News of Danfoss

Optyma Slim launches in North America

Danfoss has extended its line of fully equipped condensing units, designed for low temperature and medium temperature outdoor applications. This line of high quality condensing units is manufactured in the United States.

Optyma Slim is an extension of the existing Optyma line currently available in the US. Manufactured in the US and UL listed for outdoor use, the compact Optyma Slim is designed with contractors in mind and is easy to install and easy to service, with performance you can rely on. Optyma Slim features microchannel heat exchangers for high energy efficiency, low refrigerant charge, and easy maintenance; scroll compressors for quiet operation; and come pre-equipped with a defrost timer, filter drier, and sight glass to minimize installation time. Optyma Slim is available in sizes ranging from 1 hp to 8 hp for low temperature applications and 1 hp to 10 hp for medium temperature applications and is available for use with R-404A and R-134a.

Along with a full spare parts program, the Optyma line of condensing units are specifically designed to address the needs of contractors and wholesalers in the United States and Canada. The exclusive products used in Optyma condensing units have been selected for their high level of reliability, ease of installation, and very low maintenance requirements. With strategic stocking levels and availability throughout our distribution network, Danfoss supplies customers with the solutions they need, when and where they need them.

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Danfoss Solutions for Chillers Help OEMs Meet Energy Regulations with Confidence

Commercial chillers must be more environmentally friendly and consume less energy than ever before. Our sector needs to be ready to make real changes as new and diverse energy regulations and standards begin to be enforced worldwide. Danfoss is helping chiller manufacturers meet these challenges by offering unique products and solutions that have been tested and proven within our Application Development Centers around the globe. Compliance in 2018 and Beyond Driven by the need to reduce CO2 emissions, countries around the world are implementing new standards and regulations that require air conditioning systems to have better energy performance. The chiller industry remained focused on improving full-load efficiency for decades before pivoting to respond to the recent call for greater emphasis on part-load efficiency standards for equipment. New part-load rating methods will better account for how equipment operates within off-design conditions, when loads vary hour-by-hour and increasing emphasis on part-load efficiency is contributing to a building's overall efficiency. Very few currently-proposed systems meet minimum requirements. In Europe, for example, Danfoss estimates that 60% to 80% of current chillers do not meet the new criteria of regulation, based on information from the Eurovent database, and must be redesigned. Chiller manufacturers (OEMs) now face a new challenge: they have different thresholds under which to meet the new standards, depending on their region. Although significant energy savings can be obtained by applying advanced technologies and implementing innovative system designs, the amount of savings depends on the specific technologies and the particular applications. Consequently, technical committees are developing their own building efficiency standards to encourage the use of equipment that has been optimized for part-load operation. OEMs must also account for the impact of the expected HFC phase-down in their system design. This is driven by regulations and by market demand. In Europe, the 517/2014 directive on fluorinated gases and refrigerants requires an 80% reduction of CO2-equivalent refrigerant gas by 2030. Although most of the restrictions put in place by the EU concern the refrigeration industry and not air conditioning, the F-Gas Directive indirectly impacts the market expectations and will drive refrigerant changes coincident with increased efficiency requirements. Additionally, the recent Montreal Protocol expansion agreement to cover the phase-down of high global warming potential gases will indirectly impact the global markets. The US EPA expansion of the SNAP program to de-list specific fluorinated gases used in HVAC in specific applications will directly impact the markets. Additional regional phase-outs and bans similar to the EPA SNAP program are anticipated as the Montreal Protocol expansion is locally implemented. "Behind this regulatory configuration, governments will encourage the upgrading of all systems currently on the market. All standards require renewed ranges, and encourage enhanced energy efficiency for the entire industry. The industry is at a turning point and OEMs now need to integrate the regulatory dynamics and then drive the redesign phase and technological assessment with those insights," explains Ricardo Schneider, VP and General Manager, Danfoss, Turbocor Compressors.   new-your source for chiller solutions lighterWhich Priorities for New System Designs? Besides compliance with new manufacturing standards, new generations of air conditioning units must meet current challenges while offering comfort and reliability. Advances in compressors, heat exchangers, fans, and pump motors will lead to significant improvements in both. While internal and external loads vary throughout the day, there are additional contexts that require system flexibility. The building’s structural configuration, its function, and its surrounding climate will also define its energy usage. With the most extensive product catalogue available worldwide, Danfoss is best positioned to provide OEMs with options for chiller designs to meet market and application requirements. This allows OEMs to have a single entry point for most of the system. "The building sector represents about 40% of global energy use in regions like Europe and the USA. The consumption of air conditioning, heating, and hot water represents more than half of energy expenditure specific to this sector. Improving air conditioning and heating equipment would significantly enhance the building's energy balance. This approach should not only reduce emissions of greenhouse gas but also the cost of energy for building infrastructure and the impact on electrical grids." adds Ricardo Schneider. Better Efficiencies Start with our Application Design Centers For Danfoss, designing products that have less impact on the environment and working on a more sustainable use of resources are key issues addressed by innovation, research, and development. Our Application Development Centers (ADC) placed in strategic locations around the globe are dedicated to measuring, analyzing, and testing systems equipped with various component options. Our experts analyze the behavior of those components within the application and work side-by-side with our business partners to find solutions to their specific challenges. Due to the extent of our product portfolio, Danfoss is the only manufacturer able to offer such technical expertise of the components in the system and offer a collaborative setting to explore their uses together with our partners. "In our ADCs, we test the chillers, rooftops, and close control units to analyze the behavior of our solutions in given conditions. These investigations are oriented around the requirements of the energy regulations while trying to optimize interactions between different products in our portfolio. Our ambition is to offer a turnkey solution to our customers, where other actors still offer a juxtaposition of products," said Stefan Pietrek, Senior Director, Global Applications, Danfoss.   Read More

Engineering a cool supermarket with Danfoss technology

As part of the luxury shopping mall Paseo La Galeria, Danfoss has supplied a refrigeration control system for the supermarket “Superseis”, and systems management for better energy efficiency in the food refrigeration application.
Cooling case study from luxury shopping mall Paseo La Galeria
For this installation, Danfoss has been working with the EU Engineer, engineering consultant, as well as the OEMs associated to the projects to customize a system focusing on energy efficiency, reliability and food quality. The first installations in the supermarket chain were made two years ago, and the most recent opened in autumn 2016. More supermarkets are in the pipeline to be commissioned and opened. Danfoss has supplied mechanical controls, which include gas detectors for the system, and a total system management (ADAP-KOOL) for better energy efficiency and temperature traceability in the food refrigeration application. And for the store owners a reliable system is the number one priority: “The application of the refrigeration system in the supermarkets is very complex. Food needs stable temperatures to remain fresh and fit for consumption, having a reliable and robust system for proper operation for many years is a mandatory requirement in this segment. Danfoss supplied high quality components, as well as, commercial and technical support,” says Rodrigo Arias, Engineer and Technical Manager for Stores and Projects, Retail S. A (Supermercados Superseis, Stock y España Grupo Vierci), & ASHRAE Paraguay Chapter President Elect. Energy efficiency is high on the agenda in Paraguay, investments in infrastructure and buildings are being made. The supermarket chain is expected to continue growth and consolidate its position in Paraguay as the main retail chain, strengthening its technological development focused on energy efficiency and environmental sustainability. Their current focus is on the new trends to work with low refrigerant load systems, and secondary fluids. “The main reason to use secondary coolants (a solution of propylenglycol in medium temperature) is to reduce refrigerants leaks. To reduce refrigerant charge in low temperatures we have used condensing units in cascade with glycol systems. In this way the pipes containing refrigerant have been reduced to less than 40 meters, reducing the risk of leakeages,” says Prof. Ing. Roberto R. Aguiló, President of AAF (Asociacion Argentina del Frio), President ASHRAE Paraguay Chapter, ASHRAE Fellow, involved as the engineer consultant leading the project. The investment in this particular project, including the supermarket, shopping mall and buildings is worth 220 million US Dollars. Danfoss’ presence in the region was a defining factor. “The strong presence of Danfoss in the region, as well as a complete portfolio makes it possible to trust everything needed to a single provider, as well as the undisputed support of the brand globally. In countries like Paraguay, where suppliers are from abroad, it is good to know that Danfoss will always be present, regardless of the origin of the equipment purchased,” says Rodrigo Arias.   Read More

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