NSK customers around the world, including those in Europe, are set to benefit from the construction of a new heat treatment facility at the organization’s NSK Toyama plant, in Japan. The move comes as part of a continuous effort to strengthen the structural resilience of the NSK Group, while simultaneously providing a productivity and efficiency boost. NSK Toyama heat treatment facility Following the completion of the ¥3 billion (approximately 23.78 million euros) heat treatment plan...
Closed and cramped environments are especially problematic to the spread of the novel coronavirus that causes COVID-19. A ‘smart’ glass-paneled bus stop shelter, developed in Korea, embodies new approaches to making such spaces safe, including elements of HVAC. Smart shelters The smart shelters are closed-in glass cubes that serve as bus stops in the Seongdong district in northeastern Seoul, South Korea. The local district office collaborated with LG Electronics to develop the futu...
Ruskin® announces air control dampers for data centers designed to maintain proper environmental conditions and ensure optimal performance of information and technology equipment. The CD50DC, CD60DC and TED50DC dampers also offer a new coupler option that joins two damper sections without a jackshaft. This allows an actuator to be mounted on the side of the frame and deliver a narrow profile when space is limited. In addition, the DC models have enhanced operational performance with less mo...
Having spent the last few months working from our sofas, dining tables and ironing boards, many of us have become accustomed to the world of remote working. But we’ve now arrived at a point where many businesses are starting to reopen their doors or have plans to do so in the near-future. Employers will be hoping that a return to work will prove productive, reinvigorating the workforce and driving growth. To this end, however, they will need to instill confidence by demonstrating how they...
The modern technological world is filled with ‘extrusions’. They are all around us, in the form of small and not-so-small cross sections. The function of an extrusion is to form seals between components of complex machinery and keep them functional. And, depending on the ‘type’ used, they can make a big difference to how a machine operates. Some of the most desirable types of extrusion — and especially for use in HVAC systems — are those made from silicone. S...
Johnson Controls, the provider of smart and sustainable buildings, announces the KOCH™ DuraMAX line of air filters. With a range of efficiency ratings from MERV 11 to MERV 16, DuraMAX filters are a smart and safe upgrade from bag filters and other box-style rigid filters and effectively help lower the spread of COVID-19 indoors. The DuraMAX line of filters works alongside other Johnson Controls HVAC products and solutions to help make buildings more safe, secure and sustainable. Indoor a...
Carrier AquaSnap scroll chiller range is now available with R-32 refrigerant, which improves performance and reduces direct greenhouse gas emissions by up to 80%, compared to the previous range using R-410A refrigerant. The innovative air-cooled range meets requirements for the European F-Gas phase-down of HFC refrigerants and Ecodesign requirements for 2021. Carrier, a globally renowned provider of high-technology heating, air conditioning and refrigeration solutions, is a part of Carrier Global Corporation, an international organization in the field of innovative heating, ventilating and air-conditioning (HVAC), refrigeration, fire, security and building automation technologies. AquaSnap scroll chiller range Carrier selected R-32 refrigerant, which has a low global warming potential (GWP) of 675 Carrier selected R-32 refrigerant, which has a low global warming potential (GWP) of 675, for use in commercial scroll chiller ranges. R-32 has a GWP that is two thirds less than the GWP of the current R-410A version and this change, combined with a significant system refrigerant charge reduction – up to 30% – allows for an exceptional 80% reduction in direct greenhouse gas emissions. The AquaSnap range reaches an outstanding Seasonal Energy Efficiency Ratio (SEER12/7) of up to 5.33 and a Seasonal Coefficient of Performance (SCOP) of up to 3.77. The range covers capacities from 40 kW to 940 kW. Equipped with R-32 refrigerant “Carrier’s AquaSnap range with R-32 refrigerant allows our customers to anticipate compliance to Ecodesign 2021 requirements while supporting the next phase down steps of the European F-Gas regulation for HFC,” said Didier Genois, Vice President, Carrier HVAC-Commercial (Europe), adding “The range also provides customers with best-in-class performance in heating and cooling conditions.” The AquaSnap with R-32 refrigerant can meet the needs of a wide scope of applications. The range ½ covers an extended operating map, up to 48 degrees Celsius outdoor air temperature, and features Carrier’s best-in class technologies for maximum efficiency in all conditions, including: - Multiple scroll compressors able to match load requirements. - Brazed asymmetric plate heat exchangers with true dual-circuit design for high performance in both full and partial-load conditions. - Smart energy monitoring function providing real time capacity provided and energy consumption measurement. - Greenspeed intelligence on premium versions: variable-speed fans and variable-speed pumps.
Panasonic UK has announced today an end to its distributor agreement with TF Solutions. Alfredos Armaos, UK Country Manager for Panasonic UK commented “We would like to thank TF Solutions for their support and efforts over the last few years and wish them all the best in the future. Customers can rest assured that Panasonic will honor any ongoing agreements and warranties regarding Panasonic products which will be dealt with in the usual way.” Panasonic has a strong distribution network across the UK for its heating and cooling solutions and will continue with these relationships with AMP, DYSK, EasyAir, ESS, Heronhill, ICG, Logicool, Oceanair and Secon Solar.
As the school year progresses in various formats, Trane® – by Trane Technologies, a global climate innovator – introduces expanded services to help schools evaluate, implement and fund indoor air quality improvements in their buildings. Heating, ventilation and air conditioning systems (HVAC) play a critical role in creating proper indoor air quality. ASHRAE® guidelines to address COVID-19 in the reopening of schools indicate that making changes to the operation of HVAC systems can mitigate exposure to airborne contaminants. Healthy indoor air quality “As schools bring back students for part-time or full-time in-person learning, healthy indoor air quality is a chief concern alongside other safety practices including wearing masks and social distancing,” said Donny Simmons, president, Commercial HVAC Americas at Trane Technologies. “HVAC systems, properly applied, are an important aspect of addressing environmental concerns within a school.” A thorough assessment is a helpful starting point for schools to understand their indoor air quality needs A thorough assessment is a helpful starting point for schools to understand their indoor air quality needs. The Trane® Indoor Air Quality (IAQ) assessment focuses on four critical pillars of indoor air quality – dilute, exhaust, contain and clean. The fact-based assessment equips school building managers with a clear and cost-effective roadmap for improvements that will bring facilities into alignment with CDC and industry recommendations. Isolation space evaluation The Trane IAQ Assessment now includes a supplemental isolation space evaluation to help schools better prepare for scenarios where students or staff experience symptoms while on campus. The evaluation can help schools create an isolation space in line with industry recommendations, including stringent guidelines for air exchanges, negative pressurization and other criteria. Trane’s comprehensive suite of solutions address conditions and recommendations across all four critical pillars of indoor air quality, including cleaning the environment to actively reduce the number of microbiologicals that may be in the air or on surfaces. Air cleaning technologies range from high-rated MERV or HEPA filters, to Ultraviolet Germicidal Irradiation (UVGI) and photocatalytic oxidation. Air cleaning solutions Trane now offers Synexis®-made Dry Hydrogen Peroxide (DHPTM) solutions to K-12 schools in the U.S To meet the evolving needs of schools and increased demand for air cleaning solutions, Trane now offers Synexis®-made Dry Hydrogen Peroxide (DHPTM) solutions to K-12 schools in the U.S. to help reduce the presence of viruses, bacteria, and mold in the air and on surfaces. Synexis® is the sole developer of the process by which naturally occurring humidity and oxygen are taken from the air to create DHPTM, which reduces the presence of unwanted microbes that may be present in the air and on surfaces, continuously improving indoor air quality and surface cleanliness. Synexis® solutions can be integrated into a school’s existing HVAC system or used as a portable, standalone unit in any room to treat the air and any surface the air touches, making it an ideal application for school isolation spaces, classrooms and high traffic areas like cafeterias and hallways. Best air quality solutions “Our customers count on Trane to bring them the best air quality solutions and strategies available, and we’re pleased to expand our portfolio with Synexis® solutions for schools,” said Simmons. “Implementing HVAC best practices and innovative air cleaning technologies, such as Synexis®, are ways schools can go on the offensive to help improve indoor air quality and create more peace of mind for students, faculty, administrators and parents.” “For many schools, the central issue is not whether they need indoor air quality improvements, but how they will they fund them – especially in a year marked by many other unplanned expenses,” said Simmons. “Trane’s expanded and flexible financing options help school districts move forward with the indoor air quality improvements they need now.” Delivering fast implementation Trane K-12 experts help schools evaluate the most affordable ways to pay for IAQ upgrades Trane Integrated Funding Solutions (IFS) includes Leasing and Managed Services Agreement options with deferred payment plans and extended terms for qualifying school districts. Additionally, Trane K-12 experts help schools evaluate the most affordable ways to pay for IAQ upgrades, including leveraging CARES Act funding, grants, utility rebates, and other available resources. The program is designed to help address schools’ financial constraints by eliminating immediate out-of-pocket expenses, preserving working capital and other forms of credit and delivering fast implementation of needed improvements. With flexible funding support, school districts can make needed upgrades to maintain proper indoor air quality now and help minimize impacts on operating budgets. “It’s a complex time for schools, and there is no single solution for all environments,” said Simmons. “Every school may have different needs – and variables – when it comes to indoor air quality. The bottom line is schools should work with a trusted partner and take a strategic, fact-based approach to make the best use of their budget and investments.”
Danfoss has announced updating and enhancing its service offering to create a more sustainable, scalable and secure cloud-based portal for managing food retail operations. Alsense IoT Food Retail Services Previously known as Danfoss Enterprise Services (DES), Alsense is optimized to provide new levels of efficiency. Supermarkets and food retail stores can reduce their net energy consumption by up to 30% with Alsense, saving money and reducing food waste. ”We’re excited to introduce this fully connected service platform featuring a modern interface and powerful capabilities,” says Peter Dee, Sales Director Food Retail, North America for Danfoss. Peter adds, “By providing insights and recommendations backed by real-time data, food retail customers can manage their refrigeration, HVAC and other IoT assets more efficiently and reduce expenses related to energy costs and food waste.” Increased efficiency and streamlined performance All services are integrated into one hub, offering a seamless user experience and added functionalities. Some of these functionalities include: Actionable insights — Alsense delivers relevant, easy-to-digest insights. This allows customers to take corrective actions faster, significantly reducing food and energy waste. Increased security and availability — Alsense allows for easy expansion to different regions, with higher serviceability and a new VPN structure for added security. Improved performance and stability — The new service platform on Microsoft Azure provides smoother service operation, faster reaction to alarms, reduced nuisance alarms and higher asset uptime. Dynamic feature roadmap — The feature provides customers with continued enhancements based on real-time feedback. Responsive portal — Whether on a mobile device, tablet or desktop, users will experience a seamless, responsive portal. This increases ease of use and accessibility to necessary information at a desk or on the go. Danfoss – Microsoft trusted partnership With the updated Alsense platform, customers can depend on the combined expertise of two notable enterprises With the updated Alsense platform, customers can depend on the combined expertise of two notable enterprises. Danfoss brings more than 80 years of engineering and mechanical experience to its cloud-based services enabled by the new platform powered by Microsoft Azure. Microsoft has the trusted security, scalability and sustainability that customers have come to expect in their digital tools. Danfoss and Microsoft announced the partnership in October 2019. The new Alsense platform is the first of many solutions to come from this IoT collaboration. Tangible benefits with an IoT platform “With Alsense Danfoss have proven the ability to understand and tackle device diversity and connectivity challenges of the food retail industry and deliver tangible benefits with an IoT platform that reduces operational costs and energy savings. This is how we empower enterprises to deliver sustainability through the smart use of technology,” said Nina Lund, EMEA Retail & Consumer Goods Lead at Microsoft. Existing DES customers will experience the added value of Alsense via an automatic update on the current platform. New customers can explore the solutions that best fit their needs by contacting a sales representative.
During its meeting on 29 September 2020, the Eurovent Product Group ‘Air Filters’ (PG-FIL) elected Dr. Marc Schmidt (Vice President Technologies Europe, AAF International) as its new Chairman. He is joined by Dr. Thomas Caesar, who was re-elected for his second term as PG-FIL Vice-Chairman. Eurovent Product Group ‘Air Filters' The Eurovent Product Group ‘Air Filters’ (PG-FIL) met in a full-day online session on Tuesday, 29 September 2020, with a focus on regulatory updates under Ecodesign and REACH and the revision of several Eurovent Air Filter Recommendations. The group elected Dr. Marc Schmidt as its new Chairman for the next two-year term The group elected Dr. Marc Schmidt as its new Chairman for the next two-year term. He will succeed Mr. Jan Andersson of Camfil, who served as PG-FIL Chairman for many years. Dr. Thomas Caesar was unanimously re-elected as the group’s Vice-Chairman, continuing his role for the next two years. Importance of clean and healthy indoor air Dr. Marc Schmidt, new Chairman of Eurovent Product Group ‘Air Filters’ (PG-FIL), said “Correct air filtration is more crucial than ever for the health and well-being of building occupants. Under the banner of Eurovent, it is our duty to convey this message to the market, to the policymakers, and to the public, and to raise awareness of the importance of clean and healthy indoor air.” Marc adds, “I am humbled that the Product Group ‘Air Filters’, which represents manufacturers from all over Europe, has vested its trust in me to lead the charge on this.” The next meeting of PG-FIL is scheduled for March 2021. Given the continued uncertainty around the public health situation, the exact date and location of the meeting will be determined at a later stage. All updates will be timely published on the Eurovent website.
Specifiers can now have the latest technical data, installation and compliance advice at their fingertips thanks to a new HVAC Systems Guide from ROCKWOOL. As part of the stone wool insulation manufacturer’s ongoing investment in time-saving technical tools, the new guide gives a quick and easy reference point for the use of its HVAC products in thermal, fire-resistant and acoustic applications. The latest ROCKWOOL guide helps users design, select and install with confidence. Within the handbook, designers will find detailed specification clauses in line with current industry standards, alongside devolved Building Regulations for England & Wales, Scotland, Northern Ireland and the Republic of Ireland. Providing thermal comfort This makes it easier for specifiers to navigate the best route to compliance for their HVAC project. The ROCKWOOL HVAC Systems Guide also details further technical tools and resources available, including a calculator for specifying insulation within HVAC systems and the FIREPRO® Solution Finder for appropriate firestopping solutions. “HVAC services are an essential part of modern, large scale buildings providing thermal comfort and better air quality. But when specified with only thermal performance in mind, fire protection and acoustic qualities can be overlooked,” said Paul Barrett, Head of Product Management, ROCKWOOL. “This new handbook puts all of our HVAC information in one place, making it easier to choose solutions that deliver on heat loss, as well as the comfort and safety of building users.” Pipe penetration seals ROCKWOOL solutions deliver flexibility to specify systems from a single manufacturer source “Alongside up-to-date product information and regulations, you can quickly see extra products needed to complete a full system installation effectively.” To support specifiers further, ROCKWOOL has created two CPD programs: ‘A Guide to HVAC Standards & Applications’; and ‘EN Tested Fire Duct Systems’. Further detail on these specialist sessions can be found within the new guide. ROCKWOOL HVAC stone wool products provide excellent performance in controlling heat gain, minimizing heat loss, reducing noise and delivering excellent fire resistance into, and out of the HVAC system. Offering insulation for every HVAC application ranging from rectangular, acoustic and external ductwork, to pipe penetration seals, ROCKWOOL solutions deliver flexibility to specify systems from a single manufacturer source. The latest HVAC Systems Guide is part of a wider suite of technical support tools, including the ROCKWOOL Red Book and FIREPRO Book, creating a library of resources that make it quicker and easier to specify ROCKWOOL for any application.
Building owners and specifiers can experience design flexibility, reduced operational costs and reliable, energy-efficient comfort year-round with Variable Refrigerant Flow (VRF) systems, even in extreme cold climates. Modern VRF systems like those from Mitsubishi Electric Trane HVAC US far exceed the capabilities of conventional heat pumps at low outdoor ambient temperatures and are in a great position to replace fossil fuel burning equipment in almost any climate. The Fundamentals of VRF Systems VRF technology consolidates heating and cooling into one VRF technology consolidates heating and cooling into one, all-electric system. Improving on the direct-expansion (DX) principle, a VRF system uses linear expansion valves (LEV) and an INVERTER-driven compressor to cycle refrigerant and transfer heat between its outdoor unit and the indoor unit(s) in each zone. Continuous communication between the system’s outdoor units, indoor units, sensors and controls allow VRF systems to modulate capacity based on loads and occupancy. With precise management of capacity, VRF systems reliably maintain each zone’s set point without the noisy and energy-intensive start/stop cycles of conventional systems. Design Considerations for Low-Ambient Heating The reliable performance and energy efficiency of modern VRF systems aren’t solely the product of superior product engineering. Accurate load calculations, proper installation, diligent commissioning, and regular maintenance, are essential for success. Let’s discuss six options HVAC contractors and engineers can use to solve derating challenges, even in climate zones 5 and 6. HVAC contractors can solve challenges, even in extreme climate zones Options for Solving Derating Challenges With VRF flash-injection technology, as long as an air-source heat pump can make its refrigerant cooler than the outdoor air, thermal energy can be extracted and delivered to interior zones as heat. In extreme cold, the compressor needs to operate at speeds much higher than usual to drive the refrigerant temperature and pressure in the condenser coil sufficiently low to capture ambient heat. With flash-injection technology, a VRF system injects a small amount of mixed-phase refrigerant to cool the compressor, allowing it to perform at higher speeds without failing due to friction and heat build-up. This method enables VRF systems to deliver significant heat at low temperatures. For example, CITY MULTI® VRF systems with Hyper-Heating INVERTER® (H2i®) technology can provide up to 100 percent of heating capacity down to -4° F, up to 70 percent of heating capacity down to -22° F and continuous heating at temperatures as low as -31° F. Flash-injection technology creates the opportunity to size units based upon heating loads and use the VRF system as a sole source for heating. In most regions, changeover to auxiliary heating sources is rarely needed, but can be easily accomplished with built in controls if an existing heating system is already in place. Auxiliary or backup heat can be provided by a system that generates heat using a method such as electric resistance, baseboard hydronic wall-fin radiant heat or duct coils mounted downstream of an air handler. Auxilliary or back-up heat may be installed with the VRF system while others might be an older existing system, such as a gas-fired hydronic boiler a facility repurposes after a retrofit. Due to greater efficiency, the VRF system typically provides the first stage of heat. Sole-source sizing based on heating is an alternative to using a flash-injection product, employing the option to oversize standard VRF systems for heating capacity. Specifiers must be mindful of heating derates as found in the VRF manufacturer’s selection software or engineering manuals when using this method. Designers will likely need to oversize the indoor units as well as the outdoor unit. Otherwise, the indoor units will be unable to use the extra capacity. Oversizing VRF systems to meet heating capacity should be limited to 25 percent or less so that the system doesn’t end up being excessively oversized for the commensurate cooling load. Oversize DOAS heat. VRF systems are often used in conjunction with complementary systems for ventilation. A dedicated outdoor air system (DOAS) is typically designed to supply room-neutral air (between 70° F and 75° F) in the heating mode but could be upsized to provide additional heat. With the use of a recirculation air damper and an upsized heat source (gas, hot water or electric), the oversized DOAS could be used for emergency heat or morning warmup during winter. Install outdoor units inside the building to limit derating and weather impacts in severe cold regions. In this scenario, air-source condensers are installed in a mechanical room that serves as a recirculation air plenum or a pass-through air plenum, depending on the outdoor temperature. When the auxiliary heat runs, the VRF system’s efficiency approaches the efficiency of the backup system. If the unit heater is 80% efficient, the overall system efficiency will drop so the backup unit heaters that heat the mechanical room should only run at colder temperatures. While this approach can be expensive due to the number of dampers and louvers required, the design allows a facility to locate auxiliary heat in a central location, the mechanical room. Water-source VRF systems are available as heat pumps or with heat recovery. With water-source VRF systems, all of the equipment is designed to be installed indoors. They deliver greater efficiency and have less derating versus air-source VRF systems. Less energy is needed to extract heat or reject heat into or out of water, as compared to air due to the density of each of these mediums. Also, a water loop offers a more defined and controlled temperature range, generally between 60° F and 90° F. The capacity of a water-source system is based on entering water temperature. VRF Systems Provide Comfort in Any Climate When applied according to best practices and with consideration for winter weather, modern VRF systems can serve as the primary heating and cooling system even in the coldest climates. With flash-injection compressor technology and water-source options, VRF systems offer cold-climate capabilities far beyond those of conventional heat pump systems, even without auxiliary heat.
While lockdown restrictions are being eased, it is likely that COVID-19 will leave a lasting legacy on our attitudes to ventilation, building management, and safety. As schools readjust to operating within the new norm, one thing is for certain: there is always room for vigilance when it comes to school processes and safety. Whether to reduce costs, maximize efficiencies, or achieve optimal well-being of school-going children, smart technologies are here to stay for their extensive benefits. Schools of the future will be smarter COVID-19 has underscored the importance of automated processes, which are adaptable to different building occupancies and shifting challenges. As schools around the world take the first steps towards digital transformation, the simplicity and ease of integration of some smart technologies are showing marked cost savings; streamlined safety, maintenance and operational efficiencies; and enhanced green potential. Real-time reporting from sensors and technologies are mobilizing schools to adopt a data-driven approach to take their schools into the future. COVID-19 considerations Real-time reporting from sensors and technologies are mobilizing schools to adopt a data-driven approach Since withdrawn, the government’s guidelines on schools’ management during COVID-19 provided food for thought for governing bodies and facilities managers in the school setting, driving the adoption of data-based smart solutions to counteract operational challenges and reduce costs. The guidelines dealt with partially closed facilities - and guidelines for full opening have since been issued. Within the school context, the categories outlined in the original guidelines are perennially important and, with a bearing on safety, the more precise, the better. Coronavirus and temperature checking Across different facilities, temperature screening has become a naturalised daily occurrence, with elevated temperatures a good indicator of underlying illness. In the school setting, crowd screening technology has the potential to give live temperature readings, alerts, and access control functionality. It can also be used as a contact traceability tool when high temperatures are detected. Using infrared sensors, this technology provides medically accurate readings in real time with minimal disruptions or student backlogs. Hot and cold water systems It is likely that COVID-19 will leave a lasting legacy on our attitudes to ventilation, building management, and safety The dormancy of school buildings has created a secondary worry around Legionella - and the latest guidance from The Department of Education encourages the usual pre-term building checks are conducted. This bacteria causes Legionnaires’ Disease, which is preventable yet potentially fatal. Mitigating the risk of Legionella spread is an ongoing responsibility; one which is traditionally labour-intensive, involving hot and cold water temperature testing and flushing. Automated Legionella testing removes the need for human effort, cost, potential exposure, and manual record-keeping. It also provides alerts of undesirable temperature readings and expedited response times (which, in buildings of extensive pipework, can avoid hefty maintenance bills). This smart approach to Legionella maintenance is a simple compliance tool, which will help to ensure statutory obligations and prevent sometimes punitive penalties. A Smarter Outlook On Energy And Green Transformation Without question, saving energy is smart - and smart technologies are leading the charge in helping schools to reduce consumption and achieve green goals. This is being achieved in a range of ways - from constant monitoring of HVAC usage, heating systems, and lighting to the development of data-driven maintenance schedules to keep equipment performing efficiently. Smart sensors can deliver real-time insights on usage and occupancy, reducing waste to a minimum. Ventilation Air quality is a fundamental component of a healthy indoor environment, with compromised air quality linked to disease and allergies. Research has also shown a correlation between indoor air quality, student performance, and teacher retention. Proper ventilation is one of the best ways to work towards good air quality. Smart technologies assist in myriad ways. One example is by providing real-time alerts on changes or undesirable metrics around pollutants, noxious gases, atmospheric conditions and humidity (with mold and damp in mind). In trying to achieve a balance of mechanical and natural ventilation, one is able to monitor and remotely control HVAC usage, as well as monitor and record the frequency of opened and closed windows in selected areas, to evidence effort in this regard. There’s Smart and There’s Smarter Proper ventilation is one of the best ways to work towards good air quality Iot (Internet of Things) solutions providers, like us, have developed a suite of smart solutions which cater to the schools of the future. Wireless, long-lasting and cost-effective solutions combine a system of tags, sensors, and pressure pads, which transmit data over a secure and private network. These powerful tools send data to a remote dashboard in real time, with alerts for undesirable readings, breaches, and metrics - tailored to facilities owners’ buildings, assets, and needs. With a user-friendly interface, these systems also collect data for thorough record-keeping and meaningful data insights, which have the potential to inspire informed decision-making and strategic development as schools continue to respond to the ongoing COVID-19 crisis.
Inverter driven air conditioning is more energy efficient, cheaper to operate and more profitable to install than its non-inverter driven equivalent. Here Neil Ballinger, head of EMEA at automation parts supplier EU Automation, explains how HVAC engineers can maintain the inverters in their customer’s aircon units. Do you remember cross country at school? It was exhausting; miles of seemingly pointless jogging and sprinting and, if the teacher was not looking, walking. If you were unlucky enough to be born before modern safeguarding measures were introduced, it probably also meant getting lost in the nearest woods.Why isn’t every installation an inverter driven unit, instead of the traditional single stage or dual stage models? My PE teacher, who seemed particularly vicious at the time, but in retrospect just knew about sports science than most, used to make us do something called fartlek as well. This meant long distance runs, incorporating elements of speed training by mixing up sprints with jogs and walks. The worst bit was starting to run again after a walk. That is exactly how the motor in your customer’s air conditioner feel if the units you fit are not inverter controlled. The motor has to act just like a runner doing fartlek — it sprints continuously, operating at full speed until the thermostat tells it the room is cool, then it stops. When the room gets warm, it starts again, powers immediately up to full speed and repeats the process indefinitely. Just like a teenage cross-country runner, it is the starting and stopping that is the tough bit. Furthermore, the unit probably doesn’t have to run at full speed to keep the room at the correct temperature, if the motor were inverter controlled it would speed up and slow down as the temperature fluctuates. Why isn’t all aircon inverter driven? We all know that inverter driven aircon is better than its non-inverter driven cousins. It can provide heating as well as cooling and the lifetime cost of use is less for the customer — because their energy bills stay low. The cost of installation is also higher because it is a more complex job, so it works out better for the contractor. It’s a win-win. The research firm Technavio even lists it as one of the key technologies driving growth in the HVAC market in its annual reports every year. So, the only question is, why isn’t every installation an inverter driven unit, instead of the traditional single stage or dual stage models?When contractors contact EU Automation to buy automation parts, for the units they maintain, they have given us another reason: maintenance Cost is a factor, but when contractors contact EU Automation to buy replacement motors and inverters, and other automation parts, for the units they maintain, they have given us another reason: maintenance. As HVAC engineers, we are not necessarily specialists in power electronics, and this makes inverter maintenance daunting. Microcontrollers and IGBTs (Insulated Gate Bipolar Transistors) are not beyond us by any means, but they can be intimidating. Personally, I would back an electrical or heating engineer over an electronics specialist in a problem-solving contest all day long; but that doesn’t solve the problem at hand. Furthermore, while we are experts in air conditioning brands, and know our Daikins and Grees from our Mitsubishis and Fujitsus, we don’t necessarily have contacts at the inverter manufacturers. Amtech, Danfoss, Vacon and Yaskawa are all names we know, but the local dealer for any of them is probably not in your phone book. This is especially true if the unit you need is from a first-generation inverter driven aircon unit and well over a decade old. While we are experts in air conditioning brands, and know our Daikins and Grees from our Mitsubishis and Fujitsus, we don’t necessarily have contacts at the inverter manufacturers Maintenance techniques While inverter maintenance can be daunting, it isn’t difficult. The tools you will need most often are nothing more than a rag and a spanner, while the more esoteric kit is stuff you probably carry anyway, a laptop, vacuum and a Fluke meter. Before you start, remember that while we tend to refer to an inverter as an inverter, the manufacturers themselves, and many of the sources of information online, often refer to them as VSDs (Variable Speed Drives), VFDs (Variable Frequency Drives) or just plain old drives. As a result, when you are searching online for a video to explain something, it’s worth using all three of those terms, alongside the inverter manufacturer’s name and the problem to make sure you get the right result.While inverter maintenance can be daunting, it isn’t difficult When you do move on to maintenance, step one is simple; make sure that the unit is free of dust. This is as easy as vacuuming the heatsink with an ESD (Electrostatic Discharge) vacuum cleaner when you perform routine maintenance or investigate a problem. While you are checking for build up of dust and daily grime, check the filters. They will probably have to be replaced during annual maintenance, but high use might mean they need to be replaced more often. The control panel itself should be well ventilated and free of dust as well, if it isn’t it can overheat, which is the number one cause of inverter damage and the most common reason contractors contact us for replacement units. Before you put your vacuum and duster away, you should make sure that the inverter unit’s location is clean and as sheltered from the elements as possible. Because it’s normally situated on a roof, it’s not going to be perfect, but the units are designed to take a limited battering. That doesn’t mean it’s okay for them to be covered in leaves, surrounded by rubbish or immediately beneath the guttering outlet though! Before you put your vacuum and duster away, you should make sure that the inverter unit’s location is clean and as sheltered from the elements as possible Get out the spanner Once you’ve finished these steps, you are done with dusting for now, it’s time to get out your screwdriver and your spanner. Step one is to make sure the fans on the inverter are operating normally, without noise and with nothing blocking their rotation. The fan keeps the internal components running effectively, just as it does on PC, and if its function is impaired the capacitors will overheat and the inverter will fail.When you install or maintain an inverter on an air conditioning system, it is a sensible precaution to back up the drive parameters to your laptop The next job is to grab your spanner and make sure the power terminals are on tight. Loose connections cause arcing, overheating and even melting of components and are easily checked during any kind of maintenance and repair. While we are still in the realms of the work your apprentice can do with their eyes closed, you should also make sure that the inverter’s removable LCD control pad is stored sensibly and not continually attached to the drive. If it remains attached, there is a chance the display will stay on permanently, which means that when you need it to diagnose a problem, it will probably already be burnt out. Break out the laptop When you install or maintain an inverter on an air conditioning system, it is a sensible precaution to back up the drive parameters to your laptop. It takes minutes and is normally done by using the removable LCD control. In fact, it’s often as simple as selecting ‘PARs’ and then ‘BACKUP’ from the menu. If you struggle, there are lots of videos on YouTube, like this one, which explain the process for each drive. As a result, if the inverter ever does need replacing, you can whip out your backed up parameters and order a new or refurbished one easily, before reloading the parameters to the replacement and getting up and running in no time. Your customers will think you are a power electronics genius, as well as a HVAC expert, and they will be loyal for life; especially of you save them on a hot day! If you follow these simple measures, you will find that the inverters in your customer’s air conditioning units last much longer and no motors will have to run the equivalent of a cross country, thanks to a lack of inverter control.
Carrier launched its BluEdge tiered service program after hearing from customers looking for a streamlined experience and a reliable, invested partner throughout the equipment’s lifespan. Carrier conducted a customer survey before launching BluEdge, and the common theme was a need for Carrier to articulate more clearly its value proposition and to simplify its service offering. Carrier launched BluEdge at the end of June in three businesses within the company, including the North America Commercial HVAC Service segment. The global pandemic has led to changes in priorities and requirements for commercial building spaces - indoor air quality is a chief concern for both owners and occupants. air quality assessments “We are incorporating Carrier’s Healthy Buildings solutions - such as air quality assessments and retrofits for upgraded filtration and controls - into the BluEdge service tiers,” says Ajay Agrawal is the Senior Vice President of Strategy & Services at Carrier. “One of the easiest ways to ensure high-quality indoor air is to keep a building’s HVAC system properly maintained.” The backbone of the BluEdge suite of HVAC services is Carrier SMART Service Carrier's HVAC business has signed up more than 200 service agreements since the launch of BluEdge and introduced a specialized first-year service offering on qualifying commercial equipment purchases in the U.S. and Canada. Technology helps to enable BluEdge. The backbone of the BluEdge suite of HVAC services is Carrier SMART Service, an Internet-of-things-enabled connected service platform. monitoring HVAC performance Every applied chiller leaving the factory is enabled for connectivity, and Carrier is embarking on a retrofit campaign to connect previously installed equipment. The company analyzes hundreds of parameters generated by connected equipment in real time using SMART Service, and they also monitor HVAC performance in BluEdge Command Centers (currently in Bengaluru, India, and Kennesaw, Georgia). Carrier is integrating and building up both capabilities to create an even more seamless experience for BluEdge customers - this includes technologies such as remote intervention, prognostics, and artificial intelligence (AI). cost-Effective solutions “At Carrier, we put the customer front and center, and we are constantly soliciting feedback for how to improve our products and services,” says Agrawal. “Carrier’s vantage over the total HVAC lifecycle enables us to provide innovative and cost-effective solutions for our customers. Maintaining our own equipment allows us to unlock even more value for customers.” BluEdge is designed to appeal to all customers, especially those who might not typically go to the OEM for service plans or even break-fix emergencies. The flexibility of the BluEdge offerings - which include Core, Enhance and Elite levels - ensures that all customers can find a suitable Carrier service program. Carrier is prepared to work with each customer to customize a maintenance program tailored to specific needs and budget, says Agrawal. Customizable maintenance programs We know how to optimally run it, and we know how to maintain peak performance" The BluEdge tiers are designed to appeal to customers in three broad levels. The Core tier is geared towards the customer who primarily maintains their HVAC equipment with in-house technicians - the Carrier customer portal, performance dashboards, and remote inspections can assist those in-house techs. On the other end of the spectrum is the Elite tier, which is for the customer that wants a comprehensive maintenance program. They can hand over the keys to their utility room, and Carrier takes care of the rest. The Enhance offering - the middle tier - is flexible enough for the customer who wants something a bit less comprehensive but still requires Carrier’s expertise. Carrier knows its equipment inside and out, having developed the core technologies, designed the equipment, manufactured it, and installed it, says Agrawal. “We know how to optimally run it, and we know how to maintain peak performance,” he says. remote monitoring centers At the same time, Carrier has built up and is rapidly expanding its service capabilities - including thousands of technicians, a global replacement parts distribution network, and remote monitoring centers called BluEdge Command Centers to analyze and optimize equipment performance. Carrier is uniquely positioned to offer customers an end-to-end, total lifecycle solution for HVAC equipment and building solutions, says Agrawal. The Carrier BluEdge service platform does not just apply to HVAC; they are also rolling out BluEdge across Carrier’s entire portfolio, including products within the refrigeration and fire and security segments.
As schools work to reopen safely in the midst of a global pandemic, HVAC is at the center of the mission. Adequate ventilation and effective air filtration are critical elements to ensure safe indoor air quality for educational institutions. Many schools are housed in older buildings that may not have been adequately maintained. Transforming them to address the new challenges of minimizing exposure to the novel coronavirus is that much more difficult. In fact, a recent study by the U.S. Government Accountability Office found that more than half of the nation’s school districts have outdated building systems. Some 40% of the nation’s 13,000 school districts need new or updated HVAC systems in at least half of their schools - that’s almost 40,000 schools that have issues of poor indoor air quality. Funding is an ongoing problem, especially as the pandemic has undermined the financial health of many school systems. interior building components Even so, classroom air quality is now more important than ever before. Introducing more fresh air into a building - with better ventilation - is an important consideration to minimize spread of the novel coronavirus. Already, many schools are chronically under-ventilated. Extending HVAC system operating hours can provide more ventilation before and after the building is occupied. Building code standards typically require schools to circulate the air inside classrooms at least three times per hour. With the threat of COVID-19, the recommendation is to target five clean air changes per hour. However, increasing outdoor air ventilation comes with a toll of more indoor humidity and less comfortable temperatures. Additional dehumidification is needed to avoid condensation on interior building components such as piping and ductwork. And the solutions are not one-size-fits-all. supplemental air cleaning Related to filtration, ASHRAE suggests use of MERV 13 filters, which can capture particles as small as 03-1.0 microns There are many variables in terms of the educational facilities and HVAC systems such as complexity, flexibility, age and condition. Mechanical needs of each school depend on available resources, school demographics and building characteristics. As classroom occupancy becomes less dense through social distancing, the changing impact on HVAC needs should be factored in, too. In addition to ventilation, there are considerations of filtration and supplemental air cleaning. Related to filtration, ASHRAE suggests use of MERV 13 filters, which can capture particles as small as 03-1.0 microns. However, higher efficiency filters can restrict airflow and cause strain on HVAC systems, especially older models. An alternative is using portable air filters with HEPA filtration for each classroom. Another consideration is possible use of UV-C for in-duct air disinfection, although the systems must be compatible to existing HVAC systems. airborne infectious diseases There are also upper-room germicidal UV-C fixtures for infection control, which work by interrupting the transmission of airborne infectious diseases in high traffic communal areas. Use of bipolar ionization is another way of deactivating airborne viruses using proactive air purification. HVAC-mounted devices use positive and negative ions to destroy viruses for cleaner, healthier air and less risk of infections. However, there is limited information about the effectiveness of ionization systems, especially related to the novel coronavirus. In addition, schools should examine air handling systems to ensure dampers are connected, fan belts are operative, and that cooling and heating coils are working. Cleanliness of units, condensate drain pans and related components is also paramount.
The Tennessee Valley Authority (TVA), the power provider in the United States, is offering incentives to businesses and schools to install UV-C germicidal lights to fight germs in indoor air. Customers that buy from TVA’s Preferred Partners Network can receive a $30-per-ton incentive toward adoption of approved UV-C technologies, which remove viruses and bacteria from indoor air. “Schools and businesses realize they need solutions to purify indoor air, and we want to help them install it as they reopen,” says Jason Snyder, Manager, TVA EnergyRight. Commercial HVAC systems UV-C light is a short wavelength ultraviolet light used to disinfect air. Studies show UV-C is 99.9% lethal to bacteria, fungi, viruses and other microorganisms, and is an alternative to chemical disinfection. The technology has been commercially available since the 1930s, and UV rays have been used to treat disease since the late-1800s. The technology has historically helped to control outbreaks of other airborne pathogens over the years While research is continuing to assess the effectiveness of UV lights against the coronavirus that causes COVID-19, the technology has historically helped to control outbreaks of other airborne pathogens over the years. Since the emergence of COVID-19, ultraviolet germicidal irradiation (UVGI) has taken a higher profile as a technology that could have an impact when installed in the ductwork of existing commercial HVAC systems. Inactivate airborne microorganisms The technology can ensure safer indoor air at hospitals, schools, reception areas, retail establishments, nursing homes, churches, hair dressers and business officers. TVA is a corporate agency of the United States that provides electricity for business customers and local power companies in parts of seven Southeastern U.S. states, serving nearly 10 million people. According to ASHRAE, UVGI systems must deliver a sufficient dose of UV-C rays to inactivate airborne microorganisms within a 2-ft. (0.6 m) minimum irradiation zone down the length of a duct or plenum, providing roughly 0.4 seconds of exposure time in moving air. An irradiation level, Ultraviolet Rating Value (URV) of 13 is the minimum recommended UV intensity level to deliver a sufficient dose to inactivate airborne microorganisms. Improve indoor air quality Another CDC recommendation is to increase ventilation and outdoor air flow by opening windows and doors Demand for air filters and UV lights has been on the increase as HVAC customers have looked for alternatives to improve indoor air quality and negate spread of the novel coronavirus. Use of additional filters and UV light is among the recommendations of the Centers for Disease Control and Prevention (CDC) before workers return to offices after the pandemic lockdown. Another CDC recommendation is to increase ventilation and outdoor air flow by opening windows and doors and using fans to dilute recirculated indoor air. Milestone Electric, a Dallas, Texas, HVAC installer, says sales of in-home UV light units have doubled this year compared to 2019. Less-Expensive alternative “Some people ordered them before the pandemic, but they weren’t aware of the full benefits until recently,” Milestone Electric Spokeswoman Britton Swanson told the Dallas Morning News. UV lights are a less-expensive alternative (about $1,300) to the use of HEPA filters (about $3,000) to improve air quality. Combining both is the best combination to decrease chances of spreading the virus. Even before the pandemic, people spent about 90% of their time indoors. With the emphasis on staying home to avoid spread of the virus, the number could be even higher.
Viessmann heating, cooling and ventilation products have been selected by PERI GmbH, one of the suppliers of formwork and scaffolding systems, as well as civil engineering solutions, for Germany’s first 3D-printed house. Located in the North Rhine-Westphalian town of Beckum, the two-storey, 160 m² single-family home is currently under construction. The 3D printing process has already been applied to the walls of the house. A nozzle applies special concrete in layers. The print head moves over three axes on a fixed frame and is controlled by just two people. It takes just five minutes to print one square meter of a double-shelled wall. Energy efficiency rating This innovative technology saves more than time compared to conventional construction methods; it also significantly reduces resources and allows for greater freedom in building design. When completed, the first home will be heated and cooled by a high-efficiency Vitocal 200-S air/water heat pump and ventilated by the Vitovent 300-W ventilation system. The temperature will be perfectly regulated all year round. The new Vitoset heat pump-hybrid cylinder WPU 300/100L will be installed as a heating buffer and DHW cylinder The heat pump is highly efficient with a COP (coefficient of performance) of up to 5.0 (EN 14511 at A7/W35°C) and has an energy efficiency rating of A++. The new Vitoset heat pump-hybrid cylinder WPU 300/100L will be installed as a heating buffer and DHW cylinder. The hybrid cylinder solution saves a lot of space since it consists of one 300-liter enamel DHW cylinder and a 100-liter buffer cylinder. The cylinder is delivered in one piece and is completely insulated. Additional residential projects Fresh, clean, and especially germ-free ambient air is more important than ever in times of COVID-19, and so the Vitovent 300-W central home ventilation system will also be installed in Germany’s first 3D-printed house. This quiet ventilation system is particularly quiet and compact and recovers up to 92 per cent of the heat from extracted air during the cold weather, saving heating costs. In combination with the Vitocal 200-S heat pump, the ventilation can be conveniently controlled using the free ViCare app on a smartphone. PERI GmbH expects 3D printing to gain in importance in the next few years, and additional residential projects are already in preparation.
BG Energy Solutions (BGES) has been appointed to design building management systems for Keadby 2, a new 840MW gas-fired power station under construction in North Lincolnshire. Keadby 2 power station Keadby 2 is expected to become the cleanest and most-efficient gas-fired power station in Europe, enabling the UK to move away from coal in the 2020s and to integrate more renewables into the power grid. It will also be capable of being upgraded to further decarbonize its generation through carbon capture or hydrogen technology, as routes to market develop. When completed, the power station will provide electricity to up to 840,000 homes and businesses in the UK. Siemens Energy is the principle contractor delivering the power station, with specialist HVAC company, Exyte Hargreaves supporting the delivery of mechanical and electrical / HVAC within five buildings on the site. BGES has been appointed to design the building management systems, which will be commissioned in spring 2021. BMS and energy solutions major BGES is a member of the Engineering Construction Industry Association and adheres to the NAECI framework BGES is one of the UK’s renowned BMS and energy solutions companies, with roots dating back to 1995. The company has offices in Sheffield and London and is known for its unique approach to customer challenges, using state-of-the-art technologies. BGES is a member of the Engineering Construction Industry Association and adheres to the NAECI framework (the National Agreement for the Engineering Construction Industry). Adrian Woodhead, Project Lead at Exyte Hargreaves said “As a committed and responsible member of Britain’s Energy Cluster we are delighted with this appointment. Our delivery build methodology incorporates the use of our MMC Offsite Assembly Facility to supply horizontal modules, vertical risers and a prefabricated plant room, housing the centric energy center and heating distribution for the whole facility.” Design and build BMS systems Simon Shaw, Project Director at BG Energy Solutions (BGES) said “We are delighted on our appointment to design and build BMS systems for the world-renowned Keadby 2project. In doing so we’re proud to play our part in delivering a future-ready power station that will help the UK transition to a net zero energy system.” Commercial operation of Keadby 2 is scheduled for 2022 as coal power plant closures come into effect.
Infinitum Electric, creator of the breakthrough printed circuit board (PCB) motor, has announced the first product shipment from its revolutionary line of IoT-enabled electric motors to Comefri USA, a renowned HVAC fan original equipment manufacturer (OEM). Twenty-five trillion kilowatt hours of electricity are consumed per year, of which 45 percent is consumed by electric motors. This leaves a significant opportunity for many industries, including HVAC, to develop or replace machines using traditional motors with more efficient electric motors, which consume far less energy. Infinitum Electric is enabling this transition with its IEs series of motors. IoT-enabled IEs series electric motors Infinitum Electric’s IEs205 10 horsepower electric motor will be used by Comefri to power more efficient, space-saving commercial plenum fans, used in commercial and industrial buildings to deliver more sustainable heating and cooling airflow, along with helping in fighting climate change. The company’s award-winning electric motors meet the industry’s highest standards for efficiency and are significantly quieter than the competition. By replacing traditional iron and copper wire winding components with an IoT-enabled circuit board, Infinitum Electric motors are not only smaller, quieter and up to 50% lighter, but they have fewer structural requirements than others on the market. Cloud-connected IoT capabilities The motor’s cloud-connected IoT capabilities enable remote monitoring of key operational data Additionally, the motor’s cloud-connected IoT capabilities enable remote monitoring of key operational data, such as power, speed and temperature, for superior smart building and HVAC equipment intelligence. Over-the-air software updates to motors also enable customers to benefit from new features and enhance existing efficiency and operations. “Infinitum Electric’s motor provides Comefri USA’s independent design team with access to the latest high horsepower, integrated control, EC motor technology for projects of all sizes, in a robust, and field repairable package,” said Sylvie Braun, Chief Operations Officer (COO) of Comefri. Sylvie adds, “We’re excited to lead the way in innovative, environmentally-responsible HVAC design and look forward to the impact it will have in the marketplace.” Integrated with printed circuit board (PCB) technology Unlike 20-week lead times required by other motor competitors, Infinitum Electric’s motors can be manufactured with common printed circuit board (PCB) technology, drastically reducing the cost and complexity involved in motor manufacturing. Once production is fully ramped, Infinitum Electric’s standard lead time will be less than six weeks. “Much like an LED light bulb, our next-generation, integrated electric motors help HVAC customers like Comefri stand out as the planet’s most sustainable choice to power the world’s heating and cooling systems,” said Ben Schuler, Founder and Chief Executive Officer (CEO) of Infinitum Electric. Ben adds, “In addition to being the responsible choice for our environment, they contribute to a much lower cost of ownership over time. We’re thrilled to achieve this major milestone of shipping our first product and look forward to ramping up production to deliver a myriad of units in the coming years for customers in the HVAC, home appliance, electric vehicle and other industries.”
It is common knowledge that a geothermal heating and cooling system provides a school with one of the most energy efficient climate control options available. What tends to be overlooked is that there are several geothermal system options available, which offer varying degrees of cost savings. Bard offers a type of geothermal system that provides the climate control and ventilation that a classroom deserves and maximizes cost savings. This was the challenge recently posed to Bill Stalker, a Marketing Manager for the Tennessee Valley Authority. To assist his efforts, Mr. Stalker called on Blake Neville, P.E., of Neville Engineering to perform an independent study of two different geothermal systems. Bard system chosen for the study The Bard system chosen for the study featured a 4-ton packaged QW series ground source heat pump The Bard system chosen for the study featured a 4-ton packaged QW series ground source heat pump with its patented, built-in energy recovery ventilator. The other system consisted of a 3-ton console heat pump and a separate, dedicated ventilation air unit (both provided by two widely-used, well-known HVAC manufacturers.) General assumptions like the number of occupants, ventilation loads, cooling/heating hours, installation costs and well drilling expenses were identical for both systems. Increases Savings Per Classroom Based on the study’s numbers, the Bard unit would not only save a school district $1,300 per classroom in upfront installation costs, it would continue to save them $493 per classroom every year in operating costs. Multiply both the upfront and operating savings by the number of classrooms in one’s school, and it all adds up to additional budget money for a few more field trips, a few more library books, a few more teaching supplies, etc.
Nicknamed the gateway to Southern California, the city of Ontario, as well as neighboring city Montclair, is home to the third largest elementary school district in California, the Ontario-Montclair School District (OMSD). Founded in 1884, the district also incorporates portions of the city of Upland, and unincorporated areas of San Bernardino County, comprising 24,000 students in 26 elementary schools and six middle schools. Ontario-Montclair School District Ontario-Montclair School District’s overall mission is simple yet speaks volumes to its dedication to all students, to do whatever it takes to guarantee its commitment in providing the highest quality education for all students. To meet this mission head-on, OMSD contracted with TMAD Taylor Gaines, a professional engineering consulting and services firm. Ontario Montclair School District was interested in reducing their overall energy costs by 20%" “Ontario Montclair School District was interested in reducing their overall energy costs by 20%, they along with other school districts throughout California were mandated to reduce their overall energy costs,” said John Simmons, RCDD, LEED AP, and Project Manager for TMAD Taylor Gaines. He adds, “We initially ran some numbers based upon information we found on Bard HVAC’s website, and through consultation with Geary Pacific Supply, Bard’s largest West Coast distributor.” Geary Pacific, distributor of new HVAC units Based upon the scope of the projects in consideration, the money available to fund them and the overall cost of the units in consideration, as well as overall potential energy savings, TMAD Taylor Gaines recommended that OMSD select Geary Pacific as the distributor of the new HVAC units. “We considered other companies as part of our overall recommendation but in all honesty we were impressed by a couple of things. First, Bard Manufacturing had a wealth of product and technical information about their products on their website, including case studies of other customer successes. That in combination with Geary Pacific’s previous experience working successfully with the School District made our recommendation a simple one,” added John Simmons. Bard wall-mounted HVAC units deployed “Our District was already familiar with Bard because we had success using some of their other wall mounted units on several of our modular school buildings,” said Craig Misso, Director of Facility Planning & Operation at Ontario Montclair School District, adding “Our goal was to not only upgrade our facilities and make them more energy efficient, but also work to reduce some of the HVAC noise inside the classroom, as well as save on the purchase, operation and maintenance of all of the units at our schools.” TMAD Taylor Gaines and Geary Pacific’s approach was to do the retrofit in several phases. The pilot project encompassed one site, Sultana Elementary School, which included 24 re-locatable buildings, made up of both newer and some older construction. Bard WG*S Step Capacity Series units with CO2 sensors TMAD Taylor Gaines and Geary Pacific started doing groups of schools, encompassing 14 different building sites “Sultana was a great school for the pilot because there were a lot of little issues to contend with and work through,” stated Simmons, adding “The Bard WG*S Step Capacity Series units with Energy Recovery Ventilators and CO2 sensors worked great and we were initially very surprised at how quiet they actually operated.” After that, TMAD Taylor Gaines and Geary Pacific started doing groups of schools, encompassing 14 different building sites. Group one included 6 schools and approximately 83 units while Group 2 included 8 schools and 101 units. It was during the second group of installations that TMAD Taylor Gaines realized that putting in units that required the installation of underground gas piping was not the best solution for all classrooms. Bard’s Quiet Climate 2 units That’s when Geary Pacific recommended utilizing Bard’s Quiet Climate 2 units with Energy Recovery Ventilators and CO2 sensors in about 1/3 of the overall installation. “Bard’s Quiet Climate 2 units are some of the most energy-efficient HVAC units on the market today,” said Maury Tiernan of Geary Pacific, adding “Plus the operational sound level is extremely low and is greatly appreciated by the students and teachers.” John Simmons said, “We were really pleased at how easily these units were able to be retrofitted into the re-locatable classrooms. There are almost no changes and smooth sailing in almost all cases.” Quiet, efficient operation The dramatic reduction in operating noise levels was an added improvement and benefit for which Craig Misso was particularly proud. “At Sultana, we invited some of the teachers and our principal over to see the new classrooms. Our principal asked, ‘Why aren’t the new HVAC units running’? I had to laugh, because I knew they were on. They were just so quiet nobody could tell that they were working. That moment sold every teacher on the Bard units,” added Craig Misso of Ontario Montclair School District. “From the very beginning, Geary Pacific became our partner in the success of the project,” stated Simmons, adding “Always available to answer questions on-site and knowledgeable about all aspects of the product and installation I can honestly say they can’t do anything wrong by me. Geary Pacific and the engineers at Bard Manufacturing came through in every way possible and more.” Wall-mounted heating and cooling equipment expert Bard’s HVAC products offer a combination of quiet operation, and energy efficiency Over thirty years ago, Bard Manufacturing began solving the comfort needs of schools across the country by providing wall-mounted heating and cooling equipment. Bard’s HVAC products offer a combination of quiet operation, and energy efficiency, with unsurpassed quality and dependability that make them the #1 choice for schools. With three, state-of-the-art manufacturing facilities and a global distribution network, Bard’s commitment to quality and product innovation begins with its commitment to research and development. With features like self-diagnostics and self-programming energy monitors, Bard delivers products that provide tangible solutions for any school. Energy and cost savings “The Bard units reduced ambient classroom noise levels by over 75% and further gave us a 50% savings in energy,” said Misso, adding “This savings allowed us to also install software on our computers that automatically turns off the lights and the AC, when the classrooms are unoccupied, which further increased our savings. Our hope is to have the funds necessary to install all 280 Bard units as specified by TMAD Taylor Gaines.” Misso concluded, “Geary Pacific has been extremely professional and service oriented throughout the project. Because of our School Board’s commitment to energy conservation, our District will receive a dual reward, recognized energy savings and efficiency with an enhanced classroom environment for our students and teachers. We couldn’t ask for anything more.”
Living in the McLean County Unit District No. 5 region ensures one thing that children will receive one of the finest educations available. With one of its high schools ranked in the Top 50 Public High Schools in Illinois and listed in U.S. News & World Report’s Nation’s Top Schools, Unit District No. 5 is the place where excellence in education takes on a new meaning. Replacing antiquated HVAC systems But excellence doesn’t come without a price. In the current economic environment, maintaining and improving upon existing school facilities remains one of the most significant challenges for administrators and educators alike. That’s why officials turned to a solution that proved both unique and highly practical, when six schools in the district faced antiquated HVAC systems, nearing the end of their life-cycle. Upgrading and retrofitting school HVAC systems CM Engineering and Earth City Distributing understand the challenge of maximizing facility investment dollars CM Engineering and Earth City Distributing understand the challenge of maximizing facility investment dollars when it comes to upgrading and retrofitting school facilities. They also realize the key role those facilities play in keeping a school educationally competitive. The first schools from the Unit 5 School District to undergo retrofits included Oakdale Elementary School and Glenn Elementary School. Each school had ceiling limitations which made a conventional rooftop boiler-chiller system impractical. “We wanted a system that would be easy to service and maintain, provide cooling and be energy efficient,” said Jeff Monahan, Director of Maintenance for McLean County Unit District No. 5. Bard QTEC ground source heat pump installed “We had experienced earlier success working with a school in McComb, Illinois, where using a new type of piping system and the Bard QTEC ground source heat pump saved us over 50% in installation costs,” said Kirk Mescher, President of CM Engineering. Kirk adds, “Using Bard Manufacturing’s QTEC product in the Unit 5 School District applications was not only practical, it was the win-win solution in terms of reliability and efficiency in operation.” Between 2006 and 2008, 112 Bard QTEC units were installed in 6 schools. “Between CM Engineering’s unique design approach and Bard’s very efficient QTEC unit, the installation at all of the Unit District No. 5 schools couldn’t have gone any better, “ said Mike McManus, Owner of Earth City Distributing, a local Bard distributor, adding “Not only are the units energy-efficient and incredibly quiet when operating, they can be easily accessed for service.” Bard’s wall-mounted heating and cooling equipment Over thirty years ago, Bard Manufacturing Company began solving the comfort needs of schools across the country by providing wall-mounted heating and cooling equipment. Bard’s products offer a combination of quiet operation, and energy efficiency, with unsurpassed quality and dependability that make them the #1 choice for schools. With three, state-of-the-art manufacturing facilities and a global distribution network, Bard’s commitment to quality and product innovation begins with its commitment to wide-scale research and development (R&D). With features such as self-diagnostics and self-programming energy monitors, Bard Manufacturing Co. delivers state-of-the-art products that provide tangible solutions for any school’s needs. Enhanced serviceability The QTEC’s serviceability is also a contributing factor to Unit District No. 5’s overall success “What we got by using Bard Manufacturing’s QTEC product was an HVAC system that not only provided heating and cooling, but did so while also providing more than a 40% savings in total utility costs, without upgrading windows or insulation,” said Jeff Monahan. The QTEC’s serviceability is also a contributing factor to Unit District No. 5’s overall success. “I love the fact that the units are virtually maintenance-free,” stated Monahan, adding “They’ve basically reduced our service calls to near zero.” Energy estimate from CM Engineering “Whenever any of our school clients are open to the idea of having an in-room unit installed, we always spec the Bard QTEC units. In fact, in all the years, since we’ve been in business, we’ve never installed anything else inside a classroom,” said Kirk Mescher, President of CM Engineering. With Unit District No. 5, CM Engineering initially gave them an energy estimate that proposed they could provide the schools with heating and cooling at no additional operating cost. Energy and cost savings Mescher adds, “Not only were we able to achieve that goal, but because of the Bard QTEC units, we were able to surpass it, helping the schools reduce their overall utility costs significantly, in some cases by over 40%.” He further stated, “For any school, anywhere in the country trying to save money on installation, service and energy costs, not to mention lowering overall ambient noise in a classroom, these are significant enough results that simply can’t be ignored.” Quiet and comfortable QTEC units Bard’s QTEC unit is designed to be installed inside the classroom, fully engineered to be quiet and comfortable Success with the retrofit of their six schools has, in fact, led McLean County Unit District No. 5 to approve installation of additional Bard QTEC units in a seventh school during the summer of 2009. Bard’s QTEC unit is designed to be installed inside the classroom, fully engineered to be quiet, comfortable and aesthetically pleasing. QTEC units are designed and tested to operate at 20% above federal standards with easy installation features that make servicing fast and simple. Bard’s QTEC units can provide the following features: A one-piece factory unit with individual room climate control Designed for fast installation and easy servicing Sound deadening insulation Simple utility hookups Integrated energy recovery ventilator Controlled dehumidification A rating for efficiency that is 20% above Federal Standards
Round table discussion
Sustainability has been a core concept in the HVAC industry for decades. Environmental concerns often drive product innovation, for example. However, environmental challenges persist and there is ongoing pressure on the industry to respond responsibly. We asked our Expert Panel Roundtable: What steps is the HVAC industry taking to address climate change and sustainability?
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 has been the impact of the coronavirus pandemic on the HVAC market?