Skip to main content

The indoor climate at Ellemark School has significantly improved

The indoor climate at Ellemark School has significantly improved

The indoor climate at Ellemark School has significantly improved

The indoor climate at Ellemark School has significantly improved
The reason for a bad indoor climate is, amongst other things, a too low exchange of fresh air, which can be seen in the CO2 level being too high. In fact, more than half of the schools in Denmark have exceeded the limit values for the CO2 level – a statistic that can lead to problems with the government.

A healthy indoor climate is a good investment, if you ask Ellemark School. An outdated ventilation system at the school proved to be so inadequate that it led to many complaints about the poor indoor climate. One of the reasons for this was insufficient fresh air, indicated by the high CO2 levels in the classrooms.

Ellemark School is a school from the 60’s that is built on one level where the roof has a one-sided slope in five wings of the building. The school had two older ventilation systems in the basement, but with little effect:

“Our old ventilation systems were outdated, and we received several complaints about the indoor climate in the classrooms. Of course, you have to act on that. So, when it was decided that we could invest in a new ventilation solution, we were naturally happy", says Søren Stage, caretaker at Ellemark School.

The reason for a bad indoor climate is, amongst other things, a too low exchange of fresh air, which can be seen in the CO2 level being too high. In fact, more than half of the schools in Denmark have exceeded the limit values for the CO2 level – a statistic that can lead to problems with the government. An unhealthy indoor climate can also lead to e.g. headaches, difficulty with concentrating and general discomfort. Ellemark School is luckily no longer a part of this statistic.

“We are happy about that. We know that a bad indoor climate can make students and teachers physically uncomfortable. Of course, this also means that the conditions for learning are significantly reduced. It is not optimal”, says Søren Stage.

Plug-and-play

Improved indoor climate

It can seem like a daunting task for an older school to install a new, large ventilation system with long ducts. Especially if, like Ellemark School, you only have the opportunity to carry them visibly under the ceiling or outside the building envelope.

In addition, the school must also have space for a large technical room, and that extra space can be difficult to find for a school that makes full use of its space.

Airmaster’s decentralized ventilation units are plug-and-play units. They are installed inside of the building envelope and directly into the rooms that need ventilation. This means that they run independently of each other in their respective rooms with intelligent demand control – without being connected through ducts.

The units at Ellemark School are mounted in the ceiling, and the school therefore does not have to find the square meters for the units.

There are 30 classrooms at Ellemark School, and all the rooms had to improve their indoor climate. Airmaster delivered 29 AM 1000 and 1 AM 500 to the school, leaving each room with a new ventilation unit:

“With so many rooms in use, it has been a huge advantage that the units are decentralized. This way, we could have them installed one by one", says Søren Stage.

Airmaster’s intelligent demand-controlled system only ventilates when needed, thus avoiding unnecessary energy consumption, which also has a great impact on the environment.

Based on an analysis made in collaboration with MOE, the total level of CO2 emission from a decentralized unit is reduced by approx. 50% - compared to a centralized ventilation solution. This is, amongst other things, due to lower energy consumption for fan operation and for production materials. Read more about the survey here.

Easy control of units and CO2 level

Easy control of units and CO2 level

In terms of management and control, the units at Ellemark School are connected through the software system, Airlinq® Online, which is an IoT platform from Airmaster. Airlinq® Online provides central control and an overview of all the schools’ ventilation units. Søren Stage is responsible for the decentralized ventilation units and regularly uses Airlinq® Online to check the operating status.

“It is a simple and clear system, which I typically check up on when I arrive on Monday morning. The central control means that I only have one place to maintain and operate all units. It is somewhat more practical rather than having to manually enter each unit in order to make adjustments”, says Søren Stage.

A bad indoor climate often manifests itself as too high CO2 levels and/or too high temperatures. With a built in CO2 sensor and temperature sensors in the units, it makes it easy for Søren to monitor CO2 levels and room temperatures.

With measurements of CO2 levels, which Søren keeps an eye on via Airlinq® Online, it can be documented that the air quality is kept at the desired level. It also means a big improvement in the indoor climate at Ellemark School. And it has not gone unnoticed:

“Both teachers and students have noticed that something has really happened to the indoor climate. There are no complaints anymore. It is very difficult not to be satisfied”, says Søren Stage.

Contact us if you want to know more about decentralized ventilation

Our competent sales team is ready to answer your questions and advise you on everything from dimensioning, configuration, installation, and planning - so you can find just the right unit for your needs.

Relatered information