Ammonia / CO2, Heat pumps
Frame unit or container assembly, 10kW or 10MW, cruise ship or oil platform. From the keywords Quality - Environment - Flexibility - Footprint, SLS has in 20 years a product line offering everything from the simplest to the most advanced solutions in the refrigeration and heat pump industry. Synthetic refrigerants occur in our manufacturing if the customer has this as a specific requirement, but NH3 and CO² are the refrigerants that account for the majority of our manufacturing and what we advocate in all modes.

Heat pumps

Frame assembly for assembly in engine rooms is the real core of our business and is our absolute excellence. The units are 100% tailored to the customer's specific requirements, ranging from an extreme footprint, high efficiency requirements, specific software requirements, or something as simple as low cost. Manufacturing industry, food industry, Geothermal heat pump plants are typical examples of applications that are constantly recurring in our production.

Heat pump for residential districts

Did you know that many residential areas, such as private associations, provide their own heat pump plant to reduce heating costs? Unused heat is sold to a district heating network.

Container units

Portable engine room that is easily moved and transported all over the world. If there is no space in the existing premises or if the existing chiller needs to be moved after some time, the choice will fall more often on a container chiller unit. The container is adapted to connecting pipes and cables to be optimized for the specific task. Very often the Cooler is placed on the container roof to minimize the unit's footprint. Easy and fast to transport worldwide as the format is a standard 40 'container. Manufacturing industry, food industry, geothermal heat pump plants, etc. are typical examples of applications that are increasingly choosing a container solution for space reasons or simply because it is cheaper than building a new engine room.


Frame unit or container assembly, 10kW or 10MW, cruise ship or oil platform. All types of heat pumps are also manufactured to the marine market and are also adapted to 100% according to the customer's requirements.

Refrigeration plants for Commercial coolers and freezers.

SLS helps with overall solutions for commercial cooling / heating. Our smart combi machine Milior supplies the coolers with cold and waste heat and the waste heat helps to heat the store in a smart heating solution.