Swegon CASA R120 Operator's manual

HOME VENTILATION
►Ventilation unit for residential houses, multi-storey
buidings and holiday cottages under 230 m2. The unit
is equipped with rotary heat exchanger. Suitable also
for renovation projects.
►Maximum air volume: 120 l/s.
►Temperature efficiency: up to 80 %.
►Low sound level.
►For installation in a machine room, storage space,
laundry room, etc.
►A separate extract air connection for the cooker hood,
and the extract air does not pass the heat exchanger.
►The ventilation system can be controlled from a sepa-
rate control panel or from the cooker hood.
►Premium control technique.
Swegon CASA®R120
Ventilation unit with rotary heat exchanger
R120_g_EN-p

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The Swegon CASA R120 with the front panel open.
Technical data
General
The Swegon CASA R120 is an ideal ventilation unit for
homes and similar premises. The unit has a RECOnomic
rotary heat exchanger for high heat recovery perfor-
mance.
The ventilation unit is designed to be mounted on a wall
by means of the installation kit included in the supply. It is
also possible to mount the unit against the ceiling with a
ceiling mounting frame, available as optional equipment.
Casing
The casing is made of double-skin sheet steel with an
intervening layer of cellular polyethylene as insulation.
The external surfaces of the ventilation unit have a
powder-painted, baked finish in a white tone (RAL 9016),
the hinged front panel likewise, which is easy to open for
inspection and servicing.
Fans
The fans have low-energy, economical, type EC direct-
current motors, whose power consumption is substan-
tially lower than that of traditional fans driven by AC
motors. The advantage of EC fans is that their speed
is variably controllable and their efficiency is high even
when they operate in the lower speed range. The power
supply and control cables have quick-fit connectors and
the fans can be easily removed from the unit, if required.
Filters
The unit has a class F7 fine filter for the supply air and a
class G3 wide-mesh filter for the extract air.
Heat exchanger
The ventilation unit has Swegon's patented RECOnomic
rotary heat exchanger. The heat exchanger rotor is
composed of aluminium foil which forms a great number
of passages through which the air flows. As the rotor ro-
tates, heat is stored in the passages on the warm extract
air side, and is emitted to the cold air on the supply air
side. Even though the same surfaces are in contact with
both the extract air and the supply air, there is very little
risk that odour transfer will occur.
The temperature efficiency is approx. 80 %. A rotary heat
exchanger normally never freezes; it maintains its high
temperature efficiency regardless of the outdoor tem-
perature. The heat exchanger is driven by a motor of its
own.
The power supply and control cables have quick-fit con-
nections and the heat exchanger package can be unfas-
tened if required and withdrawn from the unit.
The energy-efficient heat exchanger in the Swegon CASA R120.

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Control System
General
The ventilation unit is controlled from the Premium
control panel, which is standard equipment and from
which you can also read and change settings. You can
also select three different fan speeds from the Premium
cooker hood.
Control from a Premium control panel
A Premium control panel can be installed at an optional
location, recessed in a junction box or surface mounted
on the wall. It can be located near the ventilation unit or
somewhere else, and then must be connected to the unit
via a 20 metre long modular cable. An extra control panel
can also be connected, if it is desirable to control the
ventilation unit from several places.
Selectable functions
• Application. The unit can be started and stopped.
• Fan speed. The ventilation unit fans can be set and
controlled to operate at five different speeds. The
display indicates the Away mode when the fans run
on their lowest speed and indicates the Home mode
when the fans are running at normal speed. The speed
of the supply air fan can deviate from that of the
extract air fan and the speed is controlled from the
control panel.
• Timer. The 24-hour/weekly timer has four programs.
You can set the desired times if you want the unit to
activate a desired function. The unit runs in the eco-
nomical minimum speed mode at other times (Away).
Functions: Home, Away, Boost, Cool. You can also
select the temperature of the supply air.
• Temperature. You can set the desired start tempera-
ture of the electric air heater for reheating (optional
item) within a range of 13–20 °C. You can also shut
off the reheating function.
• 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 higher than the supply airflow. This
function compensates the negative pressure by auto-
matically increasing the supply airflow. A signal from
a contact in the cooker hood or the central vacuum
cleaner is required.
• Summer operation. When certain limit values are
met, the ventilation unit stops the heat exchanger
(when heat recovery isn’t needed).
• Summer night cooling. The function starts, if certain
temperature conditions are complied with. The heat
exchanger in the unit stops, the electric air heater is
switched off and control system increases the speed of
the fans. The cooler air at night, for instance, is then
utilised for cooling the home. The fan speed can be
selected.
• Cooling energy recovery. In the summer, when
the indoor air is cooler than the outdoor air, the heat
exchanger starts up.
• Fireplace switch function. The function generates
excess pressure in the home and brings about an
updraught in the chimney, which prevents smoke from
entering the room when you light a fire.
• Display of the operating speed. The operating
speed is continuously shown as text on the display
screen.
• Service reminder. The service reminder interval can
be set to a period ranging between 3–12 months.
Automatic functions
• Alarms. Indicate the need for filter change or servicing
and a possible disruption in operation.
• Heat exchanger. Starts and stops in response to sig-
nals from the temperature sensor.
• Overheating protection. For the motors and the
electric air heater.
• Freeze protection. Prevents freezing in the heat
exchanger.
The ventilation unit is controlled from the Premium control
panel.

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Control from a Premium cooker hood
Selectable functions
The control panel of the cooker hood has three pushbut-
tons. Besides switching the cooker hood’s lighting on and
off, two control functions can be set as follows:
• Fan speed. The fans in the ventilation unit can be con-
trolled to operate at three speeds: away/home/boost.
The supply air fan can operate at a lower speed than
that of the extract air fan. The period for operation
in the boosted speed mode is preset to 60 minutes,
after which the ventilation unit fans will decelerate to
normal speed.
• The shut-off damper of the cooker hood. When
preparing food or carrying out a similar activity, a 30,
60 or 120 minute damper-open period can be se-
lected.
Demand regulation (control)
Demand control is possible with the following optional
equipment:
• Timer. 24-hour/weekly timer with settable times,
for when you want the ventilation unit fans to run
at normal speed. At other times, the unit runs in the
economical minimum fan speed mode.
• Boost timer. A manual pushbutton switch that can
be installed at an optional location. The pushbutton
switch can be located in a laundry room or the like, for
example.
• Fireplace switch. A manual pushbutton switch that
can be installed at an optional location. The function
generates excess pressure in the home and in this way
causes an updraught in the chimney, which prevents
smoke from entering the room when you light the
log-fire.Negative pressure compensation. When the
cooker hood is in use, negative pressure arises in the
home since the extract airflow becomes substantially
higher than the supply airflow. This function compen-
sates the negative pressure by automatically increasing
the supply airflow.
• Home−Away switch. Should be located close to the
front door. When the button is pushed, the ventilation
unit switches to operation in the Away mode and this
saves energy.
Control of the cooker hood
shut-off damper
30/60/120 min. indication Lighting
Ventilation unit fan speed
Away, home, boost
The control panel of the Premium cooker hood.
• Presence detector. The sensor detects movement in
the home and transmits a signal to the ventilation unit
to increase the fan speed. This function is well-suited
for use in premises not used around the clock, such as
in schools, day nurseries, offices, etc.
• Humidity sensor. The sensor detects when the
humidity rises and transmits a signal to the ventilation
unit to increase the fan speed. It can be located in a
sauna, a bathroom, a laundry room, etc.
• Carbon dioxide sensor. The sensor detects an in-
crease in carbon dioxide and transmits a signal to the
ventilation unit to increase the fan speed. It is suitable
for use in rooms where the number of occupants var-
ies.
• DDC control
• Modbus gateway

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Optional equipment
Optional equipment for the ventilation unit
Premium extra control panel
The extra control panel can also be installed, if it is desir-
able to control the ventilation unit from various places.
The second contact of the panel can be used for inter-
connecting two panels.
Reheating cassette
The 800 W electric air heater for reheating the supply
air downstream of the heat exchanger is a factory-fitted,
optional item for equipment. The air heater is switched
on when the temperature of the supply air is below a
preset value. The heater is wired by means of quick-fit
connectors.
Roof mounting frame
Facilitates mounting the ventilation unit on the ceiling.
Mounting frame with moisture barrier
The mounting frame has a moisture barrier which pre-
vents moisture from entering the insulation in the attic
joist floor and stops the air from the loft from coming
down into the rooms.
Replacement filters
The set of filters contains two class F7 fine filters and one
class G3 wide-mesh filter.
Reheating cassette
Premium control panel
Mounting frame with moisture barrier
Roof mounting frame
Replacement filters

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4
7
6
3
5
1
2
8
9
Supply air
Extract air
Outdoor air
Exhaust air
1. Swegon CASA R120 ventilation unit
2. Mounting frame with moisture barrier
3. Exhaust air hood
4. Sound attenuator
5. ILVA controllable cooker hood
6. Power roof ventilator
7. Supply air diffuser
8. Extract air register
9. Ceiling penetration seal
Premium Swing
controllable cooker hood
Sound attenuator
Ceiling penetration seal
Optional equipment
System products
The ventilation unit is a part of an economical and attrac-
tive ventilation system for homes. Swegon offers a com-
plete series of products for home ventilation. In that all
the components are supplied by the same subcontractor,
you are assured that they operate reliably together and
this enables you to select properly sized products. This
makes it possible, for instance, to control the ventilation
unit from the cooker hood.
Cooker hoods
The elegant and practical cooker hoods are available in
several alternative models and materials. If you do not
want to connect the cooker hood to the ventilation unit,
you can select a Design cooker hood and connect it to a
power roof ventilator.
Ceiling penetration seal for duct
Provides a moisture-proof duct penetration point for sup-
ply air diffusers and extract air registers. Available in sets
of 5 for size ∅ 100, 125 and 160 mm ducts.
Supply air diffusers and extract
air registers

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Installation
Suitable installation locations are a laundry room, storage
space, attic etc. If the ventilation unit is located in a cold
space, it should be have thermal insulation, if required.
Secure the ventilation unit vertically to the wall using the
wall mounting bracket supplied with the unit. The wall
structure must be able to support the weight of a 78
kg ventilation unit. It is also possible to mount the unit
against the ceiling with a ceiling mounting frame, avail-
able as optional equipment.
The unit has an extra duct connection for extract air on
its upper side. The extract air from the cooker hood flows
directly out via the extract air fan of the unit and does
not pass the heat exchanger. The connection not used
should be blanked off by a cover or an end piece for spi-
ral ducts (not included in the supply). The extract air from
the kitchen should not be extracted via the cooker hood,
since this airflow bypasses the heat exchanger.
Installation alternatives
1. The Premium cooker hood connected via duct to
the ventilation unit
The extract air from the Premium cooker hood is con-
veyed via a duct to an extra duct connection on the
top of the ventilation unit. The ventilation unit can be
controlled from the control panel of the cooker hood or,
if required, also from a separate control panel.
2. Separate controllable cooker hood
The extract air from the controllable cooker hood should
be connected to a separate power roof ventilator. The
ventilation unit is controlled from a separate control
panel. The best way to control the power roof ventilator
is from the cooker hood control panel.
Extract air
Extract air from
the cooker hood
How the R120 operates.
Outdoor air
Supply
air
Exhaust air
1. A Premium cooker hood
connected via duct to the
ventilation unit.
2. Separate controllable
cooker hood and power roof
ventilator.

HOME VENTILATION
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5
4
3
1
2
6
1. Swegon CASA R120 ventilation unit
2. Mounting frame with moisture barrier
3. Exhaust air hood
4. Sound attenuator
5. Premium controllable cooker hood
6. Ceiling penetration seal
Bypass for kitchen
The Swegon CASA R series ventilation units make it
possible to install a so-called kitchen bypass. This is an
effective way to remove cooking odours from the kitchen
and ensures that it cannot return to the kitchen via other
ventilation ducts. If the cooker hood outlet air duct is
connected directly to the connection spigot on the venti-
lation unit, the extract air is conducted directly out via the
unit’s extract air fan, consequently the extract air never
comes in contact with the heat exchanger.
• Adequate suction power from the cooker hood
• Fewer ducts and roof penetration collars
• Less need for servicing
SUPPLY AIR
EXTRACT AIR
OUTDOOR AIR
EXHAUST AIR
COOKER HOOD AIR EXTRACTION
R120
Boosted extract air, up to 50 l/s
Separate extract
air from kitchen

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Sizing
Setting in % 65 73 85 100
Airflow, l/s 28 32 39 43
Extract air from the cooker hood
300
250
200
150
100
50
0
100 %
87 %
81 %
76 %
71 %
67 %
63 %
60 %
57 %
54 %
50 %
46 %
0 20 40 60 80 100 120 140
Total output, W
Airflow, l/s
Power consumption
Supply airflow
Available pressure, Pa
Airflow, l/s
500
450
400
350
300
250
200
150
100
50
0
100 %
87 %
81 %
76 %
71 %
67 %
63 %
60 %
57 %
54 %
50 %
46 %
0 20 40 60 80 100 120 140
Extract air flow
Available pressure, Pa
Airflow, l/s
500
450
400
350
300
250
200
150
100
50
0
100 %
87 %
81 %
76 %
71 %
67 %
63 %
60 %
57 %
54 %
50 %
46 %
0 20 40 60 80 100 120 140
R120 R120-L
Connection 230 V, 50 Hz, 1.1 A 230 V, 50 Hz, 4.6 A
Fans 238 W 238 W
Rotor motor 10 W 10 W
Air heater, reheat - 800 W
Total output 250 W 1050 W
Connection power

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Acoustic data
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
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

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Sound emitted to the surroundings
Fan
setting
%
Sound power level broken down into octave bands, Lwokt, dB Weighted
sound power
level
LWA, dB(A)
Sound pressure
level
10 m² sound
absorption
LP(10), 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 26
57 46 46 38 29 24 13 - - 35 31
60 46 46 39 30 25 14 - - 35 31
63 44 47 40 30 26 14 - - 36 32
67 45 47 42 33 28 17 - - 37 33
71 44 48 43 34 29 19 10 -38 34
76 46 49 44 34 29 20 11 -39 35
81 47 50 45 36 32 21 12 -40 36
87 49 52 46 37 33 22 14 -42 38
100 51 54 48 39 34 24 15 -43 39
*) Equivalent to a normally insulated room.

HOME VENTILATION
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The unit has a 230 V, 10 A mains plug connection.
Total power consumption
Excl. air heater for reheat: 250 W, 1.1 A
Incl. air heater for reheat: 1050 W, 4.6 A
Control from a Premium cooker hood
The supply includes two 3 m long cables with modular
contacts, which are used for connecting the ventilation
unit, cooker hood, control panel and the Modbus Gate-
way adaptor. The modular cable should be installed in a
min. ∅ 20 mm conduit.
Control from a Premium control panel
The control panel can be placed at an optional location. It
can be supplemented with e.g. an extra control panel or
a Modbus gateway, if you want the ventilation unit to be
controllable from several places.
Power connection
Premium control via Modbus Gateway
Cooker hood
(no provision for extension)
Premium
control panel
Modbus Gateway
Modbus RTU
R120
Mains power
plug connection
230 V, 10 A
Premium control panel, e.g. for entering
settings or service work
Cable with modular connectors
Cable with modular connectors
R120
Control from a Premium cooker hood
Mains power
plug connec-
tion 230 V,
10 A
Mains power
plug connection
230 V, 10 A
Extra control
panel
Premium cooker hood
Cable with modular connectors
Premium
control panel
R120
Cable with modular connectors
Control from a Premium control panel
Mains power
plug connection
230 V, 10 A
Extra
control panel

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Example diagram 1
PREMIUM CONTROL PANEL
If the installation is not fixed, the control panel can serve as a pure hand-held terminal for entering settings or carrying out service work.
In this case you must make sure that the connection contact is accessible.
Premium cooker hood
Modular cable Modular cable
230 V, 10 A
230 V, 10 A
2 x 0.5 Home - Away selector switch
Modbus gateway
DDC (remote monitoring)
- Emergency stop
- Operating status/fans
- Operating status/temperature
W80 EC
W100 EC
W130 EC
W230 EC
R85 EC
R120 EC
- Home-Away-Boost
- 24-hour/weekly timer
- Fireplace switch
- Alarm
Humidity sensor
CO2sensor/temperature sensor
Presence detector
Misc.
4 x 0.5
2 x 0.5
4 x 0.5
2 x 0.5
Modbus RTU
See separate instructions
E.g. 6 x 0.5
Example diagram 2
PREMIUM CONTROL PANEL
Premium cooker hood
Modular cable Modular cable
230 V, 10 A
Home - Away selector switch
DDC (remote monitoring)
- Emergency stop
- Operating status/fans
- Operating status/temperature
- Control of fan speed
- Control of temperature
When the control voltage is interrupted,
the control system returns to the user mode
for use by the occupants.
- Home-Away-Boost
- 24-hour/weekly timer
- Fireplace switch
- Alarm
Humidity sensor
CO2sensor/temperature sensor
Presence detector
W80 EC
W100 EC
W130 EC
W230 EC
R85 EC
R120 EC
Modbus gateway
Modbus RTU
See separate instructions
Misc.
230 V, 10 A
4 x 0.5
2 x 0.5
4 x 0.5
2 x 0.5
2 x 0.5
E.g. 8 x 0.5

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14 Swegon reserves the right to alter specifications. www.swegon.com/casa
Variants
Right-hand or left-hand version
In order to facilitate the installation the ventilation unit is
available in a right-hand (R) or left-hand (L) version. They
are mirror images of one another. This way you can select
a variant that offers the simplest possible system for ar-
ranging the ducting. This is important, since extra bends
in the ducting increase the pressure and the fans have to
overcome a heavier load.
4
KK
2
3
4
31
2
1
Swegon CASA R120 L Swegon CASA R120 R
Supply air 1
Extract air 2
Outdoor air 3
Exhaust air 4
Extract air from cooker hood K
Example diagram 3
PREMIUM CONTROL PANEL
Other cooker hood (not Premium)
Modular cable
Negative pressure
compensation
2 x 0.5
230 V, 10 A
230 V, 10 A Modbus gateway
W80 EC
W100 EC
W130 EC
W230 EC
R85 EC
R120 EC
- Home-Away-Boost
- 24-hour/weekly timer
- Fireplace switch
- Alarm
Humidity sensor
CO2sensor/temperature sensor
Presence detector
Misc.
DDC (remote monitoring)
- Emergency stop
- Operating status/fans
- Operating status/temperature
2 x 0.5
2 x 0.5
4 x 0.5
4 x 0.5
Modbus RTU
See separate instructions

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Dimensions
Weight: 78 kg.
Duct Connections
1234 5
Supply air
∅160
Extract air
∅160
Outdoor air
∅160
Exhaust air
∅160
Cooker hood’s
exhaust air
∅125
Wall mounting bracketSwegon CASA R120
600
119
60
10
598
597
604
119
299
479
108
126
457
254
13
2
5
4
13
Swegon CASA R120 R Swegon CASA R120 L
Condensate hose
location

HOME VENTILATION
16 Swegon reserves the right to alter specifications. www.swegon.com/casa
Ordering key
Ventilation unit
Ventilation unit Swegon CASA R120 Premium EC
R right-hand version 10212RRE
L left-hand version 10212RLE
Ventilation unit Swegon CASA R120 Premium EC
(with electric reheating)
R right-hand version 10212RREL
L left-hand version 10212RLEL
Control
Premium control panel, EN, SE, FI, NO, DE, FR PSP148
(incl. 20 m long modular cable)
Optional equipment
Humidity sensor 117KKH
Carbon dioxide sensor 117HDL
Temperature thermostat 117T
Presence detector 102LT
Fireplace switch 102TKC
Weekly timer/24-hour timer 105A1
Boost switch with timer 105TK
Modbus gateway PMB
Room temperature sensor PRTG
20 m modular cable with RJ9 connector PMK20
Reheating cassette (R/L) 10212RVM
Filter set, 1 pc. G3 + 2 pcs. F7 10212RSS
Ceiling mounting frame (R/L) 10212KA
Mounting frame with moisture barrier 10212YP
Water trap UVL
System products
• Cooker hoods
• Supply air diffusers and extract air registers
• Sound attenuator
• Ceiling penetration seal for duct, set of 5 pcs.
∅100 mm 102LT10
∅125 mm 102LT12
∅160 mm 102LT16