An HVAC Technician’s Guide To R-32 | 2020-11-12 - ACHR News
网页2020年11月12日 · 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 …
ACHR News - Air Conditioning, Heating & Refrigeration News
网页ACHR News is a weekly newsmagazine for HVACR contractors covering residential and commercial contracting. Find the latest news, videos, podcasts, and articles on topics such as marketing, geothermal, building automation, and more.
A Simple Guide to the Refrigeration Cycle and How Air …
网页2020年9月15日 · 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 …
ACHR News Podcast
网页2024年8月19日 · ACHR News Podcast. Each episode features movers and shakers of the industry interviewed by editors of The NEWS staff. Listen as industry individuals discuss and react to the latest HVAC headlines. Subscribe to this Podcast. September 11, 2024. 15:26.
R-454B Emerges As A Replacement For R-410A | 2020-08-02
网页2020年8月2日 · R-454B is a mildly flammable refrigerant that closely matches the properties and performance of R-410A, but has 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.
Understanding Superheat - ACHR News
网页2004年6月3日 · Learn how to measure and adjust superheat, the difference between the actual temperature of the refrigerant vapor and the saturation temperature of the refrigerant at that same point. Find out the types, amounts and errors of …
Refrigerant Pressures, States, And Conditions | ACHR News
网页2005年4月28日 · 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 …
A Closer Look at Several Alternatives to R-22 - ACHR News
网页2020年6月29日 · Learn about several options to replace R-22 in air conditioning or refrigeration applications, such as Forane 427A, R-421A/B, R-407A, and R-407C. Compare their performance, compatibility, and environmental impact with R-22.
Understanding Vacuum Level Measurements | ACHR News
网页2022年7月19日 · Learn how vacuum levels are measured in terms of in. Hg, mm Hg, and microns, and how they relate to atmospheric pressure and system evacuation. A micron is a unit of vacuum that represents 1/25,400 of 1 inch, and …
Don’t Mistake Liquid Line Restriction For an Undercharge of …
网页2020年3月9日 · Learn how to distinguish between a liquid line restriction and an undercharge of refrigerant in a refrigeration system. A liquid line restriction can cause low evaporator pressure, high superheat, low amp draw, and low condensing pressure, while an undercharge can cause low subcooling and high discharge temperature.