Can R404A replace R502?
R404A refrigerant is accepted as an alternative to R502 in the new equipment. It can be used also for charging of some systems operating on R502, such as commercial refrigeration equipment of big universal shops, refrigeration facilities of food industry factories, transport refrigeration facilities.
What replaces R502 Freon?
R404A
R507 is a HFC blend, used as a replacement for R502 and R22 in low and medium temperature refrigeration. With a Global Warming Potential (GWP) of 3985, R507 is under similar scrutiny to R404A.
What is the running pressure of R404A?
What Pressure Should R404a Run at on a Cooler?…R404a Refrigerant Pressure Chart.
| Temperature (Fahrenheit) | Temperature (Celsius) | R404a Pressure |
|---|---|---|
| – 45°F | – 42.8°C | 2 psi |
| – 40°F | – 40°C | 4.3 psi |
| – 35°F | – 37.2°C | 6.8 psi |
| – 30°F | – 34.4°C | 9.6 psi |
What refrigerant will replace R-404A?
For cold rooms and other small to medium commercial refrigeration applications, R448A and R449A and R452A or R134a are excellent alternatives to R404A, with from 50 to 65% reduction in GWP. R513A, newer alternative, is also very appropriate in medium back pressure (MBP) applications.
What is R502 refrigerant?
R502 is a blend of R22/R115 developed for use in low temperature refrigeration applications.
Is R502 refrigerant still used?
Commercial refrigeration systems can perform low temperature refrigeration in a single stage with relatively inexpensive compressors. Since the phase-out of R-502 in 1995, service quantities are still available through recovery and reclaim operations.
What Suva replacement refrigerant is recommended for retrofitting R502 systems?
Suva® HP62
Suva® HP62 (R-404A) is widely recognized as the preferred HFC replacement for R-502 in new equipment and for retrofitting R-502 systems such as supermarket and food service, industrial freezing, and some transport refrigeration.
What is a good superheat for 404a?
Ideally you want to get the head pressure up to around 38’C SCT which on R404a is about 240psi.
What is R502 made from?
What can I use instead of R502 refrigerant?
R507 refrigerant also serves as an alternative to R502 refrigerant in the new equipment, and it can be used for retrofit of the systems operating on R502.
What’s the temperature glide between R404A and R507?
The range over which the temperature varies is referred to as temperature glide. R407A, R407F, R448A and R449A have a temperature glide between 3K and 6K. 9. Polyolester lubricant in use with R404A/R507 is suitable for use with R407A, R407F, R448A and R449A.
Is the refrigerant R-502 harmful to the ozone layer?
R-502 is one of those refrigerants you just do not see around much anymore. R-502 is a CFC refrigerant just like its cousin refrigerant R-12 and R-11. All of these refrigerants were found to be damaging the Ozone layer when they were released into the atmosphere.
Is the refrigerant R-404A a Super pollutant?
404A’s reign however was short lived. R-404A has one of the highest Global Warming Potential numbers of any modern day refrigerant and is known as a super pollutant. Because of this we are seeing various countries and manufacturers no longer using R-404A in new machinery.