Denmark's national history preserved with Munters dehumidification
Denmark's new State Archives in Copenhagen are equipped with the latest technology to ensure optimum safety and storage climate for irreplaceable documents.
The Danish State Archives consist of 2 large 15.5-meter-high buildings connected to DSB's (Danish National Railroad) headquarters with a 7m high building where the roof is designed as a green park to the delight of area residents, office employees and guests from surrounding hotels.
The two large buildings, built by bricks with runic letter decorations are designed with a very high level of security and safety protection. The halls are divided into four separate archives, all equipped with 12.5m high mobile shelf systems. The lower building holds specially classified material.
The State Archives will store 3.5 billion documents placed in 270,000 plastic trays in the shelf rack systems equal to a length of 370km. An advanced barcode controlled picking system ensures that the State Archives is able to locate and retrieve the requested documents to the audience instantaneously.
To safeguard the irreplaceable documents a very precise and reliable control of the indoor climate is necessary. By controlling the relative humidity in all 70,000m³ by Munters desiccant dehumidifiers, the archives comply fully to the guidelines from the Heritage Agency of Denmark and the new DS/ISO11799 standard for storage environments.
Seven Munters dehumidification systems are connected to the archive's ventilation system and ensure that the relative humidity in the archives throughout the year is kept within 30-50% RH. (Max. accepted variation over a day is 3%).
The system works with full recirculation and a fresh air intake of approx. 10% to keep anover pressure. The temperature in the archives is kept constant between 14-18°C.
The Danish State Archives is one of the many examples of where Munters desiccant systems are used to create the optimal climate without any compromise. Munters' long experience with over 300,000 installations worldwide speaks for itself.
The Danish State Archives was the first PPP project in Denmark(PublicPrivatePartnering), where state and private companies have jointly initiated the building and the state, after construction, has signed a contract with a private firm for the next 30 years of operation and maintenance, including Munters dehumidifying systems. 
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