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>

The heat pumps on site

Marcel Müller

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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 

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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 

<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

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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>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

<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

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

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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 

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Preview

Environmentally friendly and efficient air-conditioning, cooling and heating. It is easier to live and work where the temperature and air-conditioning are right.

cta wärmepumpen Munsingen Regional Sommer

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CTA –  Swiss quality heat pumps and  Air conditioning 

Nous nous occupons de climatiseurs, de groupes frigorifiques et de pompes à chaleur pour que température et climat soient en harmonie, pour l’homme et la nature.