Decentralised ventilation system: Positioning and installation Ventomaxx

Decentralized ventilation systems are an efficient and modern solution for ventilating rooms. The correct positioning of these systems plays a decisive role in their performance. In this article, we delve into the world of decentralized ventilation and highlight why positioning is a crucial factor. From planning to installation, we provide you with valuable tips and advice on how to optimally position and professionally install your decentralized ventilation system. Learn what preparations are necessary and how you can avoid common mistakes when positioning. Whether in new construction or renovation projects, correct positioning ensures effective and efficient air circulation. Join us as we dive into the world of decentralized ventilation systems and discover how you can optimize your indoor climate.

Decentralized ventilation: brief overview

Decentralized ventilation is a modern and efficient way to ensure a continuous supply of fresh air in buildings. In contrast to central ventilation systems, decentralized systems can be controlled individually and used in specific rooms, enabling demand-oriented ventilation.

Decentralized systems consist of individually installed ventilation units in exterior walls, which operate with or without heat recovery (HR) depending on requirements. They offer demand-oriented ventilation of individual rooms without central air distribution systems.

Typical systems:

Push-pull systems (pendulum operation)
Synchronous systems (supply air/exhaust air in parallel)
With/without humidity sensors, CO2 sensors

The positioning of decentralized ventilation units plays a decisive role in their effectiveness. Strategic placement in living and working spaces ensures optimal air circulation, allowing pollutants and moisture to be effectively removed. When installing decentralized ventilation systems, it is important to ensure that they are installed professionally. Both in new buildings and in renovation projects, there are many options for installing the units so that they work efficiently and are inconspicuously integrated into the room atmosphere.

Planning note: According to DIN 1946-6, ventilation planning is mandatory for new buildings and energy-efficient renovations as soon as an airtight building envelope is created.

Optimal positioning of decentralized ventilation units

When selecting the optimal location, several factors should be taken into account to ensure optimal air circulation and air quality in the room.

One of the important considerations when positioning is to place the unit near potential sources of moisture, such as bathrooms or kitchens, to help effectively reduce moisture and mold growth.

The orientation of the ventilation openings also plays an important role. Strategic placement can prevent drafts and optimize airflow. Care should be taken to ensure that the ventilation units are not placed in close proximity to curtains or furniture in order to ensure unobstructed air circulation.

Furthermore, sound insulation is an important consideration when positioning the units. To create a pleasant room atmosphere, the ventilation units should be placed in such a way that noise is minimized.

It is advisable to seek expert advice to ensure that the positioning meets the specific requirements of the room. Careful planning and positioning allow the advantages of decentralized ventilation systems to be exploited to the full.

Recommendations for device placement

External wall with free air flow
Installation height: Ideally 1.80 m to 2.20 m, outside the breathing zone
Avoid drafts: distance from beds, sofas, desks
Symmetry for push-pull devices: similar installation height and axis alignment
Ensure access for inspection in accordance with VDI 6022

Special requirements:

Sound insulation: devices with insulation, especially in bedrooms
Fire protection: suitable partitions when installing in fire walls
Condensate drainage: slight outward slope (at least 1–2%)
ETICS integration: use thermally decoupled wall sleeves

Decentralized ventilation Installation & assembly: What needs to be considered?

When installing and assembling a decentralized ventilation system, there are a few important aspects to consider in order to ensure optimal functionality and efficiency of the system.

Installation requirements:

Core drilling 160–180 mm
Power connection near the device (230 V or low voltage)
Space for inspection opening

Building physics aspects:

Avoid thermal bridges with ETICS
Observe moisture protection (DIN 4108-3)
Ventilation concept: Observe differential pressure conditions (supply air/exhaust air)

Variants:

Surface-mounted unit with cover (ideal for renovation)
Flush-mounted unit with wall integration (new construction)
Window reveal installation (special case)

It is important to carry out precise planning before installation to ensure that the ventilation system can work effectively. Selecting the right installation locations and correctly aligning the ventilation units are crucial for good air circulation and efficient air purification.

During the actual installation, care must be taken to ensure that all components are installed professionally. This includes, among other things, the correct fastening of the units, the connection of the air ducts, and the installation of the control units. Careful installation ensures that the ventilation system functions smoothly. Therefore, installation should ideally be carried out by trained specialists to ensure proper installation.

When assembling and installing a decentralized ventilation system, it is essential to follow the manufacturer’s instructions and technical guidelines to avoid potential errors. Professional installation and regular maintenance will ensure that your ventilation system functions optimally and guarantees good indoor air quality.

Installation in new buildings vs. renovation: differences in planning

When installing decentralized ventilation systems, there are some significant differences in planning between a new building and a renovation. In new buildings, it is possible to take the ventilation system into account as early as the design phase of the building. This allows the optimal positioning of the individual ventilation units to be planned from the outset. Integration into the architecture and consideration of openings for the ventilation pipes can thus be implemented ideally. In addition, the electrical installations can be prepared accordingly during the construction planning phase to ensure smooth installation.

In renovation projects, on the other hand, the options are often more limited. Here, existing conditions must be taken into account, which can make the positioning of ventilation systems more difficult. Often, solutions must be found that can be integrated into existing structures. Planning must be flexible and individually adapted to the conditions on site in order to ensure optimal air circulation.

When planning new buildings, thermal insulation and energy efficiency requirements are also important. The ventilation system should be positioned in such a way that optimal air exchange is guaranteed with minimal heat loss. In renovation projects, on the other hand, it may be necessary to take existing insulation and installations into account and incorporate them into the planning.

Another difference lies in the costs and time involved. In new buildings, the costs of installing the ventilation system can often be better integrated into the overall calculation of the construction project. In renovation projects, on the other hand, unforeseen interruptions and adjustments can lead to additional costs and delays.

Installation: Planning in new buildings

Early integration into planning (e.g., architect, building services engineer)
Power cables and control cables can be laid invisibly
Integration into ETICS possible via system solutions
Optimized air distribution according to DIN 1946-6 possible

Renovation / retrofitting

Structural restrictions due to room geometry and exterior walls
Power supply may be visible or wireless
Listed facade: solution via slot ventilation or alternative guides

Regardless of whether you are planning a ventilation system in a new building or as part of a renovation, careful and well-thought-out planning is crucial for optimal results and efficient air circulation in the premises.

Common positioning mistakes – and how to avoid them

The positioning of a decentralized ventilation system is crucial for its performance and efficiency. Common mistakes can lead to problems that can easily be avoided.

Too close to heat sources: A common mistake when positioning ventilation units is to place them in close proximity to heat sources such as radiators or electronic devices. This can lead to inaccurate measurements and insufficient air circulation. Make sure to keep a sufficient distance.

Incorrect installation height: The height at which the ventilation system is installed is also crucial. Too close to the floor can reduce efficiency, while units positioned too high can hinder optimal airflow. Follow the manufacturer’s recommended installation heights to avoid drafts or poor air distribution.

Insufficient air supply: Inadequate supply or exhaust air openings can severely impair the function of the ventilation system. Ensure that there is sufficient space for air exchange and that no obstacles block the air flow.

Faulty wiring: The electrical wiring of the decentralized ventilation system should be carried out professionally and in accordance with the manufacturer’s specifications. Incorrect installations can lead to malfunctions and impair the efficiency of the system.

Ignoring environmental conditions: Each room has specific requirements for air quality and air exchange. Do not ignore the specific environmental conditions in order to ensure effective ventilation.

Lack of maintenance: Regular maintenance and cleaning of the ventilation system is crucial for its long-term performance. Neglecting maintenance can lead to malfunctions and a shortened service life of the system.

Frequently asked questions about positioning and installation

1. Where should decentralized ventilation systems ideally be positioned?

The optimal positioning of decentralized ventilation systems is crucial for their efficiency. It is recommended to place the units in the main living areas, such as living rooms or bedrooms, to ensure even air distribution. With a view to subsequent maintenance and hygiene, other aspects should be considered when placing the units. Access to the inside of the unit (in accordance with VDI 6022) should be provided for cleaning purposes. Furthermore, the units should not be positioned behind furniture or in inaccessible corners and should allow for easy filter replacement.

2. Are there any special considerations regarding positioning in relation to room size?

Yes, room size plays a role in positioning. Larger rooms may require the installation of multiple ventilation units to ensure effective air circulation. Smaller rooms, on the other hand, may only need a single unit.

3. What factors influence the optimal installation height?

The installation height of the ventilation system depends on various factors, including the room conditions, air distribution, and the number of people in the room. In general, it is recommended to install the units at a height that allows for efficient air circulation.

4. Can decentralized ventilation systems be installed by the user?

The installation of decentralized ventilation systems usually requires specialist knowledge and technical skills. It is recommended that the installation be carried out by a qualified technician to ensure proper functioning and safety.

5. What precautions should be taken before installation?

Before installing the ventilation system, it is important to choose the optimal installation location, check the building structure, and ensure that all necessary components and materials are available. Careful planning is crucial for smooth installation.

6. How can you avoid positioning errors?

To avoid positioning errors, it is advisable to obtain detailed information in advance and seek expert advice if necessary. Be sure to follow the manufacturer’s instructions carefully and take into account possible obstacles such as furniture or curtains.

Decentralised ventilation system: Positioning and installation