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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.
A Simple Guide to the Refrigeration Cycle and How Air ... - ACHR …
Sep 15, 2020 · It takes low-pressure gas refrigerant coming into it, and turns it into high-pressure gas by the time the refrigerant leaves, increasing the chemical’s temperature as well. A refrigeration system needs to be pressurized. Take away the compressor, and the refrigerant just sits in the air conditioner without moving. The Condenser.
The Do’s and Don’ts of Hydronic System Glycol - ACHR News
Sep 24, 2020 · Since these systems are pressurized, it is not practical for the average homeowner to check the condition of the antifreeze solution.”. 2. Don’t unbalance the glycol in the system. According to Hogle, more glycol is not better — it is just more. “Since glycol is more viscous than water, the more glycol you add to your system, the less ...
An HVAC Technician’s Guide to R-454B | 2021-03-16 - ACHR News
Mar 16, 2021 · Refrigerant regulations are changing quickly at the state and federal levels, in order to facilitate a smooth transition away from R-410A to lower-GWP refrigerants. Finding a replacement for R-410A has been challenging, but several alternatives have emerged as top contenders. One of those is the mildly flammable (A2L) refrigerant, R-454B, which is …
Three Myths About HVAC Surge Protectors - ACHR News
Nov 16, 2022 · Myth 3: Bigger is better. It is not always the case that a bigger-looking surge protector ensures better performance. In fact, some of the larger surge protectors on the market may have a lower MOV rating than smaller models. The key is to look for a surge protector that is specifically designed for HVAC systems and has reliable performance ...
An HVAC Technician’s Guide To R-32 | 2020-11-12 - ACHR News
November 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 ...
Refrigerant Pressures, States, And Conditions | ACHR News
Apr 28, 2005 · Refrigerant Pressures, States, And Conditions. April 28, 2005. This is the first in a series of columns addressing advanced basics in the understanding of the refrigeration cycle. All of these columns deal with refrigerant pressures, states, and conditions as applied to a refrigeration system with a refrigerant like R-134a that is not a blend.
HVAC Breaking News - ACHR News
5 days ago · The ACHR NEWS Editorial Staff. November 8, 2024. No Comments. New Mexico is jump-starting its rebates program by offering low-income owners of single-family homes up to $1,600 off of home insulation purchased at participating retailers. Later, the state will offer rebates for heat pumps and other high-efficiency appliances.
Best Practices for the Safe Handling of R-290 - ACHR News
Sep 22, 2020 · There has been a lot of discussion lately regarding the use of mildly flammable (A2L) refrigerants such as R-32 and R-454B in comfort cooling applications. These types of refrigerants are not permissible for use in commercial refrigeration equipment, but the flammable refrigerant, R-290 (propane), is allowed in small amounts (currently less than 150 grams in …