Heat pumps are a key solution for the decarbonisation of buildings, reducing CO₂ emissions due to their high energy efficiency. CAREL offers a complete ecosystem of technologies for air/water and water/water heat pumps, including outdoor, indoor and all-in-one units. Through the addition of inverters, variable-speed compressors and electronic expansion valves, these units can adapt their operation dynamically based on actual conditions, optimising energy consumption and performance.

The c.pCO sistema programmable controllers have the task of managing the units, guaranteeing maximum flexibility and integration between system components. As further support, CAREL’s advanced software ensures optimised management of the refrigeration cycle, with upgraded and improved algorithms such as defrost management, low-load compressor operation, and revised alarm mapping. This software is either ready-to-use or can be easily customised using existing function blocks. The products available are A3 ready and ATEX-certified, designed to ensure safety and faster unit certification in applications where flammable refrigerants such as propane are used. Finally, the new Stone Virtual Loop tool can be used to simulate and test the thermodynamic behaviour of units while they are still under development, improving design and reducing validation times in the field.

https://ish.carel.com/heat-generation-on-show

Energy efficiency and smart building management are now at the heart of strategies aimed at reducing consumption and environmental impact. At ISH 2025, the focus will be on solutions to improve indoor air quality and the integration of digital platforms capable of optimizing automation, maintenance, and operational efficiency.

In this context, CAREL’s combined offering, enriched by Kiona — a Group company exhibiting at the CAREL stand for the first time — introduces innovative tools that ensure maximum flexibility and optimal performance for both commercial and residential buildings. Kiona’s approach to energy management in residential and commercial buildings is centralized and scalable. Its software-as-a-service platforms leverage self-learning artificial intelligence to optimize automation and reporting, delivering advanced control and reduced consumption.

Energy efficiency in residential buildings
The integration of Edge software into all residential units optimizes energy consumption while maintaining stable indoor conditions. Advanced analytical tools, such as temperature graphs and 3D visualizations, provide a detailed overview of building performance. In addition, the Web Port platform offers full control over systems, alarms, and energy consumption, with the option to connect and monitor photovoltaic systems and lighting.

Complete control in commercial buildings
For the commercial sector, the Web Port and Energinet platforms enable efficient management of all systems, featuring an intuitive interface and advanced reports for consumption monitoring. Centralized and secure access makes it easy to manage multiple buildings, ensuring complete control and compliance with environmental regulations.

Air quality and energy recovery
In commercial buildings, ensuring a healthy indoor environment with minimal energy impact requires advanced ventilation systems and efficient energy recovery solutions. CAREL offers rotary heat exchangers for both sensible and latent heat recovery, specifically designed to prevent bacterial growth or the formation of unpleasant odors.

The integration of reversible heat pumps with inverters and electronic expansion valves allows for efficient operation even at partial loads. For precise environmental control, CAREL sensors monitor temperature, humidity, and CO₂ levels in real time, while humidification systems regulate relative humidity to ensure occupant well-being. Airflow management dampers further enhance the overall system efficiency; their frames feature technological solutions designed to meet all space and airflow requirements.

https://ish.carel.com/intelligent-building-management-on-show

Virtual Loop is CAREL’s simulator that, using digital twin technology, replicates the behaviour of actual thermodynamic units in a virtual environment. Integrating seamlessly into the STone ecosystem, this tool revolutionises the design and testing of units such as heat pumps, chillers and rooftops, allowing developers to test and optimise the implemented control logic in real time. By eliminating the need for physical prototypes and complex infrastructure, it makes development much faster and significantly less costly, ensuring both high efficiency and reliability of the end product.

https://ish.carel.com/stone-virtual-loop-your-thermodynamic-assistant

pYC mini is the new line of programmable controllers designed to meet the growing demand for efficiency, safety, and versatility in HVAC/R applications. With a compact structure and the flexibility offered by programmability, pYC mini also complies with the latest regulations on low GWP refrigerants, including flammable gases (A3, A2L). Serial communication, available as standard, is used to directly manage the main actuators on the unit, such as electronic expansion valves, fan speed controllers, and compressor inverters, thus optimising control and energy efficiency. Wireless connectivity enables quick and intuitive setup using the APPLICA app, simplifying installation and monitoring. Finally, integration with supervisory systems is also available, for constant monitoring and detailed performance analysis.

https://ish.carel.com/optimised-performance-efficiency-and-programmability-pYC-mini

In commercial buildings, the design and efficiency of ventilation systems is essential to ensure healthy, energy-efficient spaces. CAREL develops advanced solutions for energy recovery in air handling units, managed by the k.Air family parametric controllers, covering a wide range of possible system layouts and reducing both times and costs, from design to commissioning. The thermal wheels for sensible and latent heat recovery ensure both hygiene and no contamination between the different air streams. When combined with reverse-cycle heat pumps equipped with inverters and electronic expansion valves, part load operation is possible, to reduce energy consumption. Furthermore, continuous indoor air quality monitoring via advanced temperature, humidity and CO₂ sensors allows precise control of air quality parameters. The offering is completed by adiabatic and isothermal humidifiers that keep relative humidity within a suitable range, as well as dampers for optimal management of air flows in AHUs, improving overall system effectiveness.

IAQ: a speech on how to combine comfort and health

Alexander Willesch, CAREL Sales Manager Ventilation in the D-A-CH-NL area, will give a speech entitled “Indoor air quality: how to combine comfort and health for occupants of buildings”. The presentation will take place on 18 March, from 11:00 to 11:25 in Hall 12 Level 1, E03, in German. It will focus on the importance of ventilation systems and CO2 monitoring in ensuring indoor air quality, as outlined in the European legislation.

https://ish.carel.com/indoor-air-on-show