ESIE12-06 Precautions for New Refrigerant (R-410A)Appendix 2093. Precautions for New Refrigerant (R-410A)3.1 Outline3.1.1 About Refrigerant R-410A Characteristics of new refrigerant, R-410A1. PerformanceAlmost the same performance as R-22 and R-407C2. PressureWorking pressure is approx. 1.4 times more than R-22 and R-407C.3. Refrigerant compositionFew problems in composition control, since it is a Quasi-azeotropic mixture refrigerant.1. Non-azeotropic mixture refrigerant: mixture of 2 or more refrigerants having different boilingpoints.2. Quasi-azeotropic mixture refrigerant: mixture of 2 or more refrigerants having similar boilingpoints.3. The design pressure is different at each product. Please refer to the installation manual foreach product.(Reference) 1 MPa 10.19716 kgf / cm 2HFC units (Units using new refrigerants) HCFC unitsRefrigerant name R-407C R-410A R-22ComposingsubstancesNon-azeotropic mixtureof HFC32, HFC125 andHFC134a (*1)Quasi-azeotropic mixtureof HFC32 and HFC125(*1)Single-componentrefrigerantDesign pressure 3.2 MPa (gauge pressure)= 32.6 kgf/cm24.0 MPa (gauge pressure)= 40.8 kgf/cm22.75MPa (gauge pressure)= 28.0 kgf/cm2Refrigerant oil Synthetic oil (Ether) Mineral oil (Suniso)Ozone destructionfactor (ODP) 0 0 0.05Combustibility None None NoneToxicity None None NonePressure-Enthalpy curves of HFC-32/125 (50/50wt%)
