Swegon CASA R3 Smart, CASA R2 Smart Installation, Commissioning And Maintenance Instructions
R3_g_EN-t
Installation, commissioning and maintenance instructions
CASA® R3 Smart
2
R2.060219
All rights to changes reserved.www.swegon.com
NOTE! The manual’s original language is
English.
Contents
Technical Guide
for design engineers, installation engineers and service personnel
The section 1 describes the high lights of the unit.
All information for mechanical installation is found from section 2.
Instructions for basic commissioning is found from section 3.
Units external connections to the systems or devices like Modbus, DI, DO, AI, etc. is found from section 4.
Units functions description and usage is found from section 5.
Units periodically maintenance and service is described in section 6.
If a malfunction or alarm occurs the instructions are found from section 7.
All technical data is found from section 8.
Important information ............................................. 3
1. General Description .............................................. 4
1.1 Enclosure .........................................................................4
1.2 Fans ................................................................................. 4
1.3 Demand ventilation control ..............................................5
1.4 Filter ................................................................................5
1.5 Heat exchanger ................................................................5
1.6 Temperature ....................................................................5
1.7 External connections ........................................................ 5
1.8 Protective functions .........................................................5
2. Installation ............................................................. 6
2.1 Ventilation unit’s installation site ......................................6
2.1.1 Wall mounting ........................................................6
2.1.2 Ceiling mounting ....................................................6
2.1.3 Installation of the cooker hood directly on the
ventilation unit ................................................................. 7
2.1.4 Installation of the cooker hood separately from the
ventilation unit ................................................................. 7
2.2 Condensate discharge ......................................................8
2.3 Ducts ............................................................................... 8
2.3.1 Commissioning the bypass for the kitchen...............9
2.4 Electric and control cables ..............................................10
2.5 Installation of the Smart control panel ............................10
2.6 Accessories ....................................................................11
2.6.1 Smart sensor package ...........................................11
3. Basic commissioning ........................................... 12
3.1 Air flows ........................................................................ 12
3.1.1 Setting the basic airflows.......................................12
3.1.2 Travelling ...............................................................12
3.1.3 Maximum automatic boost....................................12
3.1.4 General notifications ............................................. 12
3.2 Cooker hood function ....................................................13
4. Units external connections................................. 14
4.1 Modbus ......................................................................... 14
4.2 Switch inputs (DI) ........................................................... 15
4.3 Voltage inputs (AI) .........................................................15
4.4 Relay outputs ................................................................. 16
4.5 Voltage outputs (AO) .....................................................16
4.6 Smart Access .................................................................16
5. Functions and use ............................................... 18
5.1 Functions ....................................................................... 18
5.1.1 Shortcuts ..............................................................18
5.1.2 Summer night cooling ........................................... 18
5.1.3 Cooker hood function ........................................... 19
5.1.4 Central vacuum function ....................................... 19
5.1.5 Fireplace function ..................................................19
5.1.6 Automatic Home/Away/Boost function ..................19
5.1.7 Automatic humidity control ...................................20
5.1.8 Automatic air quality control .................................20
5.1.9 Weekly program ....................................................20
5.2 Supply air temperature control .......................................21
5.2.1 Temperature control settings ................................21
5.2.2 Temperature measurement ....................................21
5.2.3 External heating and cooling units ......................... 21
5.3 Anti-frost protection ......................................................22
5.4 Restoring factory settings ............................................... 22
5.6 Changing settings password ..........................................22
5.7 Use ................................................................................ 22
6. Service .................................................................. 23
6.1 Service reminder ............................................................23
6.2 To open the ventilation unit ...........................................23
6.3 Filters ............................................................................. 23
6.4 Heat exchanger ..............................................................23
6.5 Fans ............................................................................... 24
6.6 Other servicing ............................................................... 24
6.7 Diagnostics ....................................................................24
7. Alarms and Troubleshooting .............................. 26
7.1 Alarm indication, cooker hood ....................................... 26
7.2 Alarm indication, control panel ......................................26
7.3 Troubleshooting ............................................................. 26
7.4 Alarm descriptions .........................................................27
8. Technical data ...................................................... 28
8.1 List of components ........................................................28
8.2 Air flows (EN 13141-4) ...................................................29
8.3 Connection outputs ....................................................... 29
8.4 Acoustic data ................................................................. 30
8.5 Electrical wiring diagram ................................................ 31
8.5.1 Ventilation unit .....................................................31
8.5.2 R3, CASA Jazz cooker hood and control panel ......31
8.6 Control diagram ............................................................32
8.7 Measurements ...............................................................33
8.8 Weights .........................................................................34
8.9 Ventilation unit’s codes ..................................................34
8.10 Accessories for installation ...........................................34
Commissioning form ............................................... 35
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Important information
Installation and commissioning
Only qualified personnel should carry out installation,
configuration and commissioning. Only a qualified
electrician is allowed to make electrical installations in
accordance with national regulations.
The national standards and regulations dealing with
unit installation, configuration and commissioning
must be followed.
Do not use the ventilation unit until all work that
produces large quantities of dust or other impurities
has been completed.
The duct connections of the ventilation unit must be
covered by lids until it is mounted at its final location.
Make sure that the ventilation unit, filters and ducts
are clean and that there are no loose objects in them
before you commission the ventilation system.
Electrical work and connections
If you carry out voltage tests, measure the electrical
insulation resistance at various points or perform
other remedial measures that could damage sensitive
electronic equipment, you must first isolate the
ventilation unit from the electrical supply grid.
It is recommended that all Smart ventilation units
should be equipped with a surge protection device.
It is recommended that all Smart ventilation
units should be equipped with a residual current
circuit breaker. Comply with local electrical safety
regulations when you install electrical equipment.
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 it discharges.
Models with water-based air heater
When there is a water-based post heater in the
ventilation system the system should be equipped
with damper in outdoor air duct so that the air
heater cannot freeze during a power failure and unit
freezing protection works correctly.
Separate extract air
(bypass for cooker hood)
The separate extract air duct runs past the heat
exchanger. The separate extract air duct should only
be used while cooking and the extract air from the
kitchen should be conducted to the ventilation unit’s
extract air duct. Note that separate extract air flow
affects the ventilation unit’s annual efficiency.
Condensation
The surface temperature of the ventilation unit can
drop down to 12 °C during periods of low outdoor
temperature and depending on the moisture content
of the air surrounding the unit, moisture may condense on the surface. Condensation should be taken
into account when choosing furnishings that are to
be installed in the vicinity of the ventilation unit.
Balancing functions
It is recommended to use external preheater when
balancing functions are used at temperatures below
-10 °C.
To open the ventilation unit for service
Always isolate the ventilation unit’s power supply cable
before you open the inspection door! Wait a few minutes before you open the inspection door so that the
fans are stopped and electrical heaters are cooled.
There are no components inside the electrical box
that can be serviced by the user. In case of malfunction, do not restart the ventilation unit before the cause
of the fault is identified and fixed.
Filters
The ventilation unit must not be operated without
filters! Use only original Swegon filters. Find the correct filter in the section ”Technical data”.
Warranty conditions
Warranty conditions are included in delivery of the
unit as a separate document.
Declaration of conformity
Link to the declaration of conformity:
www.swegonhomesolutions.com
(Toolbox/Find a pdf)
!
This document is intended for everyone involved in the installation work for or the use of a Swegon CASA ventilation unit. Read this Instructions for Use before you use the ventilation unit. Save the Instructions for Use for
future use. This document is available in our website.
The ventilation unit is not designed to be used by children (below 8 years old) or by persons whose senses, physical or mental capacity or a lack of knowledge and experience limits safe use of the ventilation unit. Such persons
may use the ventilation unit if supervised by a person who is responsible for their safety, or according to the
instructions.
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1. General Description
The most important function of the ventilation system
is to ensure clean and fresh indoor air and to remove
moisture. The air in the home should be changed at
a continuous and sufficient rate to ensure a pleasant
indoor climate and avoid damage to building elements
caused by dampness.
Swegon CASA R3 is designed for detached houses,
multi-dwelling houses and holiday cottages less than
150 m
2
. The ventilation unit can be used both for new
construction and renovation projects. The R3 ventilation
unit can also be installed together with a cooker hood
instead of a spice rack above the cooker.
• Air flow interval: 25–80 l/s
• Heat exchanger temperature efficiency up to 86 %
(EN 308)
• Built-in humidity sensor as standard.
• Continuous control of the supply air temperature
• Energy-efficient and quiet EC fans
• Available in right and left hand design (supply air)
• Can be installed directly above the cooker together
with the cooker hood.
• The ventilation unit has modular dimensions and
can be mounted together with a standard kitchen
cabinet.
• CASA Smart control system
• The ventilation unit can be controlled from a control
panel, from the cooker hood, via external switches or
Modbus.
• Energy class A according to the Ecodesign directive
1.1 Enclosure
The ventilation unit conforms to enclosure class IP34
when the cover is closed.
1.2 Fans
Swegon CASA R3 is equipped with energy efficient EC
fans.
The fans can be controlled in four operating modes and
steplessly with Smart functions:
• Boost = maximum commissioned air flow is used
when the ventilation requirement increases, e.g. for
cooking, showering or drying laundry.
• Home = normal air flow. In normal cases guarantees
healthy indoor air quality.
• Away = low air flow. Reduces power consumption
when no one is in the house.
• Travelling = very low air flow and lower supply air tem-
perature. Used when house is empty long period. (Can
only be selected from a Smart control panel.)
The unit’s weekly timer can change operation modes
and temperature setpoint at the preset times. It is always
possible to override the weekly timer and change the
operation mode from a control panel or a Smart cooker
hood.
The delivery includes:
• Ventilation unit, R3
• Wall mounting bracket
• Cover plate for locks (2 pcs.)
• Instructions for Use (FI, SE, EN, NO, DE)
• Installation, commissioning and maintenance
instructions (FI, SE)
• Warranty Conditions
• “Remember to change the filter” decal
• Product information sheet
Standard connections:
• Power cord with earthed plug (2 m)
• Modular cable with RJ9 connector (2 pcs., 1.5 m)
• Freely configurable I/O contacts for connection of
accessories (2 pcs.)
Accessories:
• Modular cable, 20 m, adapter
• Smart control panel
• Roof mounting frame
• Mounting frame with vapour barrier
• Water trap
• Condensate discharge hose
• Cover plate for inspection door (white or stainless
steel):
• SEC: IO extension cable with Modbus RTU
• SEM: IO extension module with relay and Modbus
RTU (input and output connections)
• Waterborne air heater/air cooler for installation in
ducts
• Electric air heater for installation in ducts
• Smart sensor (RH, RH+CO
2
, RH+VOC)
• Set for constant duct pressure
• Smart Access mobile user interface
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You can select an air flow boost time of 30, 60 or
120 minutes or continuous boost from a Smart control
panel. When the unit is controlled from a cooker hood,
the fan’s air flow boost time is 60 minutes.
1.3 Demand ventilation control
Ventilation can be controlled by demand with following
Smart functions:
• Stepless Home/Away/Boost Control = ventilation
level is controlled according to the CO
2
level.
• Humidity Control = ventilation is boosted steplessly
according to the moisture load caused by people.
• Air Quality Control = ventilation is boosted steplessly
according to VOC level.
• Smart Balancing Functions = supply and extract air
flow balance is controlled to maintain room pressure
level constant. i.e. cooker hood, fireplace or central
vacuum cleaner functions.
• Smart Cooling Boost = ventilation is boosted
according to cooling need.
1.4 Filter
The ventilation unit is equipped with supply and extract
air filters according to filter class ISO ePM1 55 % (F7).
The need of filter replacement is indicated on the
control panel and on a CASA Smart cooker hood.
1.5 Heat exchanger
The ventilation unit is equipped with a efficiency controlled rotary heat exchanger. Heath exchanger is
controlled either to maintain constant supply air temperature or to achieve maximum energy efficiency.
1.6 Temperature
The supply air temperature is controlled with heat exchanger and if needed with heating or cooling element.
In Comfort mode constant supply air temperature is
maintained by rotor efficiency control and heating and
cooling control.
In Eco mode maximum heating / cooling efficiency is
maintained. Supply air temperature is controlled only in
heating or cooling period.
The temperature control setpoint can be adjusted from
user panel, weekly timer, by operating mode or by room
temperature.
Automatic summer night cooling detects the need
for cooling. Function lowers supply air temperature setting and controls the rotor to achieve the best possible
cooling effect.
1.7 External connections
All connections can be made without opening the
electrical box. Plug-in modules are available for external
connections. Wide variety of IO functions are available.
The ventilation unit is equipped with In-build Modbus.
Modbus cabling can be made easily with external cable
(SEC) or module (SEM). Unit can be fully controlled
with Modbus and all external IO´s can be configured to
Modbus usage.
1.8 Protective functions
The heat exchanger freeze protection
The defrosting function guarantees continuous ventilation and maintains units performance even during
extreme conditions.
The fan overheating protection
The fan overheat protection stops the fan if the temperature rises too high and is reseted automatically. If protection stops the fans an alarm is generated.
Rotor quard
Rotor quard detects that the rotor is working.
Malfunction generates an alarm.
Electric air heaters
The electric heater is equipped with automatic and
manual overtemperature protection. Overheat cuts the
heating circuit and generates an alarm.
Water-based air heaters
The ventilation unit with water-based air heater/cooler
has a temperature sensor that protects the coil from
freezing. Protection generates the alarm and starts
freezing prevention. If freezing prevention is not enough
the unit is stopped and demanded shut-off dampers are
closed. Freezing prevention is reseted automatically.
Cold supply air
The ventilation unit has built-in condensation protection.
If the supply air is too cold, the ventilation unit stops and
an alarm is generated
High temperature
If supply air or units internal temperature is detected
dangerously high the unit is stopped and an alarm is
generated.
Temperature sensors
If a sensor fault is detected, the ventilation unit runs in
restricted mode. The ventilation unit’s returns to normal
mode once the fault has been corrected.
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2.1.2 Ceiling mounting
The ventilation unit can also be mounted in a ceiling
mounting frame on the ceiling (can be ordered as an
accessory).
Fasten the ceiling mounting frame in ceiling anchor
sleeves with four M8 threaded rods. The length of rods
must be adjusted so that they will be positioned approx.
15–20 mm under the inner surface of the ceiling
mounting frame. Install the ceiling mounting frame
approx. 35–55 mm below a suspended ceiling.
The ceiling mounting frame must not be used as
part of a support structure for the ducts, the duct
support must be sufficient even without the support
effect provided by the ceiling mounting frame.
Secure the locking hooks in mounting openings on
the ventilation unit’s top side by means of pop rivets.
Position the hooks so that the sharp point is facing the
rear side of the ventilation unit.
The hooks must absolutely not be secured with
rivets directly above the ventilation unit.
The points of the hooks face the rear part of the ventilation
unit and they are to be slipped into the unit’s notches before
you secure them with rivets.
Hang the ventilation unit up in the mounting frame
so that the rear of the unit engages in the suspension
plate. Lift the ventilation unit up against the ceiling
mounting frame so that the locking hooks on both sides
engage into position. The unit is firmly secured if the
screw heads on the front part of the ceiling mounting
frame return to their original positions. The ventilation
2.1 Ventilation unit’s installation site
The temperature in the space where the unit will be
installed must be more than +10 °C. The ventilation unit
can be installed in a machine room, laundry room, store
room, etc.
The ventilation unit can also be mounted in the kitchen
above the cooker. Swegon CASA Jazz cooker hood can
be connected directly to/below the ventilation unit.
Due to the risk of disruptive noise, the ventilation unit
should not be installed on the wall towards the living
room or bedroom.
Make sure it is easy to access the power and control
cables as well as accessories.
The ventilation unit can be mounted either on the wall
with a wall mounting bracket included in the supply or
on the ceiling with a ceiling mounting frame which is
available as an optional extra.
The unit should be mounted as near as possible to a
wall or ceiling. The space between the ventilation unit
and the wall/ceiling must be insulated to prevent the
transmission of sound through the wall behind the unit
to the adjacent room.
2.1.1 Wall mounting
A wall mount is supplied together with the ventilation
unit.
If it is a question of a light partition wall, the wall must
be reinforced with horizontal studs that support the
weight of the ventilation wall. In addition, Swegon also
recommends that the wall be insulated with mineral
wool or similar insulation for preventing sound from
propagating to other rooms.
Screw the wall mount firmly in horizontal position onto
the wall where a wall stud will support the weight
of the unit. Lift up the ventilation unit onto the wall
mounting bracket so that the ears on the bracket
engage in the corresponding notches at the top on the
backside of the unit.
The door of the ventilation unit and the fans can be
dismantled to facilitate lifting the ventilation unit. See
the ”Servicing” Section.
2. Installation
1
2
1. Horizontal stud for the ventilation
unit’s mounting bracket
2. Acoustic insulation
1
2
3
1. Insulated wall
2. Horizontal stud
3. Wall mounting
bracket
Wall mounting bracket’s dimensions
299 299
505
68
54
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unit can then be secured into position by screwing in
the locking screws to their end positions.
1
2
3
1. Suspension plate
2. Locking hooks
3. Lock screw
2.1.3 Installation of the cooker hood directly on
the ventilation unit
Swegon CASA Jazz cooker hood can be connected
directly below the ventilation unit. In this case, a twosocket socket is required. Make sure that the spacing
between the cooker hood and cooker corresponds with
local regulations.
Connect the control and power cables that come out
of the bottom of the ventilation unit to the connector
on the cooker hood. Secure the cooker hood to the
ventilation unit with the screws supplied.
The ventilation unit can be controlled from the cooker
hood control panel.
The electric and control cables as well as the connection
for the cooker hood’s extract air are located under the
cover plates in the bottom of the unit.
99 mm
The fan’s
mounting screws
The kitchen airflow from the
cooker hood during operation in
the boosted flow mode
Condensation/sound
insulation
The kitchen’s general
ventilation via extract air
register
∅ 125 mm
2.1.4 Installation of the cooker hood separately
from the ventilation unit
All compatible Swegon CASA cooker hoods can be
mounted separately from the ventilation unit, the
extract air is then led from the cooker hood via a duct to
an extra duct connection on the top of the ventilation
unit. The duct between the cooker hood and the
ventilation unit must be installed in such a way that
makes it possible to clean it.
The ventilation unit can be controlled from the cooker
hood control panel.
∅ 100 mm
∅ 125 mm
∅ 125 mm
The kitchen’s general
ventilation via extract
air register
The kitchen airflow from
the cooker hood during
operation in the boosted
flow mode
Condensation/sound
insulation
Important
The 100 mm duct outlet on the kitchen
bypass should be fitted with a taper piece
for transition to 125 mm as near to the unit
as possible.
!
!
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2.2 Condensate discharge
As a rule, no condensate discharge connection
is needed under dry ambient conditions and in
combination with a rotary heat exchanger. A certain
humidity load exists in homes and a condensate
discharge line should be connected to the ventilation
unit, if considerable moisture is produced in the home.
Connect the discharge hose to the ventilation unit’s
condensate discharge connection (3/8” male threads).
The condensate must be channelled to a floor drain,
the water trap of a sink or the equivalent by means of
a tube or a pipe having an inner diameter of at least 12
mm. The tube must not be connected directly to the
sewer. The tube must not have a second water trap or
be run horizontally. The damming height of the water
trap should be at least 100 mm.
The condensate discharge connection is plugged
from the outside of the ventilation unit. Remove
the plug when you begin using the condensate
discharge connection. Check that the condensate
discharge outlet is not clogged and check its outflow
by pouring water on the bottom of the ventilation unit.
The condensate discharge connection is located on the
rear of the unit under the rotary heat exchanger.
A hose to lead off the condensate is available as an
accessory (product: CDH3). The hose has a ready-made
loop that serves as a water trap.
200 mm
3/8" male
thread
There is a metal water trap available as an accessory
(UVL).
2.3 Ducts
Important
Check whether the ventilation unit is in
a left or right-hand version, to be sure to
connect the ventilation ducts to the correct
duct connections.
!
!
A. Right-hand version
B. Left-hand version
1. Supply air
2. Extract air
3. Outdoor air
4. Exhaust air
5. Extract air from the cooker hood
Install the ducts according to the ventilation drawings.
Do not mount ducts directly against structural elements
to avoid the propagation of sound.
Insulate the ventilation ducts to prevent leakage of heat,
cold and sound, as well as water condensing. Fire insulate
the ducts according to national regulations. Pay particular
attention to insulate cold ducts without gaps in the
insulation, so that moisture cannot condense.
The thickness of the insulation must be sufficient for the
insulation material, for the climate area and according
to local regulations. Most manufacturers of insulation
material offer calculation programs for the calculation of
correct and sufficient insulation.
Supply air duct should be fitted with acoustic insulation
along the stretch between the unit duct outlet and
the sound attenuator, so that fan sound will not be
propagated out into the room.
Generally, ventilation ducts should be insulated as follows:
• Insulate the outdoor ducts that pass through warm
spaces.
• Exhaust air ducts should always be insulated in
accordance with national regulations.
• Insulate supply air ducts in cold spaces.
• Insulate extract air ducts in cold spaces.
• If the air inside the duct is colder than in the
surroundings; the insulation should be protected by a
vapour barrier.
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It is important to the ensure the tightness of the vapour
barrier at the penetration collars. We recommend the
use of a mounting frame with vapour barrier designed
for the ventilation unit (accessory, PR085YP) for sealing
the vapour barrier.
2.3.1 Commissioning the bypass for the kitchen
The ventilation unit has extra duct connections for
extract air from the cooker hood on its top and
bottom sides. The extract air from the cooker hood
flows directly out through the unit’s extract air fan and
does not pass the heat exchanger. For this reason, the
kitchen's general ventilation must not take place via the
cooker hood. On delivery, both of the duct outlets that
bypass the heat exchanger are fitted with covers.
If the duct connection designed for bypass from the
kitchen is used, the duct between the cooker hood and
the unit must be installed in such a way that makes it
possible to clean it.
Important
The kitchen bypass is intended for use
when the air flows from the cooker hood/
kitchen are boosted. The kitchen’s general
ventilation must take place via the extract
air duct. If the general ventilation takes
place continuously via the cooker hood, the
supply air and extract air flows through the
heat exchanger will be out of balance, and
this will lower the efficiency and impair
the ventilation unit’s anti-freeze protection
functions during the winter.
!
!
Dismantle the cover panel on the top of the
ventilation unit
How to open the ventilation unit and remove the guard
plates are described in the section entitled: ”Service”.
• Open the ventilation unit’s inspection door and
remove the guard plates in front of the heat
exchanger.
• Remove the screws of the guard plate that covers the
duct connection.
• Pull out the cover together with its insulation.
• Secure the guard plates for the extract air fan and
the heat exchanger with screws at their positions
and close the inspection door. The duct connection
spigots are now ready for connection to ducting.
Dismantle the cover panel on the bottom of the
ventilation unit
How to open the ventilation unit as well as how to
remove the guard plates and heat exchanger are
described in the Section entitled: ”Service”.
• Open the ventilation unit’s inspection door and
remove the heat exchanger guard plates. Withdraw
the heat exchanger from the unit.
• Remove the screws of the guard plate that covers the
duct connection.
• Pull out the cover together with its insulation.
• Push the heat exchanger back into the unit, secure
the guard plate with screws at its position and close
the inspection door.
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2.4 Electric and control cables
The ventilation unit has a power cable with earthed plug.
The plug serves as the ventilation nit’s main switch and
should be connected to an easily accessible wall socket.
There is a modular cable on top of the ventilation unit
to control the unit. The modular cable for the cooker
hood is located under the cover plate at the bottom
of the ventilation unit. The maximum length of the
modular cable is 40 metres. If you route the modular
cable within a building element, the cable must be
routed in a ∅ 20 mm conduit, bearing in mind any
subsequent cable replacement.
Ensure during the installation of the ventilation unit that
it is easy to access the cable connectors, among others,
for servicing and setting up.
Accessories are either connected to the ventilation
unit’s four-way connector (2 extra functions) or to the
external connection modules (3 extra functions). The
cables are routed through the cable entries that are
inside and on top of the ventilation unit. The connection
of accessories is described in the section “External
connections”. Connection cables to connection modules
and accessories are not included in the supply.
A. Cable entry for accessory cables.
B. Terminal blocks for connection of accessories.
B
A
Important
According to national regulations only a
qualified electrician may carry out electrical
installations.
!
!
2.5 Installation of the Smart control panel
A maximum of two Smart control panels can be connected to the ventilation unit. These should be configured with different ID numbers (Settings/Display/
Display ID). A Smart control panel can be mounted up
to 40 metres from the unit (using 2 x 20 metre long
modular cables).
The front panel on the Smart control panel is released
using a screwdriver to push the retaining clips through
the holes on either side.
If several control panels are connected in chain, the
middle panel’s bus termination is moved to the “Open”
position. The jumpers do not need to be adjusted if only
one control panel is used.
The modular cable can be connected to any outlet
socket on the panel.
Finally, refit the front panel.
Bus termination: OpenBus termination: Terminated
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2.6 Accessories
Installation instructions for accessories are included in
the delivery of the each product.
2.6.1 Smart sensor package
Smart Sensor package is a combination sensor:
• Humidity sensor (SRH)
• Humidity and carbon dioxide sensor (SRHCO2)
• Humidity sensor and VOC sensor (SRHVOC).
The ventilation unit has a connection cable for the
sensor package. The sensor package is attached using
the supplied screw. On the R3 ventilation unit, the
installation position for the Sensor package is located
under the extract air filters in the extract air chamber.
The position of the sensor package in the ventilation
unit is shown in the image below. The extract air filter
must be dismantled from the ventilation unit while the
installation is performed.
All sensor combinations are encapsulated in the same
way. If there is a sensor package version installed in the
ventilation unit, you can replace it with an optional
sensor package. See the section Functions and use for
information about the sensor functions.
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