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6 | CASE STUDY | November 2019 | Climalife contact #16 HOUSING I BUILDING I FOOD INDUSTRY Trane® Leverages Solstice® Technology to Drive Cooling and Heating Innovation As world-wide demand grows for increasingly efficient products to reduce energy and resource consumption, cooling and heating technology companies are focused on system design that integrates safety, performance and lower environmental impact. One such business – Trane® – is leading the way in leveraging the performance benefits of Honeywell’s Solstice® low Global Warming Potential (GWP) refrigerants to develop a new generation of HVAC-R systems, replacing refrigerants such as R-134a scheduled for phasedown under F-Gas regulations. The partnership with Honeywell has enabled Trane® to create new process cooling and heating systems focused on combining low environmental impact with enhanced perfor- mance. This includes the launch of its new CITY range, which widens the operating map of compact cooling and heating solutions for smaller commercial buildings by successfully integrating Solstice® ze with screw compressor technology. As part of its Global Climate Commitment, in 2014, the company committed to a 35% reduc- tion of its greenhouse gas (GHG) footprint from its own operations by 2020. To deliver on this goal, the company targeted a 10% increase in energy efficiency from a 2013 baseline – and has achieved the goal two years ahead of schedule. “By adopting Honeywell’s Solstice® technology, we have created solutions that improve performance for customers while also improving the environmental impact of refrigerants to the very minimum.” Erik Van Oossanen, Portfolio Manager, Applied Chillers Europe Trane® The Needs • Identify low GWP refrigerants that would meet the exacting requirements of the Ingersoll Rand portfolio of EcoWise products, enabling customers to reduce their GHG footprint and save money without sacrificing performance or safety. • Successfully integrate the selected refriger- ants into new product designs to guarantee equivalent or better performance than prede- cessor refrigerant and chiller combinations. • Adopt refrigerants that not only enhance per- formance but are proven to be safe to use, are non-toxic and non-flammable*. • Equip customers against the spiralling costs associated with F-Gas HFC phasedown refrig- erants, such as R-134a. *Solstice® ze is non-flammable below 30°C. + More info at: climalife.dehon.com/ solstice-zd The Solution • Honeywell’s new generation HFO refrigerants have been widely adopted by Trane® for its cool- ing and heating systems. In 2014, Trane® spec- ified Solstice® zd (R-1233zd), with a GWP = 1, for its ECTV centrifugal chillers and then went on to integrate Solstice® ze (R-1234ze), GWP <1, in 2016 for its screw and magnetic levitation chillers and water-to-water heat pumps. • In 2018, the company unveiled a breakthrough innovation, harnessing the potential of Solstice® ze to widen the operating conditions within the capacity range of scroll compressors to create its new compact CITY cooling and heating offer with screw compressor. • The new operating conditions reach -12 °C for process application cooling as well as 80 °C for heating purposes. The Benefits • Created wider operating maps for Trane® chil- lers and heat pumps, opening up new product design opportunities, including the new CITY range of HVAC-R products. • Enhanced system performance in establi- shed markets, including data centre applica- tions, and new products for process industries using negative temperature applications, such as food and beverage, replacing natural refri- gerants that require significant safety mitigation systems. • Helped improve overall efficiency, with the potential to lower the total cost of system ownership. • Provided environmental preferable solutions that are safe and reliable, offering a near zero GWP alternative to natural refrigerants without any of the inherent safety concerns. • Opened up new process cooling and hea- ting system design innovations, stretching the capacity reach at both ends of the spectrum from 150 kW up to 2800 kW, enabling the intro- duction of new screw compressor chiller and heat pump systems.