A Simple Guide to the Refrigeration Cycle and How Air …
WEBSep 15, 2020 · Learn how air conditioners work by using the refrigeration cycle, which involves four core components: compressor, condenser, expansion valve, and evaporator. The web page also explains the role of refrigerants, subcooling, and superheat in the cooling process.
An HVAC Technician’s Guide To R-32 | 2020-11-12 - ACHR News
WEBNov 12, 2020 · Learn about the properties, performance, and safety of R-32, a mildly flammable refrigerant that is replacing R-410A in some HVAC products. Find out how R-32 affects efficiency, capacity, pressures, discharge …
The Do’s and Don’ts of Hydronic System Glycol - ACHR News
WEBSep 24, 2020 · Learn about the different types of glycol used in hydronic HVAC systems, such as propylene glycol and ethylene glycol, and how to choose, balance, and maintain them. Find out how glycol affects the heat transfer efficiency and freeze protection of your system and avoid common mistakes.
Refrigerant Pressures, States, And Conditions | ACHR News
WEBApr 28, 2005 · Learn the basics of refrigerant pressures, states, and conditions in a vapor compression refrigeration system with R-134a. Find out how to measure and interpret condensing and evaporating pressures, saturation …
R-454B Emerges As A Replacement For R-410A | 2020-08-02
WEBAug 2, 2020 · R-454B is a mildly flammable refrigerant that offers comparable capacity and efficiency to R-410A, but with a lower GWP of 465. Learn how OEMs and compressor manufacturers are adopting R-454B as a replacement for R-410A in ducted residential and light commercial packaged systems.
Three Myths About HVAC Surge Protectors - ACHR News
WEBNov 16, 2022 · Learn why not all surge protectors are equal, why more MOVs are not better, and why bigger is not always better for HVAC systems. Find out how to choose the right surge protector for your application and protect …
Understanding Superheat - ACHR News
WEBJun 3, 2004 · Superheat is the difference between the actual temperature of the refrigerant vapor and the saturation temperature of the refrigerant at that same point. Learn how to measure and adjust superheat for evaporator and …
ACHR News Podcast
WEBSep 11, 2024 · What's going on in the air conditioning, heating, and refrigeration industries? Tune it to our podcast channel and find out. These broadcasts give you industry news and engaging interviews.
All You Need To Know About HVAC Capillary Tubes, Part 1
WEBDec 9, 2019 · Learn how capillary tubes meter refrigerant flow and pressure in HVAC systems, and why they are used in small and constant heat load applications. Find out the causes and effects of high superheat and insufficient refrigeration with capillary tubes, and how to size them properly.
A Closer Look at Several Alternatives to R-22 - ACHR News
WEBJun 29, 2020 · Learn about several refrigerants that can replace R-22 in air conditioning or refrigeration applications, such as R-427A, R-407A, and R-421A/B. Find out how to retrofit a system safely and efficiently, and what factors to consider before choosing an alternative.