Climate- and Refrigeration
Technology, our specialisation

Enza Zaden: climate rooms for research lab

Nijssen realized 32 climate rooms for breeding company Enza Zaden in their new research facilities in Enkhuizen. For the new greenhouse complexes in this extensive expansion program we realized 22 climate rooms and 2 steam cells.

The controlled environment rooms are designed and specifically equipped for a wide range of applications: in-vitro rooms, rooms for tissue culture and vernalization, a physiology room, post-harvest rooms and a seed storage room with airlock. The cooling installation also includes a CO2 installation and various water installations, including for osmosis water and feed water.

Two temperature circuits

For efficient temperature control, Nijssen opted for several temperature ranges. The temperature is regulated per climate chamber by switching between these different circuits. The high temperature circuit connects to Enza's soil storage system via a separator exchanger. For the low temperature circuit, Nijssen assembled its own cooling installation from various components to provide an optimal match with the formulated requirements and wishes.

Nijssen realiseert klimaatkamer met hijsverlichting voor EnzaNijssen realiseeert klimaatkamers voor Enza ZadenNijssen machinekamer voor Enza Zaden

Lifting frames for lighting

To achieve a more even air distribution, the air coolers in various rooms are equipped with air socks. Various rooms have a height of 5 meters and are therefore equipped with tailor-made hoisting frames with the assimilation lighting.

User-friendly control system

The user-friendly Nijssen Control system provides control and visualization of all functions in the conditioning of the rooms. The system monitors all settings and displays these in clear and concise overviews and graphs. With the press of a button all test settings can be saved in a recipe.

Nijssen klimaatkamers met touchscreen voor EnzaNijssen geavanceerde en gebruiksvriendelijke regeling voor Enza

Previous projects for Enza Zaden

In 2016 Nijssen already realized 22 climate chambers and 2 steam cells for two greenhouse complexes of Enza Zaden. These stainless steel cells are used for the disinfection of materials. Nijssen is currently realizing several climate cells for a new germination lab for Enza Zaden.


Breeding company Enza Zaden develops new vegetable varieties that are grown, sold and consumed all over the world. The company invests more than 30% of the turnover in innovation and annually introduces 100 new vegetable varieties on the world market. Enza Zaden is one of the 10 largest vegetable breeding companies in the world.

Nijssen machinekamer en condensors voor Enza ZadenNijssen techniekruimte klimaatkamers Enza Zaden


Completion: end of 2017


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