Flammability

HVAC Designated Among ‘Essential’ Workers During COVID-19 Response

HVAC industry employees are included among “Essential Critical Infrastructure Workers During the COVID-19 Response” as designated by the U.S. Department of Homeland Security (DHS). The guidance memorandum states: “If you work in a critical infrastructure industry, as defined by the Department of Homeland Security … you have a special responsibility to maintain your normal work schedule.” The edict comes from the DHS Cybersecurity & Infrastructure Security Agen...

Addressing The Flammability Risks Of New Refrigerants

Refrigerants used in cooling systems for homes and businesses are being replaced with alternatives that have less potential for global warming. But the transition comes at a risk: Some of the new refrigerants are flammable.  Although less flammable than gases such as propane, for example, new refrigerants can still ignite and burn with a high intensity under ideal circumstances. The new materials have low-flame velocity and are less easily ignited; however, one byproduct of combustion is t...

AHR Expo 2020 Review: Ingenuity and Enthusiasm Drive Successful Show in Orlando

There was plenty to see and appreciate at AHR Expo in Orlando. And there is good news to report: Innovation is alive and well in the HVAC market. Some new products on display demonstrated genuine ingenuity. Exhibitors had enthusiasm to spare as they shared what’s new in the market with this first-time visitor to the show. HVAC is not a new market, but it is changing and, in some regards, re-inventing itself. The vibrancy, variety and sheer size of AHR Expo showed off the newest and best th...

Danfoss Announces Launch Of Its New Podcast Series, EnVisioneering Exchange

Danfoss has launched a brand-new podcast series, EnVisioneering Exchange, to address the changing landscape of industry. The podcast will feature thought-provoking interviews and dialogue that discuss the effect on technology and business — from refrigerant and efficiency regulations and standards to the impact of climate change and trends like digitalization and electrification. EnVisioneering Exchange podcast “Today, the HVACR industry — and our built environment as a whole...

AHR Expo 2020 Day Two Review: Exhibitors Focus on Minimizing Costs for HVAC Companies

What is the cost of “rolling a truck” to service an HVAC system, and how can you maximize the efficiency of such a call while minimizing the cost? On the second day of AHR Expo in Orlando, several companies mentioned the benefits of various diagnostic and analytics systems that can be accessed remotely and that provide information for a technician about the nature of a problem, and what parts are needed, before he or she leaves for the call. It’s an example of how technology ca...

AHR Expo 2020: Danfoss Awarded For Interlaced Microchannel Heat Exchanger (iMCHE)

Danfoss’ latest Interlaced Microchannel Heat Exchanger (iMCHE) integrates a chiller or rooftop unit's multiple circuits into a single coil with a shared air heat transfer area, controlling each circuit independently. Using the whole air side heat transfer area when operating under part-load conditions, iMCHE is able to maximize system efficiency. Interlaced Microchannel Heat Exchanger The new iMCHE provides a compact and cost-effective solution for dual-circuit rooftop units The new iMC...

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