Hello guys welcome to the new post. Here we will discuss the R422B Refrigerant Chart. R422b is hydrofluorocarbon refrigerant that comes with 3 components They have two hydrofluorocarbons, R-125, R-134A, and one hydrocarbon, R600A. The refrigerant has many features. The 422b was used as a replacement for R22. That makes it best for many drop-in replacements in the market and supports the mineral oil, Poly Olester, and PAG oils. Let get started with R422B Refrigerant Chart
R422B Refrigerant Features
| R22B features | values |
| Environmental Classification | HFC |
| Molecular Weight | 108.5 |
| Boiling Point (1 atm, ˚F) | -42.4 |
| Critical Pressure (psia) | 574.1 |
| Critical Temperature (˚F) | 181.8 |
| Specific Heat Liquid (70 ˚F, BTU/lb. ˚F) | 0.3385 |
| Specific Heat Vapor (1 atm, 70 ˚F, BTU/lb. ˚F) | 0.201 |
| Ozone Depletion Potential (CFC 11 = 1.0) | 0 |
| Global Warming Potential (CO2 = 1.0) | 2525 |
| ASHRAE Standard 34 Safety Rating | A1 |
| Temperature Glide (˚F) (see section 2) | 5 |
| Critical Density, (lb./ft^ 3) | 32.9 |
| Liquid Density (70 ˚F, lb./ft ^ 3) | 73.05 |
| Vapor Density (bp, lb./ft ^ 3) | 0.363 |
| Heat of Vaporization (bp, BTU/lb.) | 84.2 |
R422B Refrigerant Chart
| Liquid (psig) |
Vapor (psig) | Temp (˚F) |
| 0.9 | 2.7” | -40 |
| 3.0 | 0.9” | -35 |
| 5.4 | 1.1 | -30 |
| 7.9 | 3.2 | -25 |
| 10.7 | 5.7 | -20 |
| 13.8 | 8.3 | -15 |
| 17.1 | 11.3 | -10 |
| 20.7 | 14.5 | -5 |
| 24.7 | 18.0 | 0 |
| 29.0 | 21.9 | 5 |
| 33.6 | 26.1 | 10 |
| 38.6 | 30.6 | 15 |
| 43.9 | 35.5 | 20 |
| 49.7 | 40.8 | 25 |
| 55.9 | 46.6 | 30 |
| 62.5 | 52.7 | 35 |
| 69.6 | 59.4 | 40 |
| 77.2 | 66.5 | 45 |
| 85.3 | 74.1 | 50 |
| 94 | 82.2 | 55 |
| 103 | 90.9 | 60 |
| 113 | 100 | 65 |
| 123 | 110 | 70 |
| 134 | 120 | 75 |
| 145 | 132 | 80 |
| 158 | 143 | 85 |
| 170 | 156 | 90 |
| 184 | 169 | 95 |
| 198 | 183 | 100 |
| 213 | 198 | 105 |
| 229 | 213 | 110 |
| 246 | 230 | 115 |
| 263 | 247 | 120 |
| 281 | 265 | 125 |
| 301 | 284 | 130 |
| 321 | 304 | 135 |
| 342 | 326 | 140 |
R422 was added to the system during servicing, if needed without recovering the existing R422B charge. Verify system operation. If the system has a critical charge, it is suggested that any remaining refrigerant be removed before servicing.
This refrigerant mixture must be removed from the cylinder as a liquid. Wok on the instruction of industry approved for recovery of refrigerant and get full vacuum on the system at receiver process end.
422B recovery needed recovery cylinder with a service pressure of 260 psig minimum.
Is R422B a replacement for R-22?
Industries, property owners and other uses R22 replacement for maintaining their air conditioning system can turn R422 refrigerant. it is supported with all standard oils, instruments, and R22 system material.
What is 422B refrigerant used for?
The hydrocarbon component in R422B enhances oil returns to a system having mineral oil. THough HFC refrigerants not mix with these oils, the hydrocarbon components thin mineral oil and maintain it moving about loop.
Do you charge 422B as a gas or liquid?
In many uses lower compressor discharge temperature can be best where the system is operating close to maximum. Chargre the instrument with R422B as a liquid. Not charge liquid refrigerant in the compressor.
Is R422B a blend?
R422B is a highly stable component blend supported with synthetic and mineral oils.
Can you mix r422b with R-407C?
Based on the 609 EPA rule mixing refrigerant is not legal and nobody caught doing but will get high fines.
What is the capacity loss of R422B?
R22 system that transforms to R22B comes with less capacity loss of less than ten percent. The hydrocarbon component in R422B promotes oil return in a system having oil or alkylbenzene.
What is the composition of R-422B?
R-422B known as 1,1,1,2,2-Pentafluoroethane, 1,1,1,2-Tetrafluoroethane, Isobutane
Can you mix 422B with 410a?
The refrigerant is different in their work. The oil used for lubricant to the compressor is different so do not mix them
What is the difference between r422b and MO99?
R422B has a capacity 12 percent lower than R22 and five percent lower thatn MO99. The mass flow rate of R422B is 20 percent high than R22, an extra ten percent higher than MO99.
Is r422b compatible with Poe oil?
(NU22) is good about r422b is that it is compatible with any oil
R422B Applications
- It is used as a replacement for R22. The R22 refrigerant comes with features to increase the system’s working. But one issue is that it has chlorine as it was HCFC refrigerant. Coloring negatively affects the ozone layer which protects UV rays from coming to earth.
- Currently, HFC getting uses manufacturers started using HFC refrigerants to make mixtures such as R422B and R407C. Hfc blends can be drop-in or retrofit. Most experts use two terms interchange but they are not the same.
- For replacement remove R22 and use new refrigerant without varying lubricant or system components. Retrofits can need to vary oil and many system components based on refrigerant requirements.
- We can also use refrigerant as an R417A replacement. The refrigerant is an HFC blend that has the same component as 422B. That is R125, R134A, and R600A. 417A is R22 replacement
R422D Disadvantages
- Refrigerant also has restrictions. That are we not expect to use at the level of working as R22. We can notice a drop in energy efficiency for using it as a replacement, resulting system working for a longer time.
- one other issue for R422 is that it has a greenhouse effect. It has a global warming potential of 2526. So there is a need an EPA certification to buy refrigerant.
What type of refrigerant is R422B?
- R422B is a hydrofluorocarbon refrigerant that has 3c components. R-125, R-134A, are hydrofluorocarbons, and one hydrocabon, R600A.
- The refrigerant have different works and features the main fucntions is 422B is a drop-in replacement for R22.
What is the other name for R22 refrigerant?
- R-22 other name is Chlorodifluoromethane thatis is a colorless gas that is used as a refrigerant. it also caledR-22 Freon, or HCFC- 22 Freon.
What is the difference between MO99 and R422B?
- R422B comes have 12 percent lower capacity than R22 and extra five percent less than MO99. Mass flow rate of R-422B is 20% larger asd compare to R-22.
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