Safety standards

Eurovent Middle East, as the region´s industry association for Heating, Ventilation, Air-Conditioning and Refrigeration (HVACR) equipment manufacturers, is calling on building owners, operators and facility management providers as well as healthcare facilities to carefully observe the following recommendations by the industry to minimize risks related to the transmission of airborne viruses through ventilation and air-conditioning systems and support the government in its efforts to contain the outbreak.  The current crisis highlights the responsibilities of HVACR engineers, along with service and maintenance personnel, building owners and operators to carefully assess building ventilation systems and their conditions. Proper ventilation, with a higher degree of fresh air supply and air exchange, the use of the correct filter types and careful maintenance can be important factors in the containment of the coronavirus outbreak.  Industry best practices  Eurovent Middle East outlines basic recommendations, which directly or indirectly bear on the spread of viruses and the well-being of people in occupied spaces. These recommendations are based on an industry wide consensus and should provide guidance on best practices in relation to air filtration and ventilation in the current crisis.   These measures can have an essential effect in reducing the impact of the disease  While in most cases ventilation systems are a given and cannot be modified in the short term, conducting careful assessment of the ventilation installations and carrying out the correct maintenance measures can assist in preventing the propagation of the virus.  Minimizing COVID-19 Effects  Mr. Brian Suggitt, President of Eurovent Middle East said, “We all have our responsibility to support the government’s efforts to contain the outbreak of the coronavirus and minimize its effects. We have put together several recommendations in regard to ventilation and air filtration which we see as important to be followed.”  “While just a small part of the fight against the virus, these measures can have an essential effect in reducing the impact of the disease on our healthcare system.” The industry association has published documents with recommendations for building owners, operators and maintenance personnel on air-filtration, ventilation and maintenance procedures.   For further information and expert advice on the recommendations or additional measures like installation of UV (ultraviolet) systems or air cleaners, the association encourages individuals to reach out to reliable suppliers, manufacturers or to the association.

Hi-line Industries, a supplier to the compressed air sector, has a solution for all companies seeking a temporary way of delivering high-quality, dry compressed air. An affordable and responsive rental scheme is now in place at the company, covering Hi-line’s comprehensive range of compressed air dryers. Although hiring a compressor is easy enough for short-batch emergency runs or exceptionally busy periods, finding specialist drying equipment is not so straightforward. And yet air quality is just as important in temporary periods as it is during long-term regular operations. Vast Range Of Compressed Air Dryers Hi-line overcomes this issue by offering hire options on a vast range of compressed air dryers, including refrigerant, heatless, heat-regenerative and point-of-use models. High-quality, competitive filtration packs can also be provided. The company’s Tundra refrigerant air dryers, for example, are renowned for their robust and reliable performance. Moreover, the newly improved single-cell heat exchanger gives the most efficient transfer of heat at the lowest energy cost. Hi-line can offer its proven HPSA units, which come in ‘plug and play’ format mounted on skids For those seeking heatless dryers, Hi-line can offer its proven HPSA (Heatless Pressure Swing Adsorption) units, which come in ‘plug and play’ format mounted on skids with their own filtration package as standard. Performance is assured with HPSA range, as it is with Hi-line’s series of heat-regenerative adsorption dryers, as well as its point-of-use desiccant adsorbers. The latter are ideal for the small-scale separation of humidity from compressed air systems. Automatic Energy Management Systems From as little as £50 per week, Hi-line can supply from a huge stock of ready-to-go compressed air dryers, including Class O, Class 4 (+3°C PDP) and standard -40°C PDP desiccant units. Offering capacity from 5 to 5000 cfm, both short and long-term hire requirements can be fulfilled. Importantly, control packages are available to suit every application, including heatless, heat-regenerative, pneumatic, 24V, 240V, dewpoint and AEMS (automatic energy management systems). Regardless of what type of dryer is required, delivery to site includes set-up by a fully qualified Hi-line compressed air engineer, providing both convenience and peace of mind. If desired, a smart controller can be added to all makes of dryer as an energy-saving option, while N2 and O2 generators are also available.

There is currently no evidence that Coronavirus (COVID-19) is airborne, the virus appears to spread via droplets and direct contact with contaminated surfaces and objects. However, as with any air conditioning system, the design and maintenance is key to its performance and the health and wellbeing of the building occupants. Research suggests that increased humidification has a large impact on reducing the transmission of some airborne virus, as will the level of filtration within a ventilation system. JD cooling recommends that the air space is supplied with clean air or suitably diluted with fresh clean air, and that any installed air handling/conditioning system be regularly maintained.

Trade associations and membership societies representing North America's Heating, Ventilation, Air Conditioning, and Refrigeration industry requested that federal, state, and local authorities grant "essential business" status to those technicians and engineers who are tasked with keeping the American people productive, healthy, and comfortable in these trying times. The Air-Conditioning, Heating, and Refrigeration Institute (AHRI) joined with nine other organizations, representing the HVACR and water heating equipment manufacturers, contractors, technicians, engineers, plumbers, and sheet metal contractors in issuing a statement to governmental organizations grappling with travel and personal interaction restrictions designed to prevent the spread of infection. HVAC And Commercial Refrigeration Equipment "While citizens are coping with a variety of unforeseen and unusual restrictions, it is essential that they are able to maintain their HVAC and commercial refrigeration equipment," the association leaders wrote. "Aside from providing comfort, this equipment is vital for health and safety in addition to productivity, particularly for air filtration and food and medical supply preservation, especially in this time of quarantine. When equipment fails, technicians must be able to repair or replace it as quickly as possible,” they added. "Accordingly, as states and local jurisdictions considering their health crisis travel restriction plans, we respectfully request that HVACR technicians and engineers be considered essential businesses," the statement concluded. Signing The Statement Organizations signing the statement included AHRI; the Air Conditioning Contractors of America (ACCA); the Heating, Airconditioning, and Refrigeration Distributors International (HARDI); the Air Movement and Control Association (AMCA); North American Technician Excellence (NATE); the Plumbing, Heating, Cooling Contractors National Association (PHCC), the Sheet Metal & Air Conditioning Contractors National Association (SMACNA); the Heating, Refrigeration, and Air-Conditioning Institute of Canada (HRAI); ASHRAE; and the Mechanical Contractors Association of America (MCAA).

The spread of COVID-19, commonly known as the coronavirus, continues to pick up pace globally and is increasingly a key priority and in view of the growing concern Daikin Applied (UK) Ltd and Daikin Applied Service would like to reassure the customers that they have adopted a risk-minimization approach to ensure minimum disruption to business.   Unfortunately, the onset of the Coronavirus has caused many industry implications, this is a brief update on Daikins supply chain, operations and the measures undertaken to ensure the continuation of the business and support to customers.  Precautionary measures  They have issued their employees with information to take precautionary measures as advised by the government and NHS and will monitor any changes and advise accordingly.  As a business, they have implemented further precautions:  Business trips to and from Category 1 countries and regions are prohibited until further notice. Travel to other countries should be avoided unless deemed essential and approval given by Senior Management.  Meetings where possible to be conducted via video conferencing, Skype, GoTo Meetings etc.  Communal areas are being given extra cleaning, e.g. rest rooms, canteens, door handles etc.  Staff are being asked to self-isolate in accordance with government guidelines if they have been in direct contact with someone with the virus or travelled to a category 1 country within the last 14 days.  Daikin is considering the introduction of temporary smart working arrangements to allow more flexibility and to help reduce risk.  Everyone should practice good hygiene to protect against infections.  AHU and Chiller orders  Currently their factories both in the UK and Italy are working at normal capacity and they are taking steps to ensure this continues. However, it is possible that the current situation will affect business in the coming weeks and they will keep all customers updated if the situation changes.  At present, Daikin has not seen any reduction in the level of service they get from their suppliers with this under constant review and their procurement department is in regular contact with the factories and suppliers, checking lead times and supply issues.   Daikin Applied Service  Remote workers such as their engineering teams have mobile phones and all have access to office servers via their tablets and laptops.  As Daikin’s in-field engineers are generally lone workers, they would consider that their contact with the office and other engineers will be limited and, they will continue to monitor the situation.   Daikin on site  The frequency of virtual visits may increase, and actual visits decrease Clients with chillers capable of supporting the Daikin On Site remote monitoring, and with maintenance contracts already set up to utilize this, will continue to be monitored regularly.   To reduce site attendance however, should faults occur where generally a call out may be required, then these faults will be reset (where possible) via the DoS system and monitored accordingly by one of the remote monitoring team. The frequency of virtual visits may increase (and actual visits decrease) should a reduced workforce through self-isolation occur.   Monitoring workforce health  As well as Daikin’s own locally stored spares they source spares from their factories across Europe, they purchase spare parts and materials across a range of suppliers who will in turn, purchase materials from across the globe. They will continue to monitor the health and wellbeing of the workforce along with the supply chain.  

Amid concerns about the increasing scope of the coronavirus (COVID 19), International Institute of Ammonia Refrigeration (IIAR) has announced the cancellation of its 2020 IIAR Natural Refrigeration Conference & Heavy Equipment Expo, a major industry event focused on natural refrigerants in the industrial and commercial sectors. IIAR Conference cancelled IIAR joins a growing list of HVAC&R organizations worldwide that have cancelled trade gatherings over the coronavirus. The IIAR Conference had been scheduled to take place March 15-18 at the Rosen Shingle Rosen Shingle Creek Hotel and Convention Center in Orlando, Florida (U.S.). Last year’s conference in Phoenix, Arizona (U.S.) had over 1,700 in attendance, according to the IIAR website. IIAR joins a growing list of HVAC&R firms worldwide that have cancelled trade events over the coronavirus IIAR had indicated its intention this week to proceed with the event, but changed course on March 11 after the World Health Organization (WHO) declared that the coronavirus was a worldwide pandemic. “Given this significant announcement from the World Health Organization, we have made the difficult decision to cancel the conference this year,” said Dave Rule, President, IIAR in a message emailed to registered conference attendees. “The health and safety of the conference attendees remains our primary concern.” Coronavirus pandemic threat “We trust that all of you will understand this decision and support your IIAR organization as the Executive Committee and Board of Directors begins to deal with this dramatic event,” he added. IIAR’s Executive Committee had begun developing plans “to address appropriate measures moving forward,” said Rule. “Further information concerning the cancellation of the IIAR Conference will be available over the course of the next few weeks”, Rule said, adding, “We request your patience and support as the IIAR Staff and management deal with these issues.” Global HVACR events cancelled Elsewhere in the world, two other HVAC&R industry trade shows scheduled in March were canceled, Mostra Convegno Expocomfort (rescheduled to September 8-11) in Italy and HVAC&R Japan. HVACR Live, scheduled to take place April 20-22 in London, was postponed till the spring of 2021. In addition, the ARBS (Air Conditioning, Refrigeration Building Services) 2020 exhibition in Melbourne, Australia, scheduled for May 19‐21, has been postponed.

Hybrid heating systems are becoming more and more common today as building owners, engineers and facility managers seek ways to reduce heating costs in both current facilities and new builds. Combining a large mass, non-condensing boiler with a high efficiency-condensing boiler – or “hybrid system” – ensures that a heating system is running at optimum efficiency to minimize operating costs over the course of a heating season. Why do condensing and non-condensing boilers make such a good pair? Non-condensing boilers are ideal for the core heating season months of December through February. That’s because these boilers are designed to run at higher return water temperatures above 130 degrees to maximize longevity. The average efficiencies of non-condensing boilers, such as cast iron boilers, range from 80-85 percent thermal efficiency. Condensing and non-condensing boilers  Running condensing boilers in high return temperature applications reduces their operating efficiency In comparison, condensing boilers reach their maximum efficiency – upwards of 95 percent –when the return water temperature is below dew point and are ideal for operation during the milder heating season shoulder months of October, November, March and April. Running condensing boilers in high return temperature applications reduces their operating efficiency to marginally higher than non-condensing boiler designs. By combining non-condensing and condensing boilers in a hybrid system boiler plant, users can reset building set points, reduce fuel consumption to lower operating costs and create comfortable, consistent building temperatures throughout the heating season. Hybrid boiler systems So why not just use an all high efficiency boiler plant? Consider the following benefits of a hybrid boiler system: Boiler Replacement Applications: Installing a hybrid system makes sense in existing, non-condensing replacement boiler applications. Most often, there are at least two high mass, non-condensing boilers in older boiler plants. Installing a high efficiency, condensing boiler in place of one of the failing high mass boilers now enables the efficiency benefits of the hybrid system. Further, this approach enables an incremental step in financing the overall boiler replacement capital outlay over time. New Build Applications: In short, condensing boilers cost more - upwards of 30-40 percent more than non-condensing boiler systems because of the non-corrosive heat exchanger materials required. Installing a hybrid system is more cost effective to purchase upfront and often achieves the greater portion of the energy savings of replacing an entire boiler plant with high-efficiency condensing boilers.  Product Life / Longevity: Inherent to their design, non-condensing boilers have a longer product life, up to two times that of condensing boiler designs because of their thicker cast iron design and wider water pathways. Installing a hybrid system ensures a longer life of the boiler plant dedicated to the coldest heating season months. Hybrid heating systems are becoming more and more common today Multiple industries Consider an elementary school with two large cast iron boilers – one of which needs to be replaced after many years of dependable operation. In this scenario, the cast iron boiler is replaced with a new, high efficiency condensing boiler to match the heating requirement. A hybrid system can be utilized in many facilities across multiple industriesOnce installed, the condensing boiler controller allows for the assignment of an alternating, lead/lag boiler plant so that it serves as the primary boiler over the milder heating season months and the existing non-condensing boiler is operational more for colder days. A hybrid system can be utilized in many facilities across multiple industries. More frequently, commercial buildings such as medical facilities, apartment complexes, churches, schools, colleges, nursing homes and corporate campuses, are standardizing on hybrid system boiler designs. Combining a durable cast iron boiler with a high efficiency condensing boiler can reduce wasted energy, lower utility costs and protect the environment with a smaller carbon footprint, while extending the life of the existing heating system at a lower acquisition cost.

Refrigerants used in cooling systems for homes and businesses are being replaced with alternatives that have less potential for global warming. But the transition comes at a risk: Some of the new refrigerants are flammable.  Although less flammable than gases such as propane, for example, new refrigerants can still ignite and burn with a high intensity under ideal circumstances. The new materials have low-flame velocity and are less easily ignited; however, one byproduct of combustion is toxic hydrogen fluoride. Flammability risks of non-toxic refrigerants  Non-toxic refrigerants are categorized by flammability risks. A1 designates no flame propagation; A2 indicates lower flammability; and A3 indicates higher flammability. Hydrocarbons such as propane have higher flammability (A3) and are restricted to a lower charge limit that does not address refrigeration needs of large systems. Hydrofluoroolefins (HFOs) are mildly flammable, have a low flammability limit (LFL) and have been categorized as an A2L refrigerant. They tend to burn slowly and give off little heat. Hydrocarbons such as propane have higher flammability NFPA (National Fire Protection Association) offers online and instructor-led training to educate firefighters about flammability and toxicity risks associated with new refrigerants. The training also covers asphyxiation challenges, jet stream fires, transportation issues and other life-safety considerations associated with flammable refrigerants. The training covers how to adapt response tactics to mitigate consequences from refrigerants in various types of emergencies. Strict adherence to standard operating procedures (SOPs), personal protective equipment (PPE) and self-contained breathing apparatus (SCBA) protocols and decontamination practices are also covered. Categorising refrigerant flammability The Federal Emergency Management Association (FEMA) provides funding to NFPA to develop training on the emerging technology. According to an ASHRAE report, refrigerant flammability can be characterized by three factors: Likelihood that a refrigerant leak would result in a concentration range that reaches the lower flammability limit; Presence of a sufficient energy ignition source; and Likely severity of a combustion event, and probability of a secondary fire. ASHRAE is the American Society of Heating, Refrigerating and Air-Conditioning Engineers. The Air-Conditioning, Heating and Refrigeration Technology Institute (AHRTI) and the U.S. Department of Energy (DoE) are researching the flammability of refrigerants, including factors such as refrigerant charge size, release height, leak rate, humidity, and room size and temperature. When choosing the best refrigerants, it is likely a tradeoff will be required among global warming potential, flammability and efficiency. Codes and standards Codes and standards are being modified to address the use of new materials Currently, codes and standards are being modified to address the use of new materials, although risk mitigation concerns of the fire service have historically not been considered. One issue is the risk of using large amounts of flammable gas in a refrigeration system to cool a larger room. Additional safety measures are needed to make the risk acceptable. Detection of leaks is another issue, especially the need for repeated calibration of leak detectors to ensure accuracy. More than 200 countries will be ushering in the new class of refrigerants.

Small airborne particles contribute to the spread of infectious diseases of all sorts, and current concerns about the novel coronavirus COVID-19 are highlighting the role of HVAC systems to minimize airborne disease transmission and to ensure better indoor air quality in general. Because small particles can remain airborne for some period of time, HVAC systems can play a positive role in minimizing disease transmission, specifically by: Supplying clean air to susceptible occupants. Containing contaminated air and/or exhausting it to the outdoors. Diluting the air in a space with cleaner air from outdoors and/or by filtering the air. Cleaning air within the room. Developing resources ASHRAE has developed resources to help maximize how HVAC systems can have a positive impact as the coronavirus spreads. The society recommends strategies such dilution ventilation, laminar and other in-room flow regimes, differential room pressurization, personalized ventilation, source capture ventilation, filtration (central or unitary), and ultraviolet germicidal irradiation (UVGI) (upper room, in-room and in the airstream).  ASHRAE suggests that owners, operators and engineers should collaborate with infection prevention specialists knowledgeable about transmission of infection in the community and the workplace and about strategies for prevention and risk mitigation. “The recent escalation in the spread of coronavirus disease 2019 is alarming on a global scale,” said ASHRAE President Darryl K. Boyce. “While [we support] expanded research to fully understand how coronavirus is transmitted, we know that healthy buildings are a part of the solution." ASHRAE offers guidance to building owners, operators, and engineers on how to best protect occupants from exposure to the virus and specifically how airborne particles might be circulated by HVAC systems. Practical standards and guidelines For example, ASHRAE’s recently approved position document on Airborne Infectious Diseases summarizes practical standards and guidelines that all types of facilities should follow. ASHRAE Standards that can have a positive impact on the spread of COVID-19 include those covering ventilation for acceptable indoor air quality, testing methods for general ventilation air-cleaning devices, thermal environmental conditions for human occupancy, and air quality within commercial aircraft. Another ASHRAE standard covers a method for testing UV lamps for use in HVAC units or air ducts to inactivate microorganisms on irradiated surfaces. ASHRAE also advises that new and existing healthcare intake and waiting areas, crowded shelters and similar facilities should go beyond minimum requirements. The virus Since the first notification on Dec 31, 2019, of more than 40 cases of an unusual viral pneumonia of unknown origin in Wuhan, China, the infection has spread to all of mainland China and later throughout the world, according to Healix International. The coronavirus, later designated COVID-19, infects the lungs, causing a viral pneumonia, and causes initial symptoms of fever with cough and sore throat. It can progress to shortness of breath and breathing difficulties leading to pneumonia. There is currently no vaccine or specific treatment. Among the available ASHRAE resources are a full position document, standards, publication, technical committees, research projects and material to prepare for COVID-19. ASHRAE is a global society advancing human well-being through sustainable technology for the built environment.

There was plenty to see and appreciate at AHR Expo in Orlando. And there is good news to report: Innovation is alive and well in the HVAC market. Some new products on display demonstrated genuine ingenuity. Exhibitors had enthusiasm to spare as they shared what’s new in the market with this first-time visitor to the show. HVAC is not a new market, but it is changing and, in some regards, re-inventing itself. The vibrancy, variety and sheer size of AHR Expo showed off the newest and best the industry has to offer.  ‘Better Way to Heat and Cool’ Electronics highlighted the benefits of inverter systems -- "a better way to heat and cool" -- at their press event at AHR Expo. Despite the advantages, HVAC contractors are pushing back at the new, less familiar systems. The industry is at a "crossroads." Inverter systems have variable-frequency drives that control the speed of the compressor motor, enabling lower power consumption – operating at a partial load as Innovation is alive and well in the HVAC marketLG opposed to a full load. For example, an inverter system may use only 20 amps compared to 90 amps for traditional systems. The systems are quieter, too. There are also now inverter systems for ducted systems – "the space in between that nobody is talking about". New "hydro kits" can also extend the benefits of the systems, providing radiant floor heat or the ability to melt snow from a driveway. LG Electronics also introduced a new line of IP-based controls, aimed at the 97% of commercial buildings that are 100,000 square feet or less, many of which don't have building automation systems. The controller can be used in lieu of integrating with third party systems, which can add costs. They also are introducing predictive analytics that can consider multiple conditions over time and then predict things that may happen, such as maintenance requirements. The company also emphasized the benefit of LG as part of a range of products the company provides for the home, from OLED televisions to appliances to robotic vacuum cleaners. There is an opportunity for all the devices to be connected to an LG panel and "drive the experience." Monitoring Indoor Air Quality Airthings was a new exhibitor at AHR Expo, located off the beaten path among the high-numbered booths. Even so, the company had a great show with “enormous interest,” said Oyvind Birkenes, CEO. Airthings has an indoor air quality monitoring system, with a battery-operated, wireless sensor as the main component. There Some new products on display demonstrated genuine ingenuityare actually seven sensors inside the device, monitoring radon gas, CO2 level, temperature, humidity, VOC levels, pressure and ambient light. The device can be easily mounted on the wall and provides data every 5 minutes, which is sent to the cloud to be analyzed. The cloud system provides an overview of data, which is customizable. Users can set notification levels and/or download air quality reports. The system can also be integrated with building management systems (BMS) or other dashboard displays. A hub can manage up to 50 of the sensors for larger systems, in effect, a fully independent local network. Birkenes said the device provides a “disruptive” upsell opportunity for various platforms. Cooling Towers Making a Comeback A new era of cooling towers includes products that are modular and built on a smaller scale for tighter locations, says Neal Walsh, HVAC Business Manager, Baltimore Aircoil Company. “We’re turning the concept of cooling towers on its head,” said Walsh. The new concept leverages the energy efficiency advantages of cooling towers, while opening new applications to the technology. The modules of the product can be put in place by a forklift, and it is less than half the size of a traditional cooling tower. Up to six of the devices can be installed in A new era of cooling towers includes products that are modular and built on a smaller scale for tighter locationsa row with a control panel. Low water usage enables the system to be flushed and refilled once a day – no expensive water treatment needed. In all, it is less expensive to install and maintain, and could be installed inside a building, on a roof or anywhere there is space. The product is popular with school districts, which seek to avoid refrigerants. The new design is driving a “resurgence in popularity” in the market, said Walsh. Plastic Pipes with Easy Waterproof Sealing Uponor displayed pipe systems made of PEXA (cross-linked polyethylene) plastic, featuring “crosslinking thermal memory.” The pipe returns to its original shape when heated. It is available in ½-in. to 4-in diameters for residential or commercial installations. A special tool can be used to expand the pipe to accept a fitting, and then the pipe returns to its original shape when heated to create a water-tight seal without glue or solvents. The pipes can be used for radiant heating applications, and Uponor offers “roll-out” mats (pre-assembled configurations of pipes) for easy installation.  Through a partnership with a Serbian company, the company also now offers polypropylene pipe for larger applications. There was plenty to see and appreciate at AHR Expo in Orlando SPVU Systems with Greater Efficiency Bard offers “single-package vertical units” for commercial applications in space-confined systems, whether the application is equipment cooling or “creature Many products demonstrated at AHR are also big in the education marketcomfort,” said Paul Quigley, Senior Vice President, Sales and Marketing. The factory-sealed systems ensure greater durability for mission-critical applications, such as telecommunications, data centers, etc. Bard’s products are also big in the education market (especially portable classrooms). Their line has been completely redesigned and reconfigured by Bard’s engineers; they have replaced nine major product families (and 10 million product iterations) with just two categories. The new models meet the Department of Energy’s 11EER minimum energy conservation standards for Single Package Vertical Unit (SPVU) air conditioners and heat pumps – a 22 percent increase in efficiency. They can also remove 35% more humidity than other units. The new systems use recycled denim for insulation (instead of fiberglass).  Leveraging the Benefits of UV-C UV Resources highlighted the use of UV-C spectrum light for HVAC applications. They have a germicidal lamp system that uses UV-C to penetrate the HVAC coil to eliminate microbial buildup. It keeps coil surfaces, drain pans, air filters and ducts free of organic buildup and works better than pressure washing or chemical treatment. The company also displayed a germicidal UV fixture that can be wall-mounted at 7 feet or higher in a room. Special louvers direct “germicidal irradiation” at an upward and outward angle and create a zone of UV-C to kill germs and minimizes the dosage in the lower area of the room. It's useful in doctors’ offices, public buildings, etc. LG Components’ New Compressor LG Components launched a new product – a fusion compressor (hybrid) that merges the best of rotary systems and of scroll technology. Durability-improving innovations include a more sensitive vacuum prevention device and a stronger, stress-tested discharge reed valve that withstands the harsh operating conditions posed by refrigeration applications and limits excessive sound levels. It is compatible with multiple refrigerants, including R-404A, R-507, R-407A, R-407C, R-448A and R-449A; the compressor has a capacity range of 1-6 HP Catch up on our Day One Review here. or our Day Two Review here.

When Pine Valley Ranch, a Spencerville, Ohio-based egg-breaking facility was looking for an energy efficient way to wash 600 cases of eggs an hour they turned to Consolidated Hunter, a local heating contractor, and Pickrel Brothers, a provider of industrial heating supplies to help present options. Their recommendation? Install six Weil-McLain SlimFit 750 commercial high-efficiency hot water boilers. “We’re an egg-breaking plant,” explains Evan Fleck, an owner of Pine Valley Ranch. “Our eggs come straight from the barn and are immediately washed. Then they are broken, separated and chilled. Once this is done, they are loaded into liquid tankers and shipped to be pasteurized. Every step of the process is important, especially the washing of the eggs. We need plenty of hot water for that, as well as for other daily operations.” Efficient production process The 4.5 million BTU/hour Pine Valley heating system supports seven individual heating zones The 4.5 million BTU/hour Pine Valley heating system supports seven individual heating zones. The first three zones are dedicated to the egg washing machines and supported with 750 BTU/hour boilers. The fourth and fifth zones support the clean-in-place equipment (990,000 BTU/hour heat exchangers) while the two remaining zones are for the indirect fired water heater and the on-site plant mixing station. “Every zone is critical to ensuring a high-quality, efficient production process,” says Fleck. “We have more than 900,000 chickens at this facility and they produce a lot of eggs. The Weil-McLain boiler systems provides a consistent source of hot water to accommodate this large number.” Wide range of commercial installations SlimFit boilers have been serving the heating industry since 2009 with rugged, cast horizontal heat exchanger sections that provide thermal efficiencies up to 95.8% (SlimFit 1000 & 1500 models). The boilers feature a low pressure drop design, with large water passageways to accommodate a wide range of commercial installations, including retrofit and replacement applications with older water systems. Other standard features include a composite condensate tray for heat exchanger longevity The larger SlimFit 1000-2000 models feature a narrow ‘door-fit’ profile and integrated roller casters for improved installation maneuverability in confined spaces and weight restricted areas, saving contractors time and money. Other standard features include a composite condensate tray for heat exchanger longevity, customizable control mounting location (front or side) and leveling legs, which mitigate the need for a concrete service pad. Typical heating operation conditions Control features include a setup wizard that guides the installer through the start-up process and 10 preset typical heating operation conditions. The SlimFit also features zone stacking up to 24 programmable zones without the need for additional external panels and 0-10 VDC analog output signal for easy integration with a lag boiler in a hybrid system. “We really appreciate how the Weil-McLain boiler-system enhances our operation,” says Fleck. “The equipment was installed when the facility was built so they’ve been part of our production process from the beginning. Running a plant of this size always presents challenges, but our hot water needs are not one of them.”

Fort Worth's historic downtown art-deco Sinclair building, now a Marriott Autograph Collection hotel, boasts its new variable refrigerant flow (VRF) HVAC system which raised the first-floor ceilings and cleared the roof for a new bar. Baird, Hampton & Brown (BHB) provided civil, electrical, and mechanical/plumbing engineering design services to make the building one of the most technologically advanced hotels in the world. Variable refrigerant flow (VRF) system As part of the renovation, BHB's mechanical engineers were tasked with replacing the building's traditional hydronic heating and cooling system with the increasingly popular variable refrigerant flow (VRF). VRF is a type of air-conditioning system that adjusts refrigerant flow to different areas of a building as needed, instead of distributing large quantities of refrigerant at all times. This technique creates practical zoning, giving occupants the ability to adjust their space temperature to their preferred comfort level. An added advantage is that VRF is one of the most sustainable systems on the market. "The VRF system helps The Sinclair be a more efficient and smarter building. A hotel room's AC unit will respond to the person who walks in and automatically know what set-point temperature they are looking for," stated Gibran Michel, BHB Associate and Senior Mechanical Designer. VRF outdoor units BHB's design of the hotel's VRF system was the firm's largest to date. Since VRF does not require as much ductwork and space as a traditional HVAC system, the team was able to raise the ceiling heights and bring in ornate windows on the lobby level. In addition, the VRF outdoor units were placed in the alleyway instead of the roof, which made room for a rooftop bar. The Sinclair held its grand opening in January 2020 and now offers a unique and modern experience while maintaining its stylish look and feel, thanks in part to its advanced VRF HVAC system.

A construction project in Calgary, Canada, called Cube, features several firsts. It’s the city’s first office-to-residential space conversion and real estate developer Strategic Group’s first re-purposing project. It’s also the first building in Canada to feature the latest advancement in condensing boiler heating technology from Weil-McLain. The Cube – a 52,000 square-foot, seven-story building in Calgary’s Beltline neighborhood –features 65 one and two bedroom residential rental units and is just a short walk from the city’s downtown area. Once the aging Stephenson office building, the 38-year-old building was converted to new residential and rental units in 2019. Latest Boiler Technology Cities like Calgary have seen office building vacancy rates as high as 27% in the past few years" The building’s developer, Ash Mahmoud, Managing Director of Calgary-based Strategic Builders Inc (SBI), the construction arm of Strategic Group, which owns, manages and develops office, retail and apartment properties across Canada, oversaw the conversion project. “Cities like Calgary have seen office building vacancy rates as high as 27% in the past few years,” said Mahmoud. “Rather than let downtown buildings go unused, it has been one of our core missions to convert them into residential.” In addition to incorporating contemporary designs and styling finishes, Mahmoud also sought the latest in boiler technology to heat the new development. High Efficiency Boiler System To conduct the HVAC overhaul, Mahmoud turned to Nu-Mun Contracting, a Calgary-based HVAC company offering commercial and residential plumbing, heating, and air-conditioning services. Working with SBI and the project engineer, David Muncaster, owner of Nu-Mun Contracting, devised a strategy to convert the building to a high efficiency boiler system and recommended specification of the latest advancement in condensing boiler technology: the Stainless Vertical Firetube (SVF) from Weil-McLain. Eric Cameron, project manager with Nu-Mun Contracting, oversaw the boiler installation at the building. “We have a long standing relationship with Weil-McLain, and we trust the quality of their boilers,” said Cameron. “The SVF boilers were the perfect match for the space.” Simplify Installation And Operation The SVF also meets all market-driven bid specifications, and is designed for most heating needsTo meet the building’s heating style and load, the team installed two SVF 1100 MBH high-efficiency condensing gas boilers in the building. The SVF boilers features thermal efficiencies up to 97.1%, a clover-shaped stainless steel fire tube heat exchanger for corrosion resistance, and the intuitive and user-friendly Unity™ control system to simplify installation and operation. “With superior thermal efficiencies, the SVF line offers cost savings and energy efficiencies that could allow owners to qualify for local utility rebates, if available,” said Craig Demaray, National Sales Manager with Weil-McLain Canada. “The SVF also meets all market-driven bid specifications, and is designed for most heating needs including applications in schools and other educational facilities, public institutions, healthcare buildings, offices, hotels, multi-family, churches and more.” Multiple Boiler System The high-water content design of SVF heat exchanger means a low loss header is not required providing cost savings so the boilers can simply be piped in a primary-secondary design. The on-board Unity™ control system allowed the boilers to communicate with each other in a Multiple Boiler System (MBS). A master boiler controls the modulation and sequencing of the boilers on the network In this configuration, a master boiler controls the modulation and sequencing of the boilers on the network to achieve the desired system supply temperature. “With the automatic sequencing feature, the boilers communicate directly with one another so they sequence themselves and rotate as needed,” said Cameron. “They operate to optimize energy use and efficiencies. When heat is required, the boilers will stage on as needed.” Time-Saving Installation The Cube conversion project was completed in 12 months and more than two-thirds of the building is already leased to residents. Mahmoud praised the experience with Nu-Mun Contracting. “Working together with Nu-Mun was a seamless operation,” said Mahmoud. “It was a really great relationship and, as a result, the job was a complete success.” The start-up and installation progressed smoothly in part due to the way these boilers are designed" “The start-up and installation progressed smoothly in part due to the way these boilers are designed,” said Cameron. “The SVF boilers offers time-saving installation features that include heavy-duty roller casters for improved maneuverability in confined spaces, industrial-grade leveling legs, and an end-shot burner design requiring only 18 inches overhead space.” Low Operating Costs Mahmoud appreciates the ease of maintenance that the boilers offer for the building staff “The boilers are really user friendly,” said Mahmoud. “We can even conduct the annual maintenance on the units ourselves to keep them in tip-top shape.” In addition to offering class leading serviceability, the new boilers also offer low operating costs and are expected to bring energy savings and a reduction in gas usage to the facility. But most important, Mahmoud reported that tenants are extremely pleased with the climate and comfort of the building.

Indoor comfort technologies from LG Electronics spotlighted at the 2020 AHR Expo, helped transform a 1920s art-deco office building into a brand-new luxury boutique hotel. The Sinclair, a Marriott Autograph Collection Hotel, is featured in a new case study debuting at the 2020 AHR Expo show (booth No. 6343). Future-Ready Technologies The Sinclair Hotel aims to create an unforgettable and luxurious experience for its guests in a classic 1929 building in downtown Fort Worth, Texas. The hotel’s owner and management team sought state-of-the-art technology to power, sustain and manage the entire property while maintaining the historic building’s unique design and architectural details. The Sinclair Hotel required individual control of its HVAC system throughout 164 guestrooms The hotel required individual control of its HVAC system throughout 164 guestrooms (featuring 50 different room types) and sufficient heating and cooling for the lobby bar, reception area and large basement restaurant. With this in mind, the hotel management team identified LG as a company that was not only able to fulfill a myriad HVAC needs, but also create a full building ecosystem with its range of cutting-edge technologies across an expansive portfolio. Powerful Air Conditioning Technologies In the hotel’s quest to be low-voltage, the management team has employed what is believed to be one of the world’s first applications of Power-Over-Ethernet (PoE) to a large array of end points, to help achieve many of energy-efficiency and forward-thinking goals for the Sinclair’s desired level of technological ability. With PoE installed throughout the property, a variety of LG’s award-winning products will provide a low-voltage and energy-efficient solution for this forward-thinking partner. LG’s award-winning Multi V IV Heat Recovery Units were selected for their ability to provide individual room comfort for each space within the larger property. The Multi V IV also contributes to the building’s energy efficiency, high performance and flexibility in design and installation options. Installation versatility was considered to a key factor as the historic building was restricted in regard to lower ceilings as well as limited space for out-door equipment. AC Smart controller Local HVAC and Variable Refrigerant Flow (VRF) experts, Texas Air Systems, recommend the installation of a variety of indoor solutions that ensure a quiet conditioned space, including LG’s Art Cool Mirror and Ceiling Cassettes, to accommodate the tight ceiling area within guest rooms. The unit’s quiet operation supports a tranquil guest room environment and contributed to the decision behind their selection for this property. The technology works unnoticed, contributing to the comfort and experience of a guest’s stay. LG’s AC Smart controller allowed for seamless handling of the HVAC system for the management team. This innovative control solution for a variety of applications offers a single LG platform that drives both variable-refrigerant-flow technology and energy efficiency. Property managers can now easily manage set and monitor the building’s heating and cooling performance with ease. Variable Refrigerant Flow (VRF) technology The LG connected outdoor units with slim, space-saving features were installed on the exterior of the building Prior to installing LG’s Variable Refrigerant Flow (VRF) technology, the building relied on an old chiller system to condition the entire building. The old chiller required a great deal of space in the building’s lower level. After switching to VRF, the hotel was able to gain a great deal of usable floor space for the large lower level restaurant. In turn, the LG connected outdoor units with slim, space-saving features were installed on the exterior of the building. LG has created industry-leading VRF technology to minimizes efficiency losses, provide sustainable energy savings and offer some of the lowest life cycle costs of any system on the market today. For similar costs as a traditional system, The Sinclair now has a highly reliable, energy-efficient HVAC solution that delivers comfort and convenience for its occupants. Stunning OLED TVs and Displays “Creating an unforgettable experience for my guests is of the utmost importance as a developer, and I work with some of the most innovative and forward-thinking partners around the globe when developing my properties,” said Farukh Aslam, Chief Executive Officer, Sinclair Holdings. He adds, “I am very sold on LG’s technologies and the results are quite impressive, thanks to its amazing energy-efficiency and quietness, contributing to the tranquil atmosphere throughout the property.” With an eye toward implementing cutting-edge technology, the developer also incorporated a stunning array of LG OLED hospitality TVs into every guest room – the first hotel to have OLED TVs in every guest room. LG OLED technology is a high-end category of displays that deliver a picture with incredible color LG OLED technology LG OLED technology is a high-end category of displays that deliver a picture with incredible color, even from wide viewing angles. It uses self-lighting pixels that can be individually turned on and off for exact control of image brightness and quality, delivering infinite contrast ratios optimized for high-dynamic range content. In addition to the guest room displays, a number of other LG commercial displays are also featured throughout the property’s public spaces – including the lobby, restaurants and bars. “Thanks to our strong relationship with Sinclair’s owner and building managers, there are multiple products across an array of LG business units installed throughout the property,” said Donald Decker, Director of Owner Sales, LG Air Conditioning Technologies. High efficiency AC technologies Donald adds, “Aligning with a partner like The Sinclair on our shared goals to power the building of the future, allowed an ecosystem that connects our industry-leading air conditioning technologies and other LG products to create a comfortable, elevated experience for guests across the entire property.”

The University of Texas at Austin first opened its doors in 1883 with eight professors, 221 students and a goal of creating quality higher education in the state of Texas. Throughout the last 135 plus years, UT Austin has grown to over 3,000 professors, 51,000 students and has garnered an impressive global reputation. Regardless of growth, the university takes pride in its active attention to pursuing sustainable energy solutions. In the interest of reducing the impact the university has on the local grid and environment, the Carl J. Eckhardt Combined Heating and Power Complex was built to provide energy for the campus. Energy Production Efficiency The system uses the same amount of fuel today as in 1976 with double the amount of served space This power plant has achieved an efficiency of more than 85%, meaning very little energy is lost in the form of heat. This is more than twice the efficiency of a typical power plant. With all of the advancements in efficiency, the system uses the same amount of fuel today as in 1976 with double the amount of served space. Because the energy production efficiency is more than 85%, annual savings opportunities are now on the demand side. In 2010, the Energy Management & Optimization (EMO) team at University of Texas at Austin began a 20-year plan to reduce the average energy use intensity (EUI) on the main campus by 20%. The goal was met early in 2018, so a new goal was set for at least 2% annually. This reduction in energy consumption has been taking place even while the university continues to grow. Achieving Higher Levels Of Sustainability Through initiatives, such as replacing halogen lamps with LEDs in the Texas Memorial Museum and behavioral programs encouraging students to turn off lights, UT Austin has been consistently meeting their goal of optimizing energy consumption. This allows UT Austin to reduce operating costs and achieve higher levels of sustainability. With UT Austin’s continuous growth comes an ever-evolving need for facilities With UT Austin’s continuous growth comes an ever-evolving need for facilities. Recently, UT Austin converted an old technology incubator facility with dense equipment cooling loads, known as the West Pickle Research Center, into new office spaces for faculty. Because the offices do not require as much cooling as the lab, the two constant-speed, oil-lubricated, centrifugal chillers that had previously supported the building were no longer appropriate. There was a 650 ton (2,285 kW) chiller that provided too much cooling, and a 200 ton (703 kW) unit that did not provide enough. Highly Efficient And Optimized Solution The chillers were installed in 1983 and ran on R-11, an ozone depleting refrigerant that is now banned for use in new equipment via Montreal Protocol. The chillers were past due for an upgrade and operating them wasted a lot of energy. Johnson Controls offered a highly efficient and optimized solution with a 300 ton (1,055 kW) YORK® YZ Magnetic Bearing Centrifugal Chiller. Installed in 2018, the chiller provided a perfect middle ground between the two previous chillers and was fondly nicknamed the ‘Goldilocks Chiller’ because it was just the right size for the new building load. With the flexible control options that the variable speed drive offers to meet a shifting building load, unnecessary energy consumption was curbed. Additionally, the magnetic bearing technology in the YORK® YZ dramatically increases reliability, decreases downtime and decreases the need for maintenance. Low Tower Water Temperatures The high efficiency of the YZ makes an appreciable difference in energy costs The UT Austin EMO Team appreciates the independence of the YZ chiller, saying, “We never have to worry about changing filters or checking oil levels, which allows us to focus our energy on saving initiatives rather than the upkeep of equipment.” While operating the YZ Chiller, UT Austin realized an estimated 330,000 kWh or $23,000 annual savings. The high efficiency of the YZ makes an appreciable difference in energy costs over the year compared to the old chillers previously in the building. One of the reasons the YZ chiller can save energy throughout the year is its ability to run at exceptionally low tower water temperatures, thanks to its wide operating map. Reducing Energy Consumption “We used to have to hold the entering condenser water temperature at 65°F (18.3°C) to run our chillers during the winter months, but the YZ Chiller is able to take advantage of our entering condenser water temperatures down to 45°F (7.2°C), greatly reducing the energy consumption.” The YZ is designed for real-world efficiency and operates efficiently at off-design conditions Utilizing magnetic bearings eliminates minimum speeds and lubrication systems that previously limited chillers from operating at extra low lift conditions. The YZ is designed for real-world efficiency and operates efficiently at off-design conditions, which is where chillers operate 98% of the time. Even in a warmer climate like Austin, Texas, there are still plenty of hours where the temperature is cool enough to take advantage of lower entering condenser water temperature. Sophisticated Building Technology While the chiller has been operating, exceptional efficiencies as low as 0.15 kW/ton (23 COP) have been observed. An impressive feature of the YORK® YZ Chiller is its ability to easily integrate into any building setting and run efficiently. In this retrofit to an old lab facility, an immediate efficiency improvement of 15% over UT Austin’s other fully optimized plants was noted soon after starting up the YZ Chiller. Juan Ontiveros concludes, “It can support anyone in any system of any age. You don’t need the most sophisticated building technology to run the YZ and realize awesome efficiencies!”

Johnson Controls will enhance classroom environments throughout three Tennessee school districts – a combined 22 schools – with projects estimated to be completed this fall. Updates throughout the districts will include infrastructure, energy management and water conservation strategies to address deferred maintenance and improve efficiencies. Energy Savings Performance  The school districts partnering with Johnson Controls include Lake County School District in Tiptonville, Overton County School District in Livingston and Smith County School District in Carthage. The combined $7.7 million in improvements are enabled through Energy Savings Performance Contracts (ESPC) and Tennessee’s Energy Efficient Schools Initiative (EESI). These engagements will help fund project implementations using guaranteed savings to offset the cost of the upgrades. The HVAC unit provides air conditioning in a gym that previously had no temperature regulating systems Lake County School District’s $1.6 million in improvements include LED lighting, Wi-Fi thermostats, window and cooling tower replacements, and an HVAC rooftop unit above the district’s high school gymnasium, completed in May. The HVAC unit provides air conditioning in a gym that previously had no temperature regulating systems. Upon completion, Lake County will have realized more than $1.9 million dollars in energy, operations and maintenance savings, guaranteed over the 16-year agreement. The district also utilized a Tennessee Valley Authority incentive to fund electrical needs. Energy savings “Through our partnerships, we can help Lake County, Overton County and Smith County School Districts capture energy savings that can be reinvested to address deferred maintenance and improve district learning environments.” said, Ryan Ball, Performance Infrastructure Account Executive, Johnson Controls “For years, our gymnasium has been uncomfortable for classes and graduations. The installation of air conditioning is a monumental step towards improving the comfort and productivity of our learning environment for students and faculty,” said Sherry Darnell, Superintendent, Lake County Schools. Partnering with Johnson Controls “Partnering with Johnson Controls not only allowed us to make necessary infrastructure upgrades that will help enhance energy and operational efficiencies, but also to truly understand what implementations were vital for our unique needs and goals.” Overton County School District is implementing $2.9 million to improve its infrastructure, including the installation of HVAC rooftop units, LED lighting, energy management systems and water conservation methods, as well as boiler, pump and WSHP unit replacements. These upgrades will result in $3.5 million in energy, operations and maintenance savings, guaranteed over the 12-year agreement. The district can then reinvest these savings into additional curriculum upgrades for students, including Advanced’s STEM Program, to foster a more creative and productive learning environment. Energy management systems Smith County School District’s energy efficiency upgrades include LED lighting and energy management systems Smith County School District’s energy efficiency upgrades include LED lighting, water conservation methods and energy management systems. The $3.1 million in improvements will also be used to install access controls, in addition to the replacement of its cooling tower, boiler and pumps, WSHP unit and PTAC unit. These updates will help the district provide a more comfortable, efficient and safer learning environment for students and faculty. Upon completion, Smith County School District will have realized over $5.6 million dollars in energy, operations and maintenance savings over the 12-year agreement, allowing for these savings to be reinvested into additional student resources, including Advanced’s STEM Program. STEM Program “Through our partnerships, we can help Lake County, Overton County and Smith County School Districts capture energy savings that can be reinvested to address deferred maintenance and improve district learning environments,” said Ryan Ball, Performance Infrastructure account executive, Johnson Controls. “These improvements will help further the mission of each school and enhance student and faculty comfort and productivity.” Johnson Controls has a long history of working with K-12 schools and educators throughout North America to create environments that inspire and engage both students and faculty. Through Performance Infrastructure projects, we have helped 1,018 schools modernize equipment and building systems, improve infrastructure and energy spend, and address on-going maintenance needs.