Cecchina, May 2025. Daikin introduces a new high-temperature option for its VZ series, using the R-1234ze refrigerant to expand the operating range of existing models. This enhancement enables the unit to supply hot water at temperatures of up to 90 °C, making it suitable for a wider variety of applications.
Unit features
The Daikin EWWH-VZ water-cooled inverter chiller and heat pump combines exceptional energy efficiency with low environmental impact. Using R-1234ze, a refrigerant with a very low Global Warming Potential (GWP), it offers a cooling and heating capacity ranging from 400 to 1900 kW*.1 Thanks to its compact design and full inverter technology, the unit ensures optimal performance and flexibility to meet a variety of operational needs. The introduction of this new option is a significant step towards decarbonising industrial heating. By extending the operating envelope, the EWWH-VZ series is well-suited to a variety of applications, including industrial processes and district heating networks, where high-temperature hot water is essential. This feature is particularly useful for industrial processes that require water at a high temperature for cleaning, sterilisation or production purposes.
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6 reasons to choose the Daikin high temperature water sourced heat pump EWWH-VZ
Reason #1: Sustainability
In line with the European targets for reducing fossil fuel consumption, there is a growing demand in the market for high-temperature heating solutions. In this context, the Daikin EWWH-VZ unit's capacity to deliver hot water at temperatures of up to 90 °C is particularly significant. It plays a pivotal role in decarbonising industrial processes and district heating systems, which have traditionally relied on fossil fuel-based boilers. Unlike conventional systems, the EWWH-VZ operates without combustion and uses a low-GWP refrigerant, which significantly reduces CO₂ emissions. Thanks to its full inverter technology and high energy efficiency, it also offers a more sustainable and cost-effective alternative to traditional boilers, helping industries and communities to transition towards more energy-efficient heating solutions.
Reason #2: Flexibility
One of the EWWH-VZ unit's key strengths lies in its exceptional installation flexibility, making it ideal for limited spaces. This is made possible by the innovative knock-down electrical panel, which can be installed up to five metres away from the main unit. This feature enables the system to be installed in tight technical rooms where traditional units would not fit. By separating the electrical panel from the main body, Daikin provides greater versatility in system design and layout, facilitating easier access for maintenance and optimising the use of available space, particularly in retrofit projects.
Click here to discover how Daikin meets the demands of applications requiring a compact footprint and minimal space.
Reason #3: Efficiency
In terms of efficiency, the EWWH-VZ is equipped with Daikin’s advanced single screw compressors featuring Variable Volume Ratio (VVR) technology. This innovation enables the compressor to automatically adjust the internal volume ratio according to the unit’s operating conditions, thereby maximising compression efficiency in all operating conditions. To further enhance performance, the system incorporates inverter technology, also referred to as a Variable Frequency Drive (VFD). This electronic component regulates the compressor’s rotational speed (RPM) by varying the frequency of the power supply. Consequently, the compressor can adapt its capacity continuously to match the actual heating or cooling demand. This combination ensures the EWWH-VZ delivers high efficiency, precise capacity control and reliable operation under a wide range of conditions, making it a smart, sustainable choice for industrial and commercial applications.
Reason #4: Reliability
To ensure maximum reliability, the Daikin EWWH-VZ is equipped with single screw compressors featuring variable volume ratio (VVR) technology. This system includes a mechanical adjustment mechanism that modulates the volume of the discharge port, enabling the compressor to delay or anticipate the end of the compression cycle. This minimises under- or over-compression, lowering operating costs and enhancing long-term reliability. These benefits are particularly valuable in demanding industrial applications where performance and long-term durability are critical. Another key contributor to system reliability is the Intelligent Chiller Manager (iCM), Daikin’s advanced control solution designed to optimise the performance of multi-unit systems. The iCM coordinates the operation of each unit in the plant to ensure they work together efficiently, meeting demand with minimal energy consumption and mechanical effort. Finally, to further enhance operational continuity, Daikin may offer Automatic Transfer Switches (ATS, upon demand). In the event of a power failure or outage, the ATS automatically switches the power supply from the primary source to a backup source. Once the primary source is restored, the system switches back, ensuring uninterrupted operation and protecting critical equipment.
Click here to find out more about Daikin's involvement in supplying chillers to CERN.
Click here to find out more about a major project involving a pharmaceutical industrial plant in Italy, for which Daikin provided a customised, high-performance HVAC solution.
Reason #5: After-sales services
Daikin is a trusted partner in the HVAC industry, with years of experience in leadership and a strong track record in delivering customised solutions for any needs. With over 50 years' experience manufacturing across Europe, Daikin combines custom engineering expertise, local market knowledge and exceptional after-sales support. Production facilities around Europe ensure shorter lead times, lower transportation costs and faster delivery. Thanks to its widespread presence, Daikin can provide rapid and efficient on-site assistance whenever needed. A key element of its after-sales service is Daikin on Site (DoS), a web-based, 24/7 remote monitoring platform that collects detailed operational data from units to control systems. This data is processed by Daikin’s Smart Centre, which transforms it into actionable insights. Users can monitor system performance remotely while Daikin experts optimise and maintain equipment in real time, reducing downtime and operating costs.
Reason #6: Ensuring performance peace of mind
To give customers complete confidence in their solutions, Daikin Applied Europe offers them the opportunity to participate in witness tests — dedicated testing sessions that simulate real-world operating conditions. These tests provide tangible proof that the selected units meet the specific requirements of each project. Factory Acceptance Testing (FAT) is also available to verify that each unit complies with all design specifications and functional criteria before delivery.
About Daikin Europe N.V.
The Daikin Europe Group is a leading provider of heating, cooling, ventilation, air purification and refrigeration (HVAC-R) technology in Europe, Middle East, and Africa. Daikin Europe caters to a diverse customer base within this region by designing, manufacturing, and marketing an extensive range of products, maintenance services, and turnkey solutions tailored for residential, commercial, and industrial applications. The company employs over 13,800 employees through 58 subsidiaries and operates 15 manufacturing sites in Europe (12), Turkey (1) and the Middle East (2). Daikin’s refrigeration products are available under the Daikin, Tewis, Zanotti, Hubbard, and AHT brands. Headquartered in Ostend, Belgium, for over 50 years, the Daikin Europe group is a subsidiary of the global group Daikin Industries.
About Daikin Industries Ltd.
Daikin Industries (DIL) is a global leader in heat pump, air conditioning and air filtration technology. The company employes over 100,000 employees worldwide. Founded in Osaka in 1924, it is the only manufacturer in the world that develops and manufactures heating, ventilation, air conditioning, and refrigeration equipment, as well as compressors and refrigerants in-house. Daikin was named one of the world’s top 100 most innovative companies by Clarivate (UK) and LexisNexis (USA), recognized for its leadership in technology research and intellectual property patents. For its fiscal year 2024 Daikin reported a record sales result of € 28,98 billion sales (1 April 2024 – 31 March 2025).
