Frico AR3510W User manual

Original instructions
AR3500
.... 14
SE
.... 48
PL
.... 33
FR
.... 23
NO .... 28 FI
.... 43
RU
.... 19
GB
.... 38
DE .... 58 NL
.... 53
IT
.... 63
ES

AR3500
2
Introduktionssidorna består huvudsakligen av bilder. För översättning av de
engelska texter som används, se respektive språksidor.
SE
The introduction pages consist mainly of pictures. For translation of the
English texts used, see the respective language pages.
GB
Introduksjonssidene består hovedsakelig av bilder. For oversettelse av de
engelske tekstene, se de respektive språksidene
NO
Les pages de présentation contiennent principalement des images. Consulter
la page correspondant à la langue souhaitée.
FR
Die Einleitungsseiten bestehen hauptsächlich aus Bildern. Für die Übersetzung
der verwendetenTexte in englischer Sprache, siehe die entsprechenden
Sprachseiten.
DE
Las páginas introductorias contienen básicamente imágenes. Consulte la
traducción de los textos en inglés que las acompañan en las páginas del
idioma correspondiente.
ES
De inleidende pagina's bevatten hoofdzakelijk afbeeldingen. Voor een vertaling
van de gebruikte Engelse teksten, zie de pagina's van de resp. taal.
NL
Le pagine introduttive contengono prevalentemente immagini. Per le
traduzioni dei testi scritti in inglese, vedere le pagine nelle diverse lingue.
IT
Początkowe strony zawierają głównie rysunki. Tłumaczenie wykorzystanych
tekstów angielskich znajduje się na odpowiednich stronach językowych.
PL
RU Страницы в начале Инструкции состоят в основном из рисунков, схем и
таблиц. Перевод встречающегося там текста приведен в разделе RU.

A
302
B
C
638
523
595
325
532
D
Type A
[mm]
B
[mm]
C
[mm]
D
[mm]
AR3510 1057 1016 1067 956
AR3515 1567 1526 1577 1466
AR3520 2073 2031 2083 1971
AR3500
3
Mounting
Fig. 1:The mounting brackets on delivery.

AR3500
4
Fig. 2a: Mounting on threaded bars.
Mounting
Fig. 2b: Mounting on threaded bars inside unit.

SIRe
Fig. 3: Function of the snap fixing
90°
AR
Service hatch
Fig. 5: SIRe inside unit.
SIRe
AR3500
5
Water connections
Fig. 4:The water coil is connected inside the unit through holes which are made (during installation) on the
upper side or through the side of the unit, possible places are marked with punch marks.
Type L
[mm]
AR35XTT10 130-210
AR35XTT15 130-210
AR35XTT20 130-210
Accessories
See separate manual for AR35XTT

SIReB
SIReAC
SIReAA
SIReRTX 70x33x23 mm
SIReUR 114x70x50 mm
SIReWTA
SIReCJ4
SIReCJ6
SIReCC603 3 m
SIReCC605 5 m
SIReCC610 10 m
SIReCC615 15 m
SIReCC640 40 m
SIReCC403 3 m
SIReCC405 5 m
SIReCC410 10 m
SIReCC415 15
Accessories
SIRe
C
SIReB
SIReAC/SIReAA
SIReRTX
SIReUR
SIReWTA
SIReCC
SIReCJ4/SIReCJ6
VKF15LF DN15
VKF15NF DN15
VKF20 DN20
VKF25 DN25
VKF32 DN32
SD230
BPV10
SDM24
ST23024
VKF
SDM24 ST23024
SD230 BPV10
VKF
VLSP
VLP
AR3500
6

Transformer
230V
200V
170V
145V
120V
100V
N
Blue
Black
AR3520A/W AR3515A/W
SIReB1
AR3510A/W
AR3500 A
AR3500 W
AR3500
7

AR3500 E
L1 L2LN L3
Black
Grey
Blue
Transformer
230V
200V
170V
145V
120V
100V
N
Blue
Black
AR3520E18 AR3515E14
SIReB1
AR3510E09
400V3~
230V~
AR3510E09/3515E14 AR3520E18
AR3500
8

SIReB Basic
AR3500 A / AR3500 E
Wiring diagrams for SIReAC Competent, see manual for SIRe.
C2
X5
C1
X4
ROOM
X3
Pot.
Unit ID ACTUATORSUPPLY
N L NL
PE
L
~
230V~
C2
X5
C1
X4
ROOM
X3
Pot.
Unit ID ACTUATORSUPPLY
N L NL
PE
L
~
230V~
C2
X5
C1
X4
ROOM
X3
Pot.
Unit ID ACTUATORSUPPLY
N L NL
PE
L
~
230V~
SIReCC6XX (max 50 m)
SIReCC6XX
(max 50 m)
SIReCC6XX
(max 50 m)
SIReUB1
SIReRTX
(optional)
L=2m
SIReB1/B2/B1EC
SIReB1/B2/B1EC
SIReB1/B2/B1EC
AR3500
9

Wiring diagrams for SIReAC Competent and SIReAA Advanced, see manuals for SIRe.
SIReB Basic
AR3500 W
C2
X5
C1
X4
ROOM
X3
Pot.
Unit ID ACTUATORSUPPLY
N L NL
PE
L
~
230V~
C2
X5
C1
X4
ROOM
X3
Pot.
Unit ID ACTUATORSUPPLY
N L NL
PE
L
~
230V~
C2
X5
C1
X4
ROOM
X3
Pot.
Unit ID ACTUATORSUPPLY
N L NL
PE
L
~
230V~
SIReCC6XX (max 50 m)
SIReB1/B2/B1EC
SIReB1/B2/B1EC
SIReB1/B2/B1EC
SIReCC6XX
(max 50 m)
SIReCC6XX
(max 50 m)
SIReUB1
SIReRTX
(optional)
SD230
SD230
SD230
L=1,5m
L=2m
AR3500
10

– = at the current water temperatures and airflows, the air outlet temperature will be less than 35 °C.
*1) Recommended outlet air temperature for good comfort and optimized output.
*2) Nominal output at given supply and return water temperature.
AR3500
11
Supply water temperature:80 °C
Room temperature: +18 °C
Outlet air temperature: +35 °C*1
Water temperature: 80/60 °C
Room temperature: +18 °C
Type Fan
position
Airflow
[m3/h]
Output
[kW]
Return water
temp.
[°C]
Water
flow
[l/s]
Pressure
drop
[kPa]
Output *2
[kW]
Outlet
air temp.
[°C]
Water
flow
[l/s]
Pressure
drop
[kPa]
AR3510W max 2300 13,4 48 0,10 4,2 16,4 38,8 0,2 14,7
min 110 0 6,2 36 0,03 0,6 10,1 45,6 0,12 5,8
AR3515W max 3400 19,8 46 0,14 2,7 25,1 39,6 0,31 11,5
min 1550 9,2 36 0,05 0,4 15 46,4 0,18 4,4
AR3520W max 4800 28,6 46 0,21 6,3 36,4 40,2 0,45 24,6
min 2200 12,8 35 0,07 1,0 21,6 46,8 0,26 9,7
Supply water temperature:70 °C
Room temperature: +18 °C
Outlet air temperature: +35 °C*1
Water temperature: 70/50 °C
Room temperature: +18 °C
Type Fan
position
Airflow
[m3/h]
Output
[kW]
Return water
temp.
[°C]
Water
flow
[l/s]
Pressure
drop
[kPa]
Output *2
[kW]
Outlet
air temp.
[°C]
Water
flow
[l/s]
Pressure
drop
[kPa]
AR3510W max 2300 13,0 50 0,16 10,1 12,9 34,4 0,16 9,4
min 110 0 6,2 39 0,05 1,1 7, 9 39,8 0,10 3,8
AR3515W max 3400 19,9 50 0,25 7, 9 19,7 35 0,24 7, 4
min 1550 8,9 38 0,07 0,7 11,9 40,4 0,14 2,8
AR3520W max 4800 27,1 47 0,29 11,8 28,7 35,5 0,35 16,4
min 2200 12,7 38 0,10 1,7 17 40,7 0,21 6,5
Supply water temperature: 60 °C
Room temperature: +18 °C
Outlet air temperature: +35 °C*1
Water temperature: 60/40 °C
Room temperature: +18 °C
Type Fan
position
Airflow
[m3/h]
Output
[kW]
Return water
temp.
[°C]
Water
flow
[l/s]
Pressure
drop
[kPa]
Output *2
[kW]
Outlet
air temp.
[°C]
Water
flow
[l/s]
Pressure
drop
[kPa]
AR3510W max 2300 - - - - 9,4 29,9 0,11 5,2
min 110 0 6,2 42 0,09 3,1 5,8 33,8 0,07 2,1
AR3515W max 3400 - - - - 14,4 30,4 0,17 4,1
min 1550 9,2 42 0,13 2,3 8,6 34,3 0,10 1,6
AR3520W max 4800 - - - - 20,8 30,7 0,25 9,5
min 2200 12,8 41 0,17 4,5 12,4 34,5 0,15 3,8
Supply water temperature: 55 °C
Room temperature: +18 °C
Outlet air temperature: +35 °C*1
Water temperature: 55/35 °C
Room temperature: +18 °C
Type Fan
position
Airflow
[m3/h]
Output
[kW]
Return water
temp.
[°C]
Water
flow
[l/s]
Pressure
drop
[kPa]
Output *2
[kW]
Outlet
air temp.
[°C]
Water
flow
[l/s]
Pressure
drop
[kPa]
AR3510W max 2300 - - - - 7, 6 27,7 0,09 3,6
min 110 0 6,4 46 0,17 11,4 4,7 30,8 0,06 1,5
AR3515W max 3400 - - - - 11,6 28 0,14 2,8
min 1550 9 44 0,19 5,1 7 31,2 0,08 1,1
AR3520W max 4800 - - - - 16,8 28,3 0,20 6,6
min 2200 13 44 0,28 11,5 10 31,3 0,12 2,7
Output charts water AR3500
AR3500W Standard coil

– = at the current water temperatures and airflows, the air outlet temperature will be less than 35 °C.
*1) Recommended outlet air temperature for good comfort and optimized output.
*2) Nominal output at given supply and return water temperature.
AR3500
12
Supply water temperature:55 °C
Room temperature: +18 °C
Outlet air temperature: +35 °C*1
Water temperature: 55/35 °C
Room temperature: +18 °C
Type Fan
position
Airflow
[m3/h]
Output
[kW]
Return water
temp.
[°C]
Water
flow
[l/s]
Pressure
drop
[kPa]
Output *2
[kW]
Outlet
air temp.
[°C]
Water
flow
[l/s]
Pressure
drop
[kPa]
AR3510WLL max 2300 10,7 29 0,10 1,2 14,3 36,2 0,17 3,1
min 110 0 5,3 29 0,05 0,4 8,2 39,8 0,10 1,2
AR3515WLL max 3400 16,2 28 0,15 1,6 22,2 37,2 0,27 4,8
min 1550 7, 6 28 0,07 0,4 12,3 41,2 0,15 1,7
AR3520WLL max 4800 22,7 28 0,20 1,5 31,1 37 0,38 4,5
min 2200 10,6 27 0,09 0,4 1 7, 3 41 0,21 1,0
Supply water temperature:50 °C
Room temperature: +18 °C
Outlet air temperature: +35 °C*1
Water temperature: 50/30 °C
Room temperature: +18 °C
Type Fan
position
Airflow
[m3/h]
Output
[kW]
Return water
temp.
[°C]
Water
flow
[l/s]
Pressure
drop
[kPa]
Output *2
[kW]
Outlet
air temp.
[°C]
Water
flow
[l/s]
Pressure
drop
[kPa]
AR3510WLL max 2300 10,8 30 0,13 2,0 10,7 31,6 0,13 1,9
min 110 0 5,3 29 0,06 0,5 6 33,9 0,07 0,7
AR3515WLL max 3400 16,4 29 0,19 2,7 17 32,6 0,21 3
min 1550 7, 5 27 0,08 0,6 9,3 35,5 0,11 1
AR3520WLL max 4800 22,9 29 0,27 2,5 23,7 32,5 0,29 2,8
min 2200 10,7 27 0,11 0,6 13,1 35,4 0,16 1
Supply water temperature: 45 °C
Room temperature: +18 °C
Outlet air temperature: +35 °C*1
Water temperature: 45/35 °C
Room temperature: +18 °C
Type Fan
position
Airflow
[m3/h]
Output
[kW]
Return water
temp.
[°C]
Water
flow
[l/s]
Pressure
drop
[kPa]
Output *2
[kW]
Outlet
air temp.
[°C]
Water
flow
[l/s]
Pressure
drop
[kPa]
AR3510WLL max 2300 11,0 32 0,20 4,3 12,4 33,8 0,30 8,5
min 110 0 5,2 29 0,08 0,8 7, 1 36,9 0,17 3,1
AR3515WLL max 3400 16 30 0,26 4,7 19,1 34,4 0,46 12,7
min 1550 7, 6 28 0,11 1 10,4 37,7 0,25 4,3
AR3520WLL max 4800 22,3 30 0,37 4,5 26,7 34,3 0,64 11,9
min 2200 10,7 28 0,15 0,9 14,7 37,5 0,35 4,1
Supply water temperature: 40 °C
Room temperature: +18 °C
Outlet air temperature: +35 °C*1
Water temperature: 40/30 °C
Room temperature: +18 °C
Type Fan
position
Airflow
[m3/h]
Output
[kW]
Return water
temp.
[°C]
Water
flow
[l/s]
Pressure
drop
[kPa]
Output *2
[kW]
Outlet
air temp.
[°C]
Water
flow
[l/s]
Pressure
drop
[kPa]
AR3510WLL max 2300 11,3 35 0,55 25,2 9,2 29,7 0,22 5,1
min 110 0 5,2 30 0,13 1,9 5,2 32 0,13 1,9
AR3515WLL max 3400 15,8 32 0,51 15,4 14,2 30,3 0,34 7, 7
min 1550 7, 3 29 0,15 1,9 7, 8 32,8 0,19 2,7
AR3520WLL max 4800 22,2 32 0,71 14,5 19,9 30,2 0,48 7, 2
min 2200 10,3 29 0,22 1,8 11 32,7 0,27 2,5
Output charts water AR3500
AR3500WLL Special coil

AR3500
13
Protection class: IP20.
Approved by SEMKO and CE compliant.
*1) Lowest/highest airflow of totally 5 fan steps.
*2) Sound power (LWA) measurements according to ISO 27327-2: 2014, Installation type E.
*3) Sound pressure (LpA). Conditions: Distance to the unit 5 metres. Directional factor: 2. Equivalent
absorption area: 200 m². At lowest/highest airflow.
*4) ∆t = temperature rise of passing air at maximum heat output and lowest/highest airflow.
*5) Applicable at water temperature 60/40 °C, air temperature, in +18 °C.
*6) Applicable at water temperature 40/30 °C, air temperature, in +18 °C.
1Ambient, no heat - AR3500 A
Type Output
[kW]
Airflow*1
[m3/h]
Sound
power*2
[dB(A)]
Sound
pressure*3
[dB(A)]
Voltage
Amperage
(control)
Length
[mm]
Weight
[kg]
AR3510A 0 1100/2300 78 42/62 230V~/2,45 A 1057 38
AR3515A 0 1550/3400 79 43/63 230V~/3,5 A 1567 51
AR3520A 0 2200/4800 80 45/64 230V~/5,2 A 2073 70
3Electrical heat - AR3500 E
Type Output
steps
[kW]
Airflow*1
[m3/h]
∆t*4
[°C]
Sound
power*2
[dB(A)]
Sound
pressure*3
[dB(A)]
Voltage
Amperage
(control)
Voltage
Amperage
(heat)
Length
[mm]
Weight
[kg]
AR3510E09 4,5/9 1100/2300 25/12 77 42/62 230V~/2,45 A 400 V3~/13 A 1057 42
AR3515E14 7/13,5 1550/3400 27/13 78 43/63 230V~/3,5 A 400 V3~/19,5 A 1567 61
AR3520E18 9/18 2200/4800 25/11 79 45/64 230V~/5,2 A 400 V3~/26 A 2073 79
2Water heat - AR3500 W
Type Output*5
[kW]
Airflow*1
[m3/h]
∆t*4,5
[°C]
Water
volume
[l]
Sound
power*2
[dB(A)]
Sound
pressure*3
[dB(A)]
Voltage
[V]
Amperage
[A]
Length
[mm]
Weight
[kg]
AR3510W 9,4 1100/2300 16/12 1,3 77 42/61 230V~ 2,6 1057 42
AR3515W 14 1550/3400 16/12 2,1 78 42/62 230V~ 3,6 1567 58
AR3520W 21 2200/4800 16/13 2,9 79 44/63 230V~ 5,3 2073 76
2Water heat - AR3500 WLL, coil for very low temperature water (460 °C)
Type Output*6
[kW]
Airflow*1
[m3/h]
∆t*4,6
[°C]
Water
volume
[l]
Sound
power*2
[dB(A)]
Sound
pressure*3
[dB(A)]
Voltage
[V]
Amperage
[A]
Length
[mm]
Weight
[kg]
AR3510WLL 9,2 1100/2300 14/12 1,3 76 42/61 230V~ 2,6 1057 45
AR3515WLL 14 1550/3400 15/12 2,1 77 42/62 230V~ 3,6 1567 61
AR3520WLL 20 2200/4800 15/12 2,9 78 44/63 230V~ 5,3 2073 83
Technical specifications

19
AR3500
GB
General Instructions
Read these instructions carefully before
installation and use. Keep this manual for
future reference.
The guarantee is only valid if the units
are used in the manner intended by the
manufacturer and in accordance with the
Frico mounting and operating instructions.
Application area
The AR3500 air curtain unit is supplied
without heat, with electrical heating or hot
water coil and is intended for installation
above entrances and smaller doors up to 3.5
metres in height.
AR3500 is recessed in false ceilings above
entrances.
Protection class above false ceiling: IP44,
below false ceiling: IP20
Operation
Air is drawn in from underneath and blown
out downwards towards the entrance so that
it shields the door opening and minimises
heat loss. To get the best curtain effect the
unit must extend the full width of the door
opening.
The grille for directing exhaust air is
adjustable and is normally angled outwards to
achieve the best protection against incoming
cold air.
The air speed is adjusted to the desired
airflow.
The efficiency of the air curtain(s) depends
on the air temperature, pressure differences
across the doorway and any wind pressure.
NOTE! Negative pressure in the building
considerably reduces the efficiency of the air
curtain. The ventilation should therefore be
balanced!
Installation
The air curtain is installed horizontally with
the supply air grille facing downwards as close
to the door as possible, concealed in the false
ceiling.
The only visible part of the unit is the
underside which is level with the ceiling.
The service hatch must be accessible, nothing
should prevent it being fully opened.
The unit is ready for suspension with
threaded rods on its outside. The threaded
rods can also be fixed on the inside of the
unit e.g. when mounted on a solid suspended
ceiling.
For the protection of wider doorways,
several units can be mounted next to each
other.
Minimum distance from outlet to floor for
electrically heated units is 1800 mm.
1.The mounting brackets (4x) are fixed to
the unit during transport. Slacken these off,
turn them around and screw into place on
the unit according to figure 1.
2.Hang up on threaded bars (M8) according to
figure 2a (not included).
3.Adjust the height using the lower nut so
that the frame is on the level of the ceiling.
Lock using the upper nut.
Mounting on threaded bars inside unit.
1.The mounting brackets (4x) are fixed to
the unit during transport. Loosen them and
screw them into place inside the unit in the
intended holes.
2.Hang up on threaded bars (M8) according
to figure 2b (not included). Note that
the brackets are at different heights and
threaded rods shall be of different lengths.
3.Adjust the height using the lower nut so
that the frame is on the level of the ceiling.
Lock using the upper nut.
Electrical installation
The installation, which should be preceded by
an omnipolar switch with a contact separation
of at least 3 mm, should only be wired by a
competent electrician and in accordance with
the latest edition of IEE wiring regulations.
The control system is pre-installed in the
aircurtain with an integrated control card,
(see fig 5).
SIRe is supplied pre-programmed with
quick-release connections.
Modular cables are connected to the control
board Base, by opening the service hatch, as
shown in fig. 3 and 5. See manual for SIRe.
Assembly and operating instructions

20
AR3500 GB
1.The service hatch is opened by loosening
the snap fixings located on the down side
(turn 90°). See fig. 3.
2.AR3500A: The unit is fitted with cable and
plug.
AR3500W: The unit is fitted with cable and
plug.
AR3500E: The unit is supplied through
cable glands on the side of the unit. For
units with electrical heating, power and
control should be supplied separately.
Control (230V~) and power supply for heat
(400V3~) should be connected to a terminal
block in the terminal box. The largest
cable diameter for the terminal block is
16 mm². The cable glands used must meet
the protection class requirements. In the
distribution board it is to be indicated that
”the air curtains can be supplied from more
than one connection”.
3. Close the service hatch and make sure that
the snap fixings lock properly.
See wiring diagrams.
Start-up (E)
When the unit is used for the first time or
after a long period of disuse, smoke or odour
may result from dust or dirt that has collected
on the element. This is completely normal
and disappears after a short time.
Connecting the water coil (W)
The installation must be carried out by an
authorised installer.
The water coil has copper tubes with
aluminium fins and is suitable for connection
to a closed water heating system. The heating
coil must not be connected to a mains
pressure water system or an open water
system.
Note that the unit shall be preceded by a
regulating valve, see Frico valve kit.
To access the connections (DN20, 3/4”,
Type Output
[kW]
Voltage
[V]
Minimum area
[mm2]
Manouver 0 230V~ 1,5
AR3510E 9 400V3~ 2,5
AR3515E 13,5 400V3~ 4
AR3520E 18 400V3~ 10
inside thread) the service hatch and intake
grille must be opened. The water coil is
connected inside the unit through holes
which are made (during installation) on the
upper side or through the side of the unit,
possible places are marked with punch marks.
The connections to the heating coil must be
equipped with shut off valves to allow problem
free removal.
NOTE: Care must be taken when connecting
the pipes. Use a wrench or similar to hold the
air curtain connections to prevent straining
of the pipes and subsequent water leakage
during connection to water supply pipe-work.
See fig. 4.
Adjustment of the air curtain and air flow
The direction and speed of the air flow should
be adjusted considering the load on the
opening. Pressure forces affect the air stream
and make it bend inwards into the premises
(when the premises are heated and the
outdoor air is cold).
The air stream should therefore be directed
outwards to withstand the load. Generally
speaking, the higher the load, the greater the
angle that is needed.
Basic setting fan speed
The fan speed when the door is open is set
using the speed control. Note that the air flow
direction and speed may need fine adjustment
depending on the loading of the door.
Filter (W)
The heat coil fin distance, in combination
with the hole diameter of the intake grille,
protects against dirt and blockage and makes
a separate filter unnecessary.
Service, repairs and maintenance
For all service, repair and maintenance first
carry out the following:
1.Disconnect the power supply.
2.The service hatch is opened by loosening
the snap fixings located on the down side
(turn 90°). See fig. 3.
3. After service, repairs and maintenance
close the service hatch and make sure that
the snap fixings lock properly.

21
AR3500
GB
Maintenance
Since fan motors and other components are
maintenance free, no maintenance other than
cleaning is necessary. The level of cleaning
can vary depending on local conditions.
Undertake cleaning at least twice a year. Inlet
and exhaust grilles, impeller and elements
can be vacuum cleaned or wiped using a
damp cloth. Use a brush when vacuuming
to prevent damaging sensitive parts. Avoid
the use of strong alkaline or acidic cleaning
agents.
Overheating
The air curtain unit with electric heater is
equipped with an overheat protector. If it is
deployed due to overheating, reset as follows:
1.Disconnect the electricity with the fully
isolated switch.
2.Allow the electrical coil to cool.
3.Determine the cause of overheating and
rectify the fault.
Reset is performed as follows:
1.Locate the red button inside the air curtain
unit. It is visible and accessible by opening
of the service hatch and inlet grille. The
button is on the left side seen from inside
the room looking out. On the 2 metre
variant, two red buttons are installed in the
middle of the unit.
2.Press the red button until a click is heard.
3.Connect the air curtain again.
All motors are equipped with an integral
thermal safety cut-out. This will operate,
stopping the air curtain should the motor
temperature rise too high. The cut-out
will automatically reset when the motor
temperature has returned to within the
motor’s operating limits.
Temperature control
Temperature control of SIRe maintains
the exhaust temperature at +40 °C. If the
temperature should exceed anyway there is
an over heating alarm. For more information
see the manual for SIRe.
Fan replacement
1.Determine which of the fans is not
functioning.
2.Disconnect the cables to the relevant fan.
3.Remove the screws securing the fan and lift
the fan out.
4.Install the new fan as above in reverse
order.
Replacing the electric heater/coil (E)
1.Mark and disconnect the cables to the
electric heater/coil.
2.Remove the mounting screws securing the
electric heater/coil in the unit and lift the
electric heater/coil out.
3.Install the new electric heater/coil in
reverse order to the above.
Replacing the water coil (W)
1.Shut off the water supply to the unit.
2.Disconnect the connections to the water
coil.
3.Remove the mounting screws securing the
coil in the unit and lift the coil out.
4.Install the new coil in reverse order to the
above.
Draining the water coil (W)
The drain valve is on the underside of the coil
on the connector side. It can be accessed via
the service hatch.
Trouble shooting
If the fans are not working or do not blow properly,
check the following:
• That the intake grille/filter is not dirty.
• Check the functions and settings of the
control system SIRe, see manual for SIRe.
If there is no heat, check the following:
• Check the functions and settings of the
control system SIRe, see manual for SIRe.
For units with electrical heating, check also the fol-
lowing:
• Power supply to electric heater coil; check
fuses and circuit-breaker (if any).
• That the overheat protection for the motors
has not been deployed.
For units with water coil, check also the following:
• That the water coil is air free.

22
AR3500 GB
• That there is enough water flow.
• That incoming water is heated enough.
If the fault cannot be rectified, please contact
a qualified service technician.
Residual current circuit breaker (E)
When the installation is protected by means
of a residual current circuit breaker, which
trips when the appliance is connected,
this may be due to moisture in the heating
element. When an appliance containing a
heater element has not been used for a long
period or stored in a damp environment,
moisture can enter the element.
This should not be seen as a fault, but is
simply rectified by connecting the appliance
to the mains supply via a socket without a
safety cut-out, so that the moisture can be
eliminated from the element. The drying
time can vary from a few hours to a few days.
As a preventive measure, the unit should
occasionally be run for a short time when it is
not being used for extended periods of time.
Safety
• For all installations of electrically heated
products should a residual current circuit
breaker 300 mA for fire protection be used.
• Keep the areas around the air intake
and exhaust grilles free from possible
obstructions!
• During operation the surfaces of the unit
can be hot!
• The unit must not be fully or partially
covered with clothing, or similar
materials, as overheating can result in a
fire risk! (AR3500E)
• This appliance can be used by children
aged from 8 years and above and persons
with reduced physical, sensory or
mental capabilities or lack of experience
and knowledge if they have been given
supervision or instruction concerning
use of the appliance in a safe way and
understand the hazards involved. Children
shall not play with the appliance. Cleaning
and user maintenance shall not be made
by children without supervision.

Main office
Frico AB Tel: [phone]
Box 102
SE-433 22 Partille mailbo[email protected]
Sweden www.frico.se
For latest updated information and information
about your local contact: www.frico.se
Art.no 207378, 20170106 HH/ LT/SÄ