Introduction:
R-407A is one of the most preferred R-22 replacements since both refrigerants have similar characteristics when placed under certain conditions. However, R-22, even though it’s a safe and popular HCFC refrigerant, has negative effects on the ozone layer since it contains chlorine. Many countries worldwide signed a treaty (Montreal Protocol) in 1987 to phase out all refrigerants that contained Chlorine by the year 2020, and that’s where R407A came into the market.
The R-407A refrigerant consists of three HFC (hydrofluorocarbons) components. They include R-32 (difluoromethane), R-125 (Pentafluoromethane), and R134A, also known as 1, 1, 1, 2- tetrafluoroethane. Additionally, the refrigerant is environmentally friendly since it has a Global Warming Potential of 1774 and a zero Ozone Depleting Potential.
What else do you need to know about the refrigerant?
It’s essential for every HVAC technician that they know how a refrigerant operates, whether you are recycling, reclaiming, or recovering it.
Therefore, in this article, we will take an in-depth look at the R407A refrigerant from who manufacturers it, its composition, the way it operates, uses of the refrigerant, pros and cons. Let’s jump right into it.
Specification:
| Name | Difluoromethane, Pentafluoroethane, 1,1,1,2-Tetrafluoroethane blend |
| Model | R407A, HFC-407A, R-407A,Freon-407A |
| Classification | Hydroflourocarbon Refrigerant Blend |
| Formula | CHF2CF3/CH2CF2/CH2FCF3 |
| Cas No. | 75-10-5/354-33-6/811-97-2 |
| Replacement for | HCFC R-22 Freon |
Application:
Among the options offered in the Freon refrigerant portfolio, Freon 407A (R-407A) is a high-performance blend. This alternative to R-22 in positive displacement air conditioning (AC) equipment can also:
Replace R-502 in new and retrofitted medium-temperature applications with evaporator temperatures above -6.7 °CC (20 °F)
Work in existing medium-temperature applications
Work in new or existing residential and commercial AC and heat pumps
Replacing R-22 with Freon 407A in these systems requires switching to polyolester (POE) oil. For a no-oil change R-22 replacement.
