ACHR News - Air Conditioning, Heating & Refrigeration News
Air Conditioning, Heating & Refrigeration News is the weekly newsmagazine of the HVACR contractor covering residential and commercial contracting.
Navigating the 2025 HVAC Refrigerant Transition: A …
Aug 15, 2024 · Defining Low GWP and A2L Refrigerants. GWP stands for Global Warming Potential, a metric developed by the United States Environmental Protection Agency (EPA) to measure the amount of heat trapped in the atmosphere from greenhouse gases.
A Simple Guide to the Refrigeration Cycle and How Air ... - ACHR …
Sep 15, 2020 · The modern air conditioning system cools an indoor space by using the refrigeration cycle. This refrigeration cycle works by controlling the level of energy in the system’s refrigerant: Some parts of the system have energy-packed refrigerant that is ready to release heat, whereas other parts have energy-depleted refrigerant that is ready to absorb heat.
New Cooling Technologies Could Revolutionize HVACR
Sep 24, 2024 · One recent innovation comes from Irish technology firm Exergyn, which is developing a unique solid-state cooling technology based on shape memory alloys (SMAs). SMA solid-state cores are zero GWP, nontoxic, nonflammable, cannot leak, and open up new possibilities for increased energy efficiency and clean cooling.
HVAC Breaking News - ACHR News
Jan 2, 2025 · Sponsored Content is a special paid section where industry companies provide high quality, objective, non-commercial content around topics of interest to The News audience.
An HVAC Technician’s Guide To R-32 | 2020-11-12 - ACHR News
Nov 12, 2020 · Change is coming once again to the HVACR industry, as there is a growing movement to transition from R-410A to lower-GWP refrigerants.California, for example, is proposing a GWP limit of 750 for all new stationary air conditioning systems (residential and commercial) in California starting Jan. 1, 2023, and other states are planning to follow suit.
Refrigerant Pressures, States, And Conditions | ACHR News
Apr 28, 2005 · This is the first in a series of advanced basic articles on the refrigeration cycle. All of these articles deal with refrigerant pressures, states, and conditions as applied to a refrigeration system with a refrigerant like R-134a that is not a blend.
The Do’s and Don’ts of Hydronic System Glycol - ACHR News
Sep 24, 2020 · Antifreeze is one word that hydronic system owners should understand. For the hydronic HVAC contractor, this antifreeze is more accurately described as the heat transfer fluid necessary for the proper functioning of hydronic systems in different regions of the country. Primarily referred to as glycol, the product comes in different formats.
Engineered Systems NEWS | ACHR News
"For those of you mentoring others new to commissioning, I hope this gets you thinking about what your best advice would be," writes ES NEWS contributor Miles Ryan. "It is a fascinating job, but it can be overwhelming."
Three Myths About HVAC Surge Protectors - ACHR News
Nov 16, 2022 · To make an educated decision when selecting a surge protector for an HVAC system, it is important to dispel some common myths. With so many brands, types, and choices on the market, it can be difficult to cut through the noise and figure out what product is right for your application.