Museums and archives

Museums and Archives are unique spaces within the Tertiary sector. Museums, as Establishments Open to the Public, must not only comply with EOP safety regulations, but also maintain strict temperature and humidity conditions for the conservation of works of art. Archives, for their part, require optimum conditions for the storage and preservation of sometimes precious documents.

There are two distinct approaches to processing these volumes:

The simplest approach is to keep the indoor climate constant, whatever the outside parameters, a technology that is inexpensive to install but fairly energy-intensive.

Another, more scalable solution adapts to changes in ambient conditions over time. The technology is more advanced, involving higher investment, but will result in lower energy consumption.

In fact, for certain categories of works, the problem is less about the level of temperature or humidity than about their changes over time. It is generally agreed not to exceed a variation in ambient temperature of 2°C per week and 1°C per 24 hours, and a maximum fluctuation in humidity of 5% per day within a variation range of between 45% and 55% RH.

ETT offers customised solutions for every context. 

In museums, the ULTI+ RE DESHU air-to-air heat pump is perfectly suited to the needs of these types of public buildings, as it can manage the regulatory fresh air rates required per visitor, while maintaining the required ambient climatic conditions.

Archives also require a minimum amount of fresh air to supply the various storage cells, as this is essential to prevent the growth of fungi and other harmful agents. As the volumes and requirements of these cells vary, it is usual to combine a custom-designed ETT heat pump with several variable flow boxes.

Generally speaking, ETT has the ability to design machines tailored to your requirements, whether for the production of treated air, or centralised water production (heat recovery chillers using R290 fluid, GWP of 3, compliant with F-GAS 2).

In short, our solutions enable :

• Precise control of indoor temperature and humidity,
• Managing the supply of hygienic fresh air as required by law for public buildings,
• The recommended supply of fresh air in the Archives.