Flammability

American Plant Maintenance (APM Steam), a pioneering provider of steam systems maintenance services, highlights its innovative HVAC insulation services, designed to provide significant energy savings and enhanced operational efficiency for healthcare facilities, colleges, universities, pharmaceutical companies, biopharmaceutical companies, food manufacturers, and government facilities. The Heat Loss Study offered by APM Steam includes a detailed site walk and thorough review of hot water, steam, and chilled water plants and distribution systems. Hot water and steam systems An engineering team delivers a full review of findings, offering actionable recommendations to repair faulty insulation or add insulation where energy losses are significant. APM Steam also manages utility incentives, reducing project costs whenever applicable Clients receive a summary report with a detailed scope of work and pricing. APM Steam also manages utility incentives, reducing project costs whenever applicable. APM Steam provides specialized insulation for steam traps, valves, pipes, and other components throughout hot water and steam systems. This service ensures a lasting payback, positively impacting customers' bottom lines by significantly reducing energy losses. Cold-water insulation The specialized cold-water insulation offered by APM Steam retains temperatures, lowers energy losses, and minimizes pipe sweating, ensuring efficient system operation and reduced maintenance costs. In addition, APM Steam handles utility incentive applications from start to finish, ensuring maximum funding from local utility companies, further reducing the cost of insulation projects. Insulation jackets The insulation jackets provided are high quality, removable, and custom-made in the USA. Typical payback without energy efficiency incentives is only 11 months, helping to reduce operating budgets by eliminating energy losses.

Marley Engineered Products, a pioneering manufacturer of high-performance heating and ventilation solutions, announces the release of the latest generation of Explosion-Proof Unit Heaters, designed under the esteemed QMark and Berko brands. Featuring rugged construction and high-quality cold rolled steel powder-coated cabinets to ensure long-lasting performance, the heaters are built to endure the harshest of environments, including areas with a potential for explosion or fire due to the presence of flammable gases, vapors, pulverized dust, or ignitable fibers in the atmosphere. GUX and RUX Series GUX Series from QMark and the RUX Series from Berko are built to meet stringent safety standards The GUX Series from QMark and the RUX Series from Berko are built to meet stringent safety standards for hazardous locations, including Class I, Divisions 1 and 2, Groups C & D, and Class II, Divisions 1 and 2, Groups E, F & G. These units are also compliant with Class I, Zones 1 and 2, Group II, making them ideal for a wide range of industrial applications such as chemical plants, oil refineries and rigs, grain elevators, and more.  Explosion-Proof Unit Heaters With an understanding of the damaging effects of corrosive environments, these heaters are equipped with advanced corrosion-resistant coatings and materials, ensuring durability and longevity in harsh conditions. Optional 316 stainless steel and Heresite® coating offer additional protection in corrosive settings.  The Explosion-Proof Unit Heaters are designed to operate reliably and efficiently across a range of temperatures. The T3C temperature rating of 320°F provides additional reliability and safety, ensuring optimal performance in applications from freezing cold to scorching heat. airflow capabilities The IP55 motor and type 4 outdoor-rated enclosure further ensure reliability in wet locations Equipped with automatic and manual reset overtemperature cutouts, as well as a low 70 PSIG relief valve setting, the heaters provide an added layer of safety by preventing overheating and controlling pressure release. The explosion-proof unit heaters feature industrial-grade, corrosion-resistant cabinets and louvers, making them suitable for various installation scenarios.  The IP55 motor and type 4 outdoor-rated enclosure further ensure reliability in wet locations. With airflow capabilities ranging from 550 to 3850 CFM, these heaters efficiently distribute warm air across large areas, providing consistent and comfortable heating. Highest safety standards "We are thrilled to introduce these advanced explosion-proof unit heaters to the market," said Andrew Martin, Manager of Product Management of Marley Engineered Products. "Our design team has used their decades of experience and created products that not only meet the highest safety standards but also deliver exceptional performance and durability in the most challenging environments.” Specific requirements  The new Explosion-Proof Unit Heaters are perfect for use in aircraft hangars and service areas The design team engineered these heaters to offer versatile solutions, tailored to projects’ specific requirements in those hard-to-reach areas. The new Explosion-Proof Unit Heaters are perfect for use in aircraft hangars and service areas, chemical storage and handling areas, coal preparation plants, compressor stations, paint storage areas and spray booths, and sewage pump stations and treatment plants. Importance of safety "We understand the critical importance of safety and reliability in hazardous locations, and our new heaters are built to exceed expectations," added Martin. "With these units, our customers can be confident in their ability to maintain a reliably comfortable environment, no matter how harsh the conditions.”

Johnson Controls, the global pioneer for smart, healthy, and sustainable buildings, announced the launch of the new PENN® System 550, a modular electronic control solution that provides temperature, humidity, and/or pressure control.  The user-friendly and intuitive System 550 is the first of its kind to include A2L refrigerant leak sensing and mitigation functionality and optional two-way cloud connectivity, providing a solution for HVAC contractors and building managers for low global warming potential (GWP) A2L refrigerant regulations ahead of January 1, 2025, when some take effect. A2L refrigerant regulation “The revolutionary System 550 was engineered to meet and exceed the evolving needs of the HVAC-R industry,” said Keith Gifford, Global Product Manager, Johnson Controls. “Transitioning to low-GWP refrigerants can be challenging but System 550 is a plug-and-play solution that enables equipment manufacturers to control space temperature, humidity, and/or system pressures while complying with the latest A2L refrigerant leak detection and mitigation regulations.” HVAC-R system performance PENN A2L refrigerant sensors have the fastest response time on the market PENN A2L refrigerant sensors have the fastest response time on the market and feature speed of sound technology to quickly sense refrigerant leaks and ensure the safety of occupants while minimizing system downtime and product loss. Authorized users can easily monitor HVAC-R system performance and review and change System 550 menu settings by subscribing to the Controls System Cloud.  A2L refrigerant sensor When a refrigerant leak is detected, the technician is notified of exactly which A2L refrigerant sensor detected the leak through Modbus communications, further simplifying and expediting maintenance and repairs. System 550 is designed so that in the future, sensors for detecting A3 refrigerant leaks (e.g., R290, Propane) can be used, preparing for the future as low-GWP refrigerant regulations continue to evolve.  C550CCN control module Modular electronic control system allows up to six A2L sensors to be connected to a C550CCN control module The modular electronic control system allows up to six A2L sensors to be connected to a C550CCN control module, and up to 10 relay and/or analog outputs can be added through plug-in expansion modules without the need for field wiring, allowing for versatility and customization. System 550 supports hundreds of applications with the most popular being heating and/or cooling control, staged boiler or chiller control, boiler and chiller loop water temperature reset control, modulated and staged temperature damper actuator control, humidification and dehumidification control and combination temperature and humidity control.  System 550 control modules System 550 control modules feature a full-character display and rotary encoder dial to simplify menu navigation and allow for customized sensor and output naming.   The rotary dial also features a quick-access feature that allows service technicians to easily change set-points. Two methods are available for HVAC-R equipment manufacturers to upload and/or save C550 configuration files, simplifying control set-up and commissioning. Controls System Cloud Controls System Cloud can be configured to display all System 550 devices by location or enterprise With Controls System Cloud, authorized users can easily monitor system performance and receive SMS text and email alerts through cloud-based connectivity. This is especially important for A2L HVAC-R systems where service technicians want to know in real time if there is a refrigerant leak or A2L sensor failure.  Controls System Cloud can be configured to display all System 550 devices by location or enterprise, allowing users to quickly determine if the equipment is operating correctly.  PENN three-year warranty Service companies can utilize data available through the cloud to determine if a technician needs to be dispatched to diagnose and service equipment. System 550 is backed by the PENN three-year warranty and is supported by Johnson Controls expansive network of United States, Canada, and Mexico-based authorized wholesalers that provide technical support and local access to replacement controls and accessories.

On February 20 2024, the new F-gas (UE) Regulation 2024/573 was published in the Official Journal of the European Union, coming into effect on March 11, 2024. The new F-gas Regulation limits the market introduction and export of fluorinated gases and equipment containing such gases. Fluorinated gases (including hydrofluorocarbons or HFCs) are greenhouse gases with a high global warming potential (GWP), used in common appliances such as refrigerators, chillers, air conditioners, and heat pumps. The new regulation calls for a gradual reduction in HFC consumption between 2024 and 2049, with a total ban on their use starting in 2050. Air conditioning equipment Maintenance - The F-gas UE Regulation 2024/573 does not introduce any maintenance or spare parts bans for units placed on the market before the prohibition dates defined in Annex IV. Exemption - These are provided in cases where alternatives are not available or cannot be used for technical or safety reasons, or if the use of such alternatives entails disproportionate costs. Export ban - From March 12, 2025, the export of fixed refrigeration and air conditioning equipment and heat pumps listed in Annex IV, containing fluorinated greenhouse gases with a GWP greater than or equal to 1000, is prohibited. High condensation temperatures In response to these bans, STULZ has recently launched its low-GWP solutions: Air conditioners - STULZ air conditioners, currently available with traditional refrigerants: R407C (GWP = 1744), R134a (GWP = 1430), R410A (GWP = 2088), have been revised with low-GWP solutions. In particular, the non-flammable (A1), non-toxic R513a gas, with a GWP of 631, significantly lower than traditional ones, has been introduced. This refrigerant is now available for all ranges of air conditioners for IT applications This refrigerant is now available for all ranges of air conditioners for IT applications (Monobloc and Split) and for Data Centers (Close control). In addition to the low GWP advantage, this refrigerant allows for high condensation temperatures making these units the perfect solution for particularly hot climates or particularly “complicated” installations. Furthermore, with this refrigerant, STULZ is already prepared to meet the part of the market associated with export (GWP ≤ 1000). The R513a solution is clearly a medium/long-term solution, at least for split systems where the GWP limit of 750 is possible until 2033. Slightly flammable gases For the immediate future: 2027, STULZ is studying and testing A2L slightly flammable gases to be ready for the next deadlines. A2L in fact, is the only possibility today to have GWP<150. The first A2L solution, already available in the STULZ product portfolio, is represented by water-cooled close control units with refrigerant R454C (GWP = 148). In these units, the low refrigerant charge combined with leak detection and gas disposal systems fully meets the stringent requirements imposed by the F-gas Regulation. Multi-scroll compressors Chillers - In the field of chillers, STULZ also offers traditional refrigerants as well as low-GWP solutions to minimize environmental impact and comply with the limits imposed by the F-gas Regulation. The same R513a used in air conditioners is now available in chillers with screw compressors. STULZ climate chambers are already equipped to test A2L and A3 Along with this solution, STULZ can already offer a fully compliant F-gas solution with the (A2L) refrigerant R1234ze (GWP = 1). STULZ climate chambers are already equipped to test A2L and A3. Medium-sized chillers with multi-scroll compressors, available as standard with R410A refrigerant, are now also available with R454B (GWP = 466), (A2L). Reducing global warming For small chillers with scroll/rotary compressors, currently available with R410A and R134a refrigerants, for which the constraint is 2027 and 2032 with respectively GWP < 150 and natural refrigerants, STULZ is working to offer low-GWP solutions compliant with the F-gas Regulation shortly. Conclusion - The new F-gas Regulation represents a significant challenge for the industrial air conditioning and refrigeration world. STULZ, with its low-GWP and A2L solutions for both air conditioners and chillers, is embracing this challenge to actively participate in reducing global warming and greenhouse gas emissions.

At Chillventa 2024, to be held from 8 to 10 October in Nuremberg, CAREL will be presenting its latest technologies developed for the HVAC sector, with a strong focus on energy efficiency and natural refrigerants to meet the industry’s regulatory requirements and environmental goals. The coming into force of the new F-GAS regulations, together with European and global decarbonization targets, make the use of low GWP refrigerants such as propane essential. industrial heat pumps CAREL offers complete solutions for residential and industrial heat pumps In response to these challenges, CAREL offers complete solutions for residential and industrial heat pumps, with components designed to optimize the use of these refrigerants, thus improving energy efficiency and reducing environmental impact. One of CAREL’s main strengths is its ability to develop advanced “A3 ready” solutions, which guarantee both safety and high performance even in applications that use flammable refrigerants, simplifying both production and certification of the units for manufacturers. High precision and reliability The new products to be presented at Chillventa include the three-phase inverter with an integrated active filter, which improves the performance of variable-speed compressors, as well as the hermetic electronic expansion valve, designed to manage refrigerant temperatures up to 100°C.  This technology guarantees high precision and reliability in all operating conditions, responding to the latest, stricter EMC regulations. Software development tool for managing heat pumps STone smart control functions for residential hydronic circuits while helping to optimize energy Another focal point of CAREL’s offering is the STone development tool, the perfect solution for the latest software development needs, with features that combine quality and efficiency.  The applications covered include heat pumps: STone provides smart control functions for residential hydronic circuits while helping to optimize the energy performance of the components. STone Simula and STone Virtual Loop Moreover, STone Simula and STone Virtual Loop can be used to simulate unit operation in a virtual environment, allowing different HVAC/R unit configurations to be tested in advance. This reduces the risk of errors and makes development and implementation much faster, facilitating the adoption of the latest technologies by the market. Residential and commercial ventilation In the field of ventilation, CAREL offers innovative solutions to improve indoor air quality In the field of ventilation, CAREL offers innovative solutions to improve indoor air quality, while at the same time ensuring low energy consumption. Heat recovery systems are designed to optimize energy balance and improve sustainability. The main solutions to be highlighted at the show include µAria, for the management of residential and commercial ventilation.  This allows complete control using the CAREL Applica app, accessible via NFC and Bluetooth®. For more complex applications, k.AIR provides modular solutions for the control of air handling units, with advanced pressurization management and HEPA filter monitoring functions to ensure air quality in critical environments. High-efficiency humidification solutions Regarding humidification, CAREL’s HygroMatik product line - a group company since 2018 - includes the FlexLine range of steam humidifiers designed to guarantee long life and limited maintenance in commercial and industrial applications. With both adiabatic and isothermal humidification solutions, CAREL provides a complete range of humidity control solutions, in compliance with European hygiene standards, for all sectors that require air temperature-humidity without compromising on environmental sustainability. Technology on stage at the CAREL stand Led by CAREL experts, the panels include question-and-answer sessions to clarify any doubts During the event, CAREL will also host a series of “Technology on Stage” panels, during which visitors will be able to delve deeper into the digital and software aspects of the solutions exhibited. These meetings include a presentation of the STone software development environment with advanced new features, providing a detailed overview of how these technologies can simplify the management and optimization of HVAC systems, reducing development times and improving operational efficiency. Led by CAREL experts, the panels will also include question-and-answer sessions to clarify any doubts. Efficiency of HVAC systems “Our solutions have been developed to respond to the most urgent energy challenges. With advanced technologies that integrate the control of heat pumps, ventilation and humidification, we can improve the efficiency of HVAC systems and reduce energy consumption, making a substantial contribution to meeting sustainability objectives,” commented Andrea Pagan, CAREL Regional Marketing Manager HVAC – EMEA. “We strongly believe that digital innovation, combined with the adoption of natural refrigerants, is the key to pioneering the HVAC industry into a more sustainable future.”

Contractors know that hurricanes and severe storms bring more than just wind and rain. They also carry debris, salt, and other corrosive elements that can compromise the performance and lifespan of HVAC systems. For contractors committed to delivering top-quality service and ensuring system longevity, hurricane season is the vital time to promote care and maintenance of HVAC systems. regular maintenance program Even hurricanes that leave minimal structural damage can cause problems behind the scenes. The increase of corrosive elements in the air carried at high wind speeds can cause damage beyond normal wear and tear to HVAC systems, even those prepped for highly corrosive environments. A regular maintenance program that includes GulfClean® Coil Cleaner and Salt Reducer products can help reduce corrosion potential, keep systems running efficiently, and delay the need for costly equipment replacements. cleaning steps The cleaning steps are simple and easy to follow. No special equipment or personal protective equipment (PPE) is required when using GulfClean® cleaning products. Step 1: GulfClean® Coil Cleaner – Deep Cleaning for Lasting Efficiency The deep-cleaning foam penetrates stubborn dirt, ensuring coils remain free from harmful buildup GulfClean® Coil Cleaner is specifically formulated to thoroughly clean HVAC/R systems. GulfClean® is specifically made for removing accumulated dirt and soil deposits from coils, cabinetry, and components. With its non-acidic, non-caustic, biodegradable formula, this cleaner provides a powerful and environmentally friendly solution. The deep-cleaning foam penetrates stubborn dirt, ensuring coils remain free from harmful buildup, which is essential for maintaining system efficiency and reducing energy costs. Step 2: Salt Reducer – Protecting Against Corrosive Elements GulfClean® Salt Reducer is designed for use after the initial cleaning. This concentrated liquid solution is designed to dissolve and remove soluble salts, including chlorides and sulfates, which are both highly corrosive elements. Like the Coil Cleaner, the Salt Reducer is biodegradable and non-hazardous. Additionally, it has no VOCs, is non-flammable, and it does not strip the HVAC/R system of previously applied coatings. Using the Salt Reducer in conjunction with the Coil Cleaner can help extend the life of corrosion-resistant coatings and ensure the HVAC systems remain reliable for years to come. Step 3: Restore and Repair with Performance Repair Aerosol™ (PRA™) After cleaning the system with GulfClean® products, it’s vital to inspect the coils for any chips, scratches, orabrasions in the coating. The next step in the maintenance program should be applying Performance RepairAerosol™ (PRA™) to restore and protect the integrity of the coating. PRA™ is available in two formulations: PRA™ Performance Repair Aerosol – ElectroFin® E-coat for factory-applied ElectroFin® E-coat. PRA™ Performance Repair Aerosol – Insitu® ES2 Spray Applied Corrosion Coating for coils coated with Insitu ES2. UV protection and enhanced durability These aerosols help maintain coating integrity by protecting against moisture, salt, vibrations These aerosols help maintain coating integrity by protecting against moisture, salt, vibrations, temperature fluctuations, and harsh chemicals.  Applying PRA™ after cleaning not only repairs damaged areas, but also provides UV protection and enhanced durability, ensuring the HVAC/R unit continues to operate efficiently. The Best Defense Against Corrosion Begins at Installation For the best protection, it’s advisable to coat coils either upon or just prior to installation. This proactive stepensures that the coil is shielded from the moment it’s in use. If the system has already been installed without acoating, don’t worry, contractors can still prep the surface and apply Insitu® Spray Applied Coatings to the coils and cabinets for a crucial layer of defense. valid warranty for coils GulfClean® Coil Cleaner and Salt Reducer are recommended for cleaning all coated coils as part of a preventative maintenance program and is required to maintain a valid warranty for coils that were coated with either ElectroFin® E-coat or Insitu® Spray Applied Corrosion Coating family of products. A preventative maintenance program that includes using the coil cleaner and salt reducer will help reduce corrosion potential, reduce energy usage, and help extend the equipment replacement timeline by keeping the unitrunning efficiently. Preventative Maintenance for Maximum Benefits GulfClean® Coil Cleaner and Salt Reducer are designed with contractors in mind GulfClean® Coil Cleaner and Salt Reducer are designed with contractors in mind. Easy to use, requiring nospecial equipment or PPE, these products offer a straightforward solution for maintaining HVAC systems in topcondition. Non-hazardous, non-flammable, and environmentally friendly, GulfClean® products are the reliablechoice for ensuring the installations stand the test of time. In the wake of a hurricane, don’t just clean, protect. Ensuring HVAC installations perform at their best Equip the team with GulfClean® Coil Cleaner, SaltReducer, and Performance Repair Aerosol™ to ensure the HVAC installations perform at their best, no matter what nature throws their way. "It’s important to let clients know the exact benefits they get from what may seem like “extra” maintenance to the layperson," says Kristin Kennedy, Business Development Manager, Modine, adding "Let clients know that GulfClean®Coil Cleaner and Salt Reducer are the essential tools for protecting HVAC/R systems against the harshestconditions."

Until a couple of years ago, most of the talk about heat pumps occurred around this time of year, when more than half the planet prepares for an autumn cooldown. These discussions were typically limited to regions that only experienced moderate winters. But as anyone who has recently perused an HVACR trade magazine or website—or participated in an industry webinar, event, or social media conversation—can tell you, the topic of heat pumps is virtually unavoidable. Not only do heat pump discussions now occur year-round, but they’ve also ascended to consistent headline status and transcended the traditional boundaries of moderate climates.  The decarbonization megatrend One might say heat pumps have taken their place on the global stage. If you’re asking why this has happened, the answer requires just three words: the decarbonization megatrend. However, for industry professionals looking to grow their businesses, it’s helpful to gain a deeper understanding of heat pumps—how they work, ways they are currently meeting HVACR needs, and where the technology is headed for next-generation applications. Through this understanding, members of the industry can better forecast customer needs as well as identify opportunities for expanding in both current markets and, potentially, new ones. How heat pumps work—don’t let the name fool you The heat released as the refrigerant condenses is then transferred to interior spaces What heat pumps do and, more specifically, how they do it provides the key as to why they are now being considered a “hero” of decarbonization. The term can be misleading, because “heat pumps” do not generate heat. Because of this, heat pumps are being more widely embraced as the lower-carbon-emission alternative to combustion-based heating technology that uses, for example, fossil fuels.  Instead of creating heat, heat pumps extract heat energy from where it’s not needed and move it to where it is needed. When a heat pump is in heating mode, its refrigerant evaporates as it absorbs heat from the outside. The heat released as the refrigerant condenses is then transferred to interior spaces. In warmer weather, a heat pump kicks into cooling mode and the process is reversed, as heat is extracted inside and released outside. This non-combustion process of moving heat from one place to another provides several potential benefits to society: Heat pumps support the megatrend toward decarbonization. They replace fossil-fuel heating with high-efficiency technology. They can be paired with lower-global-warming-potential (GWP) A2L refrigerants—such as R-454B and R-32—to further increase environmental benefits, while offering similar performance to the legacy R-410A. They offer the ability to tap into alternative energy sources, such as industrial waste heat as well as heat sourced from the air (ambient), ground (geothermal), or lakes/ponds (water). Meeting today’s needs—these aren’t your grandfather’s heat pumps Heat pump technology has been commercially available and in use since the 1950s. Early versions of heat pumps were essentially reversible air conditioning units, and most used traditional refrigerants—like R-22 and, more recently, R-410A. These units performed well and operated safely using lower-toxicity, nonflammable (A1) refrigerants. However, they were known to sometimes struggle at lower ambient temperatures. As often happens in the world of science and technology, challenges drive the search for solutions. Today, we’re seeing innovations that result in efficient, effective cold-climate heat pumps that optimize various components, such as compressors, heat exchangers, expansion valves, and their controls. Thanks to these innovations and others, the U.S. and other countries are experiencing broader heat pump adoption and, in turn, supporting progress toward decarbonization.  Heat pump technology has been commercially available. Increasing heat pump accessibility and viability in more places and spaces is also critical to the HVACR industry’s commitments to the environment—and its need to heed regulations advancing the transition to systems reducing climate impact. Emerging systems use mildly flammable (A2L) refrigerants. They are similar in design to legacy systems and include modifications to mitigate risks associated with the change to A2Ls. Where things are headed—heat pump technology is just getting started Even with the significant advances we’ve seen in colder-climate heat pumps, there is still untapped potential in terms of what the technology can achieve. We can expect to see continued innovation as end-user needs and environmental priorities continue to evolve. Some foreseeable growth areas for heat pumps include: Traditional applications—that is, moderate climates Expansion into nontraditional climates—heating in very cold climates and cooling in hotter regions Domestic water heating, replacing fossil-fuel systems Leveraging a variety of heat sources—geothermal, air-sourced, and water-sourced Harnessing waste heat generated by energy-intensive industrial processes Use of lower-GWP A2L refrigerants System optimization will also drive greater use of lower-GWP A2L refrigerants, such as R-454B Supporting these growth areas will be innovations that optimize high-performance, high-efficiency delivery of extracted heat, using a combination of traditional and new split-ducted, ductless/mini-split, and mono-block technologies. System optimization will also drive greater use of lower-GWP A2L refrigerants, such as R-454B, while limiting the use of highly flammable refrigerants such as R-290. Refrigerant selection will also play an increasingly important role and may offer additional opportunities for application-specific technology. As heat pump applications expand, we can expect to see greater focus on selecting the optimum refrigerant to use as the working fluid. Criteria will weigh system design, operating conditions, and other priorities against key refrigerant properties: Physical—boiling point, vapor pressure, density, and material compatibility Thermodynamic—cooling/heat capacity, energy efficiency, pressure-enthalpy (PH) curves Environmental—ozone depletion potential (ODP) and global warming potential (GWP) Safety and health—flammability and toxicity Conclusion: There’s strong and ample reason to “stay pumped” Over the past several years, members of the HVACR industry have enthusiastically embraced new heat pump solutions. Evolving heat pump technology and expanding applications will continue as the industry progresses along the path of more energy-efficient, lower-GWP, and more sustainable new-generation and next-generation heating and cooling. This, coupled engineering and science that leverages untapped heat pump potential, will mean more opportunities for HVACR contractors to deliver new options to the markets they serve. With a strong understanding of their customers’ individual heating and cooling needs, climate challenges, and sustainability goals, contractors can confidently select the best heat-pump refrigerant solution.

By now, the HVAC industry is well versed in, and operating successfully with, various HFC refrigerant production and consumption reduction schedules put forth by regulatory bodies. Under the EPA American Innovation and Manufacturing (AIM) Act, for example, the U.S. experienced a significant reduction (another 30%) in January 2024, advancing the goal of an 85% HFC phasedown from historic baseline levels by 2036. And the EU is working toward its stated objective of an HFC phaseout by 2050. technology transition rules In addition, technology transition rules are at work to limit the use of higher global warming potential (GWP) refrigerants in specific applications, ranging from commercial air conditioning to residential heat pumps. Consequently, with each passing year, the industry can expect HFC availability to feel increasingly “tighter.”  additional requirements Once the EPA’s proposed rules become final rules, more details will be available to guide the industry In addition, by the end of summer 2024, it’s expected that the U.S. EPA’s proposed rule, “Phasedown of Hydrofluorocarbons: Management of Certain Hydrofluorocarbons and Substitutes Under Subsection (h) of the American Innovation and Manufacturing Act of 2020” will be finalized—subjecting the HVACR industry to additional requirements. Once the EPA’s proposed rules become final rules, more details will be available to guide the industry on steps they need to take in terms of compliance.  takeaway from HFC phasedown The main takeaway from the progress of the HFC phasedown is that businesses at every level of the HVAC industry must employ a strong refrigerant management strategy. Several of the “Eight Rs” below represent best practices that many industry members already follow. By structuring your strategy around these measures, you can align your business with regulations and ensure you have the resources necessary to continue servicing equipment with legacy refrigerants as well as to successfully introduce A2L solutions to customers.  Eight Rs of Refrigerant Management  Regulations Whether you’re manufacturing, installing, or servicing equipment, keeping up to date with regulatory changes is key to compliance. In addition, because recent and pending regulatory changes may impact both legacy and new-generation refrigerants and equipment, understanding changes offers an important tool for planning for what’s next.  Recordkeeping Regulatory bodies conduct audits relying heavily on recordkeeping and reporting to ensure compliance Regulatory bodies conduct audits relying heavily on recordkeeping and reporting to ensure compliance. This will mainly impact manufacturers, importers, and equipment owners.  However, accurate and consistent recordkeeping on the contractor side can prove to be incredibly beneficial to your business’s operating efficiency, bring added value to your customers, and support sustainability objectives.  Repair leaks Practicing consistent, effective leak detection and repair is an important part of regulatory compliance that can also impact your bottom line by reducing service gas costs and keeping systems operating at peak efficiency. In addition, it’s the first line of defense in reducing HVAC systems’ impact on the environment.  Replace equipment As systems approach the end of their serviceable lifetime, define which new, higher-efficiency units utilizing A2L refrigerants offer the best replacements. Remind customers of benefits such as reduced energy consumption and operating costs.  Retrofits It may still make sense, where applicable, to perform a refrigerant conversion If equipment is in good condition and not nearing the end of its serviceable lifetime, it may still make sense, where applicable, to perform a refrigerant conversion. Thus allowing the equipment to operate with a more sustainable and readily available refrigerant.  Recovery The first step in supporting refrigerant circularity is recovery, which means removing refrigerant from a system and placing it into a separate container. During this process, it’s important to maintain the refrigerant’s value/purity as much as possible by not mixing gases.  Reuse/Recycle This means returning recovered refrigerant to the same system or another system with common ownership. Removing oil, moisture, or other contaminants via minor “cleanup” or filtering of the recovered gas may be part of the process.  Reclamation HFC phasedown and the transition to A2L refrigerants will continue to impact the operations of HVAC contractors Reprocessing recovered refrigerant to meet virgin purity specifications allows it to be reintroduced commercially for industry use and is becoming increasingly important in ensuring ample legacy refrigerant supply exists to meet current servicing needs. In the U.S., reclamation must be performed by EPA-certified reclaimers.  Whether it’s through new regulations or processes and requirements already underway, the HFC phasedown and the transition to A2L refrigerants will continue to impact the operations of HVAC contractors, equipment owners/operators, OEMs, equipment sellers/distributors, and others. A2L transition Implementing a solid refrigerant management strategy built around the Eight Rs can help you consistently and effectively stay updated on regulations, take steps to remain compliant, and contribute to industry efforts to mitigate global warming. In addition, following the Eight Rs can keep your company ahead of continued HFC phasedowns, aligned with the A2L transition, and in a strong position to both maintain your legacy refrigerant business and possibly expand your customer base through new-generation solutions.

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.  

TE Connectivity’s main product categories for the HVAC market are power interconnects, signal interconnects, magnet wire for motors, and heat-shrink tubing to seal against environmental factors. component materials The company works with HVAC original equipment manufacturers (OEMs) to solve challenges such as harsh environments, safety, and power and signal usage. Although components are a “small” element when an OEM assembles an HVAC system, their impact can be big. For example, a tiny component not producing a spark could make it safer to introduce mildly flammable refrigerants into the newer HVAC systems.  Addressing material compatibility Raising questions about component materials not degrading by exposure to newer chemicals over time Also related to the transition to newer refrigerants is the issue of materials compatibility, raising questions about component materials not degrading by exposure to newer chemicals over time. “The big trends in HVAC are higher efficiency, more intelligence (in the context of the Internet of Things), faster data transmission, better safety, and more reliability,” says Joseph Burch, Business Development Manager for TE Connectivity’s Appliance Business Unit.  product portfolio TE Connectivity is a brand associated with high quality. OEM customers think of the company (rather than lower-cost competitors) when they have a critical design and/or they need to access TE Connectivity’s vast product portfolio spanning a variety of markets. Broadly speaking, their products include wire-to-board connectors and wire-to-wire connectors at a range of amperages, voltages, and sealing requirements. The broad product line means there are likely solutions within the TE Connectivity family for many OEM design needs.  durability and sustainability “We try to meet customers where they are and where the supply chain is,” says Burch. In addition to dealing directly with OEMs, the company works around the world alongside contract manufacturers of various subsystem components. Currently, TE Connectivity is a global leader with a strong focus on reliability, durability, and sustainability in its connectivity and sensor products. They serve a range of industries, including HVAC, and are known for their contributions to technological advancements.  the efficiency of heat pumps Higher efficiency requires precise monitoring of electrical signals and transmission of data For TE Connectivity and others, driving development in the HVAC market is the transition to heat pumps, a rapidly growing equipment category. Achieving the improved efficiency of heat pumps raises the stakes from a component perspective boosting the need for sensors and faster data transmission. Higher efficiency requires precise monitoring of electrical signals and transmission of data. Integration of heat pumps with renewable energy sources, such as solar, requires even more connections and better communications.  rapid data transmission The ability of newer systems to adapt to changing environmental conditions depends on the fast transmission of sensor data to guide operation. In effect, rapid data transmission, using signal interconnects, makes it possible to achieve higher efficiencies that are critical to newer systems. The faster signals are communicated, the more efficient the systems are. Larger systems are increasing the demand for higher power, and efficiency standards are driving more sensing needs, as is the trend toward smart homes.  flame retardant Addressing one of the big challenges in the HVAC market, TE Connectivity sells its products to withstand harsh environments such as moisture and vibration. In a typical HVAC scenario, half the system is located outdoors and exposed to weather and other elements. From a safety perspective, electrical connectors on HVAC units are unattended 24/7, so reliability is critical, and materials must be flame retardant and withstand high temperatures. Parts must adhere to the Underwriter’s Laboratories (UL) VO flammability rating, which means a flame extinguishes within 10 seconds and there is no dripping.  competitive analysis TE Connectivity’s business development teams seek broadly to assess the size of a market, such as HVAC, and the magnitude of the opportunity in each market for their various product lines. In addition, the company attends trade shows to see the latest trends to seize the opportunities to promote the company’s brands and products to the market.  TE Connectivity engineers conduct “in-house teardowns” of existing OEM products to analyze how various components are used and how they might be improved to refine the overall solution. TE Connectivity’s competitive analysis labs are frequently looking for new opportunities to innovate. address design-related issues A “system architecture team” within the engineering group is tasked with understanding how systems work TE Connectivity’s engineers also work directly with OEM customer engineers to address any design-related issues. The field engineering team works on the “front line” with customers and provides feedback to the company’s development engineering team, which gets involved as needed. A “system architecture team” within the engineering group is tasked with understanding how systems work, new technologies, new regulations, and innovations, and establishing roadmaps to forecast needs looking ahead five to ten years.  Multiple design trends “Our engineering teams are problem-solvers, focused on connectivity problems across many industries,” says Joshua Poterjoy, Senior Manager, Product Development Engineering. Multiple design trends are among the factors driving product needs, such as miniaturization, higher-speed data transmission, the need for ergonomic and modular designs (for ease of assembly), and components designed for assembly and packaging automation. Components also adhere to Restriction of Hazardous Substances (RoHS) directives that avoid the use of hazardous substances in electrical and electronic equipment.  ease of installation GRACE INERTIA series signal connectors provide fine-pitch connections for smaller electronics Creating components to deploy ergonomic and modular designs promotes ease of installation, both for assembly by the OEM company and for installers in the field. Components are designed to be as simple as possible while achieving all the operation and reliability standards. Quick-connect and twist-and-lock systems provide an assuring “click” when a robust connection is made. For example, the company’s Universal MATE-N-LOK multi-position power connectors are often used in the HVAC market from powering control cards to motors to fans. Also, the GRACE INERTIA series signal connectors provide fine-pitch connections for smaller electronics.  TE Connectivity’s history TE Connectivity’s history can be traced back to the founding of AMP Incorporated in 1941, which pioneered the development of electrical connectors. In the 1990s, AMP became part of the Tyco International conglomerate, further expanding and diversifying. In 2007, Tyco International split into three independent companies, including Tyco Electronics, which focuses on connectivity and sensor solutions. Tyco Electronics changed its name to TE Connectivity in 2011.

SNAP Rule 26 marks an important milestone in the transition from commercial refrigeration to new refrigerants. The rule lists refrigerant substitutes that provide a spectrum of technological solutions to meet required performance, global warming potential (GWP), safety, and environmental standards.  SNAP stands for Significant New Alternatives Policy, a program by the U.S. EPA (Environmental Protection Agency) under the Clean Air Act. In general, the program aims to evaluate and regulate substitutes for ozone-depleting substances, considering their overall risks to both human health and the environment. Impact of SNAP Rule 26 Final SNAP Rule 26, Protection of Stratospheric Ozone, lists acceptable substitutes in commercial and industrial refrigeration. SNAP Rule 26 will be effective July 15, 2024. The incorporation by reference of certain material listed in the rule is approved by the Director of the Federal Register as of July 15, 2024. The incorporation by reference of certain material listed in the rule is approved by the Director of the Federal Register “To date, the SNAP program has provided a very effective framework for evaluation and approval in support of innovation and the transition to new technology,” says Andrew Pansulla, Technical Service Engineer, The Chemours Company, a global chemistry company that provides a range of refrigerant products. We asked Pansulla to elaborate further on the impact of SNAP Rule 26 and what lies ahead. Q: How will the Rule’s finalization impact various commercial refrigeration sectors? Pansulla: The rule’s finalization will impact commercial refrigeration in several ways. Areas, where impact will likely be seen, include providing more acceptable refrigerant options, adherence to updated standards, new equipment design standards, and the exemption of propane from the venting prohibition for refrigerated food processing and dispensing equipment. These impacts could trigger changes in operational, manufacturing, and environmental compliance strategies in the commercial refrigeration sectors. SNAP Rule 26 will enable the adoption of the listed substitutes, including Chemours Opteon™ refrigerants, with global warming potential (GWP) lower than existing refrigerants. This rule does not require any changes to existing equipment and will impact only new equipment that uses the specific substances referenced in the SNAP rule. Q: What is the outlook for additional requirements for safe handling and use of alternative refrigerants? What specific safety standards are expected or appropriate? Pansulla: As part of the comparative risk framework used by the EPA to assess new alternatives, the EPA considers and implements use conditions that will ensure the safe use of products. These use conditions rely upon existing safety standards (e.g., UL and ASHRAE) which are available at the time the rule is finalized. In the case of SNAP Rule 26, many of the use conditions require adherence to UL 60335-2-89 and ASHRAE-15-2022. These standards are reviewed and updated periodically to maintain relevance with the products subject to the standards. Q: What are any limitations of the use of A2L refrigerants under SNAP Rule 26? Pansulla: There are two main categories of limitations under SNAP Rule 26. The first, as mentioned above, is the adherence to specific safety standards that apply to refrigerants that are designated as mildly flammable (A2L). The second is based on the GWP of the refrigerant. In the case of the A2L refrigerants subject to SNAP Rule 26, the EPA imposed conditions on the type of equipment and specific circumstances in which the substitute may be used. For example, the EPA is permitting the use of R-454A in supermarket systems, but only on the high side of a cascade system, or when the refrigerant charge capacity is less than 200 pounds. Q: Which new-generation A2L refrigerants are fit for which commercial refrigeration applications? Pansulla: Under SNAP Rule 26, the EPA deems R-1234yf, R-1234ze(E), R-454C, R-455A, R-457A, and R-516A as acceptable subject-to-use conditions for various commercial refrigeration applications. This selection is primarily driven by these refrigerants having GWPs under 150. However, certain applications necessitate refrigerants with higher GWPs due to unique performance characteristics. For example, R-454B and R-32 were listed for industrial process refrigeration with exiting fluid temperatures below minus 30 degree Celsius because these two specific refrigerants have lower boiling points than the other six less-than-150-GWP alternatives. However, it is critically important to consider the additional use conditions when designing equipment with refrigerants that have a GWP greater than 150. Q: So various equipment needs different refrigerants? Pansulla: The EPA purposefully lists several different refrigerants in each application to allow for equipment manufacturers to consider a variety of different factors that go into refrigerant selection, such as energy efficiency, capacity, normal boiling point, temperature glide, cost, safety, and use conditions. There is no one-size-fits-all solution for the entire commercial refrigeration industry. Q: How can commercial refrigeration businesses achieve a smooth transition to A2Ls? Pansulla: Keys to a smooth transition to A2Ls include understanding what refrigerants the EPA has approved as acceptable substitutes under the SNAP program, the sector-based GWP limits imposed by the Technology Transitions Program under the American Innovation and Manufacturing (AIM) Act, and which refrigerants provide the best combination of technical performance and environmental characteristics. Many resources are available to navigate the regulatory landscape and select the best low-GWP refrigerants to meet the needs of this industry. Working with companies like Chemours, who has nearly a century of refrigerant innovation and experience, is a great first step in the transition process. Q: What is the “staying power” of A2Ls — based on their chemistry, sustainability, and other attributes, combined with regulations such as SNAP Rule 26? Pansulla: The identification, selection, and development of new refrigerants that deliver required performance while meeting increasingly stringent environmental standards is a challenging process. With the identification of certain hydrofluoroolefin-based (HFO) refrigerants as an alternative to meet these criteria came a new safety classification. These HFO-based refrigerants are classified as A2Ls. While slightly more flammable than existing hydrofluorocarbon-base (HFC) refrigerants, HFOs are much less flammable than hydrocarbons, which are classified as A3 (two categories higher on the ASHRAE flammability spectrum). Moreover, such refrigerants offer an excellent alternative to substances with higher toxicity, such as R-717. The listing of A2L refrigerants in SNAP Rule 26 clearly indicates that such refrigerants can be used safely in commercial refrigeration as well as many other applications, which are subject to the SNAP Program, when adhering to the applicable safety standards.

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?##}

When they are one of the largest beverage distributors in the U.S., it’s crucial to stay ahead of the curve on everything that drives customer satisfaction, corporate responsibility, and a strong bottom line. Hensley Beverage Company did exactly that when it collaborated with Chemours and American Refrigeration Supplies, Inc. (ARS) to implement a system utilizing a new-generation A2L refrigerant, Chemours Opteon™ XL20 (R-454C). Completed in 2023, the installation paves the way for companies throughout the commercial refrigeration industry to embrace refrigerant technologies that are both cost-effective and environmentally sustainable. Situation The company recently ended an acquisition that grew its distribution footprint into New Mexico Hensley Beverage, a Phoenix-based beverage wholesaler, supports a customer base of more than 9,000 accounts and more than 2,500 individual products, operating out of six locations across Arizona.  The company recently completed an acquisition that expanded its distribution footprint into New Mexico, making it one of the largest family-owned and operated beverage distributors in the nation. As it grows, Hensley remains committed to maintaining exceptional product integrity, upholding its multi-generational family business legacy, and supporting a variety of environmental objectives. These factors, coupled with the current regulatory landscape (notably, the phasedown of legacy hydrofluorocarbon (HFC) refrigerants), have put Hensley’s focus on ways to upgrade its refrigeration systems. Phasedown of HFC refrigerants For the past several years, Chemours, ARS, and Hensley have worked together to retrofit the distributor’s existing R-22 and R-404A systems to Opteon™ XP40 (R-449A), a hydrofluoroolefin (HFO) blend offering zero ozone depletion potential (ODP) and a significantly lower global warming potential (GWP) than legacy products. However, with the ongoing phasedown of HFC refrigerants under the U.S. EPA’s American Innovation and Manufacturing Act (AIM), the teams began weighing the benefits of an even bolder upgrade. “Hensley Beverage is proud to partner with Chemours, TBSI, and ARS to help develop innovative solutions and responsible business practices that drive sustainability in our community. These groundbreaking results are a culmination of partnership and collaboration. It is refreshing to work with three organizations that are this passionate about developing pioneering products that will help shape a better future for the communities we serve,” Alex Dunn SVP of Operations, Hensley Beverage.  Solution Chemours recommended bringing Opteon™ XL20 (R-454C) into Hensley’s refrigeration plan Even as Chemours, ARS, and Hensley continued to strategically employ retrofit solutions in some areas, they explored options that would put the company in a stronger position for the long term. Chemours recommended bringing Opteon™ XL20 (R-454C) into Hensley’s refrigeration plan. A mildly flammable refrigerant with an ASHRAE A2L safety classification, Opteon™ XL20 is designed for use in new equipment, so Hensley identified an old R-22 system near the end of its life that was ideal for replacement by a new system using Opteon™.  Opteon™ XL20 has been used for several years in Europe and is expected to become the new norm in the U.S. by 2026, based on the current direction provided by the EPA. Leveraging its experience in Europe, the Chemours team of technical service and business development resources is prepared to support end users as they consider trial installations using A2L refrigerants. Features of Opteon™ XL20 Opteon™ XL20—the future of sustainable low- and medium-temperature refrigeration GWP of 148 (a 96% reduction versus R-404A)  Zero ODP Enables much higher charge sizes than highly flammable A3 refrigerants Is a close performance match to R-22 and R-404A Offers the optimum balance of performance and environmental sustainability Provides an easy, cost-effective alternative to legacy refrigerants in new equipment applications Utilizes well-known technology for ease of service and maintenance Benefits of HFOs Hensley was an early adopter of Opteon™ XP40, retrofitting equipment to experience better “Hensley was an early adopter of Opteon™ XP40, retrofitting equipment to experience better environmental outcomes, as well as high performance in low- and medium-temperature applications. Experiencing these benefits of HFOs whet their appetite to ask, ‘What next?’ With a strong dedication to supporting their communities and the environment while operating an efficient and thriving business, Hensley is a company that pushes the envelope." "Chemours was ready with our next-generation Opteon™ XL20—that will ensure they achieve maximum performance, operating efficiency, and sustainability," Joe Martinko President, Thermal and Specialized Solutions, Chemours. New low GWP refrigerant  “Our industry is undergoing some of the most significant regulatory changes in history and will be for the foreseeable future. ARS was excited to work with Chemours and be a part of the launch at Hensley of the new low GWP refrigerant." "It’s been a privilege for ARS to help bring together such an excellent group of partners for this project—and to install a first-of-its-kind system right here in Tucson, a community we’ve proudly served since 1948,” John White President, American Refrigeration Supplies, Inc.  Opteon™ XL20 properties ASHRAE Number: R-454C Composition Weight%: R-32/R-1234yf 21.5/78.5 Molecular Weight: 90.8 g/mol Normal Boiling Point: -45.6 °C (-50.0 °F) Critical Pressure: 4318.9 kPa (626.4 psia) Critical Temperature: 85.7 °C (186.2 °F) Liquid Density at 21.1 °C (70 °F): 1058.2 kg/m³ (66.1 lb/ft³) Ozone Depletion Potential (CFC-11 = 1.0): 0 AR4 (AR5) GWP (CO₂ = 1.0): 148 (146) ASHRAE Safety Classification: A2L Temperature Glide: ~6 K (~10.8 R) LFL (UL 60335 2-89 WCF): 0.291 kg/m³ (0.018 lb/ft³). Collaboration and Installation The installation brought together additional resources from the HVACR industry, including Copeland and Heatcraft Refrigeration Products— two ARS manufacturing partners—as well as Technical Building Services, Inc. (TBSI), the local HVACR service provider. As HVACR technology providers helping customers achieve their sustainability, decarbonization, and regulatory compliance goals, Heatcraft and Copeland had the knowledge and experience of emerging A2L requirements and the capabilities to support the project. TBSI was selected as the contractor for installation and servicing.  Use of R-22 in other Hensley systems Installation, evacuation, and setting methods were very similar to the recent refrigerants With the team assembled, Chemours took the lead on the project, ensuring that the contractor, Hensley’s service personnel, and others involved were certified through the ESCO Institute’s A2L refrigerant training program, and answering any questions from the local authorities.  After safely recovering the R-22 for use in other Hensley systems, the team from TBSI started removing the existing Keg 6 equipment, hanging new evaporator coils, and running new refrigerant lines. Installation, evacuation, and charging procedures were very similar to the current refrigerants in use by industry, making for a time- and cost-efficient process. Next generation of climate technology “Copeland has always been focused on not just setting the standard in climate solutions with pioneering brands in compression, controls, software, and monitoring—but pioneering the evolution in this space. Our role in the system design and installation for Hensley was right in our wheelhouse. What we accomplished together demonstrates that by bringing together energy-efficient products, regulation-ready solutions, and expertise, we can revolutionize the next generation of climate technology for the better,” Brian Schroeder Engineering Manager, Refrigerants, Copeland.  “Our tools and gauges were already enabled for the R-454C refrigerant. The startup and charging of both systems went pretty smoothly. TBSI is proud to have participated in the project at Hensley and, by doing so, adding to the variety of equipment we’ve worked on since founding our business in 1990. This was a great opportunity to grow our experience with A2Ls,” Sergio Pelayo Vice President, TBSI.  Copeland monitoring data Copeland applied monitoring units to the systems that capture nearly two dozen data points every second To make sure the system performed as expected, Copeland applied monitoring units to the systems that capture nearly two dozen data points every second. The data has shown that the systems are running as designed.  “We are thrilled with the results of the R-454C project with Hensley Beverage. As we continue our journey toward new regulation compliance, this successful collaboration has been instrumental in leveraging Heatcraft’s new product design efforts, with A2L refrigerants being an important part of the mix. We are poised to lead the industry and provide more customers like Hensley with cutting-edge solutions that drive their success,” Bob Landi Vice President and General Manager, Heatcraft Refrigeration Products. Summary Influenced by upcoming regulatory changes and stronger organizational ESG commitments, the commercial refrigeration industry’s transition to lower GWP refrigerants is inevitable. Opteon™ refrigerants provide organizations with lower GWP options that can help extend the useful life of their systems, as well as new equipment options that enable decades of reliable operation. Moreover, these systems answer the consumer preference for businesses that utilize responsibly manufactured products and support a greener environment. Hensley’s approach demonstrates an ideal way for companies to meet the needs of refrigerating their products while following the guidelines of the HFC phasedown. It’s important to assess where your equipment is in its lifecycle and determine if it makes the most sense in terms of budget, performance needs, and corporate vision to (1) retrofit existing equipment for more efficient and sustainable operation or (2) replace it with A2L refrigerant technologies and products.

The emphasis on sustainable processes has never been greater than in today’s marketplace. Environmental conservation must be considered in every phase of appliance design and in every step of the product lifecycle.  Product designers use sustainable materials to limit carbon footprint, efficient and reliable components are chosen to reduce environmental impact during product operation, and, after the end of a product’s useful life, responsible companies must even plan for recycling and disposal.  TE Connectivity’s Industrial Technology Index, a survey of global companies focused on the innovation culture of engineers and executives, showed that innovation and sustainability are business priorities for most engineers and executives alike. Sustainable practices are now being integrated early in the innovation process, providing more opportunities to limit the environmental impact of new products. Sustainable design considerations throughout the product life cycle Sustainable Design Considerations TE’s connectors play a vital role in enabling the safe, reliable and efficient interaction of a wide variety of essential components. A growing emphasis on sustainable practices has compelled the team to develop sustainable products for various types of equipment. Designs for sustainability replace virgin materials that have large carbon footprints with recycled or renewable, biological-based alternatives.  Designs for sustainability replace virgin materials that have large carbon footprints Likewise, efficiency improvements during manufacturing, as well as more reliable, energy-saving connector designs, further limit the environmental footprint of these products. TE’s cluster block products, used for compressor applications like air conditioners, heat pumps, and refrigerators, have been redesigned with this sustainability in mind. These innovative products will help enhance the reliability of compressors, while reducing energy consumption and minimizing carbon footprint. Enhanced Safety, Performance and Productivity Reducing the temperature of connectors in operation results in less wasted energy. This can improve the performance of the compressor which translates to better appliance efficiency.  The sustainable cluster block achieves this goal with an additional contact beam, shown in Figure 2, that minimizes electrical contact resistance, optimizing the energy transmission, reducing temperature rise and providing the required connection. Additionally, the innovative lead-in alignment feature, illustrated in Figure 3, helps to error-proof the connection, improving safety as well as productivity of automated assembly processes.  The sustainable cluster block achieves this goal with an additional contact beam Potential health hazards The cluster block uses a renewable, plant-based material (Figure 4) that can be sustainably produced with minimal impact to the environment.  This high-performance material meets the stringent International Electrical Code (IEC) with flammability ratings tested to UL 94 V-0, CTI 600V and GWEPT 750°C (1380°F) no flame requirements. Made up of 50% castor bean oil, the material is halogen-free which further limits the potential environmental impact. This material reduces the carbon footprint by more than 45% during production, use and disposal while also eliminating potential health hazards.  Conversion of renewable, plant-based material into halogen-free, flame-resistant resin for the cluster block housing Minimizing environmental impact TE’s new cluster block (Figure 5) was designed to minimize environmental impact by reducing consumption of natural resources, minimizing waste and promoting renewable energy. To mitigate climate change, the cluster block connector features 19% lower plastic usage and 26% lower metal usage, when compared to legacy connectors (Figure 6).  The cluster block connector features 19% lower plastic usage and 26% lower metal usage The sustainable cluster block will help TE contribute to maximizing the safety, performance and sustainability of compressor applications. This technology is a key step in meeting the growing demand for cost effective, environmentally friendly solutions that are compatible with modern automated assembly processes. As the appliance industry continues to evolve, sustainable connector designs will undoubtedly play a key role in shaping the future of compressor applications and beyond. 

Tarkett’s vinyl flooring factory in Ronneby, Sweden, is using ABB data insights and service expertise to save 800 megawatt-hours (MWh) of energy per year from their motor-driven systems. This is around 1 percent of the site’s total energy consumption in a year and is equivalent to the energy needed to charge 68 million smartphones for the same amount of time. ABB Ability™ Digital Powertrain Energy Appraisal solution With the current energy prices, the payback period would be only 18 months or less With the data gathered through the ABB Ability™ Digital Powertrain Energy Appraisal solution, ABB identified that upgrading 10 motors to IE5 SynRM technology would boost efficiency from 80 percent to 95 percent. With the current energy prices, the payback period would be only 18 months or less. The service is underpinning Tarkett’s wider strategy to deploy innovative technology and act sustainably in its operations. Upgrading motors to ensure energy efficiency “The biggest lesson for us is that we’ve been maintaining motors that we should have exchanged years ago. We are really impressed by the savings obtained by just upgrading 10 of our motors to more efficient ones,” says Ted Evaldsson, Tarkett’s Supervisor Electrical Maintenance. Having seen the positive results, Tarkett is now planning to further connect additional motors with ABB digital services to yield greater energy savings at Ronneby in 2023, with the help of the digital energy audit. Tarkett extends the coverage of monitored assets By extending the coverage of monitored assets, Tarkett will be better positioned to constantly identify and prioritize energy-saving opportunities at a larger scale, while also saving considerably in CO2 emissions.

PARAT (Parat Halvorsen AS) will deliver the modern IEH 2 x 20MW Electrode Steam Boilers with 6kV connection to AITESA - VALTEC UMISA. The boiler system will have a design pressure of 16 barg and a design temperature of 204°C. The delivery also includes the circulation pump, feedwater pump, chemical dosing unit, start-up, and training of personnel. PARAT’s first Power to Heat project in Spain PARAT is very excited about their first Power to Heat project in Spain PARAT is very excited about their first Power to Heat project in Spain and sees several upcoming projects in the country, with a high focus on installing new renewable energy. The Viscofan Group is the globally renowned company in casings for meat products, which it distributes in over 100 countries worldwide. About Viscofan Viscofan is a global firm in the meat industry’s manufacturing, production and distribution of casings. Their production sites are located in Spain, Australia, Brazil, Belgium, Canada, China, the Czech Republic, Germany, Mexico, Serbia, Uruguay and the United States of America (USA). Viscofan wants to go beyond the traditional borders with a new purpose - Reshaping food and well-being for many, for long, seeking to help to provide access to food and nutrition throughout the world, and to improve the well-being and health of people. They hope to achieve all this with a long-term vision of generating a permanent impact over time. PARAT Power to Heat system will be installed at the Viscofan site in Navarra, Spain.

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.”