{"id":43687,"date":"2017-09-13T15:43:23","date_gmt":"2017-09-13T19:43:23","guid":{"rendered":"https:\/\/www.constructionspecifier.com\/?p=43687"},"modified":"2017-09-13T15:43:23","modified_gmt":"2017-09-13T19:43:23","slug":"making-the-upgrade-with-hvac-systems","status":"publish","type":"post","link":"https:\/\/www.constructionspecifier.com\/making-the-upgrade-with-hvac-systems\/","title":{"rendered":"Making the (up)grade with HVAC systems"},"content":{"rendered":"<figure id=\"attachment_43813\" aria-describedby=\"caption-attachment-43813\" style=\"width: 384px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2017\/09\/vlcsnap-2016-10-07-11h55m23s458-copy.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-43813 \" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2017\/09\/vlcsnap-2016-10-07-11h55m23s458-copy.jpg\" alt=\"\" width=\"384\" height=\"216\" srcset=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2017\/09\/vlcsnap-2016-10-07-11h55m23s458-copy.jpg 800w, https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2017\/09\/vlcsnap-2016-10-07-11h55m23s458-copy-300x169.jpg 300w, https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2017\/09\/vlcsnap-2016-10-07-11h55m23s458-copy-768x432.jpg 768w, https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2017\/09\/vlcsnap-2016-10-07-11h55m23s458-copy-500x281.jpg 500w\" sizes=\"auto, (max-width: 384px) 100vw, 384px\" \/><\/a><figcaption id=\"caption-attachment-43813\" class=\"wp-caption-text\"><span style=\"font-size: 10pt;\"><em><span style=\"font-family: arial,helvetica,sans-serif;\">All <strong>\u00a9<\/strong> photos Modine Manufacturing. All photos courtesy Regal<\/span><\/em><\/span><\/figcaption><\/figure>\n<p><strong>by Paul Selking<br \/>\n<\/strong>As K\u221212 school budgets dwindle and energy costs rise, fewer resources are dedicated to school operations and maintenance. As a result, the <a href=\"http:\/\/www.centerforgreenschools.org\/sites\/default\/files\/resource-files\/Green%2BSchools%2BInvestment%2BGuide_inal%2BWeb%2BCopy_29April2013.pdf\">health and performance<\/a> of these buildings (and the students and staff inside) suffer. With the cost to maintain and improve educational facilities increasing, schools need to invest in retrofits and ongoing maintenance to assert control over their utility costs.<\/p>\n<p>According to the <a href=\"http:\/\/www.epa.gov\/sites\/production\/files\/2015-08\/documents\/k-12_guide.pdf\">U.S. Environmental Protection Agency<\/a> (EPA), the nation\u2019s 17,450 K\u221212 school districts spend more than $8 billion annually on energy\u2014more than is spent on textbooks and computers combined. An estimated $2 billion of that total could be saved by improving energy efficiency in schools, equivalent to the cost of nearly 40 million new textbooks. Complicating these calculations is the aging of America\u2019s public schools, which are, on average, 44 years old, according to the National Center for Education Statistics (NCES). The \u2018functional age\u2019 of public schools, when renovations are factored in, is 19 years.<\/p>\n<p>The good news is energy is one of the few expenses that can be decreased without negatively affecting classroom instruction. Thousands of school boards have figured out ways to invest in energy efficiency and renewable energy improvements, demonstrating smart energy choices can have lasting benefits for their students, their communities, and the environment. Along with achieving significant energy cost savings, investing in energy efficiency can produce environmental, economic, and educational benefits.<\/p>\n<p><strong>Improving schools\u2019 energy efficiency and outcomes<br \/>\n<\/strong>EPA has found increasing energy efficiency in K\u221212 school buildings can have the indirect benefit of bettering acoustic comfort, enabling effective communication by minimizing audible disturbance from outside and inside, and improving student performance. Additionally, the money saved from lower energy bills can help schools pay for building upgrades that enhance the health and quality of students\u2019 learning environments\u2014examples include skylights for daylighting, retrofitted shading devices, energy-efficient windows, and better insulation. School districts throughout the country are realizing <a href=\"http:\/\/www.ocde.us\/Facilities\/Documents\/HighPerformanceDesignforK12Schools.pdf\">energy improvements<\/a> have the potential to save the nation\u2019s schools $1.5 billion each year and, at the same time, create better learning environments.<\/p>\n<figure id=\"attachment_43815\" aria-describedby=\"caption-attachment-43815\" style=\"width: 361px\" class=\"wp-caption alignleft\"><a href=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2017\/09\/vlcsnap-2016-10-07-11h55m54s307-copy.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-43815 \" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2017\/09\/vlcsnap-2016-10-07-11h55m54s307-copy.jpg\" alt=\"\" width=\"361\" height=\"203\" srcset=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2017\/09\/vlcsnap-2016-10-07-11h55m54s307-copy.jpg 800w, https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2017\/09\/vlcsnap-2016-10-07-11h55m54s307-copy-300x169.jpg 300w, https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2017\/09\/vlcsnap-2016-10-07-11h55m54s307-copy-768x432.jpg 768w, https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2017\/09\/vlcsnap-2016-10-07-11h55m54s307-copy-500x281.jpg 500w\" sizes=\"auto, (max-width: 361px) 100vw, 361px\" \/><\/a><figcaption id=\"caption-attachment-43815\" class=\"wp-caption-text\"><span style=\"font-family: arial,helvetica,sans-serif; font-size: 10pt;\">For schools, the design and selection of the right HVAC system should combine a choice of engineered products efficiently providing conditioned air to the space at optimal energy while adding architectural features complementing the interior design.<\/span><\/figcaption><\/figure>\n<p>The physical condition of school facilities affects the performance, comfort, and stress levels of students and teachers alike. A wide body of research illuminates the relationships between the physical and human performance of schools, including the links between:<\/p>\n<ul>\n<li>indoor air quality (IAQ) and rates of absenteeism and asthma;<\/li>\n<li>lighting quality and student concentration;<\/li>\n<li>classroom acoustics and student attention;<\/li>\n<li>access to some form of physical activity and healthy cognitive development;<\/li>\n<li>design and condition of facilities and academic achievement; and<\/li>\n<li>quality of school buildings and long-term staff and teacher retention.<\/li>\n<\/ul>\n<p>Schools achieving higher building energy ratings can have a positive impact on <a href=\"http:\/\/www.pge.com\/en\/mybusiness\/save\/smbblog\/article\/improve-student-and-building-scores-with-energy-efficient-heating-and-cooling-equipment.page\">student test scores<\/a> as well. By installing more energy-efficient equipment, such as an upgraded HVAC system, school administrators are enhancing student comfort, health, and attention span, which can ultimately give education outcomes a lift.<\/p>\n<p>The U.S. Government Accountability Office (GAO) estimates more than 15,000 schools nationwide report suffering from poor indoor air quality. Further, as mentioned, EPA says these schools experience increased absenteeism, decreased student concentration and productivity, and lower student test scores. Poor IAQ is also a known trigger of asthma\u2014a condition that accounts for 14 million missed school days each year, according to the Asthma and Allergy Foundation of America (AAFA). (For more, see Rachel Belew\u2019s article, \u201cA Breath of Fresh Air,\u201d in the September\/October 2011 issue of <em>Principal<\/em>.)<\/p>\n<p>Schools are also faced with the issue of IAQ standards that require fresh air to be introduced into classrooms at a substantial rate. The national consensus standard for outside air ventilation is American Society of Heating, Refrigerating, and Air-conditioning Engineers (ASHRAE) 62.1-2010, <em>Ventilation for Acceptable Indoor Air Quality<\/em>, and its published Addenda. This standard is often incorporated into state and local building codes and specifies the amounts of outside air that must be provided by natural or mechanical ventilation systems to various areas of the school, including classrooms, gymnasiums, kitchens, and other special use areas. High-quality HVAC systems must meet the stringent requirements of modern education environments.<!--nextpage--><\/p>\n<figure id=\"attachment_43817\" aria-describedby=\"caption-attachment-43817\" style=\"width: 374px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2017\/09\/vlcsnap-2017-03-02-13h23m16s170-copy.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-43817 \" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2017\/09\/vlcsnap-2017-03-02-13h23m16s170-copy.jpg\" alt=\"\" width=\"374\" height=\"210\" srcset=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2017\/09\/vlcsnap-2017-03-02-13h23m16s170-copy.jpg 800w, https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2017\/09\/vlcsnap-2017-03-02-13h23m16s170-copy-300x169.jpg 300w, https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2017\/09\/vlcsnap-2017-03-02-13h23m16s170-copy-768x432.jpg 768w, https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2017\/09\/vlcsnap-2017-03-02-13h23m16s170-copy-500x281.jpg 500w\" sizes=\"auto, (max-width: 374px) 100vw, 374px\" \/><\/a><figcaption id=\"caption-attachment-43817\" class=\"wp-caption-text\"><span style=\"font-family: arial,helvetica,sans-serif; font-size: 10pt;\">Located in Stevensville, Michigan, Lakeshore Public Schools consists of three K\u22125 elementary buildings, one middle school, and one high school\u2014all which have recently upgraded the HVAC system. Heat transfer expert Jason Gillis (left) and Nick White, director of operations for Lakeshore Public Schools discuss a newly installed classroom unit. The vertical systems allow for ductwork and diffusers to be connected easily so sound from the fan and the moving air is distributed throughout the room, which more or less eliminates the sound altogether.<\/span><\/figcaption><\/figure>\n<p><strong>Upgrading schools\u2019 HVAC systems<br \/>\n<\/strong>According to <a href=\"http:\/\/nces.ed.gov\/pubs2000\/2000032.pdf\">GAO<\/a>, \u201cheating, ventilation, and air-conditioning systems were the most frequently reported building feature in need of [extensive] repair.\u201d Since HVAC can account for as much as half of a school\u2019s annual energy use, by retrofitting the equipment, schools can significantly reduce energy costs\u2014sometimes by as much as 45 percent.<\/p>\n<p>Research demonstrates the health and performance of students and staff corresponds directly with the performance of the HVAC system. (This comes from Lawrence Berkeley National Laboratory\u2019s [LBNL\u2019s] Indoor Air Quality Scientific Findings Research Bank.) A high-performing system not only limits the presence of airborne toxins and mold-causing dampness, but may also help maintain classrooms at temperatures optimal for comfort and focused learning. Given a typical HVAC system can consume upward of two-thirds of the energy used in a school, there are also opportunities to substantially reduce energy costs by improving the efficiency of the system\u2019s components. (For more, see EPA\u2019s <em>Indoor Air Quality Design Tools for Schools: HVAC Systems<\/em>. Visit <a href=\"http:\/\/www.epa.gov\/iaq-schools\/indoor-air-quality-design-tools-schools\">www.epa.gov\/iaq-schools\/indoor-air-quality-design-tools-schools<\/a>.)<\/p>\n<p>Facility managers typically identify budgetary constraints, cost-cutting, and the up-front expense of building improvements as the greatest financial obstacles. By considering different finance mechanisms barriers, such as improvement financing (including up-front costs, cash flow considerations, and budgetary and regulatory constraints), school boards are able to implement the infrastructure upgrades.<\/p>\n<p>For example, many schools are interested in using performance contracting to implement needed upgrades for their facilities and achieve energy savings. Others can take advantage of their local utility company\u2019s standard incentives for installing new, energy-efficient equipment. Cash incentives may also be available to schools planning unique equipment installations and system and industrial process improvements.<\/p>\n<p><strong>Selecting the right HVAC system<br \/>\n<\/strong>The design and selection of the right HVAC system should combine a choice of engineered products efficiently providing conditioned air to the space at optimal energy while adding architectural features that complement the interior design. The<a href=\"http:\/\/seedengr.com\/Cent%20Vs%20Decent%20AC%20Systems.pdf\"> internal environment<\/a> of the buildings must be a major focus point in the HVAC system selection. Efficiency, performance, cost, and energy use are considerations when choosing components. In K\u221212 classrooms, it is extremely important to minimize equipment and air distribution noise. It is critical to select low-decibel equipment and define its location relative to the conditioned space. To this end, many school district facility managers have come to realize the benefits of a single-packaged vertical unit that blends seamlessly into classrooms, providing students and teachers a healthier and quieter learning environment.<\/p>\n<p>To improve on these systems, HVAC manufacturers are integrating an all-in-one blower motor system into their units. This combines a high-efficiency blower housing, axial flux, brushless alternating-current (BLAC) motor, and variable-speed electronically commutated motor (ECM) technology into a single assembly that delivers higher efficiencies, improved airflow, and lower maintenance costs. Additionally, this system puts out an average of 2 to 3 dB less than comparable systems, making it ideal for classrooms.<\/p>\n<p>Proper ventilation with outdoor air is a key component for good IAQ in schools and classrooms. While there are many different HVAC system designs and operational approaches to achieving proper system functionality, every building is unique in its design and operation. Treatment can differ depending on:<\/p>\n<ul>\n<li>the geographical location of the building;<\/li>\n<li>ambient conditions;<\/li>\n<li>indoor requirements;<\/li>\n<li>building materials;<\/li>\n<li>dimensional parameters;<\/li>\n<li>aesthetic requirements;<\/li>\n<li>noise; and<\/li>\n<li>environment issues.<\/li>\n<\/ul>\n<p>Classrooms generally have high ventilation requirements (<em>i.e.<\/em> potentially three times that of an office), but only when occupied. Dedicated classrooms, such as science and computer areas, require extra cooling or ventilation. Administrative areas require lower heating and cooling, but are occupied over longer hours. ASHRAE 62.1-1999 recommends each person in a classroom receive 15 cfm of fresh air, meaning a classroom with 30 people requires a ventilation rate of about 450 cfm.<\/p>\n<p>Many different types of equipment and configurations are available to meet the requirements for schools. These configurations fall into two basic design categories: zoned comfort systems, which condition individual zones or one central system that conditions an entire school.<\/p>\n<p>No matter what HVAC system is chosen for a school, the system will require computer controls (<em>i.e.<\/em> dedicated digital systems [DDS]) to monitor and adjust heating and ventilation rates. Systems can be designed for remote monitoring from the administrative office, or for individual classroom temperature control. Sophisticated systems are interoperable with a district\u2019s entire building automation system (BAS). The key benefit of controls is their ability to reduce operating costs.<!--nextpage--><\/p>\n<p><em>Zoned comfort systems<\/em><strong><br \/>\n<\/strong>Zoned comfort systems\u2014such as unit ventilators, water source heat pumps, and fan coils\u2014provide heating, cooling, and conditioning (<em>e.g.<\/em> humidity control by unit ventilators) to individual classrooms or zones. The advantage of a zoned comfort system is one unit can provide cooling to one space while another unit is providing heating to a different space. The units can be controlled so their space is not cooled or heated when not occupied\u2014this helps reduce operating costs.<\/p>\n<p><em>Central systems<br \/>\n<\/em>Unlike zoned comfort systems, which control individual zones, a central system controls several zones (<em>e.g.<\/em> a block of classrooms, the administrative area, or the gymnasium). These systems condition air in a remote location, such as a mechanical room or on a roof, and distribute it through ductwork to the occupied spaces. Central systems can include air-handling units (AHUs) and chiller plants, rooftop systems, and vertical self-contained systems.<\/p>\n<p><strong>HVAC in action: Lakeshore Public School District<br \/>\n<\/strong>Located in Stevensville, along Lake Michigan in the southwestern region of the state, the Lakeshore Public School District consists of three K\u22125 elementary buildings, one middle school, and one high school. Nick White, director of operations for Lakeshore public schools, has orchestrated many changes at the five facilities, including broad HVAC upgrades improving both student and teacher comfort, as well as energy efficiency.<\/p>\n<p>In 2013, White and the Lakeshore school board looked at options to enhance student achievement. It had been about 20 years since any of the schools had new heating equipment installed, and none of them had any form of air-conditioning.<\/p>\n<p>\u201cWe would get daily complaints from teachers about the inconsistency of room heating. Students seated by old, under-the-window unit ventilators were either sweating or shivering,\u201d said White. \u201cIn the mornings, the ventilators would be blasting heat and later, as the thermostat was satisfied, outside air was brought in to improve indoor air quality and student health.\u201d<\/p>\n<p>However, the fresh air entering the rooms became a textbook lesson in thermal shock. Cold air immediately conditioned students and teachers\u2014the discomfort was so routine they knew to have their winter jackets nearby.<\/p>\n<p>\u201cAnother issue that we would get regular complaints about was the noise of the units,\u201d said White. \u201cTeachers constantly had to yell to be heard over the incessant drone of the HVAC equipment.\u201d<\/p>\n<p>\u201cRemember Charlie Brown\u2019s teacher [with a voice like a muffled lullaby]? That\u2019s how our teachers sounded to students before we got a new heating and cooling system; they couldn\u2019t stay awake,\u201d he said. \u201cOur HVAC woes became a huge distraction.\u201d<\/p>\n<p>White contacted Scott Morgenstern, senior mechanical engineer for Kingscott Associates, an architectural and engineering firm based in Kalamazoo.<\/p>\n<p>\u201cNick informed me the school district was looking to do a significant amount of renovating and remodeling in all of the schools,\u201d explained Morgenstern. \u201cThe bulk of work to be funded was slated to improve classroom HVAC systems\u2014replacing old unit ventilators with new, quiet, energy-efficient ones.\u201d<\/p>\n<p>\u201cThe old systems were not only noisy, but they weren\u2019t providing sufficient air distribution,\u201d he added. \u201cThey were basically oversized fan coil units that sat under classroom windows with the sole purpose of making life miserable for students and teachers alike.\u201d<\/p>\n<p>Overheating and underheating were sure to affect classroom conditions daily, and the discomfort was palpable. Outdoor conditions played an enormous role; another key variable was the location of a student\u2019s chair. Teachers could move their desks, or walk about, but students were mostly unable to make improvements.<\/p>\n<p>White and Morgenstern took a tour of nearby locations with unit ventilators already installed and running, as it always helps to demonstrate equipment operation. After further research into equipment capable of solving problems at the school district, they chose a system engineered specifically for classrooms.<\/p>\n<p>\u201cOne of the first things that stuck out to me at the demo was the noise\u2014or better, the lack of it,\u201d said White. \u201cWe learned about the equipment\u2019s impressive sound lab performance, but it was most impressive to see and hear the equipment during our tour. We were certain that we\u2019d found the right technology for our schools.\u201d<!--nextpage--><\/p>\n<figure id=\"attachment_43819\" aria-describedby=\"caption-attachment-43819\" style=\"width: 296px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2017\/09\/DEC_Star_sm-copy-e1505331675291.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-43819 \" src=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2017\/09\/DEC_Star_sm-copy-e1505331675291.jpg\" alt=\"\" width=\"296\" height=\"275\" srcset=\"https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2017\/09\/DEC_Star_sm-copy-e1505331675291.jpg 703w, https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2017\/09\/DEC_Star_sm-copy-e1505331675291-300x279.jpg 300w, https:\/\/www.constructionspecifier.com\/wp-content\/uploads\/2017\/09\/DEC_Star_sm-copy-e1505331675291-500x465.jpg 500w\" sizes=\"auto, (max-width: 296px) 100vw, 296px\" \/><\/a><figcaption id=\"caption-attachment-43819\" class=\"wp-caption-text\"><span style=\"font-family: arial,helvetica,sans-serif; font-size: 10pt;\">This combination motor\/blower system for HVAC equipment features an axial motor inside a heavy-duty blower wheel, providing uniform airflow. This serves to improve heat transfer, reduce hot spots, and reduce pressure drop across the appliance.<\/span><\/figcaption><\/figure>\n<p><strong>Replacements for all classrooms<br \/>\n<\/strong>For the five schools, 132 units were specified, and two under-the-window units were chosen for the high school football locker room. The classroom units have super-efficient ECM and microchannel coils. Advanced blower and compressor technologies contribute to the decreased sound and power output.<\/p>\n<p>They also have a proprietary counter-flow (CF) coil, offering substantial improvements over existing parallel-flow (PF) technology prevalent in the HVAC market today. The all-aluminum coils provide condensing and evaporation. Inside the CF coil, refrigerant makes two passes\u2014once up and then back down\u2014to create a uniformly conditioned air stream.<\/p>\n<p>The vertical systems allow for ductwork and diffusers to be connected easily so sound from the fan and the moving air is distributed throughout the room, which more or less eliminates the sound altogether.<\/p>\n<p>\u201cThese types of units have been our preferred solution since they came on the market. Being able to provide ducted supply systems to the classrooms allows for better temperature control throughout an entire room,\u201d said Morgenstern.<\/p>\n<p>The two-stage cooling keeps the units operating in the most efficient range possible at all times.<\/p>\n<p><strong>Timing is everything<br \/>\n<\/strong>There is a very small window of opportunity to get these types of school jobs done, since the work\u2014demolition, installation, and startup of all units\u2014must be completed during the summer months so they are ready to go for the following school year. White and Morgenstern worked closely with the manufacturer and the manufacturer\u2019s rep, ensuring everything came together seamlessly.<\/p>\n<p>This is the first school year since all the new unit ventilators have been installed. White says the teachers have nothing but praise for the lack of noise and the delivery of consistent temperatures\u2014as well as conditioned fresh air\u2014in the classrooms.<\/p>\n<p>\u201cThe renovations have had a dramatic \u2018ladder\u2019 effect. The students are happy, not distracted, and learning\u2026 which in turn makes the teachers happy, making it easier for them to inspire the student body, which in turn makes the school board happy,\u201d said White.<\/p>\n<p><strong>Conclusion<br \/>\n<\/strong>With more than one-sixth of the entire U.S. population inside K\u201312 public school buildings each weekday, <a href=\"http:\/\/centerforgreenschools.org\/sites\/default\/files\/resource-files\/2016-state-of-our-schools-report.pdf\">school facilities<\/a> have a major impact on the health and performance of students and staff. HVAC upgrades reduce energy consumption and costs\u2014both in educational facility projects and in other commercial segments\u2014and enhance schools\u2019 ability to deliver high-quality education.<\/p>\n<p>&nbsp;<\/p>\n<p><em>Paul Selking is an HVAC business leader with Fort Wayne, Indiana-based Genteq, a Regal brand. A graduate of Purdue University and certified 6 Sigma Black Belt, he has worked for 25 years in the HVAC industry\u2014this experience has offered him an opportunity to speak at the Air-conditioning, Heating, and Refrigeration Institute (AHRI), Air-conditioning Contractors of America (ACCA), Heating, Air-conditioning, and Refrigeration Distributors International (HARDI), and Refrigeration Service Engineers Society (RSES) events. Selking has recently been recognized for his fifth HVAC patent. He may be reached at <a href=\"mailto:paul.selking@regalbeloit.com\">paul.selking@regalbeloit.com<\/a>.<\/em><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>As K\u221212 school budgets dwindle and energy costs rise, fewer resources are dedicated to school operations and maintenance. As a result, the health and performance of these buildings (and the students and staff inside) suffer.<\/p>\n","protected":false},"author":5,"featured_media":43821,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[520,179,449,197,466],"tags":[130,1555,103,131,3691,3291,3286,623],"class_list":["post-43687","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-features","category-masterformat","category-uniformat","category-23-00-00-heating-ventilating-and-air-conditioning-hvac","category-d30heating-ventilation-and-air-conditioning","tag-air-distribution","tag-division-23","tag-hvac","tag-iaq","tag-k-12","tag-michigan","tag-national","tag-schools","entry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Making the (up)grade with HVAC systems - The Construction Specifier<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.constructionspecifier.com\/making-the-upgrade-with-hvac-systems\/\" \/>\n<link rel=\"next\" href=\"https:\/\/www.constructionspecifier.com\/making-the-upgrade-with-hvac-systems\/2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Making the (up)grade with HVAC systems - The Construction Specifier\" \/>\n<meta property=\"og:description\" content=\"As K\u221212 school budgets dwindle and energy costs rise, fewer resources are dedicated to school operations and maintenance. 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