VENTOXX RV Series User manual

OOO Ventoxx Ventoxx GmbH
VentoxxUkraine Scherisberg 6
89312 Günzburg
Installation and
Operating Instructions
for the Ventilation Systems
RV by Ventoxx

OOO Ventoxx Ventoxx GmbH
VentoxxUkraine Scherisberg 6
89312 Günzburg
Manual for installation and use of Ventoxx RV ventilation systems
with heat recovery and the associated Ventoxx Twist Control.
Ventoxx RV30:
Scope of Delivery:
1. Inner Cover
2. G3 Class Filter
3. Reversible Fan
4. Insulation
5. Heat Exchangers Made of Cordierite Ceramics
6. HIPS-plastic telescopic pipe with stacked rings to adjust to different wall
thickness
7. Outer Cover

OOO Ventoxx Ventoxx GmbH
VentoxxUkraine Scherisberg 6
89312 Günzburg
Ventoxx RV 30s:
Scope of Delivery:
1. Inner Cover
2. G3 Class Filter
3. Reversible Fan
4. Insulation
5. Heat Exchangers Made of
Cordierite Ceramics
6. HIPS-plastic telescopic pipe
with stacked rings to adjust to
different wall thickness
7. Warmer Ring
8. Compensation Box
9. Outer Cover
Ventoxx RV 25:
Scope of Delivery:
1. Inner Cover
2. G3 Class Filter
3. Reversible Fan
4. Insulation
5. Heat Exchangers Made of Cordierite Ceramics
6. HIPS-plastic telescopic pipe with stacked rings to adjust to different wall
thickness
7. Air Duct
8. Ventilation Grille for Window Opening

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Table of Contents
1. This is the Product You Purchased:........................................................................... 3
1.1. Features and Benefits........................................................................................... 3
1.2. Technical Data....................................................................................................... 4
1.3. Quality and Warranty ............................................................................................ 5
1.4. Disclaimer.............................................................................................................. 5
1.5. Safety Instructions................................................................................................ 6
2. Installation.................................................................................................................... 7
2.1. Installation Documentation .................................................................................. 7
2.2. Legal Installation Regulations.............................................................................. 7
2.3. Legal Installation Authorization ........................................................................... 7
2.4. Installation in Rooms with Open Fireplaces........................................................ 7
2.5. Installation Instructions for ventilation units Ventoxx RV 30,Ventoxx RV 30s,
Ventoxx RV 25.................................................................................................................. 8
2.5.1. Tools Needed for Installation ........................................................................ 8
2.5.2. Additional Accessories Needed for Installation........................................... 8
2.5.3. Placement of the Ventilation Unit.................................................................. 9
2.5.4. Allocation of the Fan.....................................................................................10
2.5.5. Installation in a New Building – Creating an Installation Opening ............10
2.5.6. Installation in an Old Building–Creating an Installation Opening..............11
2.5.7. Preparing for Installation..............................................................................12
2.5.8. Cabling...........................................................................................................12
2.5.9. Fitting of the Telescopic Pipe: Steps 1–5....................................................13
2.5.10. Installing the Piping into the Wall: Steps 6–10............................................15
2.5.11. Installation of the Outer Cover: Steps 11–13...............................................17
2.5.12. Installation of the Ventilator with Heat Exchanger Unit: Steps 14 and 15.19
2.5.13. Installation of the Inner Cover: Step 16 .......................................................20
3. Connecting Twist Control...........................................................................................20
3.1. General Information.............................................................................................20
3.1.1. Intended Use..................................................................................................20
3.1.2. Safety Instructions........................................................................................20
3.1.3. Scope of Delivery..........................................................................................20
3.2. Connection and Installation of the Control ........................................................21
3.2.1. Red Fan-Blue Fan..........................................................................................21
3.2.2. Connection Scheme......................................................................................22
3.2.3. Installation of the Control: Steps 1–7 ..........................................................24
3.3. Commissioning and Operating ...........................................................................25
3.3.1. Commissioning.............................................................................................25

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3.3.2. Operating.......................................................................................................25
3.3.3. Explanation for Indication ............................................................................26
3.3.4. Enabling/Disabling the Illumination for Operation Modes .........................27
3.3.5. Operation Modes of Twist Control...............................................................27
4. Maintenance and Repairs ...........................................................................................29
4.1. Maintenance of the Unit.......................................................................................29
4.1.1. Filter...............................................................................................................29
4.1.2. Fan .................................................................................................................29
4.1.3. Heat Exchanger.............................................................................................29
4.1.4. Control...........................................................................................................29
4.2. Troubleshooting...................................................................................................30

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1. This is the Product You Purchased:
… Thank you for purchasing Ventoxx GmbH product that means energy-saving ventilation of
your building! We are constantly working on improvement of our Ventoxx devices; therefore,
we welcome our customers to give their feedback on daily use experiences. Please contact us
with suggestions at: [e-mail] or visit our website at www.ventoxx.eu.
Ventilation units of RV range produced by Ventoxx Company have been developed to provide
your rooms with fresh air and remove exhaust air with minimal thermal heat losses.
The ventilation unit absorbs heat and some of the moisturefrom the used exhaust air and thus
enriches fresh incoming air which is supplied to the living rooms.
Whatever the season is you will get comfortable climate in your rooms, with clean and fresh
air. Ventoxxhas achieved these highest heat recovery rates and thushelps you to save heating
energy. In addition, the ventilation unit partially regulates the moisture balance of the air
throughout the year and helps preventing mold growth in living areas. For best results, RV
ventilation units operate in pairs.
1.1. Features and Benefits
High heat recovery and pleasant indoor climate in your bedrooms and living rooms
Low power consumption
Various possible application in new or renovated buildings
Easy installation and operating
Installation within the outer wall, and thereby no annoying superstructures inside the
room
Does not need installation of ventilation ducts, therefore is suitable for installation in
renovated buildings
Electrically safe due to low power consumption
Easy to clean, some components are partially washable
Can be controlled via Bluetooth or Smartphone (from 2017)

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1.2. Technical Data
1
Nominal Volume Flow: 70% of maximum volume flow
2
Maximum Volume Flow
3
gem. VO1254/2014 EU
Characteristic Data/Operation Modes
Number of Operation Modes
17
Number of Speed Levels in Reverse
5
Ventilation Volume, m³/h
15 -55 (Level 1-5)
Ventilation volume in “Maximum
Ventilation” operation mode, m³/h
up to 110 (2 fans)
Heat Recovery Rate, %
70 – up to 83%
Noise Level, dB(A)
17 – 45
Voltage, V
230 VAC or 12 VDC
Operating Voltage, VDC
7-15
Power Consumption,qvn
1
, W
4,4
Power Consumption at Maximum
Ventilation qvmax
2
, W
7,4
Type of Heat Exchanger
Ceramic Heat Accumulator
(Germany)
Diameter of the Mounting Hole, mm
not less than 235
Operating Temperature, °C
-20 up to +50
Size
Minimum length of telescopic pipe – 300mm
Diameter– 226mm
Inner cover: diameter – 240 mm
Outer cover: height – 290 mm
Width – 280 mm
Type of Positioning
Horizontal placement in the outer wall
Maintenance
Filter needs to be replaced when requires.
The installed ventilation unit with heat
accumulator and filter should be checked every
3 months and cleaned if necessary.
Protection Class:
Fan
Control
IP 33
IP 20
Filter
G3
Energy Efficiency Class
3
A

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1.3. Quality and Warranty
For production of Ventoxx ventilation systems we use materials of very high quality and
durability, which mostly come from the EU. For the complete range of our products we
provide a 24 month warranty.
The warranty period begins on the day of the invoice.
Warranty is not guaranteed if:
• the device is operated without a filter
• recommended cleaning of the filter and the heat exchanger is not performed regularly
• when the device was technically altered and/or supplemented with unauthorized by Ventoxx
components or connected differently from the installation instructions
• the device was used during site work
• the device was used for drying the rooms (e.g after plastering)
• the transformer isn’t connected properly or installed not according to the installation
instructions
If necessary, and after the warranty has expired, please contact our sales outlets. Our
specialists will check your unit and give recommendations regarding its maintenance.
1.4. Disclaimer
The contents of the present installation instructions are constantly updated and the latest
version is always available to be downloaded from the website www.ventoxx.eu.
These instructions are in compliance with the latest version of the tested Ventoxx device of RV
series. However, minor variations cannot be excluded so we cannot provide any guarantee
that it agrees completely.
After the completion of the installation work, these installation instructions are to be passed to
the respective user or owner. To download this document, please, go to Downloads on our
homepage www.ventoxx.eu.
The Ventoxx ventilation unit is designed for ventilation of living spaces. Improper use of the
appliance may result in damage of the device and/or cause personal injury. In this case, the
manufacturer assumes no liability.
The manufacturer is not liable for damages and losses that come from following reasons
concluded:
Non-compliance with safety rules and installation guide described in this manual or
required by law;
Lack of care for the device;
Use of materials, components and spare parts which are not authorized by the
manufacturer;
Installation onto drywall.

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1.5. Safety Instructions
Please read the manual carefully. Here you will find important information
for installation, connection, danger prevention and proper handling of
Ventoxx devices.
This exclamation mark identifies installation and assembly situations in which
there is a high risk of personal injury or property damage, and/or calls for
increased caution to avoid personal injury or property damage.
Here notes are displayed to identify situations, which can possibly cause
problems and damage during installation and/or subsequent operation.
In these instructions you can find this sign identifying situations in which there
is a risk of electrocution. We, Ventoxx Company, encourage such operations to
be carried out by a specialized company.

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2. Installation
2.1. Installation Documentation
2.2. Legal Installation Regulations
Please, ensure disposal of the device complies with the current building
regulations and lawful accident prevention rules in your country (get more
information with the relevant professional associations).
2.3. Legal Installation Authorization
Please, ensure strict compliance with the legal local requirements for installation
of ventilation and electrical systems in your country. Check your legal
permission for installation.
The ventilation system with heat recovery is a ‘SELV’-equipment (Safe Extra Low Voltage)
which operates only by DC power of 7-15V, however, the Twist Control is connected to 230V
AC according to legal installation authorization required in Germany.
2.4. Installation in Rooms with Open Fireplaces
In case of use of RV 30 equipment produced by Ventoxx Company in rooms
with open fireplaces or stoves, it is necessary to ensure installation complies
with the applicable rules and standards in respective country. Apart from
fireplaces with balanced flue air supply air may be needed for operation of all
other operating units with an open flame. When stoves or other built-in
components and Ventoxx devices of RV product line are used at the same time,
a prior consult from a competent regional chimneysweep is essential because
of the risk of serious personal injury and property damage.There is suffocation
threat!

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2.5. Installation Instructions for ventilation units Ventoxx RV 30,Ventoxx RV 30s,
Ventoxx RV 25
2.5.1. Tools Needed for Installation
For Installation you will need the following listed tools and protective equipment.
Tools:
Level
Utility knife
Core drilling unit with 235 -240 mm drill bits for retrofitting
Phase tester (electrical fitting)
Screwdriver cross medium size (cover installation)
Wrench Size 10 (mounting outer cover)
Wire stripper (for cable mounting)
Spatula (inserting the control installation box)
Hammer and chisel or drill with drilling crown (inserting the receiving box)
Please, use the following protective equipment for installation:
Wear work gloves
Wear protective goggles
Use hearing protection
Wear head protection
Wear safety shoes
2.5.2. Additional Accessories Needed for Installation
The following additional accessories are required for installation, which are not included in the
package:
PU installation foam (please, follow the current safety regulations of your country for
using PU installation foam)
Mounting plaster
Various cables(see section 2.5.8 Cabling on page 12 for details)

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2.5.3. Placement of the Ventilation Unit
Ventilation units of Ventoxx Company product linecan be used almost in any room with exterior
wall. Due to the pendulum fan principle, the devices must be operated in pairs. The respective
mounting area should be here determined by a licensed professional planner.
Ventoxx Company will be pleased to
provide a preliminary design (under
Disclaimer) upon customer’s
request. When placing in the room
complies with the relevant legal
regulations and norms, the following
planning principles should be taken
into account:
Mounting height: Ventoxx devices should be mounted in normal living rooms near
the ceiling if possible, as our experience shows that it simplifies embarrassing cable
feed and ensures a better flow of air in the room.
Distance between units should not be less than 2 m.
Distance from the door: to ensure optimum room air flow, locate the device in the
furthest possible distance from the door provided that the second unit is located in
another room and possibly an intermediate room is used as an overflow chamber.
Removal of the inner panel: make sure that the selected installation site allows
unproblematic removal of the inner cover. For this, the opening must be at least 15
cm from the wall and the ceiling.
Pairwise operation: Ventoxxventilation units should work in pairs in order to achieve
the most optimal air circulation. For proper operation of the ventilation system, free
air passage through the rooms from one device to the other must be enabled. For all
room doors either ventilation grille or a bypass (at least 5 mm) must be provided. The
room doors may not be closed airtight; otherwise the ventilation system will not work
properly as a flow between the devices cannot be guaranteed.
Mounting above the beds: we recommend refraining from installation of units
directly above the beds because a slight breeze can be felt while sleeping.

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2.5.4. Allocation of the Fan
Ventoxx RV units work on a pendulum fan principle. In “Ventilation with Heat Recovery”
operation mode two units always work together(one as an air supply and the other as an air
outlet). The running direction will change every 68 seconds. Therefore, the factory sets
Ventoxx RV units working in opposite direction in one delivery. For this purpose the units are
marked with blue and red circles on the fan.
When installing the fans please note that the associated fans always have
different colour markers (blue and red).
2.5.5. Installation in a New Building – Creating an Installation Opening
When constructing new buildings, we recommend providing the necessary openings in the
shell of the house. By making openings, e.g., in the brickwork, with the dimensions 232 mm x
232 mm, a subsequent core drilling can be avoided.
Depending on the company and tool inventory, core drilling can be more
economical, particularly in Germany.

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2.5.6. Installation in an Old Building–Creating an Installation Opening
To minimize additional filthy and unnecessary work during installation, we recommend core
drilling to create an opening for Ventoxx RV unit. It will also make the further steps easier.
Ensure the drill bit can provide an opening of 230-240 mm. The opening should also have a
slight slope to the outside (2 degrees).
When drilling a wall opening, make sure:
That no people can be injured and/or object can be damaged by the fall out of wall
fractions;
No wires or pipes are available in the drilled wall;
That the hole does not influence the bearing capacity of the wall;
That creation of an opening has no effect on the physics of the building, e.g.,
penetration of vapour control or rain protection path;
That all necessary protective equipment is applied.

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2.5.7. Preparing for Installation
The following steps should be taken before the professional installation:
Unpack the unit.
Check the completeness of the contents. Your delivery has the following
components:
1 x Ventilator with Heat Exchanger Installation Unit
1 x Piping Segment Consisting of 3 Elements Assembled
2 x Round-head Screws with Square Neck
2 x Screw Nuts
1 x Inner Cover
1 x Outer Cover
1 x Sealing Ring (Self-Adhesive )
Remove the installation unit (ventilator with heat exchanger) from the piping and
secure it against damage such as knocks or contamination.
The heat exchanger is made of ceramics and can be easily damaged by knocks
or falling!
2.5.8. Cabling
Cable Connecting
To connect the control in the provided location, the room must have 230 V cabling. In the new
building, in particular, at least one empty wiring conduit leading to the place of future control is
recommended to be provided before plastering.
Please, note that this service can only be provided by an authorized supplier
representative (e.g., electrician) in Germany.
Cabling Ventoxx RV ventilation units
Low-voltage cables must lead from the control to the relevant associatedfans. For this awiring
with a cable cross-section 3 x 0.75mm² is sufficient. As a power feed cable (connection
between electrical power network and transformer) a wiring with a cable cross-section not less
than 3 x 1.5mm² is sufficient. Please, note that there should be enough overhang at both ends
to connect the control and the fan. An overhang of 40 cm should be provided.
In an old building, laying low voltage cabling in corners and under wallpaper is
recommended to ensure minimum intervention to the existing inventory.

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2.5.9. Fitting of the Telescopic Pipe: Steps 1–5
When assembling and installing the telescopic pipe, deformations must be
avoided! The form of the ventilator with heat exchanger installation unit is
accurately adapted to the pipe!
It is necessary to leave the space between the wall and the pipe. The inner-side
vapour barrier must be connected to the unit, if available. The same applies to
an external rain protection path, if available. There is a threat of penetration of
condensate due to an improperly attached vapour barrier or penetration of
driving rain by improperly connected rain protection path!
The standard telescopic pipe can be built into the wall of maximum thickness of
310 mm. If your building has thicker walls, you need additional pipe elements for
piping system (please, specify the wall thickness when ordering, the required
additional elements are included in a separate packaging).
Step 1
Accurately measure the total outer wall thickness (including plaster layer). Add extra 10 mm.
Step 2
The piping is pre-assembled. You can supplement the piping inside, as appropriate, by the
necessary elements to the pipe length determined in Step 1:
Inner Outer

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Step 3
If necessary, correct the insertion depth of the pipe segments in order to obtain the necessary
pipe length depending on the wall thickness.
Step 4
Insert the carriage bolts into the provided openings of the future front side of the pipe. The
screw head must point to the room (the necessary screws are included).
Step 5
Then glue one self-adhesive sealing ring in the inside of the pipe, as shown below.

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2.5.10. Installing the Piping into the Wall: Steps 6–10
During installation of the piping system into the wall, note the following things:
The pipe must be pre-assembled as described in2.5.9, completely and tightly
The ventilator with heat exchanger installation unit is not used in the piping
The opening in the wall is free of dust and debris
Step 6
Slide the pre-assembled pipe into the opening. There should a little slope of the piping to the
outside (about 2%) to ensure the further condensation drainage.
Observe the mounting direction. The screws must face
the front side.
.
Ensure the placement of the outside carriage bolts (fastening the outer cover) is
horizontal. Vertical and horizontal mounting of the outer cover is dependent
thereon.
.
Inside out view from the pipe

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Step 7
Turn the pipe into the correct position. Fix the pipe so
that the sealing ring on the pipe top comes to rest. Insert
the enclosed wedges to secure the position of the tube.
Wedge the pipe on four sides.
Step 8
Check there is sufficient slope of piping to the outside (about 2%), and the position of the
screws on the front side is horizontal.
Step 9
Wear work gloves and protective goggles to protect your
eyes from contamination and damage with PU mounting
foam! Please follow safety instructions for installing the
product you are using.
Seal the pipe with PU mounting foam. It is necessary to
leave the space between the wall and the pipe to ensure
a stable position of the piping.
Please keep in mind connecting a vapour barrier and rain protection path to
avoid structural damage!
Further installation steps may be taken only after hardening of PU-foam. Please
follow the manufacturer’s instructions for hardening time for polyurethane foam.

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Step 10
Insert the unit control connection cable into the pipe. The cabling between the
control and the unit is provided. The actual connection of the control is described
hereinafter (see how to do this in chapter 3 of these instructions).
2.5.11. Installation of the Outer Cover: Steps 11–13
When installing the cover, please, ensure there is sufficient stability of your
footprint. Secure yourself against falling hazard. If necessary, please, check the
current statutory safety regulations.
Step 11
Attach the mounting panel of the outer cover to the outer wall using the screws and nuts
supplied.
Due to the outer wall flatness tolerances, installation of
the outer cover can be difficult. Therefore, we
recommend the mounting screws not to be over
tightened.
Step 12
Insert the outer cover to the mounting panel.