DOE

Regulators in Massachusetts recently approved a utility’s plan to offer households with heat pumps a lower electric rate during the winter and to offer a further discounted rate for low-income households. This approach from Unitil, which serves a small portion of the commonwealth, should be improved upon and replicated across the country as regulators consider similar proposals from other utilities.   principles and goals  To maximize benefits for energy-burdened households and the entire electric system, utilities, and their regulators should consider several broad principles and goals as they consider new rates to support heat pumps:  Maintain a price signal for efficient heating, especially during times of peak demand;   Limit participation to households with heat pumps;  Reduce energy burdens for low-income households; and  Get efficient heat pumps for low-income households.  Opportunities to improve differing rate proposals  With typical electric rates, households that use heat pumps for winter heating are often being overcharged The actual cost of distributing electricity to households is usually lower in the winter, in part because utilities build their systems to meet the highest electric demands, which are most often on hot summer days. With typical electric rates, households that use heat pumps for winter heating are often being overcharged relative to their costs to the electric system.  Lower volumetric distribution rate Unitil’s plan, approved late last month, will offer households with heat pumps a significantly lower volumetric distribution rate, the distribution cost per amount of electricity used during the winter months. The company will offset some of that rate reduction with a slightly higher fixed charge each month, but a household using a heat pump for space heating will still save a lot of money, potentially hundreds of dollars a year. Unitil will also offer participating low-income households a further 40% discount on that rate.  Electric space heating rate Under National Grid’s proposal, low-income households wouldn’t be able to apply for a discount  National Grid, another Massachusetts utility, took a different approach for its proposed optional rate, eliminating the volumetric distribution rate in favor of a fixed charge for any participating household, regardless of the heating source. Under National Grid’s proposal, low-income households wouldn’t be able to apply a discount if they chose that rate option. In Minnesota, Xcel also has proposed an electric space heating rate. Like Unitil, Xcel is proposing a lower volumetric rate in the winter, but it would vary the rate based on the time of day and automatically apply a discount for low-income households.  new rates lines How each proposal for new rates lines up with the four principles above has significantly influenced support or opposition: nobody commented in opposition to Xcel’s proposal in Minnesota, Unitil’s proposal received support from the Massachusetts Department of Energy Resources, but National Grid’s proposal has been opposed by many stakeholders in the Commonwealth. Evaluating the three proposals based on the four principles listed above, it becomes clear why the Unitil and Xcel plans were better received than National Grid’s plan:   Maintain a price signal for efficient heating, especially during times of peak demand. While there is usually plenty of room for new electric demand in the winter, that doesn’t mean we should incentivize inefficient use and waste. Unitil’s proposal would reduce the volumetric rate without eliminating it, helping maintain a price signal for efficient electricity consumption. Xcel goes even further in the right direction, adjusting rates upward during times of high electricity demand and downward when there’s less electricity use (known as a “time of use” rate), providing an incentive for shifting use away from the most expensive hours of the day. National Grid’s proposal to charge a flat distribution fee regardless of consumption does not maintain that price signal.  Limit participation to households with heat pumps. Not all electric heating is efficient—heat pumps are, but electric resistance is not. Utilities should limit participation in electric heating rates to households that have a heat pump. This is where Unitil’s proposal is the best of the lot. Xcel’s would enable participation for any electric space heating, not just heat pumps, which could incentivize inefficient electric resistance heating. National Grid’s proposal also moves in the wrong direction, enabling participation by any household regardless of heating fuel, a recipe for simply subsidizing inefficient electric use.  Reduce energy burdens for low-income households. Too many households are struggling to afford their energy bills, often with disastrous consequences. Any rate design proposal should lower energy burdens for low-income households. Unfortunately, National Grid wouldn’t allow any low-income household participating in its proposed optional rate to also receive a discount for energy assistance. This contributed to vigorous stakeholder opposition to its proposal. Again, Unitil’s proposal was better, allowing low-income households to participate in the heat pump rate and receive the 40% discount on top of that. Xcel’s proposal has one even better feature: applying the discount for energy assistance automatically for all eligible low-income households, to keep energy burdens below 4%. Get efficient heat pumps for low-income households. Admittedly this last principle isn’t rate design, but it is equally important and intertwined. If only wealthier households are adding heat pumps, then a reduced winter electric rate for households with heat pumps will be regressive, with lower-income households paying higher rates. So any heat pump rate has to be paired with a robust program to fund the installation of efficient heat pumps for low-income households. Those low-income households with heat pumps should automatically be given the heat pump rate and energy assistance to ensure their overall energy burden doesn’t increase.   efficient and affordable electric heating The recent proposals in Massachusetts and Minnesota are among the earliest for new optional rates to account for the differing costs and benefits of electric heating, but they won’t be the last. The Colorado legislature has mandated a proposal from utilities to encourage heat pump adoption in coming years, and more states are expected to do the same. The early proposals offer important lessons for other utilities and state regulators on the right and wrong, ways to encourage efficient and affordable electric heating. 

Carrier is partnering with the Department of Energy to develop next-generation heat pump technologies that result in higher efficiency light commercial rooftop units with reduced life cycle costs for end users including school, retail and office space customers. Carrier is a part of Carrier Global Corporation (NYSE: CARR), a global pioneer in intelligent climate and energy solutions. The Better Buildings Commercial Heat Pump Accelerator is aimed at addressing the climate crisis by accelerating energy innovation – pushing cutting-edge, more sustainable electrification technologies from lab to market faster, with the added benefit of lowering energy costs.  adoption of heat pump-packaged RTUs The Commercial Building Heat Pump Accelerator will work with commercial building owners According to the Department of Energy, heat pump packaged rooftop units (RTUs) are estimated to reduce GHG emissions and energy costs by up to 50% compared with conventional natural gas-burning models. The Commercial Building Heat Pump Accelerator will work with commercial building owners, operators and manufacturers to accelerate the development and adoption of heat pump-packaged RTUs across climates within the United States. As part of ongoing collaboration efforts, Carrier is proud to be among the manufacturers taking part in the accelerator while working with the Department of Energy’s National Renewable Energy Laboratory to test and validate all product claims.  Decarbonization goals Carrier is also participating in the Department of Energy’s Cold Climate Heat Pump Challenge New light commercial products developed by Carrier engineers will help customers including major retailers and other companies meet decarbonization goals and increase energy efficiency. Carrier is also participating in the Department of Energy’s Cold Climate Heat Pump Challenge for residential applications and will have commercialized units with advanced technology available later in 2024. “Carrier’s innovation in HVAC began when Willis Carrier launched the industry more than a century ago,” said Heidi Gehring, Managing Director of Light Commercial, Carrier. “We are proud to continue pioneering within the industry as we work to bring more efficient and affordable next-generation light commercial heat pumps to market as soon as 2027.” Better Buildings Initiatives According to the Department of Energy, the U.S. spends about $800 billion each year to power buildings, manufacturing facilities, and homes and on average, between 20% and 30% of the nation’s energy is wasted. The Accelerator and other Better Buildings Initiatives with public and private sector stakeholders are pursuing ambitious goals to cut that waste through improving design, equipment and operations. “As an inaugural partner in the Better Buildings Commercial Heat Pump Accelerator, Carrier is demonstrating a commitment to leadership and collaboration,” said Maria Vargas, Director of DOE’s Better Buildings Initiative. “We are thrilled to work together on this important initiative to drive greater energy efficiency and decarbonization in our nation’s buildings.”

Midea America, in collaboration with Warner Bros. Discovery, is proud to present "Project Homestead," an inspirational mini-documentary showcasing the transformative renovation of Willow Ranch. Willow Ranch is a residential facility near Willow, Alaska operated by Hope Community Resources, the foremost provider of support services to adults with intellectual and developmental disabilities, traumatic brain injuries, mental health challenges and complex medical conditions in Alaska. Project Homestead highlights the installation of various Midea home appliances and its innovative, energy-efficient, cold-climate heat pump system, which will provide a warm haven for a deserving household for years to come. An Inside Look into Project Homestead Midea was thrilled to be involved in this project to showcase its desire to make energy-efficient In this heartwarming film, viewers will witness the transformation of a house on the Willow Ranch property, home to four residents supported by Hope Community Resources. The collaborative efforts of Midea, Warner Bros. Discovery, Hope Community Resources, local contractors, and volunteers provided a life-changing, all-expense-paid home renovation.  Willow, Alaska, with its extreme climate, serves as the perfect backdrop for this project, underlining the importance of warm, energy-efficient living environments. Midea was thrilled to be involved in this project to showcase its desire to make energy-efficient heat pump technology more accessible across all communities. Performance of Midea's cold-climate heat pump Hosted by Jeff Thorman, seasoned general contractor and the face of Home RenoVision DIY, the film explores how home renovation can positively impact the lives of people in need. "I am thoroughly impressed with the exceptional performance of Midea's cold-climate heat pump system, especially in the challenging harsh winter conditions of Alaska," expressed Jeff Thorman. "Having been in the home renovation industry for 25 years, I have a deep appreciation for innovative technologies that not only provide essential comforts but do so in an energy-efficient and cost-effective manner. Midea's system is a testament to what modern engineering can achieve – delivering reliable heating even in extreme cold, which is a game-changer for regions like Alaska.” Midea’s Heat Pump System Midea’s cold-climate heat pump system can deliver efficient heating and cooling in all American climates, even northern regions during harsh winters. Midea’s cold-climate heat pump system achieved 118% of the rated capacity heating output While heat pumps historically have a reputation for underperforming in temperatures below 40 degrees Fahrenheit, in recent lab testing sanctioned by the U.S. Department of Energy as part of its Cold Climate Heat Pump Technology Challenge, Midea’s cold-climate heat pump system achieved 118% of rated capacity heating output at −15 degrees Fahrenheit – debunking the myth that heat pumps only work in mild climates and proving that heat pumps are the HVAC systems of the future, everywhere. This also comes at a time of extreme demand for cost-effective and energy-efficient options, with the supply and transportation costs of fossil fuel in Alaska continuing to rise. Innovation and diverse solutions "Midea is at the forefront of heat pump innovation, designing contractor and user-friendly systems that are making this modern technology accessible for all,” said David Rames, Senior Product Manager, Midea America Corp. “Our commitment to innovation and diverse solutions reflects our dedication to making a positive impact on everyone who needs high-performing, highly efficient comfort solutions. The efficacy of our heat pump system in Alaska – especially for residents in need – is the ultimate proof and something in which we take immense pride.” Production units of Midea's forthcoming cold-climate heat pump system are slated to be available in the summer of 2024. Additional Midea Appliances Beyond the Midea cold-climate heat pump system, the renovation also featured the installation of other Midea home products and technologies intended to enhance the comfort and well-being of the residents: a refrigerator, air fryer, and oven. Midea’s SmartHome application and technology will also allow Hope Community Resources to control and monitor operations remotely and provide useful information regarding usage, condition and energy consumption.

Nearly two dozen efficiency programs are helping builders and designers construct growing numbers of new homes and buildings that can produce at least as much energy as they consume or be modified to do so in the future. If the United States is to dramatically reduce greenhouse gas emissions, users need new homes and buildings to minimize energy use and emissions. A new ACEEE white paper identifies 22 programs advancing zero-energy, zero-carbon, or zero-energy-ready buildings, including 14 residential and 8 commercial programs.  zero-energy, zero-carbon building A zero-energy building generates at least as much energy as it consumes over a year, often using solar panels. Some aim for net-zero-carbon or -emissions, meaning they emit net zero carbon dioxide annually. The difference between zero-energy and zero-carbon classification is that the latter accounts for the carbon emissions associated with electric power generation, which vary based on when the power is needed and which generating plants are operating at those times. Zero-energy or zero-carbon criteria Zero-energy and zero-energy-ready buildings typically use 25–50% less energy than current building code Short of building to zero-energy or zero-carbon criteria, many programs promote zero-energy-ready buildings, which are efficient enough that they could be operated with onsite energy and be zero energy if a solar energy system were eventually installed. Zero-energy-ready buildings often include floor and roof configurations, conduit or wiring, and electric panel capacity that will make it easy to hook up electric heating and cooking equipment and solar panels in the future. Zero-energy and zero-energy-ready buildings typically use 25–50% less energy than current building code requirements.  Programs have growing budgets and participation The 22 programs we profile have a combined annual budget of approximately $110 million for 2024. This is about 70% more than the total budget for similar programs examined in a 2020 ACEEE study.  Across these programs, more than 5,000 new single-family homes, nearly 25,000 new apartments, and 222 new commercial buildings totaling 9.5 million sq. ft. have been completed. These figures do not include most of the 21,000 homes completed under the DOE Zero-Energy-Ready Homes program, a growing national program.  affordable housing Most of the completed homes and apartments are in Massachusetts and New York, while a substantial majority of completed commercial buildings are in Oregon, New York, and Vermont. Many other projects are currently under construction, including more than 60,000 apartments and 325 commercial buildings (totaling more than 94 million sq. ft.). California accounts for a large share of these pending projects. Several programs explicitly target affordable housing, while others offer higher incentives for affordable housing. Electric space and water heating are becoming more common Some other programs allow fossil-fuel space and water heating but provide extra incentives Compared to the 2020 study, ACEEE found that a growing number of new construction programs require electric space and water heating. Some other programs allow fossil-fuel space and water heating but provide extra incentives for electrifying these end uses. Several program managers note that going all-electric can become a path to zero emissions as their electric grids become increasingly clean. Key lessons are emerging ACEEE contacted each of the program administrators for an interview to learn more about their programs and the lessons learned. Several themes emerged: Residential programs find it important to train builders on how and why to build zero-energy/carbon buildings and make special efforts to target the largest builders, who can have the greatest impact.  Commercial programs find that building a community of practitioners is very important, as is intervening early in the design process and using this early intervention to set and follow through on energy design goals.  Both residential and commercial programs find that it is essential to highlight the multiple benefits of zero-energy homes and buildings. These benefits include impacts on comfort, health, building resilience, employee satisfaction, and operating cost savings. Programs also report that it is helpful to have simple incentive structures that builders, designers, and developers can easily understand.  energy use and emissions Minimizing new buildings' energy use and emissions is essential for combating climate change and can improve occupant comfort and health. Programs to advance zero-energy and zero-carbon buildings can be an important contributor to efforts to transform new construction markets and ultimately make designing and constructing these buildings common practice.

Johnson Controls., a pioneer in smart, healthy, and sustainable buildings, announced the expansion of the award-winning YORK® Sun™ Premier commercial rooftop unit (RTU) portfolio with new 90–150-ton units. Designed for office buildings, hospitals, and schools, the Premier RTUs, reduce carbon emissions and drive sustainability while reducing operational and maintenance costs. Premier RTUs With a full portfolio ranging from 25-150 tons, the Premier RTUs exceed the Department of Energy (DOE) 2023 energy efficiency standards, and most available tonnages meet the stringent Consortium for Energy Efficiency (CEE) 2024 highest tier ratings. Offered in standard efficiency, high capacity, or high efficiency, YORK® Sun™ Premier units can provide up to 31% greater efficiency at part-load than is required, depending on the standard. Superior performance, efficiency “The expanded Premier line has been redesigned to deliver superior performance, efficiency, and long-term value to customers,” said Sophia Bellos, vice president of product development, Ducted Systems, Johnson Controls. “Now available from 25 to 150 tons, this wide tonnage range allows Johnson Controls to provide contractors with unmatched flexibility to meet the needs of a wide variety of applications.” variable-speed compressor options YORK® Sun™ Premier RTU meets DOE 2023 energy efficiency standards and the CEE highest tier ratings Available in two tiers of efficiency per tonnage, YORK® Sun™ Premier RTUs meet both stringent Department of Energy (DOE) 2023 energy efficiency standards and the Consortium for Energy Efficiency (CEE) highest tier ratings. They combine variable-speed compressor options, variable-speed drive fan options, and low-GWP R-454B refrigerant with advanced airflow and heat transfer technologies to deliver a highly optimized system. Key features The feature-rich Premier systems maximize design flexibility by offering the broadest array of airflow features, including various airflow paths and duct configuration capabilities, meeting the needs across a variety of applications and building construction constraints. Features including airflow measurement stations, dirty filter gauges, filter pressure transducers, and suction, liquid, and discharge shutoff valves reduce time on the roof.  Verasys™ At the same time, built-in redundancy of refrigeration circuits variable frequency drives, and twinning algorithms enhance reliability and uptime. They are Smart Equipment enabled to seamlessly connect to building automation systems such as Verasys™. The 90–150-ton Premier RTUs are available from YORK®, Johnson Controls®, and TempMaster® and are backed by a one-year parts warranty along with either a six- or one-year earned labor warranty (versus the industry-standard 30-day warranty). 

Midea, the world's largest producer of major appliances and an innovator in the HVAC industry, announced the launch of its EVOX G3 heat pump system. This latest generation of the EVOX series, featuring the EVOX G3 Heat Pump and EVOX G3 Air Handling Unit (AHU), represents the future of electric, inverter-driven heat pump technology as the solution for home heating and cooling upgrades, designed to deliver unparalleled heating/cooling comfort, performance and ease of installation across North America. Heat pump credits Heat pump sales in the U.S. have increased by more than 50% in the past five years and overtook sales of gas furnaces in 2022. Under new tax guidelines in the Inflation Reduction Act, those installing qualifying heat pumps, including the EVOX G3 heat pump system, are eligible for tax credits up to $2,000. When paired with existing and forthcoming mandates from cities and states that have banned natural gas from construction in new buildings, the push for advanced, environmentally-conscious systems encourages consumers to upgrade to highly efficient heat pumps. EVOX G3 Heat Pump: Unmatched Cold Climate Performance EVOX G3 product line boasts ultra-high energy efficiency that exceeds CEE Advanced Tier and ENERGY STAR Midea’s new EVOX G3 Heat Pump is the outdoor unit engineered to defy harsh winter temperatures, reliably providing up to 100% heating output at down to -13°F (-25°C) and operating effectively down to -22°F (-30°C), all with a Coefficient of Performance (COP) of up to 1.8. Tailored for optimal performance in virtually all climates, the entire EVOX G3 product line boasts ultra-high energy efficiency that exceeds CEE Advanced Tier and ENERGY STAR Most Efficient specifications. This ensures eligibility for nearly all available Federal rebates in the United States and Canada, significantly easing the financial burden for homeowners. Enhanced Vapor Injection (EVI) Technology Ranging from 1.5-ton to 5-ton units, Midea EVOX G3 heat pumps feature Enhanced Vapor Injection (EVI) technology and a multi-layer heat exchanger, ensuring consistent warmth without reliance on auxiliary heat, even in the most severe weather conditions. The EVOX G3 heat pump delivers stable and optimal heating in extremely cold environments when combined with auxiliary heat.  Eco-friendly heating The 3-ton EVOX G3 unit can achieve energy savings of up to 72.7% compared to traditional electric heaters. The EVOX G3 heat pump offers more eco-friendly heating than a gas furnace without compromising the heating output or user comfort. EVOX G3 also has users covered in the summer, with a cooling efficiency of up to 19 SEER2 that can provide energy savings of up to 32.5% compared to the conventional 14.3 SEER systems currently popular on the market. Cold climate heating performance EVI technology bolsters the heat pump’s heating output, making it a reliable choice during cold weather Midea’s EVI technology is the driving force behind the EVOX G3 system’s revolutionary cold climate heating performance. This technology hinges on a two-stage refrigerant compression process, with an intermediary injection of additional refrigerant vapor. This bolsters the heat pump’s heating output, making it a reliable choice during cold weather, and ramps up its efficiency/COP score.  Energy savings The injection of vapor refrigerant facilitates higher output temperatures while simultaneously expanding the operational range of the heat pump, thereby ensuring outstanding functionality even in sub-zero conditions. Through EVI technology, Midea is combining robust performance and heightened efficiency for energy-saving heating solutions. Tactical Design Midea’s side-discharge design allows for an impressive heating output and COP score compared to many top-discharge models, particularly in colder climates. Requiring only eight inches of rear clearance, these space-saving units offer flexible installation options such as under decks, hanging on walls, or tucked away in a corner. Ideal for snowy areas, the G3 horizontal discharge design deters snow and ice from entering the cabinet. The use of flair-fittings enhances safety by eliminating the need for open flames during installation, simplifying the process. Two-wire communication system Their design ensures quiet operation, increasing comfort in residential settings Additionally, the two-wire communication system between the indoor and outdoor units, and indoor unit to wall control improves system reliability and efficiency, while their design ensures quiet operation, increasing comfort in residential settings. This innovative technology not only delivers better performance and durability in challenging environments but also facilitates easier installation with two-way communication.  Sub-1GHz communication technology The system also uses Sub-1GHz communication technology to enable wireless communication between the EVOX G3 heat pump, the G3 AHU, and the Midea wall control, getting rid of the need for communication wiring and simplifying the installation process. The EVOX G3 heat pump boasts a 27% reduction in height from previous models, making it not only space-saving but also a discreet addition to any home, and the compact footprint makes installation easy in challenging spaces. EVOX G3 AHU with the Installer and User in Mind At the heart of the system is the EVOX G3 AHU, distinguished by its innovative latching modular design that simplifies transportation, installation, and maintenance. Capable of being separated into three manageable pieces thanks to the “Block N Lock” design, this AHU is optimized for single installers, especially when maneuvering into challenging spaces like attics, basements, or crawlspaces. Multi-position installation configuration The industry-exclusive LowBoy application allows for unparalleled flexibility in fitting within existing HVAC spaces Its multi-position installation configuration means contractors can stock one SKU and install it in six configurations. The industry-exclusive LowBoy application allows for unparalleled flexibility in fitting within existing HVAC spaces, and the multi-voltage compatibility in a single unit eliminates the need for voltage adjustments, ideal for replacing gas furnaces. Its narrow width of 14.5” to 21” allows the EVOX G3 to fit into spaces that others cannot. Easy Upgrades from Gas Furnaces With three widths and various BTUs, the EVOX G3 AHU can easily replace older, more inefficient models and dramatically reduce installation costs and time. The AHU’s modular design, 120-volt or 230-volt auto-adaptability, A2L refrigerant and 30% smaller footprint than current ENERGY STAR units make electrification easier. With an easy-to-install design that meets the standards of the ASME (American Society of Mechanical Engineers), the EVOX G3 system promotes electrification and the adoption of clean heating technology by reducing the costs of innovative, energy-efficient HVAC upgrades for both contractors and homeowners. Integrated advanced filtration system The AHU's integrated advanced filtration system can simply be adjusted by the installer to accommodate an easily obtainable 1, 2, or 4-inch filter at the consumer's discretion. The filtration system also yields high-level indoor air quality by effectively removing contaminants from the air. It also provides coil protection and can be used for up to 90 days without the need to replace filters (with a 4-inch filter). Versatile and flexible heating solutions EVOX G3 system allows homeowners to partially upgrade their existing heating systems by integrating seamlessly The EVOX G3 AHU offers versatile and flexible heating solutions fitted to the diverse needs of North American homes. Engineered with dual-fuel capability, the EVOX G3 system allows homeowners to partially upgrade their existing heating systems by integrating seamlessly with existing gas furnaces as a backup. Rapid heating Additionally, the optional electric heat kit can be combined with the heat pump for rapid heating in extremely cold conditions.  The EVOX G3 AHU is also compatible with existing 24V systems, enhancing its adaptability for upgrades and replacements. The accompanying A-coil enhances versatility, being fully compatible with gas furnaces and designed for easy installation with a range of size options and a flexible, multi-position design. Broad Implications The impressive COP of the EVOX G3 Series can not only yield lower monthly energy bills for homeowners but will also lessen the load on utilities and the electrical grid, which is especially important during peak summer and winter demand. The EVOX G3 system supports Demand Response and CTA 2045, functionality that aids in reducing or diverting electricity consumption during prime hours. EPA SNAP-approved A2L refrigerant Midea is helping to reduce overall energy consumption, presenting economically sensible heating and cooling Utilizing the eco-friendly, low Global Warming Potential EPA SNAP-approved A2L refrigerant (R454B), the EVOX G3 system significantly reduces carbon emissions without compromising performance. By using electricity more efficiently, Midea is helping to reduce overall energy consumption, presenting a more environmentally friendly and economically sensible heating and cooling solution, all while providing the ultimate comfort experience. Modern system benefits Midea surveyed with Atomik Research to gauge homeowners’ and contractors’ awareness of heat pump technology and incentives for adoption and found that 80% of homeowners claim to know what a heat pump is despite over half (54%) being unsure or unknowledgeable about its full capabilities, particularly its ability to provide both heating and cooling. Furthermore, 87% of contractors and 82% of millennial homeowners say they would be more likely to consider switching to a heat pump in their own homes after learning more about the performance and cost-saving benefits of modern heat pumps. The results show that homeowners are eager to invest in heat pumps, and education regarding the technological advances will drive further adoption. Availability The EVOX G3 Series is available through Midea's extensive distributor network across North America. Contractors and companies interested in becoming a Midea heat pump distributor, or consumers interested in upgrading to innovative Midea heating and cooling solutions, should call 1-888-MIDEA NA (1-888-643-3262).  More to Come Midea’s 3-ton model achieved 118% of the rated capacity heating output at -15 degrees Fahrenheit As a manufacturing partner of the Department of Energy’s (DOE) Cold Climate Heat Pump Technology Challenge, Midea recently completed lab testing with its forthcoming cold-climate heat pump system. Midea’s 3-ton model achieved 118% of the rated capacity heating output at -15 degrees Fahrenheit meaning the Midea unit can utilize the heat pump for primary heating, reducing the need for auxiliary heat strips or other heating sources.  Efficiency ratings The Midea system delivered tremendous efficiency at -15 degrees F with a Coefficient of Performance (COP) of 1.92 – surpassing the Energy Star cold climate benchmark of 1.7 COP at 5 degrees F – despite it being 20 degrees below the testing standard. Midea's forthcoming cold climate heat pump system now advances into the DOE’s field test phase, with production units slated to be available in the summer of 2024.

According to some recent estimates, the cooling industry accounts for approximately 10% of global carbon dioxide (CO2) emissions. To place this in perspective, the transportation sector, as the highest contributor, accounts for approximately 20% of global CO2 emissions. While some may see this as a “glass half empty” scenario, the better approach is the one taken by key players in the HVACR space. As we see it, because the cooling industry has been a source of significant emissions contributing to global warming, we have a huge opportunity to turn the tide through innovative chemistry and technology. Certainly, having a sizable impact on improving the health of the planet won’t be as fast as “flipping a switch.” Nor should it be. What is required is a thoughtful, well-planned and well-supported strategy that allows everyone involved in the HVACR industry—from refrigerant and equipment manufacturers to retailers, service shops, and end users—to transition to better solutions in ways that best work for them as well as for our planet in crisis. Industry’s Contributions to CO2 Emission CFC use has been reduced to less than 1% of where it was in the 1980s This transition is already well underway. Long before recent estimates about the industry’s contributions to CO2 emission were shared, providers in HVACR got to work innovating solutions to take refrigeration off “the environmental hot seat,” much like we did decades before when scientists pointed to chlorofluorocarbons (CFCs) as a major cause for ozone layer depletion. If you recall, the 1987 Montreal Protocol unified many countries in the effort and drove industries to find and use CFC alternatives, such as the solutions found in zero ozone depletion potential (ODP) hydrofluorocarbon (HFC) refrigerants. CFC use has been reduced to less than 1% of where it was in the 1980s, and it’s expected that, except for the polar regions, the ozone layer will be completely recovered by 2040.  Industry’s contribution to global warming To minimize the cooling industry’s contribution to global warming, we started by looking at two areas that stood to make a major impact—improving the overall energy efficiency of equipment and lowering the overall climate impact associated with HVACR. While not the sole solution for making these improvements, we knew refrigerants could play a significant role. Companies like Chemours went to the labs and harnessed the power of chemistry to innovate a new class of refrigerants consisting of hydrofluoroolefins (HFOs) and HFO blends.  In addition, OEMs engineered new systems and retrofit solutions that worked with these HFOs In addition, OEMs engineered new systems and retrofit solutions that worked with these HFOs, which have zero ODP, offer a global warming potential (GWP) significantly lower than the legacy products they replace, and enable equipment to run with better energy efficiency. At present, in terms of refrigerants, the industry is headed toward an HFO-centric—and more specifically, a low-toxicity, low-flammability A2L-centric—future. A2Ls and megatrends Industry and the world operate under the influence of several megatrends that continue to put focus on emerging next-generation refrigeration. These include: Fast-tracking the move toward decarbonization Circularity—maximizing the use of renewable energy and minimizing waste through reclamation and the infinite reusability of materials Shortage in skilled workforces—making it imperative for businesses to have technicians who can work with HFCs, Class A1 and A2L HFOs, and even CFCs and HCFCs Increased demand for products that not only support a greener environment but that are manufactured responsibly Business of HVACR Solutions need to offer versatility to support everyone from small family-owned shops These megatrends will continue to influence refrigerant transitions. So will the business of HVACR. In addition to supporting the environment, refrigerants and equipment need to cool effectively and efficiently. They also need to minimize energy consumption, offer low or no toxicity, maximize safety for the people working with them, and have price points that make them accessible to most businesses. Lastly, the supply chain needs to be able to support demand, and solutions need to offer versatility to support everyone from small family-owned shops to global corporations.  Ensuring these needs mesh cohesively with the megatrends requires striking the best possible balance of all the factors. This is where continual refinement of refrigerant chemistry becomes critical. At Chemours, this process started with the first products in our Opteon™ line of HFO-based stationary refrigerants. Chemours Opteon™ XP products, such as Opteon™ XP40 (R-449A) and Opteon™ XP10 (R-513A), are nonflammable refrigerants offering excellent retrofit solutions for replacing higher-GWP legacy HFCs, such as R-404A, while maintaining an A1 safety listing. ISO Safety Classification of A2L From here, chemists continued to develop ways to further lower GWP and maximize performance, operating efficiency, and energy savings. At Chemours, this resulted in the Opteon™ XL line. Poised to be next-generation refrigerants, these have an ASHRAE and ISO Safety classification of A2L and deliver very low GWP. Due to their low flammability, A2Ls are used in new equipment only. A2Ls can also lower operating costs throughout the life cycle of the equipment In addition to supporting regulatory compliance, A2L performance attributes include increased system efficiency, lower energy consumption, low toxicity, and improved safety for use in a broad range of applications. A2Ls can also lower operating costs throughout the life cycle of the equipment. We're seeing the path to that A2L-centric future take shape. For example, Opteon™ XL41 (R-454B) has already been selected by most pioneering global OEMs, including Carrier, Johnson Controls, and Rheem, which have announced alignment with Chemours for the utilization of this product.  Preparing for the transition Because regulations vary around the world, we find some regions are highly advanced in the transition to HFOs and A2Ls, while others are just getting started or fall somewhere in the middle. Consequently, there is no single plan to prepare for the refrigerant transition. However, the following considerations can help guide what steps you take, and when you take them. Your corporate responsibility mission. The systems you use, sell, or support should be charged with a refrigerant that is in line with your commitment to the health and sustainability of the planet. Your employees. Consider the people working for you. Will pride in working for a green company impact productivity, job satisfaction, and retainment?  Customers and clients. Comfort, safety, being “green and clean”—all come into play in attracting and retaining customers and clients. The age of current systems you service/support. Older HVACR systems have greater potential for refrigerant leaks. In the case of ammonia, a leak can pose fatal health risks, and in the case of HCFCs and HFCs, can result in subpar performance. Older systems also tend to require costly repairs and operate less efficiently. Market awareness. Keep an eye on supply trends and make sure refrigerant supply can meet the needs of the systems you support. Your bottom line. Newer-generation refrigerants and the systems that work with them have been developed to lower energy consumption. Determine when the time is right to make a larger upfront investment in new equipment, which can pay dividends in the form of lower energy bills and overall operating costs. Technician training. A2Ls look, feel, and work like R-410A or R-404A, but there are key differences due to their low flammability. Ensure technicians are properly trained to work with A2Ls as well as their predecessors. In conclusion—collaboration In a world that continues to demand and expect more, the criticality of HFO refrigerants—and, more specifically, next-generation A2L solutions—is undeniable, because of their environmental and performance advantages over existing alternatives. When you think of the role cooling plays in every part of our everyday lives, it’s easy to see how and why what we do as an industry now stands to have a major influence on the future of our planet. From being essential to every step along the cold chain—from farm to fork—to ensuring both comfortable and healthy living environments to providing the cooling that makes the data centers that make modern-day necessities and conveniences possible, refrigerants are a permanent fixture in lives, and will remain so as the world in which we live, work, and play continues to evolve. By collaborating, we can all advance a transition that leads to a healthier, more sustainable planet and opens opportunities for every application in the industry to provide customers and clients with higher-performing, safer, and more sustainable solutions.

When your HVAC system isn't working correctly, it's often difficult to pinpoint the exact issue. Does your home have hot and cold spots? Do doors randomly close on their own? Is your A/C blowing warm air on a hot summer day? If so, your HVAC might have an uneven airflow. There are many symptoms of uneven airflow and many solutions. Amid the increasing demand for HVAC repair, homeowners need to learn how to keep their home system operating at its best. Understanding the potential causes of uneven airflow can help you troubleshoot the problem and get your HVAC system back up and running efficiently. Evenly distributing air How to Know If Your HVAC Has Uneven Airflow: The desperate temperatures naturally separate, creating deposits throughout your home There Are Hot & Cold Spots in Your House - One of the most common signs of uneven airflow is hot and cold spots in your home. If you notice that certain rooms are always warmer or cooler than others, there's a good chance that your HVAC system isn't evenly distributing air. When air can't flow evenly through the HVAC, the desperate temperatures naturally separate, creating deposits throughout your home. You Don't Feel Much (If Any) Air From the Vent - Another way to tell if your home has uneven airflow is by feeling the air coming out of the vents. If you don't feel much air coming from a particular vent, that's an indication that not enough air is flowing through that area. Alternatively, if you feel a strong blast of air from one vent and barely any from another, that's another telltale sign of airflow errors. Creating pressure imbalances Doors Are Shaking or Closing on Their Own - Have you ever jumped when a door seems to slam on its own? Don't worry, it's not a ghost. Uneven airflow creates pressure imbalances that can cause your doors to swing open/shut or rattle. Vents Blowing Warm Air When A/C Is Turned On - If your air conditioning is cranked down, but the vents are still blowing warm air, that's a problem. Don't turn the temperature lower when this happens. Call your local HVAC technician to diagnose the cause of your inconsistent airflow. Ensuring optimal airflow Causes & Solutions For Uneven HVAC Airflow: Clean or Replace Your Filters - A dirty air filter is one of the most common causes of uneven airflow. When your filter gets clogged with dust and dirt, it restricts the amount of air that can flow through your HVAC system. Some research suggests that using an air purifier can extend the life of your filters You should change or clean your air filters three or four times per year. Pets, smoking, and improperly sealed doors and windows can create extra debris that soils filters sooner. Some research suggests that using an air purifier can extend the life of your filters, but it's still a good idea to change them regularly to ensure optimal airflow. Lower-Rated MERV filters Find the Right MERV Rating For Your HVAC System - When you're looking for a new air filter, it's important to find one with the right MERV (Minimum Efficiency Reporting Value) rating. The MERV scale rates how well an air filter can remove particles from the air; the higher the MERV rating, the more particles the filter will capture. Some homeowners assume that the highest MERV rating is best, but this isn't necessarily true. You need to choose a MERV rating that's compatible with your system's motor. If the filter is too dense, it will reduce airflow throughout the home. Additionally, it could overwork your motor and lead to a premature replacement of your HVAC system. If you choose to use air filters with a higher rating than your system's capabilities, you'll need to change them more frequently than you would with lower-rated MERV filters. Preventing proper airflow It's best to build a fence or shed that leaves plenty of ‘breathing room' Clutter Around The Outdoor Unit - If you have an outdoor air conditioner unit, it's important to keep the area around it clear of debris. Grass, leaves, and twigs can prevent proper airflow and cause your system to overheat. It's a good idea to check the area around your outdoor unit every few weeks and remove any debris that has accumulated. Some people choose to cover up their HVAC to increase curb appeal. It's best to build a fence or shed that leaves plenty of ‘breathing room.’ Any greenery around an HVAC unit can quickly overtake your system's airflow without constant maintenance. Maintaining comfortable temperatures Improperly Fitted HVAC Unit - Bigger isn't always better, especially when it comes to your HVAC unit. A unit that's too large for your home will turn on and off frequently, which can lead to uneven airflow. HVAC units that are too small have to work overtime to maintain comfortable temperatures HVAC units that are too small have to work overtime to maintain comfortable temperatures in the home. This also causes the system to turn on and off frequently and can cause uneven airflow. The right size HVAC unit will depend on the size of your home. If you have an especially large home or if you've converted your single-family into a duplex, you might consider installing two HVAC systems. Specific refrigerant levels The Refrigerant Needs to Be Refilled - Low refrigerant levels is another reason you might feel warm air when the AC is turned on. Refrigerant is responsible for balancing the flow of cool air into the home and pushing warm air out of the home. When refrigerant is low, the air delivered to your home will feel warmer. Replacing refrigerant isn't as easy as adding coolant to your car. HVAC manufacturers dictate specific refrigerant levels. Imbalanced levels can lead to expensive repairs, so it's best to leave this job for the professionals. Save Money & Increase Comfort By Balancing Your HVAC Airflow - If your HVAC has uneven airflow, there are many possible causes. The good news is that most of these causes have relatively simple solutions. If you can't seem to get your airflow under control, be sure to consult a professional. With just a little bit of troubleshooting, you should be able to keep your home comfortable all year round.

A preventive maintenance program could save 12-18% over reactive maintenance, as the U.S. Department of Energy predicted in 2010. For many businesses, the savings could be higher, considering the risks of downtime and today’s economic conditions pushing up costs across the supply chain. It’s also possible for a program to miss the mark. By one measure, 50% of the costs of a preventive maintenance program are often wasted. The question is, how do you know if your maintenance program is generating savings or just adding expenses? preventive maintenance program Statistics can only describe maintenance outcomes in the abstract, usually with averages including businesses outside your industry. Your facility, and the outcomes you need to prioritize, aren’t averages. If you’re going to understand how or if your preventive maintenance program is saving or wasting money, you’re going to have to measure your costs and your desired outcomes. If you do, you may be amazed by the value of your preventive maintenance program. deficient maintenance When a maintenance program doesn’t reduce repair costs, it’s the maintenance provider who benefits from that Or you may find yourself asking why you aren’t seeing the benefits you should. The answer may be that your program is designed to benefit someone else. When a maintenance program doesn’t reduce repair costs or increase equipment life as long as it should, it’s the maintenance provider who benefits from that deficient maintenance, because that deficiency gets them paid faster for the inevitable repair and replacement. Does your service provider want your system to fail? As the provider of both your preventive maintenance and your reactive maintenance, a service provider has an inherent conflict of interest. The optimal outcome for them, on paper, looks like preventive maintenance that has the least possible positive outcome for the client, since that also maximizes their repair and replacement. Of course, there are other factors at play, including the question of whether it's ethical to provide “just enough” preventive maintenance, or perhaps worse, to “overdo” planned preventive maintenance when it won’t benefit the client more than a more cost-effective approach, such as condition-based preventive maintenance. How would I know a program is compromised? To help decide whether a full assessment of your maintenance is warranted, check the list of “green flags” You may be reluctant to devote time and energy to fully investigating the cost-effectiveness of your maintenance program without some indication that you should be worried. Of course, if it’s too time-consuming or frustrating to figure out how effective your maintenance is, that’s already a red flag, your program either lacks transparency or just isn’t prioritizing measurable outcomes. To help you decide whether a full assessment of your maintenance is warranted, check the list of “green flags” below. The fewer green flags you find, the more you should consider a full assessment. 1) 50% less is spent on repairs than our maintenance program. A good rule of thumb to start with: if your business spends over half the cost of your maintenance program on additional repairs, then the maintenance program isn’t prioritizing saving you those repair costs. 2) We’ve experienced no unscheduled downtime within 3 years. One of the main benefits of preventive maintenance is improved control over downtime. By planning maintenance tasks to fit your productivity needs and avoiding equipment failure, you avoid unscheduled downtime. If your maintenance isn’t providing that benefit, then either maintenance schedules or equipment conditions need more attention. 3) Air filters are rated MERV 8 or above and changed at least quarterly. The CDC recommends using the highest efficiency filters possible, considering the impact on the HVAC system Without proper filtration, particulates contaminate your indoor air and cost your system useful life by accumulating inside the system and accelerating wear-and-tear, for instance, particulates that bypass filtration can contribute to coil fouling. To be clear, MERV 8 is not a recommendation for air quality purposes. For instance, the CDC recommends using the highest efficiency filters possible, considering the impact on the HVAC system, while ASHRAE (American Society of Heating, Refrigerating and Air-Conditioning Engineers) recommends a minimum of MERV 13. 4) Maintenance tasking is based on equipment conditions and customized by attributes. This is one place waste easily occurs. Maintenance that ignores conditions, and is only time-based, can over-maintain and waste the useful life of parts. Condition-based maintenance doesn’t rely solely on models that estimate aging but also monitor data and tests for variables that indicate needed maintenance. One study found that only 15-20% of equipment failures were age-related, while the rest were caused by random effects. Since 99% of equipment failures are preceded by some kind of condition or indication of failure, tasking preventive maintenance based on data, rather than schedules, can prevent premature failures that time-based maintenance would miss and increase cost-effectiveness by taking advantage of longer useful life. 5) All technicians in our buildings train on safety and electrical workplace hazards, including the NFPA 70E standard. Maintenance functions can be dangerously siloed when it comes to safety, and sometimes, HVAC technicians are only trained on HVAC tasks. It’s easy to believe that only electrical workers need electrical safety training, but nothing could be further from the case. HVAC technicians also require safety training to deal with hazards they may encounter in the work environment The National Fire Protection Association’s latest report on fatal electrical injuries in the workplace highlights deadly incidents involving work on ventilation systems, and the report on non-fatal injuries states that installation, maintenance, and repair workers suffered the largest share of injuries from exposure to electricity, with service occupations next. HVAC technicians also require safety training to deal with hazards they may encounter in the work environment, such as fall protection, heat stress awareness and approved procedures for confined spaces. A program that doesn’t prioritize safety training can’t pretend to be cost-effective if it opens the door to injury and liability. Avoid conflicts of interest If your maintenance program is compromised, more transparency, with clear, measurable results, can help. Service providers can also prove they prioritize your results by removing that conflict of interest. How? By offering preventive maintenance with quality assurances, such as guarantees to replace maintainable parts at their own cost. That not only removes the conflict of interest but also aligns their interests with yours. By taking your risk of repair costs on themselves, service providers prove they have no conflict of interest, and you can trust they are prioritizing better outcomes for your cost-efficiency.

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

From supply chain challenges to decarbonization, from data analytics to maintenance programs, the themes that ranked highest among visitors to HVACinformed.com in 2022 reflected the dominant topics of conversation throughout the industry. As demonstrated by the most-read articles on the site, technology trends and regulatory issues all converged and had a profound impact on the industry in 2022. Timely and important issues in the HVAC marketplace dominate HVACinformed.com‘s list of most-clicked-on articles in 2022. In the world of digital publishing, it’s easy to know what content resonates with the market: Our readers tell us with their actions; i.e., where they click. Let’s look back at the Top 10 articles posted at HVACinformed.com in 2021 that generated the most page views. Supply Chain Challenges Persist as Demand for HVAC Grows HVAC installers are playing a guessing game about what stock might be available Supply chain issues continued to plague the HVAC marketplace in 2022, causing longer waits for customers. Diesel fuel costs and shortages are the latest factors contributing to delays, alongside continuing manufacturer setbacks and transportation challenges. The supply chain situation changes from day to day. HVAC installers are playing a guessing game about what stock might be available and what will not. The situation persists despite the efforts of warehouses to ensure they had sufficient equipment this year. One installer estimates that two out of 10 clients are waiting on parts. What Does a Successful Maintenance Program Look Like? A preventive maintenance program could save 12-18% over reactive maintenance, as the U.S. Department of Energy predicted in 2010. For many businesses, the savings could be higher, considering the risks of downtime and today’s economic conditions pushing up costs across the supply chain. It’s also possible for a program to miss the mark. By one measure, 50% of the costs of a preventive maintenance program are often wasted. The question is, how do you know if your maintenance program is generating savings or just adding expenses? Four Strategies for Moving the Building Decarbonization Needle The importance of caring for the environment has become a top priority both around the world The importance of caring for the environment has become a top priority both around the world and increasingly in the United States. As regulations and social expectations become more stringent, future-proofing our infrastructure — beginning with energy consumption in buildings — is a natural first step. There are four key strategies a building owner or facility manager can focus on to improve energy efficiency and reduce a building’s carbon footprint, all while improving building performance. How Can Data Analytics Be Used to Enhance HVAC Solutions? Multiple components work together to make an HVAC system run smoothly and efficiently. One of the newer components in today’s systems is data, whether it is information about historic performance trends or the weather outside. A variety of sensors work together to provide data that can be crunched by various algorithms to provide useful information to system installers and end-users, and to help systems run better and longer. Copper: The Material of Choice for Air Conditioning Systems As the demand for air conditioning continues to increase, so too will the demand for copper pipes. Copper is a trusted and reliable material that air conditioning installers have been using for many years and, not only that, it’s also infinitely recyclable – making it a sustainable alternative to materials like plastic. Grant Program and Government Funds Available for HVAC Improvements A $500 million grant program seeks to upgrade the infrastructure of U.S. schools, including improving HVAC systems. Many schools rely on outdated HVAC systems that make classrooms less comfortable and may pose health risks. The U.S. Department of Energy (DOE) is launching the grant program to lower energy costs, improve air quality and prioritize schools most in need. Disposable Cylinder Ban Looms, And Impact on HVAC Will Be Stark Among the requirements of the American Innovation and Manufacturing (AIM) Act of 2020 is a ban on disposable, single-use cylinder tanks used to transport refrigerants through the supply chain to an HVAC installer. A final rule posted by the Environmental Protection Agency (EPA) on October 5, 2021, will prohibit the use of disposable cylinders in the next several years. HVAC installers use the disposable cylinders every day to transport hydrofluorocarbon (HFC) refrigerants including R32 and R410A. The Role of Hydrogen in Achieving Net-Zero By 2050 Some of the solutions currently being evaluated include the use of hydrogen as a replacement fuel Some 38% of greenhouse gas emissions emanate from residential housing, specifically heating and cooling systems. Given the goal of 'net-zero' carbon emissions by 2050, new approaches have emerged to achieve that target. Some of the solutions currently being evaluated include the use of hydrogen as a replacement fuel, to store electricity from solar or wind power, or in fuel cells that use an electrochemical process combining hydrogen and oxygen to produce electrical energy and water. Considering The Advantages of Heating and Cooling ‘As A Service’ 'As a service' is a familiar pattern in business today, especially in the technology arena. 'Software as a Service' is as common as Microsoft Office 365, and companies have been providing services, such as telephony and internet access for decades. 'As a service' is a familiar pattern in business today, especially in the technology arena But how can the model be applied to the HVAC market? It’s not a common approach today, but the benefits of applying “As a service” to HVAC are many – for customers and for equipment and service providers. Notably, an ‘As a service’ approach can help customers sidestep the higher costs of transitioning to more expensive green technologies, thus accelerating the green trend and avoiding pollutants and greenhouse gases. Summer Increases Demand for HVAC Services, Often to Breaking Point High outdoor temperatures are a great indicator of demand for HVAC services, and HVAC companies are feeling the heat as they struggle to meet higher demand for services even as they face unprecedented supply-chain challenges and a critically tight labor market.  HVAC contractors across the country agree that demand this summer is higher than ever. The phones are ringing off the hook, and HVAC employees are working long hours just to keep up. Some are working 12-hour days and on the weekend. The situation is basically ‘all hands on deck.’

The HVAC market is at an inflection point, in the throes of switching refrigerants to meet regulatory goals, improving energy efficiency to meet more stringent standards, and struggling with supply chain issues. What the industry needs is a new technology at the nexus of environmental issues and energy conservation, enabling the drive away from fossil fuels and toward zero-carbon emissions. Blue Frontier is working to bring such a system to market with a core air conditioning/energy storage technology that integrates desiccant-enhanced indirect evaporative cooling, thermochemical energy storage, and an efficient converter for transforming renewable electricity into heat. ultra-efficient air conditioning The company is seeking to commercialize the new concept of ultra-efficient air conditioning. From Blue Frontier’s world headquarters in Boca Raton, Fla., 30 employees are working to advance the technology from the lab to the field, focusing on design for manufacturability. Proven in the lab, the technology will be validated at scale and then manufactured reliably. Founded in 2017, Blue Frontier has licensed patents from the National Renewable Energy Laboratory and seeks to advance and transform a Technology Readiness Level 5 prototype into a fully commercialized and manufactured system. air dehumidification After proving the technology to the industry, Blue Frontier could license it to other manufacturers. The technology involves regeneration, which heats a desiccant (a proprietary salt solution) to increase its concentration by emitting water into the atmosphere. As water is driven from the concentrated solution, it is ready to do the work of air dehumidification (absorbing water from the air) and is available for air conditioning. concentrated solution When air conditioning is needed, the concentrated solution is placed in contact with air via indirect evaporative cooling The concentrated desiccant is stored in a plastic tank, where it remains ready to use in the air conditioning process when necessary; in effect, it is stored energy in the form of "dehumidification potential." The desiccant (salt solution) has no impact on the environment or human health. When air conditioning is needed, the concentrated solution is placed in contact with air, which it dehumidifies, enabling temperature reduction via indirect evaporative cooling (dew-point style cooling). 50 to 90% electricity reduction The system separates and independently controls humidity and temperature. It provides up to 100% fresh air ventilation. Thermal energy storage enables load shifting. In effect, the system decouples the direct relationship between the temperature outside and the electricity needed by an air conditioning system. In terms of electricity bill savings, Blue Frontier offers a 50 to 90% reduction in electricity usage and a 98% reduction in peak demand. transformational approach The new approach saves energy, reduces peak demand, and does not rely on refrigerants. A drop-in replacement for technology in a 100-year-old market, it is 300% more energy efficient than vapor compression and eliminates the use of refrigerants. Unlike the lighting market, for example, air conditioning efficiencies have not improved and are ripe for a transformational approach. HVAC technology “As the world becomes hotter and more humid, our system allows people to increase the use of air conditioning without contributing to global warming,” says Greg Tropsa, Blue Frontier’s Executive Vice President for Business Development. “The system works in all climate zones, and the hotter it gets, the more cooling capacity it provides, which is the opposite of vapor air systems.” The technology evolved from a 2009 Department of Energy grant seeking to mitigate the threat of anthrax using HVAC technology. Using liquid desiccants dries the air and eliminates the growth of spores of a variety of air pathogens. The cooling benefits of the approach evolved as the technology was developed. air-conditioning energy EIA projects that air-conditioning energy use will grow faster between 2022 and 2050 The U.S. Energy Information Administration (EIA) projects that air-conditioning energy use will grow faster than any other use in buildings between 2022 and 2050. In fact, by 2050, the global consumption of energy for air conditioning will equal the combined total electricity consumption of India and China currently. The growth is not sustainable with current technologies. rooftop units Blue Frontier’s initial manufactured products will be rooftop units in 5-ton to 20-ton sizes. Paving the way to growth are installation first costs that are low or equivalent to the market today, achievable while providing incremental benefits. “It is almost impossible for technologies to make it to scale,” says Tropsa. “This has all the earmarks of being able to achieve that.” Series A financing Blue Frontier recently raised a $20M Series A equity investment led by Bill Gates-founded Breakthrough Energy Ventures, 2150 Urban Tech Sustainability Fund, and Volo Earth Ventures. Blue Frontier's commercialization and manufacturing partner, Modern Niagara, also participated in the funding round. The Series A financing will accelerate Blue Frontier's ability to bring its product to market, propelling the company towards its goal of creating gigaton reductions in greenhouse gas emissions by decarbonizing building cooling. Reducing carbon footprint Between 2022 and 2024, the company will be seeking to install tryout systems at early-adopter companies The timeline for introduction and commercialization is early 2024 when Blue Frontier will seek to unveil its product at the AHR show. Between 2022 and then, the company will be seeking to install tryout systems at early-adopter companies. “Today we are looking for early adopters who have high sustainability goals and public commitments to reduce their carbon footprint,” says Tropsa. Performance  During 2023-2024, the company will release a limited number of units (1,000) to prove its performance. In the 2024-2025 timeframe, they will accelerate market penetration by working with utility companies seeking to lower electricity usage. Electric utilities are attracted to the technology as a “non-wire alternative,” (NWA) a route to lowering energy demand rather than having to build more capacity. The desiccant is recharged and stored when electricity is the cleanest or lowest cost, and later used to deliver cooling when electricity is dirty or costly. Saving money Customers save money on electricity bills, decarbonize their systems, and reduce the impact of air conditioning on the environment. Air conditioning in buildings is responsible for 10% of greenhouse gas emissions (including energy usage and the impact of refrigerants).  Blue Frontier's systems address every major issue associated with present-day air conditioning with a ground-breaking replacement for Packaged Rooftop Units that dominate the commercial buildings air conditioning market:  Eliminates high Global Warming Potential ("GWP") refrigerant with liquid desiccant technology. Dramatically reduces AC electrical consumption by 50-90% depending on weather and usage. Eliminates peak electrical demand by integrating energy storage with a proprietary saltwater solution, which allows AC to intelligently store and use excess renewable energy. Enables early replacement of traditional ACs with HVAC-as-a-Service, a business model designed to speed market adoption by removing capital investment requirements.

When Harry Lau, Administrator for Facilities and Operations for the Livonia Public Schools, joined the district in 2013, he identified a significant need to improve the HVAC equipment throughout the entire school system. All 25 buildings, including schools and administration offices, had significant inefficiencies with their HVAC systems. The infrastructure was outdated and the horizontal unit ventilators that were in use were from the 1950s and 60s and were well beyond their life expectancy. The old units were prone to freezing, and there were control issues that further exacerbated the problem. Poor indoor air quality (IAQ) and inefficient temperature controls led to discomfort among staff and students, impacting the overall learning environment. His primary goal was to reduce the number of environmental air quality concerns, reduce district utility and maintenance costs, and improve the overall comfort and air quality throughout the system. The Solution To address these issues, Livonia Public Schools secured funds via a successful bond measure To address these issues, Livonia Public Schools secured funds through a successful bond measure. There were multiple contractors and manufacturers involved for the entire system upgrade, but for the classrooms specifically, the district chose to upgrade to Airedale by Modine Classmate® vertical units. Looking at the specifications of these units, Harry was certain the Classmate® would meet their needs.  The previous units had structural and design issues that led to multiple repairs, and Harry knew that they would have fewer maintenance issues with the Classmate® because of the way they are designed. They also chose to modernize control of the system by implementing a building management system allowing for real-time monitoring and centralized management of the HVAC systems across all buildings. The Results The HVAC system upgrades have resulted in dramatic improvements in IAQ and energy efficiency. The new systems have provided better temperature control, faster cooling, and heating, and have reduced energy consumption by 20%. The upgraded systems also led to a quieter environment, enhancing the learning experience. The ability to monitor and manage the HVAC systems in real time has allowed for proactive maintenance and further cost savings. Harry said he wanted the classroom instructors to have some anonymity with temperature control. While the set points follow ASHRAE recommendations, the units are equipped to give the teachers some control to bump the temperature up or down a few degrees to suit their comfort level and those of the students.  "With partners like Modine, they opened our eyes on ways of doing things," said Harry Lau, adding "It has been refreshing to actually be heard by the professionals." Implementation of HVAC upgrades Livonia Public Schools has been recognized by the U.S. DOE’s Efficient and Healthy Schools Program Because of their commitment to improving IAQ and energy efficiency, Livonia Public Schools has been recognized by the U.S. Department of Energy’s Efficient and Healthy Schools Program. This program recognizes and assists school districts seeking to implement high-impact indoor air quality and efficiency improvements. They were honored for optimizing their operations to improve building performance. The district was also recognized by the city as a green energy partner. Harry said that the classroom learning environments have been dramatically updated and they have seen a significant improvement. The consistent modulation of the fresh air has been greatly noticed. Livonia Public Schools’ proactive approach to HVAC upgrades A huge point of pride for the district was being able to confidently inform their staff and parents that they were ahead of the curve in ensuring quality indoor air once students and staff were able to return to indoor classroom learning during the COVID-19 pandemic.  Livonia Public Schools’ proactive approach and successful implementation of HVAC upgrades have set a benchmark for other districts aiming to improve their learning environments through better air quality and energy efficiency.

Kepier School's phased transition to low-carbon CIAT heating technologies has delivered generous energy savings within a year of installation. CIAT worked with partners to initiate the school’s journey to net zero in 2022, returning to measure performance and optimize the system. CIAT is a part of Carrier Global Corporation, a global pioneer in intelligent climate and energy solutions. New high-efficiency heat emitters CIAT worked with BREng Hull Ltd, AA Projects, Quora Group, and Cool Designs Ltd to create a phased decarbonization plan for Kepier School in Northeast England, aided by the Condition Improvement Fund (CIF). Recognizing the challenges faced by many schools, Oliver Sanders, Carrier Commercial HVAC Director, United Kingdom, and Ireland, said, "For schools with new gas boilers aiming to reach net zero, it's most cost-effective to integrate them into a modernized heating infrastructure, ready for the next transition phase to heat pumps when the boilers reach end-of-life." Project featured a heating audit The project involved a heating audit identifying the need for new high-efficiency heat emitters The project involved a heating audit identifying the need for new high-efficiency heat emitters. Conventional radiators were replaced with seven surface-mounted high-level CIAT MajorLine and 31 CIAT COADIS fan coil units (FCUs). The seven gas boilers installed in 2019 were integrated into the new system's infrastructure, enabling them to be replaced as required to improve system efficiency and cost savings. Sizeable energy savings A subsequent review revealed sizeable energy savings. Gas usage was compared before and after the pandemic to avoid skewed data due to COVID-19 school closures. Findings revealed an 8.6% reduction of 2,824 m3 (~31,446.41 kWhr) from March 2022 to March 2023 compared to the period from March 2019 to March 2020. This achievement reduced the school’s carbon footprint and resulted in an 8% annual cost saving of ~£800 (average based on gas price fluctuations between March 2019-2020 and March 2022-2023). CIAT project partners BREng Hull  CIAT project partners BREng Hull and installer Quora Group returned to the school to optimize system operating gains Following commission, CIAT project partners BREng Hull and installer Quora Group returned to the school to optimize system operating gains.  "The process doesn’t stop once a solution has been designed, installed, and commissioned," said Rob Smelt, Managing Director of BREng Hull, adding "Experience shows that there are often significant additional gains to be made by optimizing the system in light of its real-world operation." The inspection revealed that some areas were imbalanced while others operated at sub-optimal temperatures. These issues were addressed to improve occupant comfort and reduce energy use and running costs. Carrier’s 2030 ESG Goal "The comfort level has improved significantly," said Brian Dixon, Kepier School Estates Manager, adding "We already gained control over specific rooms and areas, as opposed to the old ‘on or off’ heating system, and the latest work seems to have improved things even more. Future phases in our decarbonization plan will yield even greater energy and cost savings for the school." BREng Hull worked closely with equipment supplier Cool Designs Ltd during the scoping and specification stages, supported by CIAT application specialists. Projects like these contribute to Carrier’s 2030 Environmental, Social and Governance (ESG) Goal of reducing its customers’ carbon footprint by more than one gigaton.

To adequately heat the 111 Murray Street residential skyscraper in New York, the owner sought an effective way to maintain the aesthetic of the mostly glass building without being obtrusive to its design. Custom convection style heaters, mounted in the building’s millwork by Faber Industrial Technologies, proved to be the game-changing resolution. Residential And Commercial Applications “Convection heaters provide warmth and heat to a specific area or room by circulating air and heating it using a highly efficient electric element,” explained Andrew Martin, Manager of Product Management with Marley Engineered Products. Andrew Martin adds, “Designed for quiet, controlled comfort, they are ideal for both residential and commercial applications, including living rooms and bedrooms, offices, hallways, lobbies, conference rooms, retail stores, and buildings with floor-to-ceiling windows.” Installing Heaters While Maintaining Aesthetics Due to mechanical constraints exacerbated by the building’s slim design, hot water was not available Located in the Financial District and Tribeca neighborhoods in Lower Manhattan, 111 Murray Street is a 792-foot-tall residential skyscraper with 156 luxury condominiums and 2,100 square feet of retail space on the ground floor. Due to mechanical constraints exacerbated by the building’s slim design, hot water was not available in most of the upper residences, rendering hydronic heating systems impractical. Berko ASL3 convector heaters Therefore, the client requested Berko ASL3 convector heaters from Marley Engineered Products to be installed for elegant, supplemental comfort for heat loss, condensation prevention, and continuous warmth throughout each condo. The challenge, however, came from their preference to keep the heaters hidden for aesthetic reasons. Custom design “The varying heights and angles of the millwork in each condo limited our ability to install the heaters directly where we wanted them,” said Christopher Smith, a Heater Manufacturing Representative with Faber Industrial Technologies. He adds, “Therefore, we needed a custom design that enabled us to mount the heaters properly while also keeping them out of sight.” Delivery of convector heaters Another issue was revealed when the contractor requested the materials be delivered to each floor Another issue was revealed when the contractor requested the materials be delivered to each floor. Working in tandem with Technical Air Systems, Inc., a regional supplier of HVAC equipment to the metropolitan New York and New Jersey areas, Marley Engineered Products’ customer service and shipping teams were instrumental in coordinating the delivery of the convector heaters in a congested lower west side intersection between West Side Highway and Murray Street. Hidden Heat For Unmatched Comfort And Elegance The solution involved fabricating and supplying custom dual inlet convector heaters, which were then mounted within the millwork of each condominium unit. Using a thermocouple array, the engineering team at Marley tested the Berko ASL3 connectors, at 125 watts per foot and 120V inside a customer-supplied demo millwork section sent from New York City.  After making some adjustments to the design, thermal couplers were utilized on both the heaters and their enclosures to ensure their surface temperatures were within Marley Engineered Products’ limits to pass a UL site inspection. Invisible solution Next, Smith coordinated with the electrical and mechanical contractors on-site to fit the heaters into each condo’s temperature control system using power relays. The result was an 'invisible solution' in which none of the controls or heaters could be seen in the residential units. Seamlessly blending functionality and aesthetics Innovation and collaboration converged as we tailored a custom heating solution" “Innovation and collaboration converged as we tailored a custom heating solution, seamlessly blending functionality and aesthetics,” explained Smith, adding “In fabricating this ‘invisible solution’ for the client, our dedicated team and the coordination of skilled contractors transformed these condos into spaces that harmonize comfort and elegance and exemplify the blending of form and function.” UL evaluation The success of the project not only resulted in an extremely satisfied customer but also left the contractors pleased with the uninterrupted delivery and installation of the heaters. They were further impressed when the custom heater and millwork system passed the UL site inspector's test after just one evaluation.  2023 Jim Herring Memorial Silver Fox Award To acknowledge the innovative approach and exceptional achievements demonstrated by the Faber team in overcoming the challenges faced during this project, Marley Engineered Products awarded Smith the 2023 Jim Herring Memorial Silver Fox Award at its recent national sales meeting. “This award for excellence in solution design embodies the spirit of Herring, who was always up for a challenge and most happy when solving a unique heating or ventilation problem,” said Sean Pesce, Acting Director of Sales for Marley Engineered Products, adding “Chris and his team perfectly captured Jim’s talent for finding creative solutions to the most complex issues and left a lasting impression on the client.”

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

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

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

For schools, improving indoor air quality (IAQ) is a basic function of HVAC systems, which also ensures a high comfort level for students, teachers and staff. Schools can be a lucrative market for HVAC systems, but there are challenges, such as long sales cycles and the lingering impact of the COVID-19 pandemic. We asked our Expert Panel Roundtable: What are the challenges for HVAC in serving the education/schools market?

The practice of working from home soared during the coronavirus (COVID-19) pandemic and many observers see a likely continuation of the trend, as infection risks gradually subside. Both environments – home and office – depend on HVAC systems to keep occupants comfortable (and safe!). Therefore, the industry stands to be impacted whichever way the trend plays out. We asked our Expert Panel Roundtable: How will remote working affect residential and commercial HVAC?

The Internet of Things (IoT) is the network of physical objects embedded with sensors, software and other technologies to facilitate connecting and exchanging data with other devices and systems over the internet. Use of the IoT is expanding among both business and residential applications. However, there are hurdles to overcome, including security, privacy and networking challenges. As more HVAC devices embrace the IoT, we asked our Expert Panel Roundtable: What is the impact of the Internet of Things (IoT) on the HVAC market?