inVENTer iV-Office User manual

www.inventer.de
Installation instructions
iV-Ofce

2
2iV-O󰀩ce ventilation unit | Installation instructions
Trademarks, copyrights and property rights
inVENTer®, Xenion®, inVENTron®, Inventin and Clust-Air®are registered trademarks of
inVENTer GmbH.
The copyright to this document remains with the manufacturer.
Rights to all content and images: © inVENTer GmbH 2021.
All trademarks used in this document are the property of their respective manufacturers and are
hereby acknowledged.
Disclaimer
This documentation represents an translation of the original installation instructions.
After completion of the installation it must be given to the user (tenant, owner, property manage-
ment, etc.).
The content of this documentation has been checked for compliance with the described com-
ponents. Nevertheless deviations may still occur, therefore no guarantee of compliance can be
provided.
This documentation describes the functionality of the standard scope.
For reasons of clarity, the documentation does not purport to cover all details on all types of the
product and cannot cover every conceivable scenario for installation and assembly.
The illustrations in this document may di󰀨er slightly from the design of the product that you have
purchased. The same functionality is ensured despite any design deviations.
This documentation is updated regularly. Necessary corrections and appropriate supplements are
always included in subsequent editions. You can also nd the latest version at
www.inventer.de/downloads.
Company information
Publisher:
inVENTer GmbH Phone: [phone]
Ortsstraße 4a Fax: [phone]
07751 Löberschütz E-mail: [e-mail]
Germany Web: www.inventer.de
CEO: Annett Wettig
VAT ID number: DE 815494982
Jena District Court HRB 510380

3
3
iV-O󰀩ce ventilation unit | Installation instructions
Table of contents
1 User and safety instructions .................................................................................................. 4
1.1 User information............................................................................................................. 4
1.2 Safety instructions.......................................................................................................... 5
2 System overview: iV-O󰀩ce ventilation unit .......................................................................... 8
2.1 Construction................................................................................................................... 9
2.2 Function ......................................................................................................................... 10
2.3 Control elements............................................................................................................ 11
3 Preparing for installation ........................................................................................................ 12
3.1 Installation position......................................................................................................... 12
3.2 Position of the wall opening ........................................................................................... 13
3.3 Dimensions .................................................................................................................... 13
3.4 Sectional drawing of the ventilation unit......................................................................... 14
3.5 Dimensional drawings of components ........................................................................... 15
4 Installation and assembly....................................................................................................... 16
4.1 Check the scope of supply............................................................................................. 16
4.2 Create wall opening ....................................................................................................... 17
4.3 Laying the cables to the wall opening of the ventilation unit .......................................... 18
4.4 Installing the wall sleeve ................................................................................................ 20
4.5 Installing the ventilation unit's external termination........................................................ 22
4.6 Inserting the thermal accumulator insert........................................................................ 24
4.7 Installing the inner cover base plate............................................................................... 27
4.8 Electrical connection of the reversible fan...................................................................... 29
4.9 Check function and complete fan installation................................................................. 31
4.10 Installing the inner cover panel ...................................................................................... 32
5 Technical data.......................................................................................................................... 33
5.1 General specications.................................................................................................... 33
5.2 iV-O󰀩ce energy label according to ErP Directive, Regulation 1254/2014 ..................... 34
5.3 Specications according to ErP Directive, Regulation 1254/2014 ................................. 35
6 Scope of supply....................................................................................................................... 37
7 Troubleshooting ...................................................................................................................... 38
8 Warranty and guarantee.......................................................................................................... 39
9 Service...................................................................................................................................... 39
TABLE OF CONTENTS

4
USER AND SAFETY INSTRUCTIONS
4iV-O󰀩ce ventilation unit | Installation instructions
1 User and safety instructions
Thank you for purchasing this high quality product from inVENTer!
This section provides an overview of the basic safety precautions for safe and proper operation
of your ventilation unit.
1.1 User information
Safety and warning instructions
The safety and warning instructions in these installation instructions have a uniform structure and
are marked with a symbol on the left side of the instruction. A signal word in front of the text also
indicates the hazard level. If several hazard levels exist, the highest level safety instruction is
always used.
The safety and warning instructions contain the following information:
SIGNAL WORD: Type and origin of the hazard. Possible consequences of the hazard!
Measures to avoid the hazard.
The signal word indicates the severity of the potential hazard unless the preventive measures are
taken:
DANGER means: Imminent danger of serious injury or death.
WARNING means: Possible danger of serious injury or death.
CAUTION means: Direct danger of minor/signicant injury.
NOTICE means: Direct or possible risk of property damage due to an adverse event/state.
If you see these signs, ensure you observe the described measures to prevent possible hazards
and/or damage.
Other symbols used in this documentation
In addition to the safety instructions, the following symbols are used:
A TIP symbol indicates practical and useful tips for handling your ventilation system.
Before each step, any additional tools and materials required for the activity are listed.
Red bar over a graphic: graphic shows the interior wall.
Blue bar over a graphic: graphic shows the exterior wall.
► Action required: This prompts the user to perform a specic action.
Check the results requires you to check the results of the action you have performed.
Action focus: To be taken into account in the corresponding assembly step.

5
USER AND SAFETY INSTRUCTIONS
5
iV-O󰀩ce ventilation unit | Installation instructions
1.1 Safety instructions
The installation instructions are part of your iV-O󰀩ce ventilation unit and must be available at all
times (see www.inventer.de/downloads). When handing the system to a third party, the informa-
tion regarding access to the installation instructions must be handed over also.
Before performing any work on the unit/system, read the installation instructions carefully and
observe all notices that refer to the installation process in this section. Also note the safety in-
structions that precede the described handling instructions.
Non-observance of safety instructions could result in injury and/or property damage.
These installation instructions only cover the standard variant (referred to as the "Standard
variant" in the following text) of the iV-O󰀩ce ventilation unit. Information on the variants can be
found in the separate installation instructions for the respective components.
Intended use
The ventilation unit is designed to ventilate dwellings and similar residential spaces.
It is controlled via an inVENTer system control unit (hereinafter referred to as the "controller").
General information
• Always observe the relevant standards, regulations and guidelines when installing the equip-
ment / system. In particular also applicable building regulations, re safety regulations and
accident prevention regulations of the employers' liability insurance association.
• Use the unit/system exclusively for the applications that are described in this documentation
and only in conjunction with components that are recommended, authorised and described by
inVENTer GmbH in this documentation.
Changes or modications to the equipment/system are not permitted.
• Your ventilation system is exclusively designed for use in ambient temperatures between
-20 and 50°C.
• Trouble-free and safe operation of the equipment / system depends on proper transportation,
proper storage and installation, as well as careful operation and cleaning / care.
Installation and assembly
• CAUTION: The system may only be installed by qualied personnel.
• Before starting work, you should have a project plan showing the number of ventilation units,
the location of the ventilation units, the ventilation principle (cross ventilation, single room venti-
lation, extract ventilation) and the associated controllers. The exact positioning of the individual
units and control units must be checked at the installation site and, if necessary, adapted to the
local conditions with the involvement of the responsible planner or user. For optimum function-
ality, it is recommended to install the device at an appropriate place in the upper wall area.
• WARNING: For joint operation with open-ue and balanced-ue replaces, safety measures
must be taken to prevent a negative pressure from developing in the building. The responsible
chimney sweep and/or building planner decides which measures need to be carried out.
• NOTICE: The ventilation unit is not suitable for drying out buildings. Do not put it into operation
until the construction work has been completed.
• NOTICE: Contamination of components, e.g. by plaster residue, will damage the components!
Seal the ventilation unit/air outlets of the ventilation unit so they are dust-tight throughout the
construction work. Do not remove the thread locks until nal assembly.

6
USER AND SAFETY INSTRUCTIONS
6iV-O󰀩ce ventilation unit | Installation instructions
• NOTICE: Do not install the device near indoor air thermostats or in the immediate vicinity of/
above sensitive pictures or furniture.
• NOTICE: Observe the specied minimum clearances on both sides of the wall and frontally
to prevent unintentional mixing of di󰀨erent air ows and to ensure access to the device and its
components. A minimum distance of 1.2 m must be maintained between adjacent air openings.
(, page 12 f.).
• NOTICE: The wall sleeve must be integrated into the building envelope (airtightness level) in
accordance with the current state of the art, taking into account construction-related and physi-
cal specications ("RAL installation"). Material for this is must be provided on site.
• NOTICE: When bringing the wall construction up to the wall sleeve, observe the necessary
blocking levels to avoid interrupting the composite thermal insulation system. Consult your
planner before installation if you are at all uncertain!
• NOTICE: Install the wall sleeve with a slope of 1 - 2° to the exterior wall to ensure the drainage
of any condensate that may form.
• NOTICE: Do not install the ventilation unit in places where direct contact with water spray is
possible. Observe the specications of VDE 0100 when choosing the installation location.
• NOTICE: Store components standing outside the wall sleeve and do not throw them to avoid
damage and breakage of the components, especially the thermal accumulator.
• NOTICE: In order to avoid algae growth around the external terminations, the instructions
for installation must be followed exactly (apply all sealing tapes!). We recommend a biocidal
pre-treatment/water-repellent pre-treatment of the façade surface around the external
terminations. Consult your planner about this!
• NOTICE: When installing components in (exterior) walls with insulation, use insulation
wallplugs to ensure that the components are securely fastened.
Insulation wallplugs are not included in the scope of supply, they are available as an option!
• NOTICE: Only use permanently elastic sealing compound suitable for outdoor use to seal the
joints at all external edges!
• NOTICE: The device has scratch-sensitive plastic surfaces. Do not touch the components with
oily and/or dirty hands. Avoid contact with sharp or pointed objects, e.g. rings.
Cabling / connection of the reversible fan
• DANGER: The system's electrical connections may only be carried out by qualied
electricians.
• NOTICE: The ventilation unitoperates with protective extra-low voltage.
It must not be connected directly to the 230 V power grid.
• NOTICE: Laying cables whose sheathing is not resistant to plastering under plaster leads to
short circuits and cable re! Lay cables without a plaster-resistant cable sheath in the conduit.
• NOTICE: The use of too small a cable cross-section leads to too great a voltage drop and/
or contact is not guaranteed! For the fan BUS, use a cable cross-section of at least 0.75 mm²
(stranded wire). Use wire ferrules with collars to connect the strands.
• When using several ventilation units controlled by several controllers, you must ensure that the
ventilation units are synchronised with each other (see installation instructions for controllers).
You should connect all controllers via a mains fuse in the house distribution board.
If your unit has a fault, contact your nearest distributor or our technical service.
Any kind of use other than the intended use will exclude all liability claims.

7
USER AND SAFETY INSTRUCTIONS
7
iV-O󰀩ce ventilation unit | Installation instructions
Improper use
Any use that is not mentioned in the intended use section, is considered to be improper.
Especially do not install / operate the unit in areas which the following may occur:
• Environment containing strong oils or lubricants.
• Flammable, aggressive and corrosive gases, liquids or vapours.
• Extreme dust exposure.
• Ambient temperatures outside the range of -20 to 50 °C.
• Prevent obstacles that hinder access to, or removal of, components of the ventilation unit.
Qualied personnel
The equipment/system may only be set up, operated and cleaned in conjunction with this
documentation and the documentation for the controllers.
Installation, electrical connection and commissioning of the equipment/system may only be
performed by qualied personnel. Qualied personnel within the meaning of the safety notices
in this documentation are persons who are authorised to install, put it into operation and identify
equipment, systems and circuits in accordance with established safety procedures.
Conformity
The ventilation unit complies with the technical safety requirements and standards of electrical
appliances for domestic use. It conforms to current European Union directives and
United Kingdom standards::
• 2014/30/EC: Electromagnetic compatibility
• 2014/35/EC: Low voltage
• 2009/125/EC: Eco-design
• 2011/65/EC: RoHS

8
SYSTEM OVERVIEW: IV-OFFICE VENTILATION UNIT
8iV-O󰀩ce ventilation unit | Installation instructions
2 System overview: iV-O󰀩ce ventilation unit
The iV-O󰀩ce is a decentralised ventilation system with heat recovery and is designed for
increased air ow requirements (performance-plus device). The iV-O󰀩ce is suitable for
installation in new buildings as well as for retrotting in older buildings and is particularly suitable
for use in large living spaces and similar commercial premises (e. g. o󰀩ces, doctors' surgeries,
lounges, etc.). Installation is generally carried out in the exterior wall.
The ventilation unit consists of a wall sleeve in which the thermal accumulator insert is mounted.
A lockable inner cover conceals the iV-O󰀩ce discreetly from the interior. The lter integrated into
the inner cover ensures that no pollen or dust from outside enters the interior. Outside, a driving
rain-proof cover conceals the components of the ventilation unit.
The sound insulation lining made of Inventin, a material specially developed to reduce noise, is
inserted into the wall sleeve. The insulated wall sleeve incorporates the ceramic thermal accumu-
lator and inVENTron, two guiding vane elements and the Xenion EFP reversible fan. The guiding
vanes on both sides of the fan serve to straighten the air ow and ensure more e󰀩cient ow
through the thermal accumulator. The sound-absorbing Inventin lining and the unique geometry
of the Xenion EFP reversible fan e󰀨ectively reduce the passage of sound.
The standard length of the wall sleeve is 495 mm. For thicker walls, a wall sleeve and insert with
a length of 745 mm can be ordered as an alternative.
Both versions can be shortened on site.
The ventilation unit is controlled via one of the following inVENTer system controllers1):
• sMove • MZ-Home
Components
• Inner cover incl. ISO Coarse 60 % lter
• Thermal accumulator insert (thermal
accumulator, inVENTron and sound
insulation lining made of Inventin)
• Wall sleeve
• External termination2)
• Pollen and activated carbon lter (optional)
• Sound and wind protection accessories
(optional)
Models
The ventilation units of the iV-O󰀩ce product range di󰀨er in their external terminations. Additional
inner covers are also available. This documentation only contains information on the standard
version of the ventilation unit.
For information on the variants of the exterior and internal terminations, please refer to the
separate installation instructions for the respective component:
• Standard variant: iV-O󰀩ce ventilation unit with Flex O󰀩ce driving rain-proof weather protection
hood (white/grey/anthracite/custom colour).
1) The installation and operating instructions for the controller are not part of this documentation.
2) All external terminations are available in stainless steel or optionally in aluminium [increased salt resistance].

9
SYSTEM OVERVIEW: IV-OFFICE VENTILATION UNIT
9
iV-O󰀩ce ventilation unit | Installation instructions
1.1 Construction
Figure 1: Overview of the iV-O󰀩ce ventilation unit
Components
Thermal accumulator insert
(Thermal accumulator, inVENTron,
sound insulation lining made of Inventin)
Flair XL inner cover
External termination:
Flex O󰀩ce weather protection hood
1 Weather protection hood base plate
2 Flex O󰀩ce ring insert (pre-installed)
3 Weather protection hood cover
4 R-D250 wall sleeve
5 Recess for controller connecting
cable
6 Sound insulation lining (Inventin)
7 Thermal accumulator
8 Thermal accumulator handle
9 R-D200 guiding vane (wide)
10 Xenion EFP reversible fan
11 Slim guiding vane (narrow)
12 BUS plug connection
13 Guiding vane knob
Flex Oce
14 Flair XL adapter
15 Inner cover base plate
16 ISO Coarse 60 % dust lter
17 Inner cover panel
18 Spacer (4 x)
Wall sleeve
A
B
C
D
A
B
C
D
Standard variant
1
2
3
9
8
11
12
10
5
4
13
14
15
7
6
16
17
18

10
SYSTEM OVERVIEW: IV-OFFICE VENTILATION UNIT
10 iV-O󰀩ce ventilation unit | Installation instructions
1.1 Function
The iV-O󰀩ce ventilation system is used to provide ventilation for living spaces and living space-like
commercial premises. The combination of inVENTron, thermal accumulator and sound insulation
lining ensures maximum heat recovery with minimum sound emissions and maximum air ow.
The iV-O󰀩ce ventilation unit is a ventilation unit with
simple airow and works according to the principle of
heat recovery by changing the direction of the fan. The
integrated thermal accumulator charges itself with heat
energy from the indoor air as it ows to the exterior
(extract air). After 70 seconds, the Xenion EFP
reversible fan changes direction. When the fan changes
direction, it releases the stored heat energy into the
incoming outdoor air (supply air).
For this principle to work correctly and to ensure pressure stability in the room, the supply air
volume must always correspond to the extract air volume, i. e. at least two iV-O󰀩ce ventilation
units are required. These are operated in pairs in push-pull mode: another ventilation unit is
assigned to the ventilation unit that delivers supply air and at the same time removes used
extract air from the interior to the outside.
The iV-O󰀩ce features especially quiet operation. The patented sound insulation concept is based
on the combination of the sound insulation lining made of Inventin with the Xenion EFP reversible
fan. The sound insulation lining e󰀨ectively absorbs sound waves from outside and from the unit
itself (sound transmission and inherent sound). The arrangement and design of the fan blades
additionally reduces the sound transmission from outside.
Thanks to a high pressure build-up and the active speed control of the motor (integrated wind
pressure stabiliser) in the Xenion EFP reversible fan, the air ow in the system is kept almost
constant even in the event of weather-related pressure uctuations. Thus, the sensitivity of the
air ow to pressure uctuations corresponds to class S2 according to EN 13141-8 (max. 20 % air
ow deviation at ± 20 Pa).
In order to ensure the full functioning of the ventilation unit throughout the entire year, a temper-
ature sensor is integrated into the Xenion EFP reversible fan. This measures the temperature of
the air ow. If the temperature falls below +5 °C, the reversible fan is automatically switched to
extract air mode for 4 cycles. This allows the thermal accumulator to heat up again and prevents
cooling of the interior due to cold supply air. During this phase, the operating mode that has been
set on the controller is ine󰀨ective. Subsequently, the controller switches the ventilation unit back
to the originally selected mode.
As standard, a washable ISO Coarse 60 % class dust lter is integrated into the inner cover. This
lters coarse dust and allergenic particles (such as coarse ower pollen) from the air before they
can enter the interior. The dust lters can be used regardless of the season. Optional pollen and
activated carbon lters are available for special requirements.
A decentralised ventilation system is based on the free movement of air between individual pairs
of ventilation units. Therefore, internal doors must not have air-tight seals. Provide suitable air
transfer measures to create a room network: an air gap of about 10 mm below the door, unscrew
the hinges by 5 mm, use a ventilation grille or similar (cross ventilation).
70 s

11
SYSTEM OVERVIEW: IV-OFFICE VENTILATION UNIT
11
iV-O󰀩ce ventilation unit | Installation instructions
1.1 Control elements
The ventilation unit is operated via an inVENTer system controller.
Depending on the controller, di󰀨erent operating modes and functions can be set.
Designation sMove MZ-Home
Number of controllable
ventilation units
Max. 4 Max. 8 (excl. sensors)
Multi-zone control No Yes
(max. 4 zones with max. 2 units
[plus sensors] per zone)
Operating concept •Touch •Touch
•Weekly timer
Operating modes •Heat recovery
•Unidirectional ventilation
•Pause function
•OFF (standard only)
•Heat recovery
•Unidirectional ventilation
•Dehumidication
(integrated moisture /
temperature sensor)
•Pause function
•OFF
Fan speed innitely adjustable,
4 levels predened
4 power levels,
freely selectable
Unit communication Cable Cable
External interface 1 potential-free switching
contact per controller:
•Pressure switch (NC)
•Other sensors (NO)
1 potential-free switching
contact per Clust-Air module
(max. 4)
•Pressure switch (NC/NO)
•Other sensors (NO)
For detailed information, see the controller's installation and operating instructions.

12
PREPARING FOR INSTALLATION
12 iV-O󰀩ce ventilation unit | Installation instructions
3 Preparing for installation
1.1 Installation position
• The installation location can be derived from the position suggested by the ventilation planning.
The exact positioning of the individual units and control units must be checked on site and, if
necessary, adjusted. Consult the responsible planner about this!
For optimum function, it is recommended that the ventilation unit is installed at the appropriate
point in the upper wall area (e.g. 1.80 m from the upper edge of the nished oor [OKFFB]).
• Do not place the ventilation unit near radiators, indoor air thermostats, sensitive furniture or
above pictures.
• Do not install the unit in places where direct contact with water spray is possible.
Observe the specications of VDE 0100 when choosing the installation location.
Minimum distances of the wall opening for the ventilation unit:
• Minimum distances to components / building elements on the interior and exterior wall:
NOTICE: Malfunction due to incorrect positioning of the ventilation unit.
• Note insulation thickness and possibly shutters!
• Do not install near radiators!
• Observe minimum distance of 1.2 m to adjacent air openings!
Termination component Distance from centre of hole on the
exterior wall [mm] Internal wall [mm] frontal [mm]
Flex O󰀩ce weather
protection hood
450 (top)
250 (side, bottom) – –
Flair XL inner cover – 250 circumferential 300
• between two ventilation units (pair of units) operating in push-pull mode in a room
1,2 m
1,0 m
1,0 m
1,4 m
y
1,2 m – 0,75 y
1,2 m
1,0 m
1,0 m
1,4 m
y
1,2 m – 0,75 y
1,2 m
1,0 m
1,0 m
1,4 m
y
1,2 m – 0,75 y
B
A C
Horizontal or vertical on the same wall
Installation over corner
Installation with height o󰀨set

13
PREPARING FOR INSTALLATION
13
iV-O󰀩ce ventilation unit | Installation instructions
1.1 Position of the wall opening
For the positioning of the wall sleeve of other variants of your ventilation unit ,see the
installation instructions for yourspecic external termination.
Standard variant ventilation unit:
Position of wall opening Position of Simplex wall sleeve system
Figure 2: Dimensional drawing of the iV-O󰀩ce wall opening (interior view)
1 Wall opening (Fig. 2, left)
Simplex wall installation system (Fig. 2, right)
2 Contour of weather protection hood3)
3 Reveal
4 Door/window frame
5 Bottom edge of lintel4)
1) Minimum distance to adjacent components on the interior wall 3) Recommendation: Attach the hood at lintel height
2) Ensure a minimum distance to adjoining components on the exterior wall 4) Note insulation thickness and any roller shutters
3.1 Dimensions
Designation Depth/length
[mm] Width [mm] Height [mm]
Wall opening for wall sleeve Wall thickness1) Ø270
R-D250 wall sleeve 495 (745) Ø250
Flex O󰀩ce weather protection hood 23 – 88 279 313
Flair-XL V-280x280 inner cover 632) 280 280
1) with render, insulation, masonry and plaster 2) Open
Ø270
148
165
≥250
≥ 2501)
279
2
≥ 4502)
4
1
3
5
≥250
≥ 2501)
279
330
148165
4
5
1
330
≥ 4502)
43
2

14
PREPARING FOR INSTALLATION
14 iV-O󰀩ce ventilation unit | Installation instructions
1.1 Sectional drawing of the ventilation unit
For sectional drawings of other variants of your ventilation unit, see the installation instructions for
your specic external termination.
Sectional drawing of the iV-O󰀩ce ventilation unit, standard variant
Figure 3: Sectional drawing of the iV-O󰀩ce ventilation unit
B Interior plaster/ interior structure
C Masonry
D Insulation
E Render
1 Inner cover base plate
2 Flair XL adapter
3 Inner cover panel with SDE sound
insulation insert
4 R-D250 wall sleeve
5 Sound insulation lining made of Inventin
6 Flex O󰀩ce weather protection hood
7 Flex O󰀩ce ring insert (pre-installed)
8 Thermal accumulator
9 inVENTron R-D200:
Xenion EFP reversible fan embedded in
double guiding vane
88
265
Wandstärke ≥ 260 63
Ø250
280
1 – 2°
313
DA
B
C
1
7
4
63
8
2
5
9

15
PREPARING FOR INSTALLATION
15
iV-O󰀩ce ventilation unit | Installation instructions
3.2 Dimensional drawings of components
Flex O󰀩ce weather protection hood
Weather protection hood cover Weather protection hood base plate
Figure 4: Dimensional drawing of the Flex O󰀩ce weather protection hood
1 Weather protection hood base plate
2 Flex O󰀩ce insert (pre-assembled)
3 Exterior wall xing hole (4 x)
4 Protective grid
5 Weather protection hood cover
6 Drip rail
Flair XL inner cover
Figure 5: Dimensional drawing of the Flair XL V-280x280 inner cover incl. SDE
1 Inner cover panel
2 SDE sound insulation insert
3 Flair XL adapter
4 Spacer (4 x)
5 Interior wall xing borehole
6 Inner cover base plate
7 Pass-through for controller connecting
cable
21
148
4 x Ø4,8
221
Ø
191
7
252
313
A
A
A ─ A
23
30
88
279
313
63
233
215
□280
215
A
A
3
2
1
6
7
5
4
6
51
5
1
3
2
4

16
INSTALLATION AND ASSEMBLY
16 iV-O󰀩ce ventilation unit | Installation instructions
4 Installation and assembly
Read the section carefully before installation to avoid installation errors. The installation and
connection of the ventilation system must be carried out by qualied personnel.
1.1 Check the scope of supply
Check the delivery for completeness and transport damage upon receipt using the delivery note.
Report missing items immediately.
These assembly instructions describe the standard version of the product. Details of the variants'
scope of supply can be found in the separately available installation instructions for the respective
system component.
The Flex-O󰀩ce weather protection hood is available in di󰀨erent colours and materials (stainless
steel / aluminium [with increased salt resistance]) and must be ordered according to the desired
colour and properties.
Figure 6: iV-O󰀩ce ventilation unit standard components
1 External termination
1 a: Flex O󰀩ce WSH cover
1 b: Flex O󰀩ce WSH base plate
1 c: Exterior wall xing elements
1 d: Sealing tape
2 Wall sleeve R-D250
2 a: Styrofoam discs
2 b: Mounting wedge set
3 iV-O󰀩ce thermal accumulator insert
3 a: Insulated thermal accumulator
3 b: R-D200 guiding vane
3 c: Xenion EFP reversible fan
3 d: Slim guiding vane (16 mm)
3 e: BUS plug connection
3 f: Sound insulation lining (Inventin)
4 Flair XL inner cover
4 a: Interior wall xing material
4 b: ISO Coarse 60 % dust lter
4 c: Flair XL insert (pre-installed)
4x
4x
4x
4x
2
1a
1b
1c
1d
3a
3e
3
4
4a
4c
3b
1
3c
3d
4b
3f
2a
2b
WSH = Weather protection hood

17
INSTALLATION AND ASSEMBLY
17
iV-O󰀩ce ventilation unit | Installation instructions
1.1 Create wall opening
CAUTION
Falling masonry when creating the wall opening
can lead to physical injuries and /or damage to property!
• Install protection against falling masonry on building exterior.
• Remove objects from the immediate vicinity of the building's exterior.
In new buildings, we recommend using the optional Simplex D250 wall installation system.
Observe the minimum distances and the installation position of the ventilation unit.
Consult your planner before installation if you are at all uncertain!
Create the wall opening through core drilling
Power drill with core drilling attachment or milling drill Ø 270 mm
Requirements:
• The masonry must be dry and in a load-bearing
condition.
• No load-bearing elements in the position of the drill
hole.
NOTICE: ACCumulation of condensate
in the wall sleeve leads to damage to the
brickwork and exterior wall!
• Create the wall opening with a slope of
1° to 2° to the exterior wall.
►Drill a wall opening, Ø 270 mm with a slope of
1° to 2° to the exterior wall.
The wall opening for the ventilation unit has been
created.
Ø270
1 – 2°
!

18
INSTALLATION AND ASSEMBLY
18 iV-O󰀩ce ventilation unit | Installation instructions
1.1 Laying the cables to the wall opening of the ventilation unit
CAUTION
Exposed electrical components.
Injury caused by live components (16 V DC)!
• Before working on electrical installations, disconnect all a󰀨ected equipment from the power
supply.
• Do not lay and/or connect live cables.
• Lay the power cable and fan cable separately.
Installation and connection must only be performed by qualied and trained personnel.
Once the wall opening has been created, the cables necessary for operating the ventilation
system are laid to the wall opening for the ventilation unit. They connect the valve gate of the
ventilation unit with the control components and thus establish signal transmission and/or voltage
transmission between the controller and the Xenion EFP reversible fan.
NOTICE: Cable to the wall opening of the ventilation unit not
laid. No connection of the reversible fan possible!
Routing of the cables to the wall opening for the ventilation unit
must be done in this installation step. The routing of the connecting
cables between the sMove/ MZ-Home controllers and the
Xenion EFP reversible fan is not part of this documentation.
For more information, see the installation and operating instructions
for the corresponding controller.
45°
Cable to the wall opening of the ventilation unit
The following cables, depending on the control unit, are laid to the wall opening for the ventilation
unit:
Use Cable type Cable origin
sMove Operating voltage fan
and unit
communication
Stranded cable
6 – 16 V DC,
e. g.: LiYY 3x0.75 mm²
sMove operating unit
MZ-Home Clust-Air module CAM17
in the ventilation zone

19
INSTALLATION AND ASSEMBLY
19
iV-O󰀩ce ventilation unit | Installation instructions
One after the other:
Star-shaped:
Cable type LiYY, 3-wire, wire cross-section 0.75 mm2,
length see controller
Cable type LiYY, 3-wire,
wire cross-section 0.75 mm²,
length max. 33 m
Control unit:
sMove: Control unit
MZ-Home: Clust-Air module
Terminal
blocks
Ventilation units
Ventilation
units
Operated in pairs
Operated in
pairs
Principle sketches for cable laying
The corresponding connection diagrams and assembly steps for installing the controller are not
part of this documentation! They can be found in the installation and operating instructions for the
respective control unit.
sMove and MZ-Home controllers
Control unit:
sMove: Control unit
MZ-Home: Clust-Air module
Switching power
supply unit
Switching power
supply unit
6 – 16 V DC
230 V AC

20
INSTALLATION AND ASSEMBLY
20 iV-O󰀩ce ventilation unit | Installation instructions
1.1 Installing the wall sleeve
Measuring tape, angle grinder, spirit level, non-pressing 2K polyurethane foam, cutter,
mounting wedge set and styrofoam discs
Requirements:
• The wall opening Ø 270 mm is nished.
• The cables to the wall opening of the ventilation unit
has been laid.
►Determine the exact wall thickness X:
D = Exterior rendering, incl. other superstructures
if applicable.
C = Insulation, if applicable incl. air gap
B = Masonry, incl. relining if applicable
A = Interior plaster
X = A+B+C+D
►Cut the wall sleeve to the determined dimension X.
Be careful not to cut away the cut-out for
the fan connecting cable.
►Remove the styrofoam discs from the wall sleeve.
►Insert the wall sleeve into the wall opening so it is
ush with the interior wall.
Note the thickness of the plaster.
The recess for the connecting cables is
located on the interior wall side and near
the cables laid to the wall opening.
►Guide all connecting cables through the cut-out in
the wall sleeve.
X = ?
DA
BC
X
!
!