R-410a

Mitsubishi Electric Trane HVAC US LLC (METUS), a pioneering supplier of Ductless and Ducted Mini-split and Variable Refrigerant Flow (VRF) heat pump and air-conditioning systems, announces its upcoming launch of a new line of products utilizing a low global warming potential (GWP) refrigerant, marking a significant step forward in environmental sustainability in light commercial and residential heating and air-conditioning solutions. The new products are anticipated to be available in early 2025. The innovative product line, designed for both light commercial and residential applications, not only meets but exceeds current regulatory requirements without compromising performance. New products feature R-454B Starting January 1, 2025, A2L refrigerants such as R-454B will be the new industry standard The new products feature R-454B, a next-generation refrigerant with a GWP that is nearly 78% lower than R-410A. METUS is committed to developing products that utilize low-GWP refrigerants to uphold the company’s values of environmental stewardship and align with global efforts to phase-down high-GWP refrigerants as mandated by the American Innovation and Manufacturing (AIM) Act. Starting January 1, 2025, A2L refrigerants such as R-454B will be the new industry standard. "Our new A2L products are engineered to provide efficiency and reliability,” said Mark Kuntz, CEO of METUS. "The all-climate, all-electric heat-pump technologies we offer are inherently low-carbon solutions, and the introduction of these new refrigerants makes them even more sustainable. This transition ushers in significant technological advancements, including some models having improved cold climate heating performance, enhanced safety features, advanced sensors, or improved internet connectivity." Mitsubishi Electric’s new systems In addition to environmental benefits, Mitsubishi Electric’s new systems are equipped with advanced safety features tailored to handle A2L refrigerants. Many of Mitsubishi Electric’s new systems feature safety features such as built-in leak detection sensors, shut-off valves and smart control logic, promoting safe operation and ease of installation.

The HVAC industry is beginning to transition to new refrigerants required by the American Innovation and Manufacturing Act of 2020, which gradually phases down the use of existing classes of refrigerants and establishes new requirements for the refrigerants used in air conditioners and heat pumps. The new class of refrigerants has a lower global warming potential than current ones. As part of this transition, the U.S. Environmental Protection Agency (EPA) has set transition dates for new equipment required to use new refrigerants, commonly referred to as A2Ls. Commercial air conditioners EPA is evaluating an extension of transition dates by one year only for Variable Refrigerant Flow (VRF) systems Residential and light commercial air conditioners and heat pumps manufactured after Jan. 1, 2025, must use the new refrigerant. The equipment manufactured prior to this date has a one-year grace period to be installed — a Jan. 1, 2026, installation deadline. For products that do not require field assembly, such as window air conditioning units, the rules establish the final date of sale as three years after the manufacture compliance date — a Jan. 1, 2028, sale deadline — without a compliance date for installation. EPA is evaluating an extension of transition dates by one year only for Variable Refrigerant Flow (VRF) systems with capacities of 65,000 BTU/h (19 kW) or more. Heat pump equipment Existing air conditioning and heat pump equipment is not subject to EPA regulations and can continue to be used through equipment end-of-life. Components used for servicing and repair also are not subject to EPA regulation. The supply of R-410A, R-134a, and other refrigerants to meet servicing needs will remain available for the foreseeable future even as overall production and imports decline through the middle of the next decade, as was the case in prior refrigerant transitions in the 1990s and early 2000s. How A2Ls are Different Each equipment manufacturer will have their own roll-out strategy and timeline All refrigerants are required to be classified by toxicity and flammability. A2Ls retain the same toxicity designation — non-toxic — as their predecessor (R-410A). However, the flammability has been reclassified as Class 2L (lower flammability), compared to Class 1 (no flame propagation) for R-410A. A2L refrigerants require redesign of the HVAC equipment. It is important that home builders actively begin to plan for the transition, and engage with their suppliers and installers to ensure an adequate pipeline of equipment in the upcoming months and to avoid potential bottlenecks, delays and last-minute change orders. Each equipment manufacturer will have their own roll-out strategy and timeline, but these changes are imminent and will happen over the coming months. Updating installation instructions To address the slight increase in flammability, equipment manufacturers are adding safety features to equipment, revising transportation and handling procedures, and updating installation instructions. Primary mitigation measures for the building include: Minimizing the risk of refrigerant leaks by requiring enhanced testing of refrigerant lines using both pressure and vacuum methods, requiring specific joint types, and requiring nail plates at framing members where lines running through, and Controlling the refrigerant concentration in the building in a potential leakage scenario to levels below the flammability limit. Leak detection sensor In many cases, equipment manufacturers will add a leak detection sensor installed in the air handler unit and programmed to activate the main fan to quickly circulate the air throughout the home to reduce refrigerant concentration. Other safety strategies can include the use of shut-off valves also activated by leak sensors Other safety strategies can include the use of shut-off valves also activated by leak sensors and designed to limit the quantity of the refrigerant that can leak out. For systems without leak detection sensors, the quantity of the refrigerant in the system, including the lines, will need to be sized more carefully such that a refrigerant leak into the smallest space (e.g., bathroom) directly served by the system would not exceed the established concentration limit. Fire-rated floor assemblies Additional documentation requirements include a permanent label on the equipment listing the company that installed the system and the weight of the installed refrigerant. Although there are several A2L refrigerants approved for use, the primary two refrigerants that you should expect in the market are R-32 and R-454B. Each equipment manufacturer will specify which refrigerant is used for their equipment. For multifamily buildings where refrigerant lines penetrate fire-rated floor assemblies, the building code may require that the refrigerant lines be placed in a fire-rated shaft or other fire safety measures be implemented. Developers should coordinate designs with their MEP firms. The shaft requirements can impact plan layouts and architectural designs. Centrally Ducted System vs. Mini Splits Different mitigation strategies will be specified for centrally ducted systems vs. mini splits Different mitigation strategies will be specified for centrally ducted systems vs. mini splits. Again, builders should reach out to their vendors for information and follow installation instructions to make sure all required safety measures are implemented so that concentration limits are not exceeded in case of a refrigerant leak. Software programs for sizing equipment and for energy modeling should use updated specifications for the new equipment with A2L refrigerants. What Should Home Builders Do Right Now Have a transition plan in place that achieves the following goals: Coordinate a switch-over timeline with vendors and installers. Ensure a sufficient pipeline of existing equipment before the switch-over and new equipment after the switch-over (old and new equipment will not be compatible unless specifically stated by the manufacturer). Coordinate with their mechanical system designer (for multifamily buildings, evaluate if a fire-rated shaft is required). Make sure the HVAC contractor is knowledgeable on the new installation requirements and safety measures for the specific equipment that will be installed in their homes. Ensure that installation instructions are available from the manufacturer for the specific units to be installed in the homes. Coordinate between all involved parties throughout the process and establish a direct feedback loop. Information about the status of building codes regarding A2L refrigerants in each state can be found using this interactive map from the Air-Conditioning, Heating, and Refrigeration Institute (AHRI).

Carrier is updating one of its most compact, indoor chillers — the AquaSnap® 30MP water-cooled scroll chiller — to be more environmentally responsible and user-friendly. Carrier is a part of Carrier Global Corporation, the global pioneer in intelligent climate and energy solutions. The AquaSnap 30MP will now come with refrigerant R-32, which was chosen for its lower environmentally balanced impact, high energy efficiency, wide availability, and ease of use. In addition to a new refrigerant, the chiller has also been modernized with new PIC6 intelligent controls that provide an advanced, 4-inch graphic display with BACnet™ MS/TP or IP. Lower GWP refrigerants The 30MP indoor chiller comes in condenserless and water-cooled versions The 30MP indoor chiller comes in condenserless and water-cooled versions. Its compact modular design makes it ideal for easy replacement, retrofit, or new construction applications, with the ability to pipe together up to eight chillers for an increased capacity of up to 640 tons (2,250 kW). Carrier is committed to providing our planet and people a better future by offering the best refrigerant for each application, and is shifting to lower GWP refrigerants across its chiller offerings, with R-513A, R-515B, and R-1234ze(E) in medium-pressure centrifugal and screw chillers; R-1233zd(E) in low-pressure centrifugal chillers; and R-32 in scroll chillers. Carrier’s 2030 ESG Goals The use of lower GWP refrigerants supports Carrier’s 2030 Environmental, Social & Governance (ESG) Goals, including helping customers avoid more than 1 gigaton of greenhouse gas emissions by 2030. The chiller is manufactured at Carrier’s commercial HVAC factory in Charlotte, North Carolina.

Trane® Residential has announced that it is renaming certain products within its product portfolio in alignment with the company’s transition to low Global Warming Potential (GWP) refrigerants. new tiering approach Trane is also introducing a new tiering approach, grouping products within the traditional split systems and packaged unit categories based on shared platform characteristics and differentiating features. These changes are aimed at helping consumers better understand Trane’s new models within its product portfolio as it begins to convert most of its residential products from R-410A to R-454B ahead of the Jan. 1, 2025, federal deadline. Throughout 2024, Trane’s low GWP product updates will be reflected on the Trane website and across the company’s consumer-facing literature. Descriptive approach “Our new naming and tiering process for Trane’s new low GWP compliant residential product portfolio will revolutionize the homeowner shopping experience,” said Katy Muti, Brand & Content Marketing Leader, Americas for Trane Technologies. “By taking a more descriptive approach, our dealers can cater to customer preferences more strategically, anchor our pricing strategy, and upsell or cross-sell products accordingly.” three new tiers Trane’s three new tiers will group products based on shared characteristics and give names to address these differentiating features, allowing homeowners to choose the solution that best suits their needs more easily: CHOICE – The best choice for quality products at a more modest price point. PRIORITY – Prioritizing whole-home comfort through advanced features working together to create enhanced comfort. PREMIER – Using the latest, most advanced technology to push the boundaries in delivering truly controlled, premier comfort. new naming approach The following low GWP Trane equipment will begin shipping from Trane Residential factories in early April 2024 and will be on Trane’s consumer website by the end of April, using the new naming approach: Choice 15 Single-Stage Heat Pump with WeatherGuard™ Top 15 Single-Stage Heat Pump Priority Variable Speed Air Handler

Trane Technologies, a global climate innovator announced its new residential product portfolio with innovative design upgrades to its highly efficient heat pumps and air conditioners, including next-generation refrigerants with 78% less global warming potential (GWP). Designed for even higher efficiency, the company’s re-engineered products will enable homeowners to meet their heating and cooling needs while reducing their energy costs and carbon footprints. new, sustainable technologies “As a global climate innovator, we’re continually on the pioneering edge of new, sustainable technologies, and have proudly led the industry in the transition to next-generation refrigerants,” said Dwayne Cowan, president, of Residential HVAC, Trane Technologies “Coupled with our advancements in energy efficiency and clean technology, this will play an integral role in achieving our Gigaton Challenge – a pledge to reduce one billion metric tons of greenhouse gas emissions from our customers’ carbon footprints by 2030. We are proud to continue driving bold climate action – doing the right thing for our industry, our customers, and the planet.” improving efficiency “At Trane Technologies, we believe that improving efficiency is foundational for a decarbonized future,” said Katie Davis, vice president of engineering and technology, Residential HVAC, Trane Technologies. “We seized the transition to a new, low-GWP refrigerant as an opportunity to redesign our product portfolio with our cutting-edge technology, lead within the emissions reduction space, and further innovate for a more sustainable world.” Enhancements to the product portfolio Next-Generation, Low-GWP Refrigerant – More sustainable, environmentally conscious R-454B refrigerant and Refrigerant Detection System technology with factory-installed sensors and mitigation panels to ensure safety. Industry-Unique Energy Efficiency Upgrades – One-of-a-kind variable speed systems that automatically adjust to more than 700 speeds based on real-time demands, enabling maximum energy efficiency, cost savings, and comfort. Smart Systems – Connected technology, including Trane® Link and the Trane Home app, enabling comprehensive, real-time diagnostics, ease of installation, and the potential for up to 5% additional energy savings. Ahead of federal regulations and deploying a phased approach throughout 2024, beginning with the company’s 15 SEER2 heat pump, Trane Technologies will transition most of its residential products from R-410A to R-454B – with all units exceeding safety standards. next-generation refrigerants Electric-powered heat pumps, which both heat and cool by moving warm air in or out of a home Trane Technologies has been a pioneer in the transition to next-generation refrigerants. The company uses R-454B in a variety of commercial HVAC systems and has used it successfully in field trials of its prototype for the U.S. Department of Energy’s Cold Climate Heat Pump Challenge which outperformed laboratory tests by surpassing the negative 20 degrees Fahrenheit requirement. Electric-powered heat pumps, which both heat and cool by moving warm air in or out of a home, are among the most energy-efficient products eligible for incentives and rebates available through the Inflation Reduction Act and Energy Efficient Home Improvement Tax Credit. 2030 Sustainability Commitments Through bold, industry-pioneering action and innovation, Trane Technologies is advancing its 2030 Sustainability Commitments, including the Gigaton Challenge to reduce customer emissions by a billion metric tons and its pledge to reach net-zero carbon emissions by 2050. The company’s emissions reduction targets have been externally validated by the Science Based Targets Initiative (SBTi).

Daikin Applied has introduced enhancements to its award-winning Rebel Applied™ commercial heating and cooling system. The packaged rooftop HVAC system is available in a bigger cabinet that provides 45-75 tons of air-conditioning capacity with supply airflow volumes of up to 29,000 cubic feet per minute (CFM).  climate-friendly refrigerant The new unit also features low-global warming potential (GWP) R-32 refrigerant. With the transition to a more climate-friendly refrigerant, the new upgrades provide building owners with a cost-effective solution to improve energy efficiency and start decarbonizing facilities. design and efficiency "Rebel Applied has already set the standard for high-performance design and efficiency, pairing unlimited configurability with low lifecycle costs," said Jim Macosko, Vice President of Product and Sustainability Solutions at Daikin Applied. Jim Macosko adds, "Adding R-32 to this packaged system delivers even greater energy efficiency and ability to cut carbon emissions. It enhances how buildings can be designed to advance decarbonization efforts and help optimize the environment indoors and out." R-32 refrigerant Not only is R-32 a more sustainable choice, but it stands as one of the most efficient and proven options available Daikin Applied has committed to R-32 for applications that previously used R-410A refrigerant, which is gradually being phased out by new federal and state regulations in the U.S. As a single-component refrigerant, R-32 boasts a two-thirds lower GWP compared to R-410A. Not only is R-32 a more sustainable choice, but it stands as one of the most efficient and proven options available. In fact, with over 230 million R-32 HVAC units already installed worldwide, this refrigerant has been tested and widely recognized for its exceptional performance. carbon-reduction-focused features The addition of R-32 to Rebel Applied adds to a growing list of efficiency- and carbon-reduction-focused features. For example, the system is available with Daikin inverter compressors, another technology that's core to decarbonization. By continually adjusting to building load, these compressors help Rebel Applied consume less energy at part load to deliver an Integrated Energy Efficiency Rating (IEER) as high as 20.3, more than 40 percent above the ASHRAE 90.1 Energy Standard for Buildings. Rebel Applied also features Sorbent Ventilation Technology® (SVT®) from enVerid Systems that allows building operators to decrease the volume of outdoor air needed and the total cooling load of their buildings, which can trim HVAC energy use by up to 30%. cabinet sizes The units feature an adaptable base channel designed to ease the replacement of various rooftop products Rebel Applied has three cabinet sizes — 45-75 tons (C cabinet), 31-52 tons (B cabinet) and 20-34 tons (A cabinet). These units also feature an adaptable base channel designed to ease the replacement of various rooftop products by fitting existing curbs and ductwork connections.  This eliminates the need for a transition curb, which inflates installation time and costs when replacing existing units.  Applications As a result, Rebel Applied is ideal for a range of facilities with distinct needs, from offices and hospitals to schools and retail stores. The C cabinet is available with R-32 and the other two will be transitioned to the low-GWP refrigerant in the coming months.

From temperate climates that reach mid-90 F in June and mild winters allowing people to be outdoors without jackets to the “May flowers” that bloom in early March, it’s evident that society is experiencing World Refrigeration Day’s 2024 theme: “Temperature matters.” In addition to driving climate change, global warming is driving changes in how people live and how industries adapt and innovate to support new dynamics. This is especially true for the HVACR Industry. Over the past several years, contractors have been busy installing and servicing cooling systems in climate zones that historically haven’t needed them. There’s a major focus on achieving more energy efficiency and lower water consumption in cooling the world’s escalating number of data centers.  Impact on HVACR Industry There’s also increased demand to conserve water in cooling towers and/or adiabatic condensers and for elevated indoor environmental quality (IEQ) to improve health and productivity. A few examples show how rising global temperatures are impacting the HVACR industry These few examples demonstrate how rising global temperatures are impacting the HVACR industry. Sharing a huge part of the spotlight of industry solutions are refrigerants, which now need to work harder than ever to keep people comfortable and foods, beverages, and pharmaceuticals at proper temperatures. And they must do so without contributing to global warming and other environmental concerns. Refrigerant priority #1: lower GWP Assessing refrigerants for their ability to address climate change concerns starts with their global warming potential (GWP). That’s why attention has turned to A2Ls, which offer significantly lower GWP than legacy refrigerants. The three “big players” in the A2L arena—R-454A, R-454B, and R-454C—are now being selected for new-generation equipment solutions in various HVACR applications. A look at GWP reduction in a sampling of these applications tells the story: R-454A and R-454C can provide a 94% to 96% reduction in GWP as an alternative for R-404A, while offering similar performance Applications that historically would use a new R-410A unit can transition to R-454B, resulting in a 77% reduction in GWP. The industry is also choosing HFO-1234yf, an A2L currently used in air conditioners in 95 million vehicles on U.S. roads. HFO-1234yf has an AR4 GWP of 4 and is also used as a blend component in Chemours A1 and A2L products. Although A2Ls are for new equipment only, lower-GWP A1 refrigerant solutions can help in retrofits. For most applications using a higher-GWP HFC in an existing system, there’s likely a lower-GWP HFC/HFO blend for retrofit applications Other refrigerant priorities Of course, the value of a refrigerant is based on more than just low GWP Of course, the value of a refrigerant is based on more than just low GWP. The true innovation in refrigerant development lies in striking the optimal balance between environmental impact and performance for a diversity of applications. For example, after developing what are now considered three major players in the future of refrigerants—Chemours Opteon™ XL40 (R-454A), Opteon™ XL41 (R-454B), and Opteon™ XL20 (R-454C)—our chemists remain in the labs and work with pioneering industry partners to lower GWP even more, without compromising other properties. It’s important to consider how well a refrigerant addresses several key factors: Low GWP and zero ozone depletion potential (ODP) Reduced energy consumption Circularity—the ability to be recovered, recycled, and reclaimed Lower operating costs over the lifetime of equipment Safety—for everyone from technicians to end users Overall performance—measured by capacity, reliability, and efficiency Can be serviced by a large existing workforce of trained technicians Responsible manufacturing focused on reducing carbon emissions Availability and supply chain strength A2L refrigerants have been designed with these factors in mind, raising the bar in terms of performance and support for environmental priorities. Addressing climate zone challenges In addition to solutions designed for today’s many residential, commercial, and industrial cooling and refrigeration applications, the industry needs a full toolbox of systems, components, and refrigerants to meet—in a highly efficient manner—the challenges of cooling and heating in various climate zones. These range from Zone 1, which is very hot, humid, and dry, to the subarctic Zone 8 ASHRAE divides the U.S. into eight major climate zones. These range from Zone 1, which is very hot, humid, and dry, to the subarctic Zone 8. In between these two extremes, we find various levels of heat/cold, humidity, and dryness. These climate zones provide system engineers with guidance for choosing the best designs—including refrigerant selection—so that each zone can be equipped with the appropriate system, optimized for year-round capacity, efficiency, reliability, and more. New-generation heat pumps For example, the high heat and humidity of a tropical climate put heavy demand on cooling equipment—from air conditioners to refrigeration systems. These cooling systems are likely to run most of the year, so choosing a highly energy-efficient option is paramount. By contrast, we have zones with overall colder ambient temperatures. Heat pumps must be properly sized to ensure occupant comfort. Cooling systems in these climates have limited use during the year, but they must perform reliably when needed. In climates where heating buildings take priority over cooling them, we’re finding a significant transition from traditional AC-only units to new-generation heat pumps. Heat pumps must be properly sized to ensure occupant comfort and keep the heat pump from “struggling” to control humidity when operated in AC mode. Choosing refrigerant solutions There is no question the world’s temperature is on the rise. According to the National Oceanic and Atmospheric Administration, since 1982, the rate of the Earth’s warming has risen approximately 0.36 F (0.20°C) per decade—more than three times the average rate of all previous decades measured. The 10 warmest years on record all occurred in the past decade. And 2023 was the warmest year on record for North America, South America, and Africa, as well as the second warmest for Europe. As climate change continues to warm up winters and heat up summers, refrigerants will play an increasingly important role in “cooling down” people and products and helping to reduce the impact that industry and society have on “heating up” the planet. Everyone can do their part by understanding that temperature matters, then choosing refrigerant solutions that have lower GWP, support other environmental needs, and offer the right combination of performance attributes for a given climate zone.

By now, most of the HVACR industry is familiar with the HFC phasedown portion of the U.S. EPA American Innovation and Manufacturing (AIM) Act that was signed in 2020 and finalized in 2021. The first phasedowns started Jan. 1, 2020, with a 10% reduction in HFC refrigerant production, importation, and consumption, and was followed by an additional 30% reduction that began Jan. 1, 2024. As these regulations work to achieve a total 85% HFC phasedown from historic baseline levels by 2036, Technology transition rules will start to impact the industry as early as Jan. 1, 2025. Technology Transitions Often referred to as “sector controls,” Technology Transitions are the second of three main sections of the AIM Act. They focus on limiting the use of HFC refrigerants and supporting A2L adoption by calling for global warming potential (GWP) limits for refrigerants based on specific applications, including refrigeration, air conditioning, heat pumps, and more.  three new-generation refrigerants Three new-generation refrigerants help create a clear path to making refrigerant transitions that comply with the rules Although the Technology Transitions program is rather complex (providing rules for which refrigerants or GWP limits apply for which applications and when) focusing on just three new-generation refrigerants helps create a clear path to making refrigerant transitions that comply with the rules and support more sustainable operations. While several new refrigerants have been developed recently, many of the HVACR industry’s applications and equipment can be covered by focusing on these three refrigerants: R-454A, R-454B, and R-454C.   R-454A (AR4 GWP = 239)   Developed to replace legacy refrigerants such as R-404A, R-454A is an HFO blend offering zero ozone depletion potential (ODP) and a GWP of 239, lower than R-404A’s GWP of 3,920. R-454A is classified as a mildly flammable, low-toxicity A2L, suitable for low- and medium-temperature commercial refrigeration applications. The AIM Act Technology Transitions set a maximum GWP of 300 for several types of systems with charge limits up to 200 lbs., such as remote condensing units for food retail walk-ins and cascade systems. These systems are ideal for R-454A, given the refrigerant’s improved performance and reduced GWP compared with R-404A.  R-454B (AR4 GWP = 467)  Regarding refrigerants of the future at work today, R-454B is likely the one you’ve heard the most about. Establishing itself as the predominant replacement for R-410A in new air conditioners and chillers, R-454B started being used earlier this year. R-454B will be used in most equipment manufactured after Dec. 31, 2024. Offering a GWP of 467 compared with R-410A’s GWP of 2,088 (a 78% reduction), R-454B has been selected by most air conditioning and heat pump manufacturers worldwide.   R-454C (AR4 GWP = 148)  R-454C, with a GWP of 148, offers compliance with AIM Act regulations and is suitable for new systems R-454C, with a GWP of 148, offers compliance with AIM Act regulations and is suitable for new systems in applications requiring a GWP of <150. Two examples are small standalone units and larger system architectures with a charge size of >200 lbs. being developed for supermarkets.   For Use in New Equipment Only  R-454A, R-454B, and R-454C are HFO-blend refrigerants and have slightly different R-32 and R-1234yf components percentages. All three are individually optimized for peak performance and carry an A2L mild flammability safety classification. As A2Ls, these refrigerants can only be used in new equipment designed to mitigate leaks and flammability risks and must be installed according to OEM instructions and in compliance with applicable safety standards and building codes.  Easy as A, B, C  In anticipation of AIM Act regulations and the continued adoption of R-454A, R-454B, and R-454C, the HVACR industry has ramped up A2L training and engineering support significantly over the past few years. So, while sorting through the regulatory changes and becoming familiar with the new refrigerant options may seem complex, focusing on these three A2Ls will hopefully make your refrigeration transition, and your business’s future growth as easy as A, B, C.  

Although the European Union is several steps ahead in the transition away from hydrofluorocarbon (HFC) refrigerants, members of the HVACR industry in other countries currently find themselves in a more urgent situation when it comes to stepping down HFCs and stepping up use of new-generation hydrofluoroolefin (HFO) refrigerants and emerging A2Ls. EPA’s AIM Act This is especially true in the U.S., where 2024 kicked off with an additional 30% reduction in HFC production and consumption under the EPA’s American Innovation and Manufacturing (AIM) Act. With every phasedown comes a decreasing supply. And with every passing year, more HFC-charged equipment reaches the end of its lifecycle—or at least requires repair.  Given the regulatory outlook, supply trajectories, global sustainability imperatives, and increased customer demand for businesses to be environmentally responsible, HVACR shops can no longer be “thinking about” how they will transition. It’s time to start engaging in activities to help ensure your business transitions as smoothly as possible.  Transcritical CO2 systems Many business advantages come with incorporating HFOs—especially A2Ls—into your portfolio It’s also important to understand that the transition is not just about “following rules.” Many business advantages come with incorporating HFOs—especially A2Ls—into your portfolio. Consider how proactively leveraging these advantages can support your business goals and growth. A2Ls, which include HFOs and HFO-blend refrigerants, offer similar operating characteristics to legacy refrigerants and a safer profile than ammonia and hydrocarbon refrigerants, and they are more energy efficient than R-410A and transcritical CO2 systems. Not only can A2Ls protect our planet because of their lower global warming potential (GWP) and ability to increase system efficiency, but they can also lower the operating cost throughout the lifecycle of refrigeration equipment. The sooner you can put these advantages to work, the stronger your position among customers will be—whether they are driven by environmental concerns, cost savings, better performance, safe environments, or all the above. Five key steps for refrigeration transition   So, with all this motivation behind you, how do you get started? Here are five key steps you can take to facilitate the refrigeration transition. Help ensure refrigerant supply by practicing the “Three Rs.” The Three Rs, also known as a refrigerant management plan, help ensure there is enough HFC supply to meet your needs as well as those of the industry. As HFC production and consumption phasedowns continue—resulting in reduced supply availability for servicing existing equipment—this step becomes increasingly critical. Consistently follow a process of refrigerant recovery, recycling, and reclamation. When servicing equipment, or taking it out of use, be sure to recover every possible bit of the refrigerant. Then recycle it for reuse or send it to a certified reclaimer to be reprocessed and reintroduced into the supply stream as refrigerant that meets all virgin purity specifications. Following a solid refrigerant management plan will also support your circularity and sustainability goals. Educate yourself on A2Ls. Learning about A2Ls means becoming knowledgeable about the many aspects driving their global adoption. By understanding their benefits over legacy refrigerants, differences in how they are used, safety considerations, and which OEMs are adopting them, you will be able to properly guide your technicians and customers, as well as outline a business strategy for introducing A2L equipment into your offerings. This knowledge becomes increasingly valuable as the world confronts climate challenges more aggressively than ever—as evidenced by the accelerated adoption of A2L refrigerants in North and South America, and their wide availability in Europe and Japan. Moreover, A2Ls are expected to see broad adoption in the U.S. in the near future, as more states amend building codes and standards to allow their use.  Be loyal to training. You should consider training for you and your technicians to be a part of your business’s DNA. Whether we’re talking about mildly flammable A2Ls or other HFOs or HFCs, staying current and keeping your technicians trained is highly important. Training is a top priority for ensuring safe handling, optimal equipment performance, and quality work that supports the integrity of our industry. In fact, there’s the potential for authorities to make it mandatory. But whether training is voluntary or mandatory, contractors should call on companies such as Chemours and industry associations that offer programs that train “the trainer” and the technicians.   Be prepared to communicate with your customers. Steps two and three, education and training, will give you a leg up when it comes time to have the “repair, retrofit, or replace” conversation with a customer. When this moment is imminent, make sure you’re prepared to have the discussion in a way that gives your customers all the options and helps them make an informed decision that is best for their home or business. Also, educate yourself on all the refrigerant options available today, so you can point out the advantages of one over another. These should include energy savings, environmental benefits, and performance attributes, plus the cost of purchasing new equipment or retrofitting existing equipment compared to continual repairs. Consistently use your trusted supplier. As HFCs are phased down, there will be a greater incentive for them to enter regions illegally. In addition to thwarting environmental goals, illegal refrigerants typically have poor quality makes them unsafe and inefficient for use. The best way to protect your crews, customers, and business is to continue to use your trusted supplier every time. Also stay away from the temptation of “too good to be true” prices, as these can be tied to counterfeit or illegal refrigerants. Reasonable transition Remember that phasedowns like those being implemented through the AIM Act have been structured to support a workable, reasonable transition. So, while there is a need to put your plans in motion, there is no need for panic.  You can ensure yourself of a smooth transition and reap the benefits of it by committing to starting these five steps now and continuing them consistently throughout the year. If everyone in the industry does their part, we can all support businesses, customers, and the planet.

The flammability of the new class of low-GWP refrigerants is a source of misunderstanding and unnecessary anxiety among contractors who will be working with the newer materials, which must be used by HVAC equipment manufactured beginning Jan. 1, 2025.   A2L refrigerants The newer A2L refrigerants, specifically R-454B, perform similarly to previously used materials such as R-410A, and flammability is so mild as to be almost negligible. What’s needed is more education to make contractors more comfortable with the newer refrigerants. And sensible precautions, of course.   flammability of refrigerants Among the trainers educating the industry on the benefits of, and needed precautions for, the new materials is Don Gillis, Technical Trainer of Chemours.   “The flammability part of it is the elephant in the room,” says Gillis. “Our training seeks to remove the fear of the unknown and to get ahead of what the expectations are.”  Don Gillis experience At Chemours, he is applying his real-world experience to address the practical aspects of the refrigerant transition Gillis’s background includes more than 32 years of experience in the industry, 24 of which were on a service truck. Before coming to Chemours, he was the Senior Technical Trainer for Copeland compressors where he helped to train thousands of contractors across North America.  At Chemours, he is applying his real-world experience to address the practical aspects of the refrigerant transition in hundreds of training sessions this year.   peculiarities and similarities of new refrigerants “Change is now coming so fast that technicians are struggling to keep up,” says Gillis. “We need more education, not just about the differences in the new refrigerants but also about the similarities. We need to understand the peculiarities and the similarities of new refrigerants compared to what we used in the past.”   Features of A2L refrigerants The refrigerants are safe when handled properly, offer lower toxicity, and have been used effectively around the world Working with A2L refrigerants such as Opteon XL41 (R-454B) is similar to working with R-410A. For R-454B systems, the installation and service procedures are similar. Moreover, the best practices that technicians have used for years remain applicable with A2Ls. These refrigerants are safe when handled properly, offer lower toxicity, and have been used effectively around the world to increase efficiency and reduce emissions.  When working with R-454B, processes that were once described as good practice will be required. These processes include purging a line with nitrogen to remove any residual refrigerant, testing lines under pressure for 60 minutes, and documenting the results.  training sessions Gillis is seeing higher-than-expected attendance at his training sessions this year, with actual attendance sometimes doubling what was expected. There are classes with more than 100 in attendance, even 200 and 300 in some cases. While most of the training is geared toward contractors, distributor training is similar, ensuring that the “counter people” speak the same language as their customers when it comes to the transition.   Urgency due to transition “We are not having an issue of people not coming to training,” says Gillis.  “I think right now there is a new urgency because [the transition] is happening. Dealers and distributors are telling them the new equipment is coming out, and they are peeking in to see what the hubbub is all about. We want everyone to get better. The more knowledge the better.”   R-454B refrigerant availability All equipment manufactured or imported beginning in 2025 will use newer refrigerants New equipment that uses R-454B refrigerant will be on the market within weeks. At least three original equipment manufacturers (OEMs) say they will have equipment out by the end of the first quarter. All equipment manufactured or imported beginning in 2025 will use newer refrigerants.  Misinformation Misinformation is a problem as the refrigerant transition looms, says Gillis. For example, 50 to 60% of attendees at a recent training session were still under the impression that the new refrigerants contain hydrocarbons such as propane. Not true. The flammability of A2L refrigerants more closely resembles the refrigerants currently in use than materials at the far end of the flammability spectrum.  Fact-checking and myth-busting A2L refrigerants have already been used safely for years in automobiles, window air conditioners, PTAC systems, and dehumidifiers.  “I’m all about fact-checking and myth-busting,” says Gillis. “You don’t know what you don’t know.” Some of the misunderstandings may have come from earlier messaging in the industry that addressed A2Ls along with other “flammable refrigerants” such as propane, thus confusing the matter.  Key points Key points Gillis seeks to communicate in his training sessions include:  ∙There are no hydrocarbons or propane in A2L refrigerants.  ∙Although similar to previous refrigerants, an A2L refrigerant cannot be used in an existing unit.   ∙No extra ventilation or placards are required for trucks carrying A2L refrigerants; tanks of Chemours’ Opteon XL41 (R-454B) refrigerant can be transported on their sides.   ∙The 440-pound maximum allowable refrigerant truck load stays in place.  ∙Safety and handling requirements and good installation and service practices are required.  ∙Factors such as servicing, installation, safety, pressure, temperatures, and oils are the same for R-454B as for R-410A.   To access educational resources, contractors and others may visit Opteon.com to request training by webinar, remotely, or in person. There are also YouTube videos available on demand.   training certificate Chemours provides a 2-hour certificate of attendance, with a number enabling “credit” with NATE, ACCA Although there is currently no EPA requirement for special training on the new refrigerants, the jury is out on whether a requirement might be forthcoming. There currently are also no federal or state certifications. Chemours provides a 2-hour certificate of attendance, with a number enabling “credit” with North American Technician Excellence (NATE), Air Conditioning Contractors of America (ACCA), or whomever.   high-GWP refrigerants The U.S. AIM Act will limit the amount of high-GWP refrigerants that can be made in coming years. As the manufacture of legacy refrigerants is phased out over time, existing legacy systems will need to use more reclaimed/recovered refrigerants from existing systems. Fortunately, the processes of reclamation are improving, and even refrigerant mixtures will still have value in the market moving forward. {##Poll1709537519 - What is your preferred format when it comes to training on new aspects of HVAC equipment and installation?##}

AHR Expo 2024 was abuzz with activity, befitting a dynamic industry in the throes of change.  Industry developments such as electrification and the refrigerant transition render business opportunities on the AHR Expo show floor, where exhibitors display a determination to meet the challenges and thrive in the process. Walking from booth to booth during the three-day show in Chicago, I saw the best the HVAC industry has to offer, up close and personal. Innovation and adaptability are the watchwords as the industry journeys into 2024 and beyond. Refrigerant Transition Top of Mind  Patented R-454B refrigerant enables a simpler transition without redesigning equipment The technology transition is well underway for OEMs seeking to meet a pending AIM Act deadline at the end of the year. OEMs are choosing to embrace either R-32 or R454-B refrigerant to replace legacy R-410A, which is being phased out. Patented R-454B refrigerant enables a simpler transition without redesigning equipment, while R-32 offers advantages such as higher capacity, higher efficiency, and easier cradle-to-cradle management. Arkema Arkema is the only producer of R-32 refrigerant in the United States. The newer refrigerant is being embraced as HVAC OEMs seek to meet the deadline of Jan. 1, 2025, to use lower-GWP (global warming potential) refrigerants in their products. The technology transition is just part of the AIM Act implementation that will also limit allocation and require refrigerant management. Chemours Chemours is a manufacturer of R-454A, R-454B, and R-454C refrigerants. At AHR, they presented hourly education sessions on a variety of subjects. The refrigerant transition will impact everyone in the industry, including refrigerant producers, equipment manufacturers, contractors, and end users. R-454B refrigerant provides identical performance in HVAC systems compared to the previous refrigerant (R-410A). There is less need to redesign equipment; just adding sensors for leak mitigation can address the mild flammability of A2L refrigerants. Because of the 2025 deadline, 2024 will be the “year of new products” in the HVAC market. OEMs pioneering Innovation  Carrier and others are offering smaller footprints, seeking to meet environmental targets Innovation in the HVAC market is led by companies such as Carrier, which has introduced 100 new products each year for the past eight years. Carrier and others are offering smaller footprints, seeking to meet environmental targets, and providing flexibility for customers. New products include the AquaSnap 30RC air-cooled chiller and the AquaEdge 19MV chiller with low GWP refrigerant to meet pending regulatory requirements.  Copeland Copeland, recently divested from Emerson, also emphasizes innovation, including 12 research and development (R&D) facilities, 1,700 engineers, and more than 3,000 patents. At a press conference at AHR Expo, the 100-year-old company announced it is a “new” company owned by Blackstone Private Equity.  Products featured Among the featured products at AHR are Copeland’s oil-free centrifugal compressor with Aero-lift bearing technology; and Copeland’s CC200 case controller, specifically designed to handle the unique challenges of the current retail grocery refrigeration environments. Copeland also pledges to play a role in educating the market about new trends and the transition to new refrigerants.  Emphasizing a Smaller Footprint  Trailblazer AGZ-F is an R-32 air-cooled scroll chiller that delivers 10% greater capacity and efficiency Daikin Daikin highlights the Atmosphera, a single-zone ductless split system (using R-32) that can reduce carbon emissions by 80% (compared to R-410A). Also, Trailblazer AGZ-F is an R-32 air-cooled scroll chiller that delivers 10% greater capacity and efficiency. Products emphasize a smaller footprint and less weight than their predecessors. Rebel Applied is a packaged rooftop unit that continually adjusts operation to address the building load, consuming less energy. Trailblazer HP is an air-to-water heat pump chiller with a reversing function that allows the product to switch between cooling and heating based on temperature requirements.  Friedrich Air Conditioning Friedrich Air Conditioning features the Breeze universally flexible inverter heat pump, a ducted mini-split for upgrading traditional equipment. It works with any furnace or air handler, has side discharge, is 40% smaller, and is cold weather capable to minus 13. Friedrich's new Vert-I-Pak is a line of M1-compliant single package Vertical Heat Pumps (available in 9K, 12K, 18K, and 24K Btu), supporting decarbonization efforts with heat pump operation down to 10°F. High Efficiency for Commercial and Residential Johnson Controls Johnson Controls exhibits their highly efficient residential and commercial HVAC solutions designed for Department of Energy (DOE) 2023 compliance and helping customers achieve Net Zero goals through decarbonization. On display was the York High-Efficiency 18 SEER2 Side-Discharge Heat Pump with up to 30% smaller footprint than vertical-discharge equipment. Johnson Controls-Hitachi Air Conditioning's Aircore 700 single split system is aimed at light commercial and residential. Midea Their 3-ton model achieved 118% of rated capacity heating output at minus 15 degrees Fahrenheit Midea, known for selling consumer products, has kept a low profile in the professional sector, selling products that are either OEMed for Carrier or private-labeled by a contractor company. Seeking to promote the Midea brand, the Chinese company is staking its claim on the trade market with an emphasis on performance: The company exceeded performance in the Department of Energy’s “ColdClimate Heat Pump Challenge:” Their 3-ton model achieved 118% of rated capacity heating output at minus 15 degrees Fahrenheit. Heat pump awareness Results of a survey conducted by Midea show that more than half of homeowners are not fully aware of heat pumps and their function. Awareness lags among contractors, too: 70% of contractors indicate they do not know that the current’s advanced heat pumps can generate 100% heat output to a minimum temperature of minus 4 F. Wide Selection of New Products Mitsubishi Electric Trane HVAC US Mitsubishi Electric Trane HVAC US emphasizes all-electric heat pump solutions. The Deluxe Wall-mounted H2i sumo System connects with an outdoor unit, and the intelli-HEAT dual fuel system can determine the best source of heat – electric or gas – on cold days. Among commercial products, Heat2OHeat Pump Water Heaters are designed to produce high-volume domestic hot water for commercial facilities in any climate. LG Electronics LG Electronics’ booth includes a wide product range, including advanced heating, ventilating, air conditioning LG Electronics’ booth includes a wide product range, including advanced heating, ventilating, air conditioning, and building management solutions for residential and commercial applications. Home electrification products include the LG R32 Air-to-Water Heat Pump Monobloc system; the LG Inverter Heat Pump Water Heater the LG Electronics Home 8 Energy Storage System, and ThinQ, LG’s mobile app. LG Art Cool Gallery multi-zone wall-mount indoor unit The LG Art Cool Gallery multi-zone wall-mount indoor unit features a customizable picture frame that doubles as a cooling and heating vent. Also, LG’s Medium and High-Temperature Hydro Kit Systems use a refrigerant-to-water heat exchanger to produce chilled or heated water. LG’s Split Compact M3 DOAS with Multi V S is suited to light commercial use where single-phase power is available and as an HVAC solution for outdoor air treatment. Easier Access for Technicians  Rheem Manufacturing New equipment at the Rheem Manufacturing booth at AHR Expo includes true multi-zone operation, smaller footprints, lighter weights, and components that are positioned for easy access by technicians. An LED in the control cabinet displays a fault code that identifies the problem to service technicians. The Resolute and Renaissance lines are commercially packaged heat pump units. The company is emphasizing the transition from R-410A to R-454B refrigerant by the end of 2024. Aeroseal Whether a new install or a retrofit, the product saves energy, saves money, and keeps customers compliant Aeroseal seals ducts by spraying a vinyl acetate polymer substance to increase HVAC efficiency. Whether a new install or a retrofit, the product saves energy, saves money, and keeps customers compliant, and a 30% tax deduction is available through the U.S. Inflation Reduction Act (IRA).  Airzone Airzone is a Spanish company that controls inverters and VRFs (variable refrigerant flow units). Their communication gateway controller incorporates protocols from various manufacturers, and the Easyzone is an easy-to-install zoning system.  Infinitum Infinitum manufactures a motor system that leverages a printed circuit board as a stator, making the motor system lighter weight and also smaller, quieter, and more efficient. The Aircore EC uses a standard printed circuit board manufacturing process to eliminate bearings. The component is used in blowers by OEMs Lau, Acme, Canarm, and Peerless, whose products are displayed at the booth.  Bell & Gossett Bell & Gossett debuts its line of smart, connected products designed to improve sustainability Bell & Gossett, a Xylem brand, debuts its line of smart, connected products designed to improve the sustainability of commercial buildings and reduce complexity in the design process. Combining pumps and smart motors are the e-1510 end-suction pump, e-80 vertical in-line pump, and TECHNOFORCE e-HV packaged booster system.  NIBCO Simplifying the job of an HVAC installer is the PressACR copper press connection system from NIBCO, which connects copper pipes without brazing, which involves soldering and high temperatures, thus a fire hazard. The patent-pending groove design and crimp pattern support the higher-pressure requirement of an HVACR system. Pipes are pressed together using PressACR jaws and adapter jaws in a variety of sizes. NIBCO also displayed its Webstone brand of residential and commercial valves.  Control Products Provide Data  Resideo Resideo displayed home system products, including the Honeywell Home T10+ thermostat with RedLINK 3.0; sensors enable temperature balancing for hot and cold spots. Pro-IQ Services provides software tools designed for the connected home, including insights on heating, cooling, water, and indoor air quality devices to help contractors track customers. Professional-grade water damage prevention, the First Alert L2 WiFi Water Sensor and Switch provide alarms if there is a water leak.  Schneider Electric The EcoStruxure Building Operation system is open system software for building and facility management Schneider Electric seeks to be “digital partners for our customers,” working with Fortune 500 companies seeking to achieve ESG (environment, social and corporate governance) goals. They help customers establish where they are currently vis-à-vis their goals and then deploy science-based key performance indicators (KPIs) to direct them to where they want to be. The EcoStruxure Building Operation system is open system software for building and facility management, including two products for the small and medium building (SMB) market. Energy measurement Schneider measures energy usage through power meters, indoor air quality, and energy spent to achieve efficiency, compiling data according to what the customer wants to achieve. They sell through a national sales team, direct branch business (20 branches), and 200 system integrators (EcoXperts). Their customers include QSR (quick-service restaurant chains) that control climate centrally with data compiled in the cloud.  Siemens Siemens displays solutions for smart, adaptable buildings for a sustainable tomorrow, including the Building X system and the Sustainability Manager application, providing an understanding of a building’s performance and tracking it against sustainability and compliance targets. The Building X Lifecycle Twin tracks operational building performance via a “digital twin,” providing an augmented reality (AR) headset through which one can view equipment with information superimposed on the screen. Uponor  Uponor seeks to leverage the capital cost of heating systems to deliver heating and hot water. They make pipes and connectors and other technologies, including the AuqaPort, which improves water quality and energy savings in domestic hot water (DHW) applications. They seek to future-proof buildings by combining energy efficiency and comfort. Water recirculates and provides hot water on demand using 40% less piping. A “radiant roll-out mat” is preconfigured piping that can be rolled out to simplify installation. 

The American Innovation and Manufacturing (AIM) Act is among the environmental initiatives and regulations driving the phasedown in the use of hydrofluorocarbon (HFC) refrigerants in the HVAC industry. The AIM Act’s schedule seeks to phase down HFCs by 85% by 2036. The first significant reduction in consumption and production under the AIM Act began on Jan. 1, 2022, representing a 10% reduction from a baseline value. The next major step begins Jan. 1, 2024, with an additional 30% reduction, followed by another 30% reduction starting Jan. 1, 2029. adoption of retrofit or new systems This phasedown, rather than phaseout, approach should prevent any debilitating disruption to the industry; however, the adoption of retrofit or new systems sooner rather than later is key to a smooth transition. “We have a unique opportunity to impact worldwide change, one business, one community at a time by supporting our customers through the phasedown of HFCs,” says Brandon Marshall, Americas Marketing Manager, Stationary and Specialty Applications, The Chemours Company. next-generation products Chemours seeks to help the industry navigate the complex technology and regulatory landscape As the inventor of Freon and Opteon refrigerants, Chemours has been driving evolution in the HVACR industry for nearly a century, innovating next-generation products for diverse needs and applications. As a champion of the HVACR professional, Chemours seeks to help the industry navigate the complex technology and regulatory landscape.  hydrofluoroolefin (HFO) refrigerants Chemours’ Opteon portfolio of hydrofluoroolefin (HFO) refrigerants features zero ozone depletion potential (ODP) and low global warming potential (GWP). The refrigerants offer a balance of performance, environmental sustainability, safety, and cost when considering retrofit or new equipment solutions. Chemours pairs these innovations with technical support, education, and customer service delivered by a team of experts with decades of experience. education and training  “Chemours is highly invested in providing the education and training that will facilitate [the transition], as well as delivering solutions that meet each customer’s unique needs, timeline, and budget,” says Marshall. “The vision of the AIM Act aligns perfectly with our corporate commitment to being the leader in sustainable HVACR solutions and a global force in protecting the environment,” adds Marshall. sustainable, better-performing solutions Chemours’ Opteon portfolio helps customers implement the right solution through the phasedown Chemours’ commitment to “courageous chemistry” drives its development of highly sustainable, better-performing solutions. Chemours’ Opteon portfolio helps customers define and implement the right solution through the phasedown. Many systems are still operating with R-22, although the supply is now limited to the reclaimed refrigerant. Due to dwindling supply, these users urgently need to retrofit their systems. The next phasedown under the AIM Act is coming quickly on Jan. 1, 2024.  Market price availability and impact For several years, Chemours has seen commitments from major OEMs to produce equipment operating with HFOs. Marshall says that continued HFC phasedowns, OEM adoption, and increased manufacturing of HFO refrigerants by companies like Chemours will impact market pricing and availability for HFOs and HFCs.  The industry can expect an exponential increase in retrofits and new installations of HFO-charged equipment. R-454B Chemours Opteon XL41 was the “big product” the company emphasized at the AHR Expo in February. The R-454B refrigerant is the new-generation solution paving the way for what lies ahead in the short- and long-term regulatory landscape. It is the lowest-GWP replacement for R-410A on the market offering a 78% reduction in GWP while providing value and peace of mind as the industry transitions away from HFCs, says Chemours. Opteon XL41 The more people we can introduce to Opteon XL41 and the stronger our collaborations, the greater the impact" Opteon XL41 has been selected by leading global OEMs, including Carrier, Johnson Controls, and Rheem, which have announced alignment with Chemours for the utilization of this product. “All of us realize that the more people we can introduce to Opteon XL41 and the stronger our collaborations, the greater the impact we can have in meeting environmental objectives,” says Marshall. commercial refrigeration sector The commercial refrigeration sector is quickly following air conditioning by embracing next-generation products such as Opteon XL10 (R-1234yf/ AR4 GWP 4), Opteon XL20 (R-454C/ AR4 GWP 148), and Opteon XL40 (R-454A/ AR4 GWP 239). “However, many businesses operating refrigeration systems need to walk before they run,” says Marshall. “Not everyone can immediately invest the money and/or time for new installations.” OEMs OEMs are supporting the transition by ensuring a healthy supply of retrofit equipment is available while keeping close tabs on the demand for new equipment charged with next-generation products. Several high-performance, efficient, and environmentally sound retrofit solutions exist utilizing HFO refrigerants such as Opteon XP10 (R-513A/ AR4 GWP 631) and XP40 (R-449A/ AR4 GWP 1397).  Leveraging resources  Ultimately, everyone must appreciate the value of A2Ls and be comfortable using them “By remaining data-driven, suppliers in the industry will be ready to meet changing demands and support the health of businesses and the planet,” says Marshall. Ultimately, everyone must appreciate the value of A2Ls and be comfortable using them. This requires ongoing education and training. There are many opportunities for this already out there, so technicians and the industry need to start or continue to leverage these resources, says Marshall.  webinars Chemours offers a variety of training to ensure the safe use of A2Ls and encourage adoption as soon as it is practical. This includes webinars with several industry partners and leaders, on-site training, online training brochures, videos, and customer support to ensure everyone is prepared for the transition. best practices Fortunately, the use of A2Ls does not amount to a situation of “back to square one” that requires technicians and installers to relearn everything while maintaining current skills to continue to service older systems. In reality, A2Ls such as Opteon XL41 (R-454B) feel very similar to working with R-410A. For R-454B systems, the installation and service procedures are similar to those of R-410A.  Moreover, the best practices that technicians have used for years remain applicable with A2Ls. These refrigerants are safe when handled properly, offer lower toxicity, and have been used effectively around the world to increase efficiency and reduce emissions, says Marshall. Environmentally responsible operations Environmentally responsible operations are a reality that will continue and escalate" “The world is locked into driving towards a more sustainable planet,” says Marshall. “Environmentally responsible operations are a reality that will continue and escalate." "This is driven not only by the regulatory landscape but also by corporate responsibility missions. The businesses that thrive will support these missions at every level of their operations.” sustainability  As the phasedown continues and receives more attention, consumers will join the conversation, driving everyone from contractors to facility managers to show support for environmental sustainability. Marshall says the installers and technicians need to be prepared to service these HFO-driven systems otherwise, that business will “walk out your door.” Regulatory compliance “Regulatory compliance may be the strongest motivator for change currently, but in our industry, every player must work to reduce the overall consumption of higher-GWP products,” says Marshall. “It is our responsibility to the communities we serve.” Chemours is a global chemistry company with leading positions in titanium technologies, thermal and specialized solutions, advanced performance materials, and chemical solutions, all working to create a better world through the power of our chemistry, according to the company.

Johnston County Public Schools, located in Smithfield, North Carolina, chose Carrier to improve energy efficiency and comfort at five schools. Carrier is a part of Carrier Global Corporation, a global pioneer in intelligent climate and energy solutions. AquaSnap® 30RB Johnston County Public Schools (JCPS), located in one of the nation’s fastest-growing counties, is the seventh-largest school district in the state. JCPS used money from the U.S. Department of Education’s Elementary and Secondary School Emergency Relief (ESSER) Fund to replace a dozen chillers. The school district selected Carrier’s AquaSnap® 30RB, an air-cooled liquid chiller offering an effective all-in-one package that is easy to install and maintain. New Equipment Replaced Old Chillers The schools are in North Carolina’s fastest-growing county with 5,000 students enrolled at the five schools The new equipment replaced chillers that were between 20 and 25 years old at Cleveland Elementary, West Clayton Elementary, and Clayton High in Clayton; McGee’s Crossroads Elementary in Angier; and Glendale-Kenly Elementary in Kenly. According to the latest census data, the schools are in North Carolina’s fastest-growing county with 5,000 students enrolled at the five schools and are part of a larger school system with more than 37,000 students in 48 schools. On-Site Training For Staff In addition to the startup of the chillers, Carrier also provided on-site training for the school system’s maintenance staff ahead of the new school year. “Johnston County Public Schools appreciates that Carrier’s AquaSnap Greenspeed intelligence technology provides best-in-class part-load efficiency with quiet part-load operation,” said Philip Samartino, Sales Specialist, Carrier. Shell And Tube Evaporator Philip Samartino adds, “The school district needed the reliability of the aluminum fin copper tube condenser coils and simplicity of the scroll compressor technology to handle compressor repairs in-house. Many schools also have older piping infrastructure so they preferred the shell and tube evaporator as it is less susceptible to fouling and clogging up from dirty piping systems.” AquaSnap 30RB features In addition to Greenspeed® intelligence, the AquaSnap 30RB features a rotary scroll compressor, Puron® refrigerant, a quiet AeroAcoustic™ fan system, easy to use ComfortLink™ controls, microchannel condenser coil technology, and high-efficiency variable condenser fans. “Carrier is working with school districts nationwide to implement layered HVAC replacement and retrofit solutions that improve learning environments,” said Meredith Emmerich, Vice President, of North America Commercial HVAC, Carrier. Meredith Emmerich adds, “With solutions tailored to each school’s needs, Carrier is committed to helping foster the long-term well-being of students and staff and encourage the use of ESSER funds to make critical improvements that will impact generations of students.”

The well-known Italian brand, Big Mamma Restaurant Group, has recently transformed an old four story bank into a striking new restaurant, Jacuzzi, in the heart of High Street Kensington, West London, United Kingdom (UK). In keeping with the grand design of this new ‘pleasure palazzo’, the interior environment needed to offer ultimate comfort and to help create a memorable and luxurious dining experience. Summit Design specified, designed and installed the comprehensive new heating and cooling system, utilizing two 45kW Panasonic 3-pipe ECOi EX MF3 units with nanoe X technology. Panasonic 3-pipe ECOi EX MF3 units installed The Big Mamma Group selected the abandoned old bank building on Kensington High Street The Big Mamma Group selected the abandoned old bank building on Kensington High Street, for its fourth restaurant in London – Jacuzzi, a luxurious 170-seat Italian dining experience. Be-decked with high end Italian treasures and decadent interior design, the site covers four floors, including a Sicilian mezzanine floor with a retractable roof opening out to the bustle of High Street Kensington. Transforming the old historic bank building to a fully functional and fit for purpose restaurant required extensive renovations, including an entirely new heating, cooling and hot water system. To service the 4,000 sq. ft building, Jacuzzi needed a high-capacity performance and energy efficient solution, providing heating and cooling with accurate climate control and ultimate comfort.  Panasonic 45kW 3-pipe ECOi EX MF3 series With Summit Design’s in-depth understanding and knowledge of heating and cooling, the company specified two Panasonic 45kW 3-pipe ECOi EX MF3 series with nanoe X and with a range of indoor units including adaptive ducted, 4-way cassettes, ceiling suspended, floor mounted, wall mounted and slim ducted units. “The Panasonic ECOi EX series is one of the most advanced VRF systems currently on the market, offering not only high performance for simultaneous heating and cooling but also sophisticated installation,” says Dan Sparling of Summit Designs, adding “The solution is ideal for commercial applications having enough capacity to run the energy efficient system for the entire building.” Dan Sparling adds, “Furthermore, the wide selection of indoor units that the Panasonic range offers meant that we could adapt the system design to select the best and most appropriate indoor units, ensuring best choice for each space. It was very important for the heating, cooling and ventilation system to blend seamlessly into the interior design, so as to not distract in any away from the impressive diner experience and general ambience of this high-end restaurant.” Powerful performance for both heating and cooling The Panasonic ECOi EX MF3 offers powerful performance for both heating and cooling The Panasonic ECOi EX MF3 offers powerful performance for both heating and cooling. Designed with a twin rotary inverter compressor, the system is highly energy efficient even in extreme ambient temperatures of say 43 degree C and continue to cool, even when the outside temperature reaches a maximum of 52 degree C, with a high SEER of 3.49 and SCOP of 4.17. The optimized energy consumption was enhanced by the addition of the heat recovery box, which was able to connect multiple indoor units with a single box. The heat exchanger captures the waste heat from the cooling operation and is able to redirect it using the 3-pipe system to areas requiring heating. This capability allows the system to heat and cool multiple areas simultaneously, allowing for greater independent climate control across the four floors and flexibility in meeting a comfortable climate for all. Panasonic system offers flexibility The installation at the large Jacuzzi property was made easier by the flexibility of the Panasonic system. The units provide up to 1000 m of piping and up to 30 m height difference between the indoor units, meaning the system was able to extend its reach across all four floors with ease. The ECOi EX MF3 system provides easy to use and effective temperature and humidity controls, has a newly designed fan for optimized airflow, and customizable settings that can be tailored to suit the needs of the building. Panasonic ECOi units come as standard with nanoe X The Panasonic ECOi units now all come as standard with nanoe X technology" “The Panasonic ECOi units now all come as standard with nanoe X technology, a great benefit that really adds value, especially to a luxury dining experience like the new Jacuzzi restaurant,” said Rachel Wales, Regional Sales Manager for Panasonic. Rachel Wales adds, “The nanoe X technology inhibits the growth of harmful bacteria, viruses, and other airborne pollutants. With nanoe X, the system can reduce unpleasant odors, tackle mold and allergens and even help keep hard and soft surfaces clean, all of which culminate in creating a better indoor air quality and enhancing the experience for staff and guests alike.” Quick and convenient installation The Panasonic system was able to be installed quickly without any problems, helping deliver the opening of the new restaurant on time. Dan Sparling stated, “We are so pleased with the operation of the system so far and are assured that staff and guests of the restaurant are kept comfortable throughout their experience.”

High-performance Toshiba heating and cooling equipment has been used in combination with a solar photovoltaic (PV) and battery storage system as part of a project to help future-proof a five-bedroom home in Cheshire. Toshiba Carrier UK Ltd (TCUK) is part of Carrier Global Corporation, the global provider of healthy, safe, sustainable, and intelligent building and cold chain solutions. Toshiba ESTIA air-to-water heat pumps Two 11kW Toshiba ESTIA air-to-water heat pumps operating on lower global warming potential (GWP) refrigerant R-32 were installed at the 5,500ft2 property, alongside two Toshiba MiNi VRF systems. The Toshiba solution replaced an inefficient heating system and is supported by a 16kW solar PV installation plus 11kW of battery storage and measures including triple-glazing. Energy-neutral outdoor and indoor units  Homeowner and renewables consultant - Dave Meseck says the property is “energy-neutral” during the summer months, with generated and stored energy offsetting electricity consumed from the grid.  One of the ESTIA systems serves around 90m2 of underfloor heating in the open-plan kitchen and dining area, while the other provides hot water and heats the upstairs radiators and towel rails from a supplied 300-liter cylinder. The ESTIA indoor units include a 3kW backup heater to ensure continuity of operation at extremely low ambient air temperatures. Toshiba Mini SMMSe VRF The 5hp system provides heating and cooling for the room above a triple garage via a 5.6kW four-way cassette A 6hp (15.5kW) Toshiba Mini SMMSe VRF is connected to ducted units in the bedrooms and two of the newly designed compact 3.6kW one-way cassettes downstairs, which have been designed to fit between the joists on a traditional home. The second 5hp (14kW) system provides heating and cooling for the room above a triple garage via a 5.6kW Toshiba four-way cassette, while the garage space below, where a spa area is planned, is served by two wall-mounted units. Efficiency “The whole system has been running since December last year and the way it has transformed the house is fantastic,’’ said David Meseck, a Specialist in renewables, sustainability, and the circular economy. He adds, “It was important to get everything right; the project was sized correctly and the equipment installed properly." Cost-effective all-electric heating system As well as helping to future-proof our home and reducing energy costs, the changes have added value to the property" David Meseck continues, "Together with the other measures, we now have an efficient, all-electric heating system with the added benefit of cooling in summer, and the annual servicing cost is comparable to boiler cover. As well as helping to future-proof our home and reducing energy costs, the changes have added value to the property." He adds, "I would urge anyone looking to invest in their home to look at the bigger picture and make it an environmentally-responsible investment.’’ Four models are available in the ESTIA range, spanning capacities from 4-11kW, all with reversible operation to provide cooling as well as heating if required. twin rotary compressor At the heart of ESTIA is Toshiba's award-winning twin rotary compressor, which contributes to the system's outstanding energy efficiency rating of A+++. The compressor enables the heat pump to continue supplying hot water even during exceptionally cold weather, delivering water at 62 degrees C when outdoor temperatures fall to -25 degrees C. ESTIA can also continue producing DHW at exceptionally high outdoor temperatures (43 degrees C) to deliver maximum running cost savings. all-in-one floor-standing hydro-module Toshiba offers a space-saving wall-mounted hydro-module for boiler replacement projects such as this, with a choice of 150l, 200l, or 300l capacity external cylinders. For new-build projects, an all-in-one floor-standing hydro-module with an integrated 210l tank provides a compact solution for both heating and DHW storage. Easy-to-install ESTIA provides a superb solution for homeowners or small businesses looking to replace less efficient systems" “ESTIA provides a superb solution for homeowners or small businesses looking to replace less efficient systems," said David McSherry, David McSherry, Head of Sales for Toshiba Air Conditioning UK, Carrier Global Comfort Solutions Europe. “It is quick and easy to install on-site, and Toshiba’s renowned reliability means a long working life, backed by our excellent warranty.” Performance, warranty, and reliability Installer - Peter Franks, Managing Director of Mansfield-based Woburn Mechanical Services Ltd, added, “This is by some distance the biggest domestic project we have undertaken. The customer knew exactly what he wanted and now has a comprehensive heating and cooling system." Peter Franks concludes, "The Toshiba equipment is excellent in terms of performance and reliability and comes with a seven-year warranty. We wouldn’t be fitting it if we didn’t have complete confidence in it.’’

ECO Steam and Heating ordered a 10MW Electrode Steam Boiler for their Dutch customer - MARS WRIGLEY in Veghel. This is the largest chocolate bar factory in the world that produces brands, such as Twix, Mars, and Bounty. PARAT Halvorsen AS will deliver the 10MW High Voltage Electrode Steam Boiler that will reduce emissions and bring flexibility to their boiler house.  Power to Heat system The Power to Heat system will be delivered with a 10kV Connection, Design Temperature of 204°C, Operating Pressure of 13.5 barg, Circulation Pumps, and Feedwater Pumps. ECO Steam and Heating will take care of the Project Management, including lift-in and installation of the complete boiler system, while PARAT will do the start-up and training of personnel.

Paragon House – an 11 story teaching block at the University of West London (UWL), has recently replaced its gas boiler heating system with a ground-breaking first for Europe and the UK, by Finn Geotherm installing three x 210kW Panasonic air-to-water heat pumps with a bespoke cascading thermostatic control system to heat the entire building. The University of West London were looking to improve the energy performance of the building in a more sustainable way, reducing their carbon footprint and energy consumption, with the help of a Salix funded government grant (the UK Government’s Public Sector Decarbonization Scheme (PSDS) and the Low Carbon Skills Fund (LCSF)). Paragon House installs Panasonic heat pump system UWL appointed Ameresco as the main energy improvement contractor for the project UWL appointed Ameresco as the main energy improvement contractor for the project with Finn Geotherm as the contractor who specified and installed the 3 x 210kW Panasonic heat pump system, along with a bespoke cascade thermostatic control system that links with the building’s BMS. Paragon House is situated in a prestigious London location adjacent to the M4 with a mix of classroom and lecture theatres across 11 floors. Sustainable energy efficient system The main challenge for the project was that the University ideally wanted minimum internal disruption and an energy efficient system that could link and work with their existing pipework, radiators, cassettes and fan coils. A further challenge was lifting the three large 210kW units, each 6 square meters and weighing just over two tons onto the roof of the 11 story building. Detailed structural surveys were carried out to ensure the weight and distribution of the units at roof level would work effectively and safely. Panasonic air source heat pumps Guy Ransom, the Commercial Director at Finn Geotherm commented, “Originally it was thought that the best solution to meet the heat load for the entire building would be a ground source heat pump system but on initial surveys and inspections, it became apparent that the drilling of bore holes would be impossible given the ground space available and the proximity of the building to the M4 motorway and other busy London road networks.” Guy Ransom adds, “We have worked with Panasonic air source heat pumps over a number of years now and have developed a trusted two-way partnership with the team and where Panasonic has become our manufacturer of choice – we respect the quality of the units – they do what they say they can do.” Panasonic 210kW heat pump units installed Panasonic 210kW heat pump units installed at Paragon House were the first of their kind in the UK The Panasonic 210kW heat pump units installed at Paragon House were the first of their kind in the UK and Europe to be installed – the units offer outstanding efficiency with extremely high SEER and SCOP figures, can operate in temperatures as lows a -17 degrees Celsius in heating mode, are quiet in operation, offer a customizable design with capacities from 20k to 210kW, and can be integrated into a BMS control system. The team at Finn Geotherm worked with Panasonic’s European R&D and UK teams to obtain test data to support the specification of the units. The two teams liaised over a number of weeks to verify the data, ensuring the required range of output and input temperatures would work effectively on the bespoke thermostatic cascading control system. Maximize the use of the heat pump The aim was to maximize the use of the heat pump use when a back-up system was insisted on by the client for the Paragon House project. Guy Ransom stated, “We worked closely with the wider team at Panasonic and carefully laser measured and assessed the heat loss for each area of the building to ensure that the units would be able to distribute a similar level of comfort to the existing gas boiler system.” He adds, “The Panasonic system now installed at Paragon House was the first of its kind in Europe – this ground-breaking project pushes the envelope for similar large renovation projects in the future that are looking to decarbonize their heating systems - the customer is very happy with the end result.” Panasonic system lowers the carbon footprint The Panasonic system has lowered the carbon footprint of the property The Panasonic system has lowered the carbon footprint of the property and is highly energy efficient to run with little impact on the interior pipework and space within the building. The units are located on the roof to ensure they are discreet, quiet and unobtrusive to the surrounding area, having very little impact on the day to day running of the building during installation. A construction of support spreader beams and plates was designed to distribute the load within the tolerance of the roof area. University of West London pleased with the results Claire Willits, the Director of Property Services at the University of West London (UWL) said, “The University of West London has been very pleased with the results of the project and having now been through our first winter running on the new systems we can safely say the technology works!” Claire Willits adds, “This project has made a significant contribution in our carbon reduction journey and has given us reassurance that change for the better of the environment can also be cost-effective and deliver a practical operational solution.” Exceptional energy savings It is estimated that Paragon House will receive energy savings in the region of 1,058,000 kWh per year It is estimated that Paragon House will receive energy savings in the region of 1,058,000 kWh per year. Considering the other two Panasonic installs at UWL, the total amount of energy saving is expected to be in excess of 500 tons of CO2 per annum. The above project was recently announced as the award winner of the National Renewable Heat Project of the Year at the Energy Efficiency Awards 2022. Seamless design and installation Harvey Loyal, Specification Sales London for Panasonic, stated “The control of the 210kW units were new to the market when Finn Geotherm came to us with the project – we worked with the wider Panasonic technical team and Finn Geotherm to provide a seamless design and installation.” Harvey Loyal adds, “As this was a European first and so for peace of mind, the original boilers were kept as a back-up should the outside temperatures reach -5 degree or lower. 12 months following the installation, Paragon House has confirmed the boiler system has not once been utilized and the heating produced from the Panasonic Air-to-Water system fully meets the heating requirements of the building.” Since the initial installation of Panasonic air source heat pumps at Paragon House, Finn Geotherm has installed similar Panasonic systems in several other similar buildings across UWL, as well as many other large projects in and around the London area.

In line with the UK’s Net-Zero targets, local governments are transitioning communities to a greener future. Kemsley Community Centre, based in Sittingbourne, Kent, United Kingdom (UK) were looking for a more energy efficient and sustainable system to heat and cool their large and multiple areas of the community center, in order to replace a 1960’s oil-fired system. Phoenix ACR, specialists in AC and refrigeration, specified a Panasonic R32 split system with 4 x 20kW PACi outdoor units and 11 of the Panasonic PACi NX Elite range of wall mounted indoor units with nanoe X. Panasonic R32 split system installed The new system needed to meet the needs of the entire community center, covering the main hall, bar area and reception area. Each section required units suited to the individual area, which could seamlessly combine and function under a single control system. The Panasonic PACi NX Elite range was specified by installer, Nathan Bell, the Managing Director of Phoenix ACR, who explains “We have worked with Panasonic a lot in the past, so we knew its range was the best to deliver the efficiency, reliability and value for money that was key to this installation. The energy-saving design and high efficiency makes the Panasonic units ideal for this project.” Panasonic PACi NX Elite wall mounted indoor units The PACi NX Elite range allows a great amount of flexibility in design and install The PACi NX Elite range allows a great amount of flexibility in design and install, which was crucial to ensuring we could adapt to the needs of each room, providing the perfect solution for the customer. The addition of nanoe X technology, which inhibits viruses and bacteria, was a key benefit of the Panasonic units, to help provide a better indoor environment for the community center staff and its users in a post-pandemic world.” Featuring nanoe X technology In the main hall and bar area, 11 Panasonic PACi NX Elite wall-mounted units with nanoe X technology were installed. These are especially beneficial for high ceiling areas, such as found in the community center. The reception area has two PACi ceiling suspended units, with the slim design making them more discreet for the smaller room, along with being one of the quietest units currently on the market. Facilities Trustee of Kemsley Community Centre, David Grawler, said “It is so important that we provide a sustainable future for our community. Phoenix ACR recommended this solution, and we are very happy with how it meets our energy efficiency needs. With our old system, if we hired out a single room, we would end up having to heat the entire building.” David Grawler adds, “The new Panasonic system allows us to control all units as one for the entire building, but also enables us isolate the individual spaces, adding a new way for us to function in a more energy efficient way, without having to compromise on comfort.” PACi NX Standard and PACi NX Elite ranges The PACi NX Standard and PACi NX Elite ranges provide high quality heating and cooling The PACi NX Standard and PACi NX Elite ranges provide high quality heating and cooling, boasting top class SEER ratings of A++ and SCOP ratings of A+ and A++ at 10kW respectively. Both provide slim, lightweight and compact designs. The PACi Elite offers greater design flexibility, making it adaptable to various building types and sizes, key to delivering the perfect solution across larger projects. The design allows for high quality under a wide range of conditions, with cooling possible in temperatures as lows as -15 degrees or as high as 46 degrees, and heating in temperatures as low as -20 degrees. Kemsley Community Centre Kemsley Community Centre has a touch screen centralized controller installed behind the bar, allowing the management of the entire system from a single point. Additionally, the system utilizes WIFI adaptors which connect the units to the Panasonic comfort cloud App, allowing for remote management and monitoring of the multiple air conditioning units required for this project. The units came with nanoe X technology as standard, a unique and proven technology to help improve air hygiene by preventing transmission of airborne pathogens, to create a safer and healthier indoor environment. Nanoe X works independently from the heating and cooling operation when the unit is in fan mode, improving protection 24 hours a day, 7 days a week. Panasonic units – a great addition to the community center David Gawler concludes, “The Panasonic units have proven to be a great addition to the community center, they helped us cope during the summer heat wave of 2022, and heating capabilities this winter. It is great that we can still provide comfort in the center to all those who use it whilst also taking a big step to a greener future.”