Introduction:
The HFC R-404A is one of the most commonly used refrigerants in the United States and in the world. You can find it most commercial refrigerators/freezers, in vending and ice machines, in refrigerated transport, and in specific industrial applications.
404A was originally implemented as a replacement option for the now banned CFC R502. R-502 was widely used throughout all of the applications we mentioned above until 1995/1996 when it was phased out entirely due to it’s Ozone Depletion Potential (ODP). While 404A has been around for decades it’s future may be short lived due to it’s high Global Warming Potential (GWP).
In this post we are going to take an in-depth look at R-404A. In our first section we’ll cover all of the facts, then the pros/cons, points of note, and the history of R-404A.
Specification:
| Name | Blend of R-125, R-143a, & R-134a |
| Model | R404a, HFC-404a, R-404a |
| Classification | HFC Refrigerant - Blend |
| Formula | 44±2% C2HF5,52±1% C2H3F3,4±2% C2H2F4 |
| Cas No. | 811-97-2/420-46-2/354-33-6 |
| Replacement for | CFC R-502, R-12, & R-22 |
Application:
Freon 404A (R-404A) refrigerant gas is applicable for a large range of uses. Such as central air conditioners, commercial refrigeration units, outdoor ac units, refrigeration units, vending machines, showcases, freezers units, etc.
Generally, The r404a refrigerant fit for all R502 based application as it has similarities with R502 refrigerant gas’s properties.
R404a refrigerant gas is also used for many compressor types and their condensing units.
