AERMEC Omnia UL 11 N Technical specifications

MANUALE D’USO E INSTALLAZIONE
USE AND INSTALLATION MANUAL
MANUEL D’UTILISATION ET D’INSTALLATION
BEDIENUNGS- UND INSTALLATIONSANLEITUNG
MANUAL DE INSTRUCCIONES E INSTALACIÓN
VENTILCONVETTORE PER INSTALLAZIONE UNIVERSALE
CON TERMOSTATO ELETTRONICO
FAN COIL FOR UNIVERSAL INSTALLATION
WITH ELECTRONIC THERMOSTAT
VENTILO-CONVECTEUR POUR INSTALLATION UNIVERSELLE
MUNI DE THERMOSTAT ÉLECTRONIQUE
GEBLÄSEKONVEKTOR FÜR UNIVERSELLEN EINBAU
MIT ELEKTRONISCHEM THERMOSTAT
FAN COIL PARA INSTALACIÓN UNIVERSAL
CON TERMOSTATO ELECTRÓNICO
IULNLJ 1002 - 6976415_00
Omnia UL N
Sostituisce il • Replace • Remplace le n° • Ersetzt • Sustituye a: 4528500_01 / 0809
Omnia UL 11 N
Omnia UL 16 N
Omnia UL 26 N
Omnia UL 36 N

Conservare i manuali in luogo asciutto, per evitare il deterio-
ramento, per almeno 10 anni per eventuali riferimenti futuri.
Leggere attentamente e completamente tutte le informa-
zioni contenute in questo manuale. Prestare particolarmen-
te attenzione alle norme d’uso accompagnate dalle scritte
“PERICOLO” o “ATTENZIONE” in quanto, se non osservate,
possono causare danno alla macchina e/o a persone e cose.
Per anomalie non contemplate da questo manuale, interpellare
tempestivamente il Servizio Assistenza di zona.
L'apparecchio deve essere installato in maniera tale da rendere
possibili operazioni di manutenzione e/o riparazione.
La garanzia dell'apparecchio non copre in ogni caso i costi
dovuti ad autoscale, ponteggi o altri sistemi di elevazione che si
rendesero necessari per effettuare gli interventi in garanzia.
AERMEC S.p.A. declina ogni responsabilità per qualsiasi danno
dovuto ad un uso improprio della macchina, ad una lettura
parziale o superficiale delle informazioni contenute in questo
manuale.
Il numero di pagine di questo manuale è: 92
OSSERVAZIONI
Store the manuals in a dry location to avoid deterioration, as
they must be kept for at least 10 years for any future reference.
All the information in this manual must be carefully read and
understood. Pay particular attention to the operating standards
with “DANGER” or “WARNING” signals as failure to comply
with them can cause damage to the machine and/or persons or
objects.
If any malfunctions are not included in this manual, contact the
local After-sales Service immediately.
The apparatus must be installed in such a way that maintenan-
ce and/or repair operations are possible.
The apparatus's warranty does not in any case cover costs due
to automatic ladders, scaffolding or other lifting systems neces-
sary for carrying out repairs under guarantee.
AERMEC S.p.A. declines all responsibility for any damage
whatsoever caused by improper use of the machine, and a par-
tial or superficial acquaintance with the information contained
in this manual.
The number of pages in this manual is : 92
REMARKS
Conserver les manuels dans un endroit sec, afin d’éviter leur
détérioration, pendant au moins 10 ans, pour toutes éventuelles
consultations futures.
Lire attentivement et entièrement toutes les informations con-
tenues dans ce manuel. Prêter une attention particulière aux
normes d’utilisation signalées par les inscriptions “DANGER”
ou “ATTENTION”, car leur non observance pourrait causer un
dommage à l’appareil et/ou aux personnes et objets.
Pour toute anomalie non mentionnée dans ce manuel, contacter
aussitôt le service après-vente de votre secteur.
Lors de l'installation de l'appareil, il faut prévoir l'espace
nécessaire pour les opérations d'entretien et/ou de réparation.
La garantie de l'appareil ne couvre pas les coûts dérivant de
l'utilisation de voitures avec échelle mécanique, d'échafaudages
ou d'autres systèmes de levée employés pour effectuer des inter-
ventions en garantie.
AERMEC S.p.A. décline toute responsabilité pour tout domma-
ge dû à une utilisation impropre de l’appareil et à une lecture
partielle ou superficielle des informations contenues dans ce
manuel.
Ce manuel se compose de pages: 92
REMARQUES
Guarde los manuales en un lugar seco para evitar su deterioro,
al menos durante 10 años, por si fuera posible consultarlos en
el futuro.
Leer atenta y completamente todas las informaciones contenidas
en este manual. Preste particular atención a las normas de uso
acompañadas de las indicaciones “PELIGRO” o “ATENCIÓN”
puesto que, si no se cumplen, pueden causar el deterioro de la
máquina y/o daños personales y materiales.
En caso de anomalías no contempladas en este manual, contac-
te inmediatamente con el Servicio de Asistencia de su zona.
El aparato debe ser instalado de manera que haga posibles las
operaciones de mantenimiento y/o reparación.
En cualquier caso, la garantía del aparato no cubre los costes
derivados del uso de escaleras automáticas, andamios u otros
sistemas de elevación necesarios para efectuar las intervencio-
nes en garantía.
AERMEC S.p.A. declina cualquier responsabilidad por cualquier
daño debido a un uso impropio de la máquina, o bien a una
lectura parcial o superficial de las informaciones contenidas en
este manual.
Número de páginas de este manual:92
OBSERVACIONES
Bewahren Sie die Gebrauchsanleitungen min-
destens 10 Jahre für eventuelles zukünfti-
ges Nachschlagen an einem trockenen Ort auf.
Alle in diesem Handbuch enthaltenen Informationen auf-
merksam und vollständig lesen. Insbesondere auf die
Benutzungsanweisungen mit den Hinweisen "VORSICHT" oder
"ACHTUNG" achten, da deren Nichtbeachtung Schäden am
Gerät bzw. Sach- und Personenschäden zur Folge haben kann.
Bei Betriebsstörungen, die in dieser Gebrauchsanweisung nicht
aufgeführt sind, wenden Sie sich umgehend an die zuständige
Kundendienststelle.
Das Gerät so aufstellen, dass Instandhaltungs- und/oder
Reparaturarbeiten durchgeführt werden können.
Die Garantie des Gerätes deckt in keinem Fall Kosten für
Feuerwehrleitern, Gerüste oder andere Hebesysteme ab, die
sich für die Garantiearbeiten als erforderlich erweisen sollten.
Die AERMEC S.p.A. übernimmt keine Haftung für Schäden aus
dem unsachgemäßen Gebrauch des Gerätes und der teilweisen
oder oberflächlichen Lektüre der in diesem Handbuch enthalte-
nen Informationen.
Die Seitenanzahl diese Handbuches ist: Nr. 92 Seiten
HINWEISE

INDICE
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5
6
22
38
54
70
86
88
DICHIARAZIONE DI CONFORMITÀ
DECLARATION OF CONFORMITY
DÉCLARATION DE CONFORMITÉ
KONFORMITÄTSERKLÄRUNG
DECLARACIÓN DE CONFORMIDAD
Trasporto • Simboli di sicurezza
Transport • Safety symbols
Transport • Symboles de sécurité
Transport • Sicherheitssymbole
Transporte • Símbolos de seguridad
Italiano
English
Français
Deutsche
Español
Dimensioni
Dimensions
Dimensions
Abmessungen
Dimensiones
Schema elettrico
Wiring diagrams
Schémas électriques
Schaltschemas
Esquemas eléctricos

Omnia UL N
Bevilacqua, 11/01/2010 La Direzione Commerciale – Sales and Marketing Director
Luigi Zucchi
AERMEC S.p.A.
I-37040 Bevilacqua (VR) Italia – Via Roma, 996
Tel. [phone]
Telefax ([phone] – ([phone]
www .aermec. com - info @aermec. com
DICHIARAZIONE DI CONFORMITÀ
Noi, firmatari della presente, dichiariamo sotto la nostra esclusiva re-
sponsabilità, che il prodotto:
VENTILCONVETTORE
serie Omnia UL N
al quale questa dichiarazione si riferisce è conforme alle seguenti norme
armonizzate:
- CEI EN 60335-2-40
- CEI EN 55014-1
- CEI EN 55014-2
- CEI EN 61000-6-1
- CEI EN 61000-6-2
- CEI EN 61000-6-3
- CEI EN 61000-6-4
soddisfando così i requisiti essenziali delle seguenti direttive:
- Direttiva LVD 2006/95/CE
- Direttiva compatibilità elettromagnetica EMC2004/108/CE
OMNIA UL N CON ACCESSORI
E’ fatto divieto di mettere in servizio il prodotto dotato di accessori non di
fornitura Aermec.
CONFORMITY DECLARATION
We the undersigned declare, under our own exclusive responsibility, that
the product:
FAN COIL
Omnia UL N series
to which this declaration refers, complies with the following standardised
regulations:
- EN 60335-2-40
- EN 55014-1
- EN 55014-2
- CEI EN 61000-6-1
- CEI EN 61000-6-2
- CEI EN 61000-6-3
- CEI EN 61000-6-4
thus meeting the essential requisites of the following directives:
- Directive LVD 2006/95/CE
- EMC Electromagnetic Compatibility Directive 2004/108/CE
OMNIA UL N WITH ACCESSORIES
It is not allowed to use the unit equipped with accessories not supplied
by Aermec.
CERTIFICAT DE CONFORMITÉ
Nous soussignés déclarons sous notre exclusive responsabilité que le pro-
duit:
VENTILO-CONVECTEURS
série Omnia UL N
auquel cette déclaration fait référence, est conforme aux normes har-
monisées suivantes:
- EN 60335-2-40
- EN 55014-1
- EN 55014-2
- CEI EN 61000-6-1
- CEI EN 61000-6-2
- CEI EN 61000-6-3
- CEI EN 61000-6-4
satisfaisant ainsi aux conditions essentielles des directives suivantes:
- Directive LVD 2006/95/CE
- Directive compatibilité électromagnétique EMC2004/108/CE
OMNIA UL N PLUS ACCESSOIRES
Il est interdit de faire fonctionner l'appareil avec des accessoires qui ne
sont pas fournis de Aermec.
KONFORMITÄTSERKLÄRUNG
Wir, die hier Unterzeichnenden, erklären auf unsere ausschließlich Ve-
rantwortung, dass das Produkt:
GEBLÄSEKONVEKTOR
der Serie Omnia UL N
auf das sich diese Erklärung bezieht, den folgenden harmonisierten Nor-
men entspricht:
- EN 60335-2-40
- EN 55014-1
- EN 55014-2
- CEI EN 61000-6-1
- CEI EN 61000-6-2
- CEI EN 61000-6-3
- CEI EN 61000-6-4
womit die grundlegenden Anforderungen folgender Richtlinien erfüllt wer-
den:
- Richtlinie LVD 2006/95/CE
- Richtlinie zur elektromagnetischen Verträglichkeit EMC2004/108/CE
OMNIA UL N + ZUBEHÖR
Falls das Gerät mit Zubehörteilen ausgerüstet wird, die nicht von
Aermec geliefert werden, ist dessen Inbetriebnahme solange untersagt.
DECLARACIÓN DE CONFORMIDAD
Los que suscriben la presente declaran bajo la propia y exclusiva
responsabilidad que el conjunto en objeto, definido como sigue:
FAN COIL
serie Omnia UL N
al que esta declaración se refiere, está en conformidad a las siguientes
normas armonizadas:
- EN 60335-2-40
- EN 55014-1
- EN 55014-2
- CEI EN 61000-6-1
- CEI EN 61000-6-2
- CEI EN 61000-6-3
- CEI EN 61000-6-4
- EN 61000-6-3
al que esta declaración se refiere, está en conformidad a las siguientes
normas armonizadas:
- Directiva LVD 2006/95/CE
- Directiva compatibilidad electromagnétic EMC2004/108/CE
OMNIA UL N CON ACCESORIOS
Está prohibido poner en marcha el producto con accesorios no
suministrados por Aermec.

6
35Kg
NON bagnare • Do NOT wet
CRAINT l’humidité • Vor Nässe schützen
NO mojar
NON lasciare gli imballi sciolti durante il trasporto.
Do NOT leave loose packages during transport.
ATTACHER les emballages pendant le transport.
Die Verpackungen nicht ungesichert transportieren.
NO lleve las cajas sueltas durante el transporte.
Sovrapponibilità: controllare sull’imballo la sovrapponibilità per conoscere il
numero di macchine impilabili.
Stacking: control the packing for the arrow position to know the number of
machines that can be stacked.
Superposabilité: contrôler sur l’emballage la superposabilité pour connaître le
nombre de machines empilables.
Stapelbarkeit: Auf der Verpackung kontrollieren, wie viele Maschinen gestapelt
werden können.
Posibilidad de superposición: controlar en el embalaje la posibilidad de superpo-
sición para saber cuántas máquinas se pueden apilar.
NON calpestare • Do NOT trample
NE PAS marcher sur cet emballage • Nicht betreten
NO pisar
NON trasportare la macchina da soli se il suo peso supera i 35 Kg.
DO NOT handle the machine alone if its weight is over 35 Kg.
NE PAS transporter tout seul l’appareil si son poids dépasse 35 Kg.
Das Gerät NICHT alleine tragen, wenn sein Gewicht 35 Kg überschreitet.
NO maneje los equipos en solitario si pesan más de 35 kg.
Pericolo: Pericolo: Pericolo!!!
Tensione Organi in movimento
Danger: Danger: Danger!!!
Power supply Movings parts
Danger: Danger: Danger!!!
Tension Organes en mouvement
Gefahr ! Gefahr ! Gefahr!!!
Spannung Rotierende Teile
Peligro: Peligro: Peligro!!!
Tensión Elementos en movimiento
TRASPORTO • CARRIAGE • TRANSPORT • TRANSPORT • TRANSPORTE
SIMBOLI DI SICUREZZA • SAFETY SYMBOL • SIMBOLES DE SECURITE
SICHERHEITSSYMBOLE • SÍMBOLOS DE SEGURIDAD

22 IULNIJ 1001 - 4528500_01
CONTENTS
Important information • Package
Maintenance • Troubleshooting
Control panel functions
Use
Visualisations for the user
Operation
Description • Technical data and operating limits
Correction factors for operation with glycol water
Main components • Description of components
Installation information
Unit installation • Coil rotation
Water connections
Condensate discharge connections
Connection for air delivery in an adjacent room
Electrical wirings
Connections to the electronic card • Network settings
Dip-switch settings • Filter installation and replacement
Dimensions
Wiring diagrams
Congratulations on your purchase of the Aermec OMNIA UL_N fan coil.
Made with materials of superior quality in strict compliance with safety regulations, "OMNIA UL_N" is easy to
use and will have a long life.
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86
88

23
IULNIJ 1001 - 4528500_01
The fan coils are shipped in stan-
dard package which consists of
expanded polystyrene foam and
cardboard shells.
PACKAGE
WARNING: OMNIA fan coils
are designed for indoor use.
WARNING: the fan coil is con-
nected to power supply and
water circuit. Operations per-
formed by persons without the
required technical skills can lead
to personal injury to the operator
or damage to the unit and sur-
rounding objects.
WARNING: components sensi-
tive to static electricity may be
destroyed by discharge notably
lower than those at the human
perception threshold. These dis-
charges form when you touch a
component or electric contact of
a unit, without first discharging
accumulated static electricity
from your body. The damage
caused to the unit by an overvolt-
age is not immediately evident - it
only appears after a certain peri-
od of operation.
STATIC ELECTRICITY ACCUMULATION
Any person not connected in a con-
ductive manner with the electronic
potential of his surrounding envi-
ronment can accumulate electro-
static charges.
STANDARD PROTECTION AGAINST
ELECTROSTATIC CHARGES
Earthing quality
When working with units sensi-
tive to electrostatic electricity,
ensure that people, workplaces
and unit casings are correctly
earthed. This will prevent the for-
mation of electrostatic charges.
Avoid direct contact
Only touch the element exposed
to electrostatic risk when abso-
lutely essential (e.g. for mainte-
nance).
Touch the element without com-
ing into contact with either the
contact pins or the wire guides. If
you follow this rule, the energy
of the electrostatic charges can-
not reach or damage the sensitive
parts.
Before taking measurements on the
unit, it is necessary to discharge
all electrostatic charges from your
body: to do this, just touch an
earthed metal object. Only use
earthed measuring instruments.
POWER THE FAN COIL ONLY WITH
230V, SINGLE-PHASE VOLTAGE
Any other type of power supply could
permanently damage the fan coil.
DO NOT USE THE FAN COIL
IMPROPERLY
Do not use the fan coil for ani-
mal husbandry applications (e.g.
incubation).
AIR THE ROOM
Periodically air the room in which
the fan coil has been installed. This
is particularly important if the room
is occupied by many people, or if
gas appliances or sources of odours
are present.
ADJUST TEMPERATURE ADEQUATELY
The room temperature should be
adjusted in order to provide maxi-
mum comfort to the people in the
room, especially if they are elderly,
children or sick people; avoid dif-
ferences over 7°C between the out-
door temperature and the tempera-
ture inside the room in summer.
In summer, a temperature that is too
low causes higher electrical con-
sumption.
CORRECTLY ADJUST THE AIR JET
Air coming out from the fan coil
must not reach people directly; in
fact, even if the air is warmer than
the room temperature, it could
cause a cold sensation and result
in discomfort.
DURING OPERATION
Always leave the filter fitted on
the fan coil during operation
(otherwise dust in the air could
soil the coil surface area).
WHAT IS NORMAL
In the cooling operation, water
vapour may be present in the air
delivery of the fan coil.
In the heating operation, a slight
hiss might be heard close to the
fan coil. Sometimes the fan coil
might give off unpleasant smells
due to the accumulation of sub-
stances present in the air of the
room (clean the filter more often,
especially if the room is not venti-
lated regularly).
While the unit is functioning, there
could be noises and creaks inside
the device due to the various ther-
mal expansions of the elements
(plastic and metal), but this does
not indicate any malfunction and
does not damage the unit unless
the maximum input water temper-
ature is exceeded.
MALFUNCTIONING
In the event of a malfunction, cut
off power supply to the unit, then
restore the power and start the
unit again. If the problem occurs
again, call the local After-Sales
Service immediately.
DO NOT TUG THE ELECTRIC CABLE
It is very dangerous to pull,
tread on or crush the electric
power cable, or fix it with nails or
drawing pins.
A damaged power cable can
cause short circuits and injure
people.
DO NOT OBSTRUCT THE AIR
OUTLETS BY PLACING
OBJECTS INTO THEM
Do not put anything in the air out-
let slots.
This could injure people and dam-
age the fan.
IMPORTANT INFORMATION

24 IULNIJ 1001 - 4528500_01
ROUTINE MAINTENANCE
Routine maintenance can be carried
out by the user: it involves a series
of simple operations, thanks to
which the fan coil can operate at
its maximum efficiency level.
Interventions:
- External cleaning, weekly to be
carried out with a moist cloth
and neutral soap; do not use
other detergents and solvents of
any type.
- cleaning the electrostatically pre-
charged filter, every two weeks
or weekly if the installation is in a
very dusty environment, remove
the dust that has accumulated
with a vacuuming device, wash-
ing with running water and neu-
tral soap is allowed but it speeds
up the deterioration of the elec-
trostatic precharge; do not use
other detergents and solvents of
any type.
- Replacement of the electrostati-
cally precharged filter every
two years. Failure to make this
replacement in the time speci-
fied means the end of the filter-
ing of the microdusts because
the electrostatic precharge has
run out; the filtering capacity
will be compared with that of a
normal filter.
- Visual inspection of the state of the
fan coil for every maintenance
operation; every fault must be
communicated to the After Sales
Service department.
EXTRAORDINARY MAINTENANCE
Extraordinary maintenance can
only be performed by Aermec
After-Sales Services or by people
with the technical and profes-
sional requisites qualifying them
to undertake installation, conver-
sion, expansion and maintenance
of the systems and are able to
check them in terms of safety and
functionality, in particular with
regard to electrical connections
the following tests are required
relative to:
- Measurement of the electrical sys-
tem insulation resistance;
- Continuity of the protection wires.
Extraordinary maintenance consists
of a set of complex operations that
involve the dismantling of the fan
coil or its components, resulting
in the restoration of the fan coil's
functioning at maximum efficiency.
Interventions:
- Internal cleaning, annually or
before shutting down for long
periods; cleaning can be more
frequent in environments where
a high degree of air cleaning is
required; it consists of cleaning
the coil, the removable volute,
the fan fins, the basin and all
the parts in contact with the
treated air.
- Repairs and fine tuning: if you
notice anomalies, consult the
“TROUBLESHOOTING" chapter
of this manual before contacting
the After Sales Service.
MAINTENANCE
PROBLEM
Insufficient air
flow at outlet
Unit does not heat
Unit does not cool
Fan not turning
Condensation forming
on the external case of
the unit
PROBABLE CAUSE
Incorrect speed setting on control panel
Blocked filter
Obstructed air flow (inlet and/or outlet)
No hot water
Incorrect control panel setting
No cold water
Incorrect control panel setting
No electrical power
Water has not reached operating temperature.
Temperature and humidity limits specified by
“MINIMUM AVERAGE WATER TEMPERATURE”
have been reached
SOLUTION
Select the correct speed on the control
panel
Clean the filter
Remove the obstacle
Check the boiler
Set the control panel
Check the chiller
Set the control panel
Check that there is electrical power
Check heater or chiller.
Check thermostat setting
Raise the water temperature above the
limits specified by “MINIMUM AVER-
AGE WATER TEMPERATURE”
For any problems not listed, contact the After Sales Service immediately.
TROUBLESHOOTING

25
IULNIJ 1001 - 4528500_01
20°C
12°C 28°C
CD CD
25°C
33°C17°C
12°C
12°C 12°C
CD
20°C
12°C 28°C
CD CD
22°C
30°C14°C
12°C
12°C 12°C
CD
+
-
AUX
–(A) Ventilation speed selector:
• OFF The anti-freeze function
is active
• AUTO Automatic ventilation
mode
• Manual ventilation speed
selection
V1 = Minimum speed
V2 = Average speed
V3 = Maximum speed
• AUX Minimum speed
Special accessories enabling,
consult the relative manuals.
CONTROL PANEL FUNCTIONS
FROST PROTECTION
HEATING COOLING
FROST PROTECTION:
HEATING COOLING
Temperature
standard
configuration
(dead band 5°C)
Temperature
optional
configuration
(dead band 2°C)
(A)
(B)
(D)
(C)
–(D) Ventilation request
indicator light
YELLOW
–(B)Temperature selector
– (C) Operation mode
indicator light
RED - BLUE - FUCHSIA
Ventilation is only allowed with the
fin open; it must be manually opened.
The closure of the fin causes venti-
lation to switch off.
To access the control panel, lift the
protection flap.
Closing the master fan coil fin, the
electronic thermostat card and the
other fan coils in the network will
carry on working.

26 IULNIJ 1001 - 4528500_01
USE
Starting
- To start up the fan coil, turn the knob and choose a ventilation speed.
- To switch off the fan coil, turn the knob to the
OFF
position.
-
OFF
The fan coil is switched off.
In the OFF condition, the thermostat carries on working.
If the room temperature falls below 7°C, and the system conditions allow it,
the thermostat will activate ventilation (anti-freeze function).
Selecting the ventilation speed
-
AUTO
The thermostat maintains the set temperature by automatically changing the
ventilation speed on the basis of the room temperature and the set temperature.
- The thermostat maintains the set temperature by means of ON-OFF cycles, using the
minimum fan speed.
- The thermostat maintains the set temperature by means of ON-OFF cycles, using the
average fan speed.
- The thermostat maintains the set temperature by means of ON-OFF cycles, using the
maximum fan speed.
Selecting the temperature
- To increase the room temperature, turn the knob to the right (+).
- To reduce the room temperature, turn the knob to the left (-).
The temperatures are not indicated on the panel because, on one single knob position, the
value changes in line with the operating mode (Heating, Cooling or Anti-freeze).
The maximum and minimum temperature differences compared with the central position are +8°C
and -8°C; only with the anti-freeze function is the set temperature fixed throughout the field.
The temperature with the selector set in the central position is:
• Heating 20°C
• Cooling 25°C (standard configuration with dead band 5°C)
• Anti-freeze: the minimum room temperature is 7°C in all selector positions (the 12°C set
activates automatically)
Season changeover
Water side changeover: the thermostat automatically sets Heating or Cooling operation according to the tempera-
ture of the water in the system.
Air side changeover: for special settings, the season change function can be set by operating the temperature selector.
AUX

27
IULNIJ 1001 - 4528500_01
LED Cindicates the active operating mode:
RED - Heating
- Quick flashing indicates that the Anti-freeze (Frost Protection) function is active
RED + FUCHSIA - Heating. The alternate flashing colours indicate the absence of suitable
conditions for enabling ventilation (unsuitable water temperature, or
closed fin on versions with motorised fin).
BLUE - Cooling
BLUE + FUCHSIA - Cooling. The alternate flashing colours indicate the absence of suitable
conditions for enabling ventilation (unsuitable water temperature, or
closed fin on versions with motorised fin).
INDICATOR LIGHTS FORTHE USER (STANDARD CONFIGURATION)
LED Dindicates a ventilation request:
YELLOW - (ON) The ambient conditions require the use of the fan (when the speed
selector is on AUTO, V1, V2, V3)
- (OFF) The ambient conditions do not require the use of the fan, or the
selector is in the OFF (standby) position, or the fin is closed
- (slow flashing) Operation mode managed by the centralised system. The
fan selector on the panel is automatically blocked.
- (quick flashing) Indicates an ambient probe fault
(contact the After Sales Service)
Special visualisations following particular operating conditions:
(these visualisations can be interpreted by the After Sales Service)
BLUE + YELLOW - Slow flashing of the BLUE LED (C) and the YELLOW LED (D).
Addressing procedure in progress. Turn the ventilation speed selector knob
to activate the automatic procedure to assign the address to the unit.
The thermostat functions are temporarily disabled.
FUCHSIA + BLUE + RED Visualisation of the unit's serial address
- The number of flashes of the FUCHSIA LED indicates the units.
- The number of flashes of the BLUE LED indicates the tens.
- The number of flashes of the RED LED indicates the hundreds.
FUCHSIA + YELLOW- Slow contemporary flashing of the YELLOW LED and the FUCHSIA LED
indicates the absence of communication between the control panel and the
thermostat.
SET POINT - AN EXAMPLE OF A SETTING
D
C
AUX
Set Point

28 IULNIJ 1001 - 4528500_01
OPERATION
The OMNIA UL_N fan coil concentrates
hi-tech and highly functional features
that make it the ideal means of climate
control in every room.
OMNIA fan coils are designed for
indoor use.
The supply of climate-controlled air is
immediate and distributed throughout
the room. OMNIA UL_N generates
heat if inserted in a heating system with
boiler or heat pump, but it can also be
used in summer as an air conditioner if
the heating system has a water chiller.
The quality of the treated air is guar-
anteed by a special, electrostatically
pre-charged filter which absorbs and
holds back the suspended dust par-
ticles. With the fan coil switched off,
the closed fin prevents any dust or for-
eign bodies from entering.
The removable drip tray and fan volute
ensure thorough cleaning of the unit
(by specifically trained personnel),
essential for installations in venues sub-
ject to crowding or in those with spe-
cial hygiene requirements.
The quietness of the new centrifugal
fan assembly is such that at normal
speeds of use you cannot hear when
the OMNIA UL_N cuts in. The use of
the electronic control panel avoids the
annoying noise typical of mechanical
thermostats.
The control panel is protected by a flap
on the head.
OMNIA UL_N is equipped with an elec-
tronic control panel with microproces-
sor. It's extremely intuitive and user-
friendly, with just two knobs - one to
increase or decrease the temperature,
and the other to switch on/off and set
the ventilation speed.
The settings made on the control panel
can be transmitted (without additional
interfaces) to a network with up to
5 fan coils, all equipped with their
own electronic card. The fan coils in
the network will each adapt their own
operation to the environmental condi-
tions detected in that specific room.
The OMNIA UL_N fan coil has been
designed to meet all system require-
ments, thanks also to its wide range of
accessories.
Easy installation with reversible hydraulic
connections during installation.
Full compliance with accident preven-
tion regulations.
Routine maintenance is reduced to
periodic air filter cleaning with a
vacuum cleaner.
• Type of system
The OMNIA UL_N fan coils are
designed for 2-pipe systems and are
configured:
- without valve;
- with 2-way valve or water probe
downstream from the valve;
- with 3-way valve and water probe
downstream from the valve;
• Operation in TTL network
The OMNIA UL_N “master” is fitted
with an electronic card with micropro-
cessor, able to manage a network of
a further 5 fan coils over a maximum
network length of 30 metres. The set-
tings (or set points) of the panel on the
main fan coil (master) are received by
the other fan coils (slaves) which will
operate autonomously.
The OMNIA UL fan coil with slave
function must be fitted with the elec-
tronic card with microprocessor VMF-
E0 or VMF-E1 (an accessory).
All the fan coils of the TTL network must
have the same type of configuration.
Example: all standard, all with puri-
fiers (Plasmacluster and/or germicidal
lamps), or all with an additional coil
(electric or with water).
The slave fan coils work with the set-
tings dictated by the master fan coil.
On the basis of the settings received
from the network and the ambient
conditions detected by the probes, the
electronic card on each single slave
fan coil acts (independently from the
other fan coils) to switch the ventila-
tion on and off in order to create the
conditions requested by the user for
that specific room.
• Cooling operation
Cooling operation requires a water cir-
cuit with chiller.
• Heating operation
Heating operation requires a water cir-
cuit with boiler, heat pump or solar
system.
• Changeover (seasonal change)
The thermostat automatically selects the
operating mode (Heating/Cooling), if
that mode is permitted (water probe
and settings).
- Normal band: heating at 39°C; cool-
ing at 17°C.
- Reduced band: heating at 35°C; cool-
ing at 22°C.
- Dead band: can be selected at 5°C or 2°C.
Water side changeover
- Water temperature checks
Enabling of water side ventilation (only
active with water temperature probe).
The thermostat identifies the ventilation
enabling threshold in Heating mode
(minimum controlled) and Cooling
mode (maximum controlled); with the
dip-switches it is possible to choose
between two temperature bands.
Air side changeover
If the actual room temperature is lower
than the set point by a value equal to
the dead band, there is an automatic
swap to Heating operation.
If the actual room temperature is higher
than the set point by a value equal to
the dead band, there is an automatic
swap to Cooling operation.
In the fan coil networks, the values of
the dead band are only those config-
ured on the master fan coil
• Pause due to power failure
After a power failure, the unit restarts
with the settings that were active prior
to the pause.
• Delayed start-up
The unit can begin ventilation some
time after start-up - usually up to 2’40”
(pre-heating function).
• Anti-freeze protection
Commands on OFF position. The fan
coil can restart in heating mode (set-
ting 12°C) if the room temperature
falls below 7°C and the temperature of
the water in the system is suitable.
In the fan coil networks, the slave fan
coils can activate the anti-freeze pro-
tection regardless of the settings on the
master fan coil.
If the anti-freeze protection is active on
the master fan coil, all the other slave fan
coils will also adopt a setting of 12°C,
regardless of their ambient conditions.
• Room temperature probe
If the room temperature probe on the
slave fan coils is faulty, the tempera-
ture will be measured by the probe of
the master.
•Ventilation
3-speed ventilation can be commanded
both manually and automatically.
- Manual, with the selector on V1, V2
and V3. The fan is used with ON-OFF
cycles at the selected speed.
- Automatic, with the selector on
AUTO. The fan speed is managed by
the thermostat, on the basis of the
ambient conditions and the fan coil
configuration.
Thermostat settings:
- 3-level thermostat, with the selector
on AUTO. The fan maintains the speed
relating to one of the three predeter-
mined steps, depending on the differ-
ence between room temperature and
set point. Once it has reached the set
point, the fan will switch off.
Description of the UL_N fan coil functions

29
IULNIJ 1001 - 4528500_01
- Modulated output thermostat, with
the selector on AUTO. The fan makes
cycles, alternating the speeds according
to the difference between room temper-
ature and set point. Once it has reached
the set point, the fan will switch off. This
setting is not compatible with continu-
ous ventilation management.
• Ventilation management
Ventilation settings:
- Continuous ventilation. Ventilation
is always active. The temperature is
controlled by intercepting the flow
of water to the fan coil. This function
requires the presence of a water valve
(accessory), and cannot be activated
simultaneously with the "modulated
output thermostat" option.
- Thermostat-controlled ventilation.
Ventilation switches off when the set
temperature is reached (set point).
• Valve adjustment logics
With the Thermostat-controlled ventila-
tion or Modulated output thermostat
setting, the valve is managed with the
following logics:
- Heating - the valve is managed to
exploit the stack effect of the fan coil,
and to provide heat even with the
fan switched off. These settings also
reduce the number of valve openings
and closings; with hot water circulat-
ing in the fan coil, a request from the
thermostat will produce ventilation
immediately.
- Cooling - to make the best use of the
unit's cooling capacity and perform a
more accurate check on the room tem-
perature, the valve opening does not
coincide with ventilation.
• Water probe
There is a water temperature probe in
the heat exchanger of the unit.
The slave fan coil can work without the
water probe: if it is absent or faulty,
the temperature will be measured by
the master probe along. In this case,
ventilation is always enabled on the
slave fan coil.
The water temperature probe can be
positioned downstream or upstream
from the shutoff valve, so also the dip-
switches on the card must be set. The
difference lies in the management of the
ventilation of the fan coils with valve.
Setting the dip-switch as a probe down-
stream of the valve, ventilation start-
up (changeover) is dependent on the
temperature of the air in the room.
Setting the dip-switch as a probe
upstream of the valve, ventilation start-
up is dependent on the temperature
of the water in the system. With this
setting, the pre-heating function is acti-
vated, and there is a ventilation start-up
delay of between 0” and 2’40”.
To position the bulb on the delivery
pipe upstream of the valve, the stan-
dard water probe must be replaced
with the SW3N probe accessory.
• External contact
The card offers the possibility of a con-
nection with an external contact. With
a closed external contact, the unit is
configured as in the thermostat OFF
position (except when the thermostat
is in the Anti-freeze Protection position
or when the ambient probe is absent
or faulty). This contact can be used
to manage inputs such as a remote
ON-OFF command, a presence sen-
sor, a window contact, a faulty circula-
tion pump signal, etc.
In fan coil networks, only the exter-
nal contact of the master fan coil is
enabled. If the master input is closed,
all the slave fan coils of the network
are switched off.
• Microswitch contact
The card offers the possibility of a con-
nection with the Microswitch contact
located on the delivery fins. With the
fins closed, the fan coil is 100% OFF.
In fan coil networks, when the fin of
the master fan coil is closed, ventila-
tion stops but the electronic thermostat
card and the other fan coils in the net-
work carry on working.
• Emergency operation
In the event of a faulty probe, the elec-
tronic card can automatically detect the
problem and enable an emergency pro-
gram to avoid any inconvenience for
the user, who is immediately informed
of the fault (LED indicator lights).
• Ambient probe correction
To obtain a better room temperature
adjustment, the thermostat applies
special algorithms to correct the ambi-
ent probe installed on the fan coil; the
probe is in contact with the housing,
and is therefore influenced by it.
The dynamic correction is a correction
algorithm of the ambient probe which
takes into account the particular oper-
ation status of the fan coil in any one
moment. More precisely, there are two
possible cases of dynamic correction:
- Dynamic correction A: in the case
of systems without a valve (or with
a downstream probe), the correction
depends on the water and ambient
temperatures.
- Dynamic correction B: in the case of
systems with a valve and an upstream
probe, the correction depends on the
valve and on the water and ambient
temperatures. Unlike the previous cor-
rection, this one uses different time
constants to calculate the appropri-
ate correction (because the housing is
influenced in a different way).
Upstream water probe Downstream water probe
Water probe present Water probe not fitted Water probe present Water probe not fitted
With valve
Water side changeover Air side changeover Air side changeover Air side changeover
Pre-heating delay Pre-heating delay No ventilation delay Pre-heating delay
Minimum and maximum
controls active
No minimum and maximum
control
Minimum and maximum
controls active
No minimum and maximum
control
- Dynamic correction A: Fixed correction - Dynamic correction B: Fixed correction
Without valve Configuration not used
Water side changeover Air side changeover
No ventilation delay No ventilation delay
Minimum and maximum
controls active
No minimum and maximum
control
- Dynamic correction B: Fixed correction

30 IULNIJ 1001 - 4528500_01
If the fan coil is working in continuous
cooling mode in an environment
where the relative humidity is high,
condensate might form on the air
delivery and on the outside of the
device. This condensate might be
deposited on any objects underneath
and on the floor.
To avoid condensate on the external
structure of the device while the fan is
functioning, the average temperature of
the water must not be lower than the
limits shown in the table below, that
depend on the thermo-hygrometric con-
ditions of the air in the room.
These limits refer to unit operating with
fan at minimum speed.
TECHNICAL DATA AND OPERATING LIMITS
Performance values refer to the following conditions:
- at the maximum motor speed;
- the total input power is determined by adding the input power
for the unit and the input power for the accessories connected
and declared in the corresponding manuals.
AIM OF THE UNIT
The fan coil is a room air treatment terminal unit for both winter and summer operation.
Omnia UL_N version
A fan coil with cabinet, for universal installation and fitted with a multifunction electronic thermostat. It can be installed as an
autonomous unit or within a network: it can, in fact, manage a network of a further 5 fan coils*.
* The fan coils within a network must be pre-arranged models, or equipped with the special accessories.
DESCRIPTION OF THE UNIT
AVAILABLE SIZES
The Omnia UL_N fan coils are available in 4 sizes.
Omnia UL 11 N 16 N 26 N 36 N
[W] 2010 2910 4620 5940
[W] 840 1200 2030 2830
[W] 18 32 35 42
[A] 0.09 0.15 0.18 0.22
[°C] 80 80 80 80
[bar] 8 8 8 8
0°C < Ta < 40°C
R.H. < 85%
IP 20
[V ~ Hz] 230V ( ±10%) ~ 50Hz
Heating output (water input 70°C)
Cooling output (water input 7°C)
Input power
Input current
Maximum water inlet temperature
Maximum operating pressure
Room temperature limits Ta
Relative humidity limits in the room R.H.
Protection rating
Power supply
Water temperature
In order to prevent air stratification in the
room, and therefore to achieve improved
mixing, it is advisable not to supply the fan
coil with water at a temperature over 65°C.
The use of water at high temperatures
could cause squeaking due to the different
thermal expansions of the elements
(plastic and metal), this does not however
cause damage to the unit if the maximum
operating temperature is not exceeded.
Minimum average water temperature
Minimum average water temperature [°C] Temperature of the air in the room with dry bulb
21 23 25 27 29 31
Temperature with wet bulb
of the air in the room
15 333333
17 333333
19 333333
21 654333
23 -87655

31
IULNIJ 1001 - 4528500_01
0,8
0,9
1,0
1,1
1,2
6 7 8 9 10 11 12 13 14 15 16 17 °C
0,6
0,7
0,8
0,9
1,0
1,1
1,2
6 7 8 9 10 11 12 13 14 15 16 17 °C
0,5
0,6
0,7
0,8
0,9
1,0
1,1
1,2
1,3
1,4
1,5
1,6
6 7 8 9 10 11 12 13 14 15 16 17 18 °C
30 40 50 60 70 80 90 °C
0,8
0,9
1,0
1,1
1,2
1,3
1,4
0,8
0,9
1,0
1,1
1,2
1,3
1,4
30 40 50 60 70 80 90 °C
0,8
0,9
1,0
1,1
1,2
1,3
1,4
30 40 50 60 70 80 90 °C
Medium glycol water temperature
Correction factor
Pressure drops
Air flow rate
Output
GLYCOL WATER AT 10%
GLYCOL WATER AT 35%
GLYCOL WATER AT 20%
CORRECTION FACTORS WHEN OPERATING USING GLYCOL WATER
COOLING FUNCTION MODE HEATING FUNCTION MODE
Medium glycol water temperature
Correction factor
Medium glycol water temperature
Correction factor
Medium glycol water temperature
Correction factor
Medium glycol water temperature
Correction factor
Medium glycol water temperature
Correction factor
Key:

32 IULNIJ 1001 - 4528500_01
OMNIA UL_N
1Control panel (UL N)
2Electronic card
3Cabinet
4Feet (accessory ZU)
5Load-bearing structure
6Air filter
7Fan motor
8Fan
9Basin
10Heat exchange coil
11Head with adjustable fins
11 1
7
6
3
2
9
8
10
MAIN COMPONENTS
CONTROL PANEL
The control panel is housed in the head of
the fan coil, protected by an access flap.
ELECTRONIC THERMOSTAT
OMNIA UL_N is equipped with an
electronic control panel with micro-
processor. It's extremely intuitive and
user-friendly, with just two knobs - one
to increase or decrease the tempera-
ture, and the other to switch on/off
and set the predefined (or automatic)
ventilation speeds.
The response to commands may be
delayed (heat exchanger pre-heating).
THERMOSTAT ELECTRONIC CARD
The box containing the thermostat elec-
tronic card is fixed to the side of the
fan coil.
The electronic card has a dip-switch
for configuration, and connectors for
making the connection with:
- the power supply,
- the earthing,
- the control panel (user interface),
- the fan motor command,
- the valve command,
- the room temperature probe,
- the water temperature probe,
- the fan coil network,
- the external contact,
- the MS external contact.
HEAT EXCHANGE COIL
2-row coil with copper pipe and alu-
minium fins, held in place by means
of the mechanical expansion of the
pipes. The collectors are fitted with
female connections and air vents in
the upper part of the coil. The coil can
be rotated on the worksite.
CABINET
Casing in RAL9002
The casing is made of galvanised steel, var-
nished with polyester powders to guaran-
tee high resistance to rust and corrosion.
The feet (accessory) are in plastic,
colour RAL7044.
• ELECTROSTATICALLY PRECHARGED
AIR FILTER
Fire resistance Class 2 (UL 900).
Easily extractible, it is supplied with the
fan coil in a sealed box which should
be opened only upon use. The electro-
statically pre-charged filter combines
the normal mechanical filtering of the
air that passes through the filter, with
an electrostatic attraction of powder
that increases its filtering considerably.
ELECTRIC FAN ASSEMBLY
Applied directly to the frame, it consists
of extremely quiet, compact, double
suction centrifugal fans. The electri-
cal motor, protected against overload-
ing, has three speeds with the running
capacitor always on, directly coupled
with the fans and cushioned with flex-
ible supports. The fan shrouds can be
inspected (an operation that can only
be carried out by personnel with the
specific technical skills), which also
means the inner parts can be accu-
rately cleaned.
LOAD-BEARING STRUCTURE
Made of sheet metal of an adequate
thickness, and galvanised to protect
against oxidation. Equipped with
closed cell thermal insulation with
Class 1 fire resistance.
Holes in the back for wall mounting.
Each device is equipped with a con-
densate collection tray that can be
removed for cleaning (this operation
can only be carried out by personnel
with the specific technical skills).
CONDENSATE DISCHARGE
Every device is fitted with a tray for col-
lecting condensation, with a connec-
tion for draining condensation pro-
duced by the unit in cooling mode.
WATER CONNECTIONS
The connections, located on the left
hand side, are female. The possibility
exists for rotating the battery on the
construction site. \.
HEAD WITH ADJUSTABLE FINS
Colour RAL7044
With the deflector fin fully closed, the
tripping of the microswitch stops ven-
tilation thereby interrupting any further
heat exchange with the environment.
The control panel is also housed in the
head, and is protected by a flap.
DESCRIPTION OF COMPONENTS
4
5

33
IULNIJ 1001 - 4528500_01
SA
AIR
SA
AIR
SWSW VCH
SA
AIR
SW VCH
0,3 0,5 0,7 1,0 2,0
0
0
10
20
30
40
50
WARNING: OMNIA fan coils
are designed for indoor use.
WARNING: check that the power
supply is disconnected before carrying
out any procedures on the unit.
WARNING: before carrying out
any work, put the proper individual
protection equipment on.
WARNING: the device must be
installed in compliance with national
plant engineering rules.
WARNING: the electrical
connections, plus the installation of
fan coils and relevant accessories,
should only be performed by a
technician with the necessary
technical and professional expertise to
install, modify, extend and maintain
systems, and who is able to check the
systems for purposes of safety and
correct operation (in this manual such
technicians will be indicated with the
general term "personnel with specific
technical skills").
In the specific case of electrical wirings,
the following must be checked:
- measurement of the electrical system
insulation strength.
- continuity of the protection wires
WARNING: Install a device, main
switch, or electric plug so you can
fully disconnect the device from the
power supply.
The essential indications to install the
device correctly are given here.
The installer's experience will be
necessary however, to perfect all the
operations in accordance with the
specific requirements.
The water, condensate discharge
and electrical circuit ducts must be
provided for.
The fan coil should be installed in such
a way as to facilitate routine (filter
cleaning) and special maintenance
operations, as well as access to the
air drain valve on the side of the unit
frame (connections side).
Do not install the unit in rooms where
there are inflammable gases or
acid/alkaline substances which can
provoke irreparable damage to the
copper-aluminium heat exchangers or
internal plastic components.
Do not install the unit in workshops
or kitchens, where oil vapours mixed
with the treated air can be deposited
on the exchange coils (reducing their
effectiveness) or on the internal parts
of the unit (damaging the plastic
components).
The fan coil must be installed in such a
position that the air can be distributed
throughout the room and so that there
are no obstacles (curtains or objects)
to the passage of the air from the
suction louvers.
you are advised not to install the
fan coil above objects that suffer
from damp or wet because in some
conditions condensation may form on
the external frame of the equipment
with the possibility of dripping or
failures may occur in the hydraulic
system and condensate drainage with
the consequent spilling of liquid.
The assembly site must be chosen in
such a way that the maximum and
minimum ambient temperature limits
are respected 0-45°C (<85% R.H.).
INSTALLATION
SYSTEM EXAMPLES
SW Water temperature sensor
VCH Solenoid valve (Heating / Cooling)
SA Room temperature sensor
Key:
Particle diameter [µm]
Fractional efficiency [%]
= Aermec UL range filter
= Standard filter for fan coils
ELECTROSTATICALLY PRECHARGED AIR FILTER

34 IULNIJ 1001 - 4528500_01
- Loosen the screws to remove the housing.
- With wall-mounted units, keep a
minimum clearance of 80mm from
the floor. With floor-standing units on
feet, refer to the instructions supplied
with the accessory.
-The supporting wall must be perfectly
flat. For fixing, use 4 wall plugs (not
supplied) with suitable characteristics
for the specific type of wall.
- Apply any accessories.
- To modify the settings of the
electronic thermostat, adjust the dip-
switches from the special inspection
window in the box on the side (see
“DIP-SWITCH SETTINGS”).
- Make all the connections.
- Reassemble the casing.
- Make sure the fan coil is working properly.
- Assemble the air filter. It is supplied in
a sealed box, to be opened only at the
time of use.
UNIT INSTALLATION
UL_N
ceiling installation
INSTALLATION EXAMPLES
UL_N
wall-mounted installation with feet (ZU)
UL_N
wall-mounted installation
If the hydraulic connections require
the rotation of the coil, remove the
cabinet and ambient probe then
proceed as follows:
–remove the electrical connections
from the terminal strip;
–remove the probe from the coil;
–remove the screws fixing the basin
and remove it;
–remove the screws securing the coil,
then remove the coil;
–remove the push-outs on the right-
hand side;
–rotate the coil and secure it with the
previously removed screws;
–reassemble the tray, fixing it with the
screws. All the trays are suitable for
condensate drainage on both sides;
NB: before connecting the condensate
discharge, use a tool to knock out the
diaphragm of the tray on the water
connections side.
–position the polyethylene cap of the
condensate discharge onto the left-
hand side;
–remove the electric motor cable from
the right-hand side;
–remove the rectangular push-out from
the left-hand side;
–recover the cable grommet and insert it
in the left-hand side before closing the
right-hand hole with adhesive tape;
–move the electric motor cable onto
the left-hand side, passing it through
the cable grommet and arranging it so
it reaches the connector on the side;
–move the control panel from the right
to the left of the head (the hole must be
closed with the recovered plastic baffle);
–unravel the twists and turns of the
microswitch cable for the length
necessary to reach the control board
on the left-hand side;
–fasten the microswitch cable to the
cable clamps;
–restore the electrical wirings between
the control panel and control board.
COIL ROTATION

35
IULNIJ 1001 - 4528500_01
-Make the water connections. To help
the bleeding of air from the coil, you
are advised to connect the water
outlet pipe to the fitting at the top;
any inversion will not jeopardise the
proper functioning of the unit.
The position and diameter of the
water connections are shown in the
dimensions.
You are advised to adequately
insulate water lines, or fit the auxiliary
condensate drain tray (available as an
accessory), to prevent dripping during
the cooling function.
Test the seal on the water
connections.
During cooling operation the indoor
unit removes humidity from the air. The
condensate water must be eliminated
by connecting the appropriate
discharge coupling to the piping of the
condensate discharge system.
NB: Before connecting the condensate
discharge, use a tool to knock out the
diaphragm of the tray on the water
connections side.
Seal the unused drainage hole.
The condensate drain network must
be properly scaled and the piping
situated in such a way as to keep
an adequate slope along the route
(min. 1%). If condensate is discharged
into the sewage system, install a
siphon to prevent the return of
unpleasant odours into the room.
Test the condensate discharge seal.
The water, condensate discharge and electrical circuit ducts must be provided for.
CONNECTIONS
CONDENSATE DISCHARGE CONNECTION
CONNECTIONS
OUT = Water outlet coil connection
IN = Water inlet coil connection
AIR = Coil air drain valve
D= Coil drainage valve
SC = Condensate discharge (male Ø 16mm)
WATER CONNECTIONS
WARNING: check that the power
supply is disconnected before carrying
out any procedures on the unit.
In the specific case of electrical wirings,
the following must be checked:
- Measurement of the electrical system
insulation strength
- Continuity of the protection wires
-The electrical wirings must be made in
compliance with the wiring diagrams
The unit must be connected directly
to an electrical outlet or to an
independent circuit.
OMNIA fan coils are powered with a
current of 230V ~ 50Hz with an earth
connection, but the line voltage must
remain within the tolerance value of
±10% compared with the nominal value.
The electrical power cable must be of
the H07 V-K or N07 V-K type with
450/750V insulation if inside a tube
or raceway. Use cables with double
H5vv-F type insulation for visible
cable installation. All the cables
must be piped or ducted until they
are inside the fan coil. The cables
leaving the pipe or raceway must be
positioned in such a way that there
are not traction or twisting stresses
and they are anyway protected from
outside agents.
Stranded cables can only be used with
crimping terminals. Check the wire
strands are well inserted.
The wiring diagrams are subject to
continuous updates, so it is essential
to use those on the machine as your
reference.
For all the connections, follow the wiring
diagrams supplied with the device and
shown in this documentation.
In installations with a 3-way valve, the
minimum water temperature sensor
must be relocated from its standard
mounting in the coil assembly to the
delivery hose upstream of the valve.
If you need to relocate the water
temperature probe, the standard probe
must be replaced with an SW3N
accessory probe, fitted with a cable of
suitable length.
The connections must be made with the
connectors on the electronic card on
the side of the fan coil (protected by a
plastic box).
WARNING: the diagram showing
the connections of the electronic card
to the control board is printed inside
its box cover.
- Connect the power cables.
- Connect the earth cable.
- Connect the electric cables of the
valve accessory (if installed).
- Connect the network cables (if
connected to a network).
- Connect the cables for an external
contact (if envisaged).
- Check all the connections and relative
cables are well fixed.
ELECTRICAL WIRINGS
AIR
SC
D
OMNIA Coil connections
Omnia UL 11 N 16 N 26 N 36 N
Ø 1/2” 1/2” 1/2” 1/2”

36 IULNIJ 1001 - 4528500_01
L - N = Power supply
230V AC - 50Hz
Screw clamps
Minimum cable section = 0.5mm2
Maximum cable section = 2.0mm2
= EARTH connection
Screw clamp
Minimum cable section = 0.5mm2
Maximum cable section = 2.0mm2
Y1 = VC/VF command
Faston-type connector
Y2 = Accessory command
Faston-type connector
N = Neutral
Faston-type connector
Minimum cable section = 0.5mm2
V3 = Motor command
Maximum speed
Faston-type connector
Minimum cable section = 0.5mm2
Maximum cable section = 2.0mm2
V2 = Motor command
Average speed
Faston-type connector
Minimum cable section = 0.5mm2
Maximum cable section = 2.0mm2
V1 = Motor command
Minimum speed
Faston-type connector
Minimum cable section = 0.5mm2
Maximum cable section = 2.0mm2
FUSE = Protection fuse
Delayed 2A fuse
SA = SA Air probe
Analogue input
Removable-type connector
Maximum cable length = 3m
SP = Not present
SW = Water probe
Analogue input
Faston-type connector
Maximum cable length = 3m
CE = External contact
Digital input
Screw clamps
Minimum cable section = 0.2mm2
Maximum cable section = 1.0mm2
Maximum cable length = 100m
MS = Microswitch
Edge-type connector
Control panel - TTL = Local serial TTL
Removable-type connector
Minimum cable section = 0.2mm2
Maximum cable section = 1.0mm2
Total maximum cable length = 30m
(see the diagram showing the con-
nections between the units)
CONNECTIONS TO THE ELECTRONIC CARD
Connections key:
NETWORK SETTINGS
TTL NETWORK
- Consisting of up to 6 fan coils (one
master and 5 slaves)
- Maximum line length 30m.
The master fan coils are equipped with
a control panel and an electronic card
with microprocessor which has outputs
in order to be inserted in a TTL network.
he OMNIA UL fan coil with slave
function must be fitted with the
electronic card with microprocessor
VMF-E0 or VMF-E1 (an accessory).
All the fan coils of the TTL network must
have the same type of accessory.
The settings (or set points) of the panel
on the main fan coil (master) are
received by the other fan coils (slaves).
The units connected to the TTL network
are automatically recognised (they
require no configuration procedure).
TTL Line
Max 30m
+
-
Omnia UL_S + VMF E0
/
Omnia UL_S + VMF E1
Omnia UL _N