ¾" G ½" G ½" G ½"
Valve
G ½" G ½" G ½" G ½" G ½" G ½" G ½" G ½" G ½" G ½" G ½" G ½" G ¾" G ½" G ¾" G ½"
9.3. COIL WATER VOLUME
2-way on/off
valves
3-way on/off
valves

English
After installing the unit, be sure that there is no more longitudinal and transversal counterslopes
avoiding condensate evacuation.
Caution
OK
11SysCoil 2
9.4. CONDENSATE DRAIN LINE
For that, use a square and spirit level to make sure that fan coil unit is level and that it is at a 90 degree
DQJOHEHWZHHQWKHZDOODQGʿRRUVHHʿXRUHVFHQWVWLFNHURQXQLWFKDVVLV
1RWH,IWKHʿRRUDQGWKHZDOODUHQRWDWULJKWDQJOHLWPD\EHQHFHVVDU\WRVKLPWKHIDQFRLOXQLWWRLQVXUH
proper installation. Manufacturer will not accept any responsability on units not being on proper level.
The thermostat (change-over switch) supplied is
to be mounted on the water supply pipe.
The temperature sensor (change over)
VXSSOLHG LV WR EH ʾWWHG WR WKH ZDWHU LQOHW
tube.
Before assembling the change over sensor,
coat the tube with heat conducting paste
to guarantee that the real temperature is
recorded.
The 9 and 10 change over sensor inputs can
be connected to the mains power supply. If
it is necessary to extend the sensor wires,
ensure that wires appropriate for this voltage
are used.
Crimp the 6.35 F fast-on clips with their insulator
bushes (supplied) on the wires of this thermostat.
OPERATING TEMPERATURE RANGE:
²Opening 30 ± 4°C
²Closing 15 ± 4°C
SysCoil 2
SysCoil 2
9.4.1. SYSCOIL 2 SC80
Each fan coil unit is supplied with a 16 mm ID condensate S-shaped pipe.The drain pipe extends approximately
PPRXWRIWKHSLSLQJFRPSDUWPHQWWRHQVXUHHLWKHUʿRRURUZDOOFRQQHFWLRQWRWKHPDLQGUDLQSLSLQJ
For the special case of a horizontal encased HC unit, you must follow the connections as shown below:
9.5. INSTALLATION OF THERMOSTAT OR TEMPERATURE SENSOR (CHANGE OVER)
9.5.1. TRM-FA
9.5.2. TAE20 OR AQUANET OR AQUASIMP

English
If the water circuit is to be drained for a time exceeding one month, the circuit must be fully
charged with nitrogen to prevent any risk of corrosion by differential venting.
Caution
The manufacturer is not liable for recommendations in terms of water treatment (call a specialized
company).
However, this matter has a critical nature, and particular care must be given to ensure that the type
of treatment applied is effective.
The liability of the manufacturer or its representative will not be sought when non treated water
or non compliant quality water is used.
Caution
12 SysCoil 2
9.6. WATER QUALITY
The water must be analyzed; the hydraulic network system installed must include all elements necessary
IRU ZDWHU WUHDWPHQW ʾOWHUV DGGLWLYHV LQWHUPHGLDWH H[FKDQJHUV GUDLQ YDOYHV YHQWV FKHFN YDOYHV HWF
according to the results of the analysis.
Using improperly treated or non treated water in the SysCoil 2 may cause scaling, erosion, corrosion or
algae or sludge deposits in the exchangers. Refer to a specialist skilled in water treatment to determine
any treatment to apply. The manufacturer will not be held liable for damages caused when non treated or
improperly treated water, demineralized water, salty water or sea water are used.
Apply the following guidelines :
²No NH4+ammonium ions in the water, highly detrimental to copper. <10mg/l
²Cl-chloride ions are detrimental to copper with a risk of puncture by picking corrosion. <10mg/l.
²SO42- sulphate ions may cause perforating corrosion. < 30mg/l.
²1RʿXRULGHLRQVPJO
²No Fe2+ and Fe3+ ions, particularly in case of dissolved oxygen. Fe< 5mg/l with dissolved oxygen <
5mg/l. The presence of these ions with dissolved oxygen indicates corrosion of steel parts, likely
to generate corrosion of copper parts under Fe deposits, particularly in the case of multitubular
exchangers.
²Dissolved silica: silica is an acid element of water and may also cause corrosion. Content < 1mg/l.
²Water hardness: TH > 2.8K. Values between 10 and 25 may be recommended. This facilitates scaling
deposits likely to limit copper corrosion. Excess TH values may lead to clogging the pipes.
²TAC<100
²Dissolved oxygen: Prevent any sudden change in the water's oxygenation conditions. Also, avoid
deoxygenating water by sparging inert gas as well as overoxygenating it by pure oxygen sparging.
Disturbing oxygenation conditions destabilizes copper hydroxides and particle salting-out.
²Electrical Resistivity - Conductivity: The higher the resistivity, the slower the corrosion. Values above
3000 ohm/cm are preferred. A neutral environment favours maximum resistivity. For electrical
conductivity, values around 200-600 S/cm can be recommended.
²pH: neutral pH at 20°C (7 < pH < 8)

English
To perform electrical wiring of the unit, please refer to the wiring diagram pasted on the unit
casing.
Caution
13SysCoil 2
SEE APPENDIX
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.
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electrical standards and the wiring diagram corresponding to the unit model.
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null and void.
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supply terminals, both at start-up and under full load operating conditions.
The power supply cable shall be selected in accordance with the following criteria:
1. Power supply cable length.
2. Maximum unit starting current draw – the cables shall supply the appropriate voltage to the unit
terminals for starting.
3. Power supply cables’ installation mode.
4. Cables’ capacity to transport the total system current draw.
Short circuit protection shall be provided. This protection shall comprise fuses or circuit breakers with high
breaking capacity, mounted on the distribution board.
A device to disconnect all the power conductors with an approved minimum opening distance must be
included in the mains power supply according to best installation practices.
10. ELECTRICAL CONNECTIONS
10.1. WIRING DIAGRAM AND LEGEND
10.2. POWER SUPPLY
All fan coil units are designed for operation under 230 volts, single phase, 50 or 60 cycles .
A voltage variation of ± 10 % with regard to nominal voltage 230 V is acceptable.
10.3. ELECTRICAL CONNECTIONS
SE 4546 SysCoil 2 AC motor terminal block 230V 50Hz/60Hz +/- 10%
SE 4547 SysCoil 2 AC motor CMV 230V 50Hz/60Hz +/- 10%
SE 4548 SysCoil 2 AC motor TBMV-4P/2PEH 230V 50Hz/60Hz +/- 10%
SE 4549 SysCoil 2 AC motor AQUANET 230V 50Hz/60Hz +/- 10%
SE 4550 SysCoil 2 EC motor terminal block 230V 50Hz/60Hz +/- 10%
SE 4551 SysCoil 2 EC motor CMV 230V 50Hz/60Hz +/- 10%
SE 4552 SysCoil 2 EC motor TBMV-4P/2PEH 230V 50Hz/60Hz +/- 10%
SE 4553 SysCoil 2 EC motor AQUANET 230V 50Hz/60Hz +/- 10%
SE 4554 SysCoil 2 EC motor terminal block without Ecospeed3 230V 50Hz/60Hz +/- 10%
SE 4555 SysCoil 2 AC motor TBMV C/O 230V 50Hz/60Hz +/- 10%
SE 4556 SysCoil 2 AC motor TBMV 2P/2P REV 230V 50Hz/60Hz +/- 10%
SE 4557 SysCoil 2 EC motor TBMV 2P/2P REV 230V 50Hz/60Hz +/- 10%

English
Manufacturer or its representative cannot be held responsible for accidents resulting from
incorrect or non-existent earthing.
Caution
The electrical heating resistances must never operate without ventilation.
Caution
Do not connect several units to a single ventilation speed selector or regulation thermostat
without using auxiliary relays.
Check that the current absorbed by the motors is compatible with the cut-out capacity of the
control device contacts.
Caution
14 SysCoil 2
If the local control includes an remote ambient temperature sensor and/or a set temperature adjustment
module, these shall be connected with shielded cable and shall not pass through the same conduits as the
power supply cables as the voltages induced may create reliability faults in the unit’s operation.
Before making the connections, be sure that the available power supply has the same voltage and phase as
that shown on the fan coil unit nameplate.
Each fan coil unit is supplied with a terminal strip located on the opposite side of piping connections.
Line and low voltage wiring must be done in accordance with electrical code whichever is applicable.
Earthing of unit is imperative.
NoteLIHOHFWULFDOZLULQJRUFRQGXLWFRPHVWKURXJKWKHʿRRUWKH\PXVWEHWLJKWDORQJWKHLUSDVVDJHWKURXJK
WKHʿRRU
10.4. OPTIONAL ELECTRIC HEATER
On request, all fan coil units can be factory mounted with an electric heater.
Do not install the electric heater on existing unit without using the supply air grilles resistant to high
temperature.
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limiting safety device in compliance with IEC 66375.
10.5. CONTROLS
As standard, the units are supplied without regulation equipment.
However, certain control devices (fan speed selector, remote thermostat, etc.) can be supplied according to
request.
If a TRM remote temperature regulation thermostat is supplied, it must only control a single unit. If this
is not the case, you must include a relay box in the circuitry.
(1) : Available in 2 steps suitable for Aqu@Net control.
Size SC10 SC20 SC30 SC40 SC50 SC60 SC70 SC80
BE1
W
500 500 500 1250 1250 1250 1000 1500
Mini. air
ʿRZ
m3/h
112 112 155 163 230 345 549 665
BE2
W
//1000
(500 + 500) 2500 (1250 + 1250) 2500 (1250 + 1250) 2500 (1250 + 1250) 2000 (1000 + 1000) 3000 (1500 + 1500)
Mini. air
ʿRZ
m3/h
/ / 315 230 410 510 549 665

English
15SysCoil 2
10.5.1. CONTROLS CONNECTIONS
The connection is different depending on the selected control accessory:
²AQUANET
²AQUASIMP
²TRM-FA
²TAE20
SEE APPENDIX
10.5.1.1. AQUANET OR AQUASIMP
SEE SPECIFIC MANUAL
AQUANET AQUASIMP
10.5.1.2. ROOM THERMOSTAT TRM-FA
10.5.1.2.1. USE
10.5.1.2.2. USWITCHES
10.5.1.2.3. DIMENSIONS
The room thermostat of the air conditioner regulates the room
WHPSHUDWXUH,WLVGHVLJQHGIRUFORVHGGU\URRPVVXFKDVʿDWV
RIʾFHVHWF
Maximum acceptable relative humidity of the air : 95%. This
value should not be exceeded.
Avoid condensation.
Linear switch
High Speed Medium speed Lown Speed
Switch 0 - I
²ON "I"
²OFF "0"
Linear switch
²cooling
²heating

English
16 SysCoil 2
10.5.1.2.4. ELECTRICAL CONNECTIONS
Connection of the thermostat TRM-FA.
Connections should be made according to the diagram (SEE APPENDIX).
Max. cross-sectional area of wires : 2,5 mm2
10.5.1.2.5. WALL MOUTING
²Remove the thermostat control knob, the screw and the cover.
²2QDʿDWVXUIDFHPRXQWWKHFRQWUROSDQHOXVLQJSOXJVDQGVFUHZV
²Install the cover, the screw and the thermostat control knob.
10.5.1.2.6. TECHNICAL CHARACTERISTICS
Operating voltage
230V 50Hz
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SPDT
Temperature range
5 to 30°C
Switching current at 230V AC
6A (cos M=1) / 3A (cos M=0.6)
Switching differential
approx. 0,5 K
Sensor system
< bimetal
Switches
ON / OFF
mode of operation
fan speed
10.5.1.2.7. FINAL OPERATIONS
ADJUSTMENT OF THE TEMPERATURE RANGE
The room thermostat is set in the factory for a minimum temperature of +5°C and a max. temperature of
+30°C.
Two rings are provided inside the knob for reducing the temperature range.
²Example: 12°C to 25°C.
ADJUSTMENT PROCEDURE
1. Setting the temperature range
e.g. max. 25°C, min. 12°C.
2. Remove the control knob.
3. Use a pointed object to align the mark on the red ring (max. value) with the desired maximum
temperature (25°C), turning the red index opposite the outside numbers counterclockwise.
4. Use a pointed object to align the mark on the blue ring (min. value) with the desired minimum
temperature (12°C), turning the blue index opposite the inside numbers clockwise.
5. Install the control knob.
The temperature ranges can be graduated in:
²degrees Celsius °C
from 5°C to 30°C
²number 1 to 6
1=5°C
2=10°C
3=15°C
4=20°C
5=25°c
6=30°C

English
2 3 4
56 1
17SysCoil 2
10.5.1.3. TAE20 ROOM THERMOSTAT
10.5.1.3.1. FIELDS OF APPLICATION
²Regulating ambient temperature in rooms heated or cooled.
²Opening and closing the valve.
²Cutting in and out the electric heating.
²Controlling the three fan speed.
10.5.1.3.2. DESCRIPTION
The unit comprises two parts:
²A plastic case, housing the electronics, the controls and an internal ambience sensor.
²A mounting plate.
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The screw terminal connections are located on the mounting plate, with the DIP switches on the back of
the case.
10.5.1.3.3. ADJUSTMENT AND CONTROL ELEMENTS
²Operating mode switch "ON-OFF" and manual fan
speed selection).
²Electro-luminescent diodes for displaying the heating
and cooling modes and the fan.
²Minimum temperature setting limiter (adjustable by
increments of 1 K). Mechanical stop accessible by
removing the button 5.
²Maximum temperature setting limiter (adjustable by
increments of 1 K). Mechanical stop accessible by
removing the button 5.
²Ambient temperature setting adjustment button.
²Set of DIP switches.
DIP
switch ref. 6 Function N° "ON" position "OFF" position
1
Fan control Fan control is temperature
dependent in all modes In normal mode, the fan control is
independent of the temperature
1
2
Mode changing via an external
switch Switching between normal mode and energy saving mode Switching between normal mode and
stand by
1
3
Switch action direction for external
mode switching
Switch activated when the switch
is closed
(N.O. "Normally open")
1
Switching activated when the switch
is open
(N.C. "Normally close")
4
Stand by Antifreeze control deactivated Antifreeze control activated
1
5
Differential 1 K in heating mode
1
0,5 K in cooling mode 4 K in heating mode 2 K in cooling mode
6
Neutral zone in normal mode 2 K
1
) 5 K
7
Temperature setting variance 2 K
1
)4 K
8
Electric heating Activated in cooling mode
1
)Deactivated in cooling mode
1 Factory setting
REFER TO SPECIAL TAE 20 ROOM THERMOSTAT MANUAL

English
18 SysCoil 2
11. COMMISSIONING
11.1. PRE-START CHECK LIST
11.1.1. ELECTRICAL CHECK
1. Electrical installation has been carried out according to unit wiring diagram and the Supply Authority
Regulations.
2. Size fuses or circuit breaker has been installed at the main switchboard.
3. 6XSSO\YROWDJHVDVVSHFLʾHGRQXQLWZLULQJGLDJUDP
4. $OOFDEOHVDUHSURSHUO\LGHQWLʾHGDQGWLJKWFRQQHFWHGDWWKHXQLW
5. the cables and wires are clear of or protected from pipework and sharp edges.
11.1.2. HYDRAULIC CHECK
1. &KHFNWKDWWKHK\GUDXOLFFLUFXLWLVʾOOHGFRUUHFWO\DQGWKDWWKHʿXLGʿRZVIUHHO\ZLWKRXWDQ\VLJQVRI
leaks or air bubbles. When ethylene glycol anti-freeze is used, check that the concentration level is
correct.
2. $GMXVWWKHZDWHUʿRZLQRUGHUWRFRPSO\ZLWKWKHVSHFLʾFDWLRQV
3. Check that the water quality complies with the indicated standards.
4. Check that the condensates drainage hose is connected and allows liquid to drain freely.
Check that condensates actually drain properly (installation with or without drainage pump) by
pouring water into the condensates tray (pump electricity supply switched on).
11.1.3. VISUAL CHECK
1. 8QLWPRXQWHGDVVSHFLʾHG
2. For loose or missing bolts or screws.
3. Be sure that the fan wheel is rotating free on it shaft.
4. 0DNHVXUHWKDWWKHʾOWHULVFRUUHFWO\SRVLWLRQQHGRQLWVEUDFNHW
5HʾWWKHFDELQHWRQWKHVC and HC fan coil unit.
7KHFDELQHWZLOOEHʾ[HGE\WKHERWKVFUHZV5HIHUWRWKHiCABINET REMOVAL, page 8.
11.2. OPERATING CHECK LIST
11.2.1. GENERAL
Cheek for any unusual noises or vibration in the running components, particularly the indoor fan drive
system.
11.2.2. ELECTRICAL
11.2.2.1. OPERATING VOLTAGE:
Recheck voltage at unit supply terminals.
11.2.2.2. CONTROL
1. Operate system and thermostat switches.
2. Check unit is wired for correct control of unit fan, cooling and heating modes.
1. Unit clean and free of remainder installation material.
11.2.3. FINAL CHECK
,IQHHGHGʾ[WKHFDEOHVDQGWKHSLSHVRQWKHZDOOZLWKFODPSLQJFROODUV
Operate the air conditioner in the presence of the user and explain all functions.
6KRZKLPKRZWRUHPRYHFOHDQDQGSODFHEDFNWKHʾOWHUV
12. FINAL TASKS