inVENTer iV-Twin User manual

Status: 05/2011
Assembly instruction for the
inVENTer®ventilation system
iV twin
Manufacturer
Öko-Haustechnik inVENTer®GmbH
Ortsstraße 4a, D-07751 Löberschütz
Phone: [phone], Fax: [phone]
www.inventer.de, [e-mail]

Content
inVENTer® www.inventer.de 1
Content
1.Assembly Instruction "General Part"..................................................................................2
2.Assembly wall mounting sleeve (channel IV twin) .............................................................5
3.Assembly of exterior hood 09 ............................................................................................9
4.Finalization of the iV twin from the inside ........................................................................ 11
4.1Assembling the heat storage tank, ventilator and electrical connection........................... 11
4.2Assembly of the inner cover plate ...................................................................................13
5.Service and maintenance ................................................................................................15

1. Assembly Instruction "General Part"
inVENTer® www.inventer.de 2
1. Assembly Instruction "General Part"
Immediately after receipt please check the goods for transportation damages and
completeness (delivery note). Attributable complaints are no longer accepted 3 months
after delivery. Please store the goods in a dry and secure place until installation. Carefully
store the delivery note.
The ventilation system can only be commissioned after finishing all building
activities!
Identification points of the device
inVENTer twin, according to construction permit DIBt: Z-51.3-198
Manufacturer: Öko-Haustechnik inVENTer GmbH, Ortsstraße 4a, D-07751 Löberschütz
inVENTer twin
Year of manufacture: 2011
Overview:
1: Exterior hood
2: Exterior plate
3: Cap for inner cover plate
4: Dust filter
5: Lower inner cover plate
6: Reverse blower (2 x)
7: Wall mounting sleeve (double channel)
8: Heat storage Unit (2 x)
9: Sliding sleeve
inVENTer twin

1. Assembly Instruction "General Part"
inVENTer® www.inventer.de 3
inVENTer®Quality and Guarantee
The inVENTer ventilation system is manufactured according to the DIBt permit and strict
quality guidelines. Only high-quality and corrosion resistant materials such as plastic,
ceramic and stainless steel are used.
The inVENTer ventilator is designed for continuous operation. With only an average 2.5
W connection capacity per ventilator (including controller losses), about 40 times more
(heat) energy is saved than used.
We are subject to a statutory warranty period of 2 years. For an additional fee it is
possible to extend the warranty for another 3 years. Additionally, we provide a
supplemental guarantee of 8 years on the ceramic heat storage tank.
The manufacturer does not assume warranty if the installation was not completed
according to the assembly instruction.
Intended use
The inVENTer ventilation system is used to ventilate and aerate living spaces and similar
rooms (e.g., offices, medical offices, etc.) and is installed on exterior walls. When
planning, installing and operating, please follow the stipulations and valid building codes.
The iV twin was especially developed for individual room ventilation.
¾The inVENTer ventilator may not be used in rooms that are subject to high levels of dust
accumulation (e.g., in model construction) and may not be used in rooms with aggressive
or corrosive gases.
¾The inVENTer ventilator may not be operated without a dust filter and inner cover plate.
¾Please close the inVENTer dust-tight during construction work, and put the ventilation
system into operation only after concluding the construction work. Please inform the
respective contract builders and responsible construction manager.
¾The inVENTer ventilator is not suitable for building drying during the construction phase
and for ventilation while working with high levels of dust accumulation (e.g. sanding
plaster board).
The manufacturer is not liable for damages created by improper installation and non-
compliance with intended use.
Safety
Please always follow the safety, warning and processing information of the materials and
tools used, as well as the points specified in this instruction. Furthermore, when carrying
out the work and using materials and tools, the current applicable legislature must be
followed. Non-compliance can lead to damages to the device or bodily injuries.
The inVENTer ventilation system works with a low-voltage protector. Therefore, the
inVENTer ventilator may never be directly connected to the 230 V mains supply; rather it
must be connected via a controller. Damages caused by incorrect installation are not
included in the warranty obligation.
Attention for fireplaces!
Please follow the valid building codes and regulations (e.g., FeuVO [Firing Regulation])!
Before installing the ventilation system please talk to your chimney sweeper!

1. Assembly Instruction "General Part"
inVENTer® www.inventer.de 4
Attention! Please carefully read all of the instructions before starting the assembly. For
questions please contact your authorised dealer and construction manager. Assembly
faults can impair proper function, cause injuries and/or lead to loss of warranty.
Only trained qualified personnel may complete the assembly work. Only qualified
experts may complete the electrical installation.
Ventilation planning / General notes
Before starting the work, a project should be presented that indicates the number of
ventilators, the principal locations of the ventilators, the ventilation principle (cross
ventilation, single room ventilation, aeration), and the respective applicable controllers.
The following principle rules apply for the ventilation function:
Operate ventilators in pairs:The supply air should correspond to the exhaust quantity.
Every supply air conveying ventilator has a ventilator that transmits exhaust air at the
same time. The ventilators are allocated via the project, which must be checked and
possibly changed after controller start-up. During the delivery state the ventilators are set
to "exhaust". With correct installation, the iV twin ensures operation in pairs.
Synchronisation:When utilising several ventilators activated by several controllers,
synchronous collaboration must be observed. See notes in the controller instruction. All
controllers should be connected via the mains fuse to the main circuit of the house. The
iV twin works autosynchronous if assembled correctly.
Cross ventilation: The local ventilation system is based on free air movement between
the individual inVENTer ventilator pairs. Therefore, inside doors many not be closed
airtight. Overcurrent measures must be planned: Air space of about 10 mm below the
door, unscrewing the door hinges by 5mm, using a ventilation grille or similar. For the iV
twin these measures are not necessary.
Please find out from your planner if a "RAL installation" is necessary before
installation. Suitable materials are already provided on site if necessary.

2. Assembly of wall mounting sleeve (channel IV twin)
inVENTer® www.inventer.de 5
2. Assembly wall mounting sleeve (channel IV twin)
With the sliding sleeve, slight length adjustments may be made (extension up to 50 mm).
Technical data
Channel iV twin with sliding sleeve (Art. no. 1506-0004)
A: Locking area
B: Inside
C: Outside
Included in delivery
- Channel iV twin: 400 mm (Art. no. 1506-0004) / 550 mm (Art. no. 1506-0010) /
700 mm (Art. no. 1506-0011) / 900 mm (Art. no. 1506-0012)
- Sliding sleeve
- Assembly wedge
- Plaster cover (can be cut)
- Accessory kit (foam tape, dowel + screws + expansive bands for exterior hood, stop
strap)
Accessories (optional)
- Sound mat (Art.-no. 1004-0073)
- Wind protection (Art.-no. 1004-0071)
- Fabric tape for stopping the sliding sleeve (Art. no.1004-0051)
- Insulation anchor (Art.-no. 1004-0067)
- Flat cable 6 x 0.25 mm2(Art. no. 1004-0006 [33 m] / Art. no. 1004 - 0007 [lfm])
- Round cable 3 x 0.75 mm2(Art. no. 1004-0020 [33 m] / Art. no. 1004 - 0049 [lfm])

2. Assembly of wall mounting sleeve (channel IV twin)
inVENTer® www.inventer.de 6
Specify the installation location, wall opening and cable installation
Inside
¾Minimum distance of 100 mm
surrounding from the edge of the wall
mounting sleeve to the wall/ceiling
¾Later, there must be a space of at least
250 mm in front of the wall for
maintenance work (do not cover with
cupboards).
Outside
¾When specifying the installation location
consider the outside view
(e.g., exterior hood flush with lintel), see
drawing to the left.
¾Observe the minimum distance to
bordering components [F = edge of the
window reveal] ÆY ≥250 mm
¾When creating the opening, make sure
that no one on the outside can be injured
by falling masonry.
¾Create a wall opening of 270 x 150 mm²
in height and width. Options would be, for
example, creating two hollowed drill holes
of Ø 150 mm or one of Ø 295 mm (see
drawing to the left).
¾Please take note of slight gradient
towards
the outside (about 1° to 2°).
¾In the wooden pillar consturction, a duct
section shall be inserted with the same
interior dimensions as the framing wall.
¾Position the connecting line 6 x 0.25 mm²
(flat cable FC) or 3 x 0.75 mm² (round
cable RC) to the inVENTer ventilator in a
manner that the line reaches the left
centre (as seen from the inside).
¾Leave about 500 mm [P] room for the
necessary electrical connection. For
longer pipe lengths, leave more room
accordingly.
Attention!
¾When installing the wall mounting sleeve, deformations caused by outside pressure
should generally be prevented, so that the heat storage tank can easliy be installed and
removed! Otherwise the warranty does not apply.

2. Assembly of wall mounting sleeve (channel IV twin)
inVENTer® www.inventer.de 7
¾The heat storage tank or suitable material must therefore be in the wall mounting
sleeve during installation.
¾The screws in the fastening elements of the wall mounting sleeve are removed only
after finishing the wall mounting work (thread protection).
¾Please specify the total dimension of the
wall installation from the dimension wall
strength shell construction dimensions [D]
and the measurement for the wall
connection outside [E] (e.g., heat
insulation + plaster) and inside [X] (e.g.,
plaster + tiles).
¾After installation, the wall mounting
sleeve must be flush with the outside
plaster and end on the inside.
¾If necessary, shorten the pipes outside to
the meet the overall measurement,
including sliding sleeve, and de-grate
these afterwards.
¾The pipes are placed on top of each other
(the milling for the connecting line must
be close together) and blocked with the
already attached adhesive tape.
¾Block the sliding sleeve at the pipe with a
water tight adhesive tape (e.g., fabric
tape, optional).
¾Slide the wall mounting sleeve into the
prepared wall opening.
¾Now seal from the outside all seams
between the sliding sleeve and the pipes
using a permanent elastic sealant.
¾Guide the flat cable/round cable for
connecting the ventilator to the controller
laterally into the pipe.
¾Guide a second approx. 1 m long cable
(loop) from the top into the bottom pipe
(as shown on the left). It is used later for
connecting the two ventilators. For larger
pipe lengths, use longer cables
accordingly
¾Inside, the wall mounting sleeve is initially
protruding by the length [x].
¾The fastening elements (inside) must be
designed horizontally.
¾From the outside, the sliding sleeve
protrudes form the wall mounting sleeve
by the length [E].

2. Assembly of wall mounting sleeve (channel IV twin)
inVENTer® www.inventer.de 8
Inside
¾The distance between the wall mounting
sleeve and the wall breakthrough (fill area
[W]) must be about 10 mm.
¾Secure the wall mounting sleeve using
the enclosed assembly wedge inside and
out.
¾Pay attention to the slope of about 1° to
2° towards the outside.
¾Measure the distances to the wall inside
and outside, to make sure that the wall
mounting sleeve is flush to the plaster.
¾Stabilize the wall mounting sleeve by
sliding-in the heat storage tank or similar
suitable materials.
¾Fill the hollow spaces with non-pressing
installation foam or similar material.
¾Check again the correct position of the
wall mounting sleeve and correct it if
necessary before solidifying.
Inside
¾Inside, cut off the protruding assembly
wedges and fill material.
Outside
Outside
¾Outside, cut off the protruding assembly
wedges and fill material.
¾Now, from the inside, attach the stop
strap at the top pipe to all four sides. At
the bottom pipe, the stop strap is
attached on the left, right and top sides.
¾Thereafter, attach the plaster cover to the
wall mounting sleeve, inside and outside.
(Plaster cover must be adjusted).

3. Assembly of exterior hood 09
inVENTer® www.inventer.de 9
3. Assembly of exterior hood 09
The exterior hood 09 is a component of the inVENTer ventilation system. It consists of a
board and a stainless steel hood painted in "white" or brushed "plain".
Technical data
Exterior hood 09 iV twin plain (Art. no. 1508-0007) or in white (Art. no. 1508-0014).
Included in delivery
- Hood 09 (stainless steel) in "plain" or "white"
- Exterior plate
Attention! To avoid accumulation of algae around the exterior hood, the notes
regarding assembly must be strictly followed (attach all sealing tapes!). In vulnerable
areas it is recommended, before installing the exterior hood, to have a biocide preset /
water retardant pre-treatment of the plaster surface around the hood.
Please ask your planer!
The exterior hood can only be installed if the outside plaster is finished and fully
hardened.

3. Assembly of exterior hood 09
inVENTer® www.inventer.de 10
¾Remove the plaster cover.
¾The enclosed 5 cm wide foam tape,
protruding 1 cm on the outside, will be
attached to the bottom of the bottom pipe
of the wall mounting sleeve or the sliding
sleeve. The protrusion is pressed down
into the finished and dried outside wall
onto the plaster.
Preparing the outside plate
Prepared outside plate for fastening to the
wall mounting sleeve
¾The board is fastened either to the facade
using 4 dowels or directly to the sliding
sleeve.
¾Only break the openings on the board
that you need for the fastening. (The
customer side must seal possible other
openings of the board to the facade!)
¾Seal the outside plate to the facade using
an expansive band (suitable for
unevenness up to 3 mm). For larger
gaps, the respective expansive band
must be provided by the customer. The
interior framing must be bonded
according to the wall mounting sleeve, so
that the expansive band is tightly
attached on the sleeve on the facade
(see image to the left).
Attaching the outside plate ¾Fasten the board to the wall (or sliding
sleeve). Pay attention to, in case
Inserting the exterior hood you select the fastening above the
insulating material dowel, the coverage
evenness between outside plate and
sliding sleeve (see drawing). Mask
possible openings to the wall.
¾The exterior plate can be used as a dowel
measurement mould.
¾Thereafter, slide the exterior hood from
the top onto the exterior plate.
¾Close possible gaps between the exterior
hood and plaster on top and at the sides
using a permanent elastic sealant, which
is also suitable for the outside.

4. Finalization of the iV twin from the inside
inVENTer® www.inventer.de 11
4. Finalization of the iV twin from the inside
4.1Assembling the heat storage tank, ventilator and electrical connection
The heat storage tank and ventilator are components of the inVENTer ventilation system.
The heat storage tank consists of a ceramic block that is enclosed by a closed-pored
insulating material.
Attention! The heat storage tank may not be stored or stacked horizontally outside of the
wall mounting sleeve!
Technical data
Heat storage tank iV twin with ventilator
Included in delivery
- Heat storage unit [2] (consisting of ceramic and closed-pored insulating material
complete with drive (reverse ventilator [1]).
¾Remove the interior plaster cover.
¾Slide the heat storage tank carefully into
the wall mounting sleeve up to the stop
strap.
¾Now slide the ventilator into the wall
mounting sleeve until it fits closely to the
heat storage tank.
¾With help from the grip piece attached
centrally to the fan grill, you are able to
remove the ventilator for maintenance
purposes.
¾The green loop on the heat storage tank
must not impair the ventilation operation.
¾With help from the green loop the heat
storage tank may be removed for
maintenance purposes.

4. Finalization of the iV twin from the inside
inVENTer® www.inventer.de 12
Electrical connection
This description refers to utilizing the inVENTer round cable. Other cables (Braids!)
must be connected correspondingly.
Cable in-bound from controller plus loop
(starting direction "exhaust")
¾For connecting the braids please use wire
end sleeves with flange to avoid
unwanted short circuits.
¾Close the braids of the two cables (those
coming from the controller and the loop),
as shown on the left, to the 3-pole plug (it
is plugged into the socket on the
ventilation motor). Here, squeeze 2 braids
into one wire end sleeve (max. 1.5 mm²
per connection). Colour sequence: see
controller instruction / image to the left.
1. white
2. green
3. brown
4. yellow or green
5. red
6. blue
Plug twisted (starting direction "supply air")
¾By turning the 3-pole plug the starting
direction of the ventilator and rotational
direction are changed. It must be noted
here that operation in pairs must start
with the ventilator in exhaust mode
(image left top) and the other ventilator
must be in supply mode (image left).
¾If using the inVENTer flat cable, two
neighboring wires must be merged. In
another wire end sleeve with flange, 2 to
4 braids (those coming from controller
and the loop) are squeezed.
¾Attach the sockets connected to the plugs
with the enclosed clamp, as presented in
the image on the left.
¾After completing the maintenance work,
the correct positioning of the plug for the
supply and exhaust air operation must be
checked and, if necessary, corrected.

4. Finalization of the iV twin from the inside
inVENTer® www.inventer.de 13
4.2Assembly of the inner cover plate
The inner cover plate is a necessary component of the inVENTer ventilation system. It is
closeable and only suitable for indoor spaces. Therefore, it may not be used outdoors. A
dust filter is included in the delivery. A pollen filter is available upon request. Replacement
duct filters are also provided by your dealer. Operation of the ventilation system is only
permitted with inner cover plate and dust filter. Also see "Intended use" in the general
operating instructions. The inner cover plate is to be locked after the system is shut off.
Technical data
Inner cover plate "round" (Art.-No. 1505-0006)
optional: Inner cover plate "square" (Art.-No. 1505-0009)
Included in delivery
- Lower section of inner cover plate with Allen key (not shown in image)
- Dust filter round (Art.-No. 1004-0033) / square (Art. -No. 1004-0062)
- White cap for inner cover plate
- Accessory kit (with 4 "short" and "long" screws)
Accessories (optional)
- Pollen filter, round (Art.-No. 1004-0065) / square (Art. -No. 1004-0063)

4. Finalization of the iV twin from the inside
inVENTer® www.inventer.de 14
¾Check if the wall surface is smooth. "Rough" surfaces must be smoothed out.
¾Attach the lower section of the inner cover plate with four screws (two lengths included in
the accessory kit) to the wall mounting sleeve (evenly and to not over-tighten). The
"inVENTer" inscription should be at the bottom of the lower section of the inner cover
plate.
¾The lower section of the inner cover plate should be tightly attached to the wall surface
after assembly, in order to prevent draught between the inner cover plate and the wall
surface when the inner cover plate is closed. If necessary, a second gasket strip (1 cm
width) can be glued on, which is respectively higher. This gasket strip is already provided
on site.
¾The dust filter is attached in the centre on the stud bolt and is lightly pressed on the
lower section fixing tappet. Thereby, all fixing tappets should be collected.
¾Subsequently, the air flow seperator disc is inserted and fixed in the centre of a knurled
screw; thereby, make sure the separating strip is positioned horizontally on the back.
¾The cap is attached on top of the strip with the grooves and pressed into the strip below.
The cap is opened by turning it to the left and closed by turning it to the right.
¾During assembly of the square inner cover plate, the blue dot should be facing upwards.
The dust filter is pressed onto the fixing tappet. Thereby, all fixing tappets should be
collected.
¾The separating plate is slid horizontally into the centre, as shown below. In the open
position, the cap is positioned in such a way that the word "inVENTer" can be read.
¾In order to close the hood, this must be taken off and the separating plate removed. For
storage, the separating plate is clamped to the inside of the cap, then the cap is turned
180° and positioned flush to the lower section.

5. Service and maintenance
inVENTer® www.inventer.de 15
5. Service and maintenance
Attention! The heat storage tank is made of ceramic. It must not be thrown (risk of
breakage). Installation and removal should be carried out wearing gloves (risk of injury
due to sharp edges). All work may only be conducted with the system switched off (switch
off control unit and disconnect from power supply!).
General
¾We recommend that the inVENTer runs all year round. An average of 40x more heating
energy is saved with an input power of approx. 2.5 watts per ventilator (effective).
¾The inner cover plate must be open at all times in order for the inVENTer to fully function.
¾If the inVENTer is not in operation, then the inner cover plate should be closed.
¾The use of the inVENTer ventilator is only permitted with a dust/pollen filter.
¾inVENTer operation always takes place via the controller (see controller operation
instruction). In the case of a short-circuit, an electronic fuse switches off the controller
and therewith the ventilator. After the short circuit has been fixed, the controller must be
switched off and back on. (Attention: Controllers are only temporairly short-circuit proof).
¾The ventilators are protected electronically against blockage caused by foreign bodies.
After fixing the problem, they will start again independently.
Maintenance
The inVENTer®ventilation system is maintenance-free as far as possible. The following
activities are to be carried out regularly:
The dust filters are very durable and can be washed multiple times. We recommend
cleaning the dust filter if necessary (normally monthly). Remove the filter and clean it in
warm soapy water or in a dishwasher/washing machine.
The pollen filter should only be used during critical high pollen times, as it limits
ventilation. It cannot be cleaned and thus, must be replaced. The unclean pollen filter can
be disposed of with normal waste.
Filters can be ordered (by entering the article number) at your inVENTer dealer or at
www.inventer.de.
The heat storage unit should be checked every three months and, if necessary, cleaned
with a vacuum cleaner, high pressure air or in the dish washer. In addition, the system is
to be switched off and disconnected from the power source. After opening the inner cover
plate and unscrewing the lower section, disconnect the power supply, remove the
ventilator and the heat storage tank (pull the green strap) from the wall mounting sleeve.
Now the heat storage tank can be cleaned. If necessary, the wall mounting sleeve can be
cleaned from the inside with, e.g., a damp cloth.
Installation takes place in reverse order. Make sure that the ventilation screen is visible
after plugging the ventilator back in and the 3-pin plug is correctly inserted. Check the
starting direction of the ventilator.
Check the ventilator annually to make sure it is clean. The fan blades can be carefully
cleaned with a soft, damp cloth.

5. Service and maintenance
inVENTer® www.inventer.de 16
Fixing malfunctions
Should malfunctions arise, please check first whether the problem can be fixed by using
the following instructions. If the malfunction cannot be fixed, then please contact your
authorised dealer.
Malfunction Cause Repair
No electrical voltage Turn power off and back on via the mains fuse
in the junction box.
Installation failure Check all cables for correct connection and if
the plug is inserted correctly
Ventilator sticks Switch controller off! Remove object
Controller in
"Service function"
mode
The ventilator can be stopped for 60 mins with
the service function. Resetting the service
function takes place via the mains fuse in the
junction box.
Controller is not
correctly calibrated
Calibrate controller as described in the
instructions (only with remote variations)
Controller is
defective
Replace controller
Ventilator
is not
working
Ventilator motor is
defective
Check ventilator and replace if necessary
Controller in
"ventilation" mode
Check controller operation mode in which heat
recovery does not take place in operation type
"ventilation".
Cold air
supply
Installation failure Check that the 3-pin plug is correctly inserted
Inner cover plate
opened incorrectly
Inner cover plate completely open
Air filter very soiled Cleaning the filter
Pollen filter inserted
/ very soiled
Air flow is limited with the use of a pollen filter.
Pollen filter should only be used during the
pollen season, replace pollen filter if necessary.
Air flow is
limited
Heat storage tank
very soiled
Cleaning the heat storage tank
Fan blades very
soiled
Cleaning the fan blades
Heat storage tank
not moved outside
Slide the heat storage tank into the wall
mounting sleeve until it is against the stop strap.
Noise level
Additional noise
insulation required
Outside noise (street noise) can be reduced by
using a noise insulation mat.

Personal notes (e.g., responsible authorised dealer; invoice number / delivery note
number):

l-map-montage-iVtwin-110513-en
Öko-Haustechnik inVENTer GmbH
Ortsstraße 4a
D-07751 Löberschütz
Phone: [phone] – 2192 0
Fax: [phone] – 2192 13
[e-mail]
www.inventer.de
Subject to technical changes!
Copyright: Öko-Haustechnik inVENTer GmbH, copyies are only permitted permission