Application ranges and refrigerant specification
Application ranges
- R290 for low-temperature and medium-temperature applications, air conditioning applications and heat pumps
- R1270 for low-temperature and medium-temperature applications
- R600 and R600a for heat pumps
WARNINGRisk of bursting due to counterfeit refrigerants!
Serious injuries are possible!
Purchase refrigerants only from reputable manufacturers and reliable distributors!
DANGERRisk of bursting of the refrigerant bottle due to excessive pressure!
Do not overcharge the refrigerant bottle! Never charge more than 80% of the bottle volume with liquid (at 25°C).
Example comparison of H(C)FC refrigerants and halogen-free hydrocarbons: only charge approx. 40% of the net weight (example: R22 10 kg -> R290 4 kg).
Refrigerant specification
Purchase R290/R1270 in refrigerant grade according to DIN 8960:1998 or equivalent (Requirements for hydrocarbons according to DIN 8960:1998).
- Avoid high moisture content!
- Use moisture indicators with defined indication of the degree of drying (< 50 ppm) and a generously sized drier.
This data is also valid for applications with other hydrocarbons and mixtures.
| Requirements | Unit |
|---|---|---|
Refrigerant purity ① | ≥ 99.5 | % by mass |
Organic impurities | ≤ 0.5 | % by mass |
1,3-Butadiene ② | ≤ 5 | ppm (mass) |
Hexane | ≤ 50 | ppm (mass) |
Benzene ③ | ≤ 1 | ppm (substance) |
Sulphur | ≤ 2 | ppm (mass) |
Temperature glide of evaporation | ≤ 0.5 | K (at 5-97% of distill.) |
Non-condensable gases | ≤ 1.5 | % by volume of the vapour phase |
Water ④ | ≤ 25 | ppm (mass) |
Acid content | ≤ 0.02 | mg KOH/g total acid number |
Evaporation residues | ≤ 50 | ppm (mass) |
Solid residues | None | Visual inspection |
①: This content is not expressly stated in DIN 8960. Only the impurities are listed and limited. The main content is the remainder to make 100%.
②: The requirement applies to each single substance from the group of polyunsaturated hydrocarbons.
③: The requirement applies to each single substance from the group of aromatics.
④: Preliminary limit, may be subject to change due to experience.