Swegon CASA R120 Programming manual

Instructions for installation, operation and maintenance
Swegon CASA®R120
R120_g_EN-m

Content
Instructions for Use
For the user
Important information ����������������������������������������� 3
Control from a Premium control panel ����������������� 4
Control from a Premium cooker hood������������������ 4
To replace the filters��������������������������������������������� 5
Alarms����������������������������������������������������������������� 5
N.B.! The manual was originally written in Finnish.
Installation, operation and mainte-
nance
For fitters and service personnel
1. Installation instructions........................................ 6
Important information �����������������������������������������������������������6
1�1 General����������������������������������������������������������������������������7
1�2 To install the ventilation unit ��������������������������������������������7
1�3 Ceiling installation �����������������������������������������������������������7
1�4 Installation in ceiling mounting frame ������������������������������8
1�5 Condensate discharge������������������������������������������������������8
1�6 To connect the cooker hood���������������������������������������������9
1�7 Electric and control cables������������������������������������������������9
1�8 Ducts�����������������������������������������������������������������������������10
1�9 Moisture barrier against cold timber frames �������������������10
2. Operation ............................................................ 11
2�1 Basic functions���������������������������������������������������������������11
2�1�1 Fans����������������������������������������������������������������������������11
2�1�2 Temperature ���������������������������������������������������������������11
2�1�3 Protective functions ����������������������������������������������������11
2�2 Optional items of equipment – automated control system
��������������������������������������������������������������������������������������������11
3. Application .......................................................... 12
3�1 To set the airflows����������������������������������������������������������12
3�2 Premium control panel���������������������������������������������������12
3�3 Premium cooker hood����������������������������������������������������12
3�4 Start menu���������������������������������������������������������������������14
3�4�1 Fireplace switch function���������������������������������������������14
3�4�2 Fan speed �������������������������������������������������������������������14
3�5 Main menu��������������������������������������������������������������������14
3�5�1 Language��������������������������������������������������������������������14
3�5�2 Installation and service������������������������������������������������14
3�5�3 Clock��������������������������������������������������������������������������14
3�5�4 Summer night cooling�������������������������������������������������14
3�5�5 Temperature ���������������������������������������������������������������14
3�5�6 Basic display����������������������������������������������������������������14
3�5�7 To switch off the unit ��������������������������������������������������14
3�5�8 Fireplace switch function���������������������������������������������14
3�5�9 Weekly timer ��������������������������������������������������������������14
3�5�10 Ventilation unit model�����������������������������������������������15
3�6 Installation and service���������������������������������������������������15
3�6�1 Sensor fault ����������������������������������������������������������������15
3�6�2 Service reminder/alarms ����������������������������������������������15
3�6�3 Clock��������������������������������������������������������������������������15
3�6�4 Temperature ���������������������������������������������������������������15
3�6�5 Measurement �������������������������������������������������������������15
3�6�6 Control �����������������������������������������������������������������������15
3�6�7 Fan speeds������������������������������������������������������������������15
3�6�8 To switch off the unit ��������������������������������������������������15
3�6�9 Factory settings�����������������������������������������������������������15
3�6�10 Actuators������������������������������������������������������������������15
3�6�11 Functions������������������������������������������������������������������15
3�6�12 Electric air heater ������������������������������������������������������15
4. Servicing .............................................................. 16
4�1 Service reminder ������������������������������������������������������������16
4�2 To open the ventilation unit �������������������������������������������16
4�3 Filter change������������������������������������������������������������������16
4�3 Other servicing���������������������������������������������������������������16
5. Alarms and troubleshooting.............................. 17
5�1 Alarms���������������������������������������������������������������������������17
5�1�1 Alarms from a Premium control panel �������������������������17
5�2 Troubleshooting:������������������������������������������������������������17
5�2�1 The supply air is not sufficiently heated�����������������������17
6. List of components ............................................. 18
7. Technical data...................................................... 19
7�1 Sizing�����������������������������������������������������������������������������19
7�2 Wiring diagram, ventilation unit�������������������������������������21
7�3 Power consumption�������������������������������������������������������21
7�4� Wiring diagram, optional equipment ����������������������������22
7�5 Control diagram ������������������������������������������������������������24
7�6 Dimensions��������������������������������������������������������������������25
7�7 Weight ��������������������������������������������������������������������������25
7�8 Optional equipment�������������������������������������������������������25
8. Commissioning.................................................... 26
Plant data to be given when requesting service
Project planning
See separate project planning instructions, www�swegon�com�
Swegon reserves the right to alter specifications.
2 www�swegon�com
R120.211112

Important information!
Airflows
The air in the home should be changed at a
continuous and sufficient rate to ensure a pleas-
ant indoor climate and avoid damage to building
elements caused by dampness� The ventilation
unit should be stopped only while service work
is in progress�
The airflow from the ventilation unit can be
controlled to generate the various airflows from
a Premium control panel or a Premium cooker
hood�
• Away = a low airflow, which can be utilized
when no one is in the home and there is no
need for the same ventilation that is normally
in use, e�g� for moisture-removal�
• Home = normal airflow�
• Boost = a high airflow, used in connection
with cooking, taking a sauna bath, showering,
drying laundry and similar activities�
The Away/Home operating modes and the tem-
perature of the supply air can be controlled with
the ventilation unit’s built-in weekly timer; how-
ever the operating mode can always be changed
from the Premium control panel or the Premium
cooker hood�
A low airflow when the home is unoccupied
means economical operation� This saves on fan
energy and the home heating system does not
have to heat as much air during the cold season�
The most important function of the venti-
lation system is to ensure that the indoor
air will be continuously fresh and to re-
move impurities and moisture from the air.
You should therefore make an appraisal of
whether a low airflow is sufficient while the
home is unoccupied. The low airflow mode
must absolutely not be used when someone
is in the home.
If the load on the home is greater than
you’ve anticipated, then you should increase
the normal airflow to a correspondingly
higher rate.
Drying laundry
A tumbler dryer of extract air type or a drying
cabinet must not be connected to the system
due to the high moisture content in the air leav-
ing them� We recommend a condensing tumbler
dryer without duct connection�
Freeze protection
During periods of cold weather, the heat ex-
changer is liable to freeze if the extract air is
humid� A protective function then automatically
reduces the speed of the supply air fan� Under
such conditions, variations in the fan speed are
therefore normal�
Filters
The ventilation unit must not be operated with-
out filters� Use only filters recommended by
Swegon in the ventilation unit�
Commissioning
The ventilation should not be commissioned until
all work that produces large quantities of grind-
ing dust or other impurities has been completed�
Instructions for Use
R120.211112
Swegon reserves the right to alter specifications. www�swegon�com 3

When the power is switched on, the ventilation unit
starts up in the Home operating mode� The start time
is approx� 1 minute� After that, the control panel can
be used� Likewise after a power failure, the ventilation
unit starts up in the Home operating mode, if the power
failure has cleared the memory�
The functions of the push buttons are described in the
image to the right�
Fireplace switch function
The speed of the extract air fan decreases and the speed
of the supply air fan increases for a few minutes� This
produces excess pressure in the home and in this way
"creates" an updraught in the chimney, which makes it
easier to light the log-fire�
Selection of fan speed
The fans inside the unit can be controlled to operate at
three speeds: Home/Away/Boost� Select the required fan
speed from the control panel�
You can select an airflow boost time of 30, 60 or 120
minutes, or continuous boosted airflow�
The operating mode can be manually changed, even
when the fan speed is controlled by the weekly timer�
Menu/Installation and service
You can enter settings that affect the operation and
functions of the ventilation unit from the Installation
and service menu and submenu� You should normally
enter these settings when you install the ventilation sys-
tem� The settings are described in Sections 3�5 and 3�6�
Signal lamp
The indicating lamp on the control panel indicates the
functions and alarms of the ventilation unit with various
colours� This is described in Section 5�
Fireplace switch function
Return to previous menu
level
Move to the left
Menu
Move to the right
Setting function
Selection of fan speed
Move upward/downward
Entering values
Signal lamp
Control from a Premium control panel
Start menu
Fireplace switch
function
Menu structure
Menu
(See Section 3.5)
Installation and service
(See Section 3.6)
Fan speed
The ventilation unit fan speeds and other settings
should be entered via the Premium control panel� When
you have entered these settings, the functions below
will be available from the cooker hood control panel�
• The cooker hood damper� When preparing food or
carrying out a similar activity, a 30, 60 or 120 minute
damper-open period can be selected� One single
press of the button will change the setting to the
next damper-open period� The fourth press of the
button cancels the setting and closes the damper�
• The cooker hood lighting� On/Off�
• The ventilation unit fan speed� The fans inside the
unit can be controlled to operate at three speeds:
Away/Home/Boost� One single press of the button
will increase the fan speed one step� The period for
the boost speed is preset to 60 minutes, after which
the ventilation unit will return to normal airflow�
Control from a Premium cooker hood
Control of the cooker hood shut-
off damper
Indication: 30/60/120 min�
Lighting Ventilation unit fan speed
Away, home, boost
The control panel of the Premium cooker hood
Swegon reserves the right to alter specifications.
4 www�swegon�com
R120.211112

Extract air filter
The filter should be cleaned every six months and should
be replaced at least once per year� It may be necessary
to clean or replace the filter more often in homes where
there is considerable dust�
Supply air filter
The filter should be cleaned every six months and should
be replaced at least once per year� If the air is highly
polluted, e�g� due to heavy traffic, the filter should be
replaced more often�
Service reminder
The ventilation unit’s control system is normally preset
for displaying a service reminder every six months� This
time setting can be changed by qualified service person-
nel�
Alarms
Alarms from a Premium control panel
• The indicating lamp is flashing red: The automated
protection system has stopped the fans due to a
malfunction� The alarm text is shown in the display�
Contact service!
• The indicating lamp is lit with a steady red glow:
Alarm or a service reminder� The alarm text is shown
in the display� Contact service!
• The indicating lamp indicates certain unit functions
with other colours� See Section ”3�2 Premium control
panel”
To replace the filters
The home owner can change the fil-
ters himself or herself. Other service work
must be carried out by qualified service
personnel.
The locations of the filters in a ventilation unit in
the right-hand version.
The locations of the filters are mirror-inverted in a
ventilation unit in the left-hand version.
The ventilation unit must not be op-
erated without filters!
Use only filters recommended by Swegon
in the ventilation unit.
Find the correct filters in Section 6.
List of components.
Fine filter
Wide-meshed filters
and fine filter
R120.211112
Swegon reserves the right to alter specifications. www�swegon�com 5

1. Installation instructions
Qualified personnel only
The installation work, the entering of settings
and commissioning should be carried out by
qualified personnel only�
Standards and requirements
The pertinent national standards and regula-
tions dealing with installation, the entering of
settings and commissioning must be followed if
the equipment is to operate correctly�
You will find the document entitled “Project
design instructions for ventilation” at the web
address www�swegon�com/casa, in which
requirements on electric power, noise, airflows
and duct systems are presented� Each country
has specific national requirements which must
be observed�
Right-hand or left-hand version
Check whether the ventilation unit has been
supplied in the right-hand or left-hand version
to make certain that you are connecting the air
ducts to the correct duct connection spigots on
the unit� See also the dimensional drawings in
Section 7, Technical data�
Drying laundry
A tumbler dryer of extract air type or a drying
cabinet must not be connected to the system
due to the high moisture content in the air leav-
ing them� We recommend a condensing tum-
bler dryer without duct connection�
The covered duct connection spig-
ots
The duct connection spigots of the ventilation
unit must be covered by lids during transport,
storage and installation�
Filters
The ventilation unit must not be operated
without filters� Use only filters recommended by
Swegon in the ventilation unit�
Commissioning
The ventilation should not be commissioned
until all work that produces large quantities
of grinding dust or other impurities has been
completed�
Important information!
Swegon reserves the right to alter specifications.
6 www�swegon�com
R120.211112

Wall mounting bracket’s dimensions
Horizontal stud for the ventilation unit’s mounting bracket
Acoustic insula-
tion
The ventilation unit should not be secured to a
wall that borders to a living room or a bedroom.
If the wall is composed of vertical studs and building
boards, the wall must be reinforced with horizontal
studs to enable it to support the weight of the unit�
Swegon also recommends that the wall be insulated
with mineral wool or similar insulation for preventing
sound from propagating to other rooms�
Secure the mounting bracket horizontally to the wall
with screws, using a suitable means of anchoring that
can support the weight of the ventilation unit�
Lift the ventilation unit into place, so that the wall
bracket tips engage into the corresponding slots on the
backside of the ventilation unit�
Make sure that the electric and control cables are
visible. See also Section 1.7 Electric and control
cables.
The ventilation unit can also be mounted in a mounting
frame on the ceiling� See Optional Equipment�
1.3 Ceiling installation
Fasten the ceiling mounting frame with four M8 thread-
ed rods in the ceiling anchor sleeves so that at least
three of the threaded rods are aligned with the corners
of the ceiling mounting frame� To avoid a possible col-
lision with the ducts, one of the threaded rods can be
located in the hole next to the corner� Screw in the M8
nuts onto the threaded rods to such a height that the
Wall mounting bracketInsulated wall
Horizontal reinforcement
On delivery, the package containing
the wall mounting bracket is inside the
bypass duct.
1.1 General
You can install the ventilation unit in a scullery, stor-
age space, attic, etc� If the ventilation unit is located
in a cold space, it should be have thermal insulation, if
required�
The ventilation unit conforms to enclosure class IP 44
when the cover is closed�
Connect the extract air from the Premium cooker hood,
if the need arises, via a duct to the extra duct con-
nection spigot on the top side of the ventilation unit�
Otherwise, blank off the connection spigot�
To make it easier to lift the ventilation unit, the inspec-
tion cover can be removed and the heat exchanger
can be dismantled from the unit� The fans can also be
removed if necessary� See Section 4, Service�
1.2 To install the ventilation unit
Secure the ventilation unit to the wall using the wall
mounting bracket supplied with the unit�
The points on the locking hooks on
the edge of the ceiling mounting frame
should be bent back.
The bottom of the ceiling mounting frame
should be positioned approx. 15 mm be-
low the ceiling surface. If ceiling moulding
is fitted around the frame, it should be
mounted after the unit has been installed.
R120.211112
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Do not use the cooker hood for basic
kitchen ventilation; use it only when you
prepare food.
The electric and control cables of the
ventilation unit are located on the top side
of the unit. Make sure that the electric ca-
ble can be connected to a wall outlet.
The R120 lifted up on
the lower catches.
Lock the R120 into
place by tightening
the screws in the front.
Make sure that no wires
or the like come to rest
between the ventilation
unit and the mounting
bracket.
Ø 125 mm
ceiling mounting frame will be horizontal when the top
of the frame goes against the nuts� Fit the mounting
frame through the selected holes against the nuts on
the threaded rods and lock the frame into position with
nuts from below� The ends of the threaded rods are per-
mitted to stick out max� 3 cm from the ceiling mounting
plate� If they stick out farther, they will protrude against
the unit’s upper casing section�
1.4 Installation in ceiling mounting frame
Run the power supply and data cable through the ceil-
ing mounting frame before you lift the unit into posi-
tion� Lift the ventilation unit into the ceiling mounting
frame so that all four locking hooks will fit correctly in
the notches at the top of the unit� The locking hooks
have two catches; the lower one locks the unit to
facilitate connection to the ducts and the wiring of the
electric cables� When the unit is at the correct position
in relation to the duct and the electric cables have been
run inside the unit, lift up the upper catches� When
the catches are locked the screws of the upper section
spring out� Finish by ensuring that the ventilation unit is
mounted at its location by tightening the screws in the
upper casing section�
1.5 Condensate discharge
As a rule, no condensate discharge is needed under dry
ambient conditions and in combination with a rotary
heat exchanger� A certain amount of humidity load is
common in homes� If substantial moisture is produced
in the home, connect the ventilation unit’s condensate
drain connection to discharge piping�
Connect the condensate discharge hose to the con-
densate discharge connection of the unit (3/8”, Male
threads)� The condensate must be channelled to a floor
gulley, the water trap of a sink or the equivalent by
means of a stiff hose or a pipe having an inner diameter
of at least 12 mm� The water must not be led away
directly to the sewer�
Vertically mount the water trap on the hose supplied
with the unit and fill it with water� The hose must not
have a second water trap or be run horizontally� The
damming height of the water trap should be at least
100 mm�
Condensate discharge
Swegon reserves the right to alter specifications.
8 www�swegon�com
R120.211112

1.7 Electric and control cables
The unit has an earthed plug contact for connection to
the mains power� The mains plug serves as the ventila-
tion unit’s main switch and it should be connected to an
electric socket at an easily accessible spot�
The room unit is equipped a 1�5 m long cable with plug-
in contact, installed from the topside of the ventilation
unit� Arrange the wall outlet at an easy-to-reach loca-
tion� For power requirement particulars, see Section 7,
Technical data�
Connect the ventilation unit to the Premium control
panel via a modular cable� Install the Premium control
panel at a place of your choice� Two modular cables are
included in the supply: one approx� 3 m long cable and
one 20 m long cable�
When installing the unit, make sure that you provide
adequate access to the connector of each cable (loose
ones as well), e�g� for servicing and adjusting the unit, if
and when the need arises�
The diameter of the modular cable wiring tube should
be 20 mm�
The connection of possible optional equipment is
described in the wiring diagram in Section 7, Technical
data� The cables for the optional items of equipment are
not included in the supply�
The electric and control cables are
located on the top side of the ventilation
unit. Make sure that the electric cable can
be connected to a wall outlet without ob-
struction.
To dismantle the front plate on a Premium control panel.
To connect the modular cable. The extra contact is used for
connection of an extra control panel.
If you lengthen the modular cable
within some building element (e.g. in a
wall), you should lengthen the cable in a
20 mm dia. conduit, anticipating a possible
later change of cabling.
1.6 To connect the cooker hood
Connect a duct from the cooker hood duct connec-
tion spigot to the connection spigot on the top side
of the ventilation unit, which is intended for separate
extract air and which conveys the air to bypass the heat
exchanger�
The duct between the cooker hood and the ventilation
unit must be mounted in such a way that makes it pos-
sible to clean it�
If the bypass from the kitchen is not used, the outlet
spigot must be blanked off�
R120.211112
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1.8 Ducts
Install the air ducts, sound attenuators, supply air diffus-
ers, air intake grilles and exhaust air ducts as shown in
the ventilation drawings� To prevent the propagation of
sound, do not install the ducts directly against structural
building elements�
Insulate the air ducts in order to reduce loss of heat or
cooling energy and to prevent water from condensing
on surfaces�
In general, ventilation ducts are insulated in the follow-
ing manner:
• Outdoor air ducts are insulated in warm spaces and
in attics that are used�
• Exhaust air ducts should always be insulated in ac-
cordance with national regulations� See separate pro-
ject planning instructions (for example Fire resistance
classification requirements)�
• Insulate supply air ducts in cold spaces�
• Insulate extract air ducts in cold spaces�
• If the air inside the duct is colder than the air in the
surroundings, the insulation should be protected by
a moisture barrier (e�g� outdoor air and exhaust air in
interior spaces, or chilled supply air)�
The thickness of the insulation and
the nature of the surface layer of the ven-
tilation ducts vary depending on insulation
material, climate zone and national stand-
ards in force. For this reason, Swegon does
not offer any general recommendations.
Most manufacturers of insulation material
offer calculation programs for the calcula-
tion of sufficient and correct insulation.
In renovation projects, it is advisable to
examine the existing ducts to determine
whether they are sufficiently and correctly
insulated.
Insulating in the right way is necessary for
the ventilation unit to operate correctly.
It is essential that the ventilation
ducts are clean in order for the ventilation
unit to operate as it should. The ventila-
tion ducts should be cleaned regularly
and always when the home is renovated.
When the freeze protection function
is activated, you cannot change the ven-
tilation unit fan speeds from the control
panel.
1.9 Moisture barrier against cold timber
frames
It is important that the moisture barrier between cold
stud work and the warm ceiling maintains its tightness
at duct penetration points� A duct penetration piece
(optional extra) will facilitate this�
Swegon reserves the right to alter specifications.
10 www�swegon�com
R120.211112

This item is available in sets of 5 for size 100, 125 and
160 mm dia� ducts� It can be fastened with tape in the
moisture barrier�
We recommend the use of a mounting frame (optional
extra) for sealing the moisture barrier in the attic tie
beams�
Cut up the openings with approx� 10 mm smaller
diameter than that of the ducts� Secure the mounting
frame in the ceiling with screws through the holes on
the sides� The plastic film of the moisture barrier should
either be stretched and fastened between the mounting
frame and the structural element of the building, or be
taped tightly against the mounting frame�
2.1 Basic functions
How to activate and set the functions is described in
Section 3, Application.
2.1.1 Fans
The fans can be controlled to different operation modes
from a control panel or a Premium cooker hood�
• Away = a low airflow, which can be utilized when no
one is in the home and there is no need for the same
ventilation that is normally in use, e�g� for moisture-
removal�
• Home = normal airflow�
• Boost = a high airflow, used in connection with cook-
ing, taking a sauna bath, drying laundry and similar
activities�
The Away/Home operating modes are controllable with
the ventilation unit’s built-in weekly timer; however the
operating mode can always be changed from a Premi-
um control panel (or from the control panel on a cooker
hood�
The airflow boost time can be selected manually to 30,
60 or 120 minutes, or for continuous boosted airflow,
from a Premium control panel� When the unit is con-
trolled from a Premium cooker hood, the fan’s boost
time is 60 minutes and the time that the damper is open
can be selected to 30, 60 or 120 minutes�
2.1.2 Temperature
The user sets the desired temperature, and the ven-
tilation unit then strives to reach this temperature if
possible� In general, the user should set a temperature
between 13 and 20 °C� The temperature should be
lower than the room temperature, so that the supply air
will thoroughly mix with the room air� Note that a high
temperature setting will increase the ventilation unit’s
consumption of electric power� The factory-preset sup-
ply air temperature is 17 °C�
When the heat exchanger’s heating capacity is insuffi-
cient for reaching the preset supply air temperature, the
speed of the supply air fan will decrease and the supply
air temperature will rise� The fan will stop if the supply
air temperature drops despite this measure�
If there is an electric air heater inside the ventilation
unit, it will be activated when the heat exchanger’s
heating power is insufficient, and the air heater will
strive to reach the supply air temperature setting� If no
heating is required, the air heater can be switched off
from a Premium control panel�
The function for summer night cooling can be used
for utilising the cool night air to cool down the home�
The automatic function for summer night cooling stops
the rotary heat exchanger when heat recovery is not
needed� The heat exchanger starts up and makes use of
the extract air if the indoor air is cooler than the out-
door air� The limit values of the function are adjustable
from a Premium control panel�
2.1.3 Protective functions
The electric air heater has two protective functions�
One automatic excess temperature cutout switches off
the air heater if a fault situation arises� This protective
function automatically resets itself when the air heater
has cooled down�
The excess temperature cutout with manual reset can
be reset by pressing a button inside the ventilation unit�
The location of the button is marked in the adjacent
illustration� The excess temperature cutout is reset when
you sense a click on pressing the button�
The heat exchanger is equipped with a freeze protec-
tion� The speed of the supply air fan decreases when
cold weather involves risk that the heat exchanger will
freeze� If the supply air temperature drops further, the
controller switches off the supply air fan� This protective
function automatically resets itself when the tempera-
ture rises�
The fans have a thermal overload cutout, which stops
them if the temperature rises too high� The controller
also stops the fans if a serious malfunction occurs in the
ventilation unit� The protective function resets itself au-
tomatically when the temperature drops or the malfunc-
tion has been remedied�
2.2 Optional equipment – automated
control equipment
How to activate and set the functions is described in
Section 3, Application. The connection of optional
equipment is described in the wiring diagram in Section
7, Technical data.
The optional items of equipment can be used
for achieving the type of control required in the follow-
ing way:
• Boost timer. The boosted operation mode can be
switched in from a control panel or a Premium cooker
hood� A separate boost timer (push button) can be
installed in another place, e� g� in a sauna, bathroom,
scullery, etc�
• Humidity sensor. Detects whether a preset limit
2. Operation
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3. Application
3.1 To set the airflows
The home should have continuous air change to ensure
a pleasant indoor climate and avoid damage to building
elements due to humidity� The ventilation unit should be
stopped only while service work is in progress�
The airflows should be set according to the ventilation
plan and applicable regulations� For estimated values,
use the sizing curves in Section 7, Technical data� A
qualified person should set the ventilation unit’s and the
ventilation equipment’s airflows using appropriate meas-
urement equipment�
A low airflow when the home is unoccupied means
economical operation� This saves on fan energy and the
home heating system does not have to heat as much
air during the cold season� An assessment of whether a
low airflow is sufficient for removing emissions, mois-
ture, etc� from the air should be made�
3.2 Premium control panel
When the power is switched on, the ventilation unit
starts up in the Home operating mode� The start time
is approx� 1 minute� After that, the control panel can
be used� Likewise after a power failure, the ventilation
unit starts up in the Home operating mode, if the power
failure has cleared the memory�
The functions of the push buttons are described in the
image�
The indicating lamp on the control panel shows the vari-
ous functions of the ventilation unit in different colours�
1� Steady green glow: The ventilation unit is operating
normally�
2� Flashing green glow: The freeze protection has been
activated�
3� Orange flashing glow: The electric air heater has been
activated� (Reheating is optional equipment�)
4� Flashing red glow: The automated protection system
has stopped the fans due to a malfunction�
5� Steady red glow: Alarm or a service reminder�
3.3 Premium cooker hood
The ventilation unit fan speeds and other settings
should be entered via the Premium control panel� When
you have entered these settings, the functions below
will be available from the cooker hood control panel�
• The ventilation unit fan speed� The fans inside the
unit can be controlled to operate at three speeds:
Away/Home/Boost� One single press of the button
will increase the fan speed one step� The period for
the boost speed is preset to 60 minutes, after which
the ventilation unit will return to normal airflow�
• The cooker hood damper� When preparing food or
carrying out a similar activity, a 30, 60 or 120 minute
damper-open period can be selected� One single
value, e�g� 60 % relative humidity (RH), is exceeded
and switches the fan to operate in the boosted flow
mode� It can be placed in a sauna, a bathroom, a
scullery, etc� The sensor voltage is 24 V DC�
• Separate fireplace switch. The function can be
switched in from a control panel or a Premium cooker
hood� A separate fireplace switch (push button) can
be installed in another place, e� g� next to an open
fireplace� The speed of the extract air fan decreases
and the speed of the supply air fan increases for a
few minutes� This produces excess pressure in the
home and in this way "creates" an updraught in the
chimney, which prevents smoke from entering the
room when you light the log-fire�
• Occupant detection sensor. The sensor detects
movement in the home and increases the fan speed
to the Home value�
• Carbon dioxide sensor. It is suitable for use when-
ever the number of occupants varies� The sensor
increases the fan speed to the Boost value, when a
preset maximal value is exceeded, e�g� 900 ppm�
• Negative pressure compensation. Negative pres-
sure arises in the home when a separate cooker hood
or central vacuum cleaner is used, since the extract
airflow becomes substantially higher than the supply
airflow� A separate sensor (e�g� one that senses the
difference in pressure) can transmit a signal to the
controller to increase the supply air flow from the
ventilation unit to restore balance�
• Supervision (DDC). Certain functions can be con-
trolled from the automated building management
system of the building� See the connection schedule
for optional items of equipment in Section 7, Techni-
cal data�
• Home/Away switch. For example, systems controlled
from a cooker hood, generally have a separate Home/
Away switch (optional extra) by the front door� The
switch starts the Away function in the ventilation unit�
The switch can be a standard switch of optional type�
See Section 7�
Swegon reserves the right to alter specifications.
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R120.211112

Before commissioning the ventilation
system, check that the ventilation unit, fil-
ters and ducts are clean and that there are
no loose objects inside them.
press of the button will change the setting to the
next damper-open period�
• The cooker hood lighting� On/Off�
Fireplace switch function
Return to previous menu
level
Move to the left
Menu
Move to the right
Setting function
Selection of fan speed
Move upward/downward
Entering values
Signal lamp
Control panel, Premium cooker hood
Premium control panel
Control of the cooker hood shut-
off damper
Indication: 30/60/120 min�
Lighting Ventilation unit fan speed
Away, home, boost
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3.4 Start menu
3.4.1 Fireplace switch function
The fireplace switch function decreases the extract air
fan speed and increases the supply air fan speed for
approx� 10 minutes� This produces excess pressure in
the home and in this way "creates" an updraught in the
chimney, which prevents smoke from entering the room
when you light the log-fire�
An unnecessary or longterm use of the fireplace switch
function in the wintertime may easily activate the frost
protection function during an unnecessarily long time,
which creates negative pressure in the house and smoke
can be drawn into the house via the chimney� You can
cancel the fireplace switch function by pressing the
fireplace switch function button once again within 10
minutes after you pressed it the first time�
N.B.! The ventilation unit is no source for neces-
sary replacement air while a fire is burning in the
fireplace.
The function is shown in the display only if the value is
On in Menu 3.5.8.
3.4.2 Fan speed
Select the appropriate fan speed� Timer-controlled
airflow boost is available� The operating mode can be
manually changed, even when the fan speed is con-
trolled by the weekly timer�
3.5 Main menu
You can enter settings that affect the operation and
functions of the ventilation unit from the menu�
N.B.! A number of functions are available in the
Main menu as well as in the Installation and Ser-
vice submenu.
From the Montage and service menu, you select wheth-
er the function should be used and certain settings�
The function must be activated from the main menu�
3.5.1 Language
Select the appropriate language�
3.5.2 Installation and service
See Section 3�6, Installation and service�
3.5.3 Clock
Select date and time of day�
3.5.4 Summer night cooling.
This function utilises the cool night air to cool down the
home� The rotary heat exchanger stops�
Conditions for start:
• The reheating function is not active�
• The extract air temperature is above 22 °C� The
outdoor temperature is above 16 °C, but at least 1
°C lower than the extract air temperature� It is pos-
sible to change the temperature limits and select fan
speeds�
3.5.5 Temperature
Set the desired supply air temperature (factory setting:
17 °C)� The ventilation unit’s heat exchanger and an air
heater, if included, are automatically activated so that
the desired temperature will be reached� The supply air
temperature should be lower than the room temperature,
so that the supply air will thoroughly mix with the room
air� Note that a high temperature setting will increase the
ventilation unit’s consumption of electric power�
3.5.6 Basic display
Basic display 1 is selected when the fan speeds in the
Away/Home/Boost steps are to be changed�
Basic display 2 is selected when the fan speeds are to be
changed in five different steps�
3.5.7 To switch off the unit
The ventilation unit fans, the heat exchanger and an air
heater, if fitted, are stopped� The circuit card is how-
ever still energised and the settings are preserved in the
memory�
3.5.8 Fireplace switch function
Select ON as the value for this function, if you wish to
use the function from the control panel display, other-
wise select Off� See also 3�4�1 above�
3.5.9 Weekly timer
Four different programs can be selected on the weekly
3.4 Start menu
3.4.1
Fireplace switch
function
3.4.2 Fan speed
• Away
• Home
• Boost
Menu structure
3.6 Installation
and service
See next page!
3.5 Main menu
•Language
•Installation and service
Time switch clock
(timer)
Summer night
cooling
Temperature
Base display
Fireplace switch
function
Switch off
Weekly timer
Unit model
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R120.211112

3.6 Installation and service
The menu is can be opened by entering code 1234�
3.6.1 Sensor fault
Contact a service company�
3.6.2 Alarms/Service reminder
The service reminder appears on the screen at six-month
intervals� On completed service, the reminder is set to
zero from the menu and a new period of six months
begins� The time period can be altered from the Func-
tions menu�
Alarms for malfunctions are displayed in the display�
3.6.3 Clock
”On” or ”Off”�
The clock is displayed in the start menu�
3.6.4 Temperature
”On” or ”Off”�
The supply air temperature control function is displayed
in the start menu� Select ON in order to use the function
for setting the supply air temperature, otherwise select
Off� (The models with reheat�)
3.6.5 Measurements
Depending on the accessories connected, the follow-
ing can be measured: the carbon dioxide content (CO2),
temperature, pressure differential, the speed of the fans
and relative humidity (RH)�
3.6.6 Control functions
Carbon dioxide content (CO2), supervision (DDC) or
timer can be selected as a control means�
3.6.7 Fan speeds
N.B.! The Summer night cooling function should be
deactivated whenever you change the fan speeds.
One of five fan modes (1–5) can be selected for each
operating mode (Away, Home, Boost etc�)�
The various fan mode speeds (expressed as a percent-
age: 10–100) can then be selected (separate for supply
air and extract air)�
3.6.8 To switch off the unit
The ventilation unit fans, the heat exchanger and an air
heater, if fitted, are stopped� The circuit card is how-
ever still energised and the settings are preserved in the
memory�
3.6.9 Factory settings
All settings except the fan speeds are reset to factory
values�
3.6.10 Actuators
It is possible to select settings for duct equipment, the
valve actuators or circulation air regulation�
3.6.11 Functions
• Select ON as the value for Low pressure compensa-
tion, e�g� if the cooker hood has a differential pres-
sure guard in the extract air duct of the cooker hood
for this function, otherwise select OFF�
• Select ON as the value for Service reminder, if the
function is to be used, otherwise select Off� The time
interval (6 months) can be changed�
• Select ON as the value for Summer night cooling, if
you wish to select the function in the menu, other-
wise select Off�
• Select On as the value for Heating, if an air heater
is installed, otherwise select Off� The limit value for
high temperature is 50 °C� The temperature can be
changed� Supply air fan ctrl is selected as the control
means, this can be changed to Room controlled�
• Select On as the Fireplace switch function setting,
if a fireplace switch has been installed, otherwise
select Off� The fireplace switch function decreases the
extract air fan speed and increases the supply air fan
speed� The freeze protection works in the reverse
manner: It stops the supply air fan and only allows
the extract air fan to run�
• Select On as the value for Boost, if a boost timer or a
presence detector is installed, otherwise select Off�
3.6.12 Electric air heater
If the ventilation unit has an air heater for reheating,
select the ”In operation” setting� The air heater is not
activated when the outdoor air temperature is above 11
°C� The temperature limit can be changed�
3.6 Installation and ser-
vice
(code 1234)
• Alarm/Service reminder
• Time switch clock (timer)
• Temperature
• Measurements
• Control functions
• Fan speeds
• Switch off
• Factory settings
• Controller
• Functions
• Air heater
timer, with the Away–Home–Boost fan speeds� Manual
operation from the control panel bypasses (overrides)
the weekly timer functions�
3.5.10 Ventilation unit model
Shows the model of the ventilation unit�
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4. Servicing
The locations of the filters in a ventilation unit in
the right-hand version.
The locations of the filters are mirror-inverted in a
left-hand model.
The ventilation unit must not be op-
erated without filters!
Use only filters recommended by Swegon
in the ventilation unit.
Find the correct filters in Section 6. List of
components.
4.1 Service reminder
The ventilation unit’s control system is normally preset
for displaying a service reminder every six months� If
required, this function can be altered in the Installation
and Service menu� From same menu you set to zero the
service reminder after performed service�
4.2 To open the ventilation unit
Isolate the power supply voltage to the ventilation unit
(pull out the mains plug from the wall socket)� Wait a
few minutes before you open the inspection covers on
the ventilation unit, so that the fans will have time to
stop and the air heaters can cool down�
4.3 Filter change
• To open the front inspection cover�
• Wait a few minutes, so that the fans have time to
stop and the air heaters, if fitted, have time to cool
down�
• Change the filters�
• Close the inspection cover�
The filters should be vacuum cleaned every six
months and should be replaced at least once per
year.
4.3 Other servicing
To be carried out at least once per year.
• Withdraw the heat exchanger for inspection� If you
withdraw the entire heat exchanger, you must also
disconnect the quick-fit connector� Then remove the
front panel�
Check that the drive belt is not worn� Replace it if it
is worn�
Check that the heat exchanger passages are not
clogged� Clean with a soft brush, vacuum cleaner or
under running water, if needed� If you find it neces-
sary to use detergent, choose one that does not
corrode aluminium� Protect the heat exchanger drive
motor to prevent contact with liquid�
N.B.! The passages of the heat exchanger should
be dry before you refit it.
• Clean the inner surfaces of the ventilation unit, if
needed�
• Check that the condensate discharge outlet is not
clogged and check its outflow by pouring water on
the bottom of the ventilation unit�
Fine filter
Wide-meshed filters and fine filter
Swegon reserves the right to alter specifications.
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R120.211112

5.1 Alarms
5.1.1 Alarms from a Premium control panel
• The indicating lamp is flashing red: The automated
protection system has stopped the fans due to a
malfunction� The alarm text is shown in the display�
Remedy the malfunction�
• The indicating lamp is lit with a steady red glow:
Alarm or a service reminder� The alarm text is shown
in the display� Remedy the malfunction or perform
service on the ventilation unit�
• The indicating lamp indicates certain unit functions
with other colours� See Section ”3�2 Premium control
panel”
5.2 Troubleshooting:
Eventual malfunctions are shown by alarm texts in ac-
cordance with 5�1�1� Investigate the components related
to the malfunction and remedy the malfunction�
5.2.1 The supply air is not sufficiently heated
Low temperature setting for the supply air
Investigate and, if needed, increase the temperature
from the menu�
The electric air heater is faulty (optional equip-
ment)
The air heater has one excess temperature and one
overheating protection functions� The alarm is initiated
in accordance with Section 5�1�1� if either of these are
activated�
The over temperature protection resets itself automati-
cally when the temperature decreases� The overheating
protection must be reset by pressing a push button on
the air heater� If you hear a click when you press in the
button, this indicates that the overheating protection
has been reset�
Excessively high temperature may be due to too low an
air flow through the air heater� The cause can be that
a filter, outer wall grille or supply air device is clogged�
Replace and clean, if needed�
Tip: In most models, the outer wall grill has an insekt
net� If the net has small mesh, dust and insects can clog
it� During certain conditions it it is also liable to freeze�
Remove the net or replace it with a net with larger
mesh�
An excessively high temperature can also be due to the
supply air fan having stopped or that the temperature
sensor has been shaken loose from its position in the
fan intake�
Badly isolated ventilation ducts
If the unit emits warm air but the supply air discharged
from the air diffuser feels cold, this may be due to
poorly insulated ventilation duct�
The ventilation unit does not obey commands
If two overlapping commands are issued, the unit obeys
5. Alarms and troubleshooting
Freeze protection
During periods of cold weather, the heat
exchanger is liable to freeze if the extract
air is humid. A protective function then
automatically reduces the speed of the
supply air fan. Under such conditions,
variations in the fan speed are therefore
normal.
The LED on a Premium control panel
flashes green when the freeze protection
is activated.
the command with the highest priority, e�g� the freeze
protection�
Priority 1: Commands from outer sensor or the ventila-
tion unit’s protective functions�
Priority 2: External supervision (DDC)�
Priority 3: A normal control panel or the operation of
the cooker hood�
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6. List of components
Position Component Data Order no.
1 Circuit card 603012
2 Reheating cassette 10212RVM
3 Fan motor G3G146-ED23-06 119 W (R) 60842
3 Fan motor G3G146-ED23-56 119 W (L) 60844
4 Heat exchanger (complete) 61052
5 Modular cable, 20 m PMK20
6 Premium control panel PSP148
7 Temperature sensors
8/9 Set of filters 2 class F7 fine filters
1 class G3 wide-mesh filter
10212RSS
10 Front access panel DR120RL
Swegon reserves the right to alter specifications.
18 www�swegon�com
R120.211112

0
50
100
150
200
250
300
350
400
450
500
020406080100 120140
100%
87%
81%
76%
71%
67%
63%
60%
57%
54%
50%
46%
Extract air
Available pressure, Pa
Airflow, l/s
7. Technical data
7.1 Sizing
500
450
400
350
300
250
200
150
100
50
0
0 20 40 60 80 100 120 140
100 %
87 %
81 %
76 %
71 %
67 %
63 %
60 %
57 %
54 %
50 %
46 %
Supply air
Available pressure, Pa
Airflow, l/s
Power consumption
Total power consumption, W
Airflow, l/s
0
50
100
150
200
250
300
020406080 100 120 140
100%
87%
81%
76%
71%
67%
63%
60%
57%
54%
50%
46%
Fan setting
%
Sound power level broken down into octave bands, Lwokt, dB Weighted sound
power level,
LWA, dB(A)
63
Hz
125
Hz
250
Hz
500
Hz
1000
Hz
2000
Hz
4000
Hz
8000
Hz
54 67 60 55 50 48 42 36 22 54
57 67 63 57 52 51 45 39 27 56
60 67 63 58 53 52 46 41 29 57
63 67 65 60 54 53 48 43 32 58
67 71 66 61 56 55 50 45 35 60
71 72 68 62 57 56 52 46 36 61
76 74 70 64 59 57 54 48 38 63
81 75 71 65 59 57 54 48 40 64
87 77 73 67 61 59 56 50 42 65
100 78 75 69 63 60 58 52 44 67
Sound emitted to supply air duct
Acoustical performance
Thick line = SFP 2.0 or lower.
R120.211112
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Sound emitted to extract air duct
Fan setting
%
Sound power level broken down into octave bands, Lwokt, dB Weighted sound
power level,
LWA, dB(A)
63
Hz
125
Hz
250
Hz
500
Hz
1000
Hz
2000
Hz
4000
Hz
8000
Hz
54 64 46 48 43 37 33 23 845
57 64 48 49 45 38 34 24 946
60 62 58 51 46 39 35 26 11 49
63 64 61 51 48 40 36 27 13 50
67 63 63 53 49 41 38 29 15 52
71 63 63 55 50 43 40 31 17 53
76 66 66 56 52 44 41 32 19 55
81 63 66 57 54 45 42 33 20 55
87 66 68 58 55 46 43 35 22 57
100 66 68 59 55 46 43 35 22 57
Sound emitted to extract air duct of the cooker hood
Fan setting
%
Sound power level broken down into octave bands, Lwokt, dB Weighted sound
power level,
LWA, dB(A)
63
Hz
125
Hz
250
Hz
500
Hz
1000
Hz
2000
Hz
4000
Hz
8000
Hz
54 63 -49 44 33 31 25 13 45
57 65 -51 45 34 32 27 15 47
60 63 53 53 46 35 33 28 17 48
63 59 47 53 47 37 35 30 18 48
67 61 59 55 48 37 36 31 20 50
71 64 57 56 49 39 37 32 22 51
76 69 59 57 51 40 39 34 24 53
81 68 61 59 52 41 40 36 26 54
87 66 64 60 52 43 41 37 27 55
100 67 65 61 53 43 42 38 29 56
Sound emitted to the surroundings
Fan setting
%
Sound power level broken down into octave bands, Lwokt, dB Weighted sound
power level,
LWA, dB(A)
63
Hz
125
Hz
250
Hz
500
Hz
1000
Hz
2000
Hz
4000
Hz
8000
Hz
54 44 46 37 28 23 12 - - 30
57 46 46 38 29 24 13 - - 35
60 46 46 39 30 25 14 - - 35
63 44 47 40 30 26 14 - - 36
67 45 47 42 33 28 17 - - 37
71 44 48 43 34 29 19 10 -38
76 46 49 44 34 29 20 11 -39
81 47 50 45 36 32 21 12 -40
87 49 52 46 37 33 22 14 -42
100 51 54 48 39 34 24 15 -43
Swegon reserves the right to alter specifications.
20 www�swegon�com
R120.211112