Claudio Müller

Dormant potential

<ul>
<li>Generation of heat up to 105 &deg;C</li>
<li>Energy source for heat networks</li>
<li>Use of natural <a href="/en/professionals/application-area/kaeltemittel">refrigerants</a></li>
</ul>

Pathways to an energy-efficient and environmentally friendly data centre

About which upcoming project can we talk to you about?

Get in contact with us

Un potentiel encore sous-exploité

<ul>
<li>Production de chaleur possible jusqu&rsquo;&agrave; 105 &deg;C</li>
<li>Source d&rsquo;&eacute;nergie pour les groupements thermiques</li>
<li>Utilisation der <a href="/fr/partenaires/domaine-d-application/groupes-frigorifiques">r&eacute;frig&eacute;rants naturels</a></li>
</ul>

Vers des centres de calcul efficaces sur le plan énergétique et respectueux de l’environnement

De quel projet en cours pouvons-nous parler avec vous?

Contactez-nous

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New building

Their high safety standards make ammonia chillers a reliable and safe solution for cooling data centres. The example of a redundantly designed cooling system for a regional data centre operator shows that high performance and energy efficiency go hand in hand.

Safe and climate-friendly – Chillers with NH₃ for data centres

Silvretta Therme

Heat recovery as a key component

<ul>
<li>2 Optialtum OA I HT 2-66e water/water heat pumps</li>
<li>3 Optipro 230ed water/water heat pumps</li>
<li>4 Optipro 230ed brine/water heat pumps</li>
</ul>

The heat pumps on site

Über welches anstehende Projekt dürfen wir mit Ihnen fachsimpeln?

Treten Sie mit uns in Kontakt

L'importance de la récupération de chaleur

<ul>
<li>2 pompes &agrave; chaleur Optialtum OA I HT 2-66e eau/eau</li>
<li>3 pompes &agrave; chaleur Optipro 230ed eau/eau</li>
<li>4 pompes &agrave; chaleur Optipro 230ed eau/eau</li>
</ul>

Les pompes à chaleur CTA utilisées

Silvrettaseilbahn AG_Kuerzi221206-1196_hires.jpg

The Silvretta Thermal Baths in Ischgl set new standards, both in terms of the experience it offers and in terms of building technology. The construction and its operation should be as energy-efficient and sustainable as possible. CTA’s heat pumps also play an important role.

Energy-efficient leisure experience at the Silvretta Thermal Baths

Installation of CTA's reversible chillers and recirculating chillers

<ul>
<li>Four reversible chillers</li>
<li>Total capacity: 2.2 MW (heating) and 2.7 MW (cooling)</li>
<li>Reciprocating compressor</li>
<li>Refrigerant: R-290 (propane)</li>
<li>Custom-made CTAexklusiv&nbsp;</li>
</ul>

Marcel Müller

Experiences for future projects

About which upcoming project may we have a conversation ?

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Introduction des groupes frigorifiques réversibles et des refroidisseurs de CTA

<ul>
<li>4 groupes frigorifiques r&eacute;versibles&nbsp;</li>
<li>Puissance calorifique totale de 2,2 MW et puissance frigorifique de 2,7 MW&nbsp;</li>
<li>Compresseurs &agrave; piston&nbsp;</li>
<li>R&eacute;frig&eacute;rant R-290 (propane)&nbsp;</li>
<li>Fabrication sur mesure CTAexclusiv&nbsp;</li>
</ul>

Les pompes à chaleur utilisées 

Profiter des diverses expériences

De quel projet en attente pouvons-nous parler avec vous ?

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Modernisation

The site of today’s industrial park “The Valley” is located where the legendary Maggi stock cubes were once produced. From autumn 2023, the historic buildings will be sustainably heated and cooled using energy from the air. The key components are four custom-made, reversible chillers/industrial heat pumps. 

Sustainable energy supply for historic building 

Danijel Matic

Process-specific requirements for regulation

Want to know more?

Exigences spécifiques au processus vis-à-vis de la régulation

En savoir plus sur les groupes frigorifiques.

Vous souhaitez en savoir plus?

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Indoor CBD hemp facility, Nunningen

The professional indoor production of CBD hemp flowers requires the precise regulation of temperature and humidity. LMP GmbH in Nunningen therefore uses CTA’s cooling control system. This ensures an optimal climate, day and night, while cooling and dehumidifying the rooms simultaneously.

Complex cooling control for cannabis products

<ul>
<li>Villa Cassel: CTAexklusiv air/water source <a href="/en/private/heatpumps">heat pump</a> with a 89.5&thinsp;kW output and a coefficient of performance (COP) of 2.36 at A-5/W55</li>
<li>Chalet Cassel: CTAexklusiv air/water source heat pump with a 28.7&thinsp;kW output and a COP of 2.28 at A-5/W55</li>
<li>Haus Bellevue: Aeroheat Inverta All-in-One air/water source heat pump with an output of 2.7-7&thinsp;kW and a COP of 4.1 at A2/W35</li>
</ul>

The installed heat pumps from CTA

Villa Cassel conversion project

<ul class="text-left w60 dotlist">
<li>Villa Cassel: <a href="/fr/particuliers/chauffage">Pompe &agrave; chaleur</a> air/eau CTAexklusiv avec une puissance de 89.5&thinsp;kW, COP 2.36 &agrave; A-5/W55</li>
<li>Chalet Cassel: Pompe &agrave; chaleur air/eau CTAexklusiv avec une puissance de 28.7&thinsp;kW, COP 2.28 &agrave; A-5/W55</li>
<li>Haus Bellevue: Pompe &agrave; chaleur air/eau Aeroheat Inverta All-in-One avec une puissance de 2.7-7&thinsp;kW, COP 4.1 &agrave; A2/W35</li>
</ul>

Les pompes à chaleur utilisées

Umbauprojekt Villa Cassel

DSC_3214_Bauphase_01_2000x1331.jpg

Redevelopment

Can a building at more than 2,000 metres above sea level be heated in a CO₂-neutral way? The Pro Natura Aletsch Centre in Riederalp puts this to the test and proves that it can. Air/water source heat pumps from CTA play a key role in this process. The power comes from a self-powered photovoltaic system.

CO₂-neutral at 2,100 metres above sea level

<ul>
<li>Heat source: Mainly waste heat from Swiss salt mines</li>
<li>Basic expansion: 2007-2009</li>
<li>Heat output: 8.4 megawatts (MW)</li>
<li>Heat requirement per year: 18,400 megawatt hours (MWh)</li>
<li>Heat energy coverage from salt works per year: approx. 13,000 MWh</li>
<li>CO2 savings: 2,600 tonnes per year</li>
<li>Savings in heating oil: 1 million litres per year</li>
</ul>

Heating network Rheinfelden Rüchi

<ul>
<li>709 kW heating output</li>
<li>COP of 3.73</li>
<li>Refrigerant R-1234ze (HFO)</li>
<li>Customised CTAexclusive</li>
</ul>

The heat pump in use

No matter how demanding - we transform our customers' wishes and needs into concrete solutions. We plan, build and test customised chillers and heat pumps in M&uuml;nsingen. Our products are available with an output range between 6 and 5000 kW, installed indoors or outdoors, water or air-cooled and with refrigerants such as propane, HFO or ammonia.&nbsp;

CTAexclusive - customised solutions

Anyone who buys a CTA heat pump has opted for a high-quality and durable product. Our service technicians provide professional care and maintenance to ensure that the heat pump continues to deliver optimum performance, runs smoothly and operates for a long time with the lowest possible maintenance costs. That's why we offer customised maintenance contracts for all refrigerant-carrying systems we supply. Whether it's a scheduled maintenance contract, a flat-rate maintenance contract or our tried-and-tested CTAprotect all-round protection with a warranty extension of up to 15 years from commissioning.&nbsp;

In safe hands

<ul>
<li>Source de chaleur: chaleur r&eacute;siduelle en exc&egrave;s des Salines Suisses</li>
<li>Installation de base: 2007-2009</li>
<li>Puissance calorifique: 8,4 m&eacute;gawatts (MW)</li>
<li>Besoins annuels en chaleur: 18 400 m&eacute;gawattheures (MWh)</li>
<li>Couverture des besoins en &eacute;nergie thermique de la Saline par an: env. 13 000 MWh</li>
<li>&Eacute;conomie en CO2: 2 600 tonnes par an</li>
<li>&Eacute;conomie en fuel: 1 million de litres par an</li>
</ul>

Réseau de chauffage à distance Rheinfelden Rüchi

<ul>
<li>709 kW de puissance de chauffage</li>
<li>COP de 3.73</li>
<li>R&eacute;frig&eacute;rant R-1234ze (HFO)</li>
<li>Fabrication sur mesure CTAexclusif</li>
</ul>

La pompe à chaleur utilisée

Quelle que soit la complexit&eacute;, nous transformons les souhaits et les besoins de nos clients en solutions concr&egrave;tes. &Agrave; M&uuml;nsingen, nous planifions, construisons et testons pour vous des groupes frigorifiques et des pompes &agrave; chaleur sur mesure. Nous fabriquons nos produits dans une plage de puissance allant de 6 &agrave; 5000 kW, pour une installation en int&eacute;rieur ou en ext&eacute;rieur, avec un refroidisseur &agrave; eau ou &agrave; air, et avec des r&eacute;frig&eacute;rants comme le propane, HFO ou l&rsquo;ammoniac.

CTAexclusif - des solutions sur mesure

Acheter une pompe &agrave; chaleur CTA, c'est opter pour un produit de grande qualit&eacute; et d'une grande long&eacute;vit&eacute;. Pour que la pompe &agrave; chaleur continue &agrave; fournir des performances optimales, &agrave; fonctionner sans probl&egrave;me et pendant longtemps avec des frais d'entretien aussi bas que possible, nos techniciens de service assurent un entretien et une maintenance professionnels. C'est pourquoi nous proposons des contrats de maintenance personnalis&eacute;s pour toutes les installations frigorifiques que nous fournissons. Qu'il s'agisse d'un contrat de maintenance en r&eacute;gie, d'un contrat de maintenance forfaitaire ou de notre protection compl&egrave;te &eacute;prouv&eacute;e CTAprotect avec prolongation de la garantie jusqu'&agrave; 15 ans &agrave; compter de la mise en service.&nbsp;

Entre de bonnes mains

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Extension

With a CTAexklusiv industrial heat pump, the energy supplier AEW Energie AG uses the waste heat from salt production at the Riburg salt mine for the Rheinfelden Rüchi heating network. A major consumer of the heat is the nearby SwissShrimp AG shrimp farm.

Heat for sustainable shrimp farming

<ul>
<li>Puissance frigorifique 1,2 MW</li>
<li>R&eacute;frig&eacute;rant naturel R-290 (propane)</li>
<li>Refroidisseur de liquide refroidi &agrave; l&rsquo;air</li>
<li>Deux compresseurs &agrave; vis semi-herm&eacute;tiques</li>
<li>Deux circuits frigorifiques s&eacute;par&eacute;s</li>
<li>R&eacute;gulation de puissance en continu via un Inverter</li>
<li>Seulement 46 kg de r&eacute;frig&eacute;rant par circuit de refroidissement</li>
</ul>

Données techniques par groupe frigorifique

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1.2 MW

Natural refrigerants are on the rise. Whereas ammonia has to date been the main compound used in megawatt refrigeration systems, propane is now also making inroads into the higher-performance segment. This is underlined by the expansion of the energy centre at the Stuecki-Areal in Basel to include two propane refrigeration systems from CTA, each with a cooling capacity of 1.2 MW.

Propane chillers, each with a 1.2 MW cooling output

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Biozentrum Basel

Perfect cooling for innovative cutting-edge research. Three NH3 chillers (Varimatik) are installed in the Biozentrum Basel.

Perfect cooling for innovative cutting-edge research

<ul>
<li>530 kW (2 &times; 265 kW)</li>
<li>Up to 70&deg;C hot water supply</li>
</ul>

In brief

<ul class="text-left w60 dotlist">
<li>530 kW (2 &times; 265 kW)</li>
<li>temp&eacute;rature de d&eacute;part maximale de 70 &deg;C</li>
</ul>

En bref

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High-performance air/water

In 2018, Basel City energy provider IWB installed two custom-made, high-temperature air/water source heat pumps from CTA, with a total heating capacity of 530 kW, in the St Jakob heating network. These replaced a natural gas-powered combined heat and power unit (CHP) and contributed to the further reduction of CO2 emissions from the heat supply in Basel.

530kW air source heating capacity for Basel

<ul class="text-left w60 dotlist">
<li>Two CTAexklusiv large <a href="/en/private/heatpumps">heat pumps</a> with a 1,300 kW total output</li>
<li>HFO refrigerant</li>
<li>Coefficient of performance (COP) of 3.45</li>
<li>Groundwater volume of 6,000 l/min</li>
<li>Operating temperatures
<ul class="text-left w60 dotlist">
<li>Groundwater 11/7&deg;C</li>
<li>Hot water 50/63&deg;C (max. hot water supply: +75&deg;C)</li>
</ul>
</li>
</ul>

The customised CTA heat pumps

<ul>
<li>Construction, funding, operation: Energie Service Biel (ESB) in collaboration with AEK Energie AG</li>
<li>Energy generation system output: 2,400 kW</li>
<li>renewable percentage: approx. 80%</li>
<li>Groundwater volume: 6,000 l/min</li>
<li>Output from CTA-<a href="/en/private/heatpumps">heat pumps</a>: 2x 650 kW</li>
<li>Output from natural gas boiler: 1,100 kW</li>
<li>Long-distance pipeline: 1.6 km</li>
<li>Investment costs: 7 million Swiss francs</li>
<li>Supply perimeter: 10.5 hectares</li>
</ul>

Facts and figures from the Champagne heating network

<ul class="text-left w60 dotlist">
<li>deux <a href="/fr/particuliers/chauffage">pompes &agrave; chaleur</a> industrielles CTAexklusiv avec une puissance totale de 1300 kW</li>
<li>fluide frigorig&egrave;ne HFO</li>
<li>Coefficient de performance (COP): 3.45</li>
<li>temp&eacute;ratures d&rsquo;exploitation:
<ul class="text-left w60 dotlist">
<li>eaux souterraines: 11/7 &deg;C</li>
<li>eau chaude: 50/63 &deg;C (temp&eacute;rature de d&eacute;part maximale d&rsquo;eau chaude: +75 &deg;C)</li>
</ul>
</li>
</ul>

<ul>
<li>construction, financement, exploitation: Energie Service Biel/Bienne (ESB) en coop&eacute;ration avec AEK Energie AG</li>
<li>puissance de l&rsquo;installation de production d&rsquo;&eacute;nergie: 2400 kW</li>
<li>part d&rsquo;&eacute;nergie renouvelable: env. 80%</li>
<li>quantit&eacute; d&rsquo;eaux souterraines: 6000 l/min</li>
<li>puissance des pompes &agrave; chaleur CTA: 2 &times; 650 kW</li>
<li>puissance chaudi&egrave;re au gaz naturel: 1100 kW</li>
<li>conduite de transport: 1,6 km</li>
<li>co&ucirc;ts d&rsquo;investissement: CHF 7 millions</li>
<li>p&eacute;rim&egrave;tre de desserte: 10,5 ha</li>
</ul>

Faits et chiffres groupement thermique Champagne

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District heating network

Four-fifths of the energy for heating and hot water in the Champagne district of Biel comes from renewable sources. What makes this possible are two high-performance heat pumps from CTA, which feed the district heating network with heat from the groundwater.

Heat from groundwater heats the Champagne district of Biel

<ul>
<li>28/60 kW output</li>
<li>Brought in in separate modules</li>
</ul>

<ul class="text-left w60 dotlist">
<li>28/60 kW puissance</li>
<li>insertion divis&eacute;e en modules</li>
</ul>

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Jungfraujoch

Every day, up to 5,000 people visit the ice palace on the Jungfraujoch. The heat input, which “heats up” this tourist attraction of pure ice, is correspondingly high. Two new, customised chillers from CTA provide essential cooling for the ice cave and have significantly reduced the energy input required.

CTA provides biting cold on the Jungfraujoch

<ul>
<li>Renovation of building technology in the listed building</li>
<li>Eastern Federal Parliament building: cooling for the IT and data centre, as well as air conditioning with two separate, mutually independent cold water networks</li>
<li>Northern Federal Parliament building: a chiller using the hydrofluoroolefin (HFO) refrigerant</li>
</ul>

<ul>
<li>renouvellement de la technique de b&acirc;timents class&eacute;s monuments historiques</li>
<li>Palais f&eacute;d&eacute;ral Est: groupes frigorifiques pour refroidissement et climatisation</li>
<li>Palais f&eacute;d&eacute;ral Nord: groupe frigorifique avec HFO</li>
</ul>

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Heritage conservation

In the Federal Parliament building in Bern, custom CTA chillers also ensure pleasant room temperatures on hot days. The modern cooling solutions, which were implemented as part of comprehensive redevelopment works, integrate perfectly into the historic building and prove their worth through their operational efficiency and low energy consumption.

CTA ensures cool heads in the Northern Federal Parliament building

Biopark Rosental The Chemistry Department of the Faculty of Science at the University of Basel offers modern laboratory space for research and education. An important laboratory site is the Biopark Rosental near the Basel Badischer Bahnhof railway station. Here, the canton of Basel-Stadt took over a large portion of the former Syngenta site in 2016. The site accommodates numerous chemistry and life sciences companies.
Design/Installation Tebit Haustechnik AG/H&auml;lg Group (Klima AG Basel)

About the site

Bioparc Rosental Le d&eacute;partement de chimie de la facult&eacute; des sciences de l&rsquo;universit&eacute; de B&acirc;le propose des places de laboratoire modernes pour la recherche et l&rsquo;enseignement. Le Bioparc Rosental, pr&egrave;s de la gare badoise, est un site important pour les laboratoires. C&rsquo;est l&agrave; que le canton de B&acirc;le-Ville a repris en 2016 une grande partie de l&rsquo;ancien site de Syngenta. Le site accueille de nombreuses entreprises de chimie et de sciences de la vie.
Planification/installation Tebit Haustechnik AG/H&auml;lg Group (Klima AG Basel)

Sur l’objet

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Biopark Basel

With two cooling networks—one of which uses two ammonia chillers—CTA takes care of the air conditioning needs of one of the University of Basel’s laboratory buildings. Thanks to CTA’s remote access, the system is continually adjusted to function optimally—safe, efficient, and economical.

Laboratory cooling

<ul>
<li>1.6 MW output</li>
<li>Four output-regulated worm compressors with eight output levels servicing two cooling circuits</li>
<li>18 tonnes in weight</li>
<li>HFO refrigerant</li>
<li>Water and buildings heated using waste heat from the cooling system</li>
<li>Specific dimensional requirements for installation</li>
</ul>

The customised CTA chiller

<ul class="text-left w60 dotlist">
<li>puissance de 1,6 MW</li>
<li>4 compresseurs &agrave; vis permettant le r&eacute;glage de 8 &eacute;tages de puissance au total</li>
<li>poids: 18 tonnes</li>
<li>fluide frigorig&egrave;ne: HFO</li>
<li>exigences particuli&egrave;res aux dimensions pour l&rsquo;insertion</li>
</ul>

en bref

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University Hospital

Hospitals must be able to rely on the safe cooling of equipment and rooms. The University Hospital of Bern, for example, relies on a customised CTA chiller for their expanded cooling system. This operates using the environmentally friendly hydrofluoroolefin (HFO) refrigerant and produces reliable cooling for a number of hospital buildings, with an output of around 1.6 MW.

Expanding cold generation at the University Hospital of Bern

<ul>
<li>Heating capacity: 263.6 kW, cooling capacity: 180.0 kW</li>
<li>Electrical power input: 88.0 kW</li>
<li>Coefficient of performance (COP) value: 3.0</li>
<li>Hot water inlet: +50&deg;C, outlet: +65&deg;C</li>
</ul>

<ul class="text-left w60 dotlist">
<li>puissance de chauffage: 263,6 kW, puissance frigorifique: 180,0 kW</li>
<li>puissance &eacute;lectrique absorb&eacute;e: 88,0 kW</li>
<li>Coefficient de performance: 3,0</li>
<li>entr&eacute;e de l&rsquo;eau chaude: +50&deg; C, sortie de l&rsquo;eau chaude: +65&deg;</li>
</ul>

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Knie’s Children’s Zoo

The elephant house and restaurant of the Knie’s Children’s Zoo in Rapperswil are heated using the high-temperature heat pump CTAexklusiv. Water from Lake Zurich is used as a heat source.

Knie’s Children’s Zoo with new cooling technology for high temperatures

<ul>
<li>Temperature range of 5 to 70 degrees Celsius</li>
<li>Precise control of the complex system for supplying specific temperatures</li>
<li>A smart combination of cooling and heat generation</li>
<li>Energy-efficient operation</li>
</ul>

<ul class="text-left w60 dotlist">
<li>construction modulaire possible</li>
<li>construction modulaire possible 220 kW chacun (total de 1760 kW)</li>
<li>fluide frigorig&egrave;ne HFO R-1234ze</li>
<li>6 points de fonctionnement diff&eacute;rents &ndash; EER entre 4.12 et 2.85</li>
</ul>

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Precision control

The chocolate manufacturer Maestrani is investing in the future and modernising its production. Customised CTAexklusiv chillers contribute to making even higher-quality chocolate. Using these chillers, a temperature range of 5 to 70 degrees Celsius can be produced—precisely and in an energy-efficient manner.

Maestrani in Flawil using modernised cooling technology

<ul>
<li>Redevelopment and optimisation</li>
<li>Savings of up to 1 GWh of electricity</li>
<li>990 kW cooling capacity</li>
<li>Operating temperature: 12&deg;C/7&deg;C &ndash; 31&deg;C/37&deg;C</li>
<li>European Seasonal Energy Efficiency Ratio (ESEER) 9.32/Energy Efficiency Ratio (EER) 4.91</li>
<li>Hydrofluroolefin (HFO) refrigerant R-1234ze</li>
</ul>

<ul>
<li>r&eacute;novation et optimisation</li>
<li>economies d&rsquo;&eacute;lectricit&eacute; env. 1 GWh</li>
<li>puissance frigorifique 990 kW</li>
<li>ESEER 9.32 / EER 4.91</li>
<li>temp&eacute;ratures de service: 12&thinsp;&deg;C/7&thinsp;&deg;C &ndash; 31&thinsp;&deg;C/37&thinsp;&deg;C</li>
<li>fluide frigorig&egrave;ne HFO R-1234ze</li>
</ul>

H5A9865_2000x1491.jpg

TECS HFO

The company’s objectives to reduce electricity consumption were already achieved in the first year of operation.

Merck Serono AG

<ul>
<li>New build</li>
<li>1,022 kW cooling capacity</li>
<li>Turbocor TG310 compressor</li>
<li>European Seasonal Energy Efficiency Ratio (ESEER) 9.32/Energy Efficiency Ratio (EER) 4.58</li>
<li>Operating temperature: 18&deg;C/12&deg;C &ndash; 38&deg;C/44&deg;C</li>
<li>At 50% partial load, EER value of more than 12</li>
<li>HFO refrigerant R-1234ze</li>
</ul>

<ul>
<li>construction neuve</li>
<li>puissance frigorifique 1022 kW</li>
<li>compresseurs Turbocor TG310</li>
<li>ESEER 9.32 / EER 4.58</li>
<li>temp&eacute;ratures de service: 18&thinsp;&deg;C/12&thinsp;&deg;C &ndash; 38&thinsp;&deg;C/44&thinsp;&deg;C</li>
<li>valeur EER d&eacute;passant 12 en charge partielle de 50%</li>
<li>fluide frigorig&egrave;ne HFO R-1234ze</li>
</ul>

lindbergh-allee_pressebild_2000x1200.jpg

Hydrofluroolefin (HFO) chiller

The Lindbergh-Allee project in Opfikon, Zurich, with 14,363 m2 of commercial space and 142 apartments. A TECS2-W HFO 1053 with 1,022 kW cooling capacity is used.

Lindbergh-Allee in Opfikon

<ul>
<li>1,000 kW cooling capacity (2 chillers)</li>
<li>Turbocor TG310 compressor</li>
<li>European Seasonal Energy Efficiency Ratio (ESEER) 9.0/9.40/Energy Efficiency Ratio (EER) 5.18/5.13</li>
<li>Operating temperature: 14&deg;C/8&deg;C &ndash; 30&deg;C/35&deg;C</li>
<li>HFO refrigerant R-1234ze</li>
</ul>

<ul>
<li>puissance frigorifique 1000 kW (2 groupes frigorifiques)</li>
<li>compresseurs Turbocor TG310</li>
<li>ESEER 9.0/9.40 / EER 5.18/5.13</li>
<li>temp&eacute;ratures de service: 14&thinsp;&deg;C/8&thinsp;&deg;C &ndash; 30&thinsp;&deg;C/35&thinsp;&deg;C</li>
<li>fluide frigorig&egrave;ne HFO R-1234ze</li>
</ul>

H5A0220_2000x1333.jpg

HFO chiller

Swiss Chemical Risk Reduction Ordinance (ORRChem)-compliant refurbishment of the air conditioning. Two standard chillers used: one TECS2-W hydrofluroolefin (HFO) 712 and a TECS2-W HFO 351.

Métropole shopping centre in Lausanne

Head over to our private customer section and find out more about heating your single-family or multiple-family home with a heat pump. 

A7A1257_Schaf_Generationen_Natur_2000x1333.jpg

Are you a private property owner interested in domestic heat pumps? 

From the single-family home to large buildings, computer centres and heat networks: in cooperation with you as a trade partner, CTA ensures the right room temperature in many different places. See for yourself and delve into our application examples. 

CTA products in use