ADVANCED MATERIALS

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Shot of a mature man shopping in the cold produce section of a supermarket
Shot of a mature man shopping in the cold produce section of a supermarket

Air Conditioning, Refrigeration and Heating

Honeywell has invested a billion dollars in research, development, and new capacity for Solstice® HFO technology to help businesses transition to lower-carbon future and deliver outstanding business results.

As refrigeration is a key component of your business, the choice of refrigerant matters. That’s why, the decision about choosing the right refrigerant is as much commercial, as it’s technical. Whether you’re building new or retrofitting an existing refrigeration system, Honeywell has the expertise to help you meet energy efficiency and sustainability goals, without sacrificing system performance. We invite you to speak with our expects to discuss how choosing a right refrigerant can help you achieve better business outcomes. 

Explore our range of lower-GWP and energy efficient refrigerants

Solstice® HFOs
Hydrofluoroolefins (HFOs) are the fourth-generation of fluorinated materials that are used as refrigerant, blowing agents, propellants, and solvents. They have ultra-low global warming potentials, and are non-ozone-depleting.
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Solstice® HFO Blends
Honeywell’s HFO blended refrigerants combine low or reduced global warming potential refrigerants with increased energy efficiency.
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Genetron® HFCs
Hydrofluorocarbons (HFCs) are frequently used as refrigerants, blowing agents, propellants and solvents. They were developed to be non-ozone depleting alternatives to chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs).
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Featured Applications

Solstice® refrigerants are delivering outstanding business results across applications and industries including Supermarkets, Cold Storage, Food Processing, Chillers, Heat Pumps and Comfort Cooling & Heating.

Food Retail

More than 60,000 supermarkets globally trust Solstice® refrigerants to help them comply with current and proposed regulations, with the aim of reducing the use of high-GWP HFCs. No matter what your store footprint is – small, medium or large – our Solstice® technology offers you refrigerants for low and medium applications, and for new systems and retrofits.

Applications include:

  • Supermarket system
  • Condensing unit
  • Standalone refrigerator
  • High side of cascade

Key Refrigerants

  • Solstice N71 (R-471A):
    Honeywell’s newest non-ozone depleting, nonflammable (A1), HFO-based refrigerant with <150 GWP is for new equipment in medium temperature applications. It improves* energy efficiency by 30% compared to CO2, and 13% compared to R-404A, helping supermarkets reduce their overall CO2. Learn more

  • Solstice® L40X (R-455A):
    This mildly flammable (A2L refrigerant), <150 GWP refrigerant provides better performance, lower CAPEX, and improved operating efficiencies compared to the higher GWP refrigerants it replaces. It is proven to provide CAPEX equipment reduction vs. other low GWP A2L refrigerants due to increased charge size. Learn more

  • Solstice® N40 (R-448A):
    This lower-GWP nonflammable (A1) refrigerant is for low- and medium-temperature supermarket refrigeration retrofits and new systems. It demonstrates lower energy consumption, increased refrigeration capacity, and coefficient of performance (COP) compared to R404A. Learn more

  • Solstice® 454C (R-454C):
    This <150 GWP, mildly flammable (A2L) refrigerant is a close match to R-404A equipment design. It demonstrates nearly 10% improved efficiency, within 8% capacity, and 96% lower GWP than R-404A. Learn more

  • Other refrigerants for Food Retail include Solstice® ze, Solstice® N15, Solstice® 513A and Solstice® yf.
Webinar
Solstice N71 for Supermarkets
Long-term, safe, efficient and reliable solution for large retail stores
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Customer Success Story
Solstice L40X: Edeka supermarket, Germany
Honeywell And KMW Equip Edeka With Cost-effective And Sustainable Solution
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Press release
Walmart chooses Solstice N40 to reduce its carbon footprint and improve energy efficiency
Global retailer to use Honeywell's Solstice® N40 (R-448A) refrigerant to reduce CO2 emissions and increase energy efficiency to support sustainability goals
Learn more

Buildings

Buildings are responsible for 40% of global energy consumption and 33% of greenhouse gas emissions. Moving toward renewable energy and eliminating fossil fuels in buildings will be key to our efforts to reduce emissions, lower energy costs, and tackle climate change.

Solstice® HFO refrigerants outperform HFC alternatives, offering improved efficiency and matching the capacity of higher GWP refrigerants, including R-410A, R-134A, and R-123. 

Applications include:

  • Chillers for comfort cooling and heating
  • Residential/Light Commercial AC, heat pumps, and district heating
  • Variable Refrigerant Flow (VRF) systems

Key Refrigerants

  • Solstice 454B (R-454B):
    Mildly flammable (A2L refrigerant), non-ozone depleting, zeotropic blend with improved efficiency. It matches the capacity of R-410A and has a GWP that’s 78% lower, minimizing redesign costs and capital expenditures. R-454B is the most optimized R-410A replacement, providing easy conversion with minimal design changes. Learn more

  • Solstice® ze (R-1234ze):
    Mildly flammable (A2L refrigerant), ultra-low GWP, and non-corrosive in comparison to ammonia, which is toxic, highly corrosive, and can pose serious risks to human health. R-1234ze also offers a significant improvement in chiller application efficiency over ammonia. Learn more

  • Solstice® zd (R-1233zd): Nonflammable (A1), ultra-low GWP of <1, better capacity, and similar efficiency to R-123. It provides higher efficiency in renewable heat and waste recovery in mobile and stationary applications when compared to R-245fa. Learn more

  • Solstice 513A (R-513A):
    Non-ozone depleting, low GWP, nonflammable (A1), HFO- based refrigerant developed to replace R-134a in new flooded and/or centrifugal chillers. It offers an optimal balance of properties, including high energy efficiency and lower GWP.
    Learn more

  • Solstice® N15 (R-515B):
    With a GWP of 293, this nonflammable (A1), azeotropic blend demonstrates environmental and performance benefits in new systems. Due to capacity and efficiency matches, it can be used in equipment designed for R-1234ze. Learn more

PRESS RELEASE
New French supermarket, E.leclerc in Moissac, selects Solstice L40X refrigerant for cold storage
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Press Release
Sinopharm Shanghai Biomedical Adopts Honeywell Solstice® N40 Refrigerant For Vaccine Cold Storage
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Press Release
Solstice N40 helps Universal Studios Beijing in meeting energy efficiency, environmental goals in cold storage
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Industrial Processes

Today’s facilities demand the highest standards when it comes to manufacturing products across sectors. To exceed stakeholder expectations and meet regulatory requirements, energy-efficient, low-GWP Solstice® refrigerants enable industrial Process cooling and heating to maintain optimal production conditions and increased production efficiency.

Applications include:

  • Chillers - low and medium temperatures
  • Industrial process - non chiller
  • Industrial high temperature heating

Key Refrigerants 

  • Solstice® ze (R-1234ze):
    A mildly flammable (A2L refrigerant), ultra-low GWP, and energy-efficient alternative to R-134a in air-cooled and water-cooled chillers and heat pumps. Learn more

  • Solstice® zd (R-1233zd):
    This nonflammable (A1), ultra-low GWP of <1 offers better capacity and similar efficiency to R-123. It addresses the challenging environmental needs of different industries such as centrifugal chillers and high-temperature heat pumps. Learn more

  • Solstice® N15 (R-515B):
    With a GWP of 293, this nonflammable (A1), azeotropic blend demonstrates environmental and performance benefits in new systems. Due to capacity and efficiency matches, it can be used in equipment designed for R-1234ze. Learn more

  • Solstice® 454B (R-454B):
    Mildly flammable (A2L refrigerant), non-ozone depleting, zeotropic blend. It outperforms other refrigerant alternatives in normal and high ambient conditions in a variety of applications because of its high critical temperature and broader operating envelope in low evaporating temperatures. Learn more

  • Other key refrigerants
    for Industrial Processes include Solstice® yf, Solstice® 454C, Solstice® N71, and Solstice® L40X
     
Press Release
Pure Harvest Smart Farms adopts Honeywell Solstice technology for sustainable farming in Middle East
Learn more
Press Release
Futraheat’s innovative heat pump design steams ahead with Honeywell sustainable technology
Learn more

Cold Storage

Our world relies on refrigeration to sustain a high quality of life, and cold storage is a key component of cold chain for food safety and vaccine delivery. Honeywell’s environmentally preferable Solstice® refrigerants offer high performance, while minimizing business risk and costs to help cold storage operators meet the increasing global demand of cold storage facilities.

Key Refrigerants

  • Solstice N71 (R-471A):
    Honeywell’s newest non-ozone depleting, nonflammable (A1), HFO-based refrigerant with <150 GWP is for new equipment in medium temperature applications. It improves* energy efficiency by 30% compared to CO2, and 13% compared to R-404A, helping supermarkets reduce their overall CO2. Learn more

  • Solstice® ze (R-1234ze):
    A mildly flammable (A2L refrigerant), ultra-low GWP and energy-efficient alternative to R-134a in air-cooled and water-cooled chillers and heat pumps. Learn more

  • Solstice® L40X (R-455A):
    This mildly flammable (A2L refrigerant), <150 GWP refrigerant provides better performance, lower CAPEX, and improved operating efficiencies compared to the higher GWP refrigerants it replaces. It is proven to provide CAPEX equipment reduction vs. other low GWP A2L refrigerants due to increased charge size. Learn more

  • Solstice® 454C (R-454C):
    This <150 GWP, mildly flammable (A2L) refrigerant is a close match to R-404A equipment design. It demonstrates nearly 10% improved efficiency, within 8% capacity, and 96% lower GWP than R-404A. Learn more

  • Other refrigerants for Cold Storage applications include Solstice® yf, Solstice® 515B and Solstice® N40.

*Based on thermodynamic analysis

Customer Success Story
As part of its ambition to become carbon neutral by 2030, Southwark Council in south east London developed a plan to decarbonise the gas-powered heat networks used by thousands of council homes across the borough.. Solstice® refrigerant met Vital Energi and the council’s requirements for safety, efficiency and cost.
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Customer Success Story
See how Ringsted DHC, in Denmark, redesigned its heat generation plant to limit fossil fuel use, reduce carbon emissions and improve efficiency while minimizing the cost to consumers. Learn the role Honeywell Solstice® ze refrigerant played in this project’s success.
Learn more

Refrigerated Transport

Transport refrigeration is one of the most challenging refrigeration applications and requires refrigerants that are efficient and reliable to keep in-transit supplies fresh and preserved.

Key Refrigerants

  • Solstice 452A (R-452A):
    This non-ozone depleting, nonflammable (A1), zeotropic blend is designed to be a lower GWP alternative to R-404A and R-507, for low- and medium-temperature applications in existing and new systems. Learn more

  • Solstice N71 (R-471A):
    Honeywell’s newest non-ozone depleting, nonflammable (A1), HFO-based refrigerant with <150 GWP is for new equipment in medium temperature applications. It improves* energy efficiency by 30% compared to CO2, and 13% compared to R-404A, helping supermarkets reduce their overall CO2. Learn more

  • Solstice® L40X (R-455A):
    This mildly flammable (A2L refrigerant), <150 GWP refrigerant provides better performance, lower CAPEX, and improved operating efficiencies compared to the higher GWP refrigerants it replaces. It is proven to provide CAPEX equipment reduction vs. other low GWP A2L refrigerants due to increased charge size. Learn more

  • Solstice® 454C (R-454C):
    This <150 GWP, mildly flammable (A2L) refrigerant is a close match to R-404A equipment design.  Learn more

  • Other refrigerants
    for Refrigerated Transports include Solstice® yf and Solstice® 513A.
     

Data Centers

Solstice® refrigerants are engineered to deliver room and precision air conditioning in Data Centers. As chips and electronics become hotter and more powerful, two-phase liquid cooling solutions using Solstice fluids enable energy-efficient and uniform cooling, better heat rejection, and reduced pumping power. 

Applications include:

  • Room and precision air conditioning
  • Liquid cooling (cold plates)

Key Refrigerants

  • Solstice® 454B (R-454B):
    Mildly flammable (A2L refrigerant), non-ozone depleting, zeotropic blend. It outperforms other refrigerant alternatives in normal and high ambient conditions in a variety of applications because of its high critical temperature and broader operating envelope in low evaporating temperatures. Learn more

  • Solstice® ze (R-1234ze):
    Mildly flammable (A2L refrigerant), ultra-low GWP, and energy-efficient alternative to R-134a in air-cooled and water-cooled chillers and heat pumps. Learn more

  • Solstice® zd (R-1233zd):
     Nonflammable (A1), ultra-low GWP of <1, offering better capacity and similar efficiency to R-123. Addresses the challenging environmental needs of different industries such as centrifugal chillers and high-temperature heat pumps. Learn more

  • Solstice N71 (R-471A):
    Honeywell’s newest non-ozone depleting, nonflammable (A1), HFO-based refrigerant with <150 GWP is for new equipment in medium temperature applications. It improves* energy efficiency by 30% compared to CO2, and 13% compared to R-404A, helping supermarkets reduce their overall CO2. Learn more

  • Solstice® N15 (R-515B):
    WIth a GWP of 293, this nonflammable (A1), azeotropic blend demonstrates environmental and performance benefits in new systems. Due to capacity and efficiency matches, it can be used in equipment designed for R-1234ze. Learn more
     

Ice Rinks

Solstice refrigerants help ice rinks produce high-quality ice and reduce energy consumption.

Key Refrigerants

  • Solstice® L40X (R-455A):
    This mildly flammable (A2L refrigerant), <150 GWP refrigerant provides better performance, lower CAPEX, and improved operating efficiencies compared to the higher GWP refrigerants it replaces. It is proven to provide CAPEX equipment reduction vs. other low GWP A2L refrigerants due to increased charge size. Learn more

  • Solstice® 454C (R-454C):
    This <150 GWP, mildly flammable (A2L) refrigerant is a close match to R-404A equipment design. Learn more
     

Organic Rankine Cycle

Recover wasted energy with Organic Rankine Cycle (ORC) using the best option for working fluid in your system. ORC delivers reliable power with energy-producing and operating savings. Low temperature heat and waste heat recovery can improve your business economics while reducing your CO2 footprint.

Key Refrigerant

  • Solstice® zd (R-1233zd):
    Ultra-low GWP of 1 and nonflammable. Proven ORC working fluid in geothermal industries, power generation systems, industrial processes, and transportation systems. It increases energy ORC system efficiency, reduces ORC size and costs, and improves return on ORC investment. Learn more

*Based on thermodynamic analysis

Customer Success Story
RRRink Sees Big Energy Savings with Solstice® N40 Retrofit
Learn more
Press Release
UTC ice rink gets the reliability and performance improvement it needed while also greatly reducing its environmental impact
Learn more

Automotive refrigerants

Transport refrigeration is one of the most challenging refrigeration applications, and therefore transport refrigeration systems require refrigerants that are efficient and reliable to keep in-transit supplies fresh and preserved. 

Solstice® 452A

  • Low GWP and nonflammable alternative to R-404A and R-507 for low- and medium-temperature applications in existing and new systems
  • Matched compressor discharge temperature of R-404A and R-507 at both low- and medium-temperature conditions Learn more

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*Based on thermodynamic analysis with following conditions:

  • Evaporation Temperature of 20F for R404A, R471A and CO2
  • Evaporator Superheat of 9F for R404A, R471A and CO2
  • Suction Superheat of 18F for R404A, R471A and CO2
  • Compressor Isentropic Efficiency of 65% and Volumetric as 100% for R404A, R471A and CO2
  • Ambient Temperature of 85F; Condensing Temperature for R404A and R471A is 105F (20F TD; 0F Subcooling) and for CO2 Gas Cooler Outlet Temperature is 89F (4F Approach Temperature)
  • Gas Cooler Pressure for CO2 is 83 bar which is 1204 psia
  • Capacities R404A, R471A and CO2 are matched
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