TECHNICAL MANUAL
ART-U
Fan coil unit with Design cabinet, minimum depth and BLDC motor
1-4 kW
EN
FC66005368 10/18
PLUS
» A furnishing with an innovative design and width up to
only 10 cm
» Inverter-controlled BLDC motor
» Low energy consumption
» Modulating operation
BLDC motor Tangential fan Supervision
ERGO
2
2 pipes systems Vertical
installation
Dear Customer,
Thank you for placing your trust in one of the products of Galletti S.p.a
This product is the result of our work and our commitment to design, research, and production and has been
made from the nest materials, employing state-of-the-art components and production technology.
The CE marking of the product ensures its compliance with the safety requirements of the following directives:
the Machinery Directive, the Electromagnetic Compatibility Directive, the Electrical Safety Directive, and the
Pressure Equipment Directive. Fulllment of the Ecodesign requirements is fully in keeping with the environmental awareness that has always guided our company.
The company certication of the Quality and Safety management system ensures that product quality is
constantly checked and improved, and that the product is manufactured in full compliance with the highest
standards.
By choosing our product, you have opted for Quality, Reliability, Safety, and Sustainability.
At your disposal, once again.
Galletti S.p.a
TABLE OF CONTENTS
1 MAIN FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 4
1.1 AVAILABLE VERSIONS . . . . . . . . . . . . . . . . . . . . . . . . . p. 4
1.2 CONFIGURATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 4
1.3 AVAILABLE ACCESSORIES . . . . . . . . . . . . . . . . . . . . . p. 5
2 MAIN COMPONENTS. . . . . . . . . . . . . . . . . . . . . . . p. 6
2.1 CABINET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 6
2.2 CONVEYORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 6
2.3 UPPER GRILLE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 6
2.4 FRONT GRILLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 6
2.5 HEAT EXCHANGER . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 6
2.6 AIR FILTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 7
2.7 ELECTRIC MOTOR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 7
2.8 TANGENTIAL FANS . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 7
2.9 EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 8
3 INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 9
3.1 INSTALLATION REQUIREMENTS. . . . . . . . . . . . . . . . p. 9
4 RATED TECHNICAL DATA . . . . . . . . . . . . . . . . . p. 11
5 WEIGHTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 11
6 PERFORMANCES . . . . . . . . . . . . . . . . . . . . . . . . . . p. 12
7 ELECTRICAL CONNECTION DIAGRAMS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 13
8 OVERALL DIMENSIONS . . . . . . . . . . . . . . . . . . . p. 17
9 ACCESSORIES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 18
10 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 20
10.1 CLEANING THE AIR FILTER. . . . . . . . . . . . . . . . . . . . p. 20
10.2 CLEANING THE HEAT EXCHANGER . . . . . . . . . . . p. 20
10.3 CLEANING THE CABINET . . . . . . . . . . . . . . . . . . . . . p. 20
OPERATING LIMITS
Thermal carrier uid: water
Water temperature: 5°C ÷ 80°C
Air temperature: 5°C ÷ 43°C
Supply voltage: 230 V - 50 Hz
Maximum water pressure during operation: 10
bar
Limit of room air relative humidity: RH<85% not
condensing
1 MAIN FEATURES
From the extensive experience of Galletti in the development
and design of fan coil units, and in conrmation of its continuous search for innovation, has been created ART-U, the result of
a perfect combination of performance and design.
The ambitious goal of this project was to develop something
absolutely new and unique, a product not yet present on the
market, which on the one hand was able to meet the increasingly stringent demands for energy eciency, while on the other
hand could, for the rst time, reect the latest trends in furnishings and interior design.
With the new ART-U, Galletti this goal has been fully achieved,
presenting on the market a new concept of hydronic indoor
unit, a product that is characterized by its enviable technical
performance and at the same time represents a true style shift
in a eld that has long been dominated by products that are all
very similar to each other.
AVAILABLE VERSIONS
Models with on-board control (or predisposition) have two side
doors (left and right).
The models intended only for remote controller have a continuous upper grill.
CONFIGURATOR
ART-U, with its width that in some places is only 10 cm, and
thanks to its unique lines, was designed to be an absolutely
all-purpose product, that adapts perfectly to rigorous and essential environments as well as to warmer and more sophisticated spaces. Thanks also to the possibility of customizing the front
panel, ART-U meets the demand for ever more personalization
of the spaces to be furnished.
The achievement of extremely high aesthetic standards has not
weakened the usual construction integrity of Galletti products:
striving for innovation has in fact also focused on the components and the use of new materials.
With ART-U the state of the art has been redened also in terms
of technical performance, thanks to the use of computational
uid dynamics simulations for the optimisation of the heat exchange inside the indoor unit combined with the use of permanent magnet electric motors.
WARNING: on designed models for remote control isn't
possible to install subsequently a on board control, pay attenction to this when ordering the unit
A U 1 0 W
Family
Size
10
20
30
40
50
Version
Y Grey
W White
I L
Motor
I Brushless L lef t
Std.Coil
R right
0
DF Coil
0 absent 0 absent
0
Valves
1 3 way on/o 230V
2
2 way -
on/o 230V
3
3 way -
modulating
5 3 way on/o 230V
6 2 way on/o 230V
0
Control
0 absent
T touch basic
6 TED10
E EVO board
F EVO board
+disp
0
Probe
0
absent
1
SA
2
SW
3
SU
4 SA+SW
5 SA+SU
6 SA+SU+SW
B SA x TED
C SW x TED
D SA+SW TED
0
Accessories
various
0
absent
1BV
2 shell valves
0
Upper grill Release / Special
0
continuous
grill
P control
doors
0 A
0A rst release
ARTU
TECHNICAL MANUAL4
1.3 AVAILABLE ACCESSORIES
Electronic microprocessor control panels with display
EVOBOARD Circuit board for EVO control
EVODISP User interface with display for EVO controller
KBEVS EVO on-board installation Kit for ART-U
MCLE Microprocessor control with display MY COMFORT LARGE
MCSUE Humidity sensor for MY COMFORT (medium e large), EVO
MCSWE Water sensor for MYCOMFORT, EVO, LED 503 controllers
Electronic microprocessor control panels
KBTES On-board ART-U installation kit suitable for TED controller
TED 10 Electronic controller for BLDC fan equipped with inverter and ON/OFF valves 230 V
TED SWA Water temperature sensor for TED controls
Auxiliary water drip trays, insulating shell, condensate drainage pump
BV Auxiliary water drip tray for vertical installation fan coil units
GIVK Insulating shell for VKS valve
Valves
V2VSTD 2-way valve, ON/OFF or MODULATING ac tuator, 230 V or 24 V power supply, hydraulic kit, for main heat exchanger
V3VSTD 2-way valves, ON/OFF or MODULATING actuator, 230 V or 24 V power supply, hydraulic kit, for main heat exchanger
FC66005368
All copying, even partial, of this manual is strictly forbidden 5
2 MAIN COMPONENTS
2.1 CABINET
The elegant front panel consists of two sheets of aluminium
with a polyethylene core and possibly a polyester-based surface
coating. It is a light but very resistant material, created for covering façades in the building sector. The side panels are made of
UV-stabilized ABS to maintain the colour over time.
The polyethylene core acts as a exible ller and thermal insulation while the aluminium provides structural strength and
aesthetics.
It can be customized in dierent chromatic variations on request:
ART-U Grey:
Side panels in ABS colour RAL 9005;
Front grill supplied with black stainless steel lter;
Upper grille colour black consisting of adjustable ns in ano-
dized aluminium and ABS supports.
Front panel consisting of brushed natural aluminium sheets;
ART-U White:
2.2 CONVEYORS
Made of high-density polystyrene. They are designed to optimise the air ow inside the hydronic indoor unit allowing optimal distribution of the air ow in the coil and low noise in every operating mode.
Side panels in ABS Colour RAL 9010;
Front grille supplied with stainless steel lter;
Upper grille consisting of adjustable ns in anodized alumin-
ium and ABS supports.
Front panel consisting of RAL9010 colour sheets;
2.3 UPPER GRILLE
Consisting of adjustable ns made of anodised aluminium, available in the version for on-board or wall-mounted control. The
ABS combs support the grilles and prevent them from being
bent, thus always guaranteeing the user’s safety.
Wall-mounted control unit version has a continuous upper grille.
In the version for on-board control, the grill has two side doors
to allow access to the control.
2.4 FRONT GRILLE
Stabilizes the operation of the tangential fan unit and is
equipped with a stainless steel lter.
2.5 HEAT EXCHANGER
With high eciency turbocoil-type heat exchanger, and made
with copper tubing and aluminium ns, it is equipped with brass
manifolds and a vent valve.
The hydrophilic treatment is applied to the ns as a standard
treatment, to increase their eciency during cooling.
Water connections on the left available on standard version. Water connections on the right available on request.
ARTU
TECHNICAL MANUAL6
2.6 AIR FILTER
Honey-comb polypropylene washable lter, easily removable for maintenance operations.
2.7 ELECTRIC MOTOR
Permanent magnet BLDC motor with inverter integrated in
the ventilation unit. An IP44, protection rating is guaranteed;
therefore, dust inside is avoided and resistance to water spray
is guaranteed.
2.8 TANGENTIAL FANS
Tangential fan, statically and dynamically balanced to reduce its
noise during operation.
The ABS used for the blades guarantees, in comparison with
metal fans, a reduction in vibrations and an absence of bending
along the rotation axis.
The blades are alternated with intermediate reinforcement disks
in order to increase their sturdiness.
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2.9 EXPLODED VIEW
2
5
4
6
7
11
1
9
8
3
Legend
1 Base unit
2 Heat exchanger
3 Electric motor
4 Tangential fan
5 Condensate drip tray
6 Filter
7 Cabinet
8 Connection terminal board
9 Terminal board cover
10 Slots for installation of basic unit
11 Outlet air grill
10 10
ARTU
TECHNICAL MANUAL8
3 INSTALLATION
WARNING: unit installation and start-up must be entrusted
to competent personnel and performed in a workmanlike
manner, in accordance with current regulations.
For each unit an (IL) switch should be mounted on the power
supply, with opening contacts at a distance of at least 3 mm
and a suitable protection fuse (F) .
WARNING: Install the unit, circuit breaker (IL) and/or any re-
mote controls in a place out of reach of persons who may be
taking a bath or shower.
WARNING: the EMC lters connected to frequency con-
verters (inverters) can create leakage currents toward
ground (in order to make the unit EMC compliant, by reducing conducted emissions on power supply line). Depending on installation site, this can force the cut out of the
dierential safety switch. It is recommended to install a separate dierential safety switch, only for the BLDC unit, with an
adjustable threshold for the cut out current.
WARNING: base unit must be protect by original packaging
3.1 INSTALLATION REQUIREMENTS
The fan coils should be installed in a position where the room
can be cooled or heated evenly, on walls able to withstand their
weight.
It is advisable to install any accessories on the standard unit prior to positioning the latter.
For installation and use of accessories, please refer to the relative
technical sheets.
Install any remote control panel in an easily accessible position
allowing the user to set the functions while ensuring an accurate
reading of the ambient temperature, if provided.
Avoid therefore:
positions directly exposed to sunlight;
positions exposed to direct currents of warm or cold air
placing obstacles that impede an accurate temperature
reading
The water connections are on the left side, viewing the unit
from the front.
Hydraulic connections on the opposite side are available only on order
The water connection pipes must pass through the slots provided on the rear panel of the unit (depending on the L or R
version, use the appropriate slot)
NOTE: the electrical wiring must always be positioned on the
opposite side of the plumbing connections.
Make the plumbing connections to the heat exchanger and,
where the cooling function is to be used, to the condensate
drainage outlet.
It is recommended to connect the installation intake to the upper part of the heat exchanger and the return to the bottom part
of it.
Bleed air from the exchanger by means of the air vent valves situated beside the plumbing connections of the exchanger.
To favour the drainage of condensate, the drain hose should be
inclined downward, at least 3 cm/m; make sure that no loops or
bends form along its path.
WARNING:
In normal operation, particularly with the fan at minimum
speed and ambient air with high relative humidity, condensation may form on the air outlet and on some external parts
to avoid demage at the worksite, before cabinet installation.
WARNING: keep the cabinet inside the original packaging
until the nally installation
When choosing an installation site, you should observe the following rules:
The air conditioning unit should not be placed immediately
under a socket
Do not install the unit in places where inammable gases or
powders are present
Do not expose the unit to sprays of water
Install the unit on walls able to withstand its weight. Keep a
clear space all around the unit to assure the proper function-
ing and accessibility for routine and extraordinary mainte-
nance (see gure 8.1p.17)
store the unit in its packing container until you are ready to
install it
WARNING: Equipment designed for ambient air condi-
tioning and intended for use in civil comfort applications.
of the unit.
To avoid such issues while always remaining within the op-
erating limits envisaged for the unit, it is necessary to limit
the (average) temperature of the water inside the heat ex-
changer. In particular, the dierence between the air dew
point (TA,DP) and the average water temperature (TWM) must
NOT exceed 14 °C, according to the following relationship:
TW>TA,DP-14 °C
Example: in the case of ambient air at 25 ° C with 75% rel-
ative humidity, the dew point temperature is about 20 ° C
and therefore the average temperature of the water in the
battery must be greater then:
20-14 = 6 °C in order to avoid condensation on a fancoil
equipped with a valve.
20-12 = 8 °C If the valve kit accessory can not be installed.
Fan coil with valve
Air temperature dry bulb (°C)
21 23 25 27 29 31 33
40 5 5 5 5 5 5 5
Relative Humidity
%
Relative Humidity
%
50 5 5 5 5 5 6 8
60 5 5 5 5 7 9 11
70 5 5 6 8 9 11 13
80 5 6 8 10 12 14 16
90 6 8 10 12 14 16 18
Fan coil without valve
Air temperature dry bulb (°C)
21 23 25 27 29 31 33
40 6 6 6 6 6 6 6
50 6 6 6 6 6 8 10
60 6 6 6 7 9 11 13
70 6 6 8 10 11 13 15
80 6 8 10 12 12 16 18
90 8 10 12 14 14 18 20
In the event the indoor unit is stopped for a prolonged peri-
od, with the fan stopped and circulation of cold water in the
heat exchanger, condensation may also form on the unit’s
FC66005368
All copying, even partial, of this manual is strictly forbidden 9
exterior. In this case it is advisable to install the 3-way (or
2-way) valve accessory in order to stop the ow of water in
the coil when the fan is stopped.
During wintertime periods of quiescence, drain water from the
system, to prevent ice from forming. If anti-freeze solutions are
used, check for their freezing point using the table below.
% Glycol by weight
0 0 1,00 1,00
10 -4 0,97 1,05
20 -10 0,92 1,10
30 -16 0,87 1,15
40 -24 0,82 1,20
Freezing
temperature (°C)
Capacity
adjustment
Pressure drop
adjustment
ARTU
TECHNICAL MANUAL10
4 RATED TECHNICAL DATA
ART-U 10 20 30 40 50
Speed min med max min med max min med max min med max min med max
Control voltage V 4,50 5,60 6,40 4,90 7,00 10,0 5,40 7,00 10,0 5,50 7,00 10,0 5,50 7,00 10,0
Rated air flow m³/h 110 141 179 190 275 391 295 390 528 412 529 715 474 609 824
Power supply V-ph-Hz 230 - 1 - 50
Power input (E) W 4 5 6 7 11 17 10 14 23 14 20 32 16 23 36
Total cooling capacity (1) kW 0,39 0,69 0,80 0,93 1,32 1,67 1,44 2,01 2,44 1,96 2,62 3,16 2,29 3,17 3,72
Sensible cooling capacity (1) kW 0,29 0,50 0,63 0,69 0,99 1,28 1,05 1,44 1,84 1,43 1,97 2,43 1,66 2,26 2,83
Total cooling capacity (2)(E) kW 0,39 0,69 0,80 0,93 1,31 1,66 1,43 2,00 2,42 1,95 2,60 3,13 2,28 3,14 3,69
Sensible cooling capacity (2)(E) kW 0,29 0,49 0,62 0,68 0,98 1,26 1,04 1,43 1,82 1,42 1,95 2,39 1,65 2,24 2,79
FCEER class (E) C B B B B
Water flow (1) l/h 67 116 134 161 227 282 247 329 395 338 441 528 395 517 622
Water pressure drop (1)(E) k Pa 1 1 2 4 8 11 12 20 27 9 15 20 14 23 31
Heating capacity (3)(E) kW 0,73 0,93 1,05 1,28 1,70 2,14 1,98 2,41 2,94 2,65 3,22 3,92 3,08 3,74 4,56
FCCOP class (E) C
Water pressure drop (3)(E) k Pa 1 1 2 4 8 11 12 20 27 9 15 20 14 23 31
Heating capacity (4)(E) kW 0,56 0,73 0,87 1,04 1,38 1,81 1,52 2,09 2,48 1,96 2,66 3,34 2,49 3,07 3,74
Water flow (4) l/h 98 126 146 169 238 303 261 359 413 360 457 557 416 528 644
Water pressure drop (4)(E) k Pa 1 1 2 4 7 12 11 20 27 8 14 20 14 20 28
Total sound power level (5)(E) dB(A) 37 44 49 39 47 54 41 47 54 42 47 54 42 47 54
(1) Water temperature 7°C / 12°C, air temperature dry bulb 27°C, wet bulb 19°C (47% relative humidity)
(2) According to EN1397:2015
(3) Inlet water temperature 50°C, water flow rate same as in cooling mode, air temperature 20°C
(4) Water temperature 45°C / 40°C, air temperature 20°C
(5) Sound power measured according to standards ISO 3741 and ISO 3742
(E) EUROVENT certified data
5 WEIGHTS
Mod.
ART-U 010 12
ART-U 020 14
ART-U 030 17
ART-U 040 19
ART-U 050 21
kg
FC66005368
All copying, even partial, of this manual is strictly forbidden 11
6 PERFORMANCES
Galletti has developed on its www.galletti.com web-area the new ON-LINE integrated platform for product selection, conguration
and the making of the economic oer.
The software, whose use is easy and intuitive, allows the identication of the desired products by calculating their performances
based on real working conditions and their conguration helping the user in choosing options and accessories. It also allows to obtain a detailed report which includes performances, dimensional drawings, tender specications and the economic oer.
Product selection:
Filters to make the identication of the requested product easier
Performance calculation and saving of results
Performance comparison between products belonging to dierent series
Conguration and project history
Wizard conguration of accessories and options for chillers, heat pumps and
hydronic units
Creation of a project which collects all products of interest
Complete management of the storaged history projects
Report:
Generation of a detailed list report in pdf format
Choice of the sections to be included in the print:
Products performances
Dimensional drawings
Tender specications
ARTU
TECHNICAL MANUAL12
7 ELECTRICAL CONNECTION DIAGRAMS
The connections dotted must be made by the installer. For each unit an (IL) switch should be mounted on the power supply, with
opening contacts at a distance of at least 3 mm and a suitable protection fuse (F) .
Make the electrical connections with the power supply disconnected, in accordance with current safety regulations, and following
the base wiring diagram and pertinent legend.
Check that the mains electricity supply is compatible with the voltage shown on the unit rating plate.
The electrical connections indicated must be made by the installer.
For each fan coil a switch (IL) should be mounted on the power supply, with opening contacts at a distance of at least 3 mm and a
suitable protection fuse (F).
» 7.1 Base wiring diagram
1: Control panel connection (accessory)
BK: Black= GND
BN: Brown= motor supply line
BU: Blue = neutral motor and fan supply
YE: Yellow = 0-10V signal
CN: Fast-on connector
F: Protection fuse not supplied
IL: Circuit breaker (not supplied)
MV: Motor
FC66005368
All copying, even partial, of this manual is strictly forbidden 13
» 7.2 EVO BOARD + EVO DISP (on board or wall-mounted)
BK: Black = GND fan motor
BN: Brown= motor supply line
BU: Blue = neutral motor and fan supply
YE: Yellow = 0-10V signal
F: Fuse (not provided)
CN: Fast-on connector
IL: Circuit breaker (not supplied)
SU: Umidity sensor
SW: Water temperature sensor
SA: Room temperature sensor
VC/H: Water valve (hot and cold)
MV: Fan motor
ARTU
TECHNICAL MANUAL14
» 7.3 My Comfort Large (wall-mounted)
BK: Black = GND fan motor
BN: Brown= motor supply line
BU: Blue = neutral motor and fan supply
YE: Yellow = 0-10V signal
CN: Fast-on connector
IL: Circuit breaker (not supplied)
F: Fuse (not provided)
SU: Umidity sensor
SW: Water temperature sensor
SA: Room temperature sensor
MV: Fan motor
FC66005368
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» 7.4 TED10 (on-board and wall-mounted)
BK: Black = GND fan motor
BN: Brown= motor supply line
BU: Blue = neutral motor and fan supply
F: Fuse (not provided)
YE: Yellow = 0-10V signal
CN: Fast-on connector
IL: Circuit breaker (not supplied)
SW: Water temperature sensor
SA: Room temperature sensor
VC/H: Water valve (hot and cold)
MV: Fan motor
N: Neutral
L: Phase
ARTU
TECHNICAL MANUAL16
8 OVERALL DIMENSIONS
» Dimension
27 27
A
2
155155
168
15525
36
39
65
L
90
65
36
168
39
609
528
275
41
233
101
1
IN
1
OUT
2
202
111
121
136
140
90
100
400
LEGEND
1 Water connections standard heat exchanger ø 1/2"
2 Condensate discharge diameter for vertical installation ø 17 mm
Mod.
ART-U 010 616 711
ART-U 020 772 867
ART-U 030 941 1036
ART-U 040 1173 1268
ART-U 050 1307 1402
A L
mm mm
FC66005368
All copying, even partial, of this manual is strictly forbidden 17
9 ACCESSORIES
EVO - wall-mounted or remote microprocessor split controller
Composed of:
EVO BOARD: circuit board
EVO DISP: user interface with display
Main functions:
• R oom air temperature reading and adjustment
• R oom humidity reading and adjustment
• Water temperature reading (water sensor as an optional)
• Manual/automatic regulation of the fan speed with ON -OFF step and modulating control
• Automatic adjustment of valve opening with ON/OFF and modulating controller
• Manual and automatic switching of heating and cooling mode depending on the water temperature within the heat exchanger or on the room temperature,
with a selectable neutral zone
• Clock and hourly timer-programmed operation
• 3 Analogue outputs for controlling modulating evices -10V
• E conomy function and minimum temperature
• 1 D igital outputs for controlling (On/Off) external devices (novoltage contacts)
• S erial port for RS485 connection
• S erial port for OC connection
• 3 digital inputs for remote setting of ON OFF, Economy, operating modes
Operating mode
The controller is equipped with a programmable display to show and set all the functions of the hydronic unit through a dedicated interface with the parameter
description.
DISPKB - EVO DISP on-board installation kit
it consists of the bracket (same color of the cabinet) and the appropriate mounting screws.
EVOBOARD - EVO BOARD on-board installation kit
it includes a power board, a connection terminal board and appropirate mounting screws.
TED10 - on-board or wall-mounted electronic controller for BLDC fan control and one or two valves ON/OFF 230V.
Main functions:
• It suppor ts terminal units equipped with BLDC electric motor thanks to its internal 0-10 V signal generator
• for 2 and 4 pipes systems
• Manual and automatic fan speed adjustment mode
• temperature-based management of water flow enabling
TEDKB - TED on-board installation kit
it consists of the bracket (same color of the cabinet) and the appropriate mounting screws.
TED SWA - Water or air temperature sensor for controls TED
NTC resistive probe connected directly to the microprocessor control TED10, depending on connetion, it measures indifferently the temperature of the water
passing through the finned coil or the temperature of the air inlet to the fan coil.
Ventilation is disabled in heating and cooling operation mode if the detected temperature is less than 30 ° C and above 22 ° C respectively.
ARTU
TECHNICAL MANUAL18
GIVK - Insulating shell for VKS
GIVK valve insulation shell avoid forming condensate into the valve body. The water connections are provided both left and right.
V2VSTD - 2 way valve
The kit is made up of:
2-way valve/2 connections with built-in by-pass, maximum operating pressure 16 bar.
Electrothermal actuator with ON/OFF functions (total opening time 4 minutes), 230 V power supply.
Hydraulic kit for installing the valve on the heat exchanger.
Available versions with water connections on the left and on the right.
V2VSTD - 3 way valve
The kit is made up of:
3-way valve/4 connections with built-in by-pass, maximum operating pressure 16 bar.
Hydraulic kit for installing the valve on the heat exchanger, complete with 2 holders for balancing and regulating the fan coil unit.
Available versions with water connections on the left and on the right.
MYCOMFORT LARGE - wall-mounted microprocessor control having the following main features:
• R oom air temperature reading and adjustment
• R oom humidity reading and adjustment
• Water temperature reading (water probe as an optional)
• Manual and automatic adjustment of fan speed
• Manual and automatic switching of heating and cooling mode depending on the water temperature within the heat exchanger or on the room temperature,
with a neutral zone that can be selected in the range from 2° to 5°C.
• Clock and hourly timer-programmed operation
• 2 Analogue outputs for controlling modulating evices 0-10 V
• 2 D igital outputs for controlling (On/Off) external devices (novoltage contacts)
• S erial port for Bus connection
The controller is equipped with a large display (3”) to show and set all the functions of the unit.
MCSWE - water temperature sensor for microprocessor controls model EVO, MYCOMFORT
Directly connected to the microprocessor controllers EVO and MYCOMFORT to measure the water temperature through the heat exchanger.
If the temperature detected is less than 17°C, the unit will operate in the cooling mode and the controller will use the summertime temperature scale (19 - 31°C);
if the temperature detected is greater than 37°C the unit will function in the heating mode and the controller will use the wintertime temperature scale (14 /
26°C). If the temperature detected by the probe is in the range of 17°C to 37°C, the controller will inhibit operation of the fan coil unit.
MCSUE - Humidity sensor for EVO and MYCOMFORT microprocessor controller
Directly connected to the microprocessor controllers EVO and MYCOMFORT, it enables the control of the heating element ventilation (if present, as support in
heating mode) and the automatic cooling/heating changeover according to the water temperature.
BV - Water drip tray
This accessory tray is used to collect the condensate from the valve and the pressure regulator. The drip tray is reversible for both left and right version.
FC66005368
All copying, even partial, of this manual is strictly forbidden 19
10 MAINTENANCE
For safety reasons, before carrying out any maintenance or
cleaning jobs, turn o the unit by moving the fan speed selector to “O ” and putting o the main switch (0 position).
Due caution must be taken while carrying out maintenance:
some metal parts may cause injuries; wear protective gloves.
ART-U type fan coils do not have particular maintenance requirements: it is sucient to periodically clean the air lter.
A running in period of 100 hours is necessary to eliminate all initial mechanical friction of the motor.
Start-up should be carried out at the maximum operating speed.
To assure that the ART-U fan coil units perform eciently, abide
by the following indications:
keep the air lter clean
10.1 CLEANING THE AIR FILTER
Clean the air lter at least once a month and in any case at the
start of the period of use (before the heating and the air conditioning season).
To clean the air lter proceed as follows:
1. Unscrew the two M5 screws that block the lter by pulling
it out of its housing and freeing it from the magnets (use a
Phillips screwdriver, maximum length 8 cm).
2. Clean it with warm water (in the event of dry dust build-up,
using compressed air).
» Air filter
do not pour liquids inside the equipment;
do not introduce metal parts through the air outlet (upper)
grill and through the frontal grill;
avoid obstructing the air outlet or intake
Whenever starting up the unit after it has not been used for a
long time, check that there is no air in the heat exchanger.
Before the period of operation in the cooling mode, check that
condensate is properly drained and that the heat exchanger ns
are not obstructed by impurities.
Clean as necessary using compressed air or low pressure steam,
taking care not to damage the ns.
Adequate periodic maintenance will ensure save both energy and cost savings.
3. After allowing it to dry, t the lter back in place.
4. Once the lter has been repositioned, x it again with the
two M5 screws.
WARNING: THE FILTER MUST ALWAYS BE SECURED IN PLACE
WITH THE SCREWS PROVIDED TO PREVENT ACCIDENTAL
CONTACT WITH THE FAN.
It is recommended to replace the air lter once a year, using an
original replacement lter; the indoor unit model is specied on
the identication plate on the inside of the side panel.
10.2 CLEANING THE HEAT EXCHANGER
It is advisable to check the condition of the exchangers before the start of every period of use and to make sure that the ns are not
obstructed by dirt.
10.3 CLEANING THE CABINET
Use a soft cloth
Never pour liquids onto the unit, as this could cause electri-
cal discharges and damage the internal components.
Never use harsh chemical solvents.
WARNING: The appliance is not to be used by children or
person with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have
ARTU
TECHNICAL MANUAL20
been given supervision or instruction. Children being supervised not to play with appliance.
via Romagnoli 12/a
40010 Bentivoglio (BO) - Italy
Ph. +39 051/8908111
- Fax +039 051/8908122
UNI EN ISO 9001 et OHSAS 18001
www.galletti.com
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