Leplan AG References

Triemli City Hospital, Zurich

The tower is currently being extensively refurbished. A new women’s clinic is also under construction. The site’s energy supply was renewed, completed 2017, including the installation of three cooling units.

Swiss Life Arena, Zurich-Altstetten

The ZSC has a new home. A two-part ammonia (NH3) cooling system has been installed for cooling and district cooling.

Alnatura Hertensteinstrasse, Lucerne

The fresh organic produce is chilled with the natural R744 (CO2) refrigerant. Waste heat is being used to produce domestic hot water and for legionella control.

ZHAW Winterthur

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Zimmer Biotech AG District Heat Network, Winterthur

Contracted by Stadtwerke Winterthur, RMB extended the cooling supply of the firm Zimmer Biotech AG. In addition, a cooling system with turbo compressors and the HFO R1234ze refrigerant was installed.

Ice Rink, Sion

Replacement of the 1980 ammonia plant. The existing energy concept with groundwater as source and sink was complemented with an additional intermediate circuit. Energy optimisation of the waste heat concept was also part of the project.

Migros and Denner, Volketswil

In both branches, the central commercial cooling system for the chilled and refrigerated sections uses the R744 (CO2) refrigerant. Waste heat is used to produce pumped hot water.

Aquifer District Heat Network, Winterthur

New building of the underground energy control centre connected with ground water and heating networks. The construction is set to take place in multiple stages over 25 years.

Dolder Ice Rink, Zurich

Applying specific safety measures, the cooling distribution was designed as a direct evaporation system (9,000 kg ammonia).

BBL Administrative Centre, Ittigen

The waste heat produced by the commercial cooling system was fully integrated into the recooling system. Furthermore, all the waste heat is reused for pump or domestic hot water.

Regional Care Centre, Baden

A booster unit with the cutting-edge R-744 (CO2) refrigerant was designed for the commercial cooling system that supplied the chilled and refrigerated sections. The waste heat of the commercial cooling systems is used for domestic hot water.

UBS ELIT Restaurant, Zurich

Cooling was realised with the R-744 (CO2) refrigerant, and the existing distribution network remains in use with some of the relevant components such as pumps and condensers replaced. The waste heat of the commercial cooling system is used for domestic hot water.

Rice Up!, Zurich Main Station

Realisation of a compact system for restricted spatial conditions that is nonetheless state-of-the-art in terms of technology and safety. The system was integrated into the recooling network of the main station.

Limmatplatz Migros, Zurich

Connection of cooling units with high evaporation temperatures to a central commercial cooling system that has been designed for the highest energy efficiency in this area of use.

Illuster Migros, Uster

Connection of cooling units with high evaporation temperatures to a central commercial cooling system that has been designed for the highest energy efficiency in this area of use.

Mall of Switzerland Migros, Ebikon

The cooling system was designed as a transcritical CO2 booster with parallel condenser and inverted heat exchanger for the heat pump function. The cooling units are dewatered via a vacuum system.

Migros, Sirnach

The commercial cooling system for the chilled and refrigerated sections uses the R744 (CO2) refrigerant. The waste heat is used for the warm water pump heating system.

St. Fiden Migros, St. Gallen

Cooling units with high evaporation temperatures were connected to the central commercial cooling system. To increase efficiency, the “plus” cooling level of the R-744 (CO2) plant was equipped with a parallel condenser.

Dübendorf Hochbord, QM Mandate

Heat production and domestic water treatment with multiple heat pumps. Geothermal probe fields are the energy source.

Frequency Converter Waste Heat Utilisation, SBB Opfikon

There are two large SBB frequency converters in Opfikon that each produce 2.5 MW in waste heat. From the heat extraction, a district network is connected to the nearby residential blocks that are being heated with the waste heat produced by the frequency converters.

Indoor Pool and Ice Rink, Zurich-Oerlikon

The district heat consumption of the indoor pool in Oerlikon was reduced by integrating a new heat pump into the existing hydraulic network. The waste heat generated in the production of the ice for the ice rink is used as an energy source.

Lake Water, Bregenz

Development of an overall energy concept: lake water for the site’s air conditioning and as an energy source for the heat pumps that heat the site.

Superblock, Winterthur

Overall planning for various cooling and free cooling solutions as well as development of a safety plan. The project includes ammonia cooling units and hybrid recoolers that can be used for free-cooling purposes on colder days.

Denner Distribution Centres, Lyss and Dietlikon

The existing ventilation distribution network was replaced with large recirculation coolers. The result: a reduction in primary energy consumption of more than 70 per cent. The renovation took place while the facility was in full operation.

Lonza Arena, Visp

New ice rink hall with transcritical CO2 system for ice rink cooling, air conditioning, dehumidifying, and heating with a heat pump system. Lonza AG’s Rhone river-water system and the local deep water act as both an energy source and re-cooling system.

Ice Rink, Wallisellen

Renovation of Winter World Wallisellen with feasibility study for roof and hall, and replacement of the existing technical facilities as well as new construction of both ice fields.

Tägi Ice Rink, Wettingen

A two-stage ammonia plant is cooling the two ice fields (one of which is covered) and acts as a hub for the heating energy supply at three different temperature levels across the centre. Energy compensation occurs through the centre’s own groundwater system.

Ice Rink, Sissach

Total renovation of the technical facilities after fifty years, along with climate conditioning of the ice rink.

Malley Sport Centre, Lausanne

The project included the construction of three ice rinks, an aquatic centre, a fencing centre, a swimming pool, and a table tennis centre.

Ice Rink, Aarau

The cooling system was completely replaced, the indoor ice rink and the curling field were newly fitted, and the outdoor rink was replaced with a new, covered ice rink.

Heuried Sport Centre, Zurich

Installation with two transcritical CO2 systems. In a single-stage transcritical process, energy from the ice fields is transmitted to the heating systems in the form of waste heat.

ZHAW, Winterthur

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Metzgerhalle Schaffhauserstrasse, Zurich

The Metzgerhalle project was shortlisted for the City of Zurich’s award for excellent buildings in the years 2016-2020. This commercial and residential building was completely renovated from 2016 to 2019. Waste heat is used to preheat the domestic hot water.

Lucerne Cantonal Hospital

The 6 ammonia cooling units produce 6 mW. Implementation of cooling and safety plan and design of free cooling, heating and air-con systems.

Rosengarten Brewery, Einsiedeln

Cooling with two transcritical CO2 reciprocating compressors, coolant network for beer production and storage.

Alnatura, Zurich Oerlikon

Compact solution that simultaneously chills the food on display and acts as the shop’s air-conditioning (heating/cooling).

Globus, Zurich

The commercial cooling system for the chilled and refrigerated sections uses the R744 (CO2) refrigerant, waste heat is used to produce domestic hot water.

Migros Neuwiesen, Winterthur

The commercial cooling system for the chilled and refrigerated sections uses the R744 refrigerant. Waste heat is used to produce domestic and pumped hot water.