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Precautions for New Refrigerant (R-410A)
SiUS39-602
246
Precautions for New Refrigerant (R-410A)
1.
Precautions for New Refrigerant (R-410A)
1.1
Outline
1.1.1
About Refrigerant R-410A
Characteristics of new refrigerant, R-410A
1. Performance
Almost the same performance as R-22 and R-407C
2. Pressure
Working pressure is approx. 1.4 times more than R-22 and R-407C.
3. Refrigerant composition
Few problems in composition control, since it is a Quasi-azeotropic mixture refrigerant.
★
1. Non-azeotropic mixture refrigerant: mixture of two or more refrigerants having different
boiling points.
★
2. Quasi-azeotropic mixture refrigerant: mixture of two or more refrigerants having similar
boiling points.
★
3. The design pressure is different at each product. Please refer to the installation manual for
each product.
(Reference) 1 MPa
10.19716 kgf / cm
2
1 MPa
145 psi
HFC units (Units using new refrigerants)
HCFC units
Refrigerant name
R-407C
R-410A
R-22
Composing
substances
Non-azeotropic mixture
of HFC32, HFC125 and
HFC134a (*1)
Quasi-azeotropic mixture
of HFC32 and JFC125
(*1)
Single-component
refrigerant
Design pressure
3.2 MPa (gauge pressure)
= 32.6 kgf/cm
2
= 464 psi
4.0 MPa
(gauge
pressure)
= 40.8 kgf/cm
2
= 580 psi
2.75MPa
(gauge pressure)
= 28.0 kgf/cm
2
= 399 psi
Refrigerant oil
Synthetic oil (Ether)
Mineral oil (Suniso)
Ozone destruction
factor (ODP)
0
0
0.05
Combustibility
None
None
None
Toxicity
None
None
None
Pressure-Enthalpy curves of HFC-32/125 (50/50wt%)
Summary of Contents for REYQ72
Page 35: ...Specifications SiUS39 602 24 Specifications...
Page 121: ...Field Setting SiUS39 602 110 Test Operation...
Page 129: ...Troubleshooting by Remote Controller SiUS39 602 118 Troubleshooting...
Page 225: ...Troubleshooting OP Unified ON OFF Controller SiUS39 602 214 Troubleshooting...
Page 232: ...SiUS39 602 Piping Diagrams Appendix 221 1 3 BS Unit BSVQ36MVJU BSVQ60MVJU 4D045338...
Page 235: ...Wiring Diagrams for Reference SiUS39 602 224 Appendix REYQ144 168 192MTJU C 3D050354A...
Page 240: ...SiUS39 602 Wiring Diagrams for Reference Appendix 229 2 4 BS Unit BSVQ36M 60MVJU 3D045069A...
Page 249: ...Example of Connection R 410A Type SiUS39 602 238 Appendix...
Page 255: ...Method of Replacing The Inverter s Power Transistors and Diode Modules SiUS39 602 244 Appendix...
Page 265: ...Precautions for New Refrigerant R 410A SiUS39 602 254 Precautions for New Refrigerant R 410A...
Page 269: ...SiUS39 602 iv Index...