Heat Recovery Ventilators (HRV) - Expert Commentary

Data-Driven Digital Solutions To Optimize Energy Efficiency In Buildings
Data-Driven Digital Solutions To Optimize Energy Efficiency In Buildings

Over the last decades heating, ventilation, and air-conditioning systems became significantly more energy efficient. This is immensely important as they are one of the largest energy-consuming loads in commercial and residential buildings. Smooth performance of the systems requires careful installation, thorough cleaning, and regular maintenance. Running an HVAC system (energy) efficiently is challenging because of constantly changing variables: people entering and leaving a building, changing temperatures and seasons which affect the heating, cooling, and air quality immensely. Research by the European Commission found that buildings are responsible for 40% of all European energy consumption. Emission reduction goals This has a significant environmental impact and will become more expensive over the next centuries while countries work on their net-zero and emission reduction goals. How can the HVAC industry, in cooperation with the green tech sector, ensure less energy consumption and fewer CO2 emissions? Are any other energy-saving options available? Energy-focused digital twins can be used for the planning, operation, and optimization of systems Following, three data-driven solutions for more energy efficiency in buildings are presented. To understand and operate a technical system it is necessary to have a precise understanding of the system’s parameters and boundaries. HVAC systems are installed in buildings. Buildings, although varying in size, purpose, and layout, can be described by a set of parameters called a digital twin. Energy-focused digital twins can be used for the planning, operation, and optimization of systems. Machine learning algorithms In HVAC applications, a digital twin can be used to design and operate equipment more precisely. It helps to detect defects quicker or even before a failure appears. This saves maintenance costs and reduces potential downtimes. The biggest potential of energy-focused digital twins might be the possibility to use those data sets to train machine learning algorithms. This allows the use of artificial intelligence to optimize HVAC systems. It can raise the energy efficiency of these systems and significantly reduce costs and CO2 emissions. Machine learning offers the HVAC industry immense possibilities. Tracking energy usage on building and room level generates a valuable data set that can be used to operate HVAC systems more energy efficient. Tracking room utilization AI can also consider the exact number of people present in the building when regulating the temperature One example of the use of AI to achieve more energy efficiency is temperature control in buildings. No matter what time of day or night, nor outside temperature or season, the AI algorithm can optimize the temperature in the building according to those variables. AI can also consider the exact number of people present in the building when regulating the temperature. This is important as the number of people and their body heat change the room temperature significantly. The system reacts to all variables by heating more or cooling down further. While it is possible to count people while entering and leaving a building, it is also possible to track their room utilization. The algorithm can not only notice the changing temperatures in rooms caused by body heat. Overall energy consumption It is also able to track where the lights are turned on and off and at what times. Possible reoccurring patterns in those actions can be identified by the algorithm. All this information can be considered when adapting building and room temperature. Tracking people’s actions gives AI detailed information to incorporate into the optimization processes to achieve more energy efficiency. In the same manner, air quality and humidity can be optimized. Especially in commercial buildings, the ventilation is often running too high Especially in commercial buildings, the ventilation is often running too high. Over ventilation is a large waste of energy. If fewer people are in the building it should be lowered to reduce the overall energy consumption. Especially in a work environment, both temperature and ventilation are of high importance, as it has a direct impact on the productivity of most people. Smart control system A smart control system will process all available data on the energy usage in a building and adjust the HVAC system accordingly, in real-time. The more information it can gather for a longer period, the better the system becomes. This saves energy, emits less CO2 and reduces costs. A manual adjustment will never be as efficient, as the number of variables is too large. Additionally, AI can identify any irregularities occurring in the HVAC system and alert the responsible person. Predictive maintenance ensures less downtime. Voltage optimization based on a building’s energy consumption data is a solution that can also enhance energy efficiency in buildings. It can be applied to reduce costs, electrical energy consumption and CO2 emissions. Optimizing the voltage level in real-time means reducing it to a lower level, based on the consumption of the building. Highest savings level The CE certification shows that fluctuations of voltage can be tolerated by a device Electrical energy is supplied to buildings by grid operators. They are supposed to supply 230 V. However, a constant voltage level cannot be guaranteed. The voltage fluctuates. Therefore, all electronic devices must be able to work within those fluctuations. They allow a range of plus and minus 10%, which is compulsory by law. The CE certification shows that fluctuations of voltage can be tolerated by a device. 10% of 230 V allows the reduction of the voltage level to a minimum level of 207 V. At this level, all devices in buildings are guaranteed to run smoothly. Every volt above 207 V can thus be considered more than necessary for the devices to work properly. This means, that at the highest savings level, all devices still work within their specifications. Lower electricity costs But with a lower voltage, the energy consumption is lower. Consuming less energy results in a reduced carbon footprint and lower electricity costs. The advancement of technology and availability of higher resolution data already allows building managers to look at optimizing HVAC systems for better energy efficiency, especially in newer buildings where those systems are installed right away. Consuming less energy results in a reduced carbon footprint and lower electricity costs This provides less energy consumption and less CO2 emissions. As buildings and their HVAC systems are consuming large amounts of energy which emits tons of CO2 every year, enhancing the energy efficiency in buildings becomes crucial on the way to net-zero. Energy-Saving solutions HVAC systems must work with the highest energy efficiency possible, considering that the weather extremes we are experiencing all over the world (colder winters and hotter summers) will increase the demand for them, if not make them indispensable. But these solutions are not only available for new buildings. Existing buildings can also be retrofit by their owners and operators to take advantage of the emerging data-driven trends in the green tech industry. Energy-saving solutions like voltage optimization can significantly reduce buildings’ carbon footprints. Combing several different data-driven energy-saving solutions will reduce the carbon emissions in the building sector significantly.

What We Breathe And What We Feel: Designing Today’s Homes For Optimal IEQ
What We Breathe And What We Feel: Designing Today’s Homes For Optimal IEQ

Most people spend about 90 percent of their time indoors. For home owners, indoor environmental quality (IEQ) is the most meaningful differentiator between ‘high-performance’ and ‘code-built’ homes. Indoor environmental quality  IEQ describes how well the indoor environment promotes occupant comfort and health. The components of IEQ include thermal comfort, indoor air quality (IAQ), sound and lighting. Requirements for optimal IEQ vary per occupant and household, due to individual health needs and levels of sensitivity to sound, light, color and temperature. Let’s discuss how to control the indoor environment for IEQ with particular attention to how heat pumps can help improve thermal comfort and IAQ. Start with the Building Envelope A healthy and comfortable home with optimal IEQ can be considered a single system A healthy and comfortable home with optimal IEQ can be considered a single system, which consists of interdependent parts and sub systems. Mechanical system designers give careful consideration to how components perform, in relation to each other and other variables. Code requirements for tighter building envelopes, improved windows, increased insulation values and more efficient appliances have reduced energy use intensity (EUI), since the 1970s, but also provide the foundation for better performing homes. Optimal IEQ requires control over how air, thermal energy (heat) and moisture enter, exit and flow through the building. Limit Thermal Bridging A thermal bridge is an area that has higher thermal conductivity than the surrounding materials, creating a path of least resistance for heat transfer. Thermal bridges reduce energy efficiency and create health and comfort challenges. When the components of a building assembly are made colder than the air in those spaces, there is the potential for condensation. This can reduce the durability of the building and create potential health hazards, such as mold. When designing high performance homes for maximum efficiency, health and comfort, choose techniques and products, like continuous exterior insulation and windows with low U-values, so as to eliminate limit thermal bridging. Heat Pumps and Thermal Comfort Comfort is a subjective experience, affected by variables, including the occupant’s age, level of physical activity and where they were raised. ASHRAE Standard 55 and the Predictive Mean Vote (PMV) concept use five factors to help builders design comfortable environments that are specific to occupants: Operative temperature Air speed Relative humidity Metabolic rate Occupant clothing High performance heat pump with variable speed compressor A high performance heat pump with a variable speed compressor can meet the challenge of subjective comfort, while improving the home’s energy efficiency. Heat pumps use the natural movement of thermal energy from hotter objects to colder objects, in order to heat or cool the home’s zones. In heating mode, the outdoor unit expands refrigerant gas to make it colder than the ambient air, enabling the unit to extract thermal energy from the outdoor air and transfer it via refrigerant lines to the indoor unit, conditioning the zone. Using this method, a heat pump can provide more energy for heating than it consumes in electricity. Even at low ambient temperatures, modern, all-electric heat pumps can be up to three times more efficient than conventional electrical-resistance systems. Heat pump systems with individually-controlled indoor units Heat pump systems with individually-controlled indoor units for each zone create opportunities to customize comfort, for specific occupants and activities (e.g., cooking, exercise, sleep). Using multiple independent units and compact duct runs offers more flexibility to design, according to occupant preferences. If the cost of changing ductwork in an existing house is prohibitive, ductless indoor units may be the solution. Performance can be improved by applying a heat pump system with a compact duct design Compact Duct Design for Heat Pumps Performance can be further improved by applying a heat pump system with a compact duct design, instead of a large, conventional duct design. During heating season, thermal energy is lost as conventional systems push conditioned air through long duct runs in unconditioned spaces. This heat loss through ducts can result in comfort issues and poor energy performance. In compact designs, duct runs are shorter and more centralized, with ducts running to interior walls and blowing toward exterior walls. With shorter duct runs and less opportunity for energy loss, contractors can install smaller indoor units with smaller and quieter fans that use less energy. Ductless indoor units for heat pump systems, such as recessed ceiling cassettes or wall mounts, don’t require ducts. Ducted air handlers and horizontal-ducted units are compact, making it easier to fit all the HVAC equipment and ductwork within the envelope. Indoor Air Quality Indoor Air Quality (IAQ) is particular to occupants, but less subjective than comfort Indoor Air Quality (IAQ) is particular to occupants, but less subjective than comfort. The primary objective of IAQ design is keeping pollutants from endangering occupant health. Contaminants of concern include particulate matter 2.5 (PM 2.5), acrolein, formaldehyde and volatile organic compounds (VOCs). PM 2.5, for example, can contribute to asthma, sinus congestion, coughing, skin rashes, brain plaque and cognitive issues, including headaches and sleep disturbances. Source control is the foundation of IAQ. In designing healthy homes, builders should avoid materials that off-gas formaldehyde and VOCs to limit the infiltration of pollutants. All-electric heat pumps align with the trend of limiting or eliminating the hazards of on-site fossil fuel combustion in healthy homes. After addressing source control, builders can apply methods and products for filtration, elimination and dilution. Whole-home Filtration The Minimum Efficiency Reporting Value (MERV) uses a scale of 1-20 to describe how effectively a filter can capture particles of a given size. A High Efficiency Particulate Air Filter (HEPA) with a MERV range of 17 to 20 and can remove 99.97% of airborne particles as small as 0.3 micrometers. When determining the level of filtration required, the impact of the static pressure drops associated with increases in the efficacy and depth of pleated filters considered. The duct design and Manual D calculations must account for pressure drops which cause air to move more slowly. Homes with multiple zones may have a mix of indoor unit styles, including ductless and ducted units. If a home owner requires higher filtration levels, HVAC contractors can install a complementary system purpose-built for whole-home filtration. High performance ventilation systems, ERVs and HRVs Healthy and comfortable homes use high performance ventilation systems to introduce fresh outdoor air. An energy recovery ventilator (ERV) or heat recovery ventilator (HRV) provides conditioned ventilation air to dilute pollutants and remove stale air, without significantly increasing heating or cooling loads. Humidity-balanced, conditioned fresh air may be directed to the air handler or ducted directly to zones served by ductless units. With modern construction methods, mechanical systems, knowledge of human physiology and help from immutable physical laws, HVAC contractors can help produce homes purpose-built for occupant comfort and health.

Reducing Your HVAC Carbon Footprint: How The Sector Can Become More Sustainable In The Journey To Net Zero
Reducing Your HVAC Carbon Footprint: How The Sector Can Become More Sustainable In The Journey To Net Zero

With ongoing efforts from governments across the globe to reduce carbon emissions and with an ever greater focus on sustainability, it is vital that the HVAC sector does its part in becoming more environmentally conscious. And, while there have been steps to become more sustainable, there is a huge amount that still needs to be done to make sure that many of the targets that have been set are attainable. In buildings, both large and small, industrial heating accounts for roughly two thirds of industrial energy demand and around a fifth of global energy consumption. Figures like this show the need to have efficient and environmentally-friendly HVAC equipment in place to make the crucial steps towards reducing the contributions these systems make to our carbon footprint. High energy consumption in construction sector A 2019 report by The International Environment Agency (IEA) showed that the buildings and construction sectors combined were responsible for over 30% of global energy consumption and nearly 40% of carbon emissions. This is indicative of the steps the sector needs to take to play its role in a more eco-friendly society, some of which are already underway. However, much more needs to be done if the UK is to reach its goal of reaching net zero carbon emissions by 2050. As we envisage what a post-COVID world might look like, businesses and governments are continuing to put sustainability and lower carbon emissions at the forefront of their planning and the HVAC sector is certainly no exception. But with change in the sector a daunting prospect, decision-makers often don’t know where to start. Smart Technology use in HVAC systems Smart HVAC uses sensors that integrate with a building’s automation system With the constant growth and greater deployment of smart technologies within the HVAC sector, this is certainly a way that systems can become more efficient. Smart HVAC uses sensors that integrate with a building’s automation system. These sensors then collect information about conditions throughout the building. Heat waves are now a far more common occurrence in the United Kingdom. The Met Office estimates they are up to 30 times more likely and will be a bi-annual occurrence by 2050. It is important that any uptake in HVAC usage doesn’t lead to a drastic increase in emission generation. This is one of the areas where smart systems will become crucial. Many scientists have been unequivocal in their sentiment that heat waves are a cause of greater emissions and expect temperature records in the UK and Europe to be broken more regularly, so sites will need to be equipped to handle these conditions. Regulating temperature with hand-held devices With wireless systems now much more commonplace, temperatures can be controlled easily from hand-held devices. With these new technologies, those managing the systems can also benefit from remote monitoring and maintenance, reducing the need to travel to the site for yet another environmental incentive. To accompany the smart systems, equipment including smart thermostats can be installed to maximize HVAC efficiency. Other smart systems available to businesses include smart furnaces and air conditioning units that are far easier to operate than their traditional counterparts. Reducing unnecessary ventilation While global temperatures continue to rise, air conditioning usage has increased and has contributed to greater levels of energy usage. A huge amount of needless emissions are generated by unnecessary ventilation, contributing heavily to heat loss and overall energy wastage. Recirculation of air is a traditionally lower energy cost method of retaining heat and keeping emissions low, however, we must be mindful of the risks associated with recirculating air. The risk of circulating diseases is negated somewhat with heat recovery ventilation, which both removes the risk of disease spreading and improves energy consumption. Efficiency performance of new AC units Air conditioning units in particular contribute significantly to a building’s energy consumption Air conditioning units in particular contribute significantly to a building’s energy consumption, equating to 10% of the UK’s electricity consumption and as such it is important that we bear in mind ways to counteract the emissions this creates. Global energy demand for air conditioning units is expected to triple by 2050, as temperatures continue to rise year on year. The efficiency performance of new air conditioning units will be the key, when it comes to ensuring that escalating demand does not equate to greater emissions. Another issue for suppliers and manufacturers to address is differing rates of consumption for AC units in different countries, with units sold in Japan and the EU typically more efficient than those found in China and the US. Modularization Modular HVACs have also become increasingly popular in recent years. Modular HVACs are responsible for heating, cooling and distributing air through an entire building, with their increase in popularity largely down to their greater levels of energy efficiency, cost effectiveness, flexibility and substantial ease of installation and maintenance. Modular HVACs can be tailored specifically for workspaces and they often allow work to be done on the systems without disturbing the workforce, achieved primarily through rooftop placement. Commercial workspaces are larger and often require differing needs to residential properties and can cater to a wide range of the specific requirements of work and commercial spaces. As we strive for lower carbon emissions, it seems that this trend will continue and will become a key area in reducing emissions that HVACs have traditionally generated. System maintenance and training To meet government and industry requirements, many new buildings will require HVAC systems that can be maintained simply in order to perform in a more energy efficient way. Many companies are looking at ways to become climate neutral and significantly reduce their footprint Many companies are looking at ways to become climate neutral and significantly reduce their footprint. Companies are following the likes of German-based company, Wilo Group, who have announced they are committing to sustainable manufacturing by developing a new carbon neutral plant and HQ in the next few years. Lowering carbon footprint As we continue to move towards an ever more environmentally conscious society, it will be of paramount importance for companies, governments and the public to think about ways in which we can lower carbon emissions. Smart technologies will certainly be at the forefront of this, negating many needless journeys and making it easier for industries to adjust settings and tackle issues remotely. Greater levels of training will help equip us with the tools to make sure we are best placed to reduce emissions and be more sustainable as a result. While the steps outlined above do show some progress and measures we can take, there is far more that we can do as a sector to significantly reduce HVAC’s carbon footprint and once we have moved beyond the impact of the COVID-19 pandemic, this will surely be at the front of industry leader minds.

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Sila Services LLC Acquired Fahrenheit HVAC To Deliver Exceptional Home Comfort Solutions
Sila Services LLC Acquired Fahrenheit HVAC To Deliver Exceptional Home Comfort Solutions

Sila Services LLC recently acquired Fahrenheit HVAC, adding Fahrenheit's commitment to reliably professional same-day HVAC repairs and installations to Sila's already impressive portfolio of companies. Fahrenheit has provided outstanding and affordable care to its customers for over three decades. Sila is an HVAC industry veteran, with an unwavering commitment to customer satisfaction, and has been delivering exceptional home comfort in heating, AC, plumbing and electrical services, throughout the Northeast and Mid-Atlantic, since 1989. Home comfort expert "By extending our reach and adding the highly trained Fahrenheit technicians' services to our already premier packages, we're taking Sila to the next level," said Lou Pellegrini, CEO of Sila. "We're extremely pleased to be welcoming the Fahrenheit HVAC family into ours and there's a reason we are both household names in the Southeastern Pennsylvania area. Because we treat your home like we treat our own – ensuring you have efficiently running systems and invaluable peace of mind." Sila's factory-trained and certified technicians serve over 500 homes a day With over 7000 ‘A’ ratings on Angie's List, earning its prestigious super service award for multiple years running, Sila is the complete home comfort expert. A preferred partner of Carrier, Google Nest, Lennox, Mitsubishi, Unico, and other manufacturers, Sila's factory-trained and certified technicians serve over 500 homes a day, with 100% satisfaction guaranteed every single time. Saving customers money Repairs: Dependable and prompt repairs that ensure customers never have to wait too long to get back to living life in comfort. Tune-Ups and Maintenance: Prevention is key to keeping heating and AC systems in peak shape, ready for extreme weather. Annual Sila tune-ups include a 15-point safety inspection and filter change. Maintenance plans keep systems running reliably and efficiently – preventing breakdowns and saving customers money. Replacements and Installations: When replacements or new installations are necessary, Sila helps its customers select the perfect solutions for the home or office that fit nicely into any budget with attractive financing. Go Green: For those considering greener options for heating and AC, Sila offers geothermal systems that use natural, sustainable energy from the ground.

LENNOX EMEA, Standard Unit Coolers Compatible With A2L Refrigerants
LENNOX EMEA, Standard Unit Coolers Compatible With A2L Refrigerants

A number of standard unit coolers from Friga-Bohn, which supplies a wide range of market-leading refrigeration solutions to the food industry, are fully compatible with A2L refrigerants. The unit coolers support use with both new A2L refrigerants such as R1234yf, R454C, and R455C, as well as existing HFC refrigerant solutions. As a result, a single unit can provide for present and future requirements, reducing inventory for wholesalers and easing selection choices for installers. The market for unit coolers is changing. The F-Gas regulation means that a ban is in place for new installations using refrigerants with a GWP (Global Warming Potential) of more than 2500. Furthermore, other refrigerants are having their availability limited by diminishing production quotas, which is consequently affecting prices. Refrigerant producers have to fall within a regulation-defined limit of Teq CO2 (carbon dioxide equivalent tonnes) per year. So opting to produce a refrigerant with a high GWP means less product availability, leading to a higher price. CO2 refrigerant Friga-Bohn can confirm that a number of its unit coolers offer compatibility with new A2L refrigerants CO2 has become the preferred refrigerant in high-capacity refrigeration installations due to its low GWP and good thermo-physic properties. However, for small/medium-capacity systems, the choice is not so obvious. CO2 is of course an option, but alternatives such as A2L refrigerants are very attractive as their constituent technology is similar to HFCs while offering a far lower GWP. To ensure simplicity of choice for installers, Friga-Bohn can confirm that a number of its unit coolers offer compatibility with new A2L refrigerants, as well as existing refrigerant solutions. This approach differs from other market systems, which are only suitable for one or the other. Wholesalers, therefore, benefit as they only need to stock a single type of unit cooler-one capable of meeting the requirements of both applications. A2L-compatible coolers The A2L-compatible coolers available from Friga-Bohn include MR and MH series ceiling units, NTA dual-discharge units, and 3C-A cubic units. Typical applications include cold rooms in cafes, hotels, bars, restaurants, local shops, minimarkets, and supermarkets, with options available to suit both positive and negative temperature conditions. Despite their low GWP (R1234yf, R454C, and R455C have a GWP of less than 150), A2L refrigerants carry a ‘slightly flammable’ security classification. For this reason, all Friga-Bohn unit coolers using A2L refrigerants have been subject to a comprehensive risk assessment, with INERIS, the French National Institute for Industrial Environment and Risks, providing full approval and validation. A2L refrigerants provide the opportunity to reduce environmental impact and comply with the F-Gas regulation A risk analysis is also necessary for each installation to ensure safety for users and the general public; a process that should take into account the entire refrigeration system as well as its environment over the product life cycle. Here, Friga-Bohn can offer several newly developed tools to help simplify this process for installers. The availability of these tools ensures that the ‘slightly flammable’ classification of A2L refrigerants should not be an obstacle in reducing the industry’s carbon footprint. Transitioning to lower GWP refrigerants In summary, A2L refrigerants are a good solution when transitioning to lower GWP refrigerants. They provide the opportunity to reduce environmental impact and comply with the F-Gas regulation for small/medium capacity installations. However, changing to A2L does require some technical knowledge. Here, Friga-Bohn is ahead of market competitors – the company is fully prepared and ready to help wholesalers and installers with any assistance they may require in helping the food sector achieve a safe and effective switch to a future based on low-GWP refrigerants. Friga-Bohn can also help wholesalers to educate installers about this important industry shift.

IWBI Announces New WELL Performance Rating Focused On Using Dynamic Human And Building Performance Metrics
IWBI Announces New WELL Performance Rating Focused On Using Dynamic Human And Building Performance Metrics

The International WELL Building Institute (IWBI) announces the upcoming launch of the WELL Performance Rating, a new designation rewarding building owners and operators for using measurable and validated building and human performance metrics to gain insights into health and well-being of the people inside and enhance conditions in their spaces based on those insights. The rating will consist of features drawn from the WELL Building Standard (WELL) along with new pathways and beta features that will be informed by the IWBI Performance Advisory, WELL Performance Testing Organizations (PTOs) and a host of industry pioneers in smart building technologies. Smart building technologies “The industry has done a great job of capturing environmental building performance metrics on site – energy and water use, for example – but we need to be able to marry these eco-friendly indicators with health performance metrics to enable balanced choices about the health of planet and the health of people,” said Rachel Hodgdon, President and CEO of IWBI. The industry has done a great job of capturing environmental building performance metrics on site" “With this incredible and diverse array of partners, advisors and other contributors, we are confident that the new rating will unlock and accelerate the use of smarter, more integrated approaches to improve and enhance well-being and performance.” The WELL Performance Rating will be comprised of WELL features specific leadership thresholds air and water quality, thermal comfort, acoustics, lighting and experience, helping projects both quantitative and qualitative to track, monitor and improve the performance of both the buildings and the people inside. Stand-Alone designation IWBI’s global network of 42 WELL Performance Testing Organizations, IWBI member organizations and its broader community of over 18,000 WELL Accredited Professionals (WELL APs) and registrants in more than 100 countries will support customers in their pursuit of the WELL Performance Rating. This new designation will add to a growing suite of WELL ratings that includes the WELL Health-Safety Rating and the forthcoming WELL Health Equity Rating. Each can be achieved as a stand-alone designation or milestone along the way to WELL Certification at Bronze, Silver, Gold or Platinum level. For WELL Portfolio participants, achieving these ratings will contribute to their WELL Score. IWBI members contributing to the development of the WELL Performance Rating include Aircuity, Carrier, CETEC, Cognian Technologies, Honeywell, Johnson Controls, Kaiterra, Lennox International, Schneider Electric, SGS, Thornton Tomasetti and Trane Technologies. Creating healthy buildings We have led the industry in HVAC and building health and are currently pursuing certification" What industry pioneers say about the WELL Performance Rating: “Like WELL, we have long been committed to taking a holistic approach to the full spectrum of factors that create healthy buildings for people, including air quality, safety, and [functional] conditions such as thermal comfort, lighting, sound and environmental issues that contribute to better cognitive function and well-being.” “We have led the industry in HVAC and building health and are currently pursuing certification under the rigorous WELL v2 standard at our own world headquarters. Carrier is proud to support the WELL Performance Rating, which will provide people with confidence to return to the things and places they love and missed,” said David Gitlin, Chairman and CEO, Carrier. Innovative building solutions “At Honeywell, we’re not waiting for the future, we’re making it by creating innovative building solutions that foster and improve well-being and unlock positive outcomes at scale. By collaborating with IWBI on the WELL Performance Rating, we’re ushering in a new era of building performance, bridging building health while being conscious of environmental impact, and equally important, inspiring innovation and spurring market transformation that advances occupant well-being and productivity,” said Vimal Kapur, President and CEO, Honeywell Building Technologies (HBT). At Honeywell, we’re not waiting for the future, we’re making it by creating innovative building solutions" “As we continue to build on our history of more than 135 years delivering smart, healthy and sustainable buildings, we are excited about the opportunity to collaborate on the launch of IWBI’s WELL Performance Rating. The Rating will serve as a powerful accelerant that we know the market needs right now to help us all realize our shared vision for healthy buildings, while also aligning seamlessly with our proven and leading work to improve operating efficiency, boost productivity and advance sustainability,” said George Oliver, Chairman and CEO, Johnson Controls. Pioneering integrated solutions “As we move more decisively and strategically to meet our decarbonization goals in all buildings all around the globe, it’s imperative that we are just as ambitious in seizing the accompanying opportunity to optimize these spaces for the health of the people inside.” “By leveraging the science behind WELL and with today’s launch of the WELL Performance Rating, we are poised to chart a path to remake the buildings of the future and continue to deliver on Schneider Electric’s longstanding mission to pioneer integrated solutions that leverage the power of digitalization to achieve peak performance, efficiency and reliability, all while enhancing occupant health,” said Jean-Pascal Tricoire, Chairman & CEO, Schneider Electric. Improving human experience Now more than ever, people need safer, healthier, and more efficient indoor spaces" “Now more than ever, people need safer, healthier, and more efficient indoor spaces. We focus on helping building owners and operators assess, mitigate and monitor indoor environmental quality to ensure occupants’ well-being and the building’s performance. The WELL Performance Rating helps validate that the right measures are being taken for people to thrive in the spaces where they live, learn, work and play,” said Dave Regnery, CEO, Trane Technologies. “AI and IoT technologies perform at their best when employed to improve human experience. We are proud to collaborate with IWBI through the WELL Performance Rating as we evolve our services to deploy technology-based solutions to address changing market needs. This initiative supports us on our journey to becoming a more sustainable, data-driven company and our commitment to enabling a better, safer and more interconnected world for all our stakeholders,” said Frankie NG, CEO, SGS, WELL Performance Testing Organization. Evidence-Based solutions "IWBI has been instrumental in driving the evolution of building occupant health and well-being, cementing scientific rigor and robust measurable goals as a means to advance building performance. The innovative WELL Performance Rating is set to become another ground-breaking tool,” said Adam Garnys, Principal Consultant Strategy, and Dr. Vyt Garnys, Managing Director & Principal Consultant, CETEC, WELL Performance Testing Organization. “There is new urgency in how we shape, guide and foster advancements in building performance to better align with the science of supporting human health. Through this collaborative launch of the WELL Performance Rating, we are doubling down on that promise of actionable, evidence-based solutions to drive continuous improvement across the key health metrics that help enhance productivity, increase comfort and support well-being,” said Liam Bates, Co-Founder and CEO, Kaiterra, IWBI Performance Advisor.

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