TECHNICAL MANUAL
VEC
COANDA EFFECT FAN COIL
IVECTY
0906
5074502_01
Replace : 5074502_00 / 0904
3
English
DECLARATION OF CONFORMITY
Transport • Safety symbols
Important information
Description • Versions
Description of components • Selection criteria
System configuration
Technical data
Operating limits
Cooling capacity
Heating capacity (3R)
Heating capacity BV (1R)
Coil pressure drops
Correction factors in operation using glycol water
Capacity and sound pressure
Accessories
Installation
Size data
Wiring diagrams
Troubleshooting • Maintenance
INDEX
Store the manuals in a dry location to avoid deterioration, as
they must be kept for at least 10 years for any future reference.
Carefully and thoroughly read all the information referred to
in this manual. Pay particular attention to the instructions for
use accompanied by the words “DANGER” or “WARNING”
because, if they are not complied with, the machine/property
can damaged and/or people can be injured.
If any kind of malfunction is not included in this manual, contact the local After Sales Service immediately.
The device must be installed in such a way that maintenance
and/or repair operations are possible.
The device warranty does not in any case cover costs due to
automatic ladders, scaffolding or other lifting systems
necessa-
ry for carrying out repairs under guarantee.
The normal wear of the components and filter is not covered
by the warranty.
AERMEC S.p.A. declines all liability
for any damage due to
improper use of the machine, or the partial or superficial reading of the information contained in this manual.
This manual contains the following number of pages: 40
REMARKS
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VEC
Bevilacqua, 02/03/2009 La Direzione Commerciale – Sales and Marketing Director
Luigi Zucchi
AERMEC S.p.A.
I-37040 Bevilacqua (VR) Italia – Via Roma, 996
Tel. (+39) 0442 633111
Telefax (+39) 0442 93730 – (+39) 0442 93566
www .aermec. com - info @aermec. com
DICHIARAZIONE DI CONFORMITÀ
Noi, fi rmatari della presente, dichiariamo sotto la nostra esclusiva
responsabilità, che il prodotto:
VENTILCONVETTORE
serie VEC
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 61000-6-3
soddisfando così i requisiti essenziali delle seguenti direttive:
- Direttiva LVD 2006/95/CE
- Direttiva compatibilità elettromagnetica 2004/108/CE
VEC APC 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
VEC series
to which this declaration refers, complies with the following standardised
regulations:
- EN 60335-2-40
- EN 55014-1
- EN 55014-2
- EN 61000-6-1
- EN 61000-6-3
thus meeting the essential requisites of the following directives:
- Directive LVD 2006/95/CE
- EMC Electromagnetic Compatibility Directive 2004/108/CE
VEC APC 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
produit:
VENTILO-CONVECTEURS
série VEC
auquel cette déclaration fait référence, est conforme aux normes
harmonisées suivantes:
- EN 60335-2-40
- EN 55014-1
- EN 55014-2
- EN 61000-6-1
- EN 61000-6-3
satisfaisant ainsi aux conditions essentielles des directives suivantes:
- Directive LVD 2006/95/CE
- Directive compatibilité électromagnétique 2004/108/CE
VEC APC 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
Verantwortung, dass das Produkt:
GEBLÄSEKONVEKTOR
der Serie VEC
auf das sich diese Erklärung bezieht, den folgenden harmonisierten
Normen entspricht:
- EN 60335-2-40
- EN 55014-1
- EN 55014-2
- EN 61000-6-1
- EN 61000-6-3
womit die grundlegenden Anforderungen folgender Richtlinien erfüllt
werden:
- Richtlinie LVD 2006/95/CE
- Richtlinie zur elektromagnetischen Verträglichkeit 2004/108/CE
VEC APC + 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, defi nido como sigue:
FAN COIL
serie VEC
al que esta declaración se refi ere, está en conformidad a las siguientes
normas armonizadas:
- EN 60335-2-40
- EN 55014-1
- EN 55014-2
- EN 61000-6-1
- EN 61000-6-3
al que esta declaración se refi ere, está en conformidad a las siguientes
normas armonizadas:
- Directiva LVD 2006/95/CE
- Directiva compatibilidad electromagnétic 2004/108/CE
VEC APC CON ACCESORIOS
Está prohibido poner en marcha el producto con accesorios
no suministrados por Aermec.
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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 posizione della freccia per
conoscere il numero di macchine impilabili.
Stacking: control the packing for the arrow position to know the num-
ber of machines that can be stacked.
Empilement: vérifier sur l’emballage la position de la flèche pour con-
naître le nombre d’appareils pouvant être empilés.
Stapelung: Anhand der Position des Pfeiles an der Verpackung kontrol-
lieren, wieviele Geräte stapelbar sind.
Apilamiento: observe en el embalaje la posición de la flecha para saber
cuántos equipos pueden apilarse.
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
6
English
The fan coils are shipped in standard package which consists of expanded polystyrene foam and cardboard shells.
PACKAGING
Consult control panel manual for installation and use instructions.
USE
WARNING: electrical wirings, installation of the fan coils and relevant accessories should be performed by a technician who has the necessary technical
and professional expertise to install,
modify, extend and maintain systems,
and who is able to check the systems
for the purposes of safety and correct
operation.
WARNING: the fan coil is connected to
the power supply and a water circuit.
Any operation by persons who do not
possess the required technical skills can
lead to personal injury to the operator
or damage to the unit and surrounding
objects.
WARNING:before carrying out any
work, wear the proper personal protective equipment.
WARNING: the appliance must be fitted
according to the national regulations on
process plant engineering.
WARNING: check that the power supply is disconnected before carrying out
any procedures on the unit.
WARNING: install a device, main
switch or plug which allows to completely cut off the power supply from the
unit.
WARNING! DANGER! Any use of the
unit not expressly indicated by Aermec
is strictly prohibited.
MALFUNCTIONS
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.
POWER THE FAN COIL ONLY WITH
230 VOLT, SINGLE PHASE, 50 Hz
Any other type of power supply could
permanently damage the fan coil.
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 outlet
slots.
This could injure people and damage
the fan.
DO NOT USE THE FAN COIL
IMPROPERLY
Do not use the fan coil for animal
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 maximum
comfort to the people in the room,
especially if they are elderly, children
or sick people; avoid differences over
7°C between the outdoor temperature
and the temperature inside the room in
summer.
Carefully choose the room temperature
so as to save energy.
CORRECT AIR JET AIMING
ADJUSTMENT
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.
DO NOT USE EXCESSIVELY HOT
WATER
To clean the indoor unit, use soft cloths
or sponges dampened with water at a
maximum of 40°C. Do not use chemical
products or solvents to clean any part of
the fan coil. Do not spray water on the
outer or inner surfaces of the fan coil (it
might cause short circuits).
CLEAN THE FILTER FREQUENTLY
Cleaning the filter frequently guarantees
enhanced operating efficiency.
Check whether the filter is very dirty: if it
is, clean it more often.
Clean frequently; remove the accumulated dust with a vacuum cleaner.
Once the filter is clean, refit it to the fan
coil following the removal instructions
but in reverse order.
The normal wear and tear of germicidal
lamps and filter is not covered by the
warranty.
SUPPLEMENTARY CLEANING
The possibility to remove the basin and
the shrouds of the examinable fans (done
only by suitably trained and qualified
personnel) allows to thoroughly clean
even the internal parts - an essential condition when the unit is installed in very
crowded areas or places requiring high
standards of hygiene.
WHAT IS NORMAL
In the cooling function, water vapour
may be present in the air delivery of the
fan coil.
In the heating function, 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 substances present in the air
of the room (clean the filter more often,
especially if the room is not ventilated
regularly).
While the unit is functioning, there
could be noises and creaks inside
the device due to the various thermal
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
temperature is exceeded.
IMPORTANT INFORMATION
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Fan coil for treating air both in winter and summer.
The air is distributed throughout the room via outlets which, thanks to the COANDA effect, draw the air jet towards the ceiling.
Install the unit on the suspended ceiling.
AVAILABLE VERSIONS AND SIZES
VEC fan coils are available in:
4 sizes with a 3 -row coil compulsory accessory
VEC 20 VEC 20 GL
VEC 30 VEC 30 GL
VEC 40 VEC 40 GL
VEC 50 VEC 40 GL
DESCRIPTION OF THE UNIT
VEC 20
VEC 20 GL
System types
The VEC fan
coils are designed for systems with 2 and 4 pipes, in the versions:
- without valve;
- with 3-way water valve
(VCF);
- with 2-way water valve for variable flow rate systems (VCFD);
- with electric heater (RX);
- with electric heater (RX) and valve (VCF/VCFD);
- with hot water coil for systems with 4 pipes (BV) and 2 valves (VCF/VCFD).
Each configuration requires a control panel that manages the functions and accessories installed.
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English
CON TROL PA NEL
The control panel (accessory) can only
be installed on the wall.
The AERMEC fan coil versions without
a control panel can all be combined
with the HSH AERDOMUS centralised
control system, using wired or wireless
connections.
Consult the control panel characteristics before selecting a panel.
ELECTRIC FAN ASSEMBLY
This consists of double suction centrifugal fans with lengthways blades to
obtain a high air flow with a low number of revs. The electrical motor, protected against overloading, has three speeds with the running capacitor always
on, directly coupled with the fans and
cushioned with flexible supports.
BEARING STRUCTURE
Made of galvanised sheet metal of an
adequate thickness. Hole in the back
for wall mounting. A fan cover panel is
available for front-mounted ceiling units.
Each unit is equipped with a condensate
collection tray.
CONDENSATE DRAIN
Every device is fitted with a tray for collecting condensation, with a connection
for draining condensation produced by
the unit in cooling mode. When there
are differences in levels, it is possible
to apply the accessory (DSC4) outside
the unit, complete with pump and water
level control device.
PLUMBING CONNECTIONS
The connections, located on the left
hand side, are female. The coil may also
be rotated.
DESCRIPTION OF COMPONENTS
SELECTION CRITERIA
The Coanda effect fan coil of the VEC
range must be installed in suspended
ceilings and is completed with the obligatory accessory VEC20GL.
The accessory VEC20GL consists of
the panel with suction from below and
delivery with adjustable diffusers that
allow the air to be distributed throughout the room, taking advantage of the
COANDA effect.
VEC must be combined with a control panel to be mounted on the wall.
Consult the characteristics and compatibility of the control panels supplied as
an accessory.
Some control panels can control a
network of fan coils if they are used in
combination with the interface cards
SIT3 and SIT5 supplied as accessories.
The AERMEC fan coil versions without
a control panel can all be combined
with the HSH AERDOMUS centralised
control system, using wired or wireless
connections.
The main technical data of the VEC fan
coils are summarised in the tables.
The table shows the sensible and total
refrigerating yield at maximum speed,
on the basis of the inlet water temperature, its temperature change, and the
dry bulb and wet bulb air temperature,
for sensitive yield and total yield respectively, for versions with a 3-row coil.
Performance levels at average and minimum speed are obtained by multiplying
the values by the correction factors indicated.
The water side pressure drops are
shown in the diagrams.
The correction factors when the unit
operates with glycol water for cooling
and heating function modes are shown
in the graphs in percentages of glycol of
10%, 20% and 35%.
The heating capacity yield, on the
basis of the water flow rate and the
difference in temperature between the
incoming water and the incoming air, is
represented in a graph and refers to the
maximum speed. Performance levels at
average and minimum speed are obtained by multiplying the values shown on
the graph (at maximum speed) by the
correction factors indicated.
The pressure level and sound output
of the fan coils at the various speeds are
shown in the tables.
The installation information is included in the manuals supplied together
with each fan coil or its accessory. This
manual is limited to provide general
information in order to obtain a correct
installation; it also contains drawings
with fan coil dimensions and the wiring
diagrams with the connections to control panels.
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System with 2 pipes, with water sensor
SW Water temperature sensor
VCF Solenoid valve (Heating / Cooling)
VC Solenoid valve (Heating)
VF Solenoid valve (Cooling)
SA Room temperature sensor
V3,V2,V1 Maximum, Average or Minimum fan speed
RX Electric heater
CONFIGURATIONS FOR SYSTEMS WITH VEC
System with 2 pipes, without water sensor
System with 4 pipes, with water sensor System with 4 pipes, without water sensor
Key:
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English
TECHNICAL DATA
Performance values refer to the following conditions:
Sound pressure measured in semi-reverberating chamber, 85m3,
and with reverberation time Tr = 0.5s.
Cooling:
- room air temperature 27°C D.B., 19°C W.B.;
• maximum speed:
- water inlet temperature 7°C; Δt water 5°C.
• average and minimum speed:
- water inlet temperature 7°C;
- water flow rate as at maximum speed.
Heating:
room air temperature 20°C D.B.;
• maximum speed:
- water inlet temperature 50°C; Δt water 10°C.
- water flow rate as for cooling operation.
• average and minimum speed:
- water inlet temperature 50°C;
- water flow rate as at maximum speed.
Mod.
Heating
Heating capacity
Electric heater heating capacity
Cooling
Total cooling capacity
Sensible cooling capacity
Water flow rate
Water pressure drop
air flow rate
Number of fans
Sound pressure
Sound power
Water contents
Max. motor power
Max. input current
Max. motor power
with electric heater
Input current
with electric heater
Coil connections 3R
Coil connections 1R
Power supply
VEC with a 3-row coil
VEC 20 VEC 30 VEC 40 VEC 50
W (max) 1835 2770 3745 4285
W (med) 1505 2340 3105 3785
W (min) 1105 1950 2505 2840
W 950 1300 1650 1950
W (max) 1320 1950 2985 3610
W (med) 1085 1645 2470 3170
W (min) 805 1370 1985 2350
W (max) 1085 1535 2410 2595
W (med) 885 1285 1980 2275
W (min) 640 1055 1580 1680
l/h 227 335 514 621
kPa 4,6 13,3 11,3 14,8
m
3
/h (max) 247 383 511 613
m
3
/h (med) 194 309 406 529
m
3
/h (min) 130 241 306 371
n. 1 2 2 2
dB (A) (max) 39,5 36,5 40,0 44,5
dB (A) (med) 33,5 31,5 34,5 41,5
dB (A) (min) 26,5 26,5 29,5 34,5
dB (A) (max) 48,0 45,0 48,5 53,0
dB (A) (med) 42,0 40,0 43,0 50,0
dB (A) (min) 35,0 35,0 38,0 43,0
l 0,79 1,11 1,48 1,48
W 25 44 57 67
A 0,12 0,21 0,28 0,35
W
975 1344 1707 2017
A
4,25 5,86 7,45 8,83
ø 1/2" 1/2" 3/4" 3/4"
ø 1/2" 1/2" 1/2" 1/2"
230V ~ 50Hz
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MINIMUM AVERAGE WATER TEMPERATURE
Temperature of the air in the room with dry bulb °C
21 23 25 27 29 31
15 3 3 3 3 3 3
Temperature of the air in the room 17 3 3 3 3 3 3
with wet bulb °C 19 3 3 3 3 3 3
21 6 5 4 3 3 3
23 - 8 7 6 5 5
If the fan coil is working in cold
continuous mode inside an environment
where the relative humidity is high,
condensate might form on the air
delivery. 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 conditions of the air in the room.
The limits mentioned above refer to
operation while the fan is set
to its minimum speed level.
In the event of prolonged fan inactivity
and with cold water passing through the
coil, condensate may form on the external case of the unit. As a result, we rec-
ommend including the three-way valve
accessory.
OPERATING LIMITS
In order to prevent air stratification
in the room, and therefore to achieve
improved mixing, it is obligatory 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.
Maximum water input temperature ........................... 65°C
Maximum operating pressure ..................................... 8 bar
Operating voltage ..............................230V(±10%) ~ 50Hz
Room temperature .................................................. 0-40°C
Air humidity ..................................................... <85% U.R.
Output limits (3-row coil):
MOD. VEC 20 30 40 50
Minimum output [l/h] 100 100 150 150
Maximum output [l/h] 750 750 1100 1100
Minimum average water temperature
Water temperature
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English
COOLING CAPACITY
The cooling capacities yielded shown in the table must be multiplied by the following factors:
MOD. VEC 20
Maximum speed
total power
1.00
sensible power
1.00
Average speed
total power
0.82
sensible power
0.82
Minimum speed
total power
0.61
sensible power
0.59
VEC20 TOTAL COOLING CAPACITY [W] SENSIBLE COOLING CAPACITY [W]
Water temp. °C Wet bulb air temperature [°C] Dry bulb air temperature [°C]
Inlet t 15 17 19 21 23 21 23 25 27 29 31
5
3 1089 1523 1984 – – 932 1096 1255 1391 1525 1655
4 977 1390 1839 2299 2783 851 1017 1181 1323 1460 1595
5 834 1207 1666 2147 2643 756 917 1082 1251 1395 1532
6 762 1027 1476 1980 2487 712 836 984 1157 1322 1464
7 – 923 1264 1785 2315 672 794 904 1056 1231 1392
6
3 955 1368 1836 2299 – 858 1019 1183 1322 1459 1587
4 847 1221 1687 2147 2635 766 935 1096 1253 1392 1527
5 737 1054 1497 1987 2487 688 836 1000 1167 1325 1463
6 686 893 1301 1815 2323 649 772 908 1075 1244 1395
7 – 832 1097 1594 2144 611 735 848 979 1150 1321
7
3 834 1207 1666 2147 – 774 933 1104 1253 1390 1519
4 740 1062 1513 1987 2479 685 855 1019 1181 1324 1458
5 660 909
1320
1823 2323 629 760 924
1085
1253 1396
6 622 799 1126 1620 2152 589 712 834 997 1160 1324
7 – 745 974 1405 1964 549 670 792 907 1070 1242
8
3 737 1054 1497 1987 – 695 860 1019 1180 1320 1454
4 658 920 1331 1823 2315 613 780 939 1103 1251 1391
5 601 793 1154 1639 2155 568 688 850 1005 1173 1325
6 – 719 985 1430 1976 528 649 772 918 1081 1251
7 – – 875 1223 1757 488 609 734 846 988 1161
9
3 660 909 1344 1823 – 625 779 944 1103 1250 1384
4 590 798 1156 1653 2147 547 694 861 1020 1181 1322
5 542 689 1001 1443 1980 508 627 768 928 1094 1255
6 – 649 850 1250 1777 467 589 711 845 1004 1170
7 – – 782 1054 1551 426 549 670 791 916 1076
10
3 601 793 1154 1639 2155 554 699 863 1018 1179 1317
4 522 700 998 1454 1972 485 622 785 939 1103 1252
5 – 627 860 1261 1793 446 567 691 857 1014 1177
6 – – 755 1075 1566 406 528 648 774 929 1089
7 – – – 926 1357 363 488 609 735 847 1000
11
3 – 688 1001 1443 1980 482 629 781 943 1100 1246
4 – 630 861 1261 1788 425 550 701 863 1021 1180
5 – 568 752 1089 1580 386 507 627 777 934 1096
6 – – 675 934 1368 344 467 589 711 853 1007
7 – – – 821 1170 299 426 549 669 791 926
12
3 – 627 860 1261 1793 409 558 704 865 1017 1175
4 – 561 752 1097 1585 364 485 630 788 941 1102
5 – – 663 944 1376 324 446 567 699 862 1016
6 – – 617 808 1188 282 406 528 648 778 936
7 – – – 739 1006 233 363 488 609 732 852
13
3 – 568 752 1089 1580 343 487 633 784 943 1096
4 – – 671 931 1374 303 424 558 708 865 1019
5 – – 597 810 1188 262 385 506 630 784 936
6 – – – 709 1016 215 344 467 587 711 860
7 – – – – 869 158 299 426 549 669 789
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