HPAC Engineering http://hpac.com/rss.xml en Porter Ranch Natural-Gas Leak: Another Wake-up Call http://hpac.com/blog/porter-ranch-natural-gas-leak-another-wake-call <div class="node-body blog-body">Around the time a state of emergency was being declared for the water crisis in Flint, Mich., the governor of California was declaring a state of emergency in Porter Ranch, a suburb of Los Angeles.</div> <div class="og_rss_groups"><ul class="links"><li class="og_links first last"><a href="/blog/clarks-remarks">Clark&#039;s Remarks</a></li> </ul></div><p><a href="http://hpac.com/blog/porter-ranch-natural-gas-leak-another-wake-call" target="_blank">read more</a></p> http://hpac.com/blog/porter-ranch-natural-gas-leak-another-wake-call#comments Archive Clark&#039;s Remarks Tue, 09 Feb 2016 20:15:00 +0000 21821 at http://hpac.com <p>A woman holds a sign while attending a public hearing before the South Coast Air Quality Management District regarding a proposed stipulated abatement order to stop the natural-gas leak in Granada Hills, near Porter Ranch, Calif., on Jan. 16, 2016. (Photo by David McNew/Getty Images)</p> Trends, Issues, and Best Practices in HVACR and Buildings 2016, Part 2 http://hpac.com/archive/trends-issues-and-best-practices-hvacr-and-buildings-2016-part-2 <div class="field-byline"> Edited by SCOTT ARNOLD, Executive Editor, HPAC Engineering </div> <div class="field-deck"> A cross section of HVACR and buildings professionals offer their views on industry trends and issues or provide tips and best practices to help readers get the most out of their systems in 2016 </div> <div class="node-body article-body">A cross section of HVACR and buildings professionals offer their views on industry trends and issues or provide tips and best practices to help readers get the most out of their systems in 2016.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/archive/trends-issues-and-best-practices-hvacr-and-buildings-2016-part-2" target="_blank">read more</a></p> http://hpac.com/archive/trends-issues-and-best-practices-hvacr-and-buildings-2016-part-2#comments Air Conditioning Internet of Things Building Controls Heating IAQ & Ventilation Piping / Pumping Archive Fri, 05 Feb 2016 15:25:00 +0000 21731 at http://hpac.com Article: Flint Water Crisis Spotlights U.S.’s Aging Infrastructure http://hpac.com/piping-pumping/article-flint-water-crisis-spotlights-us-s-aging-infrastructure <div class="node-body article-body">In a Feb. 1, 2016, article for Environmental Leader, Jessica Lyons Hardcastle cites the American Water Works Association, which estimates replacing U.S. water pipes alone would cost at least $1 trillion, not including the cost of removing lead service lines on private property, over the next 25 years.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/piping-pumping/article-flint-water-crisis-spotlights-us-s-aging-infrastructure" target="_blank">read more</a></p> http://hpac.com/piping-pumping/article-flint-water-crisis-spotlights-us-s-aging-infrastructure#comments Piping / Pumping Fri, 05 Feb 2016 03:52:00 +0000 21711 at http://hpac.com Mark Wilson/Getty Images Papers Address Five Issues Affecting 
U.S. Health-Care Facilities http://hpac.com/archive/papers-address-five-issues-affecting-us-health-care-facilities <div class="node-body article-body">The National Institute of Building Sciences' Academy for Healthcare Infrastructure recently released five white papers addressing some of the most important issues affecting the infrastructure of U.S. health-care facilities.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/archive/papers-address-five-issues-affecting-us-health-care-facilities" target="_blank">read more</a></p> http://hpac.com/archive/papers-address-five-issues-affecting-us-health-care-facilities#comments Archive Thu, 04 Feb 2016 19:18:00 +0000 21701 at http://hpac.com phillyskater/iStock ASHRAE Seeking Papers for 2017 Winter Conference http://hpac.com/ahr-expo/ashrae-seeking-papers-2017-winter-conference <div class="node-body article-body">ASHRAE has announced a call for papers for its 2017 Winter Conference, which will be held Jan. 28 to Feb. 1 in Las Vegas.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/ahr-expo/ashrae-seeking-papers-2017-winter-conference" target="_blank">read more</a></p> http://hpac.com/ahr-expo/ashrae-seeking-papers-2017-winter-conference#comments Air Conditioning AHR Expo Heating IAQ & Ventilation Thu, 04 Feb 2016 16:52:00 +0000 21691 at http://hpac.com Calendar of HVACR Training and Education Events http://hpac.com/training/calendar-hvacr-training-and-education-events <div class="node-body article-body">Are you looking to expand your knowledge and/or sharpen your skills in a particular area of HVACR? Do you have certification requirements you need to meet? Here is a list of upcoming industry education and training events.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/training/calendar-hvacr-training-and-education-events" target="_blank">read more</a></p> http://hpac.com/training/calendar-hvacr-training-and-education-events#comments Air Conditioning AHR Expo Training Building Controls Fire / Smoke Heating Humidity Control IAQ & Ventilation Motors / Drives Piping / Pumping Thu, 04 Feb 2016 16:16:00 +0000 12391 at http://hpac.com User’s Manual to ASHRAE/USGBC/IES Green Standard Available http://hpac.com/archive/user-s-manual-ashraeusgbcies-green-standard-available <div class="node-body article-body">A newly published User’s Manual clarifies the intent and implementation of the building industry’s foremost green building standard by explaining its requirements and providing example applications.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/archive/user-s-manual-ashraeusgbcies-green-standard-available" target="_blank">read more</a></p> http://hpac.com/archive/user-s-manual-ashraeusgbcies-green-standard-available#comments Archive Tue, 02 Feb 2016 03:57:00 +0000 21671 at http://hpac.com Urban Green Council Seeking Entries for 2016 EBie Awards http://hpac.com/archive/urban-green-council-seeking-entries-2016-ebie-awards <div class="node-body article-body">Urban Green Council has issued a call for entries for its EBie Awards, a national juried competition for professionals who have made exceptional improvements to the environmental performance of existing buildings.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/archive/urban-green-council-seeking-entries-2016-ebie-awards" target="_blank">read more</a></p> http://hpac.com/archive/urban-green-council-seeking-entries-2016-ebie-awards#comments Archive Sat, 30 Jan 2016 20:32:00 +0000 21451 at http://hpac.com Aquatherm Obtains Environmental Product Declaration for PP-R Pipe http://hpac.com/piping-pumping/aquatherm-obtains-environmental-product-declaration-pp-r-pipe <div class="node-body article-body">Aquatherm recently announced its polypropylene-random (PP-R) piping systems are the first piping systems in North America to obtain an environmental product declaration (EPD).</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/piping-pumping/aquatherm-obtains-environmental-product-declaration-pp-r-pipe" target="_blank">read more</a></p> http://hpac.com/piping-pumping/aquatherm-obtains-environmental-product-declaration-pp-r-pipe#comments Piping / Pumping Sat, 30 Jan 2016 19:10:00 +0000 21441 at http://hpac.com Survey: Duct Leakage Main Cause of Energy Loss in Commercial Buildings http://hpac.com/iaq-ventilation/survey-duct-leakage-main-cause-energy-loss-commercial-buildings <div class="node-body article-body">In a recent survey on building-performance issues, an overwhelming majority of engineers and other building professionals said they believe duct leakage to be a significant cause of energy loss in commercial buildings.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/iaq-ventilation/survey-duct-leakage-main-cause-energy-loss-commercial-buildings" target="_blank">read more</a></p> http://hpac.com/iaq-ventilation/survey-duct-leakage-main-cause-energy-loss-commercial-buildings#comments IAQ & Ventilation Sat, 30 Jan 2016 03:38:00 +0000 21381 at http://hpac.com Guidance on New ASHRAE/IES Energy-Standard Compliance Path Available http://hpac.com/archive/guidance-new-ashraeies-energy-standard-compliance-path-available <div class="node-body article-body">A newly published document gives users of ANSI/ASHRAE/IES Standard 90.1 (I-P), Energy Standard for Buildings Except Low-Rise Residential Buildings, immediate access to an optional third path for compliance.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/archive/guidance-new-ashraeies-energy-standard-compliance-path-available" target="_blank">read more</a></p> http://hpac.com/archive/guidance-new-ashraeies-energy-standard-compliance-path-available#comments Archive Wed, 27 Jan 2016 04:19:00 +0000 21271 at http://hpac.com 2016 AHR Expo Product Report http://hpac.com/ahr-expo/2016-ahr-expo-product-report <div class="node-body gallery-body">This week, Orlando, Fla., is the center of the HVACR universe, as 60,000 industry professionals gather for the 2016 International Air-Conditioning, Heating, Refrigerating Exposition (AHR Expo).</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/ahr-expo/2016-ahr-expo-product-report" target="_blank">read more</a></p> http://hpac.com/ahr-expo/2016-ahr-expo-product-report#comments Air Conditioning AHR Expo New Products Products Building Controls Heating IAQ & Ventilation Motors / Drives Piping / Pumping Tue, 26 Jan 2016 05:23:00 +0000 19601 at http://hpac.com The Flint Water Crisis and Legionellosis http://hpac.com/blog/flint-water-crisis-and-legionellosis <div class="node-body blog-body">Although officials maintain there is no clear evidence of a direct connection between Flint’s potable-water supply and an outbreak of Legionnaire’s disease, 87 cases, 10 of them fatal, in 17 months, compared with six to 13 cases in the four years prior, is disturbing.</div> <div class="og_rss_groups"><ul class="links"><li class="og_links first last"><a href="/blog/clarks-remarks">Clark&#039;s Remarks</a></li> </ul></div><p><a href="http://hpac.com/blog/flint-water-crisis-and-legionellosis" target="_blank">read more</a></p> http://hpac.com/blog/flint-water-crisis-and-legionellosis#comments Air Conditioning Piping / Pumping Clark&#039;s Remarks Tue, 26 Jan 2016 02:48:00 +0000 21161 at http://hpac.com <p>A shirt worn by a man during a rally at Flint City Hall in Flint, Mich., on Jan. 24, 2016, displays a poisonous logo alongside the text &quot;City of Flint MI Water Dept.&quot; The event was organized by Genesee County Volunteer Militia to protest government corruption the group sees in relation to the Flint water crisis, which resulted in a federal state of emergency. (Photo by Brett Carlsen/Getty Images)</p> Sustainable Buildings Council Honors 2015 Beyond Green Award Winners http://hpac.com/archive/sustainable-buildings-council-honors-2015-beyond-green-award-winners <div class="node-body article-body">The National Institute of Building Sciences Sustainable Buildings Industry Council recently recognized the recipients of 2015 Beyond Green High-Performance Building and Community Awards.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/archive/sustainable-buildings-council-honors-2015-beyond-green-award-winners" target="_blank">read more</a></p> http://hpac.com/archive/sustainable-buildings-council-honors-2015-beyond-green-award-winners#comments Archive Thu, 21 Jan 2016 03:47:00 +0000 19661 at http://hpac.com Photo by Mario Tama/Getty Images Reinventing Green Building—It’s (Past) Time http://hpac.com/archive/reinventing-green-building-it-s-past-time <div class="field-byline"> By JERRY YUDELSON, PE, LEED Fellow, Tucson, Ariz. </div> <div class="field-deck"> The green-building revolution has stalled, with no easy solutions in sight </div> <div class="node-body article-body">Following the December 2015 Paris climate-change agreement, a new way to rate buildings according to climate and environmental impact is needed.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/archive/reinventing-green-building-it-s-past-time" target="_blank">read more</a></p> http://hpac.com/archive/reinventing-green-building-it-s-past-time#comments Archive Thu, 21 Jan 2016 01:01:00 +0000 19651 at http://hpac.com Emerson Network Power Identifies Four Emerging Data-Center Models http://hpac.com/archive/emerson-network-power-identifies-four-emerging-data-center-models <div class="node-body article-body">Emerson Network Power recently released a summary report predicting four emerging archetypes will reshape the way data centers look and operate.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/archive/emerson-network-power-identifies-four-emerging-data-center-models" target="_blank">read more</a></p> http://hpac.com/archive/emerson-network-power-identifies-four-emerging-data-center-models#comments Archive Mon, 18 Jan 2016 04:18:00 +0000 19511 at http://hpac.com artisteer/iStock Input Sought for Facility-Management Global Job-Task Survey http://hpac.com/archive/input-sought-facility-management-global-job-task-survey <div class="node-body article-body">Facility-management professionals from around the world are asked to participate in IFMA’s new Global Job Task Analysis survey.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/archive/input-sought-facility-management-global-job-task-survey" target="_blank">read more</a></p> http://hpac.com/archive/input-sought-facility-management-global-job-task-survey#comments Archive Mon, 18 Jan 2016 02:53:00 +0000 19501 at http://hpac.com cacaroot/iStock New Product Gives Hotels 4-pipe Climate Control with Existing 2-Pipe Systems http://hpac.com/around-web/new-product-gives-hotels-4-pipe-climate-control-existing-2-pipe-systems <div class="field-byline"> News from Nippon PMAC </div> <div class="node-body article-body">A new product designed by Nippon PMAC will now allow hotels to deliver the comfort, efficiency and room-by-room climate control of a 4-pipe system with no structural alteration to its existing 2-pipe installation.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/around-web/new-product-gives-hotels-4-pipe-climate-control-existing-2-pipe-systems" target="_blank">read more</a></p> http://hpac.com/around-web/new-product-gives-hotels-4-pipe-climate-control-existing-2-pipe-systems#comments Around the Web Fri, 15 Jan 2016 16:28:00 +0000 20181 at http://hpac.com ASHRAE to Offer Free Design-Build Sessions at 2016 AHR Expo http://hpac.com/ahr-expo/ashrae-offer-free-design-build-sessions-2016-ahr-expo <div class="node-body article-body">Four educational sessions focused on design-build will be offered free of charge at the 2016 International Air-Conditioning, Heating, Refrigerating Exposition (AHR Expo) as part of ASHRAE’s 2016 Winter Conference.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/ahr-expo/ashrae-offer-free-design-build-sessions-2016-ahr-expo" target="_blank">read more</a></p> http://hpac.com/ahr-expo/ashrae-offer-free-design-build-sessions-2016-ahr-expo#comments AHR Expo Wed, 13 Jan 2016 13:42:00 +0000 19451 at http://hpac.com Adventures of Johnny Tundra, Cold-Weather Engineer: ‘Freeze-Protection Freeze-out' http://hpac.com/galleries/adventures-johnny-tundra-cold-weather-engineer-freeze-protection-freeze-out <div class="node-body gallery-body">At Rosebud County Vocational Technical School, the freeze-protection thermostat on a new rooftop air-handling unit is tripping continually. To Facility Manager Jonas “Wooly” Wolcott’s surprise, Johnny Tundra believes the solution to the rooftop problem lies in the boiler room.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/galleries/adventures-johnny-tundra-cold-weather-engineer-freeze-protection-freeze-out" target="_blank">read more</a></p> http://hpac.com/galleries/adventures-johnny-tundra-cold-weather-engineer-freeze-protection-freeze-out#comments Galleries Heating Tue, 12 Jan 2016 18:46:00 +0000 19441 at http://hpac.com Women in Engineering http://hpac.com/blog/women-engineering <div class="node-body blog-body">During a visit last summer, Kendahl, our 16-year-old granddaughter, shared with my wife and me her interest in pursuing a career in engineering. Unfortunately, she had heard a female role model state engineering is not an appropriate career for a woman.</div> <div class="og_rss_groups"><ul class="links"><li class="og_links first last"><a href="/blog/clarks-remarks">Clark&#039;s Remarks</a></li> </ul></div><p><a href="http://hpac.com/blog/women-engineering" target="_blank">read more</a></p> http://hpac.com/blog/women-engineering#comments Archive Clark&#039;s Remarks Mon, 11 Jan 2016 20:04:00 +0000 19431 at http://hpac.com <p>Highwaystarz-Photography/iStock</p> A New Breed of High-Efficiency Boiler http://hpac.com/heating/new-breed-high-efficiency-boiler <div class="field-byline"> By NERY D. HERNANDEZ, LEED AP BD+C, AERCO International Inc., Blauvelt, N.Y. </div> <div class="field-deck"> Roles of systems view and intelligent monitoring </div> <div class="node-body article-body">A new mindset among engineers, building owners, and facility managers that considers how a boiler fits into an entire water-heating system, coupled with advances in O2-trim technologies and remote-monitoring tools, is helping to create a faster return on investment through lower operating costs.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/heating/new-breed-high-efficiency-boiler" target="_blank">read more</a></p> http://hpac.com/heating/new-breed-high-efficiency-boiler#comments Heating Silver Thu, 07 Jan 2016 19:54:00 +0000 19421 at http://hpac.com Selective Catalytic Reduction for NOx Reduction and Control http://hpac.com/heating/selective-catalytic-reduction-nox-reduction-and-control <div class="field-byline"> By SEAN MCMENAMIN, Nationwide Environmental Solutions, Plano, Texas </div> <div class="field-deck"> Minimizing pollution—and revenue impacts </div> <div class="node-body article-body">Pollution-control equipment should be designed and implemented in such a way as to minimize the impact on revenue-generating processes. This article discusses factors owners should consider when purchasing nitrogen-oxide-control technology, a selective-catalytic-reduction system in particular.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/heating/selective-catalytic-reduction-nox-reduction-and-control" target="_blank">read more</a></p> http://hpac.com/heating/selective-catalytic-reduction-nox-reduction-and-control#comments Heating Silver Thu, 07 Jan 2016 17:28:00 +0000 19411 at http://hpac.com <p>SCR systems for three 900-hp boilers.</p> January 2016 http://hpac.com/hpac-engineering/2016-01-06 <div class="node-body magazine_issue-body"></div> <div class="field-desc"> <p style="font-size: 13px; line-height: 20px;"><a href="http://hpac.com/january-2016-digital-edition" style="font-size: 17px; font-weight: bold;" target="_blank" title="HPAC Engineering January 2016 digital edition">Click here for digital edition</a></p> <div>&nbsp;</div> </div> <fieldset class="fieldgroup group-mag-teasers"> <div class="field-mag-teaser"> <a href="/archive/trends-issues-and-best-practices-hvacr-and-buildings-2016-part-1">Trends, Issues, and Best Practices in HVACR and Buildings 2016, Part 1</a> <a href="/ahr-expo/2016-ahr-expo-product-report">2016 AHR Expo Product Report</a> <a href="/iaq-ventilation/ensuring-products-are-indeed-amca-certified">Ensuring Products Are Indeed AMCA-Certified</a> </div> </fieldset> <fieldset class="fieldgroup group-publication-info"><legend>Publication Info</legend> </fieldset> <div class="og_rss_groups"></div> Wed, 06 Jan 2016 05:00:00 +0000 21681 at http://hpac.com Trends, Issues, and Best Practices in HVACR and Buildings 2016, Part 1 http://hpac.com/archive/trends-issues-and-best-practices-hvacr-and-buildings-2016-part-1 <div class="field-byline"> Edited by SCOTT ARNOLD, Executive Editor, HPAC Engineering </div> <div class="field-deck"> A cross section of HVACR and buildings professionals offer their views on industry trends and issues or provide tips and best practices to help readers get the most out of their systems in 2016 </div> <div class="node-body article-body">A cross section of HVACR and buildings professionals offer their views on industry trends and issues or provide tips and best practices to help readers get the most out of their systems in 2016.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/archive/trends-issues-and-best-practices-hvacr-and-buildings-2016-part-1" target="_blank">read more</a></p> http://hpac.com/archive/trends-issues-and-best-practices-hvacr-and-buildings-2016-part-1#comments Air Conditioning Internet of Things Building Controls Heating IAQ & Ventilation Piping / Pumping Archive Silver Mon, 04 Jan 2016 18:30:00 +0000 19401 at http://hpac.com What to Do About Archaeological Finds on Construction Sites http://hpac.com/archive/what-do-about-archaeological-finds-construction-sites <div class="node-body article-body">The recent discovery of long-buried crypts during a routine water-main-replacement project in New York City’s Washington Square Park should serve as a reminder to developers and contractors that a review of archaeological records is an important part of their due diligence prior to beginning construction, CBRE’s Valuation & Advisory Services group says.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/archive/what-do-about-archaeological-finds-construction-sites" target="_blank">read more</a></p> http://hpac.com/archive/what-do-about-archaeological-finds-construction-sites#comments Archive Thu, 31 Dec 2015 19:02:00 +0000 19391 at http://hpac.com Mypurgatoryyears/iStock Ensuring Products Are Indeed AMCA-Certified http://hpac.com/iaq-ventilation/ensuring-products-are-indeed-amca-certified <div class="field-byline"> By MICHAEL IVANOVICH and LISA ULLRICH, Air Movement and Control Association International, Arlington Heights, Ill. </div> <div class="field-deck"> Five steps to making sure products perform as described and expected </div> <div class="node-body article-body">When building-industry professionals properly specify an AMCA-certified product, they have assurance manufacturer-reported data are accurate. Shortcuts in specification, procurement, and installation, however, can lead to non-certified products being installed.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/iaq-ventilation/ensuring-products-are-indeed-amca-certified" target="_blank">read more</a></p> http://hpac.com/iaq-ventilation/ensuring-products-are-indeed-amca-certified#comments IAQ & Ventilation Silver Thu, 31 Dec 2015 16:49:00 +0000 19381 at http://hpac.com So, You Want to Be a ... Boiler Inspector http://hpac.com/heating/so-you-want-be-boiler-inspector <div class="field-byline"> By WILLIAM VALLANCE, The National Board of Boiler and Pressure Vessel Inspectors, Columbus, Ohio </div> <div class="node-body article-body">Introducing a series of articles explaining responsibilities, physical demands, education and certification requirements, and more for different specialties within the HVACR/buildings industry.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/heating/so-you-want-be-boiler-inspector" target="_blank">read more</a></p> http://hpac.com/heating/so-you-want-be-boiler-inspector#comments Training Heating Silver Thu, 31 Dec 2015 11:39:00 +0000 19371 at http://hpac.com The National Board of Boiler and Pressure Vessel Inspectors Onset Issues White Paper on Managing Carbon-Dioxide Risk http://hpac.com/iaq-ventilation/onset-issues-white-paper-managing-carbon-dioxide-risk <div class="node-body article-body">Data-logger supplier Onset recently announced the availability of the white paper “Managing Carbon Dioxide Risk: What You Should Know.”</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/iaq-ventilation/onset-issues-white-paper-managing-carbon-dioxide-risk" target="_blank">read more</a></p> http://hpac.com/iaq-ventilation/onset-issues-white-paper-managing-carbon-dioxide-risk#comments IAQ & Ventilation Mon, 28 Dec 2015 22:59:00 +0000 19361 at http://hpac.com pay404/iStock Addition of Subclass 2L Refrigerants Proposed for ASHRAE Standard 15 http://hpac.com/archive/addition-subclass-2l-refrigerants-proposed-ashrae-standard-15 <div class="node-body article-body">A proposal to incorporate Subclass 2L flammability classifications into ANSI/ASHRAE Standard 15, Safety Standard for Refrigeration Systems, is open for public comment until Jan. 18, 2016.</div> <div class="og_rss_groups"></div><p><a href="http://hpac.com/archive/addition-subclass-2l-refrigerants-proposed-ashrae-standard-15" target="_blank">read more</a></p> http://hpac.com/archive/addition-subclass-2l-refrigerants-proposed-ashrae-standard-15#comments Archive Mon, 28 Dec 2015 20:48:00 +0000 19351 at http://hpac.com