Understanding Superheat - ACHR News
WEBJun 3, 2004 · Superheat is a measured value. It is the difference between two temperatures. Superheat is measured as the difference between the actual temperature of the refrigerant vapor and the saturation temperature of the refrigerant at that same point. Superheat on the system's low side can be divided into two types: evaporator superheat and total (or ...
ACHR News - Air Conditioning, Heating & Refrigeration News
WEBEligible residents will be able to save up to $4,000 on an electrical panel upgrade, up to $2,500 on electrical wiring, and up to $840 on an electric stove, cooktop, range, or oven and/or an Energy Star-certified electric heat-pump clothes dryer.
An HVAC Technician’s Guide To R-32 | 2020-11-12 - ACHR News
WEBNovember 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 ...
A Simple Guide to the Refrigeration Cycle and How Air …
WEBSep 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.
ACHR News Podcast
WEBAug 19, 2024 · 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 …
Refrigerant Pressures, States, And Conditions | ACHR News
WEBApr 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 …
An HVAC Technician’s Guide to R-454B | 2021-03-16 - ACHR News
WEBMar 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 manufactured by Chemours.
A Closer Look at Several Alternatives to R-22 - ACHR News
WEBJun 29, 2020 · NON-FLOODED USE: ComStar’s RS-44b can be used to replace R-22 in all non-flooded, high-, medium-, and low-temperature systems down to minus 20°F evaporating temperature. June 29, 2020. While it became illegal to produce or import virgin R-22 into the U.S. as of Jan. 1, 2020, it didn’t mean …
R-454B Emerges As A Replacement For R-410A | 2020-08-02
WEBAug 2, 2020 · PRIMARY SOLUTION: Carrier recently announced that it had chosen R-454B as its primary lower-GWP solution to replace R-410A — such as the unit shown here — in all of its ducted residential and light commercial packaged solutions sold in North America. August 2, 2020. The big debate in the HVACR industry right now is which refrigerant (s ...
Don’t Mistake Liquid Line Restriction For an Undercharge of …
WEBMar 9, 2020 · This small amount of heat to reject will cause a low condensing pressure and temperature. Most of the refrigerant will then be stored in the condenser and receiver, simulating a pumped-down refrigeration system. Symptoms of a liquid line restriction include: Low evaporator (suction) pressure; High superheats;