an Don’t Overlook Cleaning the Evaporator Coil By www.achrnews.com Published On :: Fri, 18 Oct 2024 07:33:37 -0400 Cleaning evaporator coils in a walk-in cooler can be challenging, but it needs to be done in order to keep the system operating efficiently. Full Article
an Are Geothermal Heat Pumps the Key to a Cleaner Planet? By www.achrnews.com Published On :: Sun, 01 Aug 2021 11:00:00 -0400 Geothermal energy can be used to heat and cool commercial buildings. The highly efficient systems that make this possible are geothermal heat pumps. Full Article
an Integrating the Advantages of Geothermal Into an HVAC Company By www.achrnews.com Published On :: Fri, 05 Nov 2021 07:00:00 -0400 Geothermal heat pumps tap into a renewable source of energy to provide comfort for a home, and HVAC contractors can tap into this market for increased sales. Full Article
an Manufacturers Help Contractors Keep up with Heat Pump Technology as Market Grows By www.achrnews.com Published On :: Mon, 08 Nov 2021 11:00:00 -0500 Manufacturers and contractors are working to educate end users about the ways heat pumps work differently from traditional heat sources. Full Article
an Geothermal Offers an Opportunity for HVAC Contractors By www.achrnews.com Published On :: Mon, 11 Apr 2022 07:00:00 -0400 The moment for geothermal seemed to have arrived several times since the 1970s. A number of factors are forecasting wider use of this type of heating and cooling solution. Full Article
an March 27, 2023 NEWSRoom: Heat Pumps Part of Musk’s Master Plan, AHRI Policy Leadership Award, Enter Top 30 Distributors of 2023 By www.achrnews.com Published On :: Mon, 27 Mar 2023 13:00:00 -0400 Catch up on the latest headlines in our NEWSRoom video series. Full Article
an Project Files: Episode 61 — All-Electric, Zero-Carbon Michigan Home By www.achrnews.com Published On :: Mon, 17 Jul 2023 11:00:00 -0400 This Michigan home is proof that even when achieving high-level green building standards, more can be done to improve sustainability. Full Article
an Geothermal and Decarbonization By www.achrnews.com Published On :: Thu, 07 Mar 2024 07:00:00 -0500 Decarbonization and electrification, the refrigerant transition, and incentives were big topics among geothermal companies at the AHR Expo. Consumer education and ease of product serviceability were also discussed. Full Article
an Virginia Passes Geothermal Bill With Major Financial Incentives By www.achrnews.com Published On :: Tue, 09 Jul 2024 07:00:00 -0400 The bill significantly reduces the cost of a geothermal installation, spurs job creation, and hopes to inspire more contractors to tap into the geothermal market. Full Article
an Understanding the Use of Suction Filters/Driers By www.achrnews.com Published On :: Mon, 03 Feb 2020 03:59:00 -0500 Unfortunately, we can easily forget the role that suction driers can play in protecting the compressor and the compressor oil. Full Article
an Breaking the Code: Controlling Humidity and Particulate to Meet Building Standards By www.achrnews.com Published On :: Mon, 02 Mar 2020 04:00:00 -0500 While balanced ventilation does have energy benefits, there is a misconception about its ability to reduce humidity. Full Article
an Guiding Customers through Indoor Air Quality and the Tips to Maintain IAQ By www.achrnews.com Published On :: Fri, 27 Mar 2020 12:00:00 -0400 As HVAC providers, we have the ability to advise homeowners, builders, and property managers on ways to improve their indoor air quality. Full Article
an A Simple Guide to the Refrigeration Cycle and How Air Conditioners Work By www.achrnews.com Published On :: Tue, 15 Sep 2020 07:00:00 -0400 Four core components work together to control when refrigerant is absorbing heat, and when it is releasing heat. Full Article
an How Can A Direct Drive Design Optimize Cooling Tower Performance? By www.achrnews.com Published On :: Fri, 18 Sep 2020 11:00:00 -0400 A variable speed drive (VSD) controls the speed of the high-torque, direct-drive motor for optimal fan operation. Full Article
an The Secret to Energy and Cost Savings: Pump System Evaluation By www.achrnews.com Published On :: Thu, 08 Oct 2020 11:00:00 -0400 Determining the right pump to save energy in a given application can be broken down into three general steps. Full Article
an Internet of Things Improves HVAC Efficiency and Effectiveness By www.achrnews.com Published On :: Fri, 09 Oct 2020 11:00:00 -0400 IoT-enabled HVAC systems can accommodate a seamless user experience while reducing environmental impact. Full Article
an Upper-Room UVGI: An Infectious Disease Control Strategy By www.achrnews.com Published On :: Tue, 20 Apr 2021 07:00:00 -0400 The pandemic has marked a turning point for an underutilized technology for infectious disease control in buildings. Full Article
an Why Changing Refrigerants May Mean Your Existing Pump Needs Replacing By www.achrnews.com Published On :: Sun, 23 May 2021 11:00:00 -0400 When changing the refrigerant within your pumping application, it is worth discussing the application with a process specialist. Full Article
an Understanding the Formula to Calculate BTUH By www.achrnews.com Published On :: Sun, 20 Jun 2021 11:00:00 -0400 The "magic number" 1.08 is convenience factor. It is a bunch of math combined into one factor as a shortcut, although sometimes more precise calculation is better. Full Article
an Propane Can Offer HVAC Customers A Reliable Option for Backup Power By www.achrnews.com Published On :: Sun, 03 Oct 2021 11:00:00 -0400 The growing electricity demands being placed on the country’s century-old grid are resulting in an increased number of unexpected power outages across the U.S. Full Article
an The 3-4-5 Rule for Walk-In Coolers And Freezers By www.achrnews.com Published On :: Mon, 29 Nov 2021 07:00:00 -0500 During the installation of a new walk-in cooler or freezer, it is imperative the box remain square and level during the assembly of its panels. Full Article
an Public Review of Proposed Revisions to ACCA Manual SPS (HVAC Design for Swimming Pools and Spas) By www.achrnews.com Published On :: Wed, 26 Apr 2023 00:00:00 -0400 The 30-day ANSI public review period closes May 14. Full Article
an Harlan is New Business Development Manager at WAGO By www.achrnews.com Published On :: Tue, 06 Jun 2023 16:49:21 -0400 Amy Harlan, who has an extensive background in electronics and device connectivity, is the new business development manager for device connection technology at the global electronics technology firm. Full Article
an Defining and Calculating Voltage Imbalance By www.achrnews.com Published On :: Wed, 28 Jun 2023 11:00:00 -0400 Saving one compressor will cover the cost of a voltage monitor and then some. Full Article
an Nationwide 250 hp Boiler Achieves 5 ppm NOx Performance By www.achrnews.com Published On :: Wed, 26 Jul 2023 12:30:00 -0400 Equipped with an Oilon LN30 ultra-low NOx burner and Nationwide’s Eagle PLC-based Control System, the 250 hp package boiler achieved average emissions performance of 5 ppm NOx and 0 ppm CO (corrected to 3% O2) during third-party testing. Full Article
an H2VAC: Using Hydrogen Fuel to Decarbonize Heating and Cooling By www.achrnews.com Published On :: Sat, 28 Sep 2024 07:00:00 -0400 Discover how hydrogen fuel is poised to revolutionize HVAC systems by reducing carbon emissions and easing strain on electric grids, driving the industry toward a decarbonized future. Full Article
an Re: shell wildcard expansion (un)safety By seclists.org Published On :: Sun, 10 Nov 2024 14:09:51 GMT Posted by Eli Schwartz on Nov 10The earliest version of the Bash Pitfalls guide that includes a warning about the topic, per the Wayback Machine: https://web.archive.org/web/20090426020027/https://mywiki.wooledge.org/BashPitfalls#Filenames_with_leading_dashes Overall, wildcards are just a classic "here is a programming language footgun, we cannot fix it because the language is backwards compatible to the 90s and earlier" which amounts to: people love bash because... Full Article
an Re: shell wildcard expansion (un)safety By seclists.org Published On :: Sun, 10 Nov 2024 14:12:16 GMT Posted by lists on Nov 10That says nothing about the amusing character # either at the start of a name or after whitespace. Full Article
an Re: shell wildcard expansion (un)safety By seclists.org Published On :: Sun, 10 Nov 2024 19:41:04 GMT Posted by Jeroen Roovers on Nov 10Also available on that very site: https://mywiki.wooledge.org/BashPitfalls?action=recall&rev=329#Filenames_with_leading_dashes and specifically as those changes you mentioned, on that site: https://mywiki.wooledge.org/BashPitfalls?action=diff&rev1=326&rev2=327 Kind regards, jer Full Article
an Re: shell wildcard expansion (un)safety By seclists.org Published On :: Sun, 10 Nov 2024 19:43:19 GMT Posted by Fay Stegerman on Nov 10* Eli Schwartz <eschwartz () gentoo org> [2024-11-10 00:59]: [...] [...] Obviously, shell scripts and wildcards are one of the easiest ways to trip up here. But the underlying issue is that CLI interfaces mix options and arguments: the lack of a clean separation between data and code/commands (another example is e.g. printing unescaped control characters to stdout, something discussed on this list before, and far too common IME, as I... Full Article
an Xen Security Advisory 463 v2 (CVE-2024-45818) - Deadlock in x86 HVM standard VGA handling By seclists.org Published On :: Tue, 12 Nov 2024 12:11:26 GMT Posted by Xen . org security team on Nov 12 Xen Security Advisory CVE-2024-45818 / XSA-463 version 2 Deadlock in x86 HVM standard VGA handling UPDATES IN VERSION 2 ==================== Public release. ISSUE DESCRIPTION ================= The hypervisor contains code to accelerate VGA memory accesses for HVM guests, when the (virtual) VGA is in "standard" mode. Locking involved there has an unusual discipline, leaving... Full Article
an CVE-2024-50386: Apache CloudStack: Directly downloaded templates can be used to abuse KVM-based infrastructure By seclists.org Published On :: Tue, 12 Nov 2024 14:25:57 GMT Posted by Daniel Augusto Veronezi Salvador on Nov 12Severity: important Affected versions: - Apache CloudStack 4.0.0 through 4.18.2.4 - Apache CloudStack 4.19.0.0 through 4.19.1.2 Description: Account users in Apache CloudStack by default are allowed to register templates to be downloaded directly to the primary storage for deploying instances. Due to missing validation checks for KVM-compatible templates in CloudStack 4.0.0 through 4.18.2.4 and 4.19.0.0 through 4.19.1.2, an attacker that... Full Article
an Re: shell wildcard expansion (un)safety By seclists.org Published On :: Tue, 12 Nov 2024 18:02:05 GMT Posted by Ali Polatel on Nov 12Thank you. Around six months ago I added a restriction on filenames with control characters to Sydbox[1] after I had read about a vulnerability here on this list. I think it was about tar but my memory may not serve me right. Sydbox is secure by default, so at first this feature was enabled without any way to turn it off. After a few months of testing with fellow Exherbo Linux developers, we have noticed some package tests (nvim was one of them)... Full Article
an Demand for Frequency Drives on the Uptick By www.achrnews.com Published On :: Mon, 06 Feb 2017 07:34:00 -0500 AC drives are an essential part of the HVAC marketplace, and the growth of the market looks to be exceptional over the next few years. According to MarketsandMarkets, the market is expected to grow from an estimated $15.72 billion in 2016 to $22.07 billion by 2021. Full Article
an High-performance Buildings Zero in on Zero-Net Energy By www.achrnews.com Published On :: Mon, 25 Sep 2017 07:36:00 -0400 State and local regulations are driving new building construction as well as existing buildings to implement energy-efficient technologies in order to meet future carbon emissions reduction goals. These facilities, known as high-performance buildings, strive to deliver optimal efficiency, reliability, value, and comfort to tenants. Full Article
an Panasonic Manages Consumer Comfort, Controllability, and Costs By www.achrnews.com Published On :: Mon, 26 Feb 2018 07:00:00 -0500 Panasonic Corp. of North America is honing in on its focus to make it easier for both residential and commercial building owners to control the temperature and comfort level within the space. The company hit its targets with the introduction of two new products — the ECONAVI air conditioner and the Variable Refrigerant Flow (VRF) Smart Connectivity Controller. Full Article
an Economizers Offer Many Benefits for Rooftop Units, Air Handlers By www.achrnews.com Published On :: Mon, 04 Jun 2018 07:35:00 -0400 Economizers used in rooftop units and air handlers are multipurpose devices that can improve both the energy efficiency and indoor environment in a wide range of commercial buildings. Full Article
an Commercial HVAC Customers Demand Smart RTUs, Manufacturers Deliver By www.achrnews.com Published On :: Mon, 18 Jun 2018 07:36:00 -0400 It is 2018, and this is not your father’s rooftop equipment. The old, reliable system taking up space on the roof has become so much more. Full Article
an See What’s Possible at the New UTC Innovation and Technology Center By www.achrnews.com Published On :: Mon, 09 Jul 2018 07:31:00 -0400 United Technologies Corp. (UTC), the parent company of Carrier Corp., recently opened the new UTC Center for Intelligent Buildings in Palm Beach Gardens, Florida. Full Article
an Advanced Refrigeration Technologies Boosting Energy Efficiency in Supermarkets By www.achrnews.com Published On :: Mon, 03 Sep 2018 07:28:00 -0400 In supermarkets, where HVAC and refrigeration equipment use 50 to 60 percent of all electricity consumed, new technologies and advanced control strategies have been developed to help boost energy efficiency as well as reduce emissions. Full Article
an Cutting-Edge Construction: Putting Energy Management Into Practice By www.achrnews.com Published On :: Mon, 12 Aug 2019 05:27:00 -0400 Here are two examples of the difference that high-performance building features and high-efficiency HVAC technology can make. Full Article
an Industry Responds as Companies Commit to Battling Climate Change By www.achrnews.com Published On :: Mon, 21 Oct 2019 04:36:00 -0400 Corporate America is making pledges to take action against climate change, which is opening up opportunities for HVAC contractors. Full Article
an Manufacturers Meet Demand for More Intelligent Building Controls By www.achrnews.com Published On :: Mon, 18 Nov 2019 04:36:00 -0500 Smart products enable service providers to take a more proactive approach to addressing HVAC system and equipment issues, said Susie Gornick. Full Article
an Johnson Controls acquires EasyIO Building and Energy Management System By www.achrnews.com Published On :: Mon, 25 Nov 2019 11:00:00 -0500 Johnson Controls announced that it closed an agreement to purchase the EasyIO Building and Energy Management System (BEMS) product line. Full Article
an Aircuity is Approved Vendor for Real-Time Energy Management Program By www.achrnews.com Published On :: Tue, 03 Dec 2019 12:00:00 -0500 Aircuity has been named a New York State Energy Research and Development Authority Qualified Vendor for the RTEM program. Full Article
an Acuity Brands to Acquire KE2 Therm By www.achrnews.com Published On :: Wed, 26 Apr 2023 12:00:00 -0400 The acquisition extends Distech Controls’ addressable market into commercial refrigeration. Full Article
an BrainBox AI in Agreement to Acquire ABB’s Multisite Retail Energy Management System Integrator Business By www.achrnews.com Published On :: Thu, 18 May 2023 00:00:00 -0400 BrainBox AI intends to integrate ABB’s MSR business and its installed base of 12,000-plus retail locations in its current operations. Full Article
an Industry Negotiates RTU Efficiency Standards By www.achrnews.com Published On :: Mon, 15 Jun 2015 07:34:00 -0400 While many in the industry are pleased the DOE has taken the opportunity to work together to develop its final rule, exactly how much of the working group’s recommendation the regulatory agency will adopt remains to be seen. Full Article
an DOE, Industry Finalize Standards for Commercial HVAC Products By www.achrnews.com Published On :: Mon, 29 Jun 2015 07:30:00 -0400 After six meetings, the working group reached consensus and provided recommendations for energy conservation standards, test procedures, and metrics. Full Article
an Roof Mount System Secures Solar Racks, HVAC Equipment, and More By www.achrnews.com Published On :: Wed, 29 Jul 2015 10:50:00 -0400 OMG Roofing Products has introduced the PowerGrip Plus roof mount system, a watertight structural attachment system used to secure solar racks, HVAC, and other equipment to roofs covered with thermoplastic (TPO and PVC) membranes. Full Article