Government Regulations

Nidec Global Appliance’s booth at AWE 2025 - one of the world’s largest home appliances and consumer electronics trade shows - held from March 20 to 23, 2025, in China, was the stage for the launch of the new Embraco residential refrigeration compressor: the Embraco Atom. It stands to be the most compact variable-speed compressor for residential applications on the market, designed to democratize this energy-efficient technology. The product was granted the AWE Innovation Award during the event. Range of refrigeration applications Weighing just 2.5 kg and measuring less than 110 mm, it is 30% lighter than Embraco’s previously most compact compressor, the FMS. It was designed to be competitive enough to accelerate the migration from fixed-speed to variable-speed technology, being accessible to a wide range of refrigeration applications, from premium models to single-door refrigerators and beverage coolers. Crucial role in transformation Weighing just 2.5 kg and measuring 110 mm, it is 30% lighter than Embraco’s previous compressor Alberto Casnati, President of Nidec Global Appliance, explains, "There is a growing global push for increased energy efficiency, driven by economic, social, and environmental motivations, and variable-speed technology plays a crucial role in this transformation, especially in refrigeration appliances. This technology enables compressors to adjust their speed based on demand, resulting in significant energy savings compared to traditional fixed-speed systems." He adds, "The Atom was developed as a global platform to support the widespread adoption of variable-speed technology, and our initial key markets include China, Europe, and India. At the same time, Atom has been meticulously engineered to lead in sound performance, both in terms of sound level and sound quality." Benchmark for low-noise compressors Alberto Casnati continues, "It also sets new standards for compactness, allowing more usable space inside the appliance, a key benefit for maximizing food storage. Thanks to its innovative and space-efficient design, Atom is setting a new industry benchmark for low-noise compressors." Energy consumption regulations The product runs on natural refrigerant R600a, and has a coefficient of performance of up to 1.90W/W The product runs on natural refrigerant R600a, and has a coefficient of performance of up to 1.90W/W, an indicator of its energy efficiency that shows it is capable of meeting the most stringent energy consumption regulations of any region in the world. Its efficiency level allows the Atom to reduce energy consumption by more than 25% compared to a traditional fixed-speed compressor. Innovative technical solutions The Atom features innovative solutions to meet bold design targets of size, low noise, and energy efficiency established in its research and development process. One of them is the polymeric discharge line, which replaces the traditional metal discharge tube, allowing the reduction of the compressor’s size, as well as decreasing heat dissipation, vibration, resonance and noise, without compromising performance. “Making such a small compressor is an engineering challenge. And we are reducing the size without affecting reliability, efficiency, capacity or robustness,” summarizes Alberto Casnati. Standard market compressors The Atom comes with an ultra-compact inverter, which is the component that controls speed Another technological breakthrough is the electronic component. The Atom comes with an ultra-compact inverter, which is the component that controls the compressor’s speed. This specific model is capable of intelligently extracting peak performance from the compressor and actively controlling its vibration levels, making it more silent. The Atom reduces up to 5 dB compared to standard market compressors. Interior space in the refrigerator The small size has additional advantages linked to logistics, such as allowing twice as many compressors per pallet versus market alternatives, which reduces emissions caused by transportation, and demands less storage space. It also reduces resource consumption during production. Another positive outcome of such a compact compressor is to maximize interior space in the refrigerator and allow more design flexibility to appliance manufacturers, even for special applications, such as two compressor systems or refrigerated drawers.

Navien UK, a pioneering provider of heating and hot water solutions, has expanded its exclusive partnership with Ultimate Renewables Supplies to include the distribution of its new PEM750 heat pump. Navien UK partnered with APP Wholesale Ltd in 2024 to bring its full line of heating and hot water products to regional and national merchants across the UK. Navien’s low-carbon technology The addition of the PEM750 further strengthens this established relationship, providing installers The addition of the PEM750 further strengthens this established relationship, providing installers and merchants across the UK with seamless access to Navien’s latest low-carbon technology. As part of its expanded offering, Ultimate Renewables Supplies, a division of APP Wholesales LTD, will provide training on Navien products, to help installers get up to speed with the PEM750. Navien’s renewable heating offering Additionally, Ultimate Renewables Supplies will support in system design and supply complete kits for installation. They will also assist installers through their MCS Umbrella scheme and provide ongoing service for the systems they design. The PEM750 heat pump represents a key step forward in Navien’s renewable heating offering. Engineered for performance, ease of installation, and smart control, it brings clear benefits to both installers and end users — without overcomplicating the job on-site. Low-carbon heating PEM750 heat pump represents a key step forward in Navien’s renewable heating offering Simon Whysall, director of business development at Navien UK, said: “APP has been a valued and trusted partner, with a deep understanding of the trade." "Extending our relationship to include the PEM750 heat pump was a natural progression, and we’re confident this will help more installers bring efficient, low-carbon heating to their customers.” Demands of heating professionals Shane Knight, commercial director at APP Wholesales LTD, added: “We’re proud to partner with Navien on the launch of the PEM750 – a robust, precision-engineered product designed to meet the demands of heating professionals nationwide." "Together with our colleagues at Ultimate Renewables Supplies, we’re excited to bring this exclusive offering to the UK market, backed by the trusted service and comprehensive support our customers rely on." Navien’s product registration platform To mark the launch, Navien is offering 450 Navien Choice Plus points for every PEM750 heat pump registered until 31 March 2026.  The promotion is open to installers who register their installations through Navien’s product registration platform.

The latest CIBSE-approved CPD from Ideal Heating Commercial – the UK’s market pioneer of high efficiency commercial heating solutions – is focused firmly on the modern plant room. It addresses plant room surveying, along with the evolution of the plant room and heat source technology over recent years, brought about, in part, through legislation and product innovation. heating system replacement New CPD concentrates on modern, energy-efficient plant room retrofits using heat pumps ‘Surveying the modern plant room - from boilers to heat pumps’ CPD provides invaluable advice on the various stages involved in surveying a plant room; from assessment and the requirements for a replacement heat source, through to the potential risks associated with heating system replacement and how to identify these. With Ideal Heating Commercial pioneering practical solutions for decarbonizing commercial heating, the new CPD concentrates on modern, energy-efficient plant room retrofits using heat pumps. Heat pumps with gas boilers Hybrid systems, which include heat pumps with modern condensing gas boilers as a back-up, are also addressed as an alternative solution where heat pumps alone are not feasible. The new CPD also looks at the latest legislation and regulations, and touches on best practice when commissioning. Surveying the modern plant room New CPD is suitable for all levels of mechanical engineers from graduate through to senior This new CPD, ‘Surveying the modern plant room - from boilers to heat pumps,’ is suitable for all levels of mechanical engineers from graduate through to senior, director and associate, sustainability engineers, building services engineers, engineering technicians, incorporated engineers, chartered engineers and YEN Young Engineers, as well as building contractors and consultants. Commenting on the release of the new CPD, Richard Brown, Head of Specification at Ideal Heating Commercial, said: “With the heating industry undergoing change as we move towards decarbonization, how we approach and survey a plant room must also be modified." Decarbonize heating systems Brown added: "Our new CPD addresses the requirement to decarbonize heating systems and improve energy efficiency from an understanding that, in many circumstances, heat pumps alone may not be viable, and we may need to consider a hybrid approach."  "The CPD helps engineers to look at the overall plant room and decide upon the most effective approach.” Latest industry developments This latest CIBSE-approved CPD joins Ideal Heating Commercial’s expanding collection of educational resources, which cover the latest industry developments and provides advice on new ways to add value, performance and efficiency to customer heating projects.  Further CPDs address low-carbon systems, heat networks and heat interface units, heat pump refrigerants, and boiler heat exchanger materials. CPDs are delivered by Ideal Heating Commercial’s specification team managers either online or in person nationwide.

Teledyne Gas & Flame Detection (Teledyne GFD) is making its final preparations for a trio of forthcoming energy sector events taking place in Europe and Asia. Visitors to the Teledyne GFD booth at All Energy 2025 (Glasgow, UK, 14-15 May), World Hydrogen Summit 2025 (Rotterdam, Netherlands, 20-22 May) and World Gas Congress 2025 (Beijing, China, 19-23 May) will learn for themselves the advantages of tapping into sector knowledge and solutions that stem from decades of empowering safety in all forms of power generation. Key for these events will be Teledyne GFD’s hydrogen detection expertise and technologies. low-carbon energy and renewables event The All-Energy exhibition and conference is the UK’s largest low-carbon energy and renewables event, with hydrogen among key focus areas regarding both grid integration and battery energy storage systems (BESS).  Hydrogen is produced in BESS systems during the charging and discharging process of the batteries, or if a fault occurs that leads to thermal runaway. Once initiated, thermal runaway will likely result in a fire, but with the right detection technology it is possible to contain the consequences. Spyglass™ Xtend triple-infrared flame detector Integrated high-definition CCTV video delivers clear, rapid imaging of fuel fires like gasoline and jet fuel On stand B39, Teledyne GFD, which has its UK manufacturing facility just 8 km west of Glasgow in Renfrew, will be shining the spotlight on four key technologies. The recently introduced Spyglass™ Xtend triple-infrared flame detector offers the simultaneous detection of both hydrogen and hydrocarbon fires. It boosts safety in environments where hydrogen flames can spread to co-located systems or nearby equipment and start fires involving hydrocarbon fuels that are invisible to a hydrogen-only detector. Integrated high-definition CCTV video delivers clear, rapid imaging of fuel fires like gasoline and jet fuel, while the near-IR video option detects fires caused by hydrogen and methanol, making it ideal for BESS applications. Five selectable sensitivity levels are available. Utility grid integration projects Other instruments of note at All Energy 2025 will include the tried and tested GD10P infrared (IR) gas detector, as well as the GS700-Hydrogen, a high-performance and highly flexible all-in-one instrument that is able to detect both hydrogen and natural gas in utility grid integration projects. Fully ATEX-certified instrument means utilities can quickly determine the source of gas leaks Whether it is 100% hydrogen, hydrogen blends, or natural gas, the portable GS700-Hydrogen simplifies gas detection in applications that include outdoor/indoor leak detection, purging, barholing, and pipeline gas testing. Providing both safety and peace of mind, the fully ATEX-certified instrument means utilities can quickly determine the source of gas leaks, saving valuable time and reducing detection-related costs such as unnecessary excavations. Teledyne GDCloud’s capabilities Also on show will be Teledyne GDCloud™, a user-friendly new cloud solution that enhances gas detection measurement by recording hazardous events. Users can take advantage of this technology to help ensure regulatory adherence and streamline safety programmes. Among Teledyne GDCloud’s most powerful capabilities is visualizing detailed gas sensor readings from field sessions. Users can trace the route that a technician takes during investigations via advanced location mapping functionality. This capability enables breadcrumb mapping to identify the exact locations that correspond to gas readings logged by the detector. Teledyne GFD’s expertise Users can also interact with dynamic charts and tabulated data displays to reveal further insights Users can also interact with dynamic charts and tabulated data displays to reveal further insights into field activity and events. The same four technologies will also take center stage at the World Hydrogen Summit 2025, where visitors will find Teledyne GFD at booth A93. In fact, such is Teledyne GFD’s expertise in the hydrogen arena that it has been invited to deliver a presentation at the event entitled ‘Regulatory Framework and Compliance along the Hydrogen Value Chain’. Future gas detection challenges At World Gas Congress, a flagship gas and energy industry event staged once every three years, Teledyne GFD will again present these technologies to visitors from booth Z12 in hall D. A team of local experts will be present to discuss current and/or future gas detection challenges. Further reflecting its strong global presence, Teledyne GFD will also take booths at two events in the United States during May: AGA (American Gas Association) 2025 on May 4-8 in Aurora, Colorado; and OTC (Offshore Technology Conference) 2025 on May 5-8 in Houston, Texas.

Ziehl-Abegg Inc. proudly announces that Carmen Deese, Director of Human Resources, has been named one of Triad Business Journal’s Outstanding Women in Business for 2025. This prestigious recognition honors women in the Triad region who demonstrate exceptional leadership, vision, and impact in their industries and communities. Ziehl-Abegg’s rapid growth Deese was formally honored at a ceremony held on April 23, 2025, where she joined a distinguished group of professionals recognized for breaking barriers and driving meaningful change across business, government, and nonprofit sectors. In her role at Ziehl-Abegg, Carmen has been instrumental in building the North American HR infrastructure to support the company’s rapid growth. Her leadership was pivotal during the opening of Ziehl-Abegg’s new North American headquarters in Winston-Salem—a facility that represents the company’s single largest global investment to date. Prior roles of Carmen Carmen has championed a culture of inclusivity, mentorship, and continuous development Beyond organizational growth, Carmen has championed a culture of inclusivity, mentorship, and continuous development. She created and implemented workplace policies that support the whole employee—including expanded parental leave, a floating holiday, and other family-friendly benefits—which led Ziehl-Abegg to earn Family Forward NC Certification in 2024.  That same year, her commitment to shaping a supportive and forward-thinking workplace earned her the inaugural HR Impact Award from the Triad Business Journal. Through these initiatives, she has strengthened employee engagement, enhanced workplace culture, and helped position Ziehl-Abegg as an employer of choice. Carmen’s passion for workforce  “Carmen’s passion for people and her ability to build systems that empower our workforce make her an extraordinary pioneer,” said Jimmy Mitchell, Managing Director of Ziehl-Abegg Inc. “We’re incredibly proud to see her honored for the lasting impact she’s making not just within our organization, but across the region.” Reflecting on the award, Carmen shared: “It’s a privilege to be recognized among such a remarkable group of women. I’m proud to work for a company that values innovation and people equally—and that’s where transformation happens.” Carmen’s leadership In addition to her volunteer work, Carmen frequently serves on local business and industry panels Carmen’s leadership extends beyond Ziehl-Abegg. She is deeply committed to giving back to the community, volunteering with organizations such as the Kellin Foundation, which supports mental health and resilience, and the Choral Arts Collective, where she contributes to fostering arts and culture in the Triad. In addition to her volunteer work, Carmen frequently serves on local business and industry panels, advocating for initiatives that strengthen the regional talent pipeline and bring critical workforce development topics to the forefront. Carmen's continued commitment Through her community engagement, she continues to champion broader access to education, career growth, well-being, and cultural enrichment across the region. Ziehl-Abegg congratulates Carmen on this well-deserved honor and celebrates her continued commitment to shaping a stronger, more inclusive manufacturing workforce.

Saudi Arabia will host the inaugural World Stadiums and Arenas Summit (WSAS) from April 29–30 at the Mandarin Oriental, Al Faisaliah, Riyadh, marking a significant milestone in the Kingdom’s mission to become a pioneer in sports infrastructure and mega-event hosting. Held in association with Saudi Green Building Forum, the flagship event is set to welcome over 1,000 international industry leaders, decision-makers, and professionals, alongside 100+ exhibitors from more than 50 countries. The Summit will serve as a global platform to unveil cutting-edge innovations and set strategic priorities for the stadiums and arenas ecosystem. How stadiums and arenas are designed “Green sports infrastructure is no longer a vision for tomorrow—it is the foundation of today,” said Faisal AlFadl, Secretary General of the Saudi Green Building Forum. “We lead the evidence-based transformation of how stadiums and arenas are designed, constructed, and operated in line with the highest sustainability standards. As Saudi authorities ascend to global prominence in sports, our commitment ensures these venues not only host champions, but magnify their potential." "This is about more than buildings—it’s about aligning ambition with action, bringing stability where there was uncertainty, and creating a future where every athlete is supported, every event is safeguarded, and every legacy is sustainable.” Key topics including sustainable and eco-friendly construction The two-day conference will feature over 45 influential voices from the fields of global design, architecture Designed to accelerate progress in line with Saudi Vision 2030, WSAS underscores the Kingdom’s ambition to be a premier destination for global sporting events—including the AFC Asian Cup 2027, Asian Winter Games 2029, and FIFA World Cup 2034. The event attracted major support from pioneering strategic stakeholders from Government Authorities, Sporting Federations, Architects and developers, including Qiddiya, New Murabba, and knowledge partner EY. The two-day conference will feature over 45 influential voices from the fields of global design, architecture, operations, and venue management. Discussions will cover key topics including sustainable and eco-friendly construction, smart stadium technologies, energy-efficient design innovations, fan experience and digital engagement, and legacy planning for post-event use. How investment in infrastructure, innovation, and partnerships Confirmed speakers include Michael Dyke, CEO of New Murabba; Guido Fienga, CEO and Senior Advisor at Al Nassr/PIF; Eng. Mansour A. Almokbel, CEO of Saudi Motorsport Company; Shireen Hamdan, Senior Principal at Populous; and Barry Bremner, Executive Director of Sports Strategy at Qiddiya. WSAS comes at a pivotal moment for the Kingdom. According to a Surj Sports Investments report, Saudi Arabia’s sports sector contributed $6.9 billion to GDP in 2023, with projections pointing to $16.5 billion annually by 2030. The Summit will spotlight how investment in infrastructure, innovation, and global partnerships is transforming the Kingdom into a central hub for world-class sports and entertainment. Saudi Vision 2030 Saudi Arabia’s sports sector contributed $6.9 billion to GDP in 2023, with projections “We extend our heartfelt gratitude to the Minister of Sport in Saudi Arabia for his visionary leadership in advancing the sports sector and for his unwavering commitment to bringing international games to our nation,” said AlFadl. “His efforts not only align with Saudi Vision 2030 but also foster a vibrant sporting culture that inspires future generations. We are excited to witness the transformative impact this will have on our community and the global sports landscape.” Benchmark for the stadiums and arenas industry Leila Masinaei, Managing Director of GM Events and WSAS, emphasized the Summit's strategic importance: “The launch of the World Stadiums and Arenas Summit is timely and critical. As Saudi Arabia builds world-class venues to meet its future ambitions, WSAS provides a collaborative forum to exchange knowledge, ignite innovation, and forge partnerships. We are honored to have the trust of the Supporting Partners and our Sponsors to make this the global benchmark for the stadiums and arenas industry.” The Summit is open exclusively to industry professionals, running from 8:00 AM to 5:35 PM on April 29, and 8:00 AM to 2:30 PM on April 30.

As demand continues to grow for sustainable, energy-efficient solutions in refrigeration and heating, both Europe and North America are navigating a rapid transition toward natural refrigerants. There is a strong demand for new CO2 systems, including heat pumps and various other applications. Higher capacity compressors with larger operating envelope, such as Danfoss’ Bock HGX56 CO2 T series, will play a critical role in supporting this growing need. Air to water heat pumps As shown in Figure 1 and Figure 2 below, the larger operating envelope of up to 77°F and 65 bar on the suction side can improve the COP by approximately 15% for applications with higher heat source temperatures – for example, air to water heat pumps in summer conditions. Transcritical CO2 figure. Larger operating envelope of up to 77°F and 65 bar on the suction side. Figure 3 below shows a typical layout of a CO2 transcritical air-to-water heat pump for large systems, designed with features to boost efficiency. Such systems are already being built in Europe, with the largest compressor options, and used in heating capacities of up to 2.5 MW per rack. Layout of a CO2 transcritical air-to-water heat pump for large systems. Cooling and Heating Working Together Transcritical supermarket applications with heat reclaim are very suitable for improving the version Transcritical supermarket applications with heat reclaim are very suitable for improving the overall refrigeration system performance. It is a highly efficient and resilient solution that provides simultaneous heating and cooling by recycling waste heat energy within the store. More than 2,000 installations across Europe and in other parts of the world have shown that the traditional CO2 weaknesses in refrigeration applications, such as high temperatures and pressures, can be turned into profitable advantages when adding heat reclaim to the system. In fact, the operational costs can be reduced by more than 20% by replacing conventional heating sources with heat reclaim, and the pay-back time of the heat reclaim installation is typically short, less than 2.5 years. At the same time, huge carbon savings can be made when the system is installed and maintained correctly. Additional Applications Transitioning to CO2 CO2 is increasing in popularity for cold storage and food processing, due to some challenges of using ammonia in states with a large number of regulations, as well as the desire for distributed systems when expanding plants and the advent of larger CO2 compressors. Some estimates show a 10% market transition to CO2 from ammonia and HFCs for systems up to 250 tons (880 kW). An example would be a cold storage facility requiring variable temperatures with stability/efficiency at partial load for garlic processing, storage and pre-cooling. The requirements for pre-cooling are 40°C/39.20°F, but for processing and final storage, −100°C/140°F is required. CO2 System Examples Single-stage transcritical CO2 applications are used in the field of medium temperature refrigeration Single-stage transcritical CO2 applications are used in the field of medium temperature refrigeration. They can be operated very efficiently, if the high pressure is operated in the subcritical range over a long period. Using the high-pressure side, it is appropriate to use the application in the transcritical range in combination with refrigeration, due to a large temperature glide and a relatively high discharge end temperature for specific heat pumps and the heat recovery. In CO2 applications in low and medium temperature refrigeration, so-called booster systems are used. High-pressure CO2 gas from the low-temperature compressor is discharged directly to the suction side of the second compressor stage. Different plant constructions of these Booster applications are used, for example, in supermarket applications. In a cascade system, different refrigerants are used in an application. They are combined in two refrigerating circuits that are separated from each other. The high temperature stage is used as a condenser in the CO2 application. It is possible to use different refrigerants like hydrocarbons, ammonia, and HFCs like R-134A. Keys to a Successful Installation Proper oil levels, adequate space for maintenance and ventilation, environmental conditions and surface setup with sufficient load-bearing capacity are all critical initial items to consider. Once these items have been considered and addressed properly, then you need to take extreme care during the soldering - cooling the valve body during and after and only using inert gas to inhibit oxidation products. The actual required pipe cross-section must be matched to the output. The tube must be sawed at a right angle with the angular tolerance being ±10. Pipes and system components must be clean and dry inside and free of scale, swarf and layers of rust and phosphate. Only use hermetically sealed parts. Lay pipes correctly. Suitable vibration compensators must be provided to prevent pipes being cracked and broken by severe vibrations. Ensure a proper oil return and keep pressure loss to an absolute minimum. Suction and discharge should be depressurized prior to connecting to the refrigerant system. Proper layout of the suction and pressure lines directly after the compressor is integral to the smooth running and vibration behavior of the system. Oil return function To ensure the oil return function will work reliably no matter what kind of system configuration you are using, Danfoss recommends incorporating oil separators or oil level monitoring equipment. For systems with long pipes and higher degree of contamination, a filter on the suction-side is recommended. When attaching accessories with an electrical cable, a minimum bending radius of 3x the cable diameter must be maintained for laying the cable. Voltage and frequency values Compare the voltage and frequency values with the data for the mains power supply Connect the compressor motor in accordance with the circuit diagram (see inside of terminal box). Compare the voltage and frequency values with the data for the mains power supply. Only connect the motor if these values are the same compressors marked in this way are suitable for direct or part winding start.  The motor winding is divided into two parts: part winding 1 = 50 % and part winding 2 = 50 %. This winding division reduces the start-up current during a part winding start to approx. 50 % of the value for a direct start. Reversed fields of rotation In the factory, as shown below in Figure 4, the motor is switched for direct starting (YY). For part winding start (Y/YY), remove the bridges and connect the motor feed cable according to the circuit diagram. The motor is switched for direct starting (YY). Failure to comply results in reversed fields of rotation and can cause motor damage. After the motor has started up with part winding 1, part winding 2 must be switched on after a maximum 1-second delay. Failure to do so can be detrimental to the service life of the motor. Ensure that power is supplied via QA2 to winding 1 (50%) (1U1/1V1/1W1) and via QA3 to winding 2 (50 %) (2U1/2V1/2W1). The motor contactors (QA2/QA3) are each to be rated for approx. 50% of the maximum operating current. Danfoss BOCK compressors Transcritical CO2 compressors, like the Danfoss BOCK product line, offer a wide span of capacities with up to 162 kW of cooling capacity (14°F/95°F/18R/60 Hz) and 420 kW of heating capacity (41°C/77°C (100 bar)/18R/60 Hz) for many different product applications, including food retail, heat pumps, district heating, industrial refrigeration and process heating, reversible chiller/heat pumps for HVAC, cold storage, chillers, and data centers. Low and medium temperature levels are available, with high stand still pressures. This high capacity reduces the need for multiple compressors, simplifying system design and reducing investment costs. The Danfoss BOCK compressors also feature a high-pressure rating of 130 bar in operation/150 bar at stand still on the high side and 65 bar in operation/100 bar at stand still on the low side.

“If you don’t like the weather in New England, just wait a few minutes.” To this day, Mark Twain’s quote is used to describe quickly changing weather conditions in regions throughout the United States, United Kingdom, and elsewhere. However, in contrast to the weather, the climate change being experienced globally is creating nontraditional conditions that are much more permanent. Consequently, HVACR systems are being subjected to a new set of conditions that, if not addressed properly, may significantly impact performance, efficiency, and lifespan.  Report from Climate Central 75% of the Earth’s land has become permanently drier over the last three decades Consider a few examples. According to a recent report from Climate Central, as a result of climate change, Michigan has nine fewer subfreezing days in winter. The European Union’s Copernicus Climate Change Service reported that the average temperature in the summer of 2024 in Europe was 1.54 C above the average between 1991 and 2020.  According to the United Nations Convention to Combat Desertification, 75% of the Earth’s land has become permanently drier over the last three decades, caused in part by declining humidity in some regions. Climate change impacts such as these have made it increasingly important for HVACR contractors to understand the ways new weather-related factors can challenge equipment performance and durability—and to help customers optimize the resiliency of their systems. Three main challenges To follow are insights and tips that can help contractors successfully “weather” three main challenges driven by climate change: extreme heat, high or low humidity, and extreme weather events.  As this information demonstrates, no matter how hot, dry, wet, or stormy your region has become, being proactive in system checks and maintenance can help customers’ systems run effectively, minimize repair costs, and ensure equipment operates through its expected lifecycle.  Climate-change impact one: extreme heat In extreme heat, parts such as compressors and condensers undergo more than the standard wear From potential leaks to higher energy bills, the need for air conditioners to run longer and harder to achieve desired cooling temperatures as temperatures rise can be literally and figuratively costly to your customer, a building’s occupants, and the environment. In extreme heat, components such as compressors and condensers undergo more than the standard wear and tear. If not properly maintained to meet rigorous demands, equipment may not be able to cool a space adequately. This means it will potentially consume more energy and increase energy bills. Equipment could also overheat, break down, require costly repairs, and reach end of life more quickly. In addition, higher temperatures, longer run times, and increased condensing pressure may lead to more leaks. Take these steps to help HVACR system owners overcome the challenges of extreme heat: Check air filters frequently and replace them as needed. Dust and debris can accumulate quickly in hot, dry weather. Perform comprehensive regular maintenance. This should include cleaning condenser coils and maintaining proper refrigerant levels. Optimize settings. Raising the thermostat slightly when daily temperatures peak can help reduce energy consumption and wear and tear on components. Work with facility managers to ensure proper building insulation. This can reduce heat gain and lessen the burden on air conditioning systems. Create shade for outdoor units and keep them clear of debris. Protection from direct sunlight can help maintain cooler operating temperatures. Climate-change impact two: humidity Indoor comfort and HVACR system performance depend on keeping the right humidity balance Indoor comfort and HVACR system performance depend on maintaining the right humidity balance. When humidity is too low, air is dry and static, leading to discomfort for occupants and potential issues with air quality and system operation. However, if humidity is too high, systems will have to work harder to remove moisture from the air while simultaneously providing the desired level of cooling. Take these steps in high-humidity situations: Keep tabs on moisture buildup and perform regular cleaning of components such as ducts, filters, and evaporator coils. Identifying and removing moisture accumulation can prevent damage from mold or corrosion. Ensure proper insulation of ductwork to help mitigate moisture buildup. Enhance dehumidification systems and make sure they are properly sized to handle specific humidity levels. Check air filters, blowers, condensate drains, and ductwork to ensure proper airflow. In low-humidity situations: Install humidifiers. Consider humidifiers that can be integrated with the heating/cooling system to achieve a consistent level of approximately 30% to 50% relative humidity. Perform regular humidifier maintenance, including cleaning and replacing filters, checking for mineral deposits, and ensuring all lines are clear. Ensure proper insulation of ductwork and seal any leaks. Perform regular maintenance checks of HVACR systems as noted above Climate-change impact three: extreme weather events It’s not unusual for extreme weather events—including intense thunderstorms, snowstorms, and windstorms—to cause power outages and surges, flooding, or high winds, all of which can physically damage HVACR equipment. To avoid system problems or, possibly, total system failure it’s important to assess damage as quickly and thoroughly as possible then implement the necessary repairs or replacements. Be sure in these situations to always prioritize technician safety and, where applicable, to obtain clearance from emergency responders.  Take these steps to support system resilience during extreme weather events: Conduct routine maintenance as noted in factors one and two above. Work with facility managers to ensure buildings have proper insulation and weatherproofing. Have emergency backup power sources in place. Ensuring continual operation during power outages is especially important for mission-critical systems. Best practices for routine equipment checkups One final point to consider on this topic is that employing the practices above can help reduce further contributions to the global warming that drives climate change. One example is taking steps to prevent refrigerant leaks. Another is energy conservation that can be achieved by systems that run at optimized efficiency. Even efforts to prolong the lifespan of systems can help decrease the waste of resources and other materials.  While “waiting a few minutes” may prevent someone from unnecessarily canceling a ballgame or picnic on account of rain, the HVACR industry needs to address the challenges of climate change “without delay” and for the foreseeable future. Continuing best practices for routine equipment checkups and maintenance, increasing system checks in climates that have become hotter, drier, wetter, or stormier than usual; and employing some new techniques can all work together to ensure resilient systems, satisfied customers, and a healthier planet.

It’s often said the only constant in life is change. In the HVACR industry, that phrase has been especially true. We saw another year of transitions in 2024 that included evolving efficiency and refrigerant regulations, changing corporate net zero targets, the continued emergence of advanced heat pumps, and the impact of artificial intelligence (AI) in building management.  Smart and sustainable Throughout these transformations, the industry continues to overcome challenges and innovate as we transform the places where people live, work, and play into smarter, healthier, and more sustainable spaces.    As we look toward 2025, we can expect to see a continued, industrywide focus on decarbonization, heat pump development, A2L refrigerants, and AI as regulations expand and new technologies emerge.    Decarbonization  Decarbonization continues to be a very high priority for both the residential and commercial sectors Decarbonization continues to be a very high priority for both the residential and commercial sectors. This focus has transformed the way we design and install HVAC equipment and has created tremendous opportunities for those who invest in educating themselves on the evolving technologies, regulations, and incentives. Today’s building professionals and homeowners have an unprecedented number of incentives available at the federal, state, and utility levels encouraging decarbonization transitions.  Digital and net zero services For example, tax credits such as 25C for consumers and 179D for commercial building owners were expanded under the Inflation Reduction Act (IRA) and can significantly reduce the upfront costs of high-efficiency equipment, creating a compelling offer to replace less efficient systems. In commercial buildings, combining high-efficiency HVAC equipment like electric heat pumps with digital technologies and net zero services can help empower organizations to optimize their buildings and subsystems for both the short- and long-term. Heat pumps  Heat pump technology has advanced significantly in recent years, providing an electrified, high-efficiency HVAC option for nearly all applications – even those operating within colder climates. The Department of Energy’s (DOE) Residential Cold Climate Heat Pump (CCHP) Technology Challenge has propelled the successful introduction of heat pump prototypes that can withstand subfreezing weather. Similarly, the DOE’s Commercial Building Rooftop Heat Pump Accelerator program has helped drive packaged heat pump performance toward greater efficiency for commercial and light commercial buildings located in colder climate zones.  Water-to-water heat pumps Water-to-water heat pumps can replace legacy chiller and boiler combinations without the need for major changes Innovations in commercial water-to-water compound centrifugal heat pumps are also accelerating decarbonization within building retrofits. For facilities that require simultaneous heating and cooling, such as hospitals and universities, water-to-water heat pumps can replace legacy chiller and boiler combinations without the need for major changes to the existing HVAC infrastructure. This partial decarbonization approach can help building operators achieve their decarbonization goals while also lowering operational expenses (OpEx). In many instances, this reduction in OpEx also provides a path to funding additional decarbonization strategies.      A2L refrigerants   The EPA continues to make strides in reducing the consumption and production of hydrofluorocarbons (HFCs) under the American Innovation and Manufacturing (AIM) Act. As part of the AIM Act, the Technology Transitions Program will usher in sector-based regulations beginning January 1, 2025, prohibiting the manufacturing of equipment using refrigerants with a GWP higher than 700.  New protocols As a result, new equipment will continue to hit the market throughout 2025. In tandem, many contractors and technicians will begin working with A2L refrigerants for the first time. Because these refrigerants are classified by ASHRAE as mildly flammable, new protocols for safe refrigerant servicing, storage, and transportation, and refrigerant leak detection (RDS) requirements will be necessary for some applications.   ACCA A2L refrigerant training Contractors should complete ACCA A2L refrigerant training and EPA section 608 certification With these changes, it is important to become familiar with updated codes, including UL 60335-2-40, 3rd and 4th editions, ASHRAE 15 and 15.,2, and the AHRI Safe Refrigerant Transition Task Force (SRTTF), as well as local and state regulations. Contractors should also complete ACCA A2L refrigerant training and EPA section 608 certification. Additionally, new digital tools such as RDS calculators can help contractors navigate A2L leak detection requirements and mitigation strategies while in the field.    AI and controls   AI is positioned to continue to make a huge impact in HVAC. We’re seeing more service techs using generative AI and co-pilots for troubleshooting rather than paging through manuals. At the same time, AI technology can predict if connected HVAC units may have issues, making it possible for service techs to address potential issues in their earliest stages or prevent them from happening altogether. Both of these use cases can help technicians service equipment more quickly, efficiently, and accurately, which can increase equipment longevity and reliability while reducing downtime and total cost of ownership.   Building performance AI-powered building controls can provide a holistic view into contextualized, full-building performance More HVAC systems are being equipped with AI-enhanced controls and reporting. The capabilities these tools provide can give building owners greater opportunities to optimize building performance, improve occupant comfort and well-being, and more easily reach sustainability targets. From a building management perspective, AI-powered building controls can provide a holistic view into contextualized, full-building performance, occupant experience, and sustainability. Openness and flexibility As AI becomes more commonplace, AI-centric building standards, such as ASHRAE Guideline 36, will also continue to emerge that balance sustainability with occupant comfort, health, and safety.    As we move into 2025, we can expect to see another year of equipment innovations, technology advancements, and evolving regulations. As an industry, we continue to face change with openness and flexibility. And it’s this mindset that empowers us to meet, and exceed, expectations – now and in the year to come.

Viessmann Climate Solutions (VCS) has combined with Carrier to become the core of Carrier’s newly formed business unit Residential and Light Commercial for European, Middle East and Africa. This business unit is now able to offer brands like Carrier, Toshiba, and Beretta next to the premium brand Viessmann, thus covering additional user segments with differentiated products at various price points. Climate system technology “The climate system technology of Viessmann Climate Solutions and the cooling-focused systems of Carrier combine two core competencies that will be crucial in responding to individual customer needs worldwide,” says Thomas Heim, President, Residential & Light Commercial HVAC for Europe, Middle East, and Africa. “Carrier expands the Viessmann portfolio in the area of air conditioning and enables seamless integration of heating and cooling.” Carrier’s acquisition of Viessmann Climate Solutions There was huge media interest in Carrier’s buy of Viessmann Climate Solutions when it was revealed There was huge media interest in Carrier’s acquisition of Viessmann Climate Solutions when it was announced more than a year ago. In media interviews, Carrier Chairman & CEO David Gitlin; Max Viessmann, CEO and Member of the Executive Board of the Viessmann Group, which owned Viessmann Climate Solutions prior to Carrier’s acquisition; and Heim presented the many advantages the combination would bring. Advantages apply both to the product portfolios, which perfectly complement each other, and to the optimized development of global markets. A year later, the feedback is extremely positive, says Heim. Latest developments in the Viessmann system The sentiment was confirmed by numerous conversations with installers at the ISH 2025 trade fair in March in Frankfurt. “The advantages of this combination between Viessmann Climate Solutions and Carrier are clearly noticeable for everyone involved,” says Heim.   The latest developments were well received by the 100,000 visitors to the booth at ISH, with particular interest in the Viessmann system connecting several products into a solution based on full stack controls platform Viessmann One. Residential and commercial sector customers The alliance meets the needs of residential and commercial sector clients with a multi-brand portfolio Also at ISH, Viessman highlighted the newly created alliance of Viessmann, Carrier, Riello, and Beretta around the theme “Power Play as One Team.” The alliance meets the needs of both residential and commercial sector customers with a multi-brand portfolio of heating, ventilation and cooling solutions for all output ranges and price levels. “Together with Carrier, we are in an even better position to provide solutions that address climate challenges by reducing CO₂ emissions and increasing energy efficiency,” says Heim. Digital tools and ecosystems The expanded product line builds on the strong longstanding collaboration of Viessmann Climate solutions with installation partners. For example, the addition of (light) commercial Carrier heat pumps to the portfolio enables leveraging together existing digital tools and ecosystems with this expanded offering. “This increases the relevance of our ecosystems for both our installers and users,” says Heim. Culture of collaboration The focus from the start has been on creating a culture of collaboration among both teams When integrating companies, it is always about bringing people together and providing a framework that allows them to unlock their full potential, says Heim. Thus, the focus from the beginning has been on creating a culture of collaboration that allows the teams from both companies to contribute their unique talents and strengths. “We are convinced that we have found the right formula and that combining Carrier and Viessmann Climate Solutions will lead to 1 + 1 > 4,” he says. “To get there, our shared purpose and values play an important role in this successful integration.” Carrier product portfolios “Companies can only be successful if they think and act globally and operate in a spirit of co-creation,” says Heim. Combining the Viessmann Climate Solutions and Carrier product portfolios creates added value for all installation partners and users. The increasing complexity of the HVAC industry is contributing to a trend toward company consolidation. “Let's be honest: in the past, you simply installed a gas boiler,” says Heim. PV installation They also offer a design tool on the Internet and even financing with the help of a partner bank Heim added: “Today, it's often about heat pumps, battery storage, photovoltaics, wall boxes and an energy management system that links everything together. It's all extremely complex. That's why we are constantly training our installers and at the same time reducing their workload." "Many of our installers don't want to climb on a roof, which is fine. We then look for facilitating a service provider that adds the PV installation to the holistic offering of our partner company.” They also offer a configuration tool on the Internet and even financing with the help of a partner bank. Climate-neutral by 2050 Data centers will also play a bigger role in the future. For example, a typical office building in Manhattan requires only three cooling units, while a data center they are currently working on requires 140. An AI chip generates seven times more heat than a conventional chip. “This market is huge, and we are determined to play an important role,” says Heim. The building sector produces 40 percent of CO2 emissions in Europe. Therefore, a transformation to renewable energies is necessary to become climate-neutral by 2050. Viessmann products and systems “For us, as a manufacturer, this means that we continue to encourage the building electrification system strongly,” says Heim. Viessmann products and systems offer installers the basis for a sustainable climate solution offering for their users. Almost all areas, from single- and multi-family houses to commercial and industrial buildings and municipal facilities, can be covered by the system portfolio. New hydraulic interface Regardless of the outdoor unit (ODU), the new components always match the indoor unit (IDU) Heim highlights three notable products as part of the Viessmann System Solution. Users can now choose between the high-efficiency, high-comfort Vitocal 250-A and the more economical Vitocal 150-A domestic air source heat pumps. Regardless of the outdoor unit (ODU), the new components always match the indoor unit (IDU). This high level of flexibility pays off for the installers in significantly shorter installation times, and users only pay for what they actually need for their heating system. The new hydraulic interface also saves time during installation. Vitocharge VX3 storage unit The Vitocharge VX3 storage unit is one of the most proven battery storage units in its class. Its maximum storage capacity of 75 kWh (5 modules of 15 kWh each) is particularly suitable for large, detached houses and apartment blocks, as well as for smaller commercial applications such as supermarkets or craft businesses. Following on from the large power classes, the smaller modules can now also be cascaded at 4.6 kVA. Flexible installation options are now available, including corner or horizontal mounting, which allow for optimal adaptation to on-site conditions.

The HVAC Industry gathered in Orlando for AHR Expo 2025, focusing on the latest advancements in technology. Attendees included contractors, manufacturers, engineers, system design professionals, facility managers, architects, wholesalers, and distributors. This year’s expo highlighted game-changing innovations, regulatory shifts, and emerging trends designed to enhance efficiency, sustainability, and connectivity. For HVAC professionals, these developments translate into practical solutions that improve system performance, optimize energy use, and simplify compliance with evolving industry standards. The Next Phase of Refrigerant Transition The transition to A2L refrigerants is a dominant theme at this year’s expo, with major players such as Arkema, Chemours, LG Electronics, Rheem, Daikin, and others showcasing the latest refrigerants and equipment solutions. Following the deadline of Jan. 1, 2025, the shift from R-410A to R-32 and R-454B is well underway, with 80% of manufacturers opting for R-454B. While concerns about flammability persist, experts emphasize that proper training and system design can mitigate risks. LG Electronics' full product line Some OEMs opted for R-454B as an option that is closer to a “drop-in” solution Some OEMs opted for R-454B as an option that is closer to a “drop-in” solution. Daikin was among the manufacturers to go all-in on R-32, which required a complete redesign of product components, ultimately pioneering to more efficient, cost-effective systems, according to the company. LG Electronics' full product line now uses R-32 refrigerant, and they started shipping products in December. All R-410A equipment will be gone by the end of Q1. variety of products on R-454B refrigerant Rheem announced their 100-year anniversary, and a new tagline, "Engineered for Life." They say the trend is toward side-discharge heat pumps, although the industry needs a mix of both. They had a variety of products on display that use R-454B refrigerant.  Attendees at AHR Expo 2025 came away with an understanding that refrigerant regulations and selecting compatible equipment will be crucial for ensuring smooth transitions in commercial and residential applications. Intelligent Building Automation and Controls Smart HVAC technology is revolutionizing building control, with AI-driven automation Smart HVAC technology is revolutionizing building management, with AI-driven automation, IoT connectivity, and remote monitoring taking center stage. Companies like Distech Controls and Schneider Electric are introducing IP-based controllers that integrate seamlessly with existing building management systems. Belimo’s intelligent butterfly valve and Delta’s Node-RED Programming with built-in Python support, among other products, are making automation more powerful and user-friendly. Copeland’s Sensi Touch 2 smart thermostat Copeland’s Sensi Touch 2 smart thermostat and Sensi equipment interface module (EIM) can eliminate the need to pull additional wires during installation. The system is weatherproof, indoor, or outdoor, and communicates using radio frequency (RF). AHR Expo 2025 made a strong case that investing in smart controls will improve operational efficiency, reduce downtime, and enable predictive maintenance. Hydronic Systems for Data Center Cooling One major player is Bell & Gossett/Xylem, whose hydronic cooling systems target data center market The rise of data center cooling solutions was another recurring theme at AHR. One prominent player is Bell & Gossett/Xylem, whose hydronic cooling systems target the data center market. The company’s e-1531X and e-1532X smart pumps offer enhanced energy efficiency and a larger "efficiency island." These systems are designed to meet the growing demand for sustainable data center cooling, providing a net-zero roadmap. As data center energy consumption rises, hydronic solutions offer a scalable, efficient approach to thermal management. Heat Pumps Expand Capabilities and Market Reach Heat pumps continue to dominate as a top energy-efficient alternative for commercial and residential applications. Companies such as Danfoss, Mitsubishi, and Samsung are pushing the boundaries with heat pumps that operate in extreme temperatures. Danfoss is progressing forward related to four application areas at AHR 2025--heat pumps, data centers, RTU/DOAS, and retail/refrigeration. Emphasis is on lower emissions and better energy efficiency. Midea drew a lot of attention at AHR 2025, including modular air handler Midea drew a lot of attention at AHR 2025, including their modular air handler – the  EVOX G³ – that breaks down into three pieces for easy movement and installation in any of six configurations. They are also opening showrooms throughout the country so consumers and contractors can see and touch the products. Integration with renewable energy sources Johnson Controls-Hitachi mini-splits have a self-cleaning feature called FrostWash Johnson Controls-Hitachi Air Conditioning’s Hitachi mini-splits have a self-cleaning feature called "FrostWash;" they intentionally build a frost layer on the coil so the fine particulates can be captured and then melted away, thus avoiding mold and other contaminants. It can be used in lieu of UV light, which damages plastics. The heat pump market is growing rapidly, and advancements in low-temperature performance and integration with renewable energy sources will drive adoption. The Drive Toward Sustainability Sustainability is a recurring theme at the expo, with manufacturers prioritizing energy-efficient equipment, smart automation, and low-GWP refrigerants. Companies like Lennox, and Rheem are launching highly efficient packaged rooftop units and unitary heat pump systems. Grundfos’s distributed pumping technology and Ziehl-Abegg’s ZAcore intelligent control platform further demonstrate the industry's push toward lower energy consumption and minimal environmental impact. Investing in sustainable HVAC technologies Availability is paramount, and they are opening a new factory in Mexico Lennox is serving the "emergency replacement" market for HVAC equipment with their Xion line. Availability is paramount, and they are opening a new factory in Mexico. Telling the "story" of humidification at AHR 2025, Condair has products for any vertical. They say more education and awareness are needed on the value of humidification. As regulations tighten and demand for green building solutions rises, investing in sustainable HVAC technologies will be critical for long-term success. Smarter, Cleaner, and More Efficient AHR Expo 2025 underscores the industry's shift toward smarter, cleaner, and more efficient HVAC solutions. Whether it’s refrigerant transitions, intelligent automation, or advanced heat pump technology, staying ahead of these trends will help HVAC professionals deliver superior performance while meeting regulatory requirements. The innovations showcased in Orlando set the stage for a future where HVAC systems are not only more efficient and environmentally friendly but also easier to manage and integrate into modern buildings.

The British Boiler Upgrade Scheme (BUS) is an essential initiative for building owners, security professionals, and HVAC experts aiming to reduce carbon emissions and energy costs. Designed to replace aging fossil fuel boilers with low-carbon alternatives, this United Kingdom government-backed scheme provides financial incentives that make upgrading more accessible. With rising energy prices and stricter environmental regulations, the program could benefit property investors and tenants while fostering collaboration across the HVAC industry.  What is the British Boiler Upgrade Scheme?   The British Boiler Upgrade Scheme (BUS) is a government program focused on reducing the UK’s carbon footprint. It encourages homeowners and building owners in England and Wales to upgrade their outdated fossil fuel-based heating systems. The scheme offers grants of up to £7,500 (around $9,600) for air or ground-source heat pump installations and £5,000 (about $6,400) for biomass boilers.  Environmentally friendly alternatives The program's target is to facilitate 600,000 heat pump installations per year by 2028 These grants help offset the costs of upgrading to more environmentally friendly alternatives, making it more appealing for building owners to switch. The program's target is to facilitate 600,000 heat pump installations per year by 2028, but uptake has been slower than anticipated due to several challenges, including limited public awareness and a shortage of trained installers.  Air-source heat pump grants The government’s latest figures show a growing demand, with applications reaching 55,095 by the end of September 2024. Most grants (97%) are for air-source heat pumps. In September, 1,882 grants were paid out, bringing the scheme’s overall total to 34,438 grants.  "An uplift in applications for September, following a record year for heat pump installations so far, reaffirms that more homeowners than ever are recognizing the substantial benefits of upgrading to greener heating systems,” comments Gav Murray, Hive Heating Director at Centrica New Business and Net Zero.   Additional funding “The government's announcement of additional funding for the upgrade scheme will help to alleviate concerns that support for households was set to be reduced,” Murray adds. “Industry leaders must now work together to capitalize on this and ensure the workforce has the skills to convince would-be adopters and deliver on rolling out the technology to more homes across the country.”  How the Scheme Promotes Greater Use of HVAC Technology   The inclusion of hybrid heat pumps in the scheme allows for a smoother transition The Boiler Upgrade Scheme serves as a driving force behind the increased adoption of advanced HVAC technologies like heat pumps. By providing financial incentives, it encourages building owners to transition to sustainable systems that are more energy-efficient and environmentally friendly. Not only do these technologies reduce greenhouse gas emissions, but they also align with the UK’s broader initiative to reach net-zero carbon emissions by 2050. Importantly, the inclusion of hybrid heat pumps in the scheme allows for a smoother transition. These systems combine traditional boilers with heat pumps, offering the quickest route to decarbonization for existing properties without demanding excessive financial outlay.  Benefits for Tenants and Investors   The Boiler Upgrade Scheme offers numerous benefits for both tenants and investors. For tenants, upgrading to heat pumps or biomass boilers means lower energy bills due to increased efficiency. This reduction in utility costs is particularly attractive in a time of rising energy prices. Additionally, the environmental benefits of these upgrades—namely, reduced carbon emissions—are a strong selling point for environmentally conscious tenants.  Energy Performance Certificate (EPC) ratings For investors and building owners, there are financial gains as well. The installation of modern HVAC systems can increase property values by enhancing energy efficiency and lowering operational costs. Buildings with better Energy Performance Certificate (EPC) ratings are more attractive to investors, offering lower long-term running costs and potentially higher rental income. Moreover, the ability to command higher property values and comply with future environmental regulations adds to the scheme's appeal.  Encouraging Collaboration Across the Industry   The Boiler Upgrade Scheme promotes collaboration among various stakeholders in the building and HVAC The Boiler Upgrade Scheme goes beyond offering financial incentives, it promotes collaboration among various stakeholders in the building and HVAC industries. Building owners, managers, architects, and HVAC professionals must work together to ensure that new systems are installed correctly and that properties are optimized for energy efficiency.  BMS and smart technology The scheme also creates an opportunity to integrate energy-efficient upgrades with building management systems (BMS) and smart technology solutions. These integrated systems can enhance overall building performance, reduce energy consumption, and improve tenant comfort and security. Hybrid heat pumps, now included in the scheme, further encourage industry collaboration. Their adoption requires a coordinated effort from engineers, architects, and HVAC specialists to ensure that both the traditional and renewable components of the heating system work seamlessly together.

PSR Mechanical, a pioneering commercial HVAC service provider in Seattle, has partnered with ECM Technologies, a national pioneer in HVAC operational efficiency and energy conservation, to bring ThermaClear® to the local market. This groundbreaking HVAC treatment significantly improves system performance and extends equipment life. The first Seattle treatment took place at The Museum of Flight, the world’s largest independent, nonprofit air and space museum, housing more than 150 aircraft and spacecraft on its 23-acre campus.  optimizing system performance The programs deliver immersive, user-driven affairs around the subjects of aviation and robotics The Museum plays a vital role in community aerospace education, offering immersive STEM programming for K-12 educators and students. The programs deliver immersive, user-driven experiences around the subjects of aviation, space and robotics. By reducing energy use, optimizing system performance and lowering operating costs, ThermaClear frees capital for new exhibits and programs, safeguards delicate artifacts with reduced equipment downtime and delivers greater year-round comfort for the Museum’s guests and staff.  Several HVAC units The initial treatment was completed on several HVAC units within the Museum’s Aviation Pavilion, and PSR Mechanical is scheduled to treat an additional 282 tons throughout the rest of the campus within the coming months. Among the treated units is the system that cools the historic first jet Air Force One, used by Presidents Eisenhower, Kennedy, Johnson, and Nixon.   Declining HVAC performance ThermaClear is a one-time therapy that eliminates internal oil fouling, a joint but often overlooked ThermaClear is a one-time treatment that eliminates internal oil fouling, a common but often overlooked cause of declining HVAC performance. The treatment works by displacing oil buildup on heat exchanger coils, restoring maximum energy efficiency and allowing optimal heat transfer. It also super-lubricates compressors, reducing wear and tear and lowering the risk of failures. By forming a permanent protective barrier inside the system, ThermaClear prevents future oil fouling and the efficiency losses that come with it. This leads to fewer repairs, reduced operating costs and greater reliability with less system downtime.   ThermaClear Preferred Service Network The introduction of ThermaClear in Seattle follows a national partnership between ECM Technologies and Service Logic, the largest privately held commercial HVAC service provider in the United States. As a Service Logic company, PSR Mechanical is now one of a limited number of North American providers in the ThermaClear Preferred Service Network. This exclusive designation allows PSR to offer ThermaClear as part of its ongoing commitment to building performance and reliability.  Range of preventive maintenance programs “Adding ThermaClear to our service and project offerings allows us to combine our deep expertise in preventive and predictive HVAC maintenance with a cutting-edge technology that restores lost efficiency and protects systems long term,” said Greg Hagen, vice president of PSR Mechanical.  PSR Mechanical currently offers a full range of preventive maintenance programs designed to keep HVAC systems running efficiently and reliably. Over time, neglected maintenance issues can contribute to energy loss and premature equipment wear. With the addition of ThermaClear, PSR can help clients restore HVAC systems to peak performance and maintain long-term efficiency. 

The Olsen Group, based in Boca Raton, Florida, is a national pioneer in HVAC energy optimization. Donald Olsen and his seasoned team of HVAC control specialists have been in business for two decades, integrating energy-saving solutions into over a thousand commercial and large-scale residential projects. In the process, the Olsen Group has become one of North America’s top suppliers of Verdant thermostats. Verdant devices leverage intelligent occupancy sensors and proprietary software to reduce HVAC runtimes by 45 percent on average. HVAC control integration Verdant’s effectiveness, reliability, and broad compatibility have made Verdant the energy management solution of choice for thousands of hotels and MDUs, including multifamily buildings, senior living, and student housing.  The Olsen Group has forged a productive two-way partnership with Verdant. Donald Olsen and his team have made it a priority to share data, customer feedback, and requirements with Verdant – and Verdant, in turn, has come to rely on Olsen when they need to field test a new solution. In May of 2024, Verdant reached out to Olsen for help with a new pilot program aiming to facilitate more effective HVAC control integration, easier service, and deep energy savings for MDU projects around the globe. The Challenge Commercial VRF systems have an extremely attractive set of upsides for hotel operators Inverter (VRF) system design is becoming increasingly common in hospitality settings. Commercial VRF systems have an extremely attractive set of upsides for hotel operators. They are significantly more energy efficient and quieter than traditional VTACs or PTACs; they can provide simultaneous heating and cooling to different zones for optimal guest comfort; and they allow both individual room-level setpoint control and building-level centralized management. However, the majority of VRF units cannot connect directly to a third-party smart thermostat. Because they rely on proprietary manufacturer protocols for variable speed commands and internal diagnostics, VRF units require an external control solution to facilitate bidirectional communication with Verdant thermostats. Installation and commissioning process Every additional component in a system adds complexity and opportunity for human error. In hotels, that complexity is multiplied across hundreds of rooms. “HVAC systems are installed dark for new builds, with no power running to the site,” says Donald Olsen, President and Owner of the Olsen Group. “There’s no way to test as we go. If there are any mistakes during installation, we find out about it when the lights go on after project completion.” And mistakes are nearly inevitable. Some third-party controllers have prominent dipswitches that can be easily snagged or tripped during transportation or installation, altering their configuration and causing them to fail once the system is powered. These switches are often accidentally tripped multiple times throughout the installation and commissioning process, pioneering to a never-ending cycle of errors and service calls. VRF control solutions  Adding to the issue, not all third-party control keys have the ability to retrieve and solve system error codes “Once properly configured and installed, VRF control solutions tend to be incredibly reliable,” says Olsen. “Getting them there is a real challenge, however. Accidents, human error, and repeated recalibrations can drive serious project overruns and client dissatisfaction.” Adding to the problem, not all third-party control solutions have the capability to retrieve and translate system error codes. “If the central management system isn’t getting certified manufacturer control signals from the control device, it may no longer recognize the thermostat. The system will continue to function, but it will always show up in the central manager with an error message,” warns Olsen. Airzone Aidoo Pro control solution These false error reports degrade the overall utility of the central management system, robbing operators of the ability to detect and mitigate problems proactively and requiring onsite testing to diagnose any issues. As VRF systems become the norm for hospitality projects, Verdant needed a solution to reduce the possibility of accidental misconfiguration and improve visibility into system functionality. They called on Olsen to conduct a pilot program, retrofitting sixteen VRF units in the Jacksonville Beach, FL Springhill Suites with the Airzone Aidoo Pro control solution. The Solution For the pilot, the Olsen Group outfitted each VRV unit in the loop with an Aidoo Pro controller The Jacksonville Beach Springhill Suites is a 156-room hotel with a state-of-the-art Daikin VRV rooftop chiller system. The Airzone Aidoo Pro ships preconfigured for the specific HVAC unit model, reducing the possibility for errors during initial installation. For the pilot, the Olsen Group outfitted each VRV unit in the loop with an Aidoo Pro controller. This 1:1 system design simplifies operations and troubleshooting: Any issue can be immediately traced back to a single unit, minimizing the scope and duration or repair downtime. “The Airzone Aidoo Pro offered two key upgrades as a VRV control solution,” says Olsen. “First, the dipswitches are recessed, making them much harder to trip accidentally. Second, Aidoo makes the system much easier to service. We can read error codes, run tests, and diagnose issues remotely, without ever needing to disrupt a guest’s stay.” Airzone’s expansive library This advanced remote management is enabled by Airzone’s expansive library of manufacturer protocols. “Because of our close relationship with HVAC manufacturers, Aidoo Pro can provide the proprietary control signals the central management system is expecting to see,” says Borja Fernandez, Director of OEM Solutions, Airzone. “That preserves all the features of the HVAC unit and thermostat, while also eliminating persistent false error codes. With Aidoo Pro, the central management system can function as a single-pane-of-glass HVAC monitoring and control solution for the building, as intended.” Results and Next Steps The pilot program is expanding to new builds around the globe, including projects in the UK Olsen reports that Springhill Suites is happy with their upgraded VRV system. “They have more visibility into the system and fewer services calls,” says Olsen. “When there is an issue, we can diagnose it remotely for faster resolution and less guest room downtime. It’s a much better customer experience overall.” Verdant is encouraged as well. This pilot program is expanding to several new builds around the globe, including projects in Central America, the Caribbean, the UK, and the EU. HVAC energy savings “There is a massive untapped market for energy-efficient HVAC upgrades in the Caribbean region,” says Olsen. “Energy costs there can exceed a dollar per kilowatt hour. Cost-effective devices like Verdant thermostats and the Airzone Aidoo Pro pay for themselves very easily in that scenario.” Verdant and the Olsen Group have built global brands by helping commercial properties realize significant HVAC energy savings. Through the Airzone Aidoo Pro pilot program, they are continuing to innovate, enabling reliable integration and enterprise-grade control on highly efficient VRF units. “The demand for commercial VRF control is definitely there,” says Olsen. “With Verdant and Airzone, we can deliver it with ease.”

Nearly Bergamo, Italy, there is a weather station that collects meteorological data and monitors air quality. Its operation requires professional equipment that, however, works without a permanent power supply or the presence of staff. Such conditions put the equipment and other assets at risk. In fact, the station had already suffered from several intrusion attempts and needed a security system to be put in place. Challenge Protect a remote object without a permanent power supply Like many remote objects, the weather station does not have a permanent power supply and cannot afford a full-time presence of staff members on the site. After several intrusion attempts, the client needed to secure an area of 600 square meters, prevent equipment theft, and put an end to the damage made to the agricultural produce growing on the site. They looked for a professional security system that could operate outdoors without mains power and was easy to manage remotely.  Solution Wireless outdoor security system with flexible power options and remote control The implemented security system consists of 11 Ajax devices, coupled with a third-party solar panel, battery, and case In response to the challenge, Von Wunster Next s.r.l. configured a solution for securing the object that has no permanent power source or staff on-site but has extensive sun exposure. The implemented security system consists of 11 Ajax devices, coupled with a third-party solar panel, battery, and case. At the core of the system, there is a Hub 2 (2G) Jeweller control panel with a low-voltage PSU 6V. The latter allows the hub to operate from an external 7 A h battery for years. The battery, in turn, is charged via the 25 W solar panel (10 A). If the external power supply fails, the hub switches to a built-in battery and continues to protect the object for up to 16 hours or even 60 hours if the Battery Power Saver feature is enabled. The client and central monitoring station of the security company instantly receive a notification about the power issue to be fixed. The company has enough time to get to the remote object for restoring power without compromising its security. A SIM card (2G) ensures connection with the network, so Von Wunster Next s.r.l. won’t miss a thing. StreetSiren DoubleDeck Other elements of the security system are wireless outdoor Ajax devices that operate with pre-installed batteries for up to 3 years. Several MotionCam Outdoor Jeweller cover the perimeter and detect movement within seconds. The device’s photo-by-alarm feature allows minimizing expensive patrol dispatches to false alarms and gives the client peace of mind. StreetSiren DoubleDeck activates the sound of up to 113 dB and bright LED indicators in response to an alarm to deter and expose intruders. Communication with the wireless devices is provided via Ajax proprietary radio protocols Jeweler and Wings at a distance of up to 2,000 m. It’s perfect for covering large areas such as that of the station. Ajax SpaceControl Jeweller key fobs Dealing with the security system is as easy as it gets for both the client and the security company The client can control security modes effortlessly. There are four end users with different rights, and they can manage the system in the Ajax app on their phones and with wireless Ajax SpaceControl Jeweller key fobs. Von Wunster Next s.r.l., which installed the system and conducts monitoring, can track the devices’ status and take care of their configuration and maintenance remotely in the majority of cases.  Dealing with the security system is as easy as it gets for both the client and the security company. All the devices are either weather-resistant or reliably hidden in the case to withstand the impacts of the environment. Constant exposure to rain or sun does not affect the security system. Why Ajax Flexible power supply options. Ajax's product portfolio includes PSUs designed to connect the system to a low-voltage power supply even when no permanent power source is available. Wireless Ajax devices operate with pre-installed batteries for up to 3 years. Visual alarm verification. With photo verification, system users and monitoring company operators can promptly verify whether an alarm is real and save costs on patrol dispatches. It is a particularly important feature for remote objects. Remote system management. The system can be managed, configured, and maintained through Ajax apps with no people present on-site, which is a cost-effective solution for a remote object. Products Hub 2 (2G) Jeweller - Security system control panel with support for photo verification MotionCam Outdoor Jeweller - Wireless outdoor motion detector with a photo camera to verify alarms 6V PSU for Hub 2/Hub 2 Plus/ReX 2 - Power supply unit for operation of the device from portable battery StreetSiren DoubleDeck Jeweller - Wireless outdoor siren with a clip lock for a branded faceplate Ajax SpaceControl Jeweller - A key fob for controlling security modes

When the Florida Keys Aqueduct Authority opens its upgraded desalination plant on Stock Island, Danfoss high-pressure pumps and energy recovery devices will radically improve the energy efficiency of a SWRO plant that plays a central role in the Florida Keys water supply strategy.   The Florida Keys Aqueduct Authority (FKAA) supplies 20 million gallons of potable water per day (75.7k m3/d) to its nearly 80,000 customers in the Florida Keys. While most of the water is normally sourced in aquifers, FKAA also operates two seawater reverse osmosis (SWRO) plants for emergency purposes and as a supplemental supply in periods of high demand. FKAA initiated the SWRO plant upgrade FKAA initiated the upgrade of one of these plants, the Kermit H. Lewin Water Treatment Plant located on Stock Island, to increase its capacity, make it more resilient to hurricanes and rising flood levels, and improve its energy efficiency. Since opening in 1980, not only have guidelines for storm protection of such critical infrastructure changed significantly, so has the potential to save on the energy required by desalination. Designed to withstand future floods and hurricanes With sustained winds above 157 mph, such storms can cause severe damage to everything in their path To improve resiliency to extreme weather events in the low-lying Florida Keys, the entire site and facility have now been upgraded to withstand Category 5 hurricanes, the most dangerous level of tropical storms. With sustained winds above 157 mph (252 kph), such storms can cause severe damage to everything in their path. Accordingly, the refurbished facility lifts all electrical and mechanical equipment above the base flood elevation and the expected sea-level rise anticipated by 2060, effectively placing the plant’s desalination operations on stilts to mitigate the risk of severe flooding. improve the plant’s energy efficiency Another key goal of the upgrade was to improve the plant’s energy efficiency at the same time as doubling its production capacity from 2 MGD (7,500 m3/d) to 4 MGD (15,000 m3/d). To bring the refurbished plant up to date and reduce its financial and environmental costs, Carollo, a major U.S. engineering firm specializing in water and wastewater facilities, specified the latest axial-piston high-pressure pumps to replace legacy centrifugal pumps and swapped out old turbines for the newest active isobaric energy recovery technology. Upgraded plant to consist of four RO trains This innovative high-pressure setup dramatically reduces the plant’s energy needs This innovative high-pressure setup dramatically reduces the plant’s energy needs. In the new Kermit H. Lewin Water Treatment Plant being built by Biwater, a world pioneer in water treatment, the RO process-specific energy consumption will be slashed from 25.6 kW/kgal (6.77 kWh/m3) to 8.6 kW/kgal (2.27 kWh/m3). With this improvement, the new plant will be among the most energy-efficient in its class, with significantly reduced electricity bills and greenhouse gas emissions. The upgraded plant will consist of four RO trains, each of which includes two Danfoss APP 86 high-pressure pumps and three Danfoss iSave 70 ERDs. Improvement in energy efficiency In addition to the dramatic improvement in energy efficiency, configuring each train with parallel high-pressure pumps provides additional resilience and other benefits: the smaller pumps are easier to lift and work on, and it is now affordable to keep a spare pump in stock. The new improved plant will come online in Q4 2024. The new Kermit H. Lewin Water Treatment Plant is located just north of the existing plant. Construction began in Q3 2021 and will be completed by Q2 2024. The plant is expected to be fully operational by Q4 2024.

Water and energy efficiency company Cenergist has been appointed by Ashford Borough Council to provide a nutrient neutrality solution for a new 1,000 home development using its patented Control Flow technologies. The site is within a nutrient-sensitive area that requires any new development to mitigate against increased localized waterway pollution.  Cenergist’s patented Control Flow products are pressure-independent flow controllers that provide long-term reductions in water wastage and nutrient emissions from homes as well as improve the performance of existing gas boilers. By eliminating the fluctuations in the water supply caused by system pressure changes, Control Flow provides a steady precise water flow to the home.  Control Flow installations By installing in existing homes in the area, Control Flow creates the headroom for new builds Performance tested in both the UK and Europe, Control Flow has been shown to reduce water and energy bills by up to £360 per annum with a 98% customer satisfaction rating. By installing in existing homes in the area, Control Flow creates the headroom for new builds.  Under the contract, Cenergist will determine the precise number of Control Flow installations required to offset all the nutrient emissions from the new development at Ashford. Working with the council, it will then contact and persuade householders of the benefits of the technology and then carry and complete the installations and provide the necessary assurance to allow Natural England to sign off on the development. The project follows on from the use of Control Flow to unlock a development in Crawley that had previously been held up due to water scarcity concerns. Nutrient neutrality strategies Paul Mckenner, head of strategic projects at Ashford Borough Council, said: “The retrofitting works is part of a series of measures to unlock approximately 1,000 new dwellings which the Council has a vested interest in.” In England, waterways including lakes, rivers and estuaries are protected under the Conservation of Habitats and Species Regulations 2017. Natural England has mandated that developments located near vulnerable watercourses require nutrient neutrality strategies to prevent negative ecological impact." Caroline Gray Mason, business development director at Cenergist commented: “Nutrient neutrality is a significant challenge facing developers as they look to deliver much-needed housing in a sustainable, responsible way. It is essential to be on the front foot with nutrient mitigation measures to minimize the environmental impact of new developments in vulnerable areas. Securing this contact with Ashford Borough Council is a testament to Control Flow’s role to mitigate nutrient pollution by reducing the level of emissions from existing homes.”

With nearly nine out of ten new school sites above the World Health Organization (WHO) targets on major air pollutants, Elta is urging decision makers for schools’ building services to address the problem through a ‘three-step’ process to ventilation specification and maintenance. The callout follows a study led by researchers from Evelina London Children’s Hospital and King’s College London (KCL). Following their analysis of 147 new school locations around England that were to be built between 2017 and 2025, the researchers found that 86% of those sites exceeded air quality targets. Those targets are for particulate matter PM2.5, PM10, and NO2 (Nitrogen Dioxide), pioneering to the conclusion that air quality around new schools is “alarmingly poor”. Three steps to prevent poor air  With emerging studies also showing that poor air quality leads to lowered cognitive growth With emerging studies also showing that poor air quality leads to lowered cognitive growth, Elta, UK’s pioneering experts in ventilation equipment, outlines three measures to tackle the problem. The three steps are aimed at preventing poor air from entering the school building and classrooms, including: Installing air monitoring equipment in schools to identify concentrations of particulate matter, nitrogen dioxide, and other contributors to poor air quality Using correctly specified mechanical ventilation systems to process and filter air of harmful particulate matter and substances, to bring indoor air quality to a safe level Having a robust maintenance schedule in place to clean ventilation equipment on a regular basis Decision-makers for building services David Millward, Group Product Manager at Elta Group, the parent company of Elta, said: “This latest study by Evelina London Children’s Hospital and King’s College London is a harsh wake-up call to everybody in the country and is a reminder that poor air quality has a real detrimental effect on children. Not only is it harmful from a health perspective, putting pupils with respiratory conditions like asthma at higher risk, but poor air also impairs children’s learning and ability to concentrate. “While outdoor air is hard to regulate, there are some immediate steps that decision-makers for building services can take to improve indoor air quality in schools. Through three simple steps of air quality monitoring, correct specification of mechanical ventilation systems, and regular maintenance of these systems, we can at least prevent poor air from making its way into the classroom.” Framework for ventilation Framework for ventilation in schools and recommended performance levels to comply with UK regulations David highlights that ‘Approved Document F – Ventilation – Volume 2’ of the Building Regulations gives guidance about air quality monitoring requirements in buildings other than dwellings.  Meanwhile, ventilation decision-makers for schools should follow the guidance given in the UK Government’s Building Bulletin, BB 101, to understand the framework for ventilation in schools and recommended performance levels to comply with UK regulations. David also urges those in charge of building services for schools to collaborate with ventilation experts to ensure best practices and compliance is achieved. Effects of poor air quality David concluded: “With better collaboration across the supply chain, we can protect the next generation from the effects of poor air quality, and improve indoor air quality across new schools, as well as old." "At Elta, our ventilation experts are always available to help provide guidance and help design ventilation systems, either for newly built schools or for retrofitting to existing school stock.”

Installing HVAC equipment is not as simple as plugging in an appliance. Installers often face many hurdles, including complex system design, space constraints, accurate sizing and load calculation, and proper ductwork installation. But what are we forgetting? We asked our Expert Panel Roundtable: What is the most overlooked factor when installing HVAC systems?

The HVAC market is a rapidly changing environment on a variety of fronts, from the introduction of new refrigerants to the increasing use of artificial intelligence to the embrace of interconnected systems in the Internet of Things (IoT) environment. We asked our Expert Panel Roundtable: How will the HVAC market change in the next five years?

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?