Ventilate the basement properly with ventilation components from LUNOS

Basement rooms place high demands on sufficient ventilation. They are often damp, smell musty and offer the best conditions for mould growth. Especially in basement rooms with no or little adequate insulation, the walls and walls become damp due to constantly high humidity. With the right ventilation, you can ensure an optimal basement climate.


This is why proper basement ventilation is so important

Food is often stored in the basement because the cool air makes it keep longer. But optimal ventilation is also important when files, furniture or other valuables are stored. A good ventilation concept in basements is indispensable, not least to protect the building fabric from long-term damage.

The cold in the room causes humidity to condense and the walls to become wet. Mould eats its way into the brickwork. In the summer, heat flows into the house through open doors, bringing additional moisture into the basement rooms. The warm air settles on the cold walls and surfaces and forms a wet film that can no longer dry off. It is therefore all the more important to prevent the formation of mould by providing sufficient ventilation.


Special LUNOS ventilation controls for basement ventilation

Due to the mentioned criteria, the ventilation requirements in basement rooms are different from those in living rooms. For this reason, LUNOS has developed control elements for basements and cool rooms. These do without external sensors and detect all necessary parameters on the fan alone. Even under difficult climatic conditions, they are able to control the fans optimally.

LUNOS basement ventilation does without dew point control

With a dew point control, the relative humidity and temperature of the outdoor air and that of the indoor air are continuously measured via a sensor. From this data, a system automatically determines the two dew points inside and outside, compares them with each other and only ventilates when the dew point outside is below that of the indoor air.

This is why we do not use dew point control when ventilating cold rooms.

The LUNOS ventilation components for basement ventilation bypass this dew point control. The problem with this form of ventilation: it only takes effect when the temperature has already fallen below the dew point, which means that structural damage is pre-programmed. This is because damage occurs before the air temperature actually falls below the dew point. Mould already grows from 80% humidity - i.e. well below the dew point range. Even if it is not yet "wet", mould can develop. For this reason, dew point controls can neither provide long-term building protection (or building protection) nor sufficient living space ventilation.

This is the innovation in basement ventilation

Controls are integrated into the fans that offer enormous performance. They are more like small computers within the ventilation unit than a simple control for volume flow adjustment. The mini-computers permanently record and evaluate measurement data from the environment and from the fan. Even when the fan is not actively working, the system analyses the sensor data.

In the so-called "sniffing mode", the fan is activated briefly to obtain even finer data for evaluation. The air is not transported out of the room in this state, but continues to move for optimal data collection.


Evaluation of fan data during operation
If the fans are active, further data such as speeds, running conditions, power consumption and sensor data from the motor are recorded and evaluated. On the one hand, this data is included in the control behaviour of the fan, and on the other hand, it is kept available for experts to gain further insights. In this way, it is possible to see whether the fan has been used optimally and what possibilities there are for optimisation.

This is how detailed the evaluation of the data is for optimal basement ventilation:
Average values are continuously calculated from the recorded data, which in turn are used to create travel profiles. Further calculations can be used to gain knowledge about the effects that the running behaviour of the fans has on the indoor air quality. Based on this, the control parameters are adjusted so that neither too much nor too little ventilation takes place. In this way, the control system can recognise whether moisture is flowing into the living area (e.g. from outside) and whether ventilation makes sense at all or whether the problem is increased by the ventilation itself.


The advantages of LUNOS ventilation compared to conventional concepts for basement ventilation

A conventional humidity control system determines the point at which the absolute humidity load of the outside air is higher than that inside. In summer, this situation arises very often. With a classic dew point control, the relative humidity near the wall would continue to rise - triggered or amplified by the fan.

The LUNOS control system starts exactly at this point. It recognises the moment when exactly this situation occurs and also knows which conditions are currently prevailing in the building. In such a situation, the fan would be switched off or turned down and only ventilates again with more power when the conditions allow it (e.g. in summer at evening or night time). The engineers are continuously working on improving the controls of all ventilation units even further. The goal is optimal ventilation in every conceivable situation.

Another focus of product development for basement ventilation and all other ventilation systems is to make ventilation as user-independent as possible. In the future, manual intervention should be completely unnecessary. The control system alone should work unobtrusively in the background and ensure optimal ventilation.


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