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R-424A (RS44)Dropin

R-424A is a mixture of non-azeotropic HFC and HC refrigerant gases, with zero ozone layer depletion, used as a direct drop-in replacement for R-22 in equipment that has fixed (capillary) or adjustable (TXV) expansion systems with evaporation temperatures above -10ºC. 

It is the recommended solution for replacing R-22 in general climatization equipment.  Easy, direct and efficient. With no need to adjust the expansion valve or change the system’s original oil.


· General commercial and domestic air conditioning systems.

· Heat pumps.

· Splits / Multi-splits / Cassette.

· Mobile air conditioners.

· Rooftop Units.

·Window / wall air conditioners.

· Water coolers.

· Supermarket chilled goods equipment.

· Food Storage.

· Cold chambers.

· Refrigerated transport.


  • High temperatures
  • Medium temperatures
  • Drop-in replacement


· Quick, simple and inexpensive substitution.

· Dos not damage the ozone layer, ODP = 0.

· Compatible with the system’s original oil.

· No need for existing equipment to be changed.

· Equipment can be refilled in the case of leakage.

· Although the standard recommendation is not to mix refrigerants, studies undertaken show that technically they can be mixed with R-22 in any proportion.

· Discharge temperatures very much lower than R-22, which extends the life of the compressor.

· It achieves the cooling capacity and energy efficiency of R-22 in the majority of systems.

· Global warming potential (GWP) = 2440

· Boiling point at 1.013 bar (ºC): -38.7

· Temperature slip or glide (ºC): 3

· Saturated vapour density at 25ºC (kg/m3): 43.6

· UN nº: 1078

· Safety classification: A1. Low toxicity and nonflammable.

· Always load in its liquid phase.


  • 1,8 Kg
  • 5 Kg
  • 10 Kg
  • 11,3 Kg
  • 14 Kg
  • 25 Kg
  • 60 Kg
  • 864 Kg
  • 20000 Kg


  • Synthetic POE oils
  • Mineral oils
  • AKB oils


Refrigerant Solutions Ltd

Less temperature slide (glide) than other direct drop-in replacements for R-22 (R-417A, R-417B, R-424A, R-422D, R438A) so that the fractionation of the mixture in the case of leakage is much lower thereby maintaining optimum operating conditions.