Internet controlled decentralized ventilation system for primary school

Recently, the municipal primary school of Differdange in the Grand Duchy of Luxembourg was extended with a new three-story building. Because in the original school building, the air has already been conditioned with Airmaster equipment, the client/principal considered it logical to install the system in the new part too.

Recently, the municipal primary school of Differdange in the Grand Duchy of Luxembourg was extended with a new three-story building.

Because in the original school building, the air has already been conditioned with Airmaster equipment, the client/principal considered it logical to install the system in the new part too. However, this time there is an interesting extra: thanks to the new Airlinq Online system, the units can be controlled and managed through the internet.

The new building connects the childcare facilities with the existing school and will increase the capacity of both. On the ground floor, there are three kindergarten classes, a relaxation space, and an indoor playground and a covered playground. The first floor houses a library, two refectories and a music room. On the second floor three classrooms, toilets and the staff rooms have been installed. Thanks to this extension, the school can welcome an additional 153 pupils.  

The school rooms are supplied with fresh air by eighteen Airmaster 800 units.

No discussion about ventilation

The new structure is designed with the educational concept “Welt-atelier” in mind, and its architecture and facilities follow the most progressive guidelines. “However, a beautiful school building with a practical layout is insufficient”, according to Nathalie Duquesne, Airmaster area manager. “Even more important is an excellent educational comfort, first and foremost by supplying sufficient clean air to the buildings. Some years ago, the client already chose the installation of our solution in the existing school building. Clearly, a decision he was very happy about because during the execution of the extension there was no discussion about the ventilation system. It was always going to be Airmaster again!”

Nineteen units

In effect, the school rooms are supplied with fresh air by eighteen Airmaster 800 units. These each offer an air volume of at most 725 m³/h with a noise level of less than 35 dBa. In the kitchen, which is smaller, and which has a lower occupancy rate, an AM300 unit was installed. As the new building does not have false ceilings, the client chose models which can be mounted against the ceiling. Nathalie Duquesne: “What makes the system so interesting is that it supplies ‘bespoke’ ventilation: the ventilation functions based on the number of persons present. Each unit is equipped with a sensor which continuously measures the CO2 content, and which controls the ventilation based on the values measured. Apart from that, a motion sensor only allows the Airmaster units to function when there are effectively people present in the rooms. Result? A considerable saving on energy consumption! And there are other advantages. Since no ducts are used, there is no heat loss, and a higher temperature of the discharge air supply can be attained. Mufflers are superfluous: the inside of the units is isolated and consists of high-quality components of top brands. And as there are no ducts, is also is a very maintenance-friendly solution: only the filters must be changed. A filter alarm based on loss of pressure automatically triggers itself if the filters are dirty and need replacement.” 

Control via a web portal

A unique feature is that it is one of the first projects where Airmaster’s new Airlinq online system is used for the control, regulation and management of the installation. Nathalie Duquesne: “This concerns a professional web portal which is located ‘in the Cloud’. Safety is a priority: all communication between the user, the ventilation installation and the servers are safely encoded. Airmaster paid a lot of attention to the composition and format of the users’ platform. This results in a user-friendly platform which is easy to manage. The client or manager can amend the settings in a very simple manner. Besides, the user is given specific rights to avoid changes to the settings by unauthorised people. And should any problems arise, Airmaster can remotely log in to all ventilation groups which are connected to the internet. In this way expensive interventions by engineers are avoided.”    

Ready for a breath of fresh air

At Airmaster, we are “decentral” through and through. We are unrivalled when it comes to creating the best indoor climate and optimal well-being because we take each room and its occupants into account – and because we constantly strive to improve on what we do.

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