Maritim Hotel
Amsterdam
Sustainable refrigeration system for Amsterdam's largest new hotel building
KSI Kältetechnik is realising, for Union Investment Real Estate, the construction of a sustainable refrigeration system for the new MARITIM Hotel in Amsterdam – complete with natural refrigerants.
Individually planned refrigeration technology for the ⟦Maritim⟧: For the Maritim, the refrigeration technology was precisely tailored to the requirements of a vertical hotel building. The complete 3D planning formed the basis for precise coordination of all pipe routes, height zones and trades involved. This allowed the technology to be integrated into the entire construction process safely and in a structured manner.
Supply of natural refrigerants: In total, 30 cold stores and numerous other cooling points via chilled brine supplied. Cooling is provided via six propane chillers, which ensure an efficient and reliable refrigeration supply.
the natural refrigerants used here are Propane and CO₂. This solution stands for a efficient, future-proof cooling and is particularly suitable for complex requirements within modern hotel areas.
Technical features in operation: A key component of the system is 100 per cent pump redundancy. It secures the brine supply to all consumers and ensures stable cooling capacity available at all times.
The dynamic refrigeration generation contributes to the system's high efficiency. The Propane chiller for low-temperature refrigeration and CO₂ systems for frozen storage adapt their output to the respective load. This increases both the Energy efficiency as well as the Operational reliability.
Control and remote access: The integrated Siemens control system enables complete visualisation of the system. Secure remote access allows diagnostics and adjustments to be carried out quickly and precisely, even during ongoing operation. This significantly simplifies monitoring and improves responsiveness in everyday operation.
Safe integration into the building: The Plant room was safely implemented inside the building. In addition, a CO₂ system on the 34th floor the sky restaurant reliably with cooling. This achieved a technically sound and high-performance solution even at great heights.
Key technical data
Refrigerant: R290 (propane), R744 (CO₂)
Cooling capacity NK: 6 × 35 kW
Cooling capacity TK: 3 × 30 kW
Heat rejection capacity: 380 kW
Consumers: 110
Pipework: approx. 3,600 m
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