HVAC systems are the most common home repair, representing 19 percent of service incidents facing homeowners. More than half of homeowners (53%) have faced a home repair emergency of some kind in the past 12 months. Furthermore, about a third of homeowners have US$ 500 or less set aside to pay for emergency home repairs, with some 17 percent having no money at all set aside for emergency home repair work. 10th Edition of the Biannual State of the Home Survey These are among the results of the...
A new cloud-based solution enables HVAC professionals to access VRF systems remotely to diagnose service issues and lessen the time and costs of providing service. CoolAutomation’s Remote HVAC Service Solution enables HVAC service providers to remotely troubleshoot issues by analyzing real-time and historic data trends and analysis. They receive automatic error and anomaly notifications in their office or on their mobile phones. “The remote service solution provides the tools that H...
Newer buildings tend to be designed to be ‘green’, but what about older existing buildings, which still represent the largest share of environmental impact? There is more work to be done in the retrofit sector; and improving environmental performance of older buildings often involves ‘deep retrofits’ that are costly and impact multiple factors inside a building. In the COVID-19 era, there is also growing concern about needs such as circulating outside air, increasing hum...
Hiring and retaining employees in the HVAC market is an ongoing challenge. The U.S. Bureau of Labor Statistics projects that employment of heating, air conditioning, and refrigeration mechanics and installers will grow 13 percent between 2018 to 2028, much faster than the average for all occupations. As the economic emerges from the COVID-19-induced slowdown, the industry’s workforce challenges will again be top-of-mind. Now is a great time for HVAC companies to update and expand their re...
Welcome to our Expert Panel Roundtable, a new feature of HVACInformed.com. We will be asking timely questions about the HVAC market and seeking out experts in the field to provide responses. Our goal is to promote a useful exchange of information on a variety of topics and to create a forum for discussion of important issues facing the industry. Launching this new feature in the middle of a global pandemic made choosing our first question quite easy. We asked our Expert Panel Roundtable: What ha...
J2 Innovations, the developer of the easy-to-configure and use software platform for building automation and IoT applications, FIN Framework (FIN), unveiled a strategic partnership with Clivet SpA that will enable the global maker of specialist HVAC systems to develop innovative HVAC plant and building optimization solutions. By leveraging FIN, OEMs can rapidly launch their own software and control products to the market by leveraging FIN’s open platform and wide range of building au...
Emerson introduced two new compressed air dryers designed to significantly extend maintenance intervals, minimize downtime and reduce energy costs in rail applications, including brakes and door control. Typically, air dryers have an average service interval of less than two years. The AVENTICSTM RDD (Roll-Up Dessicant Drying) and RDDmin air dryers, have a service interval of eight years or 25,000 operating hours. The new products feature a proprietary adsorption medium that removes humidity from compressed air systems more efficiently, reducing energy usage with a smaller envelope size and weight. The dryers’ shock and vibration resistant design further enhances their reliability in tough rail applications. brake control circuit Humidity in compressed air can cause corrosion and ice blockages at low temperatures, often disabling door systems or freezing valves in the brake control circuit. Until now, conventional dryer systems relied on a granular adsorption medium. The shocks and vibrations that occur during rail operations cause channeling, air bypass and dust generation, which leads to a significant loss in drying performance. Emerson’s AVENTICS RDD technology uses adsorbent crystals immobilized in a durable polymer support structure Consequently, the dew point increases. High water loading can cause a breakdown of the granulate bed resulting in frequent material changes and a reduced service life. To solve these problems, Emerson’s AVENTICS RDD technology uses adsorbent crystals immobilized in a durable polymer support structure, which is produced in a continuously embossed sheet and rolled up to tightly fit into a barrel-type housing for high shock and vibration resistance. excessive water loading Unlike competing products using desiccant beats, the AVENTICS dryers resist excessive water loading and fully recover afterwards. This ensures constant performance throughout the lifetime of the product and reduced life-cycle costs. The RDD dryer is used for main air supplies on trains, whereas the RDDmini is used for auxiliary air supply, to driver seats for example. The efficient design means that the overall envelope size for both dryers is half that of other dryers currently available on the market, allowing for smaller envelope sizes and lower unit weight. The moisture uptake allows for a much higher efficiency air consumption rate of less than 15%, which reduces energy costs. Purge loss typically ranges above 20% for conventional products.
There is a demonstratable link between humidity and the infectivity and longevity of a variety of viruses, such as influenza and coronaviruses, according to a new whitepaper by Munters, a globally renowned company in energy-efficient and sustainable air treatment solutions. Titled ‘How Humidity Control Can Reduce Viral Infectivity and Longevity’, the scientific report addresses how it is possible to reduce the transmission and longevity of harmful viruses by controlling indoor Relative Humidity (RH) levels. ‘How Humidity Control Can Reduce Viral Infectivity’ The paper is based on gathered research, including studies on the efficiency of respiratory droplet transmission at humidity and temperature, virus survival and transmission at absolute humidity levels, and the effect of environmental parameters on the survival of airborne infectious agents. Among the most notable and timely findings, the research demonstrates that at RH levels between 40 and 50%, many types of common and harmful viruses such as influenza and coronaviruses are rendered inert much more quickly than at RH levels of less than 20%. “Viruses that cause respiratory illnesses are often transmitted by viral particles through coughing, sneezing, talking and breathing,” said Martin Ginty, Global Pharmaceutical Industry Manager for Munters. Controlling indoor Relative Humidity (RH) levels By effectively controlling indoor climates, it is possible to limit the transmission of harmful viruses" Martin adds, “Research referenced in our whitepaper suggests that maintaining an indoor RH% level between 40 and 50% yields the maximum protective effect from both aerosolized and settled virus particles and that by maintaining these levels, it is possible to contribute to a healthier, safer environment.” “This evidence is particularly relevant in locations where winter tends to consist of low outdoor temperatures and low indoor humidity, as these conditions offer a favorable environment for viral transmission,” added Ginty. Martin further said, “By effectively controlling indoor climates in these locations, it is possible to limit the transmission of harmful viruses.” Maintaining target RH levels Maintaining target RH levels can be accomplished using humidity control solutions which facilitate precise RH control for indoor environments. Furthermore, the whitepaper concludes that humidity control is always useful, but particularly during a typical ‘flu season,’ where outdoor temperatures and absolute humidity tend to be lower.
Johnson Controls announced the latest addition to its suite of LUX Products: the LUX CS1 Smart Thermostat. When paired with the LUX App, the LUX CS1 provides a variety of easy-to-use features for effortless comfort, control and savings. At $99 MSRP, the Energy-Star certified LUX CS1 is priced well below comparable thermostat models to make the benefits of smart technology even more accessible for homeowners and building operators alike. “The LUX CS1 Smart Thermostat is all about accessibility. Its price point, approachable design and intuitive technology make it one of the most affordable, feature-packed smart thermostats on the market today,” said Rob Munin, General Manager, Thermostats and Sensors at Johnson Controls. Internet of Things For smart technology beginners, it’s the perfect gateway to connected comfort, control and savings" “The LUX CS1 perfectly marries traditional thermostat functionality such as large digits with advanced features including geofencing powered by the LUX App. For smart technology beginners, it’s the perfect gateway to connected comfort, control and savings.” LUX Products, a Johnson Controls brand, is an innovator in indoor comfort. From manual to smart thermostats, the company’s range of technology includes a wide variety of well-designed and feature appropriate thermostats for every setting and budget. The LUX CS1 brings a new level of affordability to the LUX thermostat line up and features these smart capabilities: Minimal set-up: Flexible installation using either a Power Wire, C-wire or LUX Power Bridge. Then, hook it up to Wi-Fi for a secure, reliable connection. Intuitive design: The simple interface features a straightforward display including large digits, backlighting and easy access to temperature and scheduling settings. Smart tech: Connects to the Amazon Alexa and Google Assistant for hands free control and voice activation. It also works with IFTTT (If This Then That), enabling LUX CS1 users to create a unique Internet of Things (IOT) experience together with other mobile applications and devices. Smart app: Compatible with the LUX App to control temperature from anywhere, plus tap into geofencing and smart scheduling for greater energy and cost savings. Peace of mind: Custom alerts provide notifications about abnormal room temperature or filter replacement requirements. Extensive compatibility: Designed for a wide range of heating and cooling systems to fit within most homes and buildings. smart thermostat capabilities Users can download the LUX App from their smart phone to monitor and adjust the LUX CS1 from anywhere, at any time. The app is compatible with the entire suite of LUX smart thermostats including the LUX KONO and LUX GEO. This user-friendly app enhances smart thermostat capabilities thanks to these features: Always-on: Monitor and adjust the thermostat’s temperature and settings from anywhere for 24/7 comfort, control and peace of mind. Energy savings: Home and Away Aware geofencing monitors occupancy and automatically makes energy efficient adjustments. Cost savings: Smart scheduling, learning and adaptive tips and demand response programs - where available - provide potential savings. Multiple thermostat connectivity: Homeowners can connect up to 10 thermostats, and businesses can take advantage of unlimited connectivity within a single app. enhanced user interface Plus, users can look forward to the release of the new LUX App coming later this summer. The new app will feature an enhanced user interface including personalized settings and smart features for energy and cost savings. The LUX CS1 Smart Thermostat is available for purchase now at LuxProducts, BestBuy and local wholesalers. It will also be available soon at Amazon. Users can download the LUX App from the Apple App Store or Google Play.
Johnson Controls has introduced the Envirco IsoClean filtration system designed to easily and economically create a negative pressure isolation room/environment that meets OSHA and CDC TB guidelines as the world navigates COVID-19 pandemic. IsoClean can be used as a positive pressure clean air recirculating system in clinics, waiting rooms, hospital emergency rooms and other confined areas. The system can also be used as a partial or complete exhausting unit to construct a negative pressure isolation room space. economical solution The system can be easily rolled from one room to another and fits into areas with limited floor space" “The IsoClean is an easy and economical solution that is ideal for health care professionals looking to create a negative pressure, isolation patient room,” said Mark Mattingly, Vice President and General Manager, Air Filtration Products, Johnson Controls. “The system can be easily rolled from one room to another and fits into areas with limited floor space. The portability and practical applications this solution offers is optimal for facilities looking for an economical investment.” Low cost isolation room: Simply roll the IsoClean into a standard room, connect flexible ducting to the 6 in (152 mm) collar on the top of the unit for partial exhaust or to the optional 8 in. (204 mm) flanged collar for total exhaust and vent the purified air to the exterior through a window or wall. clean air recirculation Flexible applications: The versatile IsoClean can be used as a clean air recirculating unit, a negative pressure unit or as a split system to create both negative pressure and clean air recirculation by simultaneously exhausting some of the air out while recirculating the remainder back into the room. Hospital and other Applications Negative Pressure Rooms Emergency Rooms Waiting Rooms Sputum Induction Aerosol Pentamidine Treatment Intensive Care Units Bronchoscopy Rooms Renal Dialysis Rooms Clinics Nursing Centers Physician Offices Homeless Shelters Addiction Recovery Centers Correctional Facilities
J2 Innovations, the developer of the easy-to-configure and use software platform for building automation and IoT applications, FIN Framework (FIN), has launched the FIN microBMS, a compact feature-rich building management software package that enables its OEM partners to deliver easy-to-install solutions for small to mid-sized buildings across multiple sites. The entry-level FIN-based system is a powerful simple-to-use plug-and-play solution for efficient building management that has removed much of the complexity and cost found in many of BMSs from building control specialists. Fully-featured versatile solution “The driving force behind the development our first FIN microBMS had been the obvious lack of options in the market for managing smaller scale building environments,” explains Jeremy Wolfe, VP Sales Americas at J2 Innovations. “This isn’t a pared-down version that has compromised on functionality, the power of FIN Framework delivers a fully-featured versatile solution that is simple enough for installers [non-specialists] to configure and use yet offers high levels of automation and integration – engineered properly, the best things do come in small packages.” Users can monitor, control and visualize all the operational and energy assets such as HVAC, lighting and security systems inside a building or buildings across numerous sites to optimize the comfort levels, safety and energy efficiency. A dashboard flags the status or health as well as maintenance requirements of all the connected devices while trend monitoring and utility metering are reported by the system. Plug & play simplifies the installation of any pre-configured hardware solutions. Data-management, analytics and simplified workflows Natively built for tags and support for the Project Haystack 4 open standard FIN provides an intuitive user-experience with intelligent data-management, analytics and simplified workflows. J2’s Edge2Cloud capability provides operators with a secure remote connection to the Micro BMS for accessing building data, servicing and upgrading of the system. As Chris Irwin, VP Sales EMEA states: “The Energy Performance of Buildings Directive (EPBD) has boosted the energy performance of buildings across the EU and recent amendments have now made BACS mandatory for certain-sized buildings i.e. in the small-medium and simple category. The FIN microBMS meets the requirement of providing more sophisticated automation to help save energy and money.” Irwin continues: “In the future, all commercial buildings will be connected with intelligent controls. This shift towards smarter controls makes the FIN microBMS ideal for multi-site operators or electrical and mechanical contractors working on small retail premises, restaurants, local authorities, small offices and leisure sites.”
NearU HVAC Services, announced the successful completion of the acquisition of Carolina Heating Services in Greenville, SC. With this acquisition, NearU has established a multi-state footprint and tripled its employee base within the first four months of its inaugural acquisition. "Carolina Heating Services has established itself as the market leader in Greenville since the late 1980's and has built a strong local brand. The company's dedicated focus on customer experience and employee training is culturally aligned with NearU's steadfast vision to be the preferred service provider and the preferred employer in the markets in which it operates." strong local brand I look forward to helping implement NearU's transformational vision for Carolina Heating Services" "We look forward to implementing our value creation plans for Carolina Heating Services with the help of their incredibly talented team and we welcome the customers and employees of Carolina Heating Services to the rapidly growing NearU family," said Ashish Achlerkar, NearU's Founder and CEO. "After nearly four decades of building a strong local brand, providing career paths to hundreds of employees, and serving thousands of customers, we wanted to transition the company to a growth-oriented, culturally-aligned partner for the next chapter of Carolina Heating Services' growth. I am highly confident that the NearU team will take excellent care of our customers, invest in career opportunities for our employees and take our legacy to greater heights." deliver efficient transaction "The NearU team fulfilled their promise to deliver a highly confidential and efficient transaction at a fair value for our shareholders. Their approach is honest and straightforward, and they remained steadfast in their commitment to the agreed-upon deal terms despite the global pandemic and uncertain macroeconomic circumstances," said Scott Kelly, the Founder and President of Carolina Heating Services. Under NearU's ownership, the Carolina Heating Services NearU team will be led by Connie Caldwell, a 16-year veteran of the Company, who added "I look forward to helping implement NearU's transformational vision for Carolina Heating Services and for the growth opportunities for all of our team members. I am greatly confident that the NearU team will significantly raise the bar for customer and employee experience in the HVAC industry."
Many of us are spending more time at home. Given that work and home lives are becoming more intertwined, it makes sense to create a “comfort zone” in the place where people spend the most time. I am speaking about the benefits of zoned HVAC comfort control through duct-free split systems. Imagine offering your customers the ability to cool their bedroom at night without having to cool the whole house. Maybe they want to cool their home gym to 68 degrees while leaving the playroom at 76 degrees. Duct-free systems offer the ability to individually set preferred comfort settings for each individual zone or room in the home. Control the temperature, humidity and even the volume and direction of airflow, all according to personal preference. Imagine offering your customers the ability to cool their bedroom at night without having to cool the whole house Pandemic trends During the pandemic, one trend we are seeing is more consumers adding duct-free systems to spare rooms to function as a home office or the conversion of a garage for a home theater or as a social-distanced gathering place for family and friends. There are many options today to meet all of these needs and more. LG offers a variety of stylish, duct-free indoor units ranging from a smoked glass mirror finish to traditional white. You can offer your customers the ability to customize their space with the Art Cool Gallery, a unit that looks like a picture hanging on the wall, allowing them to add their own artwork or photographs. With so many options, there is no reason not to have the comfort you deserve. Each unit is powered by an energy efficient inverter with heat pump technology – some offering up to 28 SEER. The SEER calculates air conditioning and heat pump cooling efficiency. The higher the number, the less you will spend on energy costs. These systems – many of which are ENERGY STAR® certified – are built with cost-savings in mind, so whether it is low installation costs or reduced lifetime costs, your customers will be surprised to see the money they will save with duct-free HVAC technology. app technology “Smart” indoor units from LG come equipped with Wi-Fi capabilities and on some other models, this function can easily be added using a separate module. This allows control via the included wireless controller or from a smartphone. The free app for both iOS and Android is called LG ThinQ®. This is where we have a unique advantage over the competition. The app is the same communication platform used with LG home appliances and TVs. When a homeowner presses the “away mode” it will set all of the indoor HVAC units to their predetermined temperature, and at the same time other smart appliances in the home - refrigerator, dishwasher, washer and dryer - will be set to a low energy consumption mode. Imagine the savings! The app also allows the control of HVAC modes (Heating, Cooling, Dehumidification, Auto Changeover, or Fan Only), temperature, airflow direction/vane movement (up, down, side to side), fan speed and of course power (on/off). Users can control one or several units and each can be set up for group control. For instance, a parent might want to control all of the zones in the house, but only give children control of their room. Duct-free units give everyone their own personal level of comfort. There is also the option of installing these units in rooms that are typically warmer in the summer months or difficult to keep cool as temperatures rise. A connected home LG units can also be voice-controlled when paired with Amazon Alexa or Google Home For a more connected home, any of the LG units can also be voice-controlled when paired with Amazon Alexa or Google Home. This offers the convenience and freedom to use simple commands to set a desired temperature in various areas, such as: “Alexa, set the master bedroom to 70 degrees,” or “Alexa, set the office to heating.” So how does it work? The inverter compressor can adjust the speed of the compressor in 1 hertz level increments to match the load. This allows the outdoor condenser to operate at the minimum-required hertz level to meet the load and achieves a desirable energy efficiency at lower sound levels. The indoor unit also maintains greater cooling and wicks the moisture from the air to provide lower humidity levels. The reward is monthly energy savings on utility bills. These duct-free systems allow homeowners to efficiently make the most of all available spaces.
Behind most modern portable and fixed evaporative cooling systems is a component known as rigid evaporative media. At first glance, this component appears to be a simple block of corrugated cardboard-like material. Outside appearances are often deceptive though, and this is most assuredly the case with evaporative media. Within the intricately and proprietarily designed flutes and angles is the ability to cool many everyday aspects of our lives, from data centers that support our daily online lives to the agriculture environments where our food is sourced. While you may have never heard of evaporative cooling, it is all around you. The simplest definition of evaporative cooling is cooling with water. Used since the ancient Egyptian days to generate natural cooling, a few examples of evaporative cooling at work include the cooling sensation felt when climbing out of a swimming pool, or feeling the cool breeze blowing across a lake. By evaporating water, the temperature of the air in contact with the liquid water will lower as an endothermic reaction takes place. During this reaction, the liquid water changes to a gas state and the temperature of the air lowers. This is where rigid evaporative media comes into play. The simplest definition of evaporative cooling is cooling with water Rigid Evaporative Media As mentioned earlier, rigid evaporative media is the technology behind portable evaporative coolers and fixed evaporative cooling applications. The quality of the evaporative media chosen for these systems makes a crucial difference in the effectiveness of the cooling achieved. The expert engineering of rigid evaporative media ensures even water distribution and is imperative to maximize the interaction between air and water for the most efficient evaporation, and therefore, the most effective cooling. Composing the media of only superior raw materials is the key aspect to producing strong media that does not easily break down in water, and it is designed in a way that the water self-cleans the media when it runs across it. Higher-end evaporative media is coated with a proprietary blend of resin material to ensure longevity and inhibit the growth of algae. Reputable evaporative media manufacturers have the ability to meet specific performance specifications, considering a customers’ desired pressure drop, saturation, wet out rate and more. Evaporative cooling offers an energy efficient, environmentally friendly and economical cooling solution over traditional air conditioning methods. There is no need for refrigerants or a compressor, meaning there is no additional heat to vent from the system. The expert engineering of rigid evaporative media ensures even water distribution and is imperative to maximize the interaction between air and water for the most efficient evaporation So where exactly does this cooling technology meet daily life? Food chain supply Did you know that agricultural applications from poultry houses, dairy farms, swine industries and greenhouses all utilize fixed evaporative cooling? Before we find food options on grocery store shelves or restaurant tables, there has been a process to provide the freshest, best-quality option for consumers. Meat and dairy production Whether talking about egg-laying hens, broilers or free-range chicken, it has been proven that cooling improves the production and efficiency rates in chicken houses. The same is true for the dairy industry. Cooling the cows and reducing heat stress improves overall milk production. When it comes to meat production, it should be noted that animals such as pigs and broilers do not have sweat glands. Due to this physiological limitation, heat is intensified if their environment is not well managed. It’s important to keep these animals cool – from small, artisan farms to large, agricultural operations – to ensure production meets the quality and quantity demand of the food chain. Greenhouses Greenhouses are another area that must maintain a delicate balance of keeping temperatures from soaring when dealing with certain fruits, vegetables, herbs and flowers. As growers seek to find year-round crop growing options, evaporative cooling in greenhouses plays an important role in providing nutritious options in the food supply chain. This touches consumers who have become more conscientious about buying local and embracing farm-to-table practices. Data centers They are the backbone to the fibers of our online and social media lives. Computers that power our cloud data run 24/7. Cooling the air surrounding these machines via the fixed evaporative cooling system helps reduce the load on a traditional air conditioning approach. According to a trade publication on the matter, growing demand for digital services and data centers means effectively meeting the power requirements of the IT industry in some geographies, which often means more and larger facilities. Media streaming makes up the biggest portion of global traffic, and it is steadily increasing to become the energy guzzler of the internet. This consumption essentially equates to energy usage and high demand on data centers during high traffic times such as the first half of 2020 during the unprecedented global quarantines that were put in place. Increased online data usage through work from home initiatives and added streaming applications will only increase the burden on data centers. Reducing the heat generated is a benefit of using a fixed evaporative cooling system to ensure data centers run efficiently, and consumers have the internet and social platform usage they want when they want to access it. Gas turbines Gas turbines are used to create mechanical energy from a combustible fuel source to provide electrical energy to homes and businesses. Studies have shown gas turbines located in regions that experience high seasonal temperatures are prone to significant losses on both efficiency and output during these high-temp seasons. In response, engineers have begun installing evaporative coolers to cool the ambient air, resulting in increased performance and output. Portable evaporative coolers They provide cooling in a variety of settings from automotive shops, manufacturing facilities, and warehouses to outdoor sporting events and recreational settings, as well as home patios. Formerly referred to as swamp coolers, modern-day evaporative coolers are more energy efficient and effective thanks to the quality of rigid evaporative media that evaporates the water. Portable coolers create mobile cooling where traditional air conditioning is ineffective or cost prohibitive. As countries and governments focus more and more on the ravages of heat stress and heat-related illness in the work place, employers are looking to evaporative cooling as an effective and cost-efficient method of protecting workers and avoiding government fines. As consumers look for more green options, evaporative cooling is considered to be an environmentally friendly solution. Utilizing natural elements and staying away from harsh chemicals used in traditional air conditioning options, rigid evaporative media in a fixed or portable system can provide efficient and cost-effective cooling relief.
Today’s homes are built with more insulation than ever and are known for being airtight. While this practice lowers energy bills, harmful contaminants are also kept in, which reduces the overall indoor air quality (IAQ). The effects of poor IAQ are most acute in areas of high humidity or uncontrolled moisture, such as the bathroom. Accumulation of these substances can result in health problems and mold growth as well as the deterioration of furniture and paint. Contractors make great efforts to prevent these dangerous conditions through proper ventilation. In fact, state and local governments also mandate ventilation – instilling it into the building code. For decades, ventilation was achieved through the ubiquitous AC, or alternating current ventilation, fans. The last decade has given rise to DC, or direct current, fans that offer contractors and homeowners more efficient and feature-rich options. In summary, DC motor technology provides reliability, functionality, quietness and energy efficiency. Unparalleled Reliability DC motors are engineered to outlast typical AC motor models by as much as 70 percent. Testing often involves running fans continuously under harsh conditions. These assessments have shown that DC brushless fans can run a minimum of 70,000 hours – the equivalent of eight years straight – without any disruption to performance. DC motors are smarter than traditional AC options Cutting-Edge Functionality DC motors are smarter than traditional AC options because they incorporate a PCB or printed circuit board. PCBs allow software to be written into the fan for greater functionality. They enable valuable features, like humidity sensors and motion sensors. PCBs also enable safety precautions like lock protection, which stop power to the motor when it becomes jammed. In addition, a PCB can preserve the life of the motor by powering it on gradually through what is known as a “soft-start” function. Much like a car’s engine, aggressive stops and starts can decrease the life of a motor. Unlike AC fans, DC fans can come pre-programed with this start and stop functionality. DC motors are engineered to outlast typical AC motor models Virtually Silent Operation Ventilation fans are infamous for creating loud noise and disrupting peace in the bathroom. Not operating the fan can lead to mold and mildew, however. Rental properties are often an unwitting victim, since tenants are less inclined to run a loud bath fan since they don’t have a stake in the property. A virtually silent fan will encourage regular use, saving building owners substantial repair costs. DC motor fans are known for their quiet operation, with many fans rated at less than 0.3 sones – the lowest possible sound rating in the industry. This can be quieter than many kitchen refrigerators. An Energy-Efficient Marvel A state-of-the-art DC motor fan uses up to 85 percent less electricity than an AC model A state-of-the-art DC motor fan uses up to 85 percent less electricity than an AC model. This can save homeowners, businesses and landlords on their energy bills. Due to their many benefits, DC fans are among the most efficient ventilation fans available. Many exceed ENERGY STAR® requirements for efficiency – the industry benchmark set by the U.S. Environmental Protection Agency – by as much as 350 percent. Homeowners and tenants want the bathroom to feel serene, comfortable and appear aesthetically pleasing. Ventilation fans can easily be overlooked in a large construction project, but are the unsung hero of IAQ. DC fan solutions can safeguard long-term health, preserve structural integrity and maintain a bathroom’s tranquility for years to come. As sustainability and efficiency come into focus in new construction and remodeling projects, the adoption of DC fans will only continue to gain pace.
Which measures can lessen the spread of the novel coronavirus, and which can make it worse? As the pandemic continues to unfold, there is an overabundance of advice on the subject as it relates to HVAC systems. For example, one theory goes that air conditioning, by removing humidity from the air, may enable infectious droplets to linger longer than they would outdoors or in another space where humidity is higher. More humidity can weigh down viral droplets as they float through the air. Does it make sense, therefore, to turn the AC off to minimize spread of the virus? Not according to ASHRAE, which officially opposes the advice not to run residential or commercial HVAC systems. In fact, ASHRAE asserts that keeping air conditioners on during this time can help control spread of the virus. Ventilation And Filtration May Control COVID-19 Transmission of SARS-CoV-2 through the air is sufficiently likely that airborne exposure to the virus should be controlled, says ASHRAE, the American Society of Heating, Refrigerating and Air-Conditioning Engineers. Changes to building operations, including the operation of HVAC systems, can reduce airborne exposures, says the professional association. ASHRAE asserts that keeping air conditioners on during this time can help control spread of the virus Ventilation and filtration can reduce airborne concentration of the novel coronavirus and thus the risk of transmission through the air. Furthermore, unconditioned spaces can cause thermal stress to people that may be directly life threatening and may also lower resistance to infection. In general, disabling of HVAC systems is not a recommended measure to reduce the transmission of the virus, ASHRAE concludes. ASHRAE’s Epidemic Task Force In response to the pandemic, ASHRAE has created an Epidemic Task Force comprised of experts to address the relationship between the spread of disease and HVAC. “When called upon by circumstances to assist in situations such as the COVID-19 pandemic, our technical and standards committees act within their spheres of competence to do whatever they can to help,” says William Bahnfleth, chair of the ASHRAE Epidemic Task Force. Also, ASHRAE’s Environmental Health Committee has updated a Position Document on Infectious Aerosols. Observational studies and modeling of COVID-19 suggest the likelihood of transmission through the air via aerosols. Evidence-Based Infection Control ASHRAE pledges to take full advantage of the knowledge among its members to create evidence-based infection control practices during this pandemic and prior to future pandemics. The society will also conduct training on engineering guidelines and operation of interventions that promote healthy air quality, which are not always understood in the context of building design, construction and operations. Observational studies and modeling of COVID-19 suggest the likelihood of transmission through the air via aerosols ASHRAE will continue to support research that advances the knowledge base of indoor air management strategies aimed to reduce occupant exposure to infection aerosols. The association’s Healthcare Facilities technical committee has worked to produce guidance that can be implemented immediately to help hospitals and clinics cope with increasing volume of COVID-19 cases. Guidance includes design of existing infection isolation, intensive care and critical care rooms. Guidance also covers how to create additional observation/segregation rooms for a small-scale admission surge as well as to establish wards/suites for a large-scale surge.
A fuel called “Bioheat” is made by blending biodiesel made from organic and recycled products with ultra-low sulfur heating oil. The feedstocks used to make biodiesel include vegetable oils, animal fats, or recycled restaurant grease. About half the biodiesel produced in the United States is made from soybean oil. Blends are designated in percentages – a 5% blend of biodiesel with heating oil is B5, a 10% blend is B10, and a 20% blend is B20. Blends up to 5% are called “Bioheat,” while blends from 6-20% are “Bioheat Plus.” Blends from 21-100% are “Bioheat Super Plus,” and ongoing research is under way on higher percentage blends. The process of blending biodiesel into heating oil must meet ASTM D396 and 6751 specification and standards. Biodiesel-based Heating Oil Much of the home heating oil currently used in the United States contains biodiesel, but its use is not required in every state in New England, where the cold climate favors use of heating oil over electric heat pumps. The New York Heating Oil Association has pushed for mandates to use B20 blends by 2034, with the percentage of biodiesel increasing gradually from a B5 blend required in 2017. New York is the only state with an active mandate. Connecticut, Rhode Island, and Vermont require all neighboring states to have active mandates before laws go into effect. Although Massachusetts implemented a Bioheat mandate in 2010, it was subsequently replaced with a voluntary program because of costs. Lowering The Carbon Content The process of blending biodiesel into heating oil must meet ASTM D396 and 6751 specification and standards The home heating oil industry is concentrated in five Northeast states: New York, Massachusetts, Maine, Pennsylvania and Connecticut, which use 3 billion gallons of heating oil per year between November and March, according to the Energy Information Administration. The addition of biodiesel lowers the carbon content (and thus the environmental impact) of heating oil. The U.S. Environmental Protection Agency says biodiesel reduces greenhouse gas emissions, including nitrogen oxide. The process of making biodiesel from renewable and organic sources also boosts the environmental profile. Greenhouse gases emitted by the heating sector are significant. For example, in Rhode Island, the sector produces a third of the state’s 11 million metric tons of carbon dioxide equivalents released annually. All Electric Systems And Heat Pumps Although biodiesel can help to meet carbon reduction goals, there is also a push for more expensive “all electric” systems (i.e., heat pumps) in cities throughout the Northeast. Pricing of heating oil blended with biodiesel is comparable with that of pure heating oil but may be somewhat higher. A blended fuel also burns cleaner and more efficiently, which reduces heating system maintenance and improves energy efficiency. Bioheat fuels can be used in the same tank and furnace system as standard petroleum heating oil without modification. Concerns Surrounding Biofuels The U.S. Environmental Protection Agency says biodiesel reduces greenhouse gas emissions, including nitrogen oxide There is some concern that producing biofuel stock could strain the food supply by displacing food crops in order to produce plant-based fuels on a large scale. Currently biodiesel is limited by the volume of available feedstock needed to achieve scale. Also, the lifecycle of producing renewable fuels may emit greenhouse gases. American GreenFuels, New Haven, Conn., has announced its biodiesel product has achieved environmental claim validations from Underwriters Laboratories. UL has confirmed that biodiesel produced by American GreenFuels contains an average of 42 percent post-consumer recycled content and 46 percent byproduct synergy feedstock content. As the largest biodiesel producer in the Northeast United States, American GreenFuels produces biodiesel from plant oils and recycled waste materials.
Machine learning provides a tool to lower energy costs in a building, and Honeywell has launched a platform that incorporates the newer technology. Combining self-learning algorithms with building automation, Honeywell Forge Energy Optimization is a cloud-based system that analyzes a building’s energy consumption pattern and adjusts its settings. “We can help building portfolio owners fine-tune their energy expenditures to drive efficiencies and create more sustainable practices,” says David Trice, Vice President and General Manager, Honeywell Connected Buildings. Autonomous building solutions Honeywell says the autonomous, closed-loop building solution may deliver double-digit energy savings while decreasing a building’s carbon footprint. It can be implemented without significant capital expense or changes to a building’s current operational processes. The system autonomously and continually optimizes a building’s internal set points across hundreds of assets every 15 minutes by evaluating whether the HVAC system is running at peak efficiency. When analyzing when to make an adjustment, the system considers factors such as time of day, weather, occupancy levels and other data points. The system considers factors such as time of day, weather, occupancy levels Honeywell Forge Energy Optimization calculates its decisions 96 times per 24-hour period in every building in a portfolio. Deployment is a simple plug-and-play process with no changes needed to business mechanics. Systems do not need to be rip-and-replaced. Results of the technology The technology has been demonstrated in a pilot at Hamdan Bin Mohammed Smart University in Dubai, United Arab Emirates, achieving an initial 10% energy savings. The pilot achieved the extra savings over and beyond what was achieved earlier in the highly smart, energy-efficient building with fully connected lighting, cooling, building management, power and efficiency control optimized based on real-time occupancy. The pilot also uncovered local control issues with the chiller plant and fresh air handling unit that were not adjusting to set points. “Honeywell Forge [was able] to drive further energy savings beyond our achievable optimization with the techniques we [had],” says Dr. Mansoor Al Awar, HBMSU’s Chancellor. The university is collaborating with Honeywell to support the advancement of artificial intelligence (AI) and machine learning to drive operational efficiencies. Energy consumption in commercial buildings is significant. Buildings and buildings construction combined are responsible for more than 36% of global final energy consumption and nearly 40% of total direct and indirect CO2 emissions, according to the International Energy Agency (IEA). Energy demand in these sectors continues to rise, driven by improved access to energy in developing countries, greater ownership and use of energy-consuming devices, and rapid growth in global buildings’ floor areas. Opportunities for energy saving It is a market where the potential impact of greater efficiencies is huge It is a market where the potential impact of greater efficiencies is huge. Heating, ventilation and air conditioning often presents the largest opportunity for energy savings in a commercial building. “Buildings aren’t static steel and concrete – they are dynamic ecosystems and their energy needs fluctuate based on ever-changing variables like weather and occupancy,” says Trice. “We are evolving building operations far beyond what would be possible even with a robust team of engineers and the rules they code in their building management system.”
In practice, incumbent building services can help architects and designers overcome planning and structural constraints. Building typology comes in all shapes and sizes, each with its own unique design criteria. Frequently building services, heating, ventilation and air conditioning in particular can be challenging to integrate into a building design but experience shows that this does not necessarily have to be the case. Working with underfloor air conditioning over the past 30 years,) AET Flexible Space can demonstrate that such systems have a number of benefits in design application that ultimately make it the ‘system of first choice’ when compared with alternative overhead and perimeter air conditioning systems and their practical application. ease of reconfiguration Principally there are two different types of underfloor air conditioning (UfAC) system, the first being a full underfloor solution, with zone units supplying conditioned air, and receiving spent air via the plenum beneath the raised access floor. As it effectively becomes the ventilation zone, the plenum is divided into supply and return air paths using fire-resistant, air-tight silicone cloth. As there is no need to divide the floor plenum, this option permits freedom to maximize the floor plate This first system is undoubtedly the best option if the brief is to expose ceilings and maximize headroom in refurbishments as it allows total elimination of any ceiling void. Another option is a system with a zone unit which supplies conditioned air via the floor plenum, but receives spent air at high level or via ceiling extract grilles. As there is no need to divide the floor plenum, this option permits freedom to maximize the floor plate as well as future flexibility due to the ease of reconfiguration. ceiling based air conditioning Refurbishment projects in the UK often have specific design criteria, dictated either by the client, or frequently by planning conditions. 8 Waterloo Place in the St James’ area of London is a classic example. The fabulous building constructed in the early 1900’s is Grade II listed and features ornate vaulted ceilings and decorative plasterwork cornices. Both the client and the architect specifically requested no services at high level in order to preserve and highlight these features using bi-directional up and down lighting. This immediately eliminated ceiling based air conditioning as an option. The seven story building also has differing floor to ceiling heights on each floor, proving to be an additional challenge for investor Barings, whose aim was to create the highest quality, modern office space at the prestigious Mayfair property. high profile tenancy A full underfloor air conditioning system was subsequently specified for floors 1-4 of the building, which all had an existing 300mm floor plenum. The height restriction of the dormer fifth floor only permitted a very shallow floor plenum, so a perimeter system was adopted for this space. The end result of the refurbishment was 70% occupancy in a very short period of time, the building attracting high profile tenancy and achieving high levels of rent, “a truly special building”, comments the MD at Barings Real Estate. Another key building characteristic is the small windows and low natural light levels Another refurbishment project to reference is 33 Glasshouse Street, London, prominently located on the corner with Regent Street, a fusion of three buildings and with a Grade II listed façade, varying slab heights and low floor to ceiling heights, developer Hermes set about a full “Cut and Carve” structural reconfiguration to form larger, deeper, open plan floor plates and increase the floor to ceiling height to 3.3m on floors 3-7. raised floor system Another key building characteristic is the small windows and low natural light levels. Underfloor air conditioning was specified to help maximize the floor to ceiling heights and permit the greatest level of natural light through the deep floor plates. Perimeter heating and cooling would not have been effective given the deep floor plates and ceiling based air conditioning would have required a ceiling void that would virtually cover the low level windows, severely restricting light penetration. Even with the introduction of a raised floor system and underfloor services, the down stand beams are clearly visible underneath the window line, but this only serves to highlight the unusual building characteristics in an effective way. The end result, another achievement by the project team with a successful outcome. Prime, modern office space attracting the highest caliber occupants, commanding premium rates. overhead services At Cathedral Hill in Guildford, UfAC was used to cool the atrium area where overhead services could not be used September 2018 saw the completion of the tenant fit-out on three floors of the building for one of the world’s biggest tech giants. Design freedom with underfloor air conditioning is not only apparent in refurbishment projects, over the last three decades, the company's systems have also helped new builds achieve their design objectives, whether by using a full underfloor system, or simply integrating floor recessed Fantiles with Displacement Ventilation or other HVAC systems. At Cathedral Hill in Guildford, UfAC was used to cool the atrium area where overhead services could not be used. At First Point, Gatwick, adopting UfAC saved 2m in height compared with an identical building at Heathrow with ceiling services. cellular meeting pods At the expansive Sky Central Campus, UfAC Fantiles are used to enhance the Displacement Ventilation system by boosting cooling in the cellular meeting pods, and at the award winning Here East Innovation Centre, UfAC has been innovatively integrated with overhead services offering fully flexible and functional workspace for the start-up community. The above are just a few examples of how innovative thinking and design application has encouraged the uptake of underfloor air conditioning and promoting it as a viable solution to wide ranging design challenges in new build and refurbishment projects, helping property owners and agents to differentiate their offering and create world class workspace.
AET Flexible Space recently completed the supply and commissioning of underfloor air conditioning equipment for the new ninth floor at 55 Gresham Street. Situated near the Guildhall in the heart of the City, the 84,038 sq. ft., eight story building was acquired in 2014 by Angelo Gordon and Beltane, extended and fully redeveloped to provide 11 floors of Grade-A office space over 121,569 sq. ft. underfloor air conditioning The redevelopment included the creation of a new level access corner entrance and reception at Wood Street and Gresham Street, with remodeled cores, extensions of the floorplates at ground to sixth floors and replacement seventh and new eighth and ninth floors created through the removal of the existing ninth floor plant. New services are supplied throughout and new composite stone facades to the south, west and north are well in keeping with the urban locality. The design is characterized by its imaginative use of materials and historical references The design is characterized by its imaginative use of materials and historical references. Designed by Fletcher Priest Architects, with mechanical, and other design services provided by consultant, Waterman Group, underfloor air conditioning was specified for the new ninth floor terrace in order to maintain the architectural vision. Direct Expansion coils By placing services within the floor void, the remaining available space and floor to ceiling heights were maximized by eliminating the need for ceiling based pipe and ductwork. The two zone system on the ninth floor terrace is served by two CAM-C25 downflow units with Direct Expansion coils and a total of thirty standard TU4 Fantiles with EC fans for enhanced energy performance. This considered redevelopment is a building designed with the occupier in mind and testament to this approach, the entire building was pre-let prior to practical completion to global giant, Investec Asset Management. Main contractor ISG handed over the £34 million project at the end of 2018 and has a BREEAM target of Excellent.
One Benjamin Street, situated directly opposite Farringdon Station on the corner of Turnmill Street, is a fabulous new build with mixed use accommodation comprising retail and commercial space as well as residential penthouse apartments. The prominent site, owned by The Girdler’s Company for some 400 years, formerly featured three individual buildings of different style and character, which were considered unfit for purpose and replaced by one high quality single building. Designed by world renowned architect AHMM, and inspired by the character of local Victorian warehouses, and craftsmanship at the core of The Girdler’s Company, the new build offers 1692 m2 of high quality, sustainable office space with highly flexible, column free floor plates and BCO recommended floor to ceiling height of 1.8m on the 1st to 3rd floors. air conditioning system Underfloor air conditioning was recommended by Main Contractor who had experience of floor level air conditioning The overall design brief was to provide optimum flexibility when adding or re-arranging fittings for incoming tenant requirements, and the AET Flexible Space underfloor air conditioning system specified fits this brief perfectly. Underfloor air conditioning was recommended by Main Contractor, Knight Harwood who had experience of floor level air conditioning from another London refurbishment in Soho Square. M&E Consultant, Scotch & Partners were satisfied that the system could cater to demand, whilst offering greater flexibility for future change of use than the originally proposed perimeter heating and cooling systems. The system specified is a CAM-V system with underfloor supply air and return air received back to the zone unit at high level. The CAM-V system is the best solution for future flexibility as there is no underfloor air baffle to reconfigure should a layout change be considered. supply conditioned air Each of the office floors is split into two zones, with a CAM-V33 downflow unit serving each zone. A total of 105 recessed Fantiles, which supply conditioned air into the space, are evenly distributed across the six zones. The completed new build with its reinforced concrete frame, flat slab construction and exposed concrete soffits, columns and walls offers contemporary interior styling, and the exterior detailing combining feature brickwork, exposed polished concrete medallions and signature façade cladding incorporating the client’s crest is a quality improvement to the local streetscape and a testament to the client and project team.
The task facing Donovan & Son’s, Inc., Plumbing/HVAC in Middletown, RI was to propose and install heating system boilers that allow the Preservation Society of Newport County to conserve on fuel costs, more closely match varying building heat loads, and coexist with the tremendously large water content of a gravity system. The historic mansions of Newport, RI are known for their elegance and remind its visitors of a bygone era of social and financial preeminence during the turn of the twentieth century in America. Cornelius Vanderbilt II, grandson of railroad industrialist Cornelius Vanderbilt (1794-1877) had the 70 room Italian renaissance inspired mansion built on the site of a wood-framed house which was destroyed by fire in 1892. gravity feed system The Breakers is now owned and operated by the Preservation Society of Newport County A year later, Architect Richard Morris Hunt, deployed an international team of craftsmen and artisans to create the mansion, which is considered to be the most elegant of the Newport summer cottages. The Breakers is now owned and operated by the Preservation Society of Newport County. The preservation society recently replaced an old inefficient boiler with two high efficiency model MPC9 boilers (up to 88.6% efficiency). The old boiler operated at minimal efficiency, especially during the spring and fall when the building demand only required partial load. The mansion, built during the dawn of electricity, used a gravity feed system with large 18-inch supply and return mains. This large supply and return mains divide up into a network of several smaller mains that feed scores of cast iron radiators hidden away in the walls of the structure. heat distribution system The radiation that heats The Breakers is built into the walls of the building and is for the most part out of sight. The heat distribution system consists of radiators lying horizontally in vertical structural chase ways throughout the building. Air connects upwards through these chase way-mounted radiators and is distributed into the rooms via ornately cut grilles in the marble walls allowing the system to exist without being seen. The task facing Donovan & Son’s, Inc., Plumbing/HVAC in Middletown, RI was to propose and install heating system boilers that allow the Preservation Society of Newport County to conserve on fuel costs, more closely match varying building heat loads, and coexist with the tremendously large water content of a gravity system. The boilers had to be installed as part of a century old high-mass gravity feed system. system injection piping MPC boilers have built-in return water temperature protection in the form of a return water mixing tube (RWMT) To do this, Donovan & Son’s converted the near boiler piping to a primary/secondary configuration consisting of a boiler room loop with boiler and system injection piping. The purpose of the boiler room loop was to create a buffer area where heated water from the boilers is no longer in direct contact with the cooler system return water as each boiler injects its heated water into the boiler room loop and in turn heated water from the boiler room loop is transferred into 18-inch supply and return mains, utilizing several small pumped connections. desired minimum temperature This configuration assists the flow of the gravity system to operate as it always has, by simply keeping the large system supply main hot and the boiler loop well above a desired minimum temperature. Such a large water volume in the system loop required that added consideration be given to boiler protection. MPC boilers have built-in return water temperature protection in the form of a return water mixing tube (RWMT). The RWMT protects the boiler from low return temperatures by distributing cool return water evenly throughout the length of the boiler, virtually eliminating concerns of thermal shock and providing balanced flow through each casting. Operating parameters for the MPC, with the RWMT, require a minimum 130ºF supply temperature, minimum 80ºF return temperature and a maximum of 80ºF ∆T. modulate supply water temperature Modular boiler systems provide redundancy if a mechanical device fails to operate during the winter months System operation is controlled by a Tekmar 264 boiler staging control allowing for two individual sets of high-low firing, or four stages of firing. The control also modulates supply water temperature based on outdoor air temperature fluctuations. Domestic hot water is generated using a Burnham Alliance indirect water heater which replaced a separate oil fired water heater. Staging the boilers, modulating the system set-point based on outdoor air temperature and installing the indirect water heater, all combined with the MPC’s high-efficient three-pass sectional design are key factors in reducing energy costs. A recent jobsite visit showed the outdoor temperature to be 38°F and the system water temperature at 155°F with one boiler sustaining the load on low fire. greatly reduced fuel costs The ultimate benefits of The Breakers’ new boiler system will be greatly reduced fuel costs and greater building comfort, by more closely matching the building heat load. Additionally, modular boiler systems provide redundancy if a mechanical device fails to operate during the winter months. The building can now be heated with as low as 25% of the total boiler capacity on the plentiful amount of moderate days that we encounter during the heating season. This will be a boiler system that will offer considerable payback for many years to come. To find out more about the Burnham Commercial MPC boiler and how the user can put the MPC to work for them, visit Burnham Commercial’s all new website.
The new Adidas LDN flagship outlet in London, which opened late October 2019, has been specifically designed to enhance the retail experience. As the brand’s most technologically-advanced store worldwide, it required a ventilation system that would effectively deliver a fresh air supply across the four-storey, 27,000 sq. ft, site, in the most energy efficient way possible. Adidas is one of the most well-known sports brands in the world, and so it’s to be expected that when it launched its new store on Oxford Street, London, it would be no ordinary shopping experience. Digitally-Savvy innovations The store features over 100 digital touch points that are all powered by green energy The store features some of the most digitally-savvy innovations in retail, such as interactive mirrors in changing rooms that allow shoppers to order different sizes direct from the stockroom, a ‘Bring It To Me’ feature using in-store geolocation tracking to allow customers to shop without queueing, and a MakerLab where clothes can be customized with personalized designs. However, with additional energy usage comes additional heat sources, and therefore the size and volume of air required to keep the building and shoppers cool needed to be carefully calculated. The store features over 100 digital touch points that are all powered by green energy. While incorporating these interactive elements into the design of the store would, undoubtably, help to revolutionize the high street, subcontractor, PCB Technical Services, also recognized that they would increase energy usage and would therefore result in additional heat loads. Enhanced technical support With this in mind, a ventilation system that would be able to meet a consistently high demand at all times was required. What’s more, a quick turnaround was essential to ensure the unit would be installed and delivered within time and budget. After an initial supplier interview and factory review, Ricardo Hudson, Senior Technical Project Manager at PCB Technical Services, was given the confidence to opt for a bespoke Air Design unit from Elta Fans. This was thanks to the company’s enhanced technical support and understanding of the project, as well as its ability to meet the tight delivery date. Elta Fans uses in-house Air Design technical engineers who utilize specialist software to tailor the unit especially for the customer’s exact needs; considering performance, efficiency, noise, and, most importantly, the latest regulations and any site restrictions. Air Design ventilation unit The Air Design ventilation unit supplied by Elta Fans was custom-made, ensuring it was able to effectively ventilate Providing fresh air to a store as big as this one is essential if customers are to feel comfortable while browsing, but it is also crucial that adidas adheres to the most up-to-date energy standards and legislation. The Air Design ventilation unit supplied by Elta Fans was custom-made, ensuring it was able to effectively ventilate according to the unique size and layout (across four floors) of the store. The specialized solution chosen, the fully-configured PURA+ Air Handling Unit (AHU), would be mounted on the roof to maximize space on site. The challenge of transporting the AHU into position was exacerbated by the high-profile nature of the location. PCB Technical Services was reluctant to disturb the busy street, particularly given the strict local regulations that had to be upheld. Improved ease of installation A great deal of planning was required to fit the unit as PCB had to work within a limited timeframe, gain the relevant planning permission, and eliminate as many risks as possible to nearby occupants and shoppers. As a result, the team was required to arrange a specific timeslot for delivery to site. As the Air Design unit was manufactured offsite, it was able to be lifted into place by crane, minimizing road closure time, and ultimately disruption. This also improved ease of installation as it was delivered in two parts and could be easily bolted together once in place. Now installed and operational, the AHU delivers a consistent fresh air supply into the building by removing polluted air and replacing it with clean air, at the most efficient temperature. Balancing indoor air quality This allows the store manager to balance indoor air quality (IAQ) and energy efficiency Building Management System (BMS) controls enable the store manager to ensure the ventilation system is working as it should in tandem with other products. This is essential as it is not just the store itself that needs to be kept cool, but also the data center, which generates a significant amount of heat from the servers. Controls will essentially determine how a ventilation unit runs, whether that’s scheduling airflow, linking to a BMS, permitting fault signals and alarms, or communicating that filters need changing. Ultimately, this allows the store manager to balance indoor air quality (IAQ) and energy efficiency, and also effectively manage operating costs. Evolving ventilation demand Ricardo said: “The unique challenges of the project were amplified with the introduction of a series of in-store digital screens. This meant that more heat was being generated within the structure, thus increasing the levels of ventilation required.” “It also necessitated wholesale changes to the ductwork system, in order to increase the velocity and retain ambient temperatures. Owing to its reputation in the industry and having already completed several successful projects together, Elta Fans was the standout choice to provide us with an AHU capable of meeting this evolving ventilation demand.” The bespoke PURA+ that we ultimately installed was ideal for meeting the velocity" “The bespoke PURA+ that we ultimately installed was ideal for meeting the velocity and air volume required for the store’s footprint. Plus, it was able to integrate with the BMS, enabling us to manage the significant amount of power throughout the building.” Quickly identify ventilation requirements Melissa Goodman, Technical Sales Manager at Elta Fans, said: “The challenge of providing consistent air flow across the site’s four floors was underpinned by the tight time constraints. It presented the Air Design engineers with an exciting opportunity to produce a bespoke PURA+ that was both straightforward to install, but also robust and powerful enough to perform as required.” Ricardo concluded: “Finding a bespoke solution in a short amount of time is difficult, and this project highlights the importance of choosing a brand that offers consistency, even in its customized products. The adidas project was a perfect example of Elta Fans’ ability to quickly identify ventilation requirements, and the PURA+ unit provided by Air Design highlights its precise approach to tackling air movement problems.”
Two new Burnham model MPC™ high efficiency commercial boilers were recently installed by The Witmer Company of New Holland, PA in the historic ‘High Point’ Mansion located in Hershey, PA. The Model MPC boilers will provide space heating for the 22-room Mansion which was built in 1908 as the home of Milton and Catherine Hershey. Mr. Hershey was the founder of the Hershey Chocolate Company, now known as The Hershey Company. Today, ‘High Point’ Mansion serves as the headquarters location for the Hershey Trust Company which, among other things, oversees the continued philanthropic efforts that were founded by Milton Hershey. Exceptional heat transfer Two, five-section model MPC boilers were selected to provide heat for the building through a combination of 5 air handlers, 52 fan coils and commercial finned tube radiation. The MPC’s are well suited for the job with their unique 3-pass flue design and Return Water Mixing Tube, which translates into exceptional heat transfer as well as the ability to accept return water temperatures as low as 80°F. The MPC’s 4-inch insulation blanket insulates the boilers so well that the jackets stay cool to the touch The MPC’s are manufactured in nearby Lancaster, PA using BC25-HSi cast iron sections, which contain high levels of silicon for exceptional flexibility and heat transfer capabilities. Even at start-up a big difference could be noticed – the boiler room temperature had dropped 30-degrees from the previous boilers. The MPC’s 4-inch insulation blanket insulates the boilers so well that the jackets stay cool to the touch, and the boiler room at the Hershey Mansion is now a much more comfortable place to work. Heat distribution systems Heat transfer and high efficiency is only part of the equation in this new installation, with a variety of heat distribution systems and controls the MPC’s needed to integrate with an advanced control system. The power burners were ordered with the powerful new Burnham SBC™ – or Sage Boiler Control, which made the control portion of this job simple for the Witmer crew. The SBC’s control many of the boiler room functions such as outdoor reset, multiple boiler modulation, lead-lag boiler rotation, combustion air louvers, and pump controls, all without the need for additional control systems. And the SBC’s tie right into the existing building management system so the whole system works together to deliver comfortable, efficient heat throughout the beautiful historic Hershey Mansion.
Residential HVAC: Manufacturers & Suppliers
- American Standard Residential HVAC
- Daikin Residential HVAC
- Goodman Residential HVAC
- Lennox Residential HVAC
- Nortek Residential HVAC
- Marley Engineered Products Residential HVAC
- Frigidaire Residential HVAC
- Bryant Residential HVAC
- Trane Residential HVAC
- YORK Residential HVAC
- Revolv® Residential HVAC
- Carrier Residential HVAC
- Honeywell Home Residential HVAC