emmeti ETI Series Guide

INSTALLATION AND USE MANUAL
GB
SILENCE THIN
ETM - ETI
Fan Coil
with Smart Touch controls

2
2
GBGB
Thanks you for the trust you have shown by purchasing this produtc.
Carefully read this manual which contains the specifications and all the
information useful for the correct functioning.
The information contained in this publication may be subject to changes
at any time and without any notice whatsoever for technical and/or com-
mercial reasons as they arise; therefore, we cannot be held responsible
for any errors or imprecisions contained herein.
® All rights reserved. No part of this pubblication may be reproduced or
distributed without written permission from Emmeti.
Warning!
Keep these manuals in a dry place avoiding in this way to spoil them.

GB
3
2
2
INDEX
P. 4 Premise
P. 5 Overview
- General Information
- Conformity
- Symbols
General warnings
basic safety
rules
P. 6 Product range
Getting to know Thin
P. 7 Overall dimensions
2-pipe THIN
P. 8 Technical specifications
2-pipe THIN version
installation
- POSITIONING THE UNIT
- INSTALLATION METHOD
P. 9 Minimum distances for
installation
- Opening the sides
P. 10 Upright floor or wall-mounted
installation
P. 11 Horizontal or ceiling-mounted
installation
- Hydraulic connections
P. 12 Connections
- Condensate drain
P. 13 Fitting the condensate drain
device in the vertical
version
P. 13 Fitting the condensate drain
device in the horizontal
version
P. 14 Rotating the connections
- Disassembling the panelling
- Disassembling the control
panel (if present)
- Disassembling the heat
exchangers
P. 17 Fitting the front grid
safety support
P. 18 Filling the system
P. 18 Evacuating the air
while filling
the system
P. 18 Maintenance
- external cleaning
- cleaning the air
intake filter
P. 21 Anomalies and solutions
P. 22 Hydraulic kit
fitting components
list of hydraulic accessories
- types of hydraulic connections
- piping diameter
- opening the sides
P. 23 Adjusting the retainer
P. 23 3-Way Valve With Diverter
Valve Thermoelectric
Head Kit
P. 24 ETM, ETI version, with
3-way diverter valve
fitting the thermostatic
head
P. 25 Graphics
P. 28 THIN-V-AUTO electric box
(automatic speed)
THIN-LAN electric box
Assembly
P.33 Wall-mounted LAN Control
Connections
P.36 THIN-4-V electric box
Assembly
P. 38 THIN-TBK electric box
Assembly
P. 42 THIN-010
Electric box
Assembly
P. 44 Version with connections on
the right
P. 45 THIN-V-AUTO
electric box
P. 49 Wall-mounted LAN Control
P.53 THIN-LAN electric box
P.54 THIN-4-V electric box
P.57 Technical data
P.58 Assembly template

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4
Directive 2012/19/EC (RAEE)
t the end of its operating life the UTA serie unit must be disposed according to the regulation in force in the installation country.
The units are manufactured with the following materials:
- Plates
- Copper – Aluminium - Stainless steel
- Polyester – Polyethylene - Fimbord - Plastic
This product is in compliance with the EU 2002/96/EC Directives. The symbol of the crossed-out rubbish bin shown on the appliance
indicates that at the end of its useful life, since it is handled separately from domestic waste, the product must be sent to a separate
waste collection centre for electric and electronic appliances or returned to the retailer at the moment of purchase of a new equiva-
lent appliance.
The user is responsible for sending the product to a suitable collection centre at the end of its life cycle. Proper separate collection for
subsequent recycling of the de-commissioned appliance, its handling and environmentally friendly disposal, helps to prevent possible
negative effects on the environment and public health and favours the recycling of the product’s manufacturing material. For more
detailed information about available collection systems, refer to the local waste disposal services or the shop where you bought the
appliance.
1. Foreword
In order to ensure safe, correct use of the unit, the installer, the
user and the maintenance technician are required to carefully
adhere to the provisions of this manual.
Keep this booklet in a dry place, to avoid damage to it, for at least ten
years, for possible future reference.
- Carefully read all of the information in this booklet: they provide
important information on safe installation, use, and maintenance.
- Pay particular attention to the instructions for use accompa-
nied by the captions “DANGER” or “ATTENTION”, since, if not
obeyed, they can cause damage to the unit and/or persons or
property.
- In the event of any problems not covered by this booklet, contact the
Technical Assistance Service in your area promptly.
- Make sure that this booklet always accompanies the unit.
- This booklet constitutes an integral and essential part of the product
and must be delivered to the user.
- In the event that the unit is sold, or transferred to another owner,
always make sure that the booklet accompanies the unit so that it can
be consulted by the new owner and/or by the installer.
- The manufacturer declines all responsibility for damage arising
from improper use of the unit, or from a partial or superficial
reading of the information contained in the booklet.
- The technical data, the aesthetic characteristics, the components and
the accessories listed in this booklet are not binding. The manufac-
turer reserves the right to introduce at any time all the modifications
believed to be necessary for the improvement of its product.
- References to laws, standards or technical regulations cited are to be
understood to be for information only and to refer to their publication
date. The coming into force of new provisions, or of modifications to
those in force, shall not be a ground for obligation by the manufacturer
towards third parties.
- The manufacturer is responsible for the compliance of its product with
laws, regulations and standards of construction in force at the time
of marketing. Knowledge and observance of the legislative provisions
and standards applying to the design of the equipment, its installation,
use and maintenance are the exclusive responsibility, as regards their
respective capacities, of the designer, the installer and the user.
-ATTENTION! It is important to check that the design and the
installation conform to current standards (EN Standards, safety
rules and local regulations) and are approved, where applica-
ble, by the competent regulating bodies on the subject.

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4
Do not leave the room closed
for long. Periodically open
the windows to ensure proper
ventilation.
This instruction booklet is an
integral part of the appliance
and, therefore, it must be kept
with care and must ALWAYS
accompany the appliance, even
when the latter is transferred
to another owner or user or
transferred to another system. If
it gets damaged or lost, please
request another copy from
the local Technical Assistance
Service.
Repairs or maintenance must
be performed by the Technical
Assistance Department or by
skilled personnel in accordance
with this manual.
Do not modify or tamper with the
applianceashazardoussituations
may be generated and the
appliance manufacturer shall not
be held liable for any damage
caused.
BASIC
SAFETY RULES
The use of products that use
electricity and water requires the
observation ofsome fundamental
safety rules such as:
Use of the appliance by children
and unassisted disabled persons
is prohibited.
It is forbidden to touch the
appliance if you are barefoot or
when parts of the body are wet
or damp.
Any cleaning operation is
prohibited before disconnecting
the appliance from the mains
power supply by placing the main
system switch on "off".
It is forbidden to modify the safety
or adjustment devices without
the authorization and the
manufacturer's directions
unit.
It is forbidden to pull, disconnect
or twist the electrical cables
coming out of the appliance,
even if it is disconnected from
the mains.
It is forbidden to introduce objects
and substances through the air
intake and delivery grilles..
OVERVIEW
GENERAL INFORMATION
Thank you for choosing an EMMETI
Thin fan coil unit to air condition
your rooms. Please read this user
and installation manual carefully
before installing and operating
the appliance. By following the
suggestions below you will be able
to maintain the performance of the
appliance over time. In compliance
withEuropeanregulation99/44/EEC,
the manufacturer guarantees the
machine for 24 months from
the date of purchase (without
prejudice to any commercial
warranty extensions), for any
manufacturing defects. Any
other problem related to incorrect
installation, extraordinary
weathering, non-conforming
sizing and unauthorised
tampering is excluded.
Conformity
EMMETI Thin fan coil units conform
to European Directives:
• Low Voltage Directive
(LVD) 2014/35/EU;
• Electromagnetic compatibility Direc-
tive (EMC) 2014/30/EU;
• RoHS Directive 2011/65/EC
• WEEE Directive 2012/19/EU
Symbols
The pictograms shown in the
following chapter allow you to
provide information, quickly and
unequivocally, which is necessary
for the machine to be used correctly
and safely.
Index
- The paragraphs preceded by
this symbol contain crucial
information and prescriptions,
regarding safety in particular.
Failure to comply may result in:
- risks for operator safety
- loss of the warranty
- disclaimed liability by the
manufacturer.
General hazard
- if the operation described is not
performed in compliance with
safety regulations, there may
be a risk of suffering physical
damage.
Electrical hazard
- if the operation described is
not performed in compliance
with the safety regulations,
there lies the risk of suffering
physical damage due to
contact with live elements.
GENERAL
WARNINGS
After unpacking, check that the
contents are intact and that all
parts are included. If not, contact
EMMETI who sold the appliance
to you.
The packaging contains:
- fan coil unit
- thermal insulation for valve
and retainer
- 2 brackets
- user and installation manual
- paper template.
The appliance must be installed
by an authorised EMMETI. Once
the work is done, it must issue
a declaration of conformity
to the client in compliance
with current regulations and
with the indications in the
instruction manual supplied y the
manufacturer with the appliance.
These appliances have been
designed for conditioning and/
or heating rooms and they
must be destined solely for this
purpose, in accordance with their
performance characteristics.
The manufacturer refuses any
contractual or extra-contractual
liability for damage caused to
people, animals or property
resulting from incorrect
installation, adjustment,
maintenance or improper use.
In the event of water leaks, turn
off the main switch and close the
water taps.
Immediately call the Technical
Assistance Service EMMETI or
other qualied personnel and do
not intervene personally on the
appliance.
The recessed ETI series THIN
have no grids or a cover cabinet.
Provide protective elements
and air supply/return grids to
prevent accidental contact with
the appliance.
The following steps must be
carried out if the appliance is
not to be used for a long period:
- Set the master switch of the
system to “off”
- Close the water valves
- If there is a risk of frost,
make surethat antifreeze liquid
has been added to the system,
otherwise empty the system.
A temperature that is too high or
too low is harmful to health and is
an unnecessary waste of energy.
Avoid prolonged direct contact
with the air ow.
It is forbidden to open the access
doors to the internal parts
of the appliance, without having
rst placed the main system
switch on “off”.
It is forbidden to disperse and
leave the packaging material
within the reach of children as
it can be
potential source of danger.
It is forbidden to stand on the
appliance and / or lean against it
any type of object.
The appliance can reach
temperatures on external
components above 70 ° C
BE VERY CAREFUL
TO ANY CONTACT MADE,
RISK OF BURNS.
PRODUCT RANGE
Fan coil units of the Thin range
care are divided into 2 basic
types: ETM and ETI – each of
which has different performance
and dimensions
ETM
fan coil unit (suitable for
horizontal or vertical installa-
tions). The horizontal conden-
sate drain pan kit accessories
are available to install the
ETM versions
ETM BRC20 BRC40 BRC60
BRC80
ETI
recessed fan coil unit with no
panelling (suitable for horizontal
or vertical installations).
ATTENTION
It is understood that this equip-
ment is not intended for use
by persons (including children)
with reduced physical, sensory
or mental abilities and must
not be used by people with no
knowledge and experience of the
product. They must be instructed
and monitored while using the
equipment by a person who is
responsible for their safety.

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6
PRODUCT RANGE
Fan coil units of the Thin range care
are divided into 2 basic types: ETM
and ETI – each of which has differ-
ent performance and dimensions
ETM
fan coil unit (suitable for
horizontal or vertical installations).
The horizontal condensate drain
pan kit accessories are available
to install the ETM versions
ETM BRC20 BRC40 BRC60
BRC80
ETI
recessed fan coil unit with no
panelling (suitable for horizontal
or vertical installations).
GETTING TO KNOW THIN
THIN - 2-pipes g. 1
A - Bearing structure in
electro-galvanised sheet metal
with high resistance.
B - Water heat exchanger coil
in copper pipes and aluminium
fins with high efficiency
turbulence. Eurokonus 3/4 type
threaded ttings, which conform
to the new EU standardisation
requirements.
The coil is equipped with a
sensor to detect the water
temperature (ETM, ETI version,
electronic).
1
G
B
A
L
M
H
F
E
I
ATTENTION
It is understood that this equipment
is not intended for use by persons
(including children) with reduced
physical, sensory or mental
abilities and must not be used by
people with no knowledge and ex-
perience of the product. They must
be instructed and monitored while
using the equipment by a person
who is responsible for their safety.

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7
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E - Ventilation unit
including a tangential fan in
synthetic material with staggered
ns (very quiet), tted on EPDM
anti-vibration mounts, statically
and dynamically balanced, and
tted directly onto the crankshaft.
F - Electric motor
single-phase resin pack tted on
EPDM anti-vibration mounts.
G - Reversible air supply grid
in oven dried, epoxy powder
coated aluminium (metallic silver).
The large size enhances the high
mechanical resistance.
H - Intake air grid
in electro-galvanised, oven-dried,
epoxy powder coated sheet metal,
with a quick release device for
cleaning the lters and a safety
microswitch.
I - Condensate drain pan
for vertical installation, in ABS,
easily removable for cleaning
operations. For ETM versions
to be installed horizontally, the
horizontal condensate drain pan
kit (BRC) accessory is available.
L - Back panel
soundproofing structure in
compressed yarn (FIMBORD
GR900) with high resistance.
M - Front casing
and removable side panels
in electro-galvanised, oven
dried, epoxy powder coated
sheet metal.
2-PIPE THIN OVERALL DIMENSIONS
See gure 3 and refer to the relevant model.


ETM 220 ETM 240 ETM 260 ETM 280 ETM 2100
A 735 935 1135 1335 1535
3
ETI 220 ETI 240 ETI 260 ETI 280 ETI 2100
A 525 725 925 1125 1325

8
GB
8
2-PIPE THIN VERSION TECHNICAL SPECIFICATIONS
See the table in gure 5 and refer to the relevant model.
ACoil water content
CMaximum operating pressure
DMaximum water inlet temperature
EMinimum water inlet temperature
FHydraulic connections
GSupply voltage
HAbsorbed max current
IAbsorbed max power
MWeight of ETI
NWeight of ETM
5
ℓ
bar
°C
°C
“
V/ph/Hz
A
W
kg
kg
A
C
D
E
F
G
H
I
M
N
220
0.47
10
80
4
Eurokonus 3/4
230/1/50
0.11
11.9
9
17
240
0.8
10
80
4
Eurokonus 3/4
230/1/50
0.16
17.6
12
20
260
1.13
10
80
4
Eurokonus 3/4
230/1/50
0.18
19.8
15
23
280
1.46
10
80
4
Eurokonus 3/4
230/1/50
0.26
26.5
18
26
MOD.
INSTALLATION
POSITIONING THE
UNIT
Do not install the unit near:
- anything that is subject to
direct exposure to sunlight;
- sources of heat;
- damp environments and
areas with probable contact
with water;
- environments with oil vapours
- environments subjected to
high frequencies.
Make sure that:
- the wall on which the unit is to
be installed has an adequate
structure and capacity;
- the area of the wall in question
has no pipes or electric lines
passing
- the wall in question is perfectly
level;
- there is an area free from
obstacles, which could
compromise the input and
output air circulation;
- the installation wall is possibly
an external perimeter wall
so as to allow the outward
condensate drain;
- in case of a ceiling installation,
the air flow is not directed
directly towards people.
INSTALLATION METHOD
The following descriptions of
the various assembly phases
and the relative drawings refer
to a machine version with
connections on the left.
The descriptions for machine
assembly operations with
connections on the right are
the same.
The images just have to be
considered specular.
Carefully follow the instructions
in this manual for a successful
installation and optimal
operating performance. Failure
to apply the indicated standards,
which can cause equipment
malfunctions, relieve EMMETI
from any form of warranty and
from any damage caused to
people, animals or property.
It is important for the electrical
installation to be executed in
accordance with the law, for it to
conform to the data indicated in
the technical data sheet and for
it to consist of a good earthing
system.
The appliance must be installed
in a position that easily allows
routine (filter cleaning) and
special maintenance to be
performed, as well as access
to the air vent valves (coil and
plates), which can be reached
from the top grid on the
connections side.
2100
1.8
10
80
4
Eurokonus 3/4
230/1/50
0.28
29.7
21
29

9
8
GB
8
MINIMUM DISTANCES FOR INSTALLATION
Figure 7 shows the minimum assembly distances of the fan coil unit from the walls and furniture in the room.
7
  



B
A
D
A
B
C
8
OPENING THE SIDES
- On the left side, lift the lid that covers the
screw, loosen the screw that secures the left panel,
move it slightly to the left and lift it.
- On the opposite side, lift the lid that covers the
screw and unscrew it.
- Move the side panel slightly to the right and
lift it.
Alid
Bxing screws
Cleft panel
Dright panel

10
10
GB
WALL OR VERTICAL FLOOR INSTALLATION
In the case of oor mounting with sockets, for mounting these, refer to the individual instruction sheets supplied and the relative manual.
Use the paper template, and trace the position of the two xing brackets on the wall (g. 9). Drill with a suitable tip and insert the dowels (2
for each bracket) (g. 10 ref. A); x the two brackets (g. 10 ref. B). Do not over tighten the screws, so as to be able to adjust the brackets
with a level bubble (g. 11).
Lock the two brackets denitively by tightening the four screws completely.
Check its stability by manually moving the brackets to the right and left, up and down.
Assemble the unit, checking the correct hooking on the brackets and its stability (g. 12).
9
11
A AB
B
10
12

GB
11
10
10
HORIZONTAL OR CEILING-
MOUNTED INSTALLATION
Use the paper template to
trace the position of the two
xing brackets and the two rear
screws on the ceiling. Use a
suitable tip to drill and insert
the plugs (2 for each bracket)
(g. 13 ref. A); secure the two
brackets (g. 13 ref. B). Do not
over tighten the screws.
Insert the machine on the two
brackets, keeping it in position,
then secure the two screws in
the rear plugs (g. 13 ref. C),
one on each side.
It is recommended to apply an
adequate inclination to the unit
towards the drain pipe, so as to
facilitate the water output (g.
13 ref. D).
Tighten all 6 fixing screws
securely.
The horizontal condensate drain
pan kit accessories are available
to install the
ETM versions
ETM BRC20 BRC40 BRC60
BRC80 BRC100.

13
A A B B
CD
HYDRAULIC CONNECTIONS
Piping diameter
The minimum internal diameter
that is to be complied with for the
hydraulic connection pipes varies,
according to the model:
ETM-ETI 220 ø12 mm
ETM-ETI 240 ø14 mm
ETM-ETI 260 ø16 mm
ETM-ETI 280 ø18 mm
ETM-ETI 2100 ø20 mm
For the position of the pipes for
the wall-mounted connections,
refer to the drawings in the
following paragraphs, based
on the specic conguration.

GB
12
CONNECTIONS
The choice and sizing of the
hydraulic lines is the responsi-
bility of the designer, who must
operate according to the rules
of good technique and current
legislation.
To make connections:
14
A B
C
- position the hydraulic lines
- tighten the connections using
the “key against key” method (g.
14 ref. B)
- check for liquid leakage
- coat the connections with insulat-
ing material (g. 14 ref. C).
Hydraulic lines and joints must be
thermally insulated.
Avoid partial pipe insulation.
Avoid tightening too much to avoid
damaging the insulation.
For the water resistance of the
threaded connections use hemp
and green pasta; the use of Tef-
CONDENSATE DRAIN
The condensate drain system
must be adequately sized
(minimum internal pipe diameter
16 mm) and the piping positioned
so as to always maintain a
certain gradient along the path,
which is never less than 1%.
When installed vertically, the
drain pipe is connected directly
to the drain pan, found at the
bottom, on the side edge, under
the hydraulic connections.
In the horizontal installation, the
drain pipe is connected to that
already found on the machine.
For the ETM versions to be
installed horizontally, the ETM
BRC20 /BRC80 horizontal
condensate drain pan kit accessories
are available.
- If possible, drain the condensate
liquid directly into a gutter or a
rainwater drain.
- If drained into the sewer system,
it is advisable to install a siphon
to prevent the backflow of
odours towards the rooms.
The curve of the siphon must
be lower than the condensate
drain pan.
- Should the condensate have
to be drained into a container,
this must be left open and the
pipe must not be immersed in
the water, thereby preventing
phenomena related to adhesion
and counter pressure that
would hinder the free ow.
- A pump must be installed to
overcome unevenness, which
would obstruct the flow of
condensate:
- in a vertical installation, install
the pump under the side drain
pan;
- in a horizontal installation, the
position of the pump must be
decided upon according to
specic requirements.
However, at the end of the
installation, it is advisable to
verify the correct outow of the
condensate liquid by pouring
about 1/2 l of water very slowly
(in about 5-10 minutes) into the
drain pan.
lon tape is recommended in the
presence of antifreeze liquid in
the hydraulic circuit.

GB
13
12
FITTING THE CONDENSATE
DRAIN DEVICE IN THE VER-
TICAL VERSION
Connect the condensate drain
pan tting (g. 15 ref. A) to a pipe
for the ow of liquid (g. 15 ref.
B) and block it properly. Check
that the drip guard extension
(g. 15 ref. C) is present and
installed correctly.
FITTING THE CONDENSATE
DRAIN DEVICE IN THE HORI-
ZONTAL VERSION
Refer to the instructions found in
the BRC20/BRC100 kits to install
the horizontal pan on the ETM
versions.
- check that the L-shaped pipe
and the exible rubber pipe are
connected correctly to the pan
(g. 16 ref. A).
- insert the side of the machine
while keeping the pipe in po-
sition, in abutment on the front
grid.
- close the side securely, checking
that the pipe remains blocked in
the specic slot on the side (g.
16 ref. B).
NOTE: abide by the following
warnings for a horizontal in-
stallation:
- make sure the machine is in-
stalled perfectly level, or with
a slight inclination towards
the condensate drain;
- insulate the supply and return
pipes well, up to the inlet to
the machine, so as to prevent
condensation from dripping
outside the drain pan;
- insulate the condensate drain
pipe of the pan along its en-
tire length.
16
AB
B
15
A
C
Ø 14 mm
Ø 14 mm

GB
14
ROTATING THE CONNECTIONS
Pay particular attention to all
steps to rotate the exchanger
connections so as to prevent
water leaks and malfunctions.
The steps described and the rel-
ative images refer to a machine
with connections on the left, which
require the rotation of the connec-
tions on the right side. If you have
a machine with connections on
the right that need to turn to the
left, the sequence is the same, the
18
B
E
D
D
A
B
images just have to be considered
specular.
Connect the motor to the control kits
by using the relevant optional CCM-
DC wiring cod.07524061.
Disassembling the panelling
- Remove the upper grid (g. 17
ref. E) by unscrewing the two
xing screws (g. 17 ref. F).
- Remove the lower front grid (g.
18 ref. A).
- Unscrew the front panel (g. 18
ref. E) xing screws (g. 18 ref.
B-D) and remove it.
B
A
D
A
B
C
E
F
F
17
- On the left side, lift the lid that
covers the screw, loosen the
screw that secures the left panel,
move it slightly to the left and lift
it.
- On the opposite side, lift the
lid that covers the screw and
unscrew it.
- Move the side panel slightly to
the right and lift it.
Alid
Bxing screws
Cleft panel
Dright panel

GB
15
14
Panel disassembly of
command (if present)
- Set the system main switch to off.
- Remove the two screws that x the
blind panel (g. 20 ref. A) to the
front panel (g. 18 ref. E).
- Remove the two screws that x the
control panel (g. 20 ref. C) to the
front panel (g. 18 ref. E).
- Remove the electrical panel on the
side of the fan coil unit and then
place it on the opposite side.
20
CD
F
- Disconnect the electrical connection
connectors.
- Remove the wiring inside the ma-
chine and reinsert them from the
opposite side.
- Use the appropriate CCM-DC
wiring for right-hand connections
cod.07524061 for the motor con-
nection, available as an accessory.
- Reverse the mounting positions (g.
20 ref. C) of the control panel and
remount them in their respective
positions.
- Remove the condensate collection
tray (g. 20ref. F) and ret it on the
opposite side with the relative xing
screws (g. 20 ref. G).
A
A
C
F

GB
16
Disassembling the heat
exchangers
- Unscrew the four screws that
secure the heat exchanger (g.
21 ref. C);
- remove the coil water probe, if
present.
- remove the heat exchanger (g.
21 ref. F);
- remove the drip guard extension
from the central pan (g. 21 ref.
D);
- on the opposite side, remove
the plug on the condensate
evacuation hole (g. 21 ref. E);
22
21
C
E
D
C
F
G
- unscrew the fixing screw
of the central condensate drain
pan (g. 21 ref. G), set the pan
on the opposite side so that the
connection nozzle for the drip
guard extension comes out of
the structure, therefore block
the pan with the previously
removed screw;
- reinsert the drip guard extension
and the cap on the opposite
side;
- open the pre-cut hexagonal holes
on the right side insulation and
close the hexagonal holes on
the left edge with insulating
material;
- rotate the exchanger, bringing
the connections to the opposite
side, and reinsert it on the
machine (g. 22);
- tighten all the heat exchanger
xing screws.
Once all the described steps have
been completed, reassemble
all the previously disassembled
components, following the
disassembly steps in inverse
order.

GB
17
16
FITTING THE FRONT GRID
SAFETYSUPPORT
If the fan coil unit is installed in
a horizontal position, ensure
the filter cleaning/replacement
steps are carried out safely, the
two safety clamps found in the
bag provided with the instruction
manual and accessories, must be
installed by the installer.
24
A
B
B
CC
B
C
- Separate the two clamps (g. 24
ref. A);
- open the front grid and unscrew
the xing screws of the springs
completely (g. 24 ref. B);
- secure the two clamps by
retightening the screws (g. 24
ref. B);
- secure the other part of the
clamps to the grid using the
screws supplied (g. 24 ref. C);
- close the grid.

18
GB
SYSTEM FILLING
When starting up the system, make sure that
the holder on the hydraulic unit is open. If
you nd yourself without a power supply and
the thermo-valve
It has already been powered previously. You
will need to use the special cap to press the
valve shutter to open it.
A
25
B
- When water starts coming out of the vent
valves of the appliance, close them and
continue loading up to the intended nominal
value for the system.
Check the hydraulic tightness of the gaskets.
It is advisable to repeat this step after the
appliance has been running for a few hours
and to regularly check the system pressure.
MAINTENANCE
Periodic maintenance is essential to maintain
the SILENCE - THIN fan coil unit always efcient,
safe and reliable over time. Certain steps can
be performed half-yearly, and other annually, by
the Technical Assistance Department, which is
technically authorised and trained, and can also
dispose of original spare parts, if necessary.
28
EVACUATION OF THE AIR DURING THE
FILLING OF THE SYSTEM
- Open all the system interception devices
(manual or automatic);
- Start lling by slowly opening the system
water lling tap;
- For the ETM and ETI models installed in a
vertical position act (using a screwdriver) on
the top of the battery vent (g.25 ref.A); for
appliances installed in a horizontal position,
act on the topmost vent (g.25 ref.B);
EXTERNAL CLEANING
Before performing any
cleaning or maintenance,
disconnect the unit from the
mains by switching off the
main power switch.
Wait for the components to
cool down so as to prevent
the risk of burns.
When necessary, clean the
external surfaces of the SILENCE
- THIN fan coil unit with a soft
cloth dampened with water (g.
28).
Do not use abrasive sponges
or abrasive or corrosive
detergents so as not to damage
the painted surfaces.

19
18
GB
29
Air intake lter cleaning
After a period of continuous operation and
in consideration of the concentration of
impurities in the air, or when you intend to
restart the system after a period of inactivity,
proceed as described.
Extraction of lter cells in the versions with n
suction grille
- remove the front grille by lifting it slightly (g.
29 ref. A) and rotate it until it is completely
out of its seat (g. 29 ref. B);
- remove the lter (g. 29 ref. C), pulling it
horizontally outwards (g. 29 ref. D).
Cleaning lter media
- vacuum the dust from the lter with a vacuum
cleaner (g. 31 ref. A)
- wash the lter (g. 31 ref. B) under running
water, without using detergents or solvents,
and allow it to dry.
- Reassemble the lter on the fan coil (g. 32
ref. A), paying particular attention to insert
the lower edge (g. 32 ref. B) in its seat (g.
32 ref. C).
AB
CD
- It is forbidden to use the
appliance without the mesh
lter.
- The appliance is tted with a
safety switch that prevents
the fan from running without
the intake grid or if it is set
incorrectly.
- After cleaning the lter, check
that the intake grid is installed
correctly.
Complete the cleaning steps
- For the versions with a nned
grid, insert the two tabs (g. 33
ref. A) into the relevant slots (g.
33 ref. B), rotate it and engage it
with a slight knock on in the upper
part.
TIPS TO SAVE ENERGY
- Always keep the lters clean;
- keep doors and windows of the
rooms that are to be air-conditioned
closed as much as possible;
- in the summer, limit the direct
irradiation of the sunrays into the
areas that are to be air-conditioned,
as much as possible (use curtains,
shutters, etc.).

20
20
GB
31
A B
AB
32
BC
C
B
33
A
B
33