Frigidaire Packaged Terminal Heat Pumps (PTHP)  (3)

As our urban centers grow, so does our demand for key resources, such as energy. Currently, cities are accountable for over 60% of resource use and an estimated 70% of global carbon emissions. In the Middle East particularly, countries have experienced unprecedented population growth, increased economic activity and consequently, increases in energy consumption. Integration of sustainable systems Fortunately, industry leaders and governments are placing sustainability at the heart of regional plans for urban development. The integration of sustainable systems is no longer a value-added benefit, but rather a necessary requirement. I believe a vital element for sustainable development in our cities is energy management. Energy is a costly commodity representing an average of 25% of all operating costs in office buildings. This cost, however, can be reduced by using energy management to optimize HVAC systems employed in a building. Effective energy management Energy management involves proactive tracking, systemic management and thoughtful optimization of energy consumption in a building, with the goal of improving energy efficiency. The concept of energy efficiency takes into account a variety of factors; we must consider system design, quality of installation and maintenance, efficiency rates and personal use. If we assume a system is designed with greatest efficiency in mind, its effectiveness is still deeply impacted by installation, maintenance and use. ‘Performance drift’ issues One challenge we face with the efficiency of HVAC systems is ‘performance drift’ One challenge we face with the efficiency of HVAC systems is ‘performance drift’. When first installed, and even in the first few months, HVAC systems operate immaculately. Over time, however, component efficiency and system conditions ‘drift’ away from the originally installed operating curve, meaning that efficiency and performance of the system can degrade incrementally. The deteriorating performance of HVAC systems has consequences, such as unnecessary use of energy, resulting in higher costs and emissions, in addition to reduced comfort for building occupants. Energy efficient HVAC pumps In order to truly have an impact on energy consumption, a holistic approach must be adopted. Only by carefully examining and optimizing each part of the HVAC system, can we then find ways to improve it. In my experience with Armstrong Fluid Technology, in the last decade, the technology for HVAC pumps has been enhanced to provide up to 70% energy efficiency savings through demand-based control and parallel pumping technology. These innovations enable the pumps to operate at optimum levels, consuming as little energy as possible. Innovative smart technology Systems that incorporate innovative smart technology enable more accurate system performance analysis and optimization. Pumps can function as highly accurate flow meters that provide valuable insight for building managers and operators. Data from the intelligent connected pumps can be collected through active performance management software, which enables the HVAC system to learn, predict and optimize to deliver even greater energy efficiency and cost savings through maintained optimized performance. Systems incorporating innovative smart technology enable more accurate system performance analysis Active performance management software Active performance management software enables real time and historical data reporting that directly demonstrates system efficiency and savings. Given the global shift towards sustainable building construction, legislation on energy reporting is inevitable, therefore employing systems with this in-built capability can prove to be extremely beneficial in the future. The software can also help maintain client comfort at all times by enabling predictive maintenance. Systems can provide alerts when they detect faults, allowing for early replacement before a full breakdown. This can be particularly helpful in mission critical applications such as hospitals. Importance of analyzed data in system optimization Without the ability to analyze data, buildings managers and operators cannot properly optimize mechanical systems Evidently, collecting data is essential for many reasons, including preventing, and even reversing, the loss of energy efficiency. Without the ability to analyze data, buildings managers and operators cannot properly optimize mechanical systems, which results in unnecessary energy use, insufficient maintenance practices and any related costs. There may be hesitation in the industry to incorporate more sophisticated systems as they require initial investment, however, the returns from using more efficient mechanical systems are impressive. Executing energy upgrades for HVAC systems Simple payback on energy upgrade projects is usually reached within 3 to 5 years. Furthermore, energy savings continue for the life of the system. Properly executed energy upgrades deliver up to 40% savings on energy consumption related to HVAC operation. Savings on that level for a large facility can be impactful for business operations. Energy efficiency is not ‘visible’ but has the potential to have a transformative effect on climate change, if embraced on a large scale. If we consume energy only as we need to, then we consume less of it. This, in turn, reduces our consumption of fossil fuels and consequently our greenhouse gas emissions. Aside from short-term benefits, such as costs savings and increased operation efficiency, energy management has the ability to help conserve energy for generations to come. Embracing energy saving solutions If we embrace innovative energy saving solutions in the building services industry, then we can begin to make a difference. With the recent launch of plans for sustainable development, such as the Dubai Master Plan 2040, green infrastructure, supporting solutions, will thrive. The global shift towards embracing sustainability has made individuals and organizations call into question their impact on our planet. Embracing sustainability is no longer a preference but a strategic business approach that helps to create long-term value on a social, economic and environmental level. The role of energy efficiency, and the systems that enable it, will inevitably play a key role in creating more sustainable buildings, communities and cities.

It’s no secret that climate change is one of the most pressing concerns facing our planet. We must act collectively on behalf of future generations to enact the change that will help us to avoid a climate catastrophe; and not least the HVAC industry, which has been, and remains, a major contributor to atmospheric greenhouse gases and global warming. In 2015, the UK Government, along with 196 parties entered the legally binding international treaty on climate change, which was adopted at COP 21 in Paris. For the first time in history, all nations committed to undertake the necessary, ambitious steps to combat climate change. Significant environmental milestone Whilst this was clearly a significant environmental milestone, how realistic is the 2030 deadline for zero Global Warming Potential (GWP), from the HVAC industry’s viewpoint? The refrigeration, air conditioning and heat pump (RACHP) sector is presently the largest of the F-gas emitting sectors. The RACHP sector is in fact the UK’s main user as well as emitter of hydrofluorocarbons (HFCs). HFCs are now the main refrigerants used in a broad range of RACHP applications Since the phasing-out of ozone-depleting refrigerants (CFCs and HCFCs), HFCs are now the main refrigerants used in a broad range of RACHP applications, such as commercial refrigeration and air conditioning. It is therefore unsurprising that the spotlight has fallen on the RACHP sector. However, the EU F-Gas Regulation, which was introduced in 2014, is helping to reshape the sector, and lowering carbon emissions. The regulation stipulates: A 79% cut in the GWP weighted quantity of HFCs that can be sold in the EU by 2030. Several bans which restrict the refrigerants that can be used in specific types of new RACHP equipment. Bans on servicing R-404A systems in medium and large sized supermarket and industrial systems as of 2020. New rules on leak prevention and mandatory leak testing. Industrial refrigeration equipment In response to these new rules, many operating in the RACHP sector have introduced lower-GWP equipment. For instance, in the small-medium building air conditioning market, ultra-low GWP (<10) equipment is now an available option. Whilst the sector is committed to lowering its carbon footprint and has made good progress to date, the target of achieving a zero GWP by 2030 seems slightly unrealistic for a number of reasons. Whilst there is continuous improvement to RACHP equipment, an issue is the long life span of many products. For instance, some industrial refrigeration equipment typically has a life span of 30+ years; which means that approximately half of the industrial refrigeration equipment currently in use could remain so until 2030 and beyond. Reducing environmental impact The replacement of existing equipment is constrained by the equipment’s lifecycle The replacement of existing equipment is constrained by the equipment’s lifecycle, therefore, assuming that there is no premature retirement or retrofitting of the existing equipment, then implementing new alternatives could take decades, potentially. In terms of reducing environmental impact, the industry is reliant on the development of new technology, and manufacturers implementing that technology in the design of new equipment, to provide low-GWP alternatives. We are constrained by the rate at which manufacturers can bring these new products to market. The RACHP sector is also complex and contains an array of sub-sectors. The rate of progress in developing products with lower GWP varies considerably by sub-sector. For example, in the refrigeration sector, in commercial and retail applications where condensing units are used, the progress in lowering GWP is proving to be very slow. Variable refrigerant flow However, when it comes to small-sealed units, on the contrary, an impressive range of new low-GWP products have been brought to market. We can see a similar story in the air conditioning sector, where progress on lowering GWP is rather slow when it comes to large variable refrigerant flow (VRF) and large-ducted units; whereas for water chillers, they are making excellent progress. GWP rating may not be the key consideration in choosing a suitable product In the RACHP sector, there isn’t a one-size-fits-all product. Different equipment is required for different applications. For example, where RACHP systems are located in areas with public occupancy (e.g., retailers), public safety becomes a key concern, and would therefore limit our product choice, as well as the refrigerant type which could be used. Therefore, GWP rating may not be the key consideration in choosing a suitable product, it’s about selecting the right equipment for the application. Providing thermodynamic properties When it comes to RACHP equipment, there is a huge variance in temperature levels. In refrigeration, equipment temperature ranges from 0°C to 5°C for chilled food, and -15°C to -40°C for frozen food. In air-conditioning, the temperature typically ranges between 10°C to 20°Cii. These significant variations in temperature levels require a range of refrigerants to be available, to provide the thermodynamic properties to suit the specific application. It is worth noting here that not all have low GWP ratings. Despite stating that some of the targets are unrealistic, I do however believe that as an industry, we can collectively work together to make a difference to our planet. Maximum gas recovery Here are a few practical ways we can help to lower our carbon emissions: Use low GWP alternative refrigerants in new equipment – This is the key to success in the long term. As I explained previously, the long lifecycle of some of the equipment means that it will potentially be many years before the existing repository of HFCs is completely obsolete. However, it is a realistic goal that by 2050, the current generation of high-GWP HFCs could be replaced with low-GWP alternatives. Recover F-Gases from equipment - Old equipment reaching end-of-life contains HFCs. It is illegal to vent these HFCs into the atmosphere. The F-Gas Regulation has a mandatory requirement for the old HFC to be recovered. This refrigerant should be reprocessed, recycled and reused. Although this does not directly reduce F-Gas emissions in the short term, it does encourage maximum gas recovery. Leakage-Detection systems Reduce the usage of HFCs in existing equipment - Interestingly, a large proportion of total HFC consumption is actually to top-up leaks from existing equipment. If we could make advances in the area of leak-prevention, through further development of leakage-detection systems, this would reduce the volumes of HFC inadvertently entering the atmosphere. I’d also advise businesses to regularly undertake leak testing and to keep records. The world needs the entire HVAC industry to lead and drive the change required to reduce our carbon footprint. We must champion the solutions for the climate change crisis. Equally, businesses have a responsibility to ensure they remain F-Gas compliant and that their air conditioning and refrigeration systems continue to work at peak efficiency.

In the coming decades, the government plans to phase out gas and oil boilers and replace them with renewable heating systems. To make this possible, to give us a shot of achieving net-zero carbon emissions by 2050, more people need to train as renewable heating installers. But when you were a teenager, if old people like Boris Johnson or George Eustice had told you that you ‘should’ choose a certain career, would you have listened? No, me neither. Yes, there will be plenty of environmentally motivated young people looking for a career that will make a difference in the world, but we cannot expect those people to carry the weight of the task ahead. Addressing the need for renewable installers The government has pledged to install 600,000 heat pumps per year in UK homes by 2028. It is an ambitious target, not least because there are currently not enough certified heat pump installers to meet expected demand. For example, at Boiler Guide, we are receiving 250% more heat pump enquiries than we were just 12 months ago. The Environment Audit Committee has warned that the UK is unlikely to achieve its net-zero carbon targets for all homes by 2050, without significant recruitment incentives for heat pump installers. Becoming an asset to the government’s ‘Green Revolution’ One route to success is for existing boiler engineers to up their skill in renewable technology One route to success is for existing boiler engineers to up their skill in renewable technology. This will certainly have a big part to play, as these people already have many transferable skills that will make them an asset to the government’s ‘Green Revolution’. However, given that more than half of Gas Safe-registered engineers are due to retire in the next decade, this is not a long term solution to growing the renewable sector. Younger generation to define the future of heating The second and more effective option would be for more young people and school leavers to choose a career in renewable heating. Of course, we cannot expect young people to make their career choice based on the fact that the government has targets. To strengthen the renewable industry’s frontlines, we need to speak directly to school leavers and young people, and to explain why a career in renewable heating could be a great choice for them on a personal level, as well as the planet. Here are some of the most compelling reasons why a young person should consider a career as a renewable installer. Renewable heating is the future From 2025, gas boilers will not be installed in newly built homes, and low carbon heating systems will need to be incorporated into properties as standard. Every existing home in the UK needs a heating system, and as fossil fuel boilers are phased out over the next 30 years, the renewable sector (including air source and ground source heat pumps, solar thermal, biomass boilers) will continue to grow.  Heating installers are essential workers Young people should consider that during COVID-19, heating engineers were deemed, essential workers A major consideration for anyone choosing a career is whether the industry that they have chosen will provide them with long-term security, and the renewable heating industry certainly has that in its favor. To illustrate this point, young people should consider that during the COVID-19 pandemic, heating engineers were deemed, essential workers. Even when the country’s social and economic activities were halted, heating engineers were still needed. Renewable technologies are diverse While gas and oil boilers have dominated the heating landscape for many years, this is changing. In the next 30 years, it is likely that different properties will need different renewable heating systems, including plenty of hybrid systems, so the career promises plenty of variety and opportunities to diversify. In the future, a heating installer may be able to work not just with a boiler, but also with heat pumps, biomass, and solar. The more renewable technologies a person can install, repair, and service, the more varied, interesting, and lucrative their career will be. Renewable heating installers are in demand Because renewable heating installers, particularly air source heat pump installers, are in great demand at the moment, it is a great time for young ambitious people to be entering the industry. By getting started now as the industry is still blooming, they have the chance to corner the market in their area, and establish a positive reputation. Self-employment opportunity for renewable heating installers Renewable heating installers have the opportunity to start their own business and may work alone or with others Renewable heating installers have the opportunity to start their own business and may work alone or with others. This means that they will be in charge of their own hours, the projects they take on, and to an extent, how much money they earn. With the right business skills alongside technical knowledge, self-employment can be rewarding in multiple ways. However, for the many people that feel more secure when they are employed by a company and working with others, the industry could be ideal for them too. Renewable heating installers can be employed and they often work alongside other tradespeople, and as part of larger building projects. Many people cannot imagine a career that involves sitting in an office all day, every day. For people who enjoy being physically active, getting outside, meeting new people, and solving different problems every day, becoming a renewable heating installer is ideal. How to become a renewable heating installer There are several stages to becoming a renewable heating installer, and the training required obviously varies depending on the technology, the training provider, and the individual’s skill/experience. For example, a school leaver might begin by achieving NVQ Level 2 in Plumbing and Heating (or equivalent), as well as Water Regulations/Byelaws, Energy Efficiency Certificates, and G3 Qualifications. The NVQ typically takes around 1 year to complete alongside a practical apprenticeship. Renewable heating educational courses With that foundation, they can then move on to study Low Temperature Heating and Hot Water Systems (typically a 2-day course), a Heat Pump Foundation Course (2-day course), followed by a 1-day course specific to the type of heat pump they wish to install, i.e., air or ground source. Finally, renewable heating installers need to become accredited by the Micro-generation Certification Scheme (MCS), or an equivalent competency scheme.

Summer season is solely throughout the nook, which suggests it will be prolonged sooner than the first waves of sweltering heat. For those looking for a quick and cheap choice to cool down their personal residence, or explicit areas of personal residence similar to the storage or office, a window AC is an environment friendly option. Window ACs are no longer the ear-grinding energy hogs that they were in the past. Many of the window ACs in the market currently are easy to place in the house, run quietly, and use up much less electrical vitality, as compared with a number of their older brethren. For those on the lookout for a high-efficiency model, similar to the LG LW801-series or the Haier ESAQ406P, listed below collectively is a list of the very best window AC gadgets for 2020. Friedrich Chill 6,000 BTU Window Air Conditioner In order to ensure optimal energy efficiency, the Friedrich Chill 6,000 BTU model is Vitality Star rated For those with an enormous bedroom, the Friedrich Chill 6,000 BTU window air conditioner from Friedrich Air Conditioning can take care of the entire room’s cooling needs. Gentle sleepers will have the benefit of how quietly this air conditioner operates, with minimal noise and disturbance. The unit, moreover, oscillates left and right, thereby ensuring complete coverage of the room. In order to ensure optimal energy efficiency, the Friedrich Chill 6,000 BTU model is Vitality Star rated, so as to ensure users are saved from the sky-high energy costs. The unit can be placed in a window, or in a wall, and the power wire can run to the left or right, counting on the place that the outlet is located in the room, for added flexibility. LG LW8016ER 8,000 BTU Window Air Conditioner This energy efficient LG LW8016ER model has a 12.1 effectivity ratio, in accordance with the Vitality Star rating for energy efficiency, a rating that guarantees energy savings when switching from an older model. This window unit consists of three cooling modes and three fan speed modes. RCA 5,000 BTU, 115V Window Air Conditioner The RCA 5,000 BTU, 115V window air conditioner hits a sweet spot by way of price and usefulness. It’s rated for a 150 sq. feet room space, and offers 360-degree airflow administration for effective cooling of every nook and corner in the room. The filter is easy to clean, which makes the system easy to handle and the bundle deal encompasses a window mounting gear. This cost-effective window AC offers three cooling speed modes and three fan speed modes. Haier ESAQ406P Serenity 6,050 BTU This Haier AC features a twin motor and cross-flow design for enhanced air distribution The Haier ESAQ406P Serenity 6,050 BTU window AC is one of the costlier models in this list. This is largely because it offers additional modes than most gadgets, including four different cool settings, including cooling mode, fan mode, energy-savings mode and dehumidifying mode. This Haier AC features a twin motor and cross-flow design for enhanced air distribution and a timer for effective scheduling throughout the day. It has also been rated as one of the quietest AC gadgets available in the market. LG Vitality Star Window AC 8,000 BTU with Wi-Fi The LG Vitality Star Window Air Conditioner 8,000 BTU with Wi-Fi connectivity is able to effectively cool large rooms, up to 340 sq. feet in space, making it the preferable option to cool down enormous rooms. It has a 12.1 Vitality Effectivity Ratio, and also features Wi-Fi connectivity option. It is also offers smart access via the LG ThinQ app (obtainable for iOs or Android) and voice-control option with Amazon Alexa or Google Assistant system. There are three fan speeds and various different modes to pick from, along with an auto-cool setting and four-way air deflection to direct the air to any corner of the room. This LG window AC also offers additional user-friendly features including digital contact controls and automatic restart option. Also, the window AC features a washable and reusable filter, which ensures money is not wasted on frequent filter replacements. Frigidaire 6,000 BTU Window-Mounted Room Air Conditioner Frigidaire is pulling out all the stops with its 6,000 BTU Window-Mounted Room Air Conditioner. This window AC offers user-friendly access with the Frigidaire Wise app on a smartphone. Users can flip the power on/off, alter the temperature, change between different cooling modes, and alter fan tempo and speed, all on the comfort of their couch or mattress. For those who forget to clean the air filter regularly, the app will routinely send alerts to the user’s smartphone, whenever it is time to clean the filter. Users looking to bring down their energy bills, the Frigidaire window room AC is Vitality Star licensed and the app even lets them create a 24 hour on/off schedule for the air conditioner.

The introduction of this product series completes the final phase of an overall redesign of Gibson®, NuTone® and Frigidaire® branded 1.5- to 5-ton, single-phase air conditioning units and heat pumps. The air conditioner is available in 13-, 14-, and 16-SEER models, and the heat pump is available in 14- and 16-SEER models. Standard features include Copeland scroll compressors and a liquid line filter-drier for field installation in an accessible position to facilitate easy periodic change-outs. Coil-protecting wire guard Featured aesthetic and functional additions include a coil-protecting wire guard that adds cabinet structural integrity and holds a plastic mesh in place to safeguard against hail and accidental contact damage. The wire guard is secured by the top and three corner screws to promote quiet operation and easy disassembly for coil cleaning access. The series features a barcode on the interior control panel to scan and access all the particular unit’s Nortek website documents.

Nortek needed all hands-on deck at the AHR Expo as the company showcased numerous new equipment lines in multiple categories, including split system air conditioners, variable refrigerant flow (VRF) units, data center management modules, heat pumps, gas/electric packaged systems, and more. “Like all manufacturers, we’re focused on keeping up with government regulations across all our product lines,” said Philip Windham, President, Residential HVAC, Nortek Global. “Additionally, we’re aiming to deliver comfort to our customers as efficiently as possible across a wide range of solutions.” packaged rooftop units Mammoth RTUs Our customers can easily replace outdated units with a rugged and innovative design available in our Mammoth brand" Nortek Global HVAC introduced a new line of next-generation Mammoth Light Commercial packaged rooftop units (RTUs) at the expo. Model R7TQ is available in 6-, 7.5-, and 10-ton sizes. These RTUs fit directly on common pre-existing curbs without the need for curb adapters, eliminating delays and saving installation time. Even gas and electric connections are in the same location as many older units, so no service reroutes are required. “We created our rooftop products for contractors, building owners, and facility managers who need low-cost, drop-in direct replacements,” said Dave Garvin, Product Manager at Nortek Global HVAC. “Now, our customers can easily replace outdated units with a rugged and innovative design available in our Mammoth brand.” minimum efficiency standards The unit’s components are factory-installed using Nortek Global HVAC Demand Flow Technology (DFT). Foam panel construction and hinged panel doors are standard. The 1-inch foam panel wall construction ensures IAQ is fiberglass-free, which inhibits mold growth. Panel walls are easy to clean and provide a super-high R-value. High-quality hinges eliminate screws on the roof and keep the access doors in place, even in high-wind conditions. “We believe the construction quality is what makes these rooftop units a real game changer,” continued Garvin. “The many improvements we’ve made for this product line stand to make a major impact for our customers.” At 12.7 IEER, model R7TQ met federal minimum efficiency standards well in advance of the 2018 implementation date. packaged heat pump Q7RF Nortek also showcased its all-new 16-SEER, 12-EER, 8.2-HSPF, energy-efficient Q7RF packaged heat pump. This two-stage heat pump includes all-aluminum Micro-Channel evaporator and condenser coils, which are lightweight, small in size, durable, and reliable in harsh environments. The model is Energy Star listed and qualifies for federal, state, and utility rebates. The Q7RF single-packaged heat pump features a small footprint for ease of installation. Micro-Channel coils contribute to the smaller size of the unit and offer exceptional heat transfer for high efficiency Micro-Channel coils contribute to the smaller size of the unit and offer exceptional heat transfer for high efficiency. Each unit features Nortek Global HVAC’s patented defrost process. Traditional fin-and-tube heat pumps have coil headers on the sides and defrost horizontally. However, in a Micro-Channel heat pump, the coil is rotated 90 degrees so that the headers are at the top and bottom, not the sides. If the defrost started from the top-down, the bottom of the coil would never defrost completely. product management team The Nortek Global HVAC patented process adds a hot gas bypass so that hot gas goes from the top down as well as the bottom up, ensuring the entire coil gets defrosted. The F series is available in the Broan and Frigidaire brands. The PSA/PSH series, is available in the Maytag brand. “Our engineering and product management team worked very hard to pull this together and give customers something new, and they’re really happy about that,” said Windham. “From a design perspective, we thought long and hard about the serviceability of this unit. We spent a lot of time to ensure not only its reliability but how it’s installed and maintained. For example, each panel has only a pair of screws to get to the coils." modular heat pumps VRF Multi-Zone Systems Nortek Global HVAC also exhibited a line of commercial VRF multi-zone systems. The complete line consists of V5 mini VRF heat pumps, V5 modular heat pumps, and V5 heat recovery systems. The V5 VRF systems feature DC inverter-driven compressors for precise temperature control These VRF systems offer contractors and consumers several benefits, including a user-friendly selection software; longer piping lengths for more flexibility on each job; simple, easy-to-install communication wiring; minus 22°F (minus 30°C) heating performance; indoor units that automatically address conditions, eliminating the need to set dipswitches manually; simple debugging/commissioning software; and more. precise temperature control The V5 VRF systems feature DC inverter-driven compressors for precise temperature control. Up to 3,280 feet (1,000 meters) of total piping length and up to 36 indoor connections make them easy to install, network, and maintain. Standard gold and blue fin coating provides increased performance and greater corrosion resistance. The V5 mini VRF systems are designed for light commercial or residential applications. Their compact design and inner profile make them adaptable to tight spaces, and they feature up to 984 feet (300 meters) of total pipe length. Both feature an energy-efficient, ultra-quiet DC inverter compressor and powerful heating capacity in low ambient temperature. These 208/230V condensers are available in 3-, 4-, or 5-ton sizes and will accommodate up to seven, eight, or nine zones. Indoor units are available in wall-mounted, ceiling cassette, console, universal floor/ceiling, and ducted-type units. Commercial VRF systems Nortek exhibited several other products, including the R7TQ gas/electric packaged system “Commercial VRF systems are growing in popularity due to their efficiency and flexibility,” said Keith Clark VRF National Sales Manager, Nortek Global HVAC. “We’re proud to offer a high-value VRF product at a reasonable price, so our contractor customers can be competitive on jobs.” The VRF unit will be marketed under the Gibson brand. “Our VRF operates at minus 22° at 80 percent capacity, which differentiates us from some of the other brands here on the show floor,” Windham said. “We had a customer from Wisconsin recently call and say, ‘We forgot to install the auxiliary heat, but we wanted you to know the building is at 68°. We forgot we had to do it because the building is working so well without it.’ We enjoy hearing success stories like that.” Nortek Solutions Nortek exhibited several other products, including the R7TQ gas/electric packaged system, which was a bronze winner in the HVAC light commercial category of The NEWS’ 14th annual Dealer Design Awards; the 96 percent AFUE Model FG7TE/FG7TN gas furnace, which comes with a factory-installed electronically commutated motor (ECM) and programmable control board; and more.