What is R404A gas?
R-404A is a pseudo-azeotropic mixed refrigerant composed of the three ingredients R-125, R-134a, and R-143a, and was developed as a substitute refrigerant for R-502 and R-22, used in commercial refrigerator equipment for low and medium temperature ranges.
What is R404A refrigerant made of?
Refrigerant Gas R404A is a blend of CF3CHF2 (R-125, 44% by mass), CF3CH3 (R-143A, 52%) and CH2FCF3 (R-134A, 4%). Non-combustible, but toxic gases can be produced by thermal decomposition in a fire. No information available.
What is 404A refrigerant used for?
R-404A is used across a variety of low and medium temperature applications including super market freezers/refrigerators, vending machines, ice machines, refrigerated transport, and industrial refrigerant systems.
Is 404 a flammable?
R-404A is not flammable at ambient temperatures and atmospheric pressure. However, this material will become combustible when mixed with air under pressure and exposed to strong ignition sources.
Is R404A bad for the environment?
The ODP and GWP values of R404A exceed the standard, which has extremely adverse effects on the environment. R-449A is a refrigerant that is fully environmentally friendly.
Is R404A environmentally friendly?
Hydrocarbons are among the most environmentally friendly and convenient refrigerants for cooling and freezing. Current HFC refrigerants (R134a and R404a) have a high Global Warming Potential (GWP) that is harmful to the environment.
Does R404A contain chlorine?
Although chlorine-free refrigerants, such as R134a and R404A/R507A (Structural classification of refrigerants and Substitutes for CFC and HCFC refrigerants) have been widely used − but are already being replaced by alternatives with lower GWP in the EU for example − R22 is still used internationally in many areas, both …
What type of oil does R404A use?
R-404A is a HFC and Polyol Ester is the only approved oil.
What kind of oil do you use with 404A?
R-404A is a HFC and Polyol Ester is the only approved oil. The Alkyl Benzene will not be miscible with the HFC. The HCFC refrigerants have a small amount of chlorine that is miscible with the AB oil. Tests have proven that oil return problems result when AB is used with R-404A.
What is the suction pressure of R404A?
R404a Refrigerant Pressure Chart
| Temperature (Fahrenheit) | Temperature (Celsius) | R404a Pressure |
|---|---|---|
| – 35°F | – 37.2°C | 6.8 psi |
| – 30°F | – 34.4°C | 9.6 psi |
| – 25°F | – 31.7°C | 12.7 psi |
| – 20°F | – 28.9°C | 16 psi |
What is the suction pressure for 404a?
It is necessary to have the temp at 34. When the system is running, the temp in the evap is usually 24 so 32 suction pressure. The liquid line pressure needs to be higher than the outdoor ambient’s saturation temp, so it would be at least 257.
What is un3163?
UN 3163: Liquefied gas, n.o.s. – Substance information – HazMat Tool.