R-404A vs R-454B
Side-by-side refrigerant comparison with pressure-temperature data
Properties Comparison
| Property | R-404A | R-454B |
|---|---|---|
| Type | Zeotropic | Zeotropic |
| GWP | 3922 | 466 |
Frequently Asked Questions
What is the difference between R-404A and R-454B?
R-404A has a GWP of 3922 and is a zeotropic refrigerant, while R-454B has a GWP of 466 and is a zeotropic refrigerant. They have different operating pressures, capacity characteristics, and application ranges.
Can I replace R-404A with R-454B?
Direct replacement between R-404A and R-454B is not recommended without thorough system evaluation. Check compressor compatibility, oil type, pressure ratings, and safety classification before any refrigerant change.
Which has lower GWP, R-404A or R-454B?
R-454B has a lower GWP (466) compared to R-404A (3922).